Methanol closed sampling device
By designing a methanol sealed sampling device including a limiting component, the problem of the inability to control the amount of manual sampling in the prior art is solved, and high-precision methanol sampling and sample storage are achieved.
Patent Information
- Application Number
- CN202420993876.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The existing methanol gasoline detection and sampling device relies on manual extraction, and cannot effectively control the sampling volume, resulting in errors in the detection results.
A methanol sealed sampling device is designed, including a sampling cylinder, a slide rod, a piston, a handle, a valve and a limiting assembly. The limiting component limits the slider's movement route to achieve a specific sampling of the external methanol.
The device can accurately control the sampling amount of methanol, reduce errors in the detection result, and form a closed state to preserve the sample after sampling is completed.
Smart Images
Figure CN222514488U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of methanol sampling, and in particular relates to a closed methanol sampling device. Background Art
[0002] Methanol gasoline is a low-carbon energy source that can replace ordinary gasoline. It is a vehicle fuel specially used for gasoline internal combustion engine locomotives. It has the advantages of good substitutability, strong power and less pollution. Methanol gasoline needs to be tested for its composition and performance after production, and before testing, it is necessary to sample the methanol gasoline to be tested.
[0003] The existing sampling devices for methanol gasoline detection generally adopt manual extraction sampling. When manual sampling is performed each time, the sampling amount of methanol gasoline cannot be well controlled, which will cause errors in the final detection results. Utility Model Content
[0004] In view of one or more of the above defects or improvement requirements of the prior art, the utility model provides a methanol closed sampling device.
[0005] To achieve the above-mentioned purpose, the utility model provides a methanol closed sampling device, including a sampling tube and a sliding rod; the main part of the sliding rod is inside the sampling tube, the upper part of the sliding rod slides through the sampling tube, the bottom end of the sliding rod is fixedly connected with a piston, the piston is slidably connected to the inner wall of the sampling tube, the top end of the sliding rod is fixedly connected with a handle, the bottom end of the sampling tube is connected with a valve, the top wall of the sampling tube is provided with a vent hole, the outer wall of the sampling tube has a scale, a limit assembly is arranged on the right side of the sampling tube, and the limit assembly is connected to the sliding rod.
[0006] The limit assembly includes two mounting brackets, the left ends of the two mounting brackets are respectively fixedly connected to the upper and lower side edges of the outer wall of the right end of the sampling tube, a threaded rod is fixedly connected between the two mounting brackets, the two ends of the threaded rod are respectively fixedly connected to the upper and lower mounting brackets, a limit ring and a slider are sleeved on the outer wall of the threaded rod, the limit ring is threadedly connected to the threaded rod, the slider is slidably connected to the threaded rod, the right side of the slider is fixedly connected to the bottom of the connecting plate, the left side of the top of the connecting plate is fixedly connected to a connecting bracket, and the left end of the connecting bracket is fixedly sleeved on the upper outer wall of the sliding rod.
[0007] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:
[0008] The methanol sealed sampling device of the utility model can be used to change the position of the limit ring on the threaded rod by twisting the limit ring before use, and the limit ring blocks the movement path of the slide block, thereby completing the sampling process of a specific amount of external methanol. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of the utility model;
[0010] Figure 2 It is a schematic diagram of the cross-sectional structure of the sampling tube of the utility model.
[0011] In all the drawings, the same figure marks represent the same technical features, specifically: 1. sampling tube; 2. sliding rod; 3. piston; 4. handle; 5. valve; 6. vent; 7. scale; 8. limit assembly; 81. mounting frame; 82. threaded rod; 83. limit ring; 84. slider; 85. connecting plate; 86. connecting frame. DETAILED DESCRIPTION
[0012] Depend on Figure 1-2 A methanol closed sampling device is provided, comprising a sampling barrel 1 and a slide rod 2; the main part of the slide rod 2 is inside the sampling barrel 1, the upper part of the slide rod 2 slides through the sampling barrel 1, the bottom end of the slide rod 2 is fixedly connected with a piston 3, the piston 3 is slidably connected to the inner wall of the sampling barrel 1, the top end of the slide rod 2 is fixedly connected with a handle 4, the bottom end of the sampling barrel 1 is connected with a valve 5, the top wall of the sampling barrel 1 is provided with a vent hole 6, the outer wall of the sampling barrel 1 has a scale 7, a limit assembly 8 is arranged on the right side of the sampling barrel 1, and the limit assembly 8 is connected to the slide rod 2.
[0013] The limit assembly 8 includes two mounting frames 81, the left ends of the two mounting frames 81 are respectively fixedly connected to the upper and lower side edges of the outer wall of the right end of the sampling tube 1, a threaded rod 82 is fixedly connected between the two mounting frames 81, the two ends of the threaded rod 82 are respectively fixedly connected to the upper and lower mounting frames 81, the outer wall of the threaded rod 82 is sleeved with a limit ring 83 and a slider 84, the limit ring 83 is threadedly connected to the threaded rod 82, the slider 84 is slidably connected to the threaded rod 82, the right side of the slider 84 is fixedly connected to the bottom of the connecting plate 85, the top left side of the connecting plate 85 is fixedly connected with a connecting frame 86, and the left end of the connecting frame 86 is fixedly sleeved on the upper outer wall of the slide rod 2.
[0014] The methanol sealed sampling device of the utility model can change the position of the limit ring 83 on the threaded rod 82 by twisting the limit ring 83 before use. When it is needed, the handle 4 can be pressed downward first, and the slide bar 2 slides toward the inside of the sampling tube 1 and empties the air inside the sampling tube 1 through the piston 3. Then, after the sampling position is reached, the handle 4 is pulled upward, and the piston 3 moves upward with the slide bar 2 and generates negative pressure, thereby attracting the outside air to the inside of the sampling tube 1 for collection. Since the limit ring 83 blocks the movement path of the slider 84, the sampling process of a specific amount of methanol from the outside is completed. After the sampling is completed, the valve 5 can be closed to form a closed state inside the sampling tube 1 for storing the sample.
Claims
1. A methanol sealed sampling device, comprising a sampling tube (1) and a sliding rod (2), characterized in that: The main part of the slide rod (2) is inside the sample tube (1), the upper part of the slide rod (2) slides through the sample tube (1), the bottom end of the slide rod (2) is fixedly connected with a piston (3), the piston (3) is slidably connected with the inner wall of the sample tube (1), the top end of the slide rod (2) is fixedly connected with a handle (4), the bottom end of the sample tube (1) is connected with a valve (5), the top wall of the sample tube (1) is provided with a vent hole (6), the outer wall of the sample tube (1) has a scale (7), and a limit assembly (8) is arranged on the right side of the sample tube (1), and the limit assembly (8) is connected with the slide rod (2).
2. The methanol sealed sampling device according to claim 1, characterized in that: The limit assembly (8) comprises two mounting frames (81), the left ends of the two mounting frames (81) are respectively fixedly connected to the upper and lower side edges of the outer wall of the right end of the sampling tube (1), a threaded rod (82) is fixedly connected between the two mounting frames (81), the two ends of the threaded rod (82) are respectively fixedly connected to the upper and lower mounting frames (81), the outer wall of the threaded rod (82) is sleeved with a limit ring (83) and a slider (84), the limit ring (83) is threadedly connected to the threaded rod (82), the slider (84) is slidably connected to the threaded rod (82), the right side of the slider (84) is fixedly connected to the bottom of the connecting plate (85), the top left side of the connecting plate (85) is fixedly connected to a connecting frame (86), and the left end of the connecting frame (86) is fixedly sleeved on the upper outer wall of the slide rod (2).