Multipurpose pipeline of azotometer

Abstract

The multipurpose pipeline comprises an azotometer main body, a connecting pipe is fixedly connected to the left side of the azotometer main body, a three-way pipe is connected to the left side of the connecting pipe in an inserted mode, a valve is arranged on the three-way pipe, and a barrel body is arranged on the side, away from the connecting pipe, of the three-way pipe; a mounting block is fixedly connected to the outer side of the three-way pipe, a fixing mechanism is arranged on the mounting block, the fixing mechanism comprises a fixing block, a pressure relief mechanism is arranged on the three-way pipe, and the pressure relief mechanism comprises a sleeve. The invention relates to a multipurpose pipeline for an azotometer. The multipurpose pipeline has the characteristics that a connecting pipe is stably connected with a three-way pipe, and the three-way pipe is protected.

Description

Technical Field

[0001] The invention belongs to the technical field of nitrogen determination instruments, and in particular relates to a multi-purpose pipeline for a nitrogen determination instrument. Background Art

[0002] The nitrogen analyzer is an experimental instrument specially used to determine the nitrogen content in samples. It is widely used in food, chemical, agricultural, pharmaceutical and other fields. It is based on the classic Kjeldahl method and performs high-precision quantitative analysis of the nitrogen content in samples through digestion, distillation and titration steps. The nitrogen analyzer improves the efficiency of the traditional Kjeldahl method and realizes automated operation. The multi-purpose pipeline of the nitrogen analyzer is used to inject different samples when in use. According to the utility model disclosed in the patent authorization announcement number CN117191706A, the nitrogen analyzer includes a high-temperature cracking unit, a filter connected to the output end of the high-temperature cracking unit, a purge pipeline connected to the first end of the purge gas source and the second end of the input end of the high-temperature cracking unit, a temporary storage bin connected to the output end of the filter, an oxidation tube connected to the temporary storage bin, an ozone purge pipeline connected to the first end of the ozone source and the second end of the input end of the oxidation tube, and a photoelectric detection unit whose detection end of the photoelectric detection unit faces the oxidation tube. The gas in the temporary storage bin is quantitatively transported to the oxidation tube multiple times. Each time the temporary storage bin transports gas to the oxidation tube, the oxidation tube is purged once. However, the connection between the multi-purpose pipeline of the nitrogen analyzer and the connecting pipe is unstable during use, which may easily lead to sample leakage. In addition, when the internal pressure of the multi-purpose pipeline of the nitrogen analyzer is too high, it is not convenient to release the pressure, which may easily lead to pipeline rupture. Summary of the invention The purpose of the present invention is to provide a multi-purpose pipeline for a nitrogen analyzer in order to solve the above problems, thereby solving the problems mentioned in the background technology.

[0004] In order to solve the above problems, the present invention provides a multi-purpose pipeline technical solution for nitrogen analyzer: A multipurpose pipeline of a nitrogen analyzer comprises a nitrogen analyzer body, a connecting pipe is fixedly connected to the left side of the nitrogen analyzer body, a tee is inserted into the left side of the connecting pipe, a valve is arranged on the tee, a barrel is arranged on the side of the tee away from the connecting pipe, a mounting block is fixedly connected to the outer side of the tee, a fixing mechanism is arranged on the mounting block, the fixing mechanism comprises a fixing block, a pressure relief mechanism is arranged on the tee, and the pressure relief mechanism comprises a sleeve.

[0005] The outer end of the fixing block is fixedly connected to the fixing block, and the fixing block is in contact with the three-way pipe, and the outer side of the fixing block is rotatably connected to the limiting sleeve, and the outer side of the fixing block is fixedly connected to a convex block, and the right side of the fixing block is fixedly connected to a positioning rod, and the outer side of the connecting pipe is fixedly connected to a positioning plate, and the positioning plate contacts the limiting sleeve, and the positioning plate is slidably connected to the positioning rod. The upper end of the fixing block contacts the limiting plate, and the limiting plate is fixedly connected to the limiting block on one side close to the limiting sleeve, and the limiting plate contacts the limiting sleeve, and the limiting block is slidably connected to the limiting sleeve, and the limiting plate is fixedly connected to the limiting rod on one side close to the fixing block, and the limiting rod is slidably connected to the fixing block, and the inner side of the fixing block is fixedly connected to the limiting ring, and a first spring is arranged on the outer side of the limiting rod, and one end of the first spring contacts the limiting rod, and the other end of the first spring contacts the limiting ring. Through the design of the fixing mechanism, the connection between the connecting pipe and the three-way pipe can be kept stable.

[0006] Preferably, the limiting sleeve contacts the mounting block, and the limiting sleeve is connected to the connecting pipe via threads. The limiting sleeve can play a limiting role on the connecting pipe through the design of the limiting sleeve.

[0007] Preferably, an annular groove is provided inside the limiting sleeve, and a protrusion is slidably connected inside the annular groove. The design of the annular groove can cooperate with the protrusion to limit the limiting sleeve.

[0008] Preferably, the limiting ring is in contact with the limiting plate, and the limiting ring is slidably connected to the limiting rod. The limiting ring can play a limiting role on the limiting rod through the design of the limiting ring.

[0009] Preferably, the interior of the three-way pipe is fixedly connected with a sleeve, the interior of the sleeve is slidably connected with a slider, the side of the slider away from the sleeve is fixedly connected with a sealing gasket, the sealing gasket is slidably connected to the sleeve, an air hole is opened inside the sleeve, a second spring is arranged inside the sleeve, the interior of the sleeve is rotatably connected with a threaded rod, the outer side of the threaded rod is fixedly connected with a retaining ring, the retaining ring contacts the inner wall of the sleeve, the interior of the sleeve is slidably connected with a pressure plate, the pressure plate is connected to the threaded rod by threads, one end of the second spring contacts the slider, the other end of the second spring contacts the pressure plate, the interior of the sleeve is fixedly connected with a guide frame, the guide frame is slidably connected to the pressure plate, and the design of the pressure relief mechanism can play a pressure relief and maintaining role on the three-way pipe.

[0010] Preferably, a fixing ring is fixedly connected to the interior of the sleeve, and the fixing ring is in contact with the sealing gasket. The design of the fixing ring can limit the sealing gasket.

[0011] Preferably, one end of the threaded rod away from the slider is fixedly connected with a knob, and the knob is in contact with the sleeve. The threaded rod can be easily rotated through the design of the knob.

[0012] The beneficial effects of the present invention are as follows: the present invention relates to a multi-purpose pipeline for a nitrogen analyzer, which has the characteristics of making the connection between the connecting pipe and the tee pipe stable and protecting the tee pipe. In specific use, compared with the traditional multi-purpose pipeline for a nitrogen analyzer, the multi-purpose pipeline for a nitrogen analyzer has the following beneficial effects: Firstly, the connecting pipe and the three-way pipe are plugged in and then the limiting sleeve is rotated so that the limiting sleeve plays a limiting role on the connecting pipe; by providing components such as a limiting plate, a limiting block, and a first spring, the first spring can drive the limiting block on the limiting plate to slide into the limiting sleeve, so that the limiting sleeve plays a limiting role, so that the limiting sleeve remains stable when limiting the connecting pipe, thereby keeping the connection between the connecting pipe and the three-way pipe stable.

[0013] Secondly, by providing components such as a sleeve, a sealing gasket, and an air hole, when the pressure in the tee pipe is too high, the pressure can be released through the air hole on the sleeve, and by providing components such as a threaded rod and a pressure plate, the threaded rod can be rotated to drive the pressure plate to squeeze the second spring 66, thereby adjusting the pressure resistance of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A three-dimensional diagram of the local structure; Figure 3 For the present invention Figure 2 Side view of the local structure Figure 1 ; Figure 4 For the present invention Figure 2 Side view of the local structure Figure 2 ; Figure 5 For the present invention Figure 2 A partial structure enlarged front view and cross-sectional view; Figure 6 For the present invention Figure 3 A-section structure enlarged view.

[0016] In the figure: 1. nitrogen analyzer body; 2. three-way pipe; 21. valve; 22. barrel; 3. connecting pipe; 4. mounting block; 5. fixing mechanism; 51. fixing block; 52. limiting sleeve; 53. protrusion; 54. ring groove; 55. positioning rod; 56. positioning plate; 57. limiting plate; 58. limiting block; 59. limiting rod; 510. limiting ring; 511. first spring; 6. pressure relief mechanism; 61. sleeve; 62. slider; 63. sealing gasket; 64. fixing ring; 65. air hole; 66. second spring; 67. threaded rod; 68. retaining ring; 69. knob; 610. pressure plate; 611. guide frame. DETAILED DESCRIPTION like Figure 1-6 As shown, this specific implementation adopts the following technical solutions: Example: A multipurpose pipeline of a nitrogen analyzer comprises a nitrogen analyzer body 1, a connecting pipe 3 is fixedly connected to the left side of the nitrogen analyzer body 1, a tee 2 is inserted to the left side of the connecting pipe 3, a valve 21 is arranged on the tee 2, a barrel 22 is arranged on the side of the tee 2 away from the connecting pipe 3, a mounting block 4 is fixedly connected to the outside of the tee 2, a fixing mechanism 5 is arranged on the mounting block 4, the fixing mechanism 5 comprises a fixing block 51, a pressure relief mechanism 6 is arranged on the tee 2, and the pressure relief mechanism 6 comprises a sleeve 61.

[0018] Among them, the right side of the mounting block 4 is fixedly connected with a fixing block 51, the fixing block 51 contacts the tee pipe 2, the outer side of the fixing block 51 is rotatably connected to the limiting sleeve 52, the outer side of the fixing block 51 is fixedly connected with a protrusion 53, the right side of the mounting block 4 is fixedly connected with a positioning rod 55, the outer side of the connecting pipe 3 is fixedly connected with a positioning plate 56, the positioning plate 56 contacts the limiting sleeve 52, the positioning plate 56 is slidably connected with the positioning rod 55, the upper end of the mounting block 4 contacts the limiting plate 57, and the limiting plate 57 is fixedly connected to the limiting block on the side close to the limiting sleeve 52 58, the limit plate 57 is in contact with the limit sleeve 52, the limit block 58 is slidably connected to the limit sleeve 52, the limit plate 57 is fixedly connected to the side of the mounting block 4 with a limit rod 59, the limit rod 59 is slidably connected to the mounting block 4, the interior of the mounting block 4 is fixedly connected with a limit ring 510, a first spring 511 is provided on the outer side of the limit rod 59, one end of the first spring 511 is in contact with the limit rod 59, and the other end of the first spring 511 is in contact with the limit ring 510, through the design of the fixing mechanism 5, the connection between the connecting pipe 3 and the three-way pipe 2 can be kept stable.

[0019] The limiting sleeve 52 is in contact with the mounting block 4 , and the limiting sleeve 52 is connected to the connecting pipe 3 via threads. The limiting sleeve 52 can limit the connecting pipe 3 through its design.

[0020] The limiting sleeve 52 has an annular groove 54 formed inside, and a protrusion 53 is slidably connected inside the annular groove 54 . The design of the annular groove 54 can cooperate with the protrusion 53 to limit the limiting sleeve 52 .

[0021] The limiting ring 510 is in contact with the limiting plate 57 , and the limiting ring 510 is slidably connected to the limiting rod 59 . The limiting ring 510 can limit the limiting rod 59 through its design.

[0022] Among them, the interior of the three-way pipe 2 is fixedly connected with a sleeve 61, and the interior of the sleeve 61 is slidably connected with a slider 62. The side of the slider 62 away from the sleeve 61 is fixedly connected with a sealing gasket 63, and the sealing gasket 63 is slidably connected to the sleeve 61. An air hole 65 is opened inside the sleeve 61, and a second spring 66 is arranged inside the sleeve 61. A threaded rod 67 is rotatably connected inside the sleeve 61, and a retaining ring 68 is fixedly connected to the outer side of the threaded rod 67, and the retaining ring 68 contacts the inner wall of the sleeve 61. A pressure plate 610 is slidably connected to the interior of the sleeve 61, and the pressure plate 610 is threadedly connected to the threaded rod 67. One end of the second spring 66 contacts the slider 62, and the other end of the second spring 66 contacts the pressure plate 610. A guide frame 611 is fixedly connected to the interior of the sleeve 61, and the guide frame 611 is slidably connected to the pressure plate 610. Through the design of the pressure relief mechanism 6, the three-way pipe 2 can be relieved and maintained.

[0023] A fixing ring 64 is fixedly connected to the interior of the sleeve 61 , and the fixing ring 64 is in contact with the sealing gasket 63 . The design of the fixing ring 64 can limit the sealing gasket 63 .

[0024] One end of the threaded rod 67 away from the slider 62 is fixedly connected with a knob 69 , and the knob 69 is in contact with the sleeve 61 . The design of the knob 69 allows the threaded rod 67 to be easily rotated.

[0025] The use state of the present invention is as follows: when in use, by moving the limit plate 57 in the direction away from the mounting block 4, the limit plate 57 drives the limit rod 59 to slide in the limit ring 510, and the limit rod 59 squeezes the first spring 511, so that the limit plate 57 drives the limit block 58 to slide out of the limit sleeve 52, and the limit sleeve 52 can be released; by plugging the connecting pipe 3 and the three-way pipe 2, the connecting pipe 3 drives the positioning plate 56 and the positioning rod 55 to be sleeved, and then the limiting sleeve 52 is rotated, so that the limiting sleeve 52 and the connecting pipe 3 are threadedly moved, so that the limiting sleeve 52 has a limiting effect on the connecting pipe 3, and the plugging of the connecting pipe 3 and the three-way pipe 2 can be kept stable, and then the limit plate 57 is loosened, and the limit rod 59 can be driven to move by the elastic force of the first spring 511, so that the limit rod 59 drives the limit block 58 on the limit plate 57 to slide into the limit sleeve 52, and the limit sleeve 52 can be limited; The sample is injected into the connecting tube 3 through the tee 2. When the internal pressure of the tee 2 is too high, the sample will enter the sleeve 61 through the fixing ring 64, so that the sample drives the sealing gasket 63 to move, and the sealing gasket 63 squeezes the second spring 66, so that the sealing gasket 63 no longer blocks the air hole 65, so that the sample is discharged through the air hole 65 on the sleeve 61, thereby facilitating the pressure relief of the tee 2; by turning the knob 69, the knob 69 drives the threaded rod 67 to rotate, and the threaded rod 67 and the pressure plate 610 undergo threaded motion, so that the pressure plate 610 moves on the guide frame 611, and the pressure plate 610 squeezes the second spring 66, so that the pressure resistance effect of the pressure relief mechanism 6 can be adjusted.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-purpose pipeline for a nitrogen analyzer, comprising a nitrogen analyzer body (1), characterized in that: A connecting pipe (3) is fixedly connected to the left side of the nitrogen analyzer body (1), a three-way pipe (2) is inserted into the left side of the connecting pipe (3), a valve (21) is provided on the three-way pipe (2), a barrel (22) is provided on the side of the three-way pipe (2) away from the connecting pipe (3), a mounting block (4) is fixedly connected to the outside of the three-way pipe (2), a fixing mechanism (5) is provided on the mounting block (4), the fixing mechanism (5) comprises a fixing block (51), and a pressure relief mechanism (6) is provided on the three-way pipe (2), the pressure relief mechanism (6) comprises a sleeve (61).

2. The multi-purpose pipeline of a nitrogen analyzer according to claim 1, characterized in that: The right side of the mounting block (4) is fixedly connected to a fixing block (51), the fixing block (51) is in contact with the three-way pipe (2), the outer side of the fixing block (51) is rotatably connected to a limiting sleeve (52), the outer side of the fixing block (51) is fixedly connected to a protrusion (53), the right side of the mounting block (4) is fixedly connected to a positioning rod (55), the outer side of the connecting pipe (3) is fixedly connected to a positioning plate (56), the positioning plate (56) is in contact with the limiting sleeve (52), the positioning plate (56) is slidably connected to the positioning rod (55), the upper end of the mounting block (4) is in contact with a limiting plate (57), the limiting plate (57) is close to the limiting sleeve A limiting block (58) is fixedly connected to one side of the limiting plate (52), the limiting plate (57) is in contact with the limiting sleeve (52), the limiting block (58) is slidably connected to the limiting sleeve (52), a limiting rod (59) is fixedly connected to the side of the limiting plate (57) close to the mounting block (4), the limiting rod (59) is slidably connected to the mounting block (4), a limiting ring (510) is fixedly connected to the inside of the mounting block (4), a first spring (511) is arranged on the outside of the limiting rod (59), one end of the first spring (511) is in contact with the limiting rod (59), and the other end of the first spring (511) is in contact with the limiting ring (510).

3. The multi-purpose pipeline of a nitrogen analyzer according to claim 2, characterized in that: The limiting sleeve (52) is in contact with the mounting block (4), and the limiting sleeve (52) is connected to the connecting pipe (3) via threads.

4. The multi-purpose pipeline of a nitrogen analyzer according to claim 2, characterized in that: An annular groove (54) is provided inside the limiting sleeve (52), and a protrusion (53) is slidably connected inside the annular groove (54).

5. The multi-purpose pipeline of a nitrogen analyzer according to claim 2, characterized in that: The limiting ring (510) is in contact with the limiting plate (57), and the limiting ring (510) is slidably connected to the limiting rod (59).

6. The multi-purpose pipeline of a nitrogen analyzer according to claim 1, characterized in that: The interior of the three-way pipe (2) is fixedly connected to a sleeve (61), the interior of the sleeve (61) is slidably connected to a slider (62), a sealing gasket (63) is fixedly connected to a side of the slider (62) away from the sleeve (61), the sealing gasket (63) is slidably connected to the sleeve (61), an air hole (65) is provided inside the sleeve (61), a second spring (66) is provided inside the sleeve (61), a threaded rod (67) is rotatably connected to the interior of the sleeve (61), and the outer surface of the threaded rod (67) is fixedly connected to the side of the slider (62) away from the sleeve (61). A retaining ring (68) is fixedly connected to the side, the retaining ring (68) contacts the inner wall of the sleeve (61), the interior of the sleeve (61) is slidably connected to a pressure plate (610), the pressure plate (610) is threadedly connected to the threaded rod (67), one end of the second spring (66) contacts the slider (62), the other end of the second spring (66) contacts the pressure plate (610), the interior of the sleeve (61) is fixedly connected to a guide frame (611), and the guide frame (611) is slidably connected to the pressure plate (610).

7. The multi-purpose pipeline of a nitrogen analyzer according to claim 6, characterized in that: A fixing ring (64) is fixedly connected to the interior of the sleeve (61), and the fixing ring (64) is in contact with the sealing gasket (63).

8. The multi-purpose pipeline of a nitrogen analyzer according to claim 6, characterized in that: One end of the threaded rod (67) away from the slider (62) is fixedly connected to a knob (69), and the knob (69) is in contact with the sleeve (61).

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