Ammonia identification tube

Abstract

An ammonia identification tube includes an air intake pipe and a display tube. An air intake pump can be connected to the air intake pipe. An end cap is provided at one end of the air intake pipe, and a connecting pipe is connected to the end cap. A funnel-shaped connector is provided at the other end of the connecting pipe. End seals are installed at both ends of the display tube. A connecting pipe is provided on the end seals. A plug connector with a conical structure is connected to the connecting pipe. The inner end of the connecting pipe is connected to a distribution plate. The inside of the distribution plate is a hollow structure. A plurality of air intake heads are connected to the inner end of the distribution plate. A plurality of air holes are provided on the air intake head. The plug connector is plugged into the connector. This connection structure has a good sealing effect and can avoid the problem of detection gas leakage.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia detection, in particular to an ammonia identification tube. Background Art

[0002] Ammonia testing is of great significance in the environmental monitoring of breeding farms. By testing the ammonia content, it is convenient to adjust the environment in the breeding farm. The detection methods currently used include spectrophotometer detection, electrochemical detection, identification tube detection, and identification tube detection. Among them, the identification tube detection method is to obtain the concentration of ammonia by comparing the pH change of bromophenol blue alcohol solution after absorbing ammonia with the colorimetric card. After completing a test, the test substance needs to be replaced. Secondly, there is also Co(NCS)4 formed by cobalt salts and thiocyanates attached to the surface of nano-matrix materials 2- The material can be tested and the test material can be reused. However, the currently used identification tube is a tubular structure. When the test gas is introduced, the flow of the test gas prevents the test material and ammonia from being fully combined, which affects the test results. Secondly, the currently used identification tube has a poor sealing effect when the test gas is introduced, which easily reduces the content of the test gas, thus easily affecting the test results. Utility Model Content

[0003] The utility model provides an ammonia identification tube to solve the above-mentioned deficiencies in the prior art, improve the sealing effect, and enable the detection gas and the detection substance to be fully combined, thereby improving the accuracy of the detection result and having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] An ammonia identification tube includes an air intake pipe and a display tube. An air intake pump can be connected to the air intake pipe, and the detection gas is pumped in through the air intake pump. In order to prevent dust in the air from entering the air intake pipe, filter cotton can be filled in the air intake pipe. Of course, a rubber plug can be movably arranged in the air intake pipe, and a movable pull rod is arranged on the rubber plug, and the detection gas is sucked in and squeezed out through the movable pull rod. An end cap is arranged at one end of the air intake pipe, and a connecting pipe is connected to the end cap, and a funnel-shaped connector is arranged at the other end of the connecting pipe. End sealing caps are installed at both ends of the display tube, and a connecting pipe is arranged on the end sealing cap. The connecting pipe is connected to a plug connector with a conical structure. The inner end of the connecting pipe is connected to a distribution plate, and the interior of the distribution plate is a hollow structure, and the inner end of the distribution plate is connected to multiple air intake heads, and multiple air holes are opened on the air intake head. The plug connector is plugged into the connector. This connection structure has a good sealing effect and can avoid the problem of detection gas leakage. The display tube is filled with a detection substance. In this scheme, the preferred method is to use Co(NCS)4 formed by cobalt salt and thiocyanate attached to the surface of the nano matrix material, which can be recovered and reused. 2- The material is tested. Through the provided air inlet head, the test gas is evenly introduced into the test material through the air hole on it, and the concentration is tested through the color change length of the test material.

[0006] Furthermore, in order to improve the sealing effect after the connection between the connector and the plug connector, a sealing ring is provided at the outer end of the connector, and a sealing ring groove is formed at the root of the plug connector, and the sealing ring is inserted into the sealing ring groove.

[0007] Furthermore, in order to further significantly improve the sealing effect, the inner and outer circumferences of the sealing ring may be conical walls, and the cross-section of the sealing ring groove may be a V-shaped structure.

[0008] Furthermore, mounting rings are respectively installed at both ends of the display tube, a plurality of support plates are arranged on the outer circumference of the mounting ring, a movable rod is passed through the outer end of the support plate, a push-pull head is arranged at the outer end of the movable rod, a pull ring is arranged at the inner end of the movable rod, a pull rod is arranged on the push-pull head, a plurality of rotating protrusions are respectively installed at both ends of the display tube, a pair of rotating side plates are hingedly connected at the outer end of the rotating protrusion, a first hole is opened at the outer end of the rotating side plate, a second hole is connected at the inner end of the first hole, the first hole and the second hole are connected to form a V-shaped structure, and the opening of the V-shaped structure faces inward, and the pull rod is connected between the first hole and the second hole. The outer end of each pair of rotating side plates is provided with an L-shaped plate, and the outer periphery of the end cover is provided with a plurality of clamping platforms, and the clamping platforms are provided with a plurality of spring pins, and the upper end of the spring pin is provided with a wedge block, and the outer wall of the wedge block is an inclined surface, and a spring is provided between the wedge block and the clamping platform, and the spring is sleeved on the spring pin. The pull rod can be pushed and pulled by moving the movable rod, and the push-pull operation of the pull rod facilitates the rotation of the L-shaped plate, so that the L-shaped plate is clamped on the clamping platform, and in order to ensure the stability after clamping, a wedge block is provided, and the L-shaped plate can be locked by the rebound of the wedge block. When the air is inletted, the sealing effect between the plug connector and the connector can be effectively improved by the above method.

[0009] Furthermore, in order to improve the stability after positioning, the outer end of the first hole extends outwardly and the inner end of the second hole extends inwardly and obliquely.

[0010] The advantages of the above technical solution are:

[0011] The utility model facilitates the detection of ammonia and reduces the detection cost by means of reusable detection materials in the prior art. In addition, the accuracy of the detection is improved by improving the sealing effect during the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0013] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0014] Figure 2 An enlarged view of A is shown.

[0015] Figure 3 A cross-sectional structural diagram of one embodiment is shown.

[0016] Figure 4 An enlarged view of B is shown. DETAILED DESCRIPTION

[0017] like Figure 1~Figure 4As shown, an ammonia identification tube includes an air intake pipe 1 and a display tube 2. An end cap 12 is provided at one end of the air intake pipe 1. A connecting pipe 10 is connected to the end cap 12. A funnel-shaped connector 11 is provided at the other end of the connecting pipe 10. End seals 20 are installed at both ends of the display tube 2. A connecting pipe 21 is provided on the end seals 20. A plug connector 22 with a conical structure is connected to the connecting pipe 21. The plug connector 22 is plugged into the connector 11. The inner end of the connecting pipe 21 is connected to a distribution plate 23. The inside of the distribution plate 23 is a hollow structure. A plurality of air intake heads 24 are connected to the inner end of the distribution plate 23. A plurality of air holes are provided on the air intake heads 24. The display tube 2 is filled with a detection substance. A sealing ring 13 is provided at the outer end of the connector 11. A sealing ring groove 220 is formed at the root of the plug connector 22. The sealing ring 13 is inserted into the sealing ring groove 220. The inner and outer circumferences of the sealing ring 13 are conical walls, and the cross section of the sealing ring groove 220 is a V-shaped structure.

[0018] In some embodiments, a suction pump is connected to the air inlet pipe 1 and is filled with filter cotton.

[0019] In some other embodiments, a rubber plug is movably provided in the air inlet pipe, and a movable pull rod is provided on the rubber plug, and the detection gas is sucked in and squeezed out by the movable pull rod.

[0020] The display tube 2 is provided with mounting rings 3 at both ends, and the outer periphery of the mounting ring 3 is provided with a plurality of support plates 30, and the outer end of the support plate 30 is penetrated with a movable rod 31, and the outer end of the movable rod 31 is provided with a push-pull head 33, and the inner end of the movable rod 31 is provided with a pull ring 32, and the push-pull head 33 is provided with a pull rod 34, and the two ends of the display tube 2 are provided with a plurality of rotating protrusions 35, and the outer ends of the rotating protrusions 35 are hinged with a pair of rotating side plates 36, and the outer ends of the rotating side plates 36 are provided with a first hole 37, and the inner end of the first hole 37 is connected with a second hole 38, and the first hole 37 and the second hole 38 are connected to form a V-shaped structure, and the opening of the V-shaped structure faces inward, and the outer end of the first hole 37 extends outwardly and the inner end of the second hole 38 extends inwardly. The pull rod 34 moves in the first hole 37 and the second hole 38, and the outer end of each pair of rotating side plates 36 is provided with an L-shaped plate 39.

[0021] A plurality of clamping platforms 4 are arranged on the outer periphery of the end cover 12, and a plurality of spring pins are passed through the clamping platforms 4. A wedge block 40 is arranged at the upper end of the spring pin, and the outer wall of the wedge block 40 is an inclined surface. A spring is arranged between the wedge block 40 and the clamping platform 4, and the spring is sleeved on the spring pin.

[0022] In this embodiment, the detection gas is fed in by an air intake pump, and dust in the detection gas is filtered out by filter cotton after the gas is fed in.

[0023] In a specific detection, the plug connector 22 needs to be plugged into the connector 11 first.

[0024] Then push the pull ring 32, and the movement of the pull ring 32 will drive the movable rod 31 to move, and the movement of the movable rod 31 will drive the pull rod 34 to move outward, and the movement of the pull rod 34 will move from the second hole 38 to the first hole 37, and when the pull rod 34 moves, it will cause the rotating side plate 36 to rotate inward, and the L-shaped plate 39 to rotate inward, and when rotating, the L-shaped plate 39 will push the wedge block 40 to move downward until the L-shaped plate 39 is located on the inner side of the wedge block 40, at this time, the wedge block 40 will have the effect of limiting the outward rotation of the L-shaped plate 39.

[0025] Finally, the detection gas is introduced into the distribution plate 23, and the detection gas is distributed to the gas inlet head 24 through the distribution plate 23, and finally the detection gas is introduced into the Co(NCS)4 formed by the cobalt salt and thiocyanate attached to the surface of the nano-matrix material through a plurality of gas holes opened thereon. 2- The cobalt salt and thiocyanate are attached to the surface of the nano-matrix material to form Co(NCS)4 2- The material changes color, and the ammonia concentration is confirmed by the length of the color change of the material.

[0026] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. An ammonia identification tube, characterized in that: It comprises an air intake pipe (1) and a display pipe (2); An end cover (12) is provided at one end of the air inlet pipe (1), a connecting pipe (10) is connected to the end cover (12), and a funnel-shaped connecting head (11) is provided at the other end of the connecting pipe (10); End covers (20) are installed at both ends of the display tube (2), a connecting tube (21) is provided on the end cover (20), a plug connector (22) having a conical structure is connected to the connecting tube (21), the inner end of the connecting tube (21) is connected to a distribution plate (23), the inside of the distribution plate (23) is a hollow structure, and the inner end of the distribution plate (23) is connected to a plurality of air inlet heads (24), and a plurality of air holes are provided on the air inlet heads (24); The plug connector (22) is plugged into the connector (11); The display tube (2) is filled with a detection substance.

2. The ammonia identification tube according to claim 1, characterized in that: A sealing ring (13) is provided at the outer end of the connector (11), a sealing ring groove (220) is formed at the root of the plug connector (22), and the sealing ring (13) is inserted into the sealing ring groove (220).

3. The ammonia identification tube according to claim 2, characterized in that: The inner and outer circumferences of the sealing ring (13) are conical walls, and the cross-section of the sealing ring groove (220) is a V-shaped structure.

4. The ammonia identification tube according to claim 1, characterized in that: The display tube (2) is respectively provided with a mounting ring (3) at both ends thereof, a plurality of support plates (30) are provided on the outer periphery of the mounting ring (3), a movable rod (31) is passed through the outer end of the support plate (30), a push-pull head (33) is provided at the outer end of the movable rod (31), a pull ring (32) is provided at the inner end of the movable rod (31), a pull rod (34) is provided on the push-pull head (33), a plurality of rotating protrusions (35) are respectively provided at both ends of the display tube (2), a pair of rotating side plates (36) are hingedly connected at the outer end of the rotating protrusion (35), a first hole (37) is provided at the outer end of the rotating side plate (36), a second hole (38) is connected at the inner end of the first hole (37), the first hole (37) and the second hole (38) are connected to form a V-shaped structure, and the opening of the V-shaped structure faces inward, the pull rod (34) moves in the first hole (37) and the second hole (38), and an L-shaped plate (39) is provided at the outer end of each pair of rotating side plates (36); A plurality of clamping platforms (4) are provided on the outer periphery of the end cover (12), a plurality of spring pins are passed through the clamping platforms (4), a wedge block (40) is provided at the upper end of the spring pin, the outer wall of the wedge block (40) is an inclined surface, a spring is provided between the wedge block (40) and the clamping platform (4), and the spring is sleeved on the spring pin.

5. The ammonia identification tube according to claim 4, characterized in that: The outer end of the first hole (37) extends outwardly at an angle, and the inner end of the second hole (38) extends inwardly at an angle.

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