A double-layer coal sample storage container

Abstract

This utility model relates to the technical field of coal sample storage containers, and more particularly to a double-layer coal sample storage container. The double-layer coal sample storage container includes a container body and a lid. A stainless steel inner liner is fixedly fitted inside the container body. An external thread is provided at the outer opening of the container body. An annular elastic airbag is installed in an annular groove on the outer wall above the external thread. An abutment edge is provided on the container body below the external thread. An annular cavity structure is formed within the abutment edge, and a piston ring is installed within the annular cavity structure. The annular elastic airbag of the double-layer coal sample storage container provided by this utility model can expand and quickly fill the inner abutment part in the inner wall of the lid, greatly improving the stability and sealing of the connection between the lid and the container body. Furthermore, the expanding annular elastic airbag is an elastic structure, eliminating the potential for connection failure between the container body and the lid due to container vibration.

Description

Technical Field

[0001] This utility model relates to the field of coal sample storage technology, and in particular to a double-layer coal sample storage container. Background Technology

[0002] In the field of coal quality testing, the storage quality of coal samples directly affects the accuracy of test results. Therefore, coal sample storage containers must meet requirements such as reliable sealing, pollution prevention, vibration resistance, easy transportation, and convenient management. Currently, traditional coal sample storage containers are mostly made of a single material (such as all-plastic or all-metal), which has significant limitations: all-plastic containers, while lightweight, lack strength and are prone to deformation due to impacts over long periods, leading to seal failure; all-metal containers, while strong, are heavy, making them inconvenient for manual handling and long-distance transportation. Furthermore, in terms of sealing performance, traditional storage containers often rely on threads to directly connect the container body and lid. The threaded clearance is easily increased by transportation vibrations, allowing external moisture and dust to enter and contaminate the coal sample. Especially during long-distance transportation or frequent handling, the probability of the lid loosening is high, seriously affecting the originality of the coal sample.

[0003] Therefore, it is necessary to provide a new double-layer coal sample storage container to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a double-layer coal sample storage container.

[0005] The double-layer coal sample storage bucket provided by this utility model includes a bucket body and a bucket lid. A stainless steel inner liner is fixedly fitted inside the bucket body, and an external thread is provided at the outer bucket opening of the bucket body. An annular elastic airbag is installed in an annular groove opened on the outer bucket wall above the external thread, and an abutting edge is provided on the bucket body below the external thread.

[0006] The abutting edge is provided with an annular cavity structure, and the annular cavity structure is interconnected with the annular elastic airbag. The annular cavity structure is provided with a piston ring.

[0007] The barrel body is equipped with a stacked miniature air pressure sensor and a voice alarm. The miniature air pressure sensor detects the air pressure of the annular elastic airbag, and the miniature air pressure sensor is electrically connected to the voice alarm through a signal processing module.

[0008] The stainless steel inner liner has a frustum-shaped structure that is wider at the top and narrower at the bottom.

[0009] Preferably, a partition ring is fixedly fitted inside the annular cavity structure, and the partition ring divides the annular cavity structure into an inner and outer annular gas storage chamber and an exhaust chamber.

[0010] Preferably, the piston ring is slidably installed in the annular gas storage chamber, and a connecting rod is fixedly installed on the upper ring surface of the piston ring at intervals. The connecting rod passes through a sliding hole opened on the abutment edge, and a pressing ring is fixedly mounted on the top of the connecting rod.

[0011] Preferably, the exhaust chamber is connected to the intake branch pipe on the annular elastic airbag through an airflow channel provided inside the barrel.

[0012] Preferably, an air guide tube is fixedly installed on the upper surface of the annular elastic airbag, and the air guide tube is connected to the detection silicon film in the miniature air pressure sensor.

[0013] Preferably, the inner ring wall of the bucket lid is provided with an internal thread portion, and the inner ring wall above the internal thread portion is provided with an inner abutment portion.

[0014] Preferably, the bottom of the barrel is provided with a fitting ring groove, and the upper surface of the barrel lid is fixedly fitted with a protruding ring that matches the fitting ring groove.

[0015] Preferably, the stainless steel inner liner has a frustum-shaped structure that is wider at the top and narrower at the bottom.

[0016] Compared with related technologies, the double-layer coal sample storage tank provided by this utility model has the following beneficial effects:

[0017] 1. This utility model uses a piston ring to force the gas in the annular gas storage chamber to the exhaust chamber, and then the gas from the exhaust chamber enters the annular elastic airbag through the air guide channel. Therefore, the annular elastic airbag can expand and quickly fill the inner part of the inner wall of the bucket lid, which greatly improves the stability and sealing of the connection between the bucket lid and the bucket body. In addition, the expanded annular elastic airbag is an elastic structure, which eliminates the hidden danger of the connection between the bucket body and the bucket lid failing due to the vibration of the bucket body.

[0018] 2. When the annular elastic airbag expands rapidly, some of the gas acts on the detection silicon film in the miniature pressure sensor through the air guide tube. If the miniature pressure sensor shows unstable pressure or the pressure value is lower than the predetermined range, it indicates that the annular elastic airbag is damaged. Therefore, the voice alarm will issue a rapid warning, prompting the user to have it quickly maintained by a professional, thereby greatly improving safety. Attached Figure Description

[0019] Figure 1 A schematic diagram of a preferred embodiment of the double-layer coal sample storage tank provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the structural design of the barrel.

[0021] Figure 3 for Figure 2 A magnified structural diagram of point A is shown below;

[0022] Figure 4 for Figure 1 The diagram shows the structure of the piston ring.

[0023] The following are the labels in the diagram: 1. Barrel body; 1a. Fitting ring groove; 2. Stainless steel inner liner; 3. External threaded part; 4. Annular elastic airbag; 5. Abutting edge; 5a. Sliding hole; 51. Spacer ring; 6. Annular cavity structure; 6a. Annular air storage chamber; 6b. Exhaust chamber; 6c. Air guide channel; 7. Piston ring; 71. Connecting rod; 72. Pressing ring; 8. Miniature air pressure sensor and voice alarm; 81. Air guide pipe; 9. Barrel lid; 91. Internal threaded part; 92. Inner abutment part; 93. Raised ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 4 This utility model provides a double-layer coal sample storage tank, which includes a tank body 1 and a tank cover 9.

[0027] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The barrel body 1 is fitted with a stainless steel inner liner 2, which has a truncated cone structure that is wider at the top and narrower at the bottom. The bottom of the barrel body 1 is provided with a fitting annular groove 1a, and the upper surface of the barrel lid 9 is fitted with a protruding ring 93 that matches the fitting annular groove 1a.

[0028] It should be noted that: In this application, the barrel body 1 is made of high-density polyethylene material, while the stainless steel inner liner 2 inside the barrel body 1 improves the strength of the coal sample storage barrel, making the interior easy to clean and disinfect, resistant to high temperature (if drying is required), and corrosion resistant. Combined with the high-density polyethylene material on the outside, the overall weight is greatly reduced, making it easy to handle manually and transport over long distances. At the same time, the plastic outer shell reduces material costs, and stainless steel is only used for the key inner layer, balancing performance and cost.

[0029] When coal sample storage containers are stacked, the fitting groove 1a at the bottom of the container 1 can be inserted into the protruding ring 93 on the lower container cover 9, thus improving the stability of the stacked coal sample storage containers.

[0030] In the embodiments of this utility model, please refer to Figures 1 to 4The inner ring wall of the lid 9 is provided with an internal thread 91, and the inner ring wall above the internal thread 91 is provided with an inner abutment 92. The outer barrel opening of the barrel body 1 is provided with an external thread 3. An annular elastic airbag 4 is installed in the annular groove opened on the outer barrel wall above the external thread 3, and an abutment edge 5 is provided on the barrel body 1 below the external thread 3.

[0031] An annular cavity structure 6 is provided inside the abutment edge 5, and the annular cavity structure 6 is interconnected with the annular elastic airbag 4. A piston ring 7 is provided inside the annular cavity structure 6. Specifically, a partition ring 51 is fixedly fitted inside the annular cavity structure 6. The partition ring 51 divides the annular cavity structure 6 into an annular air storage chamber 6a and an exhaust chamber 6b, which are arranged inside and outside. The piston ring 7 is slidably installed in the annular air storage chamber 6a, and a connecting rod 71 is fixedly installed at intervals on the upper annular surface of the piston ring 7. The connecting rod 71 passes through the sliding hole 5a opened in the abutment edge 5. A pressing ring 72 is fixedly mounted on the top of the connecting rod 71. The exhaust chamber 6b is interconnected with the air intake branch pipe on the annular elastic airbag 4 through the air guide channel 6c provided inside the barrel 1.

[0032] It should be noted that when closing the lid 9, the lid 9 is placed on the opening of the barrel 1, and the threaded part 91 is threaded to the external threaded part 3. As the lid 9 is screwed in, the bottom of the lid 9 presses against the piston ring 72. Therefore, the piston ring 7 presses the gas in the annular gas storage chamber 6a into the exhaust chamber 6b, and from the exhaust chamber 6b, it enters the annular elastic airbag 4 through the air guide channel 6c. Therefore, the annular elastic airbag 4 expands and quickly fills the inner abutment part 92 in the inner ring wall of the lid 9, which greatly improves the stability and sealing of the connection between the lid 9 and the barrel 1. Furthermore, the expanded annular elastic airbag 4 is an elastic structure, which eliminates the hidden danger of the connection between the barrel 1 and the lid 9 failing due to the vibration of the barrel 1.

[0033] In addition, the inner diameter of the exhaust chamber 6b is much smaller than the inner diameter of the annular gas storage chamber 6a.

[0034] It is worth noting that the annular elastic airbag 4 is made of fluororubber material that is resistant to aging and chemical corrosion, and the surface of the annular elastic airbag 4 is coated with polytetrafluoroethylene to improve its anti-aging and anti-corrosion capabilities. The inner ring of the annular elastic airbag 4 is fixedly fitted into the annular groove opened in the outer wall of the barrel 1.

[0035] In the embodiments of this utility model, please refer to Figures 1 to 4 A miniature air pressure sensor and a voice alarm 8 are installed on the barrel mouth end face of the barrel body 1. The air pressure of the annular elastic airbag 4 is detected by the miniature air pressure sensor, and the miniature air pressure sensor is electrically connected to the voice alarm. An air guide tube 81 is fixedly installed on the upper surface of the annular elastic airbag 4, and the air guide tube 81 is connected to the detection silicon film in the miniature air pressure sensor.

[0036] It should be noted that when the annular elastic airbag 4 expands rapidly, some of the gas acts on the detection silicon film in the miniature pressure sensor through the air guide tube 81. If the miniature pressure sensor experiences pressure instability or the pressure value is lower than the predetermined range, it indicates that the annular elastic airbag 4 is damaged. Therefore, the voice alarm will issue a rapid warning, prompting the user to have it quickly maintained by a professional, thereby greatly improving safety.

[0037] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A double-layer coal sample storage container, comprising a container body (1) and a container lid (9), characterized in that, The barrel (1) is fitted with a stainless steel inner liner (2), and the barrel (1) is provided with an external thread (3) at the outer barrel opening. An annular elastic airbag (4) is installed in the annular groove opened on the outer barrel wall above the external thread (3), and an abutting edge (5) is provided on the barrel (1) below the external thread (3). The abutting edge (5) is provided with an annular cavity structure (6), and the annular cavity structure (6) is connected to the annular elastic airbag (4). The annular cavity structure (6) is provided with a piston ring (7). The barrel body (1) is equipped with a stacked miniature air pressure sensor and a voice alarm (8) at the barrel mouth end face, and the miniature air pressure sensor is electrically connected to the voice alarm (8) through a signal processing module. The stainless steel inner liner (2) has a frustum structure that is wider at the top and narrower at the bottom.

2. The double-layer coal sample storage container according to claim 1, characterized in that, The annular cavity structure (6) is fixedly fitted with a partition ring (51), which divides the annular cavity structure (6) into an annular gas storage chamber (6a) and an exhaust chamber (6b) arranged inside and outside.

3. The double-layer coal sample storage container according to claim 2, characterized in that, The piston ring (7) is slidably installed in the annular gas storage chamber (6a), and the upper ring surface of the piston ring (7) is fixedly installed with a connecting rod (71) at intervals. The connecting rod (71) passes through the sliding hole (5a) opened in the abutment edge (5), and a pressing ring (72) is fixedly mounted on the top of the connecting rod (71).

4. The double-layer coal sample storage container according to claim 2, characterized in that, The exhaust chamber (6b) is connected to the air intake branch pipe on the annular elastic airbag (4) through the air guide channel (6c) provided inside the barrel (1).

5. The double-layer coal sample storage container according to claim 1, characterized in that, An air duct (81) is fixedly installed on the upper surface of the annular elastic airbag (4), and the air duct (81) is connected to the detection silicon film in the micro pressure sensor.

6. The double-layer coal sample storage container according to claim 1, characterized in that, The inner ring wall of the bucket lid (9) is provided with an internal thread (91), and the inner ring wall above the internal thread (91) is provided with an inner abutment (92).

7. The double-layer coal sample storage container according to claim 1, characterized in that, The bottom of the barrel (1) is provided with a fitting ring groove (1a), and the upper surface of the barrel cover (9) is fixedly fitted with a protruding ring (93) that matches the fitting ring groove (1a).

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