Gas chromatograph with limiting mechanism

Abstract

The utility model belongs to the technical field of gas chromatographs, in particular to a gas chromatograph with a limiting mechanism, which comprises a chromatograph host, a support component and a limiting component, the chromatograph host comprises a casing, a detection column, an object placing table, a control panel and a first clamping groove, the detection column is arranged at the top of the casing, the object placing table is arranged at the lower end of the detection column, and the control panel is arranged in the first clamping groove. A control panel is arranged on the front side of the machine shell, and first clamping grooves are formed in the centers of the left side wall and the right side wall of the machine shell. The supporting assembly is arranged at the bottom of the machine shell and comprises a base, a containing groove, grooves and a double-end lead screw, the containing groove connected with the machine shell is formed in the top of the base, the grooves opposite to the first clamping grooves are formed in the left side wall and the right side wall of the containing groove, and the double-end lead screw is connected between the grooves in the two sides in a penetrating mode; the limiting assembly is arranged between the chromatograph host and the supporting assembly, so that the connection stability is improved, and loosening and falling are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas chromatographs, and specifically relates to a gas chromatograph with a limiting mechanism. Background Technique

[0002] A gas chromatograph is an instrument that uses chromatographic separation technology and detection technology to qualitatively and quantitatively analyze complex mixtures of multiple components. According to the usage requirements, the sizes of gas chromatographs vary. Although a gas chromatograph with a smaller volume is convenient to carry, it is mainly supported by the bottom of the instrument, so the stability of the gas chromatograph is poor.

[0003] At present, a card slot is opened on the base of the chromatograph, and the chromatograph is directly placed on the card slot. There is no limiting structure between the card slot and the chromatograph. During transportation, bumps will cause the chromatograph to bounce off the card slot. For this reason, this application proposes a gas chromatograph with a limiting mechanism. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in the existing gas chromatograph with a limiting mechanism, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a gas chromatograph with a limiting mechanism, which sets a limiting component between the chromatograph main body and the support component to improve the connection stability and avoid loosening and falling. To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0007] A gas chromatograph with a limiting mechanism, which includes:

[0008] A chromatograph main body, including a machine shell, a detection column, a placement table, a control panel and a first card slot. The detection column is arranged on the top of the machine shell, the placement table is arranged at the lower end of the detection column, the control panel is arranged on the front side of the machine shell, and the first card slots are arranged at the centers of the left and right side walls of the machine shell;

[0009] A support component, arranged at the bottom of the machine shell. The support component includes a base, a placement groove, a groove and a double-headed lead screw. The placement groove connected to the machine shell is arranged on the top of the base. Grooves opposite to the first card slots are opened on the left and right side walls of the placement groove, and the double-headed lead screw is connected through between the two grooves;

[0010] The limiting component is connected to both ends of the double-headed lead screw. The limiting component includes a movable block, a threaded hole, a plug post, a support spring, a support block, a jack, and a support clamping block. The movable block is fitted into the groove. A threaded hole for connecting with the double-headed lead screw is arranged at the center of the movable block. Plug posts are arranged on both sides of the top of the movable block. A support spring is arranged outside the plug posts. A jack for connecting with the plug post is opened on the support block. A support clamping block fitted into the first card slot is arranged on the side of the top end of the support block.

[0011] As a preferred scheme of a gas chromatograph with a limiting mechanism according to the present invention, wherein: second card slots are arranged on both sides of the left and right side walls of the machine shell. Baffles are arranged outside the second card slots. Sliding grooves are opened at both ends of the inner side of the groove. Empty slots are opened at the ends of the sliding grooves. A sliding mechanism connected to the second card slot is arranged in the sliding groove.

[0012] As a preferred scheme of a gas chromatograph with a limiting mechanism according to the present invention, wherein: the sliding mechanism includes a sliding rod, a slope, an L-shaped clamping block, and a reset spring. The sliding rod is connected to the sliding groove. A slope is arranged at one end of the sliding rod located in the groove. An L-shaped clamping block is arranged at one end of the sliding rod located in the empty slot. The L-shaped clamping block corresponds to the second card slot. A reset spring is connected between the L-shaped clamping block and the empty slot.

[0013] As a preferred scheme of a gas chromatograph with a limiting mechanism according to the present invention, wherein: a track groove is opened on the side of the detection column. A sliding cover is slidably connected to the track groove.

[0014] As a preferred scheme of a gas chromatograph with a limiting mechanism according to the present invention, wherein: the lower end of the support spring is fixed to the top of the movable block, and the upper end of the support spring is fixed to the bottom of the support block.

[0015] As a preferred scheme of a gas chromatograph with a limiting mechanism according to the present invention, wherein: a bevel edge is arranged at one end of the support clamping block inserted into the first card slot.

[0016] As a preferred scheme of a gas chromatograph with a limiting mechanism according to the present invention, wherein: a rotating handle is arranged at the outer end of the double-headed lead screw. Anti-slip convex lines are arranged outside the rotating handle.

[0017] Compared with the prior art: In the present invention, a sample is placed on the placement table for detection. During use, the support component is used to support the chromatograph main body, and a limiting mechanism is arranged between the support component and the chromatograph main body. By rotating the double-headed lead screw to drive the limiting component to move, the limiting component is clamped on the chromatograph main body, and the limiting component has a buffering function and can buffer and protect the chromatograph main body. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0019] Figure 1 is the axonometric structure schematic diagram of the present utility model;

[0020] Figure 2 is the structure schematic diagram of the main body of the chromatograph of the present utility model;

[0021] Figure 3 is the bottom view structure schematic diagram of the main body of the chromatograph of the present utility model;

[0022] Figure 4 is the structure schematic diagram of the support assembly of the present utility model;

[0023] Figure 5 is the structure schematic diagram of the limiting assembly of the present utility model;

[0024] Figure 6 is the structure schematic diagram of the sliding mechanism of the present utility model;

[0025] Figure 7 is the installation structure schematic diagram of the sliding mechanism of the present utility model.

[0026] In the figure: 100 chromatograph main body, 110 housing, 120 detection column, 121 track groove, 130 placement table, 140 control panel, 150 first card slot, 160 second card slot, 161 baffle, 170 sliding cover, 200 support assembly, 210 base, 220 placement groove, 230 groove, 240 double-headed screw rod, 250 sliding groove, 260 empty groove, 300 limiting assembly, 310 movable block, 311 threaded hole, 320 insertion post, 330 support spring, 340 support block, 350 insertion hole, 360 support clamping block, 400 sliding mechanism, 410 sliding rod, 420 slope, 430 L-shaped clamping block, 440 return spring. Specific Embodiments

[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below in conjunction with the drawings.

[0028] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art may make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] Secondly, the present utility model will be described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the sake of illustration, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the said schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0031] The present utility model provides a gas chromatograph with a limiting mechanism. A limiting component is provided between the chromatograph main body and the support component to improve the connection stability and avoid loosening and falling off. Please refer to Figures 1 - 7 and includes: a chromatograph main body 100, a support component 200, and a limiting component 300.

[0032] The chromatograph main body 100 includes a housing 110, a detection column 120, a placement table 130, a control panel 140, and a first card slot 150. The detection column 120 is provided at the top of the housing 110, the placement table 130 is provided at the lower end of the detection column 120, the control panel 140 is provided on the front side of the housing 110, and the first card slots 150 are provided at the centers of the left and right side walls of the housing 110;

[0033] Among them, the sample is placed on the placement table 130, the chromatograph is started through the control panel 140, and the sample is detected by using the detection column 120.

[0034] The support component 200 is provided at the bottom of the housing 110. The support component 200 includes a base 210, a placement groove 220, a groove 230, and a double-headed lead screw 240. The placement groove 220 connected to the housing 110 is provided at the top of the base 210. Grooves 230 opposite to the first card slots 150 are opened on both the left and right side walls of the placement groove 220, and the double-headed lead screw 240 is connected through between the two side grooves 230;

[0035] Among them, the base 210 is in the shape of a rectangular platform, the housing 110 is placed in the placement groove 220, and the double-headed lead screw 240 provides the power for screw-in rotation.

[0036] The limiting component 300 is connected to both ends of the double-headed lead screw 240. The limiting component 300 includes a movable block 310, a threaded hole 311, a plug post 320, a support spring 330, a support block 340, a jack 350, and a support locking block 360. The movable block 310 is fitted into the groove 230. A threaded hole 311 connected to the double-headed lead screw 240 is provided at the center of the movable block 310. Plug posts 320 are provided on both sides of the top of the movable block 310. A support spring 330 is provided outside the plug post 320. A jack 350 connected to the plug post 320 is provided on the support block 340. A support locking block 360 fitted into the first card slot 150 is provided on the side of the top end of the support block 340;

[0037] Among them, rotating the double-headed lead screw 240 drives the movable block 310 to screw in, so that the two movable blocks 310 approach the machine housing 110, thereby inserting the support locking block 360 into the first card slot 150. When there is a bump during the movement, the machine housing 110 will bounce slightly from the placement groove 220. At this time, the support spring 330 provides buffering to avoid damage to the spectrometer.

[0038] Since the support locking block 360 is located at the center of both sides of the machine housing 110, it can play a longitudinal limiting effect. However, the machine housing 110 itself will tilt when it bumps, and it is impossible to limit the side of the machine housing 110. For this reason, second card slots 160 are provided on both sides of the left and right side walls of the machine housing 110. Baffles 161 are provided outside the second card slots 160. Sliding grooves 250 are provided at both ends of the inner side of the groove 230. Empty slots 260 are provided at the ends of the sliding grooves 250. A sliding mechanism 400 connected to the second card slot 160 is provided in the sliding groove 250;

[0039] The sliding mechanism 400 is snapped into the second card slot 160 on the side to limit the side of the machine housing 110 and prevent the machine housing 110 from tilting.

[0040] Specifically, the sliding mechanism 400 includes a sliding rod 410, a slope 420, an L-shaped locking block 430, and a return spring 440. The sliding rod 410 is connected to the sliding groove 250. A slope 420 is provided at one end of the sliding rod 410 located in the groove 230. An L-shaped locking block 430 is provided at one end of the sliding rod 410 located in the empty slot 260. The L-shaped locking block 430 corresponds to the second card slot 160. A return spring 440 is connected between the L-shaped locking block 430 and the empty slot 260;

[0041] Among them, the L-shaped locking block 430 is inserted into the second card slot 160. When the movable block 310 approaches the machine housing 110, the sliding rod 410 is squeezed through the slope 420, so that the L-shaped locking block 430 slides into the second card slot 160. Finally, the L-shaped locking block 430 is snapped into the inner side of the baffle 161, and the baffle 161 limits the L-shaped locking block 430 to prevent the two ends of the machine housing 110 from tilting up.

[0042] Since the placement table 130 is an exposed structure and is prone to dust accumulation, a track groove 121 is provided on the side of the detection column 120, and a sliding cover 170 is slidably connected to the track groove 121;

[0043] The placement table 130 is closed by the sliding cover 170 to prevent dust accumulation. When in use, the sliding cover 170 is slid upward to expose the placement table 130.

[0044] Since the elastic lifting of the casing 110 will drive the support block 340 to move, to prevent the support block 340 from falling off the insertion post 320, the lower end of the support spring 330 is fixed to the top of the movable block 310, and the upper end of the support spring 330 is fixed to the bottom of the support block 340, so as to keep the support block 340 always connected to the insertion post 320.

[0045] Since the support block 340 is connected to the support spring 330, it is easy for the support block 360 to be misaligned with the first card slot 150. To facilitate the insertion of the support block 360 into the first card slot 150, a bevel edge is provided at one end of the support block 360 inserted into the first card slot 150, and the support block 360 can be inserted into the first card slot 150 by guiding with the bevel edge.

[0046] Since the double-headed lead screw 240 needs to be rotated, and it is inconvenient to rotate the cylindrical double-headed lead screw 240, a rotating handle is provided at the outer end of the double-headed lead screw 240, and anti-slip convex lines are provided on the outside of the rotating handle, and the double-headed lead screw 240 is rotated by the rotating handle.

[0047] During specific use, first rotate the double-headed lead screw 240 to move the support assembly 200 outward, so that the inside of the placement groove 220 is vacated. The casing 110 is placed on the placement groove 220 from top to bottom. When placing it downward, the second card slot 160 is installed corresponding to the L-shaped card block 430. After that, reverse the double-headed lead screw 240 to move the support assembly 200 closer to the casing 110, so that the support block 360 is inserted into the first card slot 150 for longitudinal limitation. When the movable block 310 approaches the casing 110, the slide bar 410 is squeezed through the slope 420, so that the L-shaped card block 430 slides into the second card slot 160, and finally the L-shaped card block 430 is clamped inside the baffle 161, and the L-shaped card block 430 is limited by the baffle 161. When in use, the sliding cover 170 is slid upward to expose the placement table 130. The sample is placed on the placement table 130, and the chromatograph is started through the control panel 140, and the sample is detected by the detection column 120.

[0048] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the present utility model can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A gas chromatograph with a limiting mechanism, characterized in that: include: A chromatograph mainframe (100) comprises a housing (110), a detection column (120), a storage platform (130), a control panel (140) and a first card slot (150); the detection column (120) is arranged at the top of the housing (110), the storage platform (130) is arranged at the lower end of the detection column (120), the control panel (140) is arranged at the front side of the housing (110), and the first card slot (150) is arranged at the center of the left and right side walls of the housing (110); A support assembly (200) is arranged at the bottom of the housing (110), and the support assembly (200) comprises a base (210), a placement groove (220), a groove (230) and a double-headed screw rod (240). The top of the base (210) is provided with a placement groove (220) connected to the housing (110), and the left and right side walls of the placement groove (220) are both provided with grooves (230) opposite to the first slot (150), and the double-headed screw rod (240) is connected between the grooves (230) on both sides; A limit assembly (300) is connected to both ends of the double-headed screw rod (240). The limit assembly (300) comprises a movable block (310), a screw hole (311), a plug post (320), a support spring (330), a support block (340), a socket (350) and a support block (360). The movable block (310) is engaged with the groove (230). The center of the movable block (310) is provided with a screw hole (311) connected with the double-headed screw rod (240). Plug posts (320) are provided on both sides of the top of the movable block (310). A support spring (330) is provided outside the plug post (320). The support block (340) is provided with a socket (350) connected with the plug post (320). The top side of the support block (340) is provided with a support block (360) engaged with the first slot (150).

2. A gas chromatograph with a limiting mechanism according to claim 1, characterized in that: The left and right side walls of the housing (110) are both provided with second slots (160), the outer sides of the second slots (160) are both provided with baffles (161), the inner sides of the grooves (230) are both provided with slide slots (250), the ends of the slide slots (250) are both provided with empty slots (260), and the slide slots (250) are provided with a sliding mechanism (400) connected to the second slots (160).

3. A gas chromatograph with a limiting mechanism according to claim 2, characterized in that: The sliding mechanism (400) comprises a sliding rod (410), a ramp (420), an L-shaped block (430) and a return spring (440); the sliding rod (410) is connected to the sliding groove (250); the slope (420) is arranged at one end of the sliding rod (410) located in the groove (230); the L-shaped block (430) is arranged at one end of the sliding rod (410) located in the empty groove (260); the L-shaped block (430) corresponds to the second groove (160); and the return spring (440) is connected between the L-shaped block (430) and the empty groove (260).

4. A gas chromatograph with a limiting mechanism according to claim 1, characterized in that: A track groove (121) is provided on the side of the detection column (120), and a sliding cover (170) is slidably connected to the track groove (121).

5. The gas chromatograph with a limiting mechanism according to claim 1, characterized in that: The lower end of the support spring (330) is fixed to the top of the movable block (310), and the upper end of the support spring (330) is fixed to the bottom of the support block (340).

6. A gas chromatograph with a limiting mechanism according to claim 1, characterized in that: One end of the supporting card block (360) inserted into the first card slot (150) is provided with a bevel.

7. A gas chromatograph with a limiting mechanism according to claim 1, characterized in that: The outer end of the double-ended screw rod (240) is provided with a rotating handle, and the outer portion of the rotating handle is provided with anti-slip convex patterns.

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