Water quality detection sampling device

Abstract

The utility model discloses a water quality detection sampling device, including sampling bucket, the sampling port of setting in the sampling bucket bottom end surface and with the inside of sampling bucket intercommunication, the piston of movable installation in the inside of sampling bucket, the pull rod of fixed in the piston top surface and top end movable penetration to the top of sampling bucket, set up in the top of sampling bucket and with pull rod top end fixed connection's handle, still include the limiting structure of setting in the left side of sampling bucket, the water quality detection sampling device of the application, through the limiting structure in the bucket body one side design, can effectively support the limiting after handle pulling, effectively avoided the problem that water sample was mispropelled because of the mistake of handle in the subsequent carrying process, greatly improved the accuracy and stability of sampling, reduced the workload of operator's resampling, promoted the work efficiency, simultaneously, the limiting structure can also be according to the limiting position of handle of actual sampling demand adaptive regulation.

Description

Technical Field

[0001] This utility model belongs to the field of water quality sampling technology, specifically relating to a water quality testing and sampling device. Background Technology

[0002] In the field of water quality testing, accurate water sampling is a key step in ensuring the reliability of test results. Sampling buckets, as a commonly used water sampling tool, are widely used due to their simple structure and convenient operation. Traditional pull-out sampling buckets typically consist of a bucket body, a handle, a sampling port, and a piston inside the bucket. The working principle is as follows: when in use, the bottom of the sampling bucket is placed in the water body to be sampled, so that the sampling port is completely submerged in the water. Then, by pulling the handle upward, the piston inside the bucket moves upward, creating a pressure difference between the inside and outside of the bucket, thereby drawing water into the bucket and completing the water sample collection.

[0003] However, in actual use, the existing traditional pull-out sampling buckets are prone to problems. After the operator pulls the handle to successfully draw water into the bucket, the handle lacks effective limiting measures. During subsequent handling and transportation, the operator may accidentally push the handle down. Once the handle is pushed down, the piston inside the bucket will move downwards, pushing out a portion of the collected water sample. This not only results in the loss of water sample and affects the accuracy of sampling, but may also require the operator to repeat the sampling operation, increasing workload and causing unnecessary inconvenience. Therefore, this utility model proposes a water quality testing sampling device. Utility Model Content

[0004] The purpose of this invention is to provide a water quality testing and sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water quality testing sampling device, comprising a sampling bucket, a sampling port disposed on the bottom surface of the sampling bucket and communicating with the inside of the sampling bucket, a piston movably installed inside the sampling bucket, a pull rod fixed to the top surface of the piston and whose top end movably extends to the top of the sampling bucket, and a handle disposed on the top of the sampling bucket and fixedly connected to the top end of the pull rod, and further comprising...

[0006] The limiting structure located on the left side of the sampling barrel includes a side base fixed to the left side of the sampling barrel, a side plate fixed to the left side of the handle, a follower rod fixed to the bottom surface of the side plate and movable through to the bottom of the side base, and a press-type locking assembly located between the side base and the follower rod.

[0007] Preferably, the press-type locking assembly includes a side groove formed on the side of the side base, a pressing block movably installed in the side groove, a spring disposed between the inner end of the pressing block and the inner wall of the side groove, an inner sliding groove formed inside the side base, an inner slider movably installed in the inner sliding groove, a limiting block fixed on the side of the inner slider, a plurality of limiting holes corresponding to the limiting block formed on the surface of the follower rod, and two connecting rods connecting the pressing block and the inner slider, wherein the end of the limiting block passes through one of the limiting holes.

[0008] Preferably, the inner end surface of the pressing block is provided with a mounting groove, one end of the spring is fixed in the mounting groove, and the other end of the spring is fixed on the inner wall of the side groove.

[0009] Preferably, two strip-shaped perforations are formed between the side groove and the inner sliding groove, and the strip-shaped perforations correspond to the connecting rod.

[0010] Preferably, one end of the connecting rod is fixed to the inner end surface of the pressing block, and the other end of the connecting rod is fixed to the side of the inner slider.

[0011] Preferably, a guide slide is fixed to the bottom surface of the follower rod, and the guide slide slides in sliding contact with the surface of the sampling bucket.

[0012] Preferably, an annular threaded seat is installed at the bottom of the sampling port, and a metal filter screen is fixed inside the annular threaded seat.

[0013] Preferably, the bottom inner wall of the sampling port is provided with an annular threaded groove, and the outer wall of the annular threaded seat is threadedly connected to the inner wall of the annular threaded groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The water quality testing sampling device of this application, by designing a limiting structure on one side of the bucket, can effectively support and limit it after the handle is pulled up, effectively avoiding the problem of water sample being accidentally pushed out due to accidental contact with the handle during subsequent handling and retrieval, greatly improving the accuracy and stability of sampling, reducing the workload of operators to resample, and improving work efficiency; at the same time, the limiting structure can also adaptively adjust the limiting position of the handle according to actual sampling needs, which can meet the diverse sampling needs in different scenarios and enhance the versatility and practicality of the sampling device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a top sectional view of the push-to-hold component of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation of the annular threaded seat of this utility model;

[0019] In the diagram: 1. Sampling bucket; 2. Handle; 3. Sampling port; 31. Annular threaded groove; 32. Annular threaded seat; 321. Metal filter screen; 4. Piston; 5. Pull rod; 61. Side base plate; 62. Side base; 63. Follower rod; 64. Guide slide; 65. Press-type locking assembly; 651. Side groove; 652. Limiting hole; 653. Pressing block; 654. Spring; 655. Inner slide groove; 656. Inner slider; 657. Limiting block; 658. Connecting rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figures 1 to 3 This is the first embodiment of the present utility model, which provides the following technical solution: a water quality testing sampling device, including a sampling bucket 1, a sampling port 3 disposed on the bottom surface of the sampling bucket 1 and communicating with the inside of the sampling bucket 1, a piston 4 movably installed inside the sampling bucket 1, a pull rod 5 fixed on the top surface of the piston 4 and whose top end movably extends to the top of the sampling bucket 1, and a handle 2 disposed on the top of the sampling bucket 1 and fixedly connected to the top end of the pull rod 5. The above structures are all prior art. In actual sampling, the bottom end of the sampling port 3 is submerged in water, and then the handle 2 is lifted so that the pull rod 5 pulls the piston 4 upward, thereby drawing water into the sampling bucket 1 to complete the sampling. The piston 4 is made of rubber and has good sealing performance.

[0023] Also includes

[0024] The limiting structure located on the left side of the sampling bucket 1 includes a side base 62 welded and fixed to the left side of the sampling bucket 1, a side base plate 61 welded and fixed to the left side of the handle 2, a follower rod 63 welded and fixed to the bottom surface of the side base plate 61 and extending movably through to the bottom of the side base 62, and a press-type locking assembly 65 located between the side base 62 and the follower rod 63. When the operator lifts the handle 2, the side base plate 61 will move along with the follower rod 63. When the handle 2 is pulled to the appropriate position to complete water collection, the press-type locking assembly 65 quickly limits the follower rod 63, thus achieving stable limiting of the handle 2 at this time. This effectively avoids the problem of water sample being accidentally pushed out of the sampling bucket 1 due to accidental contact with the handle 2 during subsequent handling and retrieval.

[0025] In this embodiment, preferably, the press-type locking assembly 65 includes a side groove 651 formed on the side of the side base 62, a pressing block 653 movably installed in the side groove 651, a spring 654 disposed between the inner end of the pressing block 653 and the inner wall of the side groove 651, an inner sliding groove 655 formed inside the side base 62, an inner slider 656 movably installed in the inner sliding groove 655, a limiting block 657 fixed on the side of the inner slider 656, and a plurality of limiting blocks formed on the surface of the follower rod 63. The positioning block 657 has a corresponding limiting hole 652, and two connecting rods 658 connect the pressing block 653 and the inner slider 656. The end of the limiting block 657 passes through one of the limiting holes 652, thus achieving stable limiting of the follower rod 63 and the handle 2 during daily use. If the limitation of the handle 2 needs to be released later, the operator only needs to press the pressing block 653, so that the connecting rod 658 pushes the inner slider 656, causing the end of the limiting block 657 to move. Once the limiting hole 652 is reached, the limiting of the follower rod 63 and the handle 2 can be quickly released. At this time, the handle 2 can be pulled normally to collect water samples. After sampling, simply release the pressing block 653. Under the push of the spring 654, the pressing block 653 pulls back the inner slider 656 through the connecting rod 658, causing the end of the limiting block 657 to engage with the limiting hole 652 in another position. This quickly and stably limits the follower rod 63 and the handle 2. At this time, the operator... Operators can confidently pick up and move the sampling bucket 1 and handle 2. Even if the handle 2 is accidentally pushed during the picking and moving process, it will not cause the handle 2 to shift, ensuring that the water sample in the sampling bucket 1 is not accidentally pushed out, thus ensuring sampling stability. When it is necessary to push out the water sample sucked into the sampling bucket 1 later, the operator only needs to press the pressing block 653 to limit the follower rod 63 and handle 2. It is highly convenient to use, easy to operate, and does not affect the operator's normal rapid water sample collection.

[0026] In this embodiment, preferably, an installation groove is provided on the inner end surface of the pressing block 653, one end of the spring 654 is fixed in the installation groove, and the other end of the spring 654 is fixed on the inner wall of the side groove 651 to ensure the stable installation of the spring 654.

[0027] In this embodiment, preferably, two strip-shaped perforations are formed between the side groove 651 and the inner sliding groove 655, and the strip-shaped perforations correspond to the connecting rod 658, so that the connecting rod 658 can pass through smoothly.

[0028] In this embodiment, preferably, one end of the connecting rod 658 is fixed to the inner end surface of the pressing block 653, and the other end of the connecting rod 658 is fixed to the side of the inner slider 656, so that when the operator presses the pressing block 653, the connecting rod 658 can move together with the inner slider 656 along with the pressing block 653.

[0029] In this embodiment, preferably, a guide slide 64 is also fixed on the bottom surface of the follower rod 63, and the guide slide 64 slides in contact with the surface of the sampling bucket 1, which can play a guiding and supporting role when the follower rod 63 moves up and down in the future.

[0030] Example 2

[0031] Please see Figures 1 to 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that an annular threaded seat 32 is also installed at the bottom of the sampling port 3, and a metal filter screen 321 is fixed inside the annular threaded seat 32, so that when water enters the sampling bucket 1, it can be initially filtered by the metal filter screen 321 to prevent some large aquatic plants and other foreign objects in the water from being sucked in.

[0032] In this embodiment, preferably, the inner wall of the bottom end of the sampling port 3 is provided with an annular threaded groove 31, and the outer wall of the annular threaded seat 32 is threadedly connected to the inner wall of the annular threaded groove 31, so that the annular threaded seat 32 can be screwed into the inner side of the annular threaded groove 31 for stable installation. The bottom surface of the annular threaded seat 32 is evenly distributed with multiple protrusions, which facilitate the operator to rotate and twist the threaded seat 32 during the disassembly and assembly process, and facilitate the application of force during rotation.

[0033] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water quality testing sampling device, comprising a sampling bucket (1), a sampling port (3) disposed on the bottom surface of the sampling bucket (1) and communicating with the interior of the sampling bucket (1), a piston (4) movably installed inside the sampling bucket (1), a pull rod (5) fixed on the top surface of the piston (4) and whose top end movably extends to the top of the sampling bucket (1), and a handle (2) disposed on the top of the sampling bucket (1) and fixedly connected to the top end of the pull rod (5), characterized in that: It also includes a limiting structure set on the left side of the sampling barrel (1), including a side base (62) fixed on the left side of the sampling barrel (1), a side base plate (61) fixed on the left side of the handle (2), a follower rod (63) fixed on the bottom surface of the side base plate (61) and movable through to the bottom of the side base (62), and a press-type locking assembly (65) set between the side base (62) and the follower rod (63).

2. The water quality testing and sampling device according to claim 1, characterized in that: The press-type locking assembly (65) includes a side groove (651) opened on the side of the side base (62), a pressing block (653) movably installed in the side groove (651), a spring (654) disposed between the inner end of the pressing block (653) and the inner wall of the side groove (651), an inner slide groove (655) opened inside the side base (62), an inner slider (656) movably installed in the inner slide groove (655), a limiting block (657) fixed on the side of the inner slider (656), a plurality of limiting holes (652) corresponding to the limiting block (657) opened on the surface of the follower rod (63), and two connecting rods (658) connected between the pressing block (653) and the inner slider (656), and the end of the limiting block (657) extends through one of the limiting holes (652).

3. The water quality testing and sampling device according to claim 2, characterized in that: The inner end surface of the pressing block (653) is provided with a mounting groove, one end of the spring (654) is fixed in the mounting groove, and the other end of the spring (654) is fixed on the inner wall of the side groove (651).

4. The water quality testing and sampling device according to claim 2, characterized in that: Two strip-shaped perforations are provided between the side groove (651) and the inner sliding groove (655), and the strip-shaped perforations correspond to the connecting rod (658).

5. A water quality testing and sampling device according to claim 4, characterized in that: One end of the connecting rod (658) is fixed to the inner end surface of the pressing block (653), and the other end of the connecting rod (658) is fixed to the side of the inner slider (656).

6. The water quality testing and sampling device according to claim 1, characterized in that: The bottom surface of the follower rod (63) is also fixed with a guide slide (64), and the guide slide (64) slides in contact with the surface of the sampling bucket (1).

7. A water quality testing and sampling device according to claim 1, characterized in that: The bottom end of the sampling port (3) is also equipped with an annular threaded seat (32), and a metal filter screen (321) is fixed inside the annular threaded seat (32).

8. A water quality testing and sampling device according to claim 7, characterized in that: The sampling port (3) has an annular threaded groove (31) on the inner wall at the bottom end, and the outer wall of the annular threaded seat (32) is threadedly connected to the inner wall of the annular threaded groove (31).

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