Gas circuit protection valve for evaporative light detector

Abstract

A gas circuit protection valve for an evaporative light detector comprises a first clamping plate, a second clamping plate, a positioning connecting shaft, a sealing rubber sleeve, a fixing threaded sleeve, a clamping threaded sleeve and a gas circuit pipeline, a first clamping plate lower sleeve is arranged on the lower portion of the first clamping plate, a second clamping plate lower sleeve is arranged on the lower portion of the second clamping plate, and the first clamping plate lower sleeve is attached to the second clamping plate lower sleeve. The first clamping plate lower sleeve is connected with the second clamping plate lower sleeve through the positioning connecting shaft, the first clamping plate is attached to the second clamping plate, the first clamping plate is provided with a first clamping groove, the sealing rubber sleeve is matched with the first clamping groove and inserted into the first clamping groove, and the second clamping plate is provided with a second clamping groove, the sealing rubber sleeve is matched with the second clamping groove and inserted into the second clamping groove. The gas path pipeline is matched with the sealing rubber sleeve and inserted into the sealing rubber sleeve, the first clamping plate is provided with a first clamping groove, the fixed threaded sleeves are matched with the first clamping groove and inserted into the first clamping groove, and the set of fixed threaded sleeves are distributed in the first clamping plate.

Description

Technical Field

[0001] The utility model relates to the field of evaporative light detectors, in particular to a gas path protection valve used for evaporative light detectors. Background Art

[0002] The existing patent (Announcement No.: CN207349627U) proposes a pipeline connector, including an intermediate body, two single rings and two bushings, wherein the intermediate body includes two tubular bodies, which are respectively used to connect the first pipeline and the second pipeline to be connected; the single ring is used to be sleeved on both sides of the intermediate body so that the intermediate body undergoes elastic deformation and squeezes the pipeline inside it; the bushings are respectively used to embed one end of the first pipeline and the second pipeline, and are respectively clamped in the tubular bodies on both sides of the intermediate body. However, the above document uses clamping at the joint of the two pipes, and there is no special reinforcement and leak-proof structure, which easily causes the two pipes to break when pressurized steam is applied to the pipes. Summary of the invention

[0003] The utility model aims at the above-mentioned deficiencies in the prior art and provides a gas path protection valve for an evaporative light detector, which prevents two gas path pipelines from being disconnected when pressurizing the gas path pipeline in the gas path protection of the evaporative light detector, and clamps and fixes the gas path pipeline and the butt pipe respectively.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A gas path protection valve for an evaporative light detector comprises a No. 1 clamping plate, a No. 2 clamping plate, a positioning coupling, a sealing rubber sleeve, a fixed threaded sleeve, a clamping threaded sleeve, and a gas path pipeline. The No. 1 clamping plate has a No. 1 clamping plate lower sleeve at the bottom, the No. 2 clamping plate has a No. 2 clamping plate lower sleeve at the bottom, the No. 1 clamping plate lower sleeve fits with the No. 2 clamping plate lower sleeve, the No. 1 clamping plate lower sleeve is connected to the No. 2 clamping plate lower sleeve through a positioning coupling, the No. 1 clamping plate fits with the No. 2 clamping plate, the No. 1 clamping plate has a No. 1 clamping groove, the sealing rubber sleeve is adapted to the No. 1 clamping groove, the sealing rubber sleeve is inserted into the No. 1 clamping groove, the No. 2 clamping plate has a No. 2 clamping groove, the sealing rubber sleeve is adapted to the No. 2 clamping groove, the sealing rubber sleeve is inserted into the No. 2 clamping groove, the gas path pipeline is adapted to the sealing rubber sleeve, the gas path pipeline is inserted into the sealing rubber sleeve, the No. 1 clamping plate has a No. 1 clamping groove, the fixed threaded sleeve is adapted to the No. 1 clamping groove, the fixed threaded sleeve is inserted into the No. 1 clamping groove, and a group of fixed threaded sleeves are distributed in the No. 1 clamping plate.

[0006] The No. 1 clamping slot has a No. 1 clamping strip inside, the fixed threaded sleeve has a clamping slot, the No. 1 clamping strip is adapted to the clamping slot, the No. 1 clamping strip is inserted into the clamping slot, the No. 2 clamping slot has a No. 2 clamping slot, the fixed threaded sleeve is adapted to the No. 2 clamping slot, the fixed threaded sleeve is inserted into the No. 2 clamping slot, a group of fixed threaded sleeves are distributed in the No. 2 clamping slot, the No. 2 clamping slot is opposite to the No. 1 clamping slot, and the No. 1 clamping slot is opposite to the No. 2 clamping slot.

[0007] The No. 2 clamping slot has a No. 2 clamping strip inside, the No. 2 clamping strip is adapted to the clamping slot, the No. 2 clamping strip is inserted into the clamping slot, the outer side of the clamping thread sleeve is adapted to the inner side of the fixed thread sleeve, the clamping thread sleeve is inserted into the fixed thread sleeve, the clamping thread sleeve rotates in the fixed thread sleeve, and the clamping thread sleeve has a plurality of clamping thread sleeve notches. Beneficial Effects

[0008] 1. The utility model connects the lower sleeve of the No. 1 clamping plate with the lower sleeve of the No. 2 clamping plate through a positioning coupling, so that the No. 1 clamping plate is connected to the No. 2 clamping plate, and the two can be opened and closed by a large rotation. The No. 1 clamping plate and the No. 2 clamping plate are arranged to be rotatably opened, which is more convenient for the installation and fixation of the internal components than the integrated structure. The gas path pipeline and the external pipe connecting with it are inserted into the sealing rubber sleeve and connected in the sealing rubber sleeve. The sealing rubber sleeve protects the interface of the two, and prevents leakage at the connection point of the two in the gas path protection of the evaporative light detector. The sealing rubber sleeve is placed in the No. 2 clamping groove and the No. 1 clamping groove. The No. 1 clamping plate and the No. 2 clamping plate are connected to clamp the sealing rubber sleeve inside, and the fixed threaded sleeve is inserted into the No. 1 clamping groove and the No. 2 clamping groove. The No. 1 clamping groove and the No. 2 clamping groove laterally position the fixed threaded sleeve, so that the position of the No. 1 clamping groove in the No. 1 clamping plate and the No. 2 clamping plate is fixed.

[0009] 2. The utility model inserts the No. 1 clamping strip and the No. 2 clamping strip into the clamping slot, and the No. 2 clamping strip and the No. 1 clamping strip axially position the fixed thread sleeve, so as to prevent the fixed thread sleeve from rotating when the clamping thread sleeve is connected and rotated in the gas path protection of the evaporative light detector, so that the fixed thread sleeve remains fixed, and the clamping thread sleeve is threadedly connected with the fixed thread sleeve. Since the clamping thread sleeve has a plurality of clamping thread sleeve notches, the fixed thread sleeve is deformed. When the clamping thread sleeve is rotated and screwed into the fixed thread sleeve, the diameter of one end of the clamping thread sleeve becomes smaller under the pressure of the fixed thread sleeve, so that the inner side of the clamping thread sleeve is opposite to the gas path pipeline passing through. The method is to apply pressure to clamp the gas pipeline, and prevent the gas pipeline from sliding out of the device during the gas pipeline protection of the evaporative light detector. When the eluent is atomized during use, the pressure in the gas pipeline is easily excessive, causing the gas pipeline to be disconnected from the external connecting pipe. This device, with the cooperation of various components and multiple arc-shaped pressure strips distributed in the fixed threaded sleeve, clamps the gas pipeline locally and vigorously, thereby enhancing the stability of the gas pipeline in the device. In the gas pipeline protection of the evaporative light detector, it is prevented that the two gas pipelines are disconnected when the gas pipeline is pressurized, and the gas pipeline and the connecting pipe are clamped and fixed respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is an axonometric diagram of a gas path protection valve for an evaporative light detector.

[0011] Figure 2 The utility model is an exploded isometric view of a gas path protection valve for an evaporative light detector.

[0012] Figure 3 The utility model is a cross-sectional view of a gas path protection valve for an evaporative light detector.

[0013] Figure 4 This is an axonometric drawing of the No. 1 splint described in the utility model.

[0014] Figure 5 This is an axonometric drawing of the second splint described in the utility model.

[0015] Figure 6 It is a cross-sectional view of the clamping threaded sleeve described in the utility model.

[0016] Figure 7 This is an axonometric view of the fixed threaded sleeve described in the utility model. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below according to the accompanying drawings and embodiments:

[0018] Embodiment 1:

[0019] A gas circuit protection valve for an evaporative light detector comprises a first clamping plate 01, a second clamping plate 04, a positioning coupling 06, a sealing rubber sleeve 11, a fixed threaded sleeve 12, a clamping threaded sleeve 13, and a gas circuit pipeline 16. The first clamping plate 01 has a first clamping plate lower sleeve 03 at the bottom, and the second clamping plate 04 has a second clamping plate lower sleeve 05 at the bottom. The first clamping plate lower sleeve 03 fits with the second clamping plate lower sleeve 05. The first clamping plate lower sleeve 03 is connected to the second clamping plate lower sleeve 05 by a positioning coupling. The shaft 06 connects the lower sleeve 05 of the second clamping plate, so that the first clamping plate 01 is connected with the second clamping plate 04, and the two can be opened and closed by rotating. The first clamping plate 01 and the second clamping plate 04 are arranged to be rotatable and open. Compared with the integrated structure, it is more convenient to install and fix the internal components. The first clamping plate 01 fits with the second clamping plate 04, and the first clamping plate 01 has a first clamping groove 09. The sealing rubber sleeve 11 is adapted to the first clamping groove 09, and the sealing rubber sleeve 1 1 is inserted into the No. 1 clamping groove 09, the No. 2 clamping plate 04 has a No. 2 clamping groove 07, the sealing rubber sleeve 11 is adapted to the No. 2 clamping groove 07, the sealing rubber sleeve 11 is inserted into the No. 2 clamping groove 07, the sealing rubber sleeve 11 is placed in the No. 2 clamping groove 07 and the No. 1 clamping groove 09, the No. 1 clamping plate 01 and the No. 2 clamping plate 04 are docked to clamp the sealing rubber sleeve 11 inside, the air path pipeline 16 is adapted to the sealing rubber sleeve 11, the air path pipeline 16 is inserted into the sealing rubber sleeve 11, the air path pipeline 16 and the external connecting pipe docked therewith are inserted into the sealing rubber sleeve 11 and docked in the sealing rubber sleeve 11, the sealing rubber sleeve 11 protects the interface between the two, and prevents leakage at the docking point of the two in the air path protection of the evaporative light detector, the No. 1 clamping plate 01 has a No. 1 card slot 10, the fixed threaded sleeve 12 is adapted to the No. 1 card slot 10, the fixed threaded sleeve 12 is inserted into the No. 1 card slot 10, and a group of fixed threaded sleeves 12 are distributed in the No. 1 clamping plate 01.

[0020] Embodiment 2:

[0021] The utility model describes that the No. 1 clamping groove 10 has a No. 1 clamping strip 18 inside, the fixed threaded sleeve 12 has a clamping groove 19, the No. 1 clamping strip 18 is adapted to the clamping groove 19, the No. 1 clamping strip 18 is inserted into the clamping groove 19, the No. 2 clamping groove 07 has a No. 2 clamping groove 08, the fixed threaded sleeve 12 is adapted to the No. 2 clamping groove 08, the fixed threaded sleeve 12 is inserted into the No. 2 clamping groove 08, the No. 1 clamping groove 10 and the No. 2 clamping groove 08 laterally position the fixed threaded sleeve 12, so that the No. 1 clamping groove 10 is fixed in the No. 1 clamping plate 01 and the No. 2 clamping plate 04, a group of fixed threaded sleeves 12 are distributed in the No. 2 clamping groove 07, the No. 2 clamping groove 07 is opposite to the No. 1 clamping groove 09, and the No. 1 clamping groove 10 is opposite to the No. 2 clamping groove 08.

[0022] Embodiment 3:

[0023] The second clamping slot 08 of the utility model has a second clamping strip 17 inside, the second clamping strip 17 is adapted to the clamping slot 19, the second clamping strip 17 is inserted into the clamping slot 19, the second clamping strip 17 and the first clamping strip 18 are used to axially position the fixed threaded sleeve 12, and in the gas path protection of the evaporative light detector, the fixed threaded sleeve 12 is prevented from rotating when the clamping threaded sleeve 13 is connected to the fixed threaded sleeve 12, so that the fixed threaded sleeve 12 remains fixed, the outer side of the clamping threaded sleeve 13 is adapted to the inner side of the fixed threaded sleeve 12, the clamping threaded sleeve 13 is inserted into the fixed threaded sleeve 12, and the clamping threaded sleeve 13 rotates in the fixed threaded sleeve 12 The clamping thread sleeve 13 has a plurality of clamping thread sleeve notches 14, and the clamping thread sleeve 13 is threadedly connected with the fixed thread sleeve 12. Since the clamping thread sleeve 13 has a plurality of clamping thread sleeve notches 14, the fixed thread sleeve 12 is deformed. When the clamping thread sleeve 13 is rotated and screwed into the fixed thread sleeve 12, the diameter of one end of the clamping thread sleeve 13 is reduced under the pressure of the fixed thread sleeve 12, so that the inner side of the clamping thread sleeve 13 applies pressure to the gas path pipeline 16 passing through, clamps the gas path pipeline 16, and prevents the gas path pipeline 16 from sliding out of the device during the gas path protection of the evaporative light detector.

[0024] Embodiment 4:

[0025] The gas pipeline 16 of the utility model is adapted to the clamping thread sleeve 13, and the gas pipeline 16 passes through the clamping thread sleeve 13. The clamping thread sleeve 13 has a plurality of arcuate beading strips 15 inside, and the inner side of the arcuate beading strips 15 fits with the outer side of the gas pipeline 16. The upper part of the No. 1 clamping plate 01 has a No. 1 clamping plate side plate 20, and the upper part of the No. 2 clamping plate 04 has a No. 2 clamping plate side plate 21. Bolts sequentially connect the No. 2 clamping plate side plate 21 and the No. 1 clamping plate side plate 20. When the eluent is atomized during use, Under pressure, it is easy to cause the pressure in the gas circuit to be too high, resulting in the gas circuit pipeline being disconnected from the external connecting pipe. This device, with the cooperation of various components and multiple arc-shaped pressure strips 15 distributed in the fixed threaded sleeve 12, locally clamps the gas circuit pipeline 16 with great force, thereby enhancing the stability of the gas circuit pipeline 16 in the device. In the gas circuit protection of the evaporative light detector, it is prevented that the gas circuit pipeline 16 is disconnected from the external connecting pipe when the gas circuit pipeline 16 is pressurized, and the gas circuit pipeline 16 and the connecting pipe are clamped and fixed respectively.

[0026] Embodiment 5:

[0027] The utility model installation steps are as follows: first, the air pipeline 16 is passed through the clamping threaded sleeve 13, the air pipeline 16 is passed through the fixed threaded sleeve 12, the air pipeline 16 is inserted into the sealing rubber sleeve 11, the No. 2 clamping plate 04 is connected to the No. 2 clamping plate lower sleeve 05 through the positioning coupling 06, the sealing rubber sleeve 11 is inserted into the No. 1 clamping groove 09 and the No. 2 clamping groove 07, a group of fixed threaded sleeves 12 are respectively inserted into the No. 2 clamping groove 08 and the No. 1 clamping groove 10, the No. 1 clamping strip 18 and the No. 2 clamping strip 17 are inserted into the clamping groove 19, the No. 1 clamping plate 01 is matched with the No. 2 clamping plate 04, the No. 2 clamping plate side plate 21 and the No. 1 clamping plate side plate 20 are connected with bolts in sequence, and the clamping threaded sleeve 13 is rotated to clamp the air pipeline 16 inside the clamping threaded sleeve 13.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A gas path protection valve for an evaporative light detector, characterized in that : It comprises a No. 1 clamping plate (01), a No. 2 clamping plate (04), a positioning coupling (06), a sealing rubber sleeve (11), a fixing threaded sleeve (12), a clamping threaded sleeve (13), and an air pipeline (16). The No. 1 clamping plate (01) has a No. 1 clamping plate lower sleeve (03) at the bottom, and the No. 2 clamping plate (04) has a No. 2 clamping plate lower sleeve (05) at the bottom. The No. 1 clamping plate lower sleeve (03) is fitted with the No. 2 clamping plate lower sleeve (05). The No. 1 clamping plate lower sleeve (03) is connected to the No. 2 clamping plate lower sleeve (05) through the positioning coupling (06). The No. 1 clamping plate (01) is fitted with the No. 2 clamping plate (04). The No. 1 clamping plate (01) has a No. 1 clamping groove (09). The sealing rubber sleeve ( The second clamping plate (04) has a second clamping groove (07), the sealing rubber sleeve (11) is adapted to the second clamping groove (07), the sealing rubber sleeve (11) is inserted into the second clamping groove (07), the air line pipeline (16) is adapted to the sealing rubber sleeve (11), the air line pipeline (16) is inserted into the sealing rubber sleeve (11), the first clamping plate (01) has a first clamping groove (10), the fixed thread sleeve (12) is adapted to the first clamping groove (10), the fixed thread sleeve (12) is inserted into the first clamping groove (10), and a group of fixed thread sleeves (12) are distributed in the first clamping plate (01).

2. A gas path protection valve for an evaporative light detector according to claim 1, characterized in that The first clamping groove (10) has a first clamping strip (18) inside, the fixed threaded sleeve (12) has a clamping groove (19), the first clamping strip (18) is adapted to the clamping groove (19), the first clamping strip (18) is inserted into the clamping groove (19), the second clamping groove (07) has a second clamping groove (08), the fixed threaded sleeve (12) is adapted to the second clamping groove (08), the fixed threaded sleeve (12) is inserted into the second clamping groove (08), a group of fixed threaded sleeves (12) are distributed in the second clamping groove (07), the second clamping groove (07) is opposite to the first clamping groove (09), and the first clamping groove (10) is opposite to the second clamping groove (08).

3. A gas path protection valve for an evaporative light detector according to claim 2, characterized in that The second clamping groove (08) has a second clamping strip (17) inside, the second clamping strip (17) is adapted to the clamping groove (19), the second clamping strip (17) is inserted into the clamping groove (19), the outer side of the clamping thread sleeve (13) is adapted to the inner side of the fixed thread sleeve (12), the clamping thread sleeve (13) is inserted into the fixed thread sleeve (12), the clamping thread sleeve (13) rotates inside the fixed thread sleeve (12), and the clamping thread sleeve (13) has a plurality of clamping thread sleeve notches (14).

4. A gas path protection valve for an evaporative light detector according to claim 3, characterized in that The air pipeline (16) is adapted to the clamping threaded sleeve (13), and the air pipeline (16) passes through the clamping threaded sleeve (13). The clamping threaded sleeve (13) has a plurality of arcuate strips (15) inside, and the inner side of the arcuate strips (15) fits with the outer side of the air pipeline (16).

5. A gas path protection valve for an evaporative light detector according to claim 4, characterized in that The first clamping plate (01) has a first clamping plate side plate (20) on its upper part, and the second clamping plate (04) has a second clamping plate side plate (21) on its upper part, and bolts are connected in sequence to the second clamping plate side plate (21) and the first clamping plate side plate (20).

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