Lofting device for oxygen-nitrogen-hydrogen analyzer

Abstract

The utility model relates to the technical field of lofting tools for oxygen-nitrogen-hydrogen analyzers, in particular to a lofting device for an oxygen-nitrogen-hydrogen analyzer. According to the utility model, the tinfoil tube is adopted to isolate a sample from the sample channel, so that the sample is prevented from being in direct contact with the sample channel, the friction force between the sample and the sample channel is reduced, the sample is ensured to fall off smoothly, and when the sample and the inner wall of the tinfoil tube are blocked, the tinfoil tube can be slightly shaken up and down to enable the sample to fall off smoothly; according to the utility model, the problem that the sample is blocked in the sample channel due to the fact that the outer diameter of the sample is close to the inner diameter of the sample channel or burrs are arranged on the periphery of the sample is avoided; through the arrangement of the observation mirror assembly, the condition that a tinfoil tube and a sample pass through the interior can be conveniently observed, the angle between the lens assembly I and the lens assembly II is adjusted, the condition that the tinfoil tube and the sample pass through the interior can be conveniently observed through refraction between the lens I and the lens II, and observation at the position higher than equipment is not needed.

Description

Technical Field

[0001] This utility model relates to the technical field of sampling tools for oxygen, nitrogen, and hydrogen analyzers, specifically a sampling device for oxygen, nitrogen, and hydrogen analyzers. Background Technology

[0002] An oxygen, nitrogen, and hydrogen analyzer is an instrument used to accurately measure and analyze the oxygen, nitrogen, and hydrogen content in samples. It is widely used in materials science, quality control, metallurgical process control, energy, environmental monitoring, chemical industry, biomedicine, geological exploration, and aerospace.

[0003] The existing oxygen, nitrogen, and hydrogen analyzers come with a sample funnel as their sample feeding device. The inner diameter of the larger opening side of the sample funnel is typically around 28 mm, while the inner diameter of the smaller opening side is around 8 mm. The inner diameter of the analyzer's own sample inlet is approximately 9 mm. During sample feeding, the smaller opening side of the sample funnel is inserted into the analyzer's own sample inlet. The sample is then fed in from the larger opening side of the funnel, passes through the sample channel, and finally slides into the test crucible.

[0004] The sample channel of the oxygen, nitrogen, and hydrogen analyzer is vertical, and the sample channel leads directly to the crucible below. The sample channel is a circular tube with a length of about 15cm and an inner diameter of 9mm.

[0005] When the outer diameter of the sample is close to the inner diameter of the sample channel, such as when the sample length is 10mm, the sample will get stuck in the vertical sample channel if it is tilted slightly during the falling process, causing the sample to be unable to fall normally and thus leading to test failure.

[0006] The circular samples made by the punching machine are all 7mm in diameter. Some samples have small burrs around the perimeter after preparation. In addition, due to the long-term sample preparation, the sample melts and splashes into the sample channel, making the sample channel not smooth enough. This makes the burr-bearing sample easy to get stuck in the sample channel, preventing the sample from falling normally and thus causing the test to fail.

[0007] When a sample gets stuck, the components above the sample channel need to be manually removed to take out the sample. Since the sample inlet is usually located at the top of the oxygen, nitrogen and hydrogen analyzer, which is high up, it is difficult to directly observe the location of the stuck sample when removing the components around the sample inlet and taking out the stuck sample. It is necessary to use auxiliary tools to reach a position higher than the equipment in order to accurately see the sample. Therefore, the process of removing stuck samples is cumbersome, time-consuming and laborious. Utility Model Content

[0008] The purpose of this invention is to provide a sample placement device for an oxygen, nitrogen, and hydrogen analyzer, avoiding the problem of sample getting stuck in the sample channel due to the sample's outer diameter being close to the sample channel's inner diameter or the sample having burrs around its perimeter.

[0009] To solve the above-mentioned technical problems, this utility model provides a sampling device for an oxygen, nitrogen, and hydrogen analyzer, comprising an inner support tube, an outer clamp, a tin foil tube, and an observation lens assembly. The outer clamp includes an arc ring with a notch on its side wall. Protrusions are provided on the side walls of the arc ring on both sides of the notch, and the two protrusions are connected by screw I. The inner support tube is connected inside the tin foil tube and to its top. The outer wall of the inner support tube is in contact with the inner wall of the tin foil tube. The outer clamp is connected to the outside of the tin foil tube and to its top. The inner wall of the arc ring is engaged with the outer wall of the tin foil tube. The top of the tin foil tube is clamped between the inner support tube and the outer clamp. A support rod is fixedly connected to the top surface of the inner support tube. The observation lens assembly includes a lens assembly I, which includes a lens I and a frame. The lens I is fixedly connected inside the frame, and the frame is rotatably connected to the support rod.

[0010] Furthermore, two supports I are fixedly connected to the top surface of the support rod, and each support I has a through hole I. Two supports II are fixedly connected to the outer wall of the bottom surface of the frame, and each support II has a through hole II. The two supports II are rotatably connected to the outside of the two supports I. The two through holes I correspond one-to-one with the two through holes II. A screw II is inserted into each through hole I and through hole II. After the screw II passes through the through hole I and through hole II, a nut I is connected to it.

[0011] Furthermore, one of the two protrusions has a screw hole, and the other of the two protrusions has a waist-shaped hole. Screw I passes through the waist-shaped hole and is connected to the screw hole.

[0012] Furthermore, the observation mirror assembly includes a lens assembly II, which includes a lens II and a frame II. The lens II is fixedly connected inside the frame II, and the lens assembly II is rotatably connected to the lens assembly I.

[0013] Furthermore, two supports Ⅲ are fixedly connected to the outer wall of the top surface of the frame, and each support Ⅲ has a through hole Ⅲ. Two supports Ⅳ are fixedly connected to the outer wall of the bottom surface of the frame Ⅱ, and each support Ⅳ has a through hole Ⅳ. The two supports Ⅲ are rotatably connected to the outside of the two supports Ⅳ respectively. The two through holes Ⅲ correspond one-to-one with the two through holes Ⅳ. A screw Ⅲ is inserted into each through hole Ⅲ and through hole Ⅳ. After the screw Ⅲ passes through the through hole Ⅲ and through hole Ⅳ, a nut Ⅱ is connected.

[0014] Furthermore, the observation mirror assembly includes multiple lens assemblies II, with adjacent lens assemblies II being rotatably connected.

[0015] Furthermore, two supports V are fixedly connected to the outer wall of the top surface of the frame II. Each support V has a through hole V. The two supports V of one of the two adjacent lens assemblies II are rotatably connected to the outside of the two supports IV of the other lens assembly II. The two through holes V correspond one-to-one with the two through holes IV. A screw III is inserted into each through hole V and hole IV. After the screw III passes through the through hole V and hole IV, a nut II is connected to it.

[0016] Furthermore, both the lens I and the frame are rectangular.

[0017] Furthermore, both the lens II and the frame II are rectangular.

[0018] The beneficial effects of this utility model are:

[0019] This invention uses a foil tube to isolate the sample from the sample channel, thereby avoiding direct contact between the sample and the sample channel, reducing the friction between the sample and the sample channel, and ensuring the smooth drop of the sample. When the sample gets stuck between the inner wall of the foil tube, the foil tube can be gently shaken up and down to allow the sample to fall smoothly. This invention avoids the problem of the sample getting stuck in the sample channel due to the outer diameter of the sample being close to the inner diameter of the sample channel or the sample having burrs around its periphery. The observation lens assembly facilitates the observation of the foil tube and the sample passing through. By adjusting the angle between lens assembly I and lens assembly II, the refraction between lens I and lens II can be used to easily observe the foil tube and the sample passing through, without needing to be in a position higher than the equipment for observation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This utility model Figure 1 AA section view;

[0022] Figure 3 This utility model Figure 2 AA section view;

[0023] Figure 4 This utility model Figure 3 BB section view;

[0024] Figure 5 This utility model Figure 3 CC section view;

[0025] Figure 6 This is a cross-sectional view of the movable rodent-proof plate of this utility model when it is retracted and blocked by the blocking pin;

[0026] Figure 7This is a schematic diagram of the lower rodent guard structure of this utility model;

[0027] Figure 8 This is a schematic diagram of the retaining pin structure of this utility model.

[0028] In the diagram: 1. Inner support tube; 2. Outer clamp; 201. Arc ring; 202. Protrusion; 203. Screw hole; 204. Waist-shaped hole; 3. Tin foil tube; 4. Screw I; 5. Support rod; 501. Support I; 502. Through hole I; 6. Lens assembly I; 601. Lens I; 602. Frame; 603. Support II; 604. Through hole II; 605. Support III; 606. Through hole III; 7. Lens assembly II; 701. Lens II; 702. Frame II; 703. Support IV; 704. Through hole IV; 705. Support V; 706. Through hole V; 9. Nut I; 10. Screw II; 11. Screw III; 12. Nut II. Detailed Implementation

[0029] like Figures 1-8 As shown, the present invention provides a sampling device for an oxygen, nitrogen, and hydrogen analyzer, comprising an inner support tube 1, an outer clamp 2, a foil tube 3, and an observation mirror assembly. The outer clamp 2 includes an arc ring 201 with a notch on its side wall. Both sides of the notch have protrusions 202 on their side walls, connected by screws I4. One of the protrusions 202 has a screw hole 203, and the other has a slotted hole 204. Screw I4 passes through the slotted hole 204 and connects to the screw hole 203. The inner support tube 1 is connected inside the foil tube 3 and to its top, with its outer wall fitting against the inner wall of the foil tube 3. The outer clamp 2 is connected to the outside of the foil tube 3 and to its top. The inner wall of the arc ring 201 is engaged with the outer wall of the foil tube 3, and the top of the foil tube 3 is clamped. Between the inner support tube 1 and the outer hoop 2, the top surface of the inner support tube 1 is fixedly connected to the support rod 5. The observation mirror assembly includes a lens assembly I6, which includes a lens I601 and a frame 602. The lens I601 is fixedly connected inside the frame 602, and the frame 602 is rotatably connected to the support rod 5. Two supports I501 are fixedly connected to the top surface of the support rod 5. Each of the two supports I501 has a through hole I502. Two supports II603 are fixedly connected to the outer wall of the bottom surface of the frame 602. Each of the two supports II603 has a through hole II604. The two supports II603 are rotatably connected to the outside of the two supports I501. The two through holes I502 correspond one-to-one with the two through holes II604. Each through hole I502 and through hole II604 is inserted with a screw II10. After passing through the through hole I502 and through hole II604, the screw II10 is connected to a nut I9.

[0030] It should be noted that, in order to ensure smooth rotation between support II 603 and support I 501, nut I 9 and screw II 10 should not be tightened too much. The tightening of nut I 9 and screw II 10 should ensure that support II 603 and support I 501 can be fixed by friction, and can also rotate under the action of external force.

[0031] The observation mirror assembly includes a lens assembly II7, which includes a lens II701 and a frame II702. The lens II701 is fixedly connected to the frame II702, and the lens assembly II7 is rotatably connected to the lens assembly I6. The observation mirror assembly includes multiple lens assemblies II7, and two adjacent lens assemblies II7 are rotatably connected. In this embodiment, a total of four lens assemblies II7 are provided.

[0032] Two supports Ⅲ605 are fixedly connected to the outer wall of the top surface of the frame 602, and each of the two supports Ⅲ605 is provided with a through hole Ⅲ606.

[0033] Two supports IV703 are fixedly connected to the outer wall of the bottom surface of frame II702. Both supports IV703 are provided with through holes IV704. Two supports V705 are fixedly connected to the outer wall of the top surface of frame II702.

[0034] The lens assembly I6 and lens assembly II7 are connected by two supports V705, each with a through hole V706 fixedly connected to it; two supports III605 are rotatably connected to the outside of two supports IV703 respectively, and the two through holes III606 correspond one-to-one with the two through holes IV704 respectively. Each through hole III606 and through hole IV704 is fitted with a screw III11, and the screw III11 passes through the through hole III606 and through hole IV704 and is connected to a nut II12.

[0035] It should be noted that, in order to ensure smooth rotation between support V705 and support III605, screw III11 and nut II12 should not be tightened too much. The tightening of screw III11 and nut II12 should ensure that support V705 and support III605 can be fixed by friction, and can also rotate under the action of external force.

[0036] The two adjacent lens assemblies II7 are connected in such a way that the two supports V705 of one lens assembly II7 are rotatably connected to the outside of the two supports IV703 of the other lens assembly II7. The two through holes V706 correspond one-to-one with the two through holes IV704. Each through hole V706 and hole IV704 is fitted with a screw III11. After the screw III11 passes through the through hole V706 and hole IV704, a nut II12 is connected to it.

[0037] It should be noted that, in order to ensure smooth rotation between support V705 and support IV703, screw III11 and nut II12 should not be tightened too much. The tightening of screw III11 and nut II12 should ensure that support V705 and support IV703 can be fixed by friction, and can also rotate under the action of external force.

[0038] Both the lens I 601 and the frame 602 are rectangular.

[0039] Both the lens II701 and the frame II702 are rectangular.

[0040] In this invention, the tin foil tube 3 can be rolled by workers using smooth and flat tin foil. The length of the tin foil tube 3 is generally required to be approximately the same as the length of the sample channel. The inner support tube 1 and the outer clamp 2 clamp and fix the tin foil tube 3. Considering that the two protrusions 202 will be displaced when the outer clamp 2 is tightened with screw I4, a waist-shaped hole 204 is provided on one of the protrusions 202 in this invention. The waist-shaped hole 204 is used to compensate for the displacement of the protrusion 202.

[0041] During sample placement, insert the foil tube 3 into the sample channel and insert the sample from inside the inner support tube 1. The sample enters the oxygen, nitrogen, and hydrogen analyzer through the foil tube 3 and finally falls into the test crucible. Because the foil tube 3 is soft and smooth, its design separates the sample from the sample channel, greatly reducing the friction between the sample and the sample channel. Samples with burrs are less likely to get stuck, thus preventing burr samples from getting stuck. If the sample gets stuck between itself and the inner wall of the foil tube 3, gently shake the foil tube 3 up and down to allow the sample to fall smoothly, preventing samples with a diameter close to that of the sample channel from getting stuck in the sample channel.

[0042] The observation lens assembly is designed to facilitate the observation of the tin foil tube 3 and the sample passing through. By adjusting the angle between lens assembly I6 and lens assembly II7, the refraction between lens I601 and lens II701 can be used to easily observe the tin foil tube 3 and the sample passing through, eliminating the need to be positioned above the equipment for observation.

[0043] When sample jamming occurs and sampling is required, adjust the angle between lens assembly I6 and multiple lens assemblies II7 so that the staff can easily see the jamming situation in the sample channel. Then, gently shake the foil tube 3 up and down to allow the sample to fall smoothly. During the gentle shaking of the foil tube 3, the staff should observe the situation in the sample channel at all times to ensure that the jamming is eliminated.

Claims

1. A sample dispensing device for an oxygen, nitrogen, and hydrogen analyzer, characterized in that: The utility model provides a kind of observation mirror assembly, including inner support pipe (1), outer sleeve hoop (2), tin paper tube (3) and observation mirror assembly;Outer sleeve hoop (2) includes arc ring (201), and the sidewall of arc ring (201) is equipped with a gap, the sidewall of arc ring (201) on both sides of gap is equipped with lug (202), two lugs (202) are connected by screw I (4) between, inner support pipe (1) is connected inside tin paper tube (3), inner support pipe (1) is connected in tin paper tube (3) top, inner support pipe (1) outer wall and tin paper tube (3) inner wall are pasted, outer sleeve hoop (2) is connected outside tin paper tube (3), outer sleeve hoop (2) is connected in tin paper tube (3) top, arc ring (201) inner wall is clamped on tin paper tube (3) outer wall, tin paper tube (3) top is clamped between inner support pipe (1) and outer sleeve hoop (2), inner support pipe (1) top surface is fixedly connected in support rod (5), observation mirror assembly includes lens assembly I (6), lens assembly I (6) includes lens I (601) and frame (602), lens I (601) is fixedly connected in frame (602), frame (602) is rotatably connected in support rod (5).

2. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to claim 1, characterized in that: The support rod (5) top surface is fixedly connected with two supports I (501), two supports I (501) are equipped with through hole I (502), the frame (602) bottom surface outer wall is fixedly connected with two supports II (603), two supports II (603) are equipped with through hole II (604), two supports II (603) are rotatably connected outside two supports I (501), two through holes I (502) are corresponding with two through holes II (604) one to one, screw II (10) is inserted in each through hole I (502) and through hole II (604), and the screw II (10) is connected with nut I (9) after passing through through hole I (502) and through hole II (604).

3. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to claim 2, characterized in that: One of the two lugs (202) is equipped with screw hole (203), and the other lug (202) is equipped with waist hole (204), and the screw I (4) is connected in screw hole (203) after passing through waist hole (204).

4. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to claim 3, characterized in that: The observation mirror assembly includes lens assembly II (7), and the lens assembly II (7) includes lens II (701) and frame II (702), the lens II (701) is fixedly connected in the frame II (702), and the lens assembly II (7) is rotatably connected to the lens assembly I (6).

5. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to claim 4, characterized in that: The outer wall of the top surface of the frame (602) is fixedly connected with two supports III (605), the two supports III (605) are each provided with a through hole III (606), the outer wall of the bottom surface of the frame II (702) is fixedly connected with two supports IV (703), the two supports IV (703) are each provided with a through hole IV (704), the two supports III (605) are respectively rotatably connected to the outer sides of the two supports IV (703), the two through holes III (606) and the two through holes IV (704) correspond to each other, a screw III (11) is inserted into each of the through hole III (606) and the through hole IV (704), and the screw III (11) is connected with a nut II (12) after penetrating through the through hole III (606) and the through hole IV (704).

6. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to claim 5, characterized in that: The observation mirror assembly comprises a plurality of mirror piece assemblies II (7), and adjacent two of the mirror piece assemblies II (7) are rotatably connected.

7. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to claim 6, characterized in that: The outer wall of the top surface of the frame II (702) is fixedly connected with two supports V (705), the two supports V (705) are each fixedly connected with a through hole V (706), the two supports V (705) of one of the adjacent two mirror piece assemblies II (7) are rotatably connected to the outer sides of the two supports IV (703) of the other mirror piece assembly II (7), the two through holes V (706) and the two through holes IV (704) correspond to each other, a screw III (11) is inserted into each of the through hole V (706) and the through hole IV (704), and the screw III (11) is connected with a nut II (12) after penetrating through the through hole V (706) and the through hole IV (704).

8. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to any one of claims 1 to 7, characterized in that: The mirror piece I (601) and the frame (602) are both rectangular.

9. A dispensing device for an oxygen, nitrogen and hydrogen analyzer according to any one of claims 4-7, characterized in that: The mirror piece II (701) and the frame II (702) are both rectangular.

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