Oxidation tube with sealing protection device for nitrogen oxide detection

Through the clamping design of the control mechanism and the thud ring, the problem of latex cap falling off and poor sealing during the transportation of the oxidation tube is solved, and multiple sealing and moisture-proof entry are achieved, ensuring the accuracy of sampling results and reducing production costs.

CN223190987UActive Publication Date: 2025-08-05PETROLEUM OCCUPATIONAL HEALTH TECH SERVICE CENT OF CHINA NAT PETROLEUM CORP
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Patent Information

Application Number
CN202422410602.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2025-08-05
Estimated Expiration
2034-10-08

AI Technical Summary

Technical Problem

The latex cap is easily fallen off during transportation, resulting in poor sealing effect, affecting the humidity and sampling results of the internal reactants, and being easily damaged.

Method used

The design of the control mechanism and the thunder ring is adopted, and the thunder ring is clamped between the circular tenon and the thunder ring, combined with the latex row and the multiple seals of the cotton plate, ensuring that the latex cap does not fall off during transportation, and prevents moisture from entering through the elastic protective cover and the cotton plate.

Benefits of technology

Improves the sealing of the oxidation tube, prevents damage and moisture from entering during transportation, ensures the accuracy of sampling results, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oxidation tube sealing protection, and discloses a nitrogen oxide detection oxidation tube with a sealing protection device, which comprises two tube bodies, straight tubes are fixedly arranged between the two tube bodies and on the opposite sides of the two tube bodies, latex caps are arranged on the straight tubes on the two sides in an adsorption manner, and the sealing protection device is arranged between the two tube bodies. A control mechanism is arranged on the inner side of the latex cap in an adhesion mode and extends into the inner side of the straight pipe, the control mechanism comprises a probing rod, a sliding sleeve is arranged on a rod body of the probing rod in a sliding mode, first connecting plates are fixedly arranged on the front side and the rear side of a sleeve body of the sliding sleeve correspondingly, and a pressing plate is fixedly arranged between the two first connecting plates; according to the device, the risk that the latex cap falls off is reduced through cooperation of the control mechanism and the mortise opening ring on the inner side of the straight pipe, meanwhile, multiple sealing protection is conducted on nitric oxide on the inner side of the straight pipe through the control mechanism and the latex cap, and the sealing effect of the oxidation pipe is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of oxidation tube sealing protection, in particular to an oxidation tube for nitrogen oxide detection with a sealing protection device. Background Art

[0002] An oxidation tube is a glass container for chromium trioxide, typically used in conjunction with a porous corrugated plate absorption tube. It consists of two elliptical tubes with straight tubes at either end. During use, nitric oxide is oxidized to nitrogen dioxide, while the porous corrugated plate absorption tube is connected to the straight tube via a flexible hose, facilitating the detection of nitric oxide concentrations.

[0003] Traditional oxidation tubes are sealed with latex caps on both sides. However, during transportation, the latex caps on both sides of the oxidation tube are easily fallen off due to vibration and other factors. At the same time, the filling material inside the latex cap is single and it is difficult to effectively prevent external moisture from entering the oxidation tube, which may cause damage to the reactants during transportation. Moreover, when the sealing effect of the oxidation tube is poor and the internal humidity is high, chromium trioxide is easy to absorb moisture and deliquesce, which may contaminate the absorption tube and affect the subsequent sampling results. Utility Model Content

[0004] The purpose of the present utility model is to provide an oxidation tube for nitrogen oxide detection with a sealing protection device in order to solve the above problems, thereby improving the sealing effect of the oxidation tube, preventing it from affecting subsequent use, and ensuring that the oxidation tube will not be damaged during transportation and cause economic losses.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An oxidation tube for nitrogen oxide detection with a sealing protective device comprises: two tube bodies, a straight tube fixedly provided between the two tube bodies and on opposite sides of the two tube bodies, latex caps adsorbed on the straight tubes on both sides, a control mechanism adhered to the inner side of the latex caps, and the control mechanism extends deep into the inner side of the straight tubes, and elastic protective sleeves fixedly provided on the outer sides of the two tube bodies;

[0007] The control mechanism includes a probe rod, a sliding sleeve is slidably provided on the probe rod body, a first connecting plate is fixedly provided on the front and rear sides of the sliding sleeve body, a pressing plate is fixedly provided between the two first connecting plates, a first spring is fixedly provided on the side of the probe rod close to the pressing plate, and the other end of the first spring is connected to the pressing plate.

[0008] Furthermore, a rotating shaft is rotatably provided on the upper and lower sides of the sliding sleeve body, a connecting rod is fixedly provided on the rotating shaft body, and a circular tenon is fixedly provided on one side of the connecting rod.

[0009] Furthermore, a second spring is fixedly arranged between the probe rod shaft pressing plate and the sliding sleeve, and one end of the second spring is connected to the probe rod shaft and the other end is connected to the connecting rod shaft.

[0010] Furthermore, two latex elastic plates are fixedly provided on the side of the probe rod body away from the pressing plate, and cotton plates are fixedly provided on the opposite sides of the two latex elastic plates, and latex rows are clamped on the inner sides of the two cotton plates.

[0011] Furthermore, second connecting plates are fixedly provided on the upper and lower sides of one side of the probe rod, and an adhesion plate is fixedly provided on one side of the second connecting plate.

[0012] Furthermore, the outer side of the adhesive plate is glued to the inside of the latex cap.

[0013] Furthermore, mortise rings are provided on the inner sides of two of the three straight tubes.

[0014] With the above structure, first, before transporting the oxidation tube, the inner side of the latex cap is turned over, and then the adhesive plate of the control mechanism is connected with adhesive glue, and then the latex cap is restored to its original shape. At this time, the staff can push the latex cap into the inner side of the tube body of this product. In this process, the latex row will first contact the inner wall of the tube body, and in the process of continuing to push inward, the circular tenon of the control mechanism will collide and contact with the mortise ring on the inner side of the straight tube, so that the fixed circular tenon connecting rod will tilt around the rotating shaft. , and press the second spring so that the circular tenon part passes smoothly through the mortise ring on the inner side of the straight tube. After the circular tenon passes through the mortise ring, the staff can loosen the latex cap and stop pushing it inward. At this time, the straight tube and the latex cap are connected, and the circular tenon and the mortise ring are clamped together, so that the circular tenon cannot be directly pulled out from the outside. In addition, the damping of the latex row itself reduces the possibility of the latex cap falling off from the straight tube during transportation, thereby improving the protection of the tube body and the sealing of the straight tube during transportation.

[0015] Then, when it is needed, the staff will first hold the tube body and push the protruding part of one side of the latex cap inward. At this time, the latex cap will push the pressing plate toward one side of the straight tube. The pressing plate will push the sliding sleeve to one side through the first connecting plate, so that the sliding sleeve slides on the surface of the probe rod toward the direction of the latex row while moving the rotating shaft outside the sliding sleeve. However, at this time, the connecting rod of the rotating shaft body is connected to the second spring set on the probe rod body. The second spring will pull the connecting rod toward itself, causing the connecting rod to rotate on the rotating shaft and move the circular tenon on one side of the connecting rod toward the direction of the probe rod. At this time, the circular tenon will no longer contact the mortise ring on the inside of the straight tube, and the staff can remove the latex cap from the inside of the straight tube and use this product. At the same time, the staff can turn the latex cap over and remove the control mechanism connected with adhesive on the inside for reuse to reduce costs.

[0016] In summary, the beneficial effects of the present invention are: through the connection between the circular tenon of the control mechanism on the inner side of the latex cap and the mortise ring protruding from the inner side of the straight tube, and in combination with the elasticity of the latex row itself and the damping between the straight tubes, the latex cap will not easily fall off from the outside of the straight tube, thereby ensuring the safety of the product during transportation, and the interior of the straight tube is sealed by the double-layer cotton board and thickened latex row in the control mechanism to prevent excessive moisture from entering the tube body, thereby improving the sealing effect and avoiding affecting the sampling results. At the same time, the control mechanism can be removed from the latex cap and glued to a new latex cap with an adhesive for use with the oxidation tube, so as to facilitate reuse and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a front view of the utility model;

[0019] Figure 2 It is a partial cross-sectional view of the utility model;

[0020] Figure 3 This utility model Figure 2 A magnified view of point A;

[0021] Figure 4 This is a front view of the control mechanism of the utility model;

[0022] Figure 5 It is an axonometric view of the control mechanism of the present utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Tube body; 2. Straight tube; 3. Latex cap; 4. Control mechanism; 401. Probe rod; 402. Sliding sleeve; 403. First connecting plate; 404. Pressing plate; 405. First spring; 406. Second connecting plate; 407. Adhesive plate; 408. Rotating shaft; 409. Connecting rod; 410. Round tenon; 411. Second spring; 412. Latex elastic plate; 413. Cotton plate; 414. Latex row; 5. Elastic protective cover. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 As shown, the utility model provides an oxidation tube for detecting nitrogen oxides with a sealing protection device, comprising: two tube bodies 1, a straight tube 2 is fixedly provided between the two tube bodies 1 and on opposite sides of the two tube bodies 1, latex caps 3 are adsorbed and provided on the straight tubes 2 on both sides, a control mechanism 4 is adhered and provided on the inner side of the latex caps 3, and the control mechanism 4 penetrates into the inner side of the straight tubes 2, mortise rings are provided on the inner sides of the two straight tubes 2 on both sides, and elastic protective sleeves 5 are fixedly provided on the outer sides of the two tube bodies 1, and the elastic protective sleeves 5 protect the outer protrusions of the tube bodies 1. After the tube bodies 1 are hit, the elastic protective sleeves 5 weaken the impact force received, thereby protecting the safety of the tube bodies 1;

[0027] When in use, the snap-fit between the control mechanism 4 and the mortise ring in the straight pipe 2 improves the connection strength between the latex cap 3 and the straight pipe 2. At the same time, the control mechanism 4 forms multiple sealed spaces on the inner side of the straight pipe 2 to avoid leakage of internal nitrogen oxides before transportation and use.

[0028] See also Figure 2-Figure 5As shown, the control mechanism 4 includes a probe rod 401, a sliding sleeve 402 is slidably provided on the rod body of the probe rod 401, and a first connecting plate 403 is fixedly provided on the front and rear sides of the sliding sleeve 402, and a pressing plate 404 is fixedly provided between the two first connecting plates 403. A first spring 405 is fixedly provided on the side of the probe rod 401 close to the pressing plate 404, and the other end of the first spring 405 is connected to the pressing plate 404. A rotating shaft 408 is rotatably provided on the upper and lower sides of the sliding sleeve 402, and a connecting rod 409 is fixedly provided on the shaft body of the connecting rod 409. A circular tenon 410 is fixedly provided on one side of the connecting rod 409. A second spring 411 is fixedly provided between the rod body pressing plate 404 and the sliding sleeve 402, one end of the second spring 411 is connected to the rod body of the probe rod 401 and the other end is connected to the rod body of the connecting rod 409, two latex elastic plates 412 are fixedly provided on the side of the rod body of the probe rod 401 away from the pressing plate 404, and cotton plates 413 are fixedly provided on the opposite sides of the two latex elastic plates 412, and latex rows 414 are clamped on the inner sides of the two cotton plates 413, and second connecting plates 406 are fixedly provided on the upper and lower sides of one side of the probe rod 401, and an adhesive plate 407 is fixedly provided on one side of the second connecting plate 406, and the outer side of the adhesive plate 407 is glued to the inside of the latex cap 3;

[0029] According to the above embodiment, the probe rod 401 is glued to the inner side of the latex cap 3 through the adhesive plate 407 on the second connecting plate 406 on one side, and as the user adsorbs the latex cap 3 to the outer wall of the straight tube 2, the control mechanism 4 enters the inner side of the straight tube 2. During the entry process, the mortise ring on one side of the inner wall of the straight tube 2 will contact the circular tenon 410, so that the circular tenon 410 is pressed down by the cooperation of the rotating shaft 408 and the spring and enters the interior of the straight tube 2. Then, the connecting rod 409 is restored by the spring. The connecting rod 409 brings the rotating shaft 408 and the circular tenon 410 back to their original position, and the circular tenon 410 directly contacts and engages with the mortise ring on the inner side of the straight tube 2 to complete the fixation of the latex cap 3. At the same time, a latex elastic plate 412 is provided on one side of the probe rod 401. It has a certain elasticity and cooperates with the cotton plate 413 and the latex row 414 to perform multiple seals on the straight tube 2 to prevent leakage of internal gas. The cotton plate 413 can absorb moisture and better preserve the gas inside the tube body 1.

[0030] When the latex cap 3 needs to be taken out from the inside, the user pinches the outer side of the latex cap 3 with one hand and presses one end of the latex cap 3 toward the inside of the straight tube 2 with the other hand. The pressing plate 404 pushes the sliding sleeve 402 inward through the two first connecting plates 403, so that the rotating shaft 408 and the connecting rod 409 on the outside of the sliding sleeve 402 are pulled by the spring and tilted at an angle, so that the circular tenon 410 no longer contacts the mortise ring on the inner wall of the straight tube 2. At this time, the staff peels off the latex cap 3 from the outer wall of the straight tube 2 and the device can be used normally.

[0031] With the above structure, first, before transporting the oxidation tube, the inner side of the latex cap 3 is turned over, and then the adhesive plate 407 of the control mechanism 4 is connected with adhesive glue, and then the latex cap 3 is restored to its original shape. At this time, the staff can push the latex cap 3 into the inner side of the tube body 1 of this product. In this process, the latex row 414 will first contact the inner wall of the tube body 1, and in the process of continuing to push inward, the circular tenon 410 of the control mechanism 4 will collide and contact with the mortise ring on the inner side of the straight tube 2, so that the connecting rod 409 that fixes the circular tenon 410 is tilted around the rotating shaft 408. , and press the second spring 411 so that part of the circular tenon 410 passes smoothly through the mortise ring on the inner side of the straight tube 2. After the circular tenon 410 passes through the mortise ring, the staff can loosen the latex cap 3 and stop pushing it inward. At this time, the straight tube 2 and the latex cap 3 are connected, and the circular tenon 410 and the mortise ring are clamped together, so that the circular tenon 410 cannot be pulled out directly from the outside, and the damping of the latex row 414 itself is combined to reduce the possibility of the latex cap 3 falling off from the straight tube 2 during transportation, thereby improving the protection of the sealing of the tube body 1 and the straight tube 2 during transportation;

[0032] Then, when it is needed, the staff first holds the tube body 1 and pushes the protruding part of one side of the latex cap 3 inward. At this time, the latex cap 3 will push the pressing plate 404 to one side of the straight tube 2. The pressing plate 404 pushes the sliding sleeve 402 to one side through the first connecting plate 403, so that the sliding sleeve 402 slides on the surface of the probe rod 401 toward the direction of the latex row 414 and moves the rotating shaft 408 outside the sliding sleeve 402 at the same time. However, at this time, the connecting rod 409 of the rotating shaft 408 and the second spring 41 set on the rod body of the probe rod 401 are in a state of friction. 1 connection, the second spring 411 will pull the connecting rod 409 toward itself, causing the connecting rod 409 to rotate on the rotating shaft 408 and move the circular tenon 410 on one side of the connecting rod 409 toward the direction of the probe rod 401. At this time, the circular tenon 410 will no longer contact the mortise ring on the inner side of the straight tube 2, and the staff can take out the latex cap 3 from the inside of the straight tube 2 and use the product. At the same time, the staff can turn the latex cap 3 over and disassemble the control mechanism 4 connected with the adhesive on the inside for reuse to reduce costs.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An oxidation tube for nitrogen oxide detection with a sealing protection device, characterized in that: include: Two tube bodies (1), a straight tube (2) is fixedly provided between the two tube bodies (1) and on opposite sides of the two tube bodies (1), latex caps (3) are adsorbed on the straight tubes (2) on both sides, a control mechanism (4) is adhered to the inner side of the latex cap (3), and the control mechanism (4) is deeply inserted into the inner side of the straight tube (2), and an elastic protective sleeve (5) is fixedly provided on the outer side of the two tube bodies (1); The control mechanism (4) comprises a probe rod (401), a sliding sleeve (402) being slidably provided on the probe rod (401), a first connecting plate (403) being fixedly provided on the front and rear sides of the sliding sleeve (402), a pressing plate (404) being fixedly provided between the two first connecting plates (403), a first spring (405) being fixedly provided on the side of the probe rod (401) close to the pressing plate (404), and the other end of the first spring (405) being connected to the pressing plate (404).

2. The oxidation tube for nitrogen oxide detection with a sealing protection device according to claim 1, characterized in that: The sliding sleeve (402) is rotatably provided with a rotating shaft (408) on the upper and lower sides of the sleeve body, and the rotating shaft (408) is fixedly provided with a connecting rod (409) on the shaft body, and a circular tenon (410) is fixedly provided on one side of the connecting rod (409).

3. The oxidation tube for nitrogen oxide detection with a sealing protection device according to claim 2, characterized in that: A second spring (411) is fixedly arranged between the probe rod (401) shaft pressing plate (404) and the sliding sleeve (402) above and below, and one end of the second spring (411) is connected to the probe rod (401) shaft and the other end is connected to the connecting rod (409) shaft.

4. The oxidation tube for nitrogen oxide detection with a sealing protection device according to claim 3, characterized in that: Two latex elastic plates (412) are fixedly provided on one side of the probe rod (401) away from the pressing plate (404), and cotton plates (413) are fixedly provided on the opposite side of the two latex elastic plates (412). The inner sides of the two cotton plates (413) are clamped with latex rows (414).

5. The oxidation tube for nitrogen oxide detection with a sealing protection device according to claim 1, characterized in that: A second connecting plate (406) is fixedly provided on the upper and lower sides of one side of the probe rod (401), and an adhesive plate (407) is fixedly provided on one side of the second connecting plate (406).

6. The oxidation tube for nitrogen oxide detection with a sealing protection device according to claim 5, characterized in that: The outer side of the adhesive plate (407) is glued to the inner side of the latex cap (3).

7. The oxidation tube for nitrogen oxide detection with a sealing protection device according to claim 1, characterized in that: Mortise rings are provided on the inner sides of the two straight tubes (2) of the three straight tubes (2).