Device for removing graphite pad adhered to chromatographic column nut

Abstract

The utility model discloses a graphite pad device for removing the sticky on the chromatographic column nut relates to gas chromatograph technical field, including bottom plate, connecting subassembly, upper plate and round nail fixing piece, said bottom plate is provided with the guide nail hole, the upper surface of bottom plate is provided with the fixed nut groove, the connecting subassembly is installed on the right side of bottom plate, the round nail fixing piece is installed on the upper plate, the connecting subassembly is installed on the right side of bottom plate. An upper plate is installed above the connecting assembly, and a round nail fixing piece is installed on the lower surface of the upper plate. The device for removing the graphite pad adhered to the chromatographic column nut is provided with the round nail assembly, when the graphite pad on the chromatographic column nut is removed, the upper plate is moved and rotated towards the bottom plate through the connecting assembly, so that the round nail fixing piece and the round nail assembly on the upper plate are driven to move downwards, and the round nail assembly acts on the graphite pad through a hole of the chromatographic column nut; the graphite pad is separated from the chromatographic column nut, so that the effect of removing the residual graphite pad on the chromatographic column nut is achieved, and the chromatographic column nut can be repeatedly used.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas chromatograph technical field, concretely is a kind of graphite pad device for removing stickiness on chromatographic column nut. BACKGROUND

[0002] Gas chromatograph mass spectrometer is a kind of analytical instrument combined gas chromatography and mass spectrometry technique. It utilizes the high separation capacity of gas chromatography and the high sensitivity qualitative analysis capacity of mass spectrometry, and carries out quantitative and qualitative analysis to complex sample. Gas chromatograph mass spectrometer system is usually composed of gas chromatography part, interface part and mass spectrometry part, sample is gasified and separated by capillary column, then separated components are sent into mass spectrometer to ionize and mass analyze by interface.

[0003] In the use of gas chromatograph mass spectrometer, graphite pad is often stuck in column nut when replacing chromatographic column due to column nut being screwed too tightly and the effect of thermal expansion and cold shrinkage. If graphite pad is not removed from column nut, column nut will be discarded together with graphite pad. The device of the utility model can quickly make the stuck graphite pad fall off from column nut, so as to achieve the purpose of reusing column nut, and save experimental cost.

[0004] Therefore, we propose a graphite pad device for removing stickiness on chromatographic column nut to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a graphite pad device for removing stickiness on chromatographic column nut to solve the problem that graphite pad is stuck in column nut and cannot fall off by itself when replacing chromatographic column in the current market.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a graphite pad device for removing stickiness on chromatographic column nut, comprising bottom plate, connecting assembly, upper plate and round peg fixing part, guide peg hole is formed in the bottom plate, fixed nut groove is formed in the upper surface of the bottom plate, connecting assembly is installed above the right side of the bottom plate, upper plate is installed above the connecting assembly, round peg fixing part is installed in the lower surface of the upper plate, round peg assembly is installed in the lower surface of the round peg fixing part.

[0007] Preferably, the fixed nut groove is designed in annular structure, and the center line of the guide peg hole and the center line of the fixed nut groove coincide with each other.

[0008] The above structure is adopted, when graphite pad in chromatographic column nut is removed by round peg assembly, round peg assembly can pass through guide peg hole, and guide peg hole provides moving space for round peg assembly.

[0009] Preferably, the center line of the fixed nut groove is coincided with the center line of the chromatographic column nut, and the chromatographic column nut is clamped on the fixed nut groove.

[0010] With the above structure design, when the chromatographic column nut is limited, the chromatographic column nut is directly clamped on the fixed nut groove, and the fixed nut groove limits the chromatographic column nut, so that the graphite pad in the chromatographic column nut is removed, and the chromatographic column nut cannot be tilted and deviated due to stress, so that the chromatographic column nut is more stable when the graphite pad is removed.

[0011] Preferably, the connecting assembly comprises a fixed seat, a rotating shaft, a friction block, a circular plate and a connecting strip, the fixed seat is installed above the right side of the bottom plate, the rotating shaft penetrates through the fixed seat, the friction block is sleeved on the front and rear ends of the rotating shaft, the circular plate is connected to the front and rear ends of the rotating shaft, and the connecting strip is installed between the two groups of circular plates.

[0012] With the above structure design, when the graphite pad on the chromatographic column nut is removed, the upper plate is moved and rotated to the bottom plate through the connecting assembly, so that the circular nail fixing part and the circular nail assembly on the upper plate are moved downward, and the graphite pad on the chromatographic column nut is removed through the circular nail assembly.

[0013] Preferably, the rotating shaft is rotatably connected between the fixed seat, the connecting strip is fixedly connected to the upper plate, and the friction block is located between the fixed seat and the circular plate.

[0014] With the above structure design, the friction block can increase the friction force between the fixed seat and the circular plate, and has a damping effect, so that the upper plate will not move downward and contact the bottom plate under the action of gravity when the upper plate is not stressed.

[0015] Preferably, the circular nail fixing part is fixedly connected to the upper plate, and the circular nail assembly is detachably connected to the circular nail fixing part.

[0016] With the above structure design, when the circular nail assembly is worn or damaged after long-term use, it can be detached from the circular nail fixing part for replacement, so that the device can be repeatedly used.

[0017] Preferably, the circular nail fixing part is located above the guide nail hole and the fixed nut groove, and the guide nail hole is a through hole.

[0018] With the above structure design, the circular nail assembly acts on the graphite pad through the hole of the chromatographic column nut, so that the graphite pad is separated from the chromatographic column nut, and the residual graphite pad on the chromatographic column nut is removed.

[0019] Compared with the prior art, the graphite pad device for removing the chromatographic column nut has the advantages that:

[0020] 1. The utility model discloses a round nail assembly is provided with, when the graphite pad on the chromatographic column nut is removed, the upper plate is moved to the bottom plate through the connecting assembly rotation, thereby driving the round nail fixing piece and the round nail assembly on the upper plate to move down, the round nail assembly acts on the graphite pad through the hole of chromatographic column nut, makes the graphite pad separate from chromatographic column nut, to reach the effect that the residual graphite pad on chromatographic column nut is removed, makes chromatographic column nut can be used repeatedly.

[0021] 2. The utility model discloses a friction block, the friction block can increase the friction between the fixed seat and the round plate, and the damping effect is achieved, so that the upper plate does not move down and contact the bottom plate under the action of gravity when not under stress. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the whole main view structure schematic diagram of the utility model;

[0023] Figure 2 It is the whole upside-down structure schematic diagram of the utility model;

[0024] Figure 3 It is the whole side view structure schematic diagram of the utility model;

[0025] Figure 4 It is the structure schematic diagram of the utility model when using;

[0026] Figure 5 It is the connecting assembly structure schematic diagram of the utility model.

[0027] In the drawing: 1, bottom plate; 2, guide nail hole; 3, fixed nut groove; 4, connecting assembly; 401, fixed seat; 402, pivot; 403, friction block; 404, round plate; 405, connecting strip; 5, upper plate; 6, round nail fixing piece; 7, round nail assembly. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] Please refer to Figures 1-5The utility model provides a technical scheme: a device for removing graphite pad adhered to chromatographic column nut, including bottom plate 1, guide nail hole 2, fixed nut groove 3, connecting assembly 4, fixed seat 401, pivot 402, friction block 403, round plate 404, connecting strip 405, upper plate 5, round nail fixing piece 6 and round nail assembly 7, bottom plate 1 is provided with guide nail hole 2, the upper surface of bottom plate 1 is provided with fixed nut groove 3, fixed nut groove 3 is annular structure design, and the center line of guide nail hole 2 and the center line of fixed nut groove 3 coincide with each other, when using round nail assembly 7 to remove graphite pad in chromatographic column nut, round nail assembly 7 can pass through guide nail hole 2, guide nail hole 2 provides the activity space for round nail assembly 7, the center line of fixed nut groove 3 and the center line of chromatographic column nut coincide with each other, and chromatographic column nut is clamped on fixed nut groove 3, when limiting chromatographic column nut, chromatographic column nut is clamped on fixed nut groove 3 directly, and fixed nut groove 3 plays the role of limiting chromatographic column nut, so that graphite pad in chromatographic column nut will not be tilted and deviated due to stress when removing, so that chromatographic column nut is more stable when removing graphite pad.

[0030] The right side upper portion of bottom plate 1 is provided with connecting assembly 4, connecting assembly 4 includes fixed seat 401, pivot 402, friction block 403, round plate 404 and connecting strip 405, the right side upper portion of bottom plate 1 is provided with fixed seat 401, and the pivot 402 penetrates through the fixed seat 401, the front and rear ends of pivot 402 are both sleeved with friction block 403, the front and rear ends of pivot 402 are both connected with round plate 404, and connecting strip 405 is installed between the two groups of round plates 404, when removing graphite pad on chromatographic column nut, the upper plate 5 is moved and rotated to the bottom plate 1 through the connecting assembly 4, so as to drive the round nail fixing piece 6 and the round nail assembly 7 on the upper plate 5 to move downward, the graphite pad on the chromatographic column nut is removed through the round nail assembly 7, the pivot 402 is rotationally connected between the fixed seat 401, the connecting strip 405 is fixedly connected with the upper plate 5, the friction block 403 is located between the fixed seat 401 and the round plate 404, the friction block 403 can increase the friction between the fixed seat 401 and the round plate 404, and the damping effect is achieved, so that the upper plate 5 will not move downward and contact the bottom plate 1 under the action of gravity when not stressed, the upper plate 5 is installed above the connecting assembly 4, the round nail fixing piece 6 is installed on the lower surface of the upper plate 5, the round nail assembly 7 is installed on the lower surface of the round nail fixing piece 6, the round nail fixing piece 6 is fixedly connected with the upper plate 5, the round nail assembly 7 is detachably connected with the round nail fixing piece 6, after long-time use and wear or damage, the round nail assembly 7 can be detached from the round nail fixing piece 6 for replacement, so that the device can be repeatedly used, the round nail fixing piece 6 is located above the guide nail hole 2 and the fixed nut groove 3, the guide nail hole 2 is a through hole, the round nail assembly 7 acts on the graphite pad through the hole of the chromatographic column nut, so that the graphite pad is separated from the chromatographic column nut, and the effect of removing residual graphite pad on the chromatographic column nut is achieved.

[0031] Working principle: when using the device for removing graphite gasket adhered to the chromatographic column nut, first, when removing the graphite gasket on the chromatographic column nut, directly clamp the chromatographic column nut on the fixed nut groove 3, the fixed nut groove 3 plays a limiting role on the chromatographic column nut, so that when the graphite gasket in the chromatographic column nut is removed, the chromatographic column nut will not be tilted and deviated due to stress, so that the chromatographic column nut is more stable when removing the graphite gasket, move and rotate the upper plate 5 to the bottom plate 1 through the connecting assembly 4, thereby driving the round pin fixing piece 6 and the round pin assembly 7 on the upper plate 5 to move downward, the round pin assembly 7 acts on the graphite gasket through the hole of the chromatographic column nut, so that the graphite gasket is separated from the chromatographic column nut, so as to remove the residual graphite gasket on the chromatographic column nut, so that the chromatographic column nut can be reused.

[0032] The friction block 403 can increase the friction between the fixed seat 401 and the circular plate 404, and has a damping effect, so that the upper plate 5 will not move downward and contact the bottom plate 1 under the action of gravity when not stressed, thereby completing a series of work. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for removing sticky graphite gasket on the nut of a chromatographic column, comprising a bottom plate (1), a connecting assembly (4), an upper plate (5) and a round pin fixing piece (6), characterized in that: The bottom plate (1) is provided with a nail guide hole (2), the upper surface of the bottom plate (1) is provided with a fixed nut groove (3), the right side of the upper surface of the bottom plate (1) is provided with a connecting assembly (4), the upper surface of the connecting assembly (4) is provided with an upper plate (5), the lower surface of the upper plate (5) is provided with a round nail fixing part (6), and the lower surface of the round nail fixing part (6) is provided with a round nail assembly (7).

2. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 1, characterized in that: The fixed nut groove (3) is designed in a ring shape, and the center line of the nail guide hole (2) coincides with the center line of the fixed nut groove (3).

3. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 1, characterized in that: The center line of the fixed nut groove (3) coincides with the center line of the chromatographic column nut, and the chromatographic column nut is clamped on the fixed nut groove (3).

4. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 1, characterized in that: The connecting assembly (4) comprises a fixed seat (401), a rotating shaft (402), a friction block (403), a circular plate (404) and a connecting strip (405), the right side of the upper surface of the bottom plate (1) is provided with the fixed seat (401), the rotating shaft (402) penetrates through the fixed seat (401), the front and rear ends of the rotating shaft (402) are both sleeved with the friction block (403), the front and rear ends of the rotating shaft (402) are both connected with the circular plate (404), and the connecting strip (405) is arranged between the two groups of circular plates (404).

5. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 4, characterized in that: The rotating shaft (402) is rotatably connected with the fixed seat (401).

6. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 4, characterized in that: The connecting strip (405) is fixedly connected with the upper plate (5).

7. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 4, characterized in that: The friction block (403) is located between the fixed seat (401) and the circular plate (404).

8. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 1, characterized in that: The round nail fixing part (6) is fixedly connected with the upper plate (5).

9. The device for removing the graphite gasket adhered to the chromatographic column nut according to claim 1, characterized in that: The round nail assembly (7) is detachably connected with the round nail fixing part (6).

10. The device for removing stuck graphite gaskets from chromatography column nuts of claim 1, wherein: The round nail fixing part (6) is located above the nail guide hole (2) and the fixed nut groove (3), and the nail guide hole (2) is a through hole.

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