Self-blocking structure and auxiliary device of dry powder sampler

Abstract

The utility model relates to the field of dry powder sampling, and discloses a self-blocking structure and a dry powder sampler auxiliary device, the self-blocking structure comprises a supporting part (10) and a blocking part (20), the blocking part (20) is arranged on the supporting part (10) so as to be supported by the supporting part (10) and block a sampling opening of a sample bag, the blocking part (20) comprises a plurality of blocking pieces (21), and the blocking pieces (21) are arranged on the supporting part (10). The plurality of separation blades (21) are in contact with one another in a natural state so as to seal the sampling opening, and can be separated from one another under the action of a sampler so as to allow the sampler to be inserted into the sampling opening through the stop part (20) for sampling. When the self-blocking structure is used for sampling, the blocking sheets are separated from each other, the sampler can be inserted into the sampling port through the blocking part for sampling, the blocking part can block the sampling port after sampling is finished, the blocking effect is good, the cost is low, the self-blocking structure is simple and convenient to operate during sampling, and the self-blocking structure can be repeatedly used for sampling.

Description

Technical Field

[0001] The utility model relates to the field of dry powder sampling, in particular to a self-sealing structure and a dry powder sampler auxiliary device. Background Art

[0002] Currently, sampling of bagged dry powder is typically done at the top, middle, and bottom of the bag. Existing samplers leave three holes, approximately 1 cm in diameter, in the bag after sampling. This causes powder to leak from the sampling port during storage and transportation, resulting in waste and potentially environmental pollution. Existing techniques typically seal the sampling port with simple methods like plastic bags and tape, but these methods are ineffective and require multiple personnel, resulting in a waste of manpower. Utility Model Content

[0003] The purpose of the utility model is to overcome the problem in the prior art that the sampling port is difficult to seal, and to provide a self-sealing structure and a dry powder sampler auxiliary device.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a self-sealing structure on the one hand, which includes a supporting part and a stop part. The stop part is arranged on the supporting part so that it can be supported by the supporting part and seal the sampling port of the sample bag, wherein the stop part includes a plurality of baffles, and the plurality of baffles contact each other in a natural state to close the sampling port, and can be separated from each other by the sampler to allow the sampler to be inserted into the sampling port through the stop part for sampling.

[0005] Preferably, the supporting portion is annular, and the stopping portion is circular and is arranged in the central area of ​​the supporting portion.

[0006] Preferably, the stopping portion is a rubber sheet and includes a plurality of stopping pieces evenly cut outward from the center.

[0007] Preferably, the support portion is an iron ring, and the support portion and the stop portion are connected by sealant.

[0008] Preferably, the blocking piece is elastic, so that when the sampler is taken out of the sampling port and leaves the blocking piece, the plurality of blocking pieces are elastically reset to contact each other and close the sampling port.

[0009] Preferably, a connector for connecting to the sample bag is provided on one side surface of the support portion, and the connector can pass through and be fixed to the sample bag.

[0010] Preferably, the support portion includes a plurality of the connecting members, and the plurality of connecting members are arranged on a side surface of the support portion at intervals.

[0011] Preferably, the supporting portion includes at least three connecting members.

[0012] Preferably, the connecting element has a barb.

[0013] On the other hand, the present invention provides a dry powder sampler auxiliary device, which includes the above-mentioned self-sealing structure.

[0014] Through the above technical solution, when the sampler is taking samples, the blocking pieces are separated from each other, so that the sampler can be inserted into the sampling port through the stop part for sampling. After the sampling is completed, the stop part can block the sampling port, with good sealing effect and low cost. When the staff is taking samples, the operation is simple and the sample can be reused.

[0015] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the self-sealing structure of the utility model.

[0017] Description of Reference Numerals

[0018] 10-support part, 20-stop part, 21-blocking piece, 30-connecting piece. DETAILED DESCRIPTION

[0019] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0020] The present invention provides a self-sealing structure. Figure 1 As shown, the self-sealing structure includes a supporting portion 10 and a stopping portion 20, wherein the stopping portion 20 is arranged on the supporting portion 10 so as to be supported by the supporting portion 10 and sealed at the sampling port of the sample bag, wherein the stopping portion 20 includes a plurality of blocking pieces 21, and the plurality of blocking pieces 21 are in contact with each other in a natural state so as to be able to close the sampling port, and can be separated from each other by the sampler to allow the sampler to be inserted into the sampling port through the stopping portion 20 for sampling.

[0021] Before sampling the sample bag, the self-sealing structure is set at the position on the surface of the sample bag where sampling is to be performed. At this time, the multiple baffles 21 of the stopper 20 are in contact with each other in a natural state to form a closed state. When sampling the sample bag through the sampler, the sampler penetrates the sample bag through the stopper 20. The multiple baffles 21 are separated from each other under the action of the sampler. The sampler penetrates the sample bag to form a sampling port and samples the sample, such as dry powder, in the sample bag. After sampling is completed, the sampler is withdrawn from the sampling port. The multiple baffles 21 return to a natural state of contacting and closing each other after the external force is removed. The stopper 20 seals the sampling port to prevent the dry powder in the sample bag from leaking out of the sampling port. The self-sealing structure has a good sealing effect and low cost. It is easy for staff to operate when sampling, and the sample can be reused.

[0022] As can be seen from the above, in the present invention, the sampling port can be a perforation formed in the sample bag when the sampler is inserted into the sample bag, rather than being a built-in feature of the sample bag. Alternatively, in other embodiments, a built-in sampling port can be formed in the sample bag, which is sealed by the self-sealing structure of the present invention to prevent the sample from leaking through the sampling port. In this case, the self-sealing structure constitutes a part of the sample bag.

[0023] In one embodiment of the present invention, the support portion 10 is annular, and the stop portion 20 is circular and disposed in the center of the support portion 10. Specifically, the annular support portion 10 supports the circular stop portion 20, allowing the multiple stoppers 21 of the stop portion 20 to naturally contact each other and form a closed state. When the sampler acts on the stop portion 20, the support portion 10 provides uniform support for the stop portion 20, causing the multiple stoppers 21 to separate from each other.

[0024] Furthermore, the stopper 20 can be composed of a plurality of baffles 21 made of any appropriate material. Preferably, the stopper 20 is a rubber sheet and includes a plurality of baffles 21 evenly cut from the center outward. The rubber sheet has an elastic recovery function. When the sampler acts on the center of the stopper 20, the plurality of baffles 21 separate from each other. When the external force of the stopper 20 is removed, the plurality of baffles 21 return to their natural state of contact and closure. The elastic rubber sheets have a good sealing effect after contacting each other, allowing the stopper 20 to return to a sealed state and effectively sealing the sampling port.

[0025] In order to provide more stable support for the stopper 20, the support part can be made of any appropriate material, such as a plastic ring, a metal ring, etc. Preferably, the support part 10 is an iron ring, and the support part 10 and the stopper 20 are connected by a sealant.

[0026] In one embodiment of the present invention, the baffles 21 are elastic so that when the sampler is removed from the sampling port and leaves the baffles 21, the multiple baffles 21 elastically return to contact with each other and seal the sampling port. For example, the baffles 21 can be provided with springs that allow the baffles 21 to return to contact with each other and seal the sampling port, or the baffles 21 can be made of a highly elastic fiber material.

[0027] In order to enable the self-sealing structure to be fixed to the surface of the sample bag, a connector 30 for connecting to the sample bag is provided on one side surface of the support portion 10 . The connector 30 can pass through and be fixed to the sample bag.

[0028] Specifically, in order to ensure the stability of the connection between the support portion 10 and the sample bag, the support portion 10 includes a plurality of connectors 30 , and the plurality of connectors 30 are arranged on one side surface of the support portion 10 at intervals.

[0029] Preferably, the support portion 10 includes at least three connectors 30. When the sampler acts on the self-sealing structure, the at least three connectors 30 can provide a stable connection for the support portion 10 relative to the sample bag.

[0030] In one embodiment of the present invention, the connector 30 has a barb. By inserting the barb into the surface of the sample bag, the self-sealing structure is fixed to the surface of the sample bag and is not easily dislodged during storage and transportation, causing the dry powder to leak from the sampling port.

[0031] Another aspect of the present invention provides a dry powder sampler auxiliary device, which includes the aforementioned self-sealing structure. Specifically, the dry powder sampler auxiliary device can seal the sampling port after the dry powder sampler has sampled the sample bag, preventing the dry powder in the sample bag from leaking out of the sampling port.

[0032] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0033] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0034] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A self-sealing structure, characterized in that: The self-sealing structure comprises a supporting portion (10) and a stopping portion (20), wherein the stopping portion (20) is arranged on the supporting portion (10) so as to be supported by the supporting portion (10) and sealed at the sampling port of the sample bag, wherein the stopping portion (20) comprises a plurality of blocking pieces (21), wherein the plurality of blocking pieces (21) contact each other in a natural state so as to be able to close the sampling port, and can be acted upon by a sampler to be separated from each other so as to allow the sampler to be inserted into the sampling port via the stopping portion (20) for sampling.

2. The self-sealing structure according to claim 1, characterized in that: The supporting portion (10) is annular, and the stopping portion (20) is circular and is arranged in the central area of ​​the supporting portion (10).

3. The self-sealing structure according to claim 2, characterized in that: The stopper (20) is a rubber sheet and comprises a plurality of stoppers (21) formed by evenly cutting from the center outward.

4. The self-sealing structure according to claim 3, characterized in that: The support portion (10) is an iron ring, and the support portion (10) and the stop portion (20) are connected via a sealant.

5. The self-sealing structure according to claim 1, characterized in that: The baffle (21) is elastic, so that when the sampler is taken out of the sampling port and leaves the baffle (21), the plurality of baffles (21) are elastically reset to contact each other and close the sampling port.

6. The self-sealing structure according to any one of claims 1 to 5, characterized in that: A connecting piece (30) for connecting to the sample bag is provided on one side surface of the supporting portion (10), and the connecting piece (30) can pass through and be fixed to the sample bag.

7. The self-sealing structure according to claim 6, characterized in that: The support portion (10) comprises a plurality of connecting members (30), and the plurality of connecting members (30) are arranged at intervals on a surface of one side of the support portion (10).

8. The self-sealing structure according to claim 7, characterized in that: The supporting portion (10) includes at least three connecting members (30).

9. The self-sealing structure according to claim 6, characterized in that: The connecting piece (30) has a barb.

10. A dry powder sampler auxiliary device, characterized in that: The dry powder sampler auxiliary device comprises the self-sealing structure according to any one of claims 1-9.

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