Sampling device for physical and chemical inspection of barreled drinking water

Abstract

The utility model provides a sampling device for physical and chemical inspection of barreled drinking water, and relates to the technical field of sampling for physical and chemical inspection. The sampling tube comprises a tube body I, a tube body II and a tube body III which are integrally formed, and the tube body II is positioned between the tube body I and the tube body III; the second pipe body is in a hollow circular truncated cone shape, the inner diameter of the first pipe body is the same as the inner diameter of the circle of the end, with the large circular truncated cone face, of the second pipe body, and the inner diameter of the third pipe body is the same as the inner diameter of the circle of the end, with the small circular truncated cone face, of the second pipe body. A sampling hole is formed in the end, away from the second pipe body, of the third pipe body and communicated with the second pipe body, and the hole diameter of the sampling hole is smaller than the inner diameter of the second pipe body. By arranging the sampling pipe and the sealing structure, the sealing structure is arranged to be in the form of the first sealing plug, the second sealing plug and the third sealing plug, the sealing convenience and the sealing effect can be improved, and efficient sampling is achieved.

Description

Technical Field

[0001] This utility model relates to the field of physical and chemical testing and sampling technology, specifically to a physical and chemical testing and sampling device for bottled drinking water. Background Technology

[0002] Before conducting physicochemical tests on bottled drinking water, it is necessary to use a sampling device to take samples of the bottled drinking water.

[0003] In the prior art, when sampling is performed using a sampling device, a sampling tube and a sampling sealing structure are often used to complete the sampling operation. During sampling, a push rod is used to drive the sealing structure to slide along the inside of the sampling tube to open or close the sampling hole. However, when the push rod on the sampling device pushes the sealing structure to close the sampling hole, the sealing structure is difficult to align with the sampling hole, resulting in low sampling efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a sampling device for physicochemical testing of bottled drinking water, which solves the problem in existing technologies where the sealing structure is difficult to align with the sampling hole when the push rod on the sampling device pushes the sealing structure to block the sampling hole.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] In this utility model, the sampling device for physicochemical testing of bottled drinking water includes a sampling tube;

[0009] The sampling tube includes an integrally formed tube body one, tube body two, and tube body three, with tube body two located between tube body one and tube body three;

[0010] The second tube is a hollow frustum shape. The inner diameter of the first tube is the same as the inner diameter of the larger end of the frustum of the second tube. The inner diameter of the third tube is the same as the inner diameter of the smaller end of the frustum of the second tube.

[0011] A sampling hole is provided at the end of the tube body three that is away from the tube body two and is connected to the tube body two. The diameter of the sampling hole is smaller than the inner diameter of the tube body two.

[0012] The sampling tube is equipped with a push rod inside. A sealing structure is installed at one end of the push rod near the tube body. The sealing structure includes an integrally formed sealing plug one, sealing plug two, and sealing plug three. The sealing plug three is frustum-shaped, and the end near the sampling hole is the end with the smaller diameter of the frustum.

[0013] The sampling tube and the sealing structure are combined to form a sampling structure for sampling.

[0014] Furthermore, a slider is fixedly sleeved on the push rod, and the push rod slides along the inner wall of the sampling tube via the slider.

[0015] Furthermore, the slider is provided with multiple sliding plates at equal intervals in a ring, and the inner wall of the sampling tube is provided with multiple sliding grooves that correspond one-to-one with the sliding plates. The slider is slidably connected to the sampling tube through the multiple sliding plates and multiple sliding grooves.

[0016] Furthermore, the sampling structure also includes a cover with a limiting groove. A limiting block is fixedly fitted on the outer surface of the sampling tube. The sampling tube passes through the limiting groove, passes through the cover, and extends into the water bucket to take a sample.

[0017] Furthermore, a limiting block 2 is fixedly sleeved on the outer wall of the two ends of the sampling tube away from the tube body, and the outer diameter of the limiting block 2 is larger than the groove diameter of the limiting groove.

[0018] Furthermore, a limiting block is slidably sleeved on the outer wall of the two ends of the sampling tube away from the tube body, and the limiting block is fixed when it slides to any position;

[0019] The first limiting block is gear-shaped, and the limiting groove is adapted to the first limiting block.

[0020] Furthermore, the outer surface of the sampling tube is provided with multiple equally spaced graduations.

[0021] (III) Beneficial Effects

[0022] This invention provides a sampling device for physicochemical testing of bottled drinking water. Compared with the prior art, it has the following advantages:

[0023] By setting up a sampling tube and a sealing structure, with the sealing structure in the form of sealing plug one, sealing plug two, and sealing plug three, and sealing plug three being shaped like a frustum, the problem of the sealing structure being difficult to align with the sampling hole when sealing the sampling tube after sampling is completed is solved in the prior art. At the same time, the multi-layered arrangement of the sealing structure achieves double-layer sealing at the sampling end of the sampling tube, and the multi-layered arrangement of the sealing structure also makes it easy to align with the sampling hole and seal the sampling end of the sampling tube, thus avoiding the problem of misalignment during the sealing process. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a sampling device for physicochemical testing of bottled drinking water installed on a water barrel for sampling.

[0026] Figure 2 for Figure 1 A three-dimensional view of the sampling structure in the middle;

[0027] Figure 3 for Figure 2 A three-dimensional view of the middle cover;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the sampling tube;

[0029] Figure 5 This is a cross-sectional structural diagram of the sampling tube and its cap during installation.

[0030] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0031] Figure 7 This is a schematic diagram of the sampling tube.

[0032] Figure label:

[0033] 1. Sampling structure; 10. Cover; 101. Limiting groove; 11. Sampling tube; 111. Tube body one; 112. Tube body two; 113. Tube body three; 114. Push rod; 115. Sealing structure; 1151. Sealing plug one; 1152. Sealing plug two; 1153. Sealing plug three; 1154. Gap; 116. Sliding block; 117. Slide groove; 12. Limiting block one; 13. Limiting block two; 2. Water bucket. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] This application provides a sampling device for physicochemical testing of bottled drinking water, which solves the problem in the prior art where the sealing structure is difficult to align with the sampling hole when the push rod on the sampling device pushes the sealing structure to block the sampling hole, thus achieving efficient sampling.

[0036] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0037] In the prior art, when sampling is performed using a sampling device, a sampling tube and a sampling sealing structure are often used to complete the sampling operation. During sampling, a push rod is used to drive the sealing structure to slide along the inside of the sampling tube to open or close the sampling hole. However, when the push rod on the sampling device pushes the sealing structure to close the sampling hole, the sealing structure is difficult to align with the sampling hole, resulting in low sampling efficiency.

[0038] Research has found that, for example Figures 1-7 As shown, by setting up a sampling tube and a sealing structure, the sealing structure is set in the form of sealing plug one, sealing plug two, and sealing plug three, with sealing plug three being set in a frustum shape. This solves the problem in the prior art where, after sampling is completed, it is difficult to align the sealing structure with the sampling hole when sealing the sampling tube with the sealing structure. At the same time, by using the multi-layer setting on the sealing structure, a double-layer seal is achieved at the sampling end of the sampling tube, and the multi-layer setting of the sealing structure also makes it easy to align with the sampling hole and easily seal the sampling end of the sampling tube, thus avoiding the problem of difficulty in alignment during the sealing process.

[0039] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0040] Example:

[0041] like Figure 1 as well as Figures 4-6 As shown, a sampling device for physicochemical testing of bottled drinking water includes a sampling tube 11;

[0042] The sampling tube 11 includes an integrally formed tube body 111, tube body 112 and tube body 113, with tube body 112 located between tube body 111 and tube body 113.

[0043] The second tube 112 is a hollow frustum shape. The inner diameter of the first tube 111 is the same as the inner diameter of the larger end of the frustum of the second tube 112. The inner diameter of the third tube 113 is the same as the inner diameter of the smaller end of the frustum of the second tube 112.

[0044] A sampling hole is provided at the end of the tube body 3 113 that is away from the tube body 2 112 and is connected to the tube body 2 112. The diameter of the sampling hole is smaller than the inner diameter of the tube body 2 112.

[0045] The sampling tube 11 is equipped with a push rod 114 inside. A sealing structure 115 is installed at one end of the push rod 114 near the tube body 113. The sealing structure 115 includes an integrally formed sealing plug 1151, sealing plug 2 1152 and sealing plug 3 1153. The sealing plug 3 1153 is frustum-shaped, and the end near the sampling hole is the end with the smaller diameter of the frustum.

[0046] The sampling tube 11 and the sealing structure 115 are combined to form the sampling structure 1, which is used for sampling.

[0047] Sampling period one: During sampling, the sealing structure 115 is separated from the tube body 112, the water in the water bucket 2 enters the sampling tube 11, and the sealing structure 115 is used to collect the sample.

[0048] Sampling period two: During sealing, sealing plug one 1151 seals with the inner wall of tube body two 112, sealing plug three 1153 seals with the wall of the sampling hole, and a gap 1154 is formed between sealing plug two 1152 and tube body two 112.

[0049] By setting up a sampling tube 11 and a sealing structure 115, and configuring the sealing structure 115 in the form of a first sealing plug 1151, a second sealing plug 1152, and a third sealing plug 1153, with the third sealing plug 1153 being shaped like a frustum, the problem in the prior art where the sealing structure 115 is difficult to align with the sampling hole when sealing after sampling is completed is solved. At the same time, the multi-layered arrangement on the sealing structure 115 achieves double-layer sealing of the sampling end of the sampling tube 11, and the multi-layered arrangement of the sealing structure 115 also makes it easy to align with the sampling hole and easily seal the sampling end of the sampling tube 11, without causing the problem of difficulty in alignment during the sealing process.

[0050] like Figure 4 As shown, a slider 116 is fixedly sleeved on the push rod 114, and the push rod 114 slides along the inner wall of the sampling tube 11 via the slider 116.

[0051] By setting the slider 116, the stability of the push rod 114 when pushing the sealing structure 115 to seal the sampling end is improved.

[0052] like Figure 4 As shown, the slider 116 is provided with multiple sliding plates arranged in a ring at equal intervals, and the inner sidewall of the sampling tube 11 is provided with multiple sliding grooves 117 corresponding to the sliding plates. The slider 116 is slidably connected to the sampling tube 11 through the multiple sliding plates and the multiple sliding grooves 117.

[0053] By further configuring the slider 116, the slider 116 is configured as a combination of multiple sliding plates, and the sliding plates are limited by the corresponding sliding grooves 117, which further improves the stability of the push rod 114 sliding in the sampling tube 11, and further facilitates the sealing operation of the sealing structure 115 on the sampling end.

[0054] like Figures 1-3 as well as Figure 5 As shown, the sampling structure 1 also includes a cover 10, on which a limiting groove 101 is provided. A limiting block 12 is fixedly sleeved on the outer surface of the sampling tube 11. The sampling tube 11 passes through the limiting groove 101 through the cover 10 and extends into the water bucket 2 to take a sample.

[0055] By setting the cap 10, during sampling, the cap 10 is placed on the port 2 of the water bucket, specifically as follows: Figure 1 As shown, the sampling tube 11 is then passed through the limiting groove 101 on the cover 10. The limiting groove 101 ensures that the sampling tube 11 is as vertical as possible to prevent the sampling tube 11 from deflecting. The sampling end of the sampling tube 11 comes into contact with the wall of the water bucket 2, which causes the sampling end to be impacted, resulting in subsequent problems with poor sealing.

[0056] like Figures 1-2 As shown, a limiting block 13 is fixedly sleeved on the outer wall of the end of the sampling tube 11 away from the tube body 112, and the outer diameter of the limiting block 13 is larger than the groove diameter of the limiting groove 101.

[0057] By setting the limiting block 13, the sampling tube 11 is limited to prevent it from completely passing through the limiting groove 101 and falling directly into the water bucket 2, thus preventing experimental contamination.

[0058] like Figure 2 and Figure 5 As shown, a limiting block 12 is slidably sleeved on the outer wall of the end of the sampling tube 11 away from the tube body 2 112, and the limiting block 12 is fixed when it slides to any position.

[0059] The limiting block 12 is gear-shaped, and the limiting groove 101 is adapted to the limiting block 12.

[0060] By setting a limiting block 12, which is fixed to the cover 10 by engaging with the limiting block 12, the problem of the cover 10 being easily lost when sampling is not being performed can be effectively prevented.

[0061] It should be noted that the limiting block 12 and the sampling tube 11 are detachable, and the limiting block 12 can slide to any position or be fixed in any position depending on the sampling amount.

[0062] Limiting block 12 and limiting block 23 can be set simultaneously, or only limiting block 12 can be set.

[0063] It should be noted that, in order to facilitate adjustment and ensure stability during the adjustment process, the limit block 12 is made of rubber.

[0064] like Figure 7 As shown, the outer surface of the sampling tube 11 is provided with multiple equally spaced graduations to control the sampling amount.

[0065] During operation, firstly, release the sampling tube 11 from the locking connection between the limiting block 12 and the cover 10;

[0066] When it is necessary to specifically limit the sampling amount, the limiting block 12 is slidably fitted onto the corresponding depth on the outer surface of the sampling tube 11 and fixed according to the sampling amount;

[0067] Next, the cover 10 is fitted onto the port of the bucket 2, and the sampling tube 11 is inserted into the bucket 2 through the limiting groove 101. At this time, the limiting block 12 is misaligned with the limiting groove 101, and the cover 10 supports the limiting block 12.

[0068] Water from bucket 2 enters sampling tube 11 through sampling hole. Then, push rod 114 to seal sampling hole with sealing structure 115, thus completing sampling.

[0069] Otherwise, when there is no need to specifically limit the sampling amount, the limit block 12 may not be installed on the sampling tube 11 during sampling;

[0070] Next, the cap 10 is fitted onto the port of the water bucket 2, and the sampling tube 11 is inserted into the water bucket 2 through the limiting groove 101 to take a sample. The sampling depth is the distance between the sampling hole and the water surface. Similarly, the push rod 114 is pushed to seal the sampling hole with the sealing structure 115, thus completing the sampling.

[0071] Finally, pull the push rod 114 to release the seal of the sealing structure 115 on the sampling hole, and place the water sample obtained into the test tube for laboratory testing.

[0072] When the sampling tube 11 is not in use, the sampling tube 11 is locked inside the limiting groove 101 by the limiting block 12, thereby fixing the sampling tube 11 and the cover 10 and preventing the cover 10 from being easily lost.

[0073] It should be noted that when the sealing structure 115 achieves the sealing of the sampling hole, the sealing plug 1151 seals with the inner wall of the tube body 112, and the sealing plug 1153 seals with the hole wall of the sampling hole, thus achieving a double-layer sealing effect.

[0074] Both the limiting groove 101 and the limiting block 12 are cylindrical gear-shaped, and the limiting groove 101 and the limiting block 12 are compatible. When the limiting block 12 is misaligned with the teeth of the limiting groove 101, the cover 10 supports the limiting block 12. When the limiting block 12 is placed in correspondence with the teeth of the limiting groove 101, the cover 10 and the limiting block 12 are engaged and fixed.

[0075] In summary, compared with existing technologies, it has the following beneficial effects:

[0076] 1. By setting up a sampling tube 11 and a sealing structure 115, and setting the sealing structure 115 in the form of sealing plug one 1151, sealing plug two 1152 and sealing plug three 1153, and setting the sealing plug three 1153 in the shape of a frustum, the problem of the sealing structure 115 being difficult to align with the sampling hole when sealing with the sealing structure 115 after sampling is completed in the prior art is solved. At the same time, by using the multi-layer setting on the sealing structure 115, a double-layer seal is achieved at the sampling end of the sampling tube 11, and the multi-layer setting of the sealing structure 115 also makes it easy to align with the sampling hole and easy to seal the sampling end of the sampling tube 11, without causing the problem of difficulty in alignment during the sealing process.

[0077] 2. By setting the slider 116, the stability of the push rod 114 pushing the sealing structure 115 to seal the sampling end is improved.

[0078] 3. By further modifying the slider 116, the slider 116 is configured as a combination of multiple sliding plates, and the sliding plates are limited by corresponding grooves 117, which further improves the stability of the push rod 114 sliding in the sampling tube 11, and further facilitates the sealing operation of the sealing structure 115 on the sampling end.

[0079] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0080] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sampling device for physicochemical testing of bottled drinking water, characterized in that, Including sampling tube (11); The sampling tube (11) includes an integrally formed tube body one (111), tube body two (112) and tube body three (113), with tube body two (112) located between tube body one (111) and tube body three (113); The second tube (112) is a hollow frustum shape. The inner diameter of the first tube (111) is the same as the inner diameter of the larger end of the frustum of the second tube (112). The inner diameter of the third tube (113) is the same as the inner diameter of the smaller end of the frustum of the second tube (112). The end of the tube body three (113) away from the tube body two (112) is provided with a sampling hole, which is connected to the tube body two (112). The diameter of the sampling hole is smaller than the inner diameter of the tube body two (112). The sampling tube (11) is equipped with a push rod (114) inside. A sealing structure (115) is installed at one end of the push rod (114) near the tube body (113). The sealing structure (115) includes an integrally formed sealing plug one (1151), sealing plug two (1152) and sealing plug three (1153). The sealing plug three (1153) is frustum-shaped, and the end near the sampling hole is the end with the smaller diameter of the frustum. The sampling tube (11) and the sealing structure (115) are combined to form a sampling structure (1) for sampling.

2. The sampling device for physicochemical testing of bottled drinking water as described in claim 1, characterized in that, A slider (116) is fixedly sleeved on the push rod (114), and the push rod (114) slides along the inner wall of the sampling tube (11) through the slider (116).

3. The sampling device for physicochemical testing of bottled drinking water as described in claim 2, characterized in that, The slider (116) is provided with multiple sliding plates at equal intervals in a ring. The inner wall of the sampling tube (11) is provided with multiple sliding grooves (117) that correspond one-to-one with the sliding plates. The slider (116) is slidably connected to the sampling tube (11) through the multiple sliding plates and the multiple sliding grooves (117).

4. A sampling device for physicochemical testing of bottled drinking water as described in any one of claims 1-3, characterized in that, The sampling structure (1) also includes a cover (10), on which a limiting groove (101) is provided. A limiting block (12) is fixedly fitted on the outer surface of the sampling tube (11). The sampling tube (11) passes through the limiting groove (101) through the cover (10) and extends into the water bucket (2) to take a sample.

5. The sampling device for physicochemical testing of bottled drinking water as described in claim 4, characterized in that, A limiting block 2 (13) is fixedly sleeved on the outer wall of the end of the sampling tube (11) away from the tube body 2 (112), and the outer diameter of the limiting block 2 (13) is larger than the groove diameter of the limiting groove (101).

6. The sampling device for physicochemical testing of bottled drinking water as described in claim 5, characterized in that, A limiting block (12) is slidably sleeved on the outer wall of the end of the sampling tube (11) away from the tube body (112), and the limiting block (12) is fixed in any position when it is slidably moved. The limiting block (12) is gear-shaped, and the limiting groove (101) is adapted to the limiting block (12).

7. The sampling device for physicochemical testing of bottled drinking water as described in claim 1, characterized in that, The outer surface of the sampling tube (11) is provided with multiple equally spaced graduations.

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