A waste gas sampling device
By introducing a sampling outer cylinder and structural components into the exhaust gas sampling device, and utilizing the cooperation of pistons and springs, the problem of exhaust gas leakage was solved, and the sealed storage and purity maintenance of exhaust gas were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHUNBANG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, during the waste gas sampling process, waste gas is prone to leakage from the replaceable sampling tube, which makes waste gas storage inconvenient and affects the purity of the sample.
The system employs structural components including a sampling outer cylinder, a replaceable sampling tube, a plug, a rubber pad, a spring, a piston, a soft pad, a cross block, a septum, and a pulling component. Through the pulling of the piston and the compression of the spring, the plug and the rubber pad are separated and sealed, preventing exhaust gas leakage and enhancing the sealing performance between the sampling tube and the outer cylinder.
It effectively prevents exhaust gas leakage, ensures the purity of exhaust gas, and facilitates storage and subsequent testing.
Smart Images
Figure CN224286467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas detection technology, and in particular to a waste gas sampling device. Background Technology
[0002] Waste gas refers to the general term for various pollutant gases emitted into the air during fuel combustion and production processes within a factory area. These include a variety of harmful substances such as carbon dioxide, sulfur dioxide, hydrogen sulfide, nitrogen oxides, carbon monoxide, sulfuric acid mist, lead, mercury, beryllium compounds, soot, and industrial dust. Typically, cleaning these devices after use is time-consuming, labor-intensive, and inconvenient due to disassembly and installation difficulties.
[0003] The prior art CN217180158U discloses a waste gas sampling device for industrial waste gas detection, including a replaceable sampling tube, a second connecting ring, a second annular groove, a protective outer cylinder, a protective inner cylinder, a first connecting ring, a first annular groove, a piston, a connecting rod, and a sampling storage chamber. The second connecting ring at the upper end of the replaceable sampling tube is aligned with the second annular groove. Rotating the replaceable sampling tube allows it to be threadedly connected to the protective outer cylinder via the second connecting ring. The first connecting ring at the lower end of the protective inner cylinder is embedded in the first annular groove. Rotating the protective inner cylinder achieves a threaded connection between the inner and outer cylinders. The piston and connecting rod are inserted into the industrial waste gas sampling storage chamber. After assembly, the device is ready for use. After sampling, industrial waste gas can be injected into the detection device for testing. Rotating the protective inner cylinder separates the inner and outer cylinders, allowing for cleaning of the inner cylinder. Rotating the replaceable sampling tube allows it to be removed for cleaning, facilitating cleaning.
[0004] During normal use, existing technologies often result in waste gas leakage from the replaceable sampling tube during sampling, making it inconvenient to store the waste gas and potentially affecting the purity of the sampled waste gas. Utility Model Content
[0005] The purpose of this invention is to provide a waste gas sampling device that solves the problem that in the prior art, waste gas is prone to leakage from the replaceable sampling tube during the sampling process, making it inconvenient to store the waste gas and easily affecting the purity of the sampled waste gas.
[0006] To achieve the above objectives, this utility model provides a waste gas sampling device, including a sampling outer cylinder and structural components. The structural components include a replaceable sampling tube, a plug, a rubber pad, a spring, a piston, a soft pad, a horizontal block, a septum, and a pulling member. The piston is slidably mounted on one side of the sampling outer cylinder. The replaceable sampling tube is threadedly connected to the sampling outer cylinder and located on the side of the sampling outer cylinder away from the piston. The rubber pad is sleeved on the side of the replaceable sampling tube away from the sampling outer cylinder. The plug is slidably connected to the sampling outer cylinder and located on the side of the sampling outer cylinder close to the rubber pad. The horizontal block is fixedly connected to the replaceable sampling tube and located on the side of the replaceable sampling tube away from the rubber pad. One end of the spring is connected to the horizontal block, and the other end of the spring is connected to the plug. The soft pad is sleeved on the side of the piston close to the sampling outer cylinder. The pulling member is connected to the plug and the piston. The septum is sleeved on the side of the piston away from the sampling outer cylinder.
[0007] The pulling member includes a vertical rod and an extension rod. The vertical rod is threadedly connected to the plug and slidably connected to the piston. The extension rod is slidably connected to the vertical rod and is located on the side of the vertical rod away from the piston.
[0008] The plug has an internal threaded hole for mounting, which is located on the side of the plug near the vertical rod and engages with the vertical rod.
[0009] The structural component further includes a sealing block and a block body. The block body is fixedly connected to the sampling outer cylinder and is located on the side of the sampling outer cylinder away from the replaceable sampling tube. The sealing block is sleeved on the side of the block body close to the sampling outer cylinder.
[0010] The structural component further includes an insulation layer and a mounting block. The insulation layer is detachably connected to the sampling outer cylinder. The mounting block is threadedly connected to the sampling outer cylinder and is located on the side of the sampling outer cylinder away from the replaceable sampling tube.
[0011] This utility model discloses a waste gas sampling device. The insulation layer is placed in the mounting cavity of the sampling outer cylinder. The block is rotated to install the insulation layer onto the sampling outer cylinder. The replaceable sampling tube is rotated to cooperate with the sampling outer cylinder, causing the sealing block to abut against the replaceable sampling tube and the sampling outer cylinder, improving the sealing between them. The replaceable sampling tube is then installed on the sampling outer cylinder. Pulling the piston moves the soft pad on the sampling outer cylinder, increasing the internal pressure and causing the blocking block to move upwards, separating from the rubber pad. The spring is compressed, allowing waste gas to enter the sampling outer cylinder. When the piston is stopped, the spring drives the blocking block to descend and abut against the rubber pad, preventing waste gas leakage from the replaceable sampling tube and facilitating waste gas storage, thus avoiding any impact on the purity of the sampled waste gas. Attached Figure Description
[0012] 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.
[0013] Figure 1 This is a schematic diagram of the overall structure of the waste gas sampling device according to the first embodiment of this utility model.
[0014] Figure 2 This is a structural schematic diagram of the blocking block and vertical rod of this utility model.
[0015] Figure 3 This is a schematic diagram of the replaceable sampling and cross block of this utility model.
[0016] In the diagram: 101-Sampling outer cylinder, 102-Replaceable sampling tube, 103-Block, 104-Rubber pad, 105-Spring, 106-Piston, 107-Soft pad, 108-Horizontal block, 109-September, 110-Sealing block, 111-Block body, 112-Insulation layer, 113-Mounting block, 114-Vertical rod, 115-Extension rod, 116-Installation internal thread hole. Detailed Implementation
[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0018] The first embodiment of this application is as follows:
[0019] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of the exhaust gas sampling device according to the first embodiment of this utility model. Figure 2 This is a structural schematic diagram of the blocking block and vertical rod of this utility model. Figure 3 This is a schematic diagram of the replaceable sampling tube and cross block of this utility model. This utility model provides a waste gas sampling device, including a sampling outer cylinder 101 and structural components. The structural components include a replaceable sampling tube 102, a plug 103, a rubber pad 104, a spring 105, a piston 106, a soft pad 107, a cross block 108, a diaphragm 109, a pulling component, a sealing block 110, a block 111, a heat insulation layer 112, and a mounting block 113. The pulling component includes a vertical rod 114 and an extension rod 115. The plug 103 has an internal threaded hole 116. The aforementioned solution solves the problem that in the prior art, waste gas easily leaks from the replaceable sampling tube 102 during sampling, making it inconvenient to store the waste gas and easily affecting the purity of the sampled waste gas. It can be understood that the aforementioned solution can be used in situations where waste gas easily leaks from the replaceable sampling tube 102 during sampling in the prior art.
[0020] In this specific embodiment, by rotating the replaceable sampling tube 102, the replaceable sampling tube 102 is installed on the sampling outer cylinder 101. Pulling the piston 106 moves the soft pad 107 on the sampling outer cylinder 101. After the internal pressure of the sampling outer cylinder 101 increases, it drives the block 103 to move upward and separate from the rubber pad 104. The spring 105 is compressed, and the waste gas enters the sampling outer cylinder 101. When the piston 106 is stopped being pulled, the spring 105 drives the block 103 to descend and abut against the rubber pad 104, preventing the waste gas from leaking from the replaceable sampling tube 102. This facilitates the storage of the waste gas and avoids affecting the purity of the sampled waste gas.
[0021] The piston 106 is slidably mounted on one side of the sampling outer cylinder 101. The replaceable sampling tube 102 is threadedly connected to the sampling outer cylinder 101 and is located on the side of the sampling outer cylinder 101 away from the piston 106. The rubber pad 104 is sleeved on the side of the replaceable sampling tube 102 away from the sampling outer cylinder 101. The plug 103 is slidably connected to the sampling outer cylinder 101 and is located on the side of the sampling outer cylinder 101 close to the rubber pad 104. The horizontal block 108 is fixedly connected to the replaceable sampling tube 102 and is located on the side of the replaceable sampling tube 102 away from the rubber pad 104. One end of the spring 105 is connected to the horizontal block 108. The other end of 105 is connected to the block 103. The soft pad 107 is sleeved on the side of the piston 106 near the sampling outer cylinder 101. The pulling member is connected to the block 103 and the piston 106. The septum 109 is sleeved on the side of the piston 106 away from the sampling outer cylinder 101. The top of the sampling outer cylinder 101 is designed with an installation cavity. The center of the top of the sampling outer cylinder 101 is designed with a cavity. The bottom outer end of the sampling outer cylinder 101 is designed with an external thread. The top inner side of the replaceable sampling tube 102 is designed with an internal thread. The internal thread of the replaceable sampling tube 102 engages with the external thread of the sampling outer cylinder 101. The bottom outer end of the piston 106 is designed with... The piston 106 has a mounting groove, a sliding hole at its bottom center, and a groove on its inner side. A rubber septum 109 is fitted onto the groove of the piston 106. The outer side of the bottom of the piston 106 is slidably connected to the cavity of the sampling outer cylinder 101. A rubber pad 104 is also made of rubber. A soft pad 107 is fitted onto the mounting groove of the piston 106. A through hole is designed at the top of the horizontal block 108. The outer side of the horizontal block 108 is fixedly connected to the upper inner side of the replaceable sampling tube 102. A spring 105 abuts against the top of the plug 103. The soft pad 107 is made of rubber. A rubber pad 104 is fitted onto the cavity of the replaceable sampling tube 102. The lower inner side of the sample tube 102 has a threaded hole at the top of the plug 103. The outer side of the plug 103 is slidably connected to the inner side of the replaceable sampling tube 102. The pulling member drives the plug 103 to move upward. By rotating the replaceable sampling tube 102, the replaceable sampling tube 102 is installed on the sampling outer cylinder 101. Pulling the piston 106 moves the soft pad 107 on the sampling outer cylinder 101. After the internal pressure of the sampling outer cylinder 101 increases, it drives the plug 103 to move upward and separate from the rubber pad 104. The spring 105 is compressed, and exhaust gas enters the sampling outer cylinder 101. When the piston 106 is stopped being pulled...The spring 105 drives the block 103 to descend and abut against the rubber pad 104, preventing exhaust gas from leaking from the replaceable sampling tube 102, facilitating exhaust gas storage, and thus avoiding any impact on the purity of the sampled exhaust gas.
[0022] Secondly, the vertical rod 114 is threadedly connected to the plug 103 and slidably connected to the piston 106; the extension rod 115 is slidably connected to the vertical rod 114 and is located on the side of the vertical rod 114 away from the piston 106. The piston 106 has a through hole at its top end, the bottom end of the vertical rod 114 has an external thread, and the top end of the vertical rod 114 has a sliding cavity. The external thread of the vertical rod 114 engages with the mounting internal thread hole of the plug 103. The bottom end of the extension rod 115 is slidably connected to the sliding cavity of the vertical rod 114. By pulling the extension rod 115, the vertical rod 114 is moved, and the vertical rod 114 moves the plug 103 on the sampling outer cylinder 101, thereby pulling the plug 103 upward.
[0023] Meanwhile, the block 103 has an internal threaded hole 116, which is located on the side of the block 103 near the vertical rod 114 and engages with the vertical rod 114. The internal threaded hole 116 is located at the top of the block 103. The bottom end of the vertical rod 114 engages with the internal threaded hole 116 through the sliding hole of the piston 106 and the spacer 109. By rotating the vertical rod 114, it engages with the internal threaded hole 116, thus installing the vertical rod 114 on the block 103, thereby realizing the connection between the vertical rod 114 and the block 103.
[0024] Then, the block 111 is fixedly connected to the sampling outer cylinder 101 and located on the side of the sampling outer cylinder 101 away from the replaceable sampling tube 102; the sealing block 110 is sleeved on the side of the block 111 near the sampling outer cylinder 101, and the outer side of the block 111 is fixedly connected to the lower inner side of the sampling outer sleeve. The sealing block 110 is made of rubber and is sleeved on the outer side of the bottom end of the block 111. By rotating the replaceable sampling tube 102, it cooperates with the sampling outer cylinder 101, so that the sealing block 110 abuts between the replaceable sampling tube 102 and the sampling outer cylinder 101, thereby improving the sealing performance between the replaceable sampling tube 102 and the sampling outer cylinder 101.
[0025] Finally, the insulation layer 112 is detachably connected to the sampling outer cylinder 101; the mounting block 113 is threadedly connected to the sampling outer cylinder 101 and located on the side of the sampling outer cylinder 101 away from the replaceable sampling tube 102. The upper part of the mounting cavity of the sampling outer cylinder 101 is designed with an internal thread, and the outer side of the vertical end of the mounting block 113 is designed with an external thread. The external thread of the mounting block 113 engages with the internal thread of the sampling outer cylinder 101. The outer side of the sealing block 110 is detachably connected to the mounting cavity of the sampling outer cylinder 101. By placing the insulation layer 112 in the mounting cavity of the sampling outer cylinder 101 and rotating the block 111, the insulation layer 112 is installed on the sampling outer cylinder 101, thereby improving the insulation effect after the waste gas is collected.
[0026] When using the exhaust gas sampling device of this embodiment, the insulation layer 112 is placed in the mounting cavity of the sampling outer cylinder 101. The block 111 is rotated to install the insulation layer 112 onto the sampling outer cylinder 101. The replaceable sampling tube 102 is rotated to cooperate with the sampling outer cylinder 101, so that the sealing block 110 abuts between the replaceable sampling tube 102 and the sampling outer cylinder 101, improving the sealing performance between the replaceable sampling tube 102 and the sampling outer cylinder 101. The replaceable sampling tube 102 is then installed on the sampling outer cylinder 101. Pulling the piston 106 causes the soft pad 107 to move on the sampling outer cylinder 101. After the internal pressure of the sampling outer cylinder 101 increases, it causes the block 103 to move upward and separate from the rubber pad 104. The spring 105 is compressed, and the waste gas enters the sampling outer cylinder 101. When the piston 106 is stopped being pulled, the spring 105 drives the block 103 to descend and abut against the rubber pad 104, preventing the waste gas from leaking from the replaceable sampling tube 102. This facilitates the storage of the waste gas and avoids affecting the purity of the sampled waste gas.
[0027] 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 can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A waste gas sampling device, comprising a sampling outer cylinder, characterized in that: It also includes structural components; The structural components include a replaceable sampling tube, a plug, a rubber pad, a spring, a piston, a soft pad, a cross block, a septum, and a pulling member. The piston is slidably mounted on one side of the sampling outer cylinder. The replaceable sampling tube is threadedly connected to the sampling outer cylinder and is located on the side of the sampling outer cylinder away from the piston. The rubber pad is sleeved on the side of the replaceable sampling tube away from the sampling outer cylinder. The plug is slidably connected to the sampling outer cylinder and is located on the side of the sampling outer cylinder close to the rubber pad. The cross block is fixedly connected to the replaceable sampling tube and is located on the side of the replaceable sampling tube away from the rubber pad. One end of the spring is connected to the cross block, and the other end of the spring is connected to the plug. The soft pad is sleeved on the side of the piston close to the sampling outer cylinder. The pulling member is connected to the plug and also to the piston. The septum is sleeved on the side of the piston away from the sampling outer cylinder.
2. The waste gas sampling device as described in claim 1, characterized in that: The pulling member includes a vertical rod and an extension rod. The vertical rod is threadedly connected to the plug and slidably connected to the piston. The extension rod is slidably connected to the vertical rod and is located on the side of the vertical rod away from the piston.
3. The waste gas sampling device as described in claim 2, characterized in that: The plug has an internal threaded hole for mounting, which is located on the side of the plug near the vertical rod and engages with the vertical rod.
4. The waste gas sampling device as described in claim 1, characterized in that: The structural component further includes a sealing block and a block body. The block body is fixedly connected to the sampling outer cylinder and is located on the side of the sampling outer cylinder away from the replaceable sampling tube. The sealing block is sleeved on the side of the block body close to the sampling outer cylinder.
5. The waste gas sampling device as described in claim 1, characterized in that: The structural component also includes an insulation layer and a mounting block. The insulation layer is detachably connected to the sampling outer cylinder. The mounting block is threadedly connected to the sampling outer cylinder and is located on the side of the sampling outer cylinder away from the replaceable sampling tube.