Self-suction type coal mine environment gas sampler

Abstract

The utility model relates to coal mine environment gas sampler technical field discloses a kind of self-suction coal mine environment gas samplers, including shell, the outside of shell is fixedly connected with connecting mechanism, the outside sliding connection of connecting mechanism has sampling head, the outside of shell is fixedly connected with reset mechanism, connecting mechanism includes fixed ring, multiple clamping grooves are arranged in the inside of fixed ring, the outside sliding connection of sampling head is in the inside of fixed ring, the inside fixed connection of sampling head has extrusion ring, the inside fixed connection of fixed ring has sealing shell, the outside fixed connection of sampling head has multiple limiting blocks. In the utility model, the effect that sampling head can be sealed butt joint quickly without tool, effectively improve the response efficiency and operation convenience under emergency scene, reduce the operation threshold and security risk in complex environment.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mine environmental gas samplers, and in particular to a self-priming coal mine environmental gas sampler. Background Technology

[0002] Coal mines are important locations and facilities that provide coal resources. The coal they produce has a wide range of uses in energy supply, industrial production, and other fields. It can ensure energy security, promote economic development, support industrial construction, and has cost advantages. Despite its environmental impact, it still plays an irreplaceable role. In special environments such as coal mines, environmental gas samplers accurately collect gas samples to provide data support for safety monitoring, risk warning, environmental assessment, and emergency response. They are an important tool for ensuring personnel safety and production compliance.

[0003] A search revealed Chinese Patent Publication No. CN223122617U, which discloses a gas sampler for coal mines. The sampler includes a housing with a pagoda-shaped interface fixedly connected to one outer wall. This pagoda interface includes an outlet and an inlet. An air pump is fixedly connected to the inner bottom wall of the housing. A T-junction connects the inlet and outlet of the air pump, with one end of the T-junction connected to a pressure sensor A fixedly connected to the inner wall of the housing. The air pump includes a pump head, a motor, a cylinder, a piston, and a transmission crankshaft. Valves are installed on the outer walls of the inlet and outlet of the air pump. The motor is connected to a battery via wires. This invention provides one-button operation for rapid, accurate, and convenient sampling of coal mine gases, along with real-time monitoring functions. It not only improves gas sampling efficiency but also avoids the influence of human factors on the sampling results, ensuring the accuracy of the measurement results and providing stronger technical support for safe coal mine production.

[0004] The aforementioned patent specification mentions that "by incorporating a structure such as an air pump, during operation, the motor drives the cylinder piston to move, creating negative pressure inside the cylinder, thereby drawing external gas into it through the air inlet. When the piston moves in the reverse direction, the air inlet valve closes and the air outlet valve opens, allowing the gas to be compressed and pushed out into the gas bag for collection. This one-button operation enables rapid, accurate, and convenient sampling of coal mine gas, while also providing real-time monitoring functions. This not only improves gas sampling efficiency but also avoids the influence of human factors on the sampling results, ensuring the accuracy of the measurement results and providing stronger technical support for safe coal mine production." While the aforementioned patent can achieve rapid, accurate, and convenient sampling of coal mine gas, it cannot disassemble and reassemble the sampling head when problems arise. Therefore, a self-priming coal mine environmental gas sampler is proposed to solve this problem. Utility Model Content

[0005] The purpose of this invention is to provide a self-priming coal mine environmental gas sampler, which aims to solve the problem in the prior art that it is impossible to quickly seal and connect the sampling head without tools.

[0006] To achieve the above objectives, this utility model provides a self-priming coal mine environmental gas sampler, including a shell, a connecting mechanism fixedly connected to the outer side of the shell, a sampling head slidably connected to the outer side of the connecting mechanism, and a reset mechanism fixedly connected to the outer side of the shell.

[0007] The connecting mechanism includes a fixing ring with multiple slots inside. The fixing ring is slidably connected to the outside of the sampling head. A compression ring is fixedly connected to the inside of the sampling head. A sealing shell is fixedly connected to the inside of the fixing ring. Multiple limiting blocks are fixedly connected to the outside of the sampling head. A spring is slidably connected to the inside of the sealing shell. A sampling assembly is slidably connected to the inside of the outer shell.

[0008] The sampling component includes a sliding rod, the outer side of which is slidably connected to the inside of the housing, and one end of which is fixedly connected to a squeezing disc;

[0009] The reset mechanism includes a limiting disc, the outer side of which is fixedly connected to the outer side of the housing, a limiting rod is slidably connected to the inside of the limiting disc, a connecting block is fixedly connected to the other end of the limiting rod, a sliding disc is fixedly connected to the outer side of the connecting block, and a spring is fixedly connected to the inner side of the sliding disc.

[0010] Wherein, one end of the second spring is fixedly connected to the outside of the outer shell, and the outside of the extrusion disc is slidably connected to the inside of the outer shell;

[0011] The sealing shell has multiple springs fixedly connected inside, and a sealing ring is fixedly connected to one end of each spring.

[0012] The outer side of the compression ring is slidably connected to the inside of the first spring, and the outer side of the compression ring is slidably connected to the outer side of the sealing ring.

[0013] The inner part of the fixing ring is slidably connected to the outer part of the compression ring, and the outer part of the limiting block is slidably connected to the inner part of the slot.

[0014] The outer side of the sampling head is slidably connected to the outer side of the sealing shell, and the outer side of the compression ring is slidably connected to the inside of the fixing ring.

[0015] 1. In this utility model, a fixing ring is used in conjunction with a slot, the slot is used in conjunction with a limiting block, the limiting block is used in conjunction with a sampling head, the sampling head is used in conjunction with a squeezing ring, the squeezing ring is used in conjunction with a sealing ring, the sealing ring is used in conjunction with a spring, and the spring is used in conjunction with the sealing ring. This achieves the effect of quickly sealing and connecting the sampling head without tools, effectively improving the response efficiency and ease of operation in emergency scenarios, and reducing the operation threshold and safety risks in complex environments.

[0016] 2. In this utility model, the sliding disc works in conjunction with the spring and the connecting block, the connecting block works in conjunction with the limiting rod, and the limiting rod works in conjunction with the limiting disc, thereby achieving the effect of assisting in the reset of the sliding disc, enhancing the reset consistency, ensuring sampling accuracy, improving operational safety, reducing accidental risks, fully adapting to the special scenario requirements of coal mine gas sampling, and providing a reliable guarantee for efficient and accurate sampling. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional schematic diagram of a self-priming coal mine environmental gas sampler proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the extrusion disc structure of a self-priming coal mine environmental gas sampler proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0022] 1. Outer shell; 2. Sampling assembly; 21. Sliding rod; 22. Squeezing disc; 3. Connecting mechanism; 31. Fixing ring; 32. Slot; 33. Sealing shell; 34. Spring 1; 35. Sealing ring; 36. Squeezing ring; 37. Limiting block; 4. Sampling head; 5. Reset mechanism; 51. Sliding disc; 52. Spring 2; 53. Connecting block; 54. Limiting rod; 55. Limiting disc. Detailed Implementation

[0023] The first embodiment of this application is as follows:

[0024] 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.

[0025] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a self-priming coal mine environmental gas sampler, including a housing 1. The housing 1 provides a stable housing space for the entire sampler, protecting the internal components from the complex environment of the coal mine. A connecting mechanism 3 is fixedly connected to the outer side of the housing 1. The connecting mechanism 3 is used to achieve a stable connection and quick disassembly between the sampling head 4 and the housing 1, ensuring the sealing of the sampling process. The sampling head 4 is slidably connected to the outer side of the connecting mechanism 3. The sampling head 4 is a component that directly contacts the gas inside the coal mine and can accurately collect the target gas. A reset mechanism 5 is fixedly connected to the outer side of the housing 1. The reset mechanism 5 can realize the gas discharge operation after sampling through its own elastic reset function.

[0026] The connecting mechanism 3 includes a fixing ring 31, which provides an installation base for the parts of the connecting mechanism 3 and can position the sampling head 4 during installation. The fixing ring 31 has multiple slots 32 inside, which cooperate with the limiting block 37 to firmly fix the sampling head 4 on the fixing ring 31 and prevent the sampling head 4 from falling off during sampling. The inside of the fixing ring 31 is slidably connected to the outside of the sampling head 4. This connection method facilitates the installation and removal of the sampling head 4. The inside of the sampling head 4 is fixedly connected to a compression ring 36. The compression ring 36 can compress the sealing ring 35 when the sampling head 4 is installed, enhancing the sealing between the sampling head 4 and the fixing ring 31. The inside of the fixing ring 31 is fixedly connected to a sealing shell 33. The sealing shell 33 can protect the internal spring 34 and sealing ring 35, and at the same time provide them with a stable installation space. The outside of the sampling head 4 is slidably connected to the outside of the sealing shell 33 to ensure that the sampling head 4 can slide smoothly during installation and use.

[0027] Multiple limiting blocks 37 are fixedly connected to the outer side of the sampling head 4. These limiting blocks 37 cooperate with the slot 32 and are key components for fixing and disassembling the sampling head 4. The outer side of the limiting blocks 37 is slidably connected inside the slot 32. By sliding and rotating the limiting blocks 37 within the slot 32, the installation, fixing, and disassembly of the sampling head 4 can be completed. A spring 34 is slidably connected inside the sealing shell 33. The spring 34 provides a restoring force after the sampling head 4 is installed, making the connection between the limiting blocks 37 and the slot 32 tighter. The internal fixed connection has multiple springs 34. The multiple springs 34 work together to enhance the elastic force on the sealing ring 35 and improve the sealing effect. The outer side of the compression ring 36 is slidably connected to the inside of the springs 34. This structure allows the compression ring 36 to compress the springs 34 more stably when compressing the sealing ring 35. One end of the multiple springs 34 is fixedly connected to the sealing ring 35. The sealing ring 35 deforms under the compression of the compression ring 36, which can fill the gap between the sampling head 4 and the fixed ring 31 and ensure the airtightness during sampling.

[0028] The outer side of the compression ring 36 is slidably connected to the outer side of the sealing ring 35, which facilitates the compression operation of the compression ring 36 on the sealing ring 35. The inner side of the fixing ring 31 is slidably connected to the outer side of the compression ring 36, ensuring that the compression ring 36 can slide smoothly and exert a compression effect during the installation of the sampling head 4. The outer side of the compression ring 36 is slidably connected to the inner side of the fixing ring 31, which further ensures the stability of the sliding of the compression ring 36. The sampling component 2 is slidably connected inside the outer shell 1. The sampling component 2 can slide inside the outer shell 1 to realize the absorption and discharge of coal mine gas.

[0029] The sampling assembly 2 includes a sliding rod 21, which is a key component connecting the sliding disk 51 and the squeezing disk 22. It can transmit the tension of the sliding disk 51 to the squeezing disk 22. The outer side of the sliding rod 21 is slidably connected to the inside of the outer shell 1, so that the sliding rod 21 can slide smoothly inside the outer shell 1 and ensure the stability of power transmission. One end of the sliding rod 21 is fixedly connected to the squeezing disk 22. The squeezing disk 22 can absorb and squeeze out the gas inside the outer shell 1 by its own movement. The outer side of the squeezing disk 22 is slidably connected to the inside of the outer shell 1, so that the squeezing disk 22 can slide tightly against the inner wall of the outer shell 1 and avoid gas leakage affecting the sampling effect.

[0030] Reference Figures 1 to 3The reset mechanism 5 includes a limiting disc 55, which guides and restricts the sliding of the limiting rod 54, preventing the limiting rod 54 from deviating from its direction during sliding. The outer side of the limiting disc 55 is fixedly connected to the outer side of the housing 1, allowing the limiting disc 55 to be stably mounted on the housing 1. The limiting rod 54 is slidably connected inside the limiting disc 55, which drives the sliding disc 51 to slide smoothly and cooperates with the limiting disc 55 to ensure the sliding direction of the sliding disc 51. The other end of the limiting rod 54 is fixedly connected to a connecting block 53, which can hold the limiting rod... 54 is connected to the sliding disk 51 to realize the transmission of force. The sliding disk 51 is fixedly connected to the outside of the connecting block 53. The sliding disk 51 is the part operated by the operator. By pulling and releasing the sliding disk 51, the action of the sampling component 2 can be controlled. The inner side of the sliding disk 51 is fixedly connected to the second spring 52. The second spring 52 stores elastic potential energy when the sliding disk 51 is pulled. After the sliding disk 51 is released, it can provide a reset force. One end of the second spring 52 is fixedly connected to the outside of the outer shell 1 so that the second spring 52 can be stably installed and ensure the normal realization of its reset function.

[0031] Working principle: When the staff needs to sample the gas in the coal mine, they can place the sampling head 4 against the inside of the coal mine and then pull the sliding plate 51 outward, so that the sliding plate 51 pulls the sliding rod 21 outward together. The other end of the sliding rod 21 is connected to the squeezing plate 22. The squeezing plate 22 will then absorb the air inside the coal mine. After the sampling is completed, the outlet of the sampling head 4 can be aligned with the inside of the detector. Then the sliding plate 51 can be released. At this time, the sliding plate 51 will be pulled back to its original position by the reset pull of the spring 2 52, so that the squeezing plate 22 squeezes out the gas inside the outer shell 1.

[0032] When the sampling head 4 needs to be replaced, it can be rotated to drive multiple limiting blocks 37, causing the limiting blocks 37 to rotate out of the slot 32. After the limiting blocks 37 are rotated out of the corner of the slot 32, the sampling head 4 can be taken out outward. When the sampling head 4 needs to be installed back, the limiting blocks 37 can be aligned with the inside of the slot 32, and the limiting blocks 37 can be slid into the slot 32 before the sampling head 4 is rotated again, causing the limiting blocks 37 to rotate back to the corner of the slot 32. After the sampling head 4 slides into the fixed ring 31, it will compress the sealing ring 35 through the compression ring 36, causing the sealing ring 35 to compress multiple springs 34 inward. After the sampling head 4 is installed, it can be released, and the springs 34 will release their rebound force outward, causing the sealing ring 35 to push the compression ring 36 outward. This makes the limiting blocks 37 and the slot 32 more tightly connected.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A self-priming coal mine environmental gas sampler, comprising a housing, characterized in that: A connecting mechanism is fixedly connected to the outer side of the outer shell, a sampling head is slidably connected to the outer side of the connecting mechanism, and a reset mechanism is fixedly connected to the outer side of the outer shell. The connecting mechanism includes a fixing ring with multiple slots inside. The fixing ring is slidably connected to the outside of the sampling head. A compression ring is fixedly connected to the inside of the sampling head. A sealing shell is fixedly connected to the inside of the fixing ring. Multiple limiting blocks are fixedly connected to the outside of the sampling head. A spring is slidably connected to the inside of the sealing shell. A sampling assembly is slidably connected to the inside of the outer shell.

2. The self-priming coal mine environmental gas sampler according to claim 1, characterized in that: The sampling component includes a sliding rod, the outer side of which is slidably connected to the inside of the housing, and one end of which is fixedly connected to a squeezing disc.

3. A self-priming coal mine environmental gas sampler according to claim 2, characterized in that: The reset mechanism includes a limiting disc, the outer side of which is fixedly connected to the outer side of the housing, a limiting rod is slidably connected to the inside of the limiting disc, a connecting block is fixedly connected to the other end of the limiting rod, a sliding disc is fixedly connected to the outer side of the connecting block, and a spring is fixedly connected to the inner side of the sliding disc.

4. A self-priming coal mine environmental gas sampler according to claim 3, characterized in that: One end of the second spring is fixedly connected to the outside of the outer shell, and the outside of the extrusion disc is slidably connected to the inside of the outer shell.

5. A self-priming coal mine environmental gas sampler according to claim 1, characterized in that: The sealing shell has multiple springs fixedly connected inside, and a sealing ring is fixedly connected to one end of each spring.

6. A self-priming coal mine environmental gas sampler according to claim 5, characterized in that: The outer side of the compression ring is slidably connected to the inside of the spring, and the outer side of the compression ring is slidably connected to the outside of the sealing ring.

7. A self-priming coal mine environmental gas sampler according to claim 1, characterized in that: The inner part of the fixing ring is slidably connected to the outer part of the compression ring, and the outer part of the limiting block is slidably connected to the inner part of the slot.

8. A self-priming coal mine environmental gas sampler according to claim 1, characterized in that: The outer side of the sampling head is slidably connected to the outer side of the sealing shell, and the outer side of the compression ring is slidably connected to the inside of the fixing ring.

Images