Drying and filtering device of gas chromatograph

Abstract

The utility model discloses a drying and filtering device of a meteorological chromatographic instrument. The drying and filtering device comprises the chromatograph, the empty groove formed in the center of the chromatograph, the filtering assembly arranged on the side wall of the upper end of the empty groove and the clamping assembly arranged on the side wall of the lower end of the empty groove, when the drying and filtering device needs to be installed, pulling plates are pulled towards the two sides to slide in a front groove, and a clamping plate at the rear end is driven to slide towards the interior of an inner groove; a telescopic rod and a spring are extruded and shrunk, a plug-in box is inserted into a slot, pulling force on a pulling plate is released, and a motor is controlled to operate to drive a first bevel gear connected with the motor to rotate, drive second bevel gears on the two sides to rotate in a meshed mode, drive a screw connected with the second bevel gears to rotate, and drive a sleeve plate to transversely slide in a sliding groove in a meshed mode; and the clamping plates on the two sides of the upper end are driven to move oppositely or separately to adjust the clamping distance, so that an object needing to be detected by the gas chromatograph is stably fixed, and stable detection is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a drying and filtration device for a gas chromatograph. Background Technology

[0002] Currently, gas chromatographs are commonly used in coal mines and chemical industries to analyze and test gas components and concentrations in order to ensure accurate data. However, current gas chromatographs typically introduce gas directly without filtering out liquid components. The test results are usually measured in ppm, requiring high precision, but impurities such as moisture or dust can introduce significant errors.

[0003] An existing patent (publication number CN215539701U) discloses a drying and filtering device for a gas chromatograph. First, the gas pump is started, and then the gas pump is started to draw gas into the collection box. The gas is initially blocked by the second baffle, so that the moisture in the gas is condensed by the condenser and the condenser tube and then guided into the collection box through the liquid guide plate. The remaining components in the air continue to remain in the collection box and in the exhaust pipe. This device can make the moisture in the sample gas fully absorbed and filtered out.

[0004] However, existing filtration devices have some problems during use: 1. The current filter drying device cannot be disassembled separately, requiring maintenance and cleaning inside the chromatograph, which is inconvenient. 2. Existing chromatographs use a triangular positioning structure to position the object to be detected, but the triangular positioning component cannot firmly and stably position rectangular objects, affecting detection stability. Utility Model Content

[0005] The purpose of this invention is to provide a drying and filtration device for a gas chromatograph to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a chromatograph, an empty slot opened in the center of the chromatograph, a filter assembly disposed on the upper side wall of the empty slot, and a clamping assembly disposed on the lower side wall of the empty slot;

[0007] The filter assembly includes a slot on the upper side of the empty slot, a detachable insert box is inserted into the slot, inner grooves are opened on both sides of the insert box, a card plate is movably arranged inside the inner groove, card slots that cooperate with the card plate are opened on both sides of the slot, and a dryer filter is fitted on the lower external end of the insert box.

[0008] The clamping assembly includes a central groove at the center of the lower end of the slot, a first bevel gear is provided on the inner wall of the front end of the central groove, a motor is connected to the front end of the first bevel gear, and second bevel gears that cooperate with the first bevel gear are provided on both sides of the central groove.

[0009] As a further improvement of this utility model: a telescopic rod is provided at the other end of the card plate, and a spring is fitted on the outer wall of the telescopic rod.

[0010] As a further improvement of this utility model: a front groove is provided on the front side wall of the inner groove, and a pull plate that cooperates with the front groove is provided at the front end of the card plate.

[0011] As a further embodiment of this utility model: sliding grooves are provided on the outer sides of both ends of the central groove, and a screw is provided inside the sliding groove, with a sleeve plate fitted on the outer wall of the screw.

[0012] As a further improvement of this utility model: a limiting groove is provided on the rear side of the slide, and a limiting plate that cooperates with the limiting groove is provided on the rear side of the sleeve plate.

[0013] As a further improvement of this utility model, a clamping plate is provided on the upper surface of the sleeve plate.

[0014] As a further embodiment of this invention, the rotation input end of the screw is connected to the rotation output end of the second bevel gear.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When the drying and filtering equipment needs to be installed, the pull plates are pulled to both sides to slide in the front groove, which drives the rear clamping plate to slide into the inner groove, compressing and retracting the telescopic rod and spring, inserting the insertion box into the slot, releasing the pulling force of the pull plates, and the telescopic rod and spring push the clamping plate outward to insert it into the aligned clamping slot, thus completing the quick installation and fixing of the drying filter.

[0017] 2. The present invention controls the operation of the motor to drive the first bevel gear connected to it to rotate, which in turn drives the second bevel gears on both sides to rotate, which in turn drives the screw connected to it to rotate. The engagement drives the sleeve plate to slide laterally in the slide groove. Under the fiber of the limiting plate embedded in the limiting groove, the upper two clamping plates move towards each other or away from each other to adjust the clamping distance, thereby stably fixing the object to be detected by the gas chromatograph and facilitating stable detection. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0019] Figure 2This is a schematic diagram of the filter assembly according to an embodiment of the present utility model;

[0020] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of part A in the diagram;

[0021] Figure 4 This is a schematic diagram of the clamping assembly according to an embodiment of the present utility model.

[0022] In the diagram: 1. Chromatograph; 2. Empty slot; 301. Slot; 302. Insertion box; 303. Inner slot; 304. Clamping plate; 305. Clamping slot; 306. Telescopic rod; 307. Spring; 308. Front slot; 309. Pull plate; 310. Dryer filter; 401. Central slot; 402. First bevel gear; 403. Motor; 404. Second bevel gear; 405. Slide groove; 406. Screw; 407. Sleeve plate; 408. Limiting slot; 409. Limiting plate; 410. Clamping plate. Detailed Implementation

[0023] To facilitate the solution of the problem, this utility model provides a drying and filtration device for a gas chromatograph. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] like Figures 1 to 4 As shown, this embodiment provides a drying and filtration device for a gas chromatograph, including a chromatograph 1, an empty slot 2 opened in the center of the chromatograph 1, a filter assembly disposed on the upper side wall of the empty slot 2, and a clamping assembly disposed on the lower side wall of the empty slot 2.

[0026] The filter assembly includes a slot 301 opened on the upper side of the slot 2. A box 302 is detachably inserted into the slot 301. Inner grooves 303 are opened on both sides of the box 302. A retaining plate 304 is movably arranged inside the inner groove 303. A retaining groove 305 that cooperates with the retaining plate 304 is opened on both sides of the slot 301. A dryer filter 310 is fitted on the lower external side of the box 302.

[0027] The clamping assembly includes a central groove 401 located at the center of the lower end of the slot 2. A first bevel gear 402 is provided on the inner wall of the front end of the central groove 401. A motor 403 is connected to the front end of the first bevel gear 402. Second bevel gears 404 that cooperate with the first bevel gear 402 are provided on both sides of the central groove 401.

[0028] Example 2

[0029] In addition to all the technical features in Embodiment 1, this embodiment also includes: a telescopic rod 306 is provided at the other end of the card plate 304, and a spring 307 is fitted on the outer wall of the telescopic rod 306. The telescopic rod 306 and the spring 307 are squeezed and contracted to insert the insertion box 302 into the slot 301.

[0030] Furthermore, the front side wall of the inner groove 303 is provided with a front groove 308, and the front end of the clamping plate 304 is provided with a pull plate 309 that cooperates with the front groove 308. Pulling the pull plate 309 makes it slide in the front groove 308, which drives the clamping plate 304 at the rear end to slide into the inner groove 303.

[0031] Furthermore, the central groove 401 has sliding grooves 405 on both sides, and a screw 406 is provided inside the sliding groove 405. A sleeve plate 407 is fitted on the outer wall of the screw 406. When the screw 406 rotates, it engages and drives the sleeve plate 407 to slide laterally in the sliding groove 405.

[0032] Furthermore, a limiting groove 408 is provided on the rear side of the slide 405, and a limiting plate 409 is provided on the rear side of the sleeve plate 407 to cooperate with the limiting groove 408. When the limiting plate 409 is embedded in the fiber of the limiting groove 408, it drives the upper two side clamping plates 410 to move towards each other or away from each other to adjust the clamping distance.

[0033] As a further improvement of this utility model: the upper surface of the sleeve plate 407 is provided with a clamping plate 410, which drives the clamping plates 410 on both sides of the upper end to move towards each other or away from each other to adjust the clamping distance, thereby stably fixing the object to be detected by the gas chromatograph.

[0034] Furthermore, the rotation input end of the screw 406 is connected to the rotation output end of the second bevel gear 404. When the screw 406 rotates, it meshes and drives the sleeve 407 to slide laterally within the slide groove 405.

[0035] Working principle: When the drying and filtering equipment needs to be installed, pull the pull plate 309 to both sides to slide it in the front groove 308, which drives the rear clamping plate 304 to slide into the inner groove 303, compressing and contracting the telescopic rod 306 and spring 307, inserting the insertion box 302 into the slot 301. Release the pulling force on the pull plate 309, and the telescopic rod 306 and spring 307 push the clamping plate 304 outward to insert it into the aligned clamping slot 305, thus completing the quick installation and fixing of the drying filter 310. Control the motor 403 to drive the first bevel gear 402 connected to it to rotate, which meshes and drives the second bevel gears 404 on both sides to rotate, which drives the screw 406 connected to it to rotate, which meshes and drives the sleeve plate 407 to slide laterally in the sliding groove 405. With the limiting plate 409 embedded under the fiber of the limiting groove 408, it drives the upper two clamping plates 410 to move towards each other or away from each other to adjust the clamping distance, thereby stably fixing the object to be detected by the gas chromatograph for stable detection.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying and filtering device for a gas chromatograph, characterized in that: It includes a chromatograph (1), a sump (2) located in the center of the chromatograph (1), a filter assembly located on the upper side wall of the sump (2), and a clamping assembly located on the lower side wall of the sump (2). The filter assembly includes a slot (301) opened on the upper side of the empty slot (2), a box (302) is detachably inserted inside the slot (301), an inner groove (303) is opened on both sides of the box (302), a card plate (304) is movably arranged inside the inner groove (303), a card slot (305) is opened on both sides of the slot (301) to cooperate with the card plate (304), and a dryer filter (310) is arranged on the lower external side of the box (302). The clamping assembly includes a central groove (401) at the center of the lower end of the slot (2), a first bevel gear (402) is provided on the inner wall of the front end of the central groove (401), a motor (403) is connected to the front end of the first bevel gear (402), and second bevel gears (404) are provided on both sides of the central groove (401) to cooperate with the first bevel gear (402).

2. The drying and filtering device for a gas chromatograph according to claim 1, characterized in that: The other end of the card plate (304) is provided with a telescopic rod (306), and a spring (307) is fitted on the outer wall of the telescopic rod (306).

3. The drying and filtering device for a gas chromatograph according to claim 2, characterized in that: The inner groove (303) has a front groove (308) on its front side wall, and the front end of the card plate (304) is provided with a pull plate (309) that cooperates with the front groove (308).

4. The drying and filtering device for a gas chromatograph according to claim 1, characterized in that: The central groove (401) has sliding grooves (405) on both sides. A screw (406) is installed inside the sliding groove (405). A sleeve plate (407) is fitted on the outer wall of the screw (406).

5. The drying and filtering device for a gas chromatograph according to claim 4, characterized in that: A limiting groove (408) is provided on the rear side of the slide (405), and a limiting plate (409) is provided on the rear side of the sleeve (407) to cooperate with the limiting groove (408).

6. The drying and filtering device for a gas chromatograph according to claim 4, characterized in that: A clamping plate (410) is fitted on the upper surface of the sleeve (407).

7. The drying and filtering device for a gas chromatograph according to claim 4, characterized in that: The rotation input end of the screw (406) is connected to the rotation output end of the second bevel gear (404).

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