Hydrofluoric acid dust-free sampling device

Abstract

The utility model relates to a dust-free hydrofluoric acid sampling device in the technical field of hydrofluoric acid sampling devices, which is characterized in that a sampling barrel is fixedly mounted at the top end of a sampling tube, and an extraction component for sampling hydrofluoric acid in a storage bottle is arranged in a barrel cavity of the sampling barrel; a fixing assembly for locking the extraction assembly is arranged in a barrel cavity of the sampling barrel; a first locking assembly and a second locking assembly which are used for locking the storage bottle are arranged in a cover body of the sealing cover. The threaded connection between the bolt and the sealing cover is driven by the hand wheel, so that the locking plate can be controlled to fix the sealing cover on the bottle opening of the storage bottle, and then the moving rod is lifted upwards through the operation plate, so that the sealing block can be controlled to move upwards along the sampling barrel, and hydrofluoric acid in the storage bottle can be extracted into the sampling tube. And the movable rod is locked through the matching of the fixing assembly and the locking hole, so that the hydrofluoric acid in the sampling tube is prevented from spilling out due to the movement of the movable rod.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrofluoric acid sampling devices, in particular to a hydrofluoric acid dust-free sampling device. Background Art

[0002] Hydrofluoric acid is an aqueous solution of hydrogen fluoride gas, a clear, colorless, fuming, corrosive liquid with a strong pungent odor. In the chip, liquid crystal panel and other industries, the manufacturing process is increasingly demanding refinement and high performance, and it is necessary to use hydrofluoric acid to corrode the chips and liquid crystal panels, so it is necessary to sample hydrofluoric acid. However, when sampling hydrofluoric acid, the existing hydrofluoric acid sampling devices mostly use open sampling, do not control the environment of the sampling space, and do not perform sealing treatment, which can easily cause hydrofluoric acid to volatilize and cause safety risks.

[0003] For example, a closed hydrofluoric acid sampling device with Chinese patent application number CN202211123017.7, the connection mechanism includes a sealing cover arranged at the connection port of the storage bottle, a connection component arranged on the sealing cover, and a cleaning component arranged on the connection component; the connection component includes an infusion piece with one end passing through the bottom wall of the storage slot opened in the storage bottle and the other end passing through the top of the sealing cover, and a connection piece arranged above the sealing cover and connected to the infusion piece; the cleaning component includes a cleaning block that can be connected to the cleaning component through the connection slot, and a cleaning component connected to the cleaning block. It has the following technical defects:

[0004] When using a sampling device to sample hydrofluoric acid, the sampling device needs to be screwed into the sampling bottle and fixed on the sampling bottle. In the process of screwing the sampling device into and tightening it on the sampling bottle, the sampling bottle may easily tip over, causing the hydrofluoric acid in the sampling bottle to spill and injure people. Utility Model Content

[0005] In order to solve the problem raised in the above background technology that when using a sampling device to sample hydrofluoric acid, since the sampling device needs to be screwed into the sampling bottle and fixed on the sampling bottle, the sampling bottle is easily tipped over during the process of screwing the sampling device into and tightening it on the sampling bottle, causing the hydrofluoric acid in the sampling bottle to spill and injure people, the utility model provides the following technical solutions:

[0006] A dust-free sampling device for hydrofluoric acid comprises a storage bottle for storing hydrofluoric acid, a sampling device for sampling the hydrofluoric acid in the storage bottle is arranged above the storage bottle, a sealing cover for fixing the sampling device on the storage bottle is arranged at the top of the storage bottle, and a locking device for locking the sealing cover on the storage bottle is arranged in the cover body of the sealing cover.

[0007] The sampling device comprises a sampling tube inserted into the storage bottle for sampling hydrofluoric acid, a sampling barrel is fixedly installed on the top of the sampling tube, an extraction component for sampling the hydrofluoric acid in the storage bottle is arranged in the barrel cavity of the sampling barrel, and a fixing component for locking the extraction component is arranged in the barrel cavity of the sampling barrel;

[0008] The cover body of the sealing cover is provided with a locking assembly 1 and a locking assembly 2 for locking the storage bottle, and the locking assembly 1 and the locking assembly 2 are symmetrically distributed in the sealing cover.

[0009] Furthermore, the extraction assembly includes a sealing block disposed in the sampling barrel for extracting the hydrofluoric acid in the storage bottle into the sampling tube, and a sealing strip for sealing with the inner cavity of the sampling barrel is disposed on the outer side of the sealing block.

[0010] Furthermore, a moving rod for driving the sealing block to move up and down is fixedly installed on the top of the sealing block, an operating plate for driving the moving rod to move up and down is fixedly installed on the top of the moving rod, and a locking hole for cooperating with a fixing component to lock and fix the moving rod is opened on the rod body of the moving rod.

[0011] Furthermore, the fixing assembly comprises a fixing plate arranged in the sampling tube, a locking rod for left-right movement is arranged on the plate body of the fixing plate, and the locking rod can be inserted into the cavity of the locking hole.

[0012] Furthermore, a moving plate for driving the locking rod to move left and right is fixedly mounted on one end of the locking rod away from the operating plate, and a spring for resetting the moving plate is fixedly mounted on one end of the moving plate away from the locking rod.

[0013] Furthermore, the locking assembly includes a locking plate arranged in the sealing cover for locking and fixing the sealing cover, and the locking plate is movably connected to one end away from the sampling tube with a bolt for driving the locking plate to move left and right, and the right end of the bolt is fixedly installed with a handwheel for driving the bolt to rotate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By arranging the sampling device and the locking device, when it is necessary to sample the hydrofluoric acid in the storage bottle, the sealing cover can be covered on the bottle mouth of the storage bottle, and then the threaded connection between the bolt and the sealing cover can be driven by the hand wheel to control the locking plate to approach the bottle mouth of the storage bottle and fix the sealing cover on the bottle mouth of the storage bottle. When the moving rod is pulled up and down by the operating panel, the sealing block can be controlled to move upward along the sampling tube, and the hydrofluoric acid in the storage bottle can be extracted into the sampling tube. Then, the moving rod is locked by the cooperation of the fixing component and the locking hole to prevent the movement of the moving rod from causing the hydrofluoric acid in the sampling tube to spill out. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the storage bottle of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sampling device of the utility model;

[0019] Figure 4 This is a diagram showing the matching of the extraction component and the fixing component of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the locking device of the utility model.

[0021] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0022] 100-storage bottles;

[0023] 200-sealing cover;

[0024] 300-sampling device, 310-extraction assembly, 311-operation plate, 312-moving rod, 313-locking hole, 314-sealing block, 315-sealing strip, 320-fixing assembly, 321-fixing plate, 322-locking rod, 323-moving plate, 324-spring, 330-sampling cylinder, 340-sampling tube;

[0025] 400-locking device, 410-locking assembly one, 411-hand wheel, 412-bolt, 413-locking plate, 420-locking assembly two. DETAILED DESCRIPTION

[0026] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0027] See also Figure 1-Figure 5 The utility model provides a dust-free sampling device for hydrofluoric acid.

[0028] The invention comprises a storage bottle 100 for storing hydrofluoric acid, a sampling device 300 for sampling the hydrofluoric acid in the storage bottle 100 is arranged above the storage bottle 100, a sealing cover 200 for fixing the sampling device 300 on the storage bottle 100 is arranged at the top of the storage bottle 100, and a locking device 400 for locking the sealing cover 200 on the storage bottle 100 is arranged in the cover body of the sealing cover 200.

[0029] The sampling device 300 includes a sampling tube 340 inserted into the storage bottle 100 for sampling hydrofluoric acid, a sampling barrel 330 is fixedly installed at the top of the sampling tube 340, and operation panels are fixedly installed on both sides of the top of the sampling barrel 330, so that the operator can sample the hydrofluoric acid in the storage bottle 100 through the sampling tube 340 through the extraction component 310; the barrel cavity of the sampling barrel 330 is provided with an extraction component 310 for sampling the hydrofluoric acid in the storage bottle 100, and the barrel cavity of the sampling barrel 330 is provided with a fixing component 320 for locking the extraction component 310; so that when it is necessary to extract a hydrofluoric acid sample from the storage bottle 100, the sampling component 310 can be moved upward in the sampling barrel 330 to extract the hydrofluoric acid into the sampling tube 340, and the sampling component 310 can be fixed under the locking of the fixing component 320.

[0030] The extraction component 310 includes a sealing block 314 arranged in the sampling barrel 330 for extracting the hydrofluoric acid in the storage bottle 100 into the sampling tube 340, and the sealing block 314 is cylindrical. A sealing strip 315 for sealing with the inner cavity of the sampling barrel 330 is arranged on the outer side of the sealing block 314, and there are two sealing strips 315, which are symmetrically distributed on the outer side of the sealing block 314 in the upper and lower directions. At the same time, the sealing block 314 can increase the friction force of the sampling barrel 330 through the two sealing strips 315, so as to extract the hydrofluoric acid in the storage bottle 100 into the sampling tube 340 through the friction force between the sealing block 314 and the sampling barrel 330.

[0031] The top of the sealing block 314 is fixedly installed with a moving rod 312 for driving the sealing block 314 to move up and down, and the moving rod 312 passes through the top of the storage bottle 100; the top of the moving rod 312 is fixedly installed with an operating plate 311 for driving the moving rod 312 to move up and down, and the rod body of the moving rod 312 is provided with a locking hole 313 for cooperating with the fixing assembly 320 to lock and fix the moving rod 312, and there are a plurality of locking holes 313, and the plurality of locking holes 313 are arranged in a linear array. The movable rod 312 is arranged on the rod body of the movable rod 312; therefore, when the hydrofluoric acid in the storage bottle 100 needs to be sampled, the movable rod 312 can be pulled up and down by the operating panel 311, and the sealing block 314 can be controlled to move upward along the sampling tube 330, so that the hydrofluoric acid in the storage bottle 100 can be extracted into the sampling tube 340, and then the movable rod 312 can be locked by the cooperation of the fixing component 320 and the locking hole 313 to prevent the movable rod 312 from moving and causing the hydrofluoric acid in the sampling tube 340 to spill out.

[0032] The fixing assembly 320 includes a fixing plate 321 disposed in the sampling tube 330, a locking rod 322 for left-right movement is disposed on the plate body of the fixing plate 321, and the locking rod 322 can be inserted into the cavity of the locking hole 313, and a moving plate 323 for driving the locking rod 322 to move left-right is fixedly installed at one end of the locking rod 322 away from the operating plate 311, and a spring 324 for resetting the moving plate 323 is fixedly installed at the moving end of the moving plate 323 away from the locking rod 322; When sampling the hydrofluoric acid in the storage bottle 100, the movable rod 312 can be pulled up and down through the operating panel 311, and the sealing block 314 can be controlled to move upward along the sampling tube 330, so that the hydrofluoric acid in the storage bottle 100 can be extracted into the sampling tube 340. At this time, the cooperation between the spring 324, the movable plate 323 and the movable rod 312 can insert the movable rod 312 into the locking hole 313, so as to prevent the movement of the movable rod 312 and cause the hydrofluoric acid in the sampling tube 340 to spill out.

[0033] A locking assembly 1 410 and a locking assembly 2 420 for locking the storage bottle 100 are disposed in the cover body of the sealing cover 200 , and the locking assembly 1 410 and the locking assembly 2 420 are symmetrically distributed in the sealing cover 200 .

[0034] The locking assembly 410 includes a locking plate 413 arranged in the sealing cover 200 for locking and fixing the sealing cover 200. The end of the locking plate 413 away from the sampling tube 340 is movably connected with a bolt 412 for driving the locking plate 413 to move left and right. The right end of the bolt 412 is fixedly installed with a handwheel 411 for driving the bolt 412 to rotate. When it is necessary to sample the hydrofluoric acid in the storage bottle 100, the sealing cover 200 can be covered on the bottle mouth of the storage bottle 100, and the threaded connection between the bolt 412 and the sealing cover 200 is driven by the handwheel 411, so that the locking plate 413 can be controlled to approach the bottle mouth of the storage bottle 100, and the sealing cover 200 can be fixed on the bottle mouth of the storage bottle 100, so that the sampling device 300 can extract the hydrofluoric acid in the storage bottle 100 into the sampling tube 340.

[0035] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A dust-free sampling device for hydrofluoric acid, comprising a storage bottle (100) for storing hydrofluoric acid, characterized in that: A sampling device (300) for sampling the hydrofluoric acid in the storage bottle (100) is arranged above the storage bottle (100); a sealing cover (200) for fixing the sampling device (300) on the storage bottle (100) is arranged at the top of the storage bottle (100); a locking device (400) for locking the sealing cover (200) on the storage bottle (100) is arranged inside the cover body of the sealing cover (200); The sampling device (300) comprises a sampling tube (340) inserted into a storage bottle (100) for sampling hydrofluoric acid, a sampling barrel (330) being fixedly mounted on the top end of the sampling tube (340), an extraction component (310) for sampling hydrofluoric acid in the storage bottle (100) being arranged in the barrel cavity of the sampling barrel (330), and a fixing component (320) for locking the extraction component (310) being arranged in the barrel cavity of the sampling barrel (330); A locking assembly 1 (410) and a locking assembly 2 (420) for locking the storage bottle (100) are arranged in the cover body of the sealing cover (200), and the locking assembly 1 (410) and the locking assembly 2 (420) are symmetrically distributed in the sealing cover (200).

2. A dust-free sampling device for hydrofluoric acid according to claim 1, characterized in that: The extraction assembly (310) comprises a sealing block (314) disposed in a sampling barrel (330) for extracting hydrofluoric acid in a storage bottle (100) into a sampling tube (340), and a sealing strip (315) for sealing with the inner cavity of the sampling barrel (330) is disposed on the outer side of the sealing block (314).

3. A dust-free sampling device for hydrofluoric acid according to claim 2, characterized in that: A moving rod (312) for driving the sealing block (314) to move up and down is fixedly installed at the top end of the sealing block (314), an operating plate (311) for driving the moving rod (312) to move up and down is fixedly installed at the top end of the moving rod (312), and a locking hole (313) for cooperating with a fixing assembly (320) to lock and fix the moving rod (312) is provided on the rod body of the moving rod (312).

4. A dust-free sampling device for hydrofluoric acid according to claim 3, characterized in that: The fixing assembly (320) comprises a fixing plate (321) arranged in the sampling tube (330), and a locking rod (322) for left-right movement is arranged on the plate body of the fixing plate (321), and the locking rod (322) can be inserted into the cavity of the locking hole (313).

5. A dust-free sampling device for hydrofluoric acid according to claim 4, characterized in that: A moving plate (323) for driving the locking rod (322) to move left and right is fixedly mounted on one end of the locking rod (322) away from the operating plate (311), and a spring (324) for resetting the moving plate (323) is fixedly mounted on one end of the moving plate (323) away from the locking rod (322).

6. A dust-free sampling device for hydrofluoric acid according to claim 1, characterized in that: The locking assembly 1 (410) includes a locking plate (413) disposed inside the sealing cover (200) for locking and fixing the sealing cover (200); one end of the locking plate (413) away from the sampling tube (340) is movably connected to a bolt (412) for driving the locking plate (413) to move left and right; a hand wheel (411) for driving the bolt (412) to rotate is fixedly mounted on the right end of the bolt (412).

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