Hydrofluoric acid sampling device

Abstract

This invention discloses a hydrofluoric acid sampling device, including a sampler. A protective cover is fixedly connected to the outside of the sampler. The protective cover is detachably connected to at least three bend-joint rods via a connecting structure. A vertical rod is fixedly connected to the other end of each bend-joint rod. The three vertical rods are arranged in a circumferential array outside the raw material bottle, and a fixed suction cup extends downwards from each vertical rod. After sampling, the connecting structure disconnects the sampler from the vertical rods, allowing for step-by-step removal of the sampler and vertical rods from both inside and outside the raw material bottle. Even when the sampler is removed from the bottle, the external vertical rods still act as a restraint on the bottle, greatly reducing the probability of the bottle tipping over when the sampler is removed. Furthermore, by incorporating structures such as sliding sleeves, support rods, and wedge blocks, multiple horizontal connecting rods can be simultaneously disconnected from the vertical rods, resulting in higher operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically to a hydrofluoric acid sampling device. Background Technology

[0002] Hydrofluoric acid, a highly corrosive chemical, is widely used in industries such as semiconductor manufacturing and petrochemicals. Due to its extreme danger, the sampling process for hydrofluoric acid requires exceptional caution. Traditional hydrofluoric acid sampling devices typically use a direct-insertion sampling tube. However, this method is prone to causing the sampling bottle to tip over due to improper operation or contact between the tube and the bottle wall, leading to hydrofluoric acid leakage and potential safety accidents.

[0003] Furthermore, existing sampling devices incorporate an external support structure to provide support for the sampling bottle during the sampling process. While this design prevents the bottle from tipping over when the sampling tube is inserted, the external support moves upward along with the sampling tube when it is removed after sampling, causing the support to fail and posing a significant risk of the bottle tipping over. Utility Model Content

[0004] The purpose of this invention is to provide a hydrofluoric acid sampling device to solve the technical problem in the prior art where the external support fails in the second half of the sampling process because it rises synchronously with the sampling tube.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0006] A hydrofluoric acid sampling device includes a sampler, which is inserted into the inside of a raw material bottle through the bottle opening for sampling. A protective cap is fixedly connected to the outside of the sampler for sealing the bottle opening. The protective cap is detachably connected to at least three bend joint rods via a connecting structure. A vertical rod is fixedly connected to the other end of each bend joint rod. The three vertical rods are arranged in a circumferential array outside the raw material bottle, and a fixed suction cup is connected to the vertical rods extending downward.

[0007] As a preferred embodiment of this utility model, the sampler includes a material cylinder, which is coaxially fixed in the middle of the cover. The upper and lower ends of the material cylinder are respectively provided with a discharge port and a feed port. The discharge port is located above the cover, and a sampling bottle is provided outside the discharge port. A conveying auger is coaxially rotatably arranged inside the material cylinder. The main shaft of the conveying auger passes through the material cylinder and is connected to a drive source for providing rotational torque.

[0008] As a preferred embodiment of this utility model, an elastic pad for limiting the position of the raw material bottle is provided on the vertical rod.

[0009] As a preferred embodiment of this utility model, the connecting structure includes a horizontal connecting rod, one end of which is fixedly connected to the cover, and the other end is coaxially slidably fitted with a sleeve. A first magnetic attraction element is provided on the inner wall of the end of the sleeve away from the horizontal connecting rod. The sleeve is movably fitted onto the end of the bend joint rod through the first magnetic attraction element, and the sleeve slides toward the direction closer to the cover to disconnect from the bend joint rod.

[0010] As a preferred embodiment of this utility model, the sleeve is slidably disposed outside the crossbar through a first elastic reset structure. The first elastic reset structure includes a first groove formed on the crossbar, a first slider fixedly disposed on the inner wall of the sleeve, and a first spring disposed in the first groove. The first spring is fixedly connected to the first slider.

[0011] As a preferred embodiment of this utility model, a wedge-shaped block is fixedly provided on the sleeve, a pushing block is provided above the wedge-shaped block, a support rod is fixedly connected to the pushing block, the support rod is slidably provided on the material cylinder, and the support rod pushes the sleeve to slide axially toward the direction close to the protective cover by sliding downward.

[0012] As a preferred embodiment of this utility model, the material cylinder is provided with a sliding sleeve on the outside of the coaxial sliding sleeve, and multiple support rods are fixedly connected to the sliding sleeve.

[0013] As a preferred embodiment of the present invention, the sliding sleeve is slidably disposed outside the material cylinder by a second elastic reset structure. The second elastic reset structure includes a second sliding groove formed on the outer wall of the material cylinder, a second slider fixedly disposed on the inner wall of the sliding sleeve, and a second spring disposed in the second sliding groove. The second spring is fixedly connected to the second slider.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] After sampling, this invention utilizes a connecting structure to disconnect the sampler from the vertical rod, allowing for step-by-step removal of the sampler and vertical rod from both the inside and outside of the raw material bottle. Even as the sampler is removed from the bottle, the external vertical rod continues to restrain the bottle, significantly reducing the probability of the bottle tipping over during sampler removal. Furthermore, by incorporating a sliding sleeve, support rod, and wedge block, multiple horizontal connecting rods can be simultaneously disconnected from the vertical rod, resulting in even higher operational efficiency. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the sleeve of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the sliding sleeve of this utility model.

[0021] The labels in the diagram represent the following:

[0022] 1. Sampler; 2. Raw material bottle; 3. Protective cap; 4. Bent joint rod; 5. Vertical rod; 6. Fixed suction cup; 7. Material cylinder; 8. Discharge port; 9. Feed port; 10. Sampling bottle; 11. Conveying auger; 12. Main shaft; 13. Elastic pad; 14. Horizontal connecting rod; 15. Sleeve; 16. First magnetic suction component; 17. First slide groove; 18. First slider; 19. First spring; 20. Wedge block; 21. Push block; 22. Support rod; 23. Sliding sleeve; 24. Second slide groove; 25. Second slider; 26. Second spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 4 As shown, this utility model provides a hydrofluoric acid sampling device, including a sampler 1. The sampler 1 is inserted into the mouth of a raw material bottle 2 for sampling. A protective cap 3 is fixedly connected to the outside of the sampler 1 for sealing the bottle mouth. The sampler 1 includes a material cylinder 7, which is coaxially fixed in the middle of the protective cap 3. The upper and lower ends of the material cylinder 7 are respectively provided with an outlet 8 and an inlet 9. The inlet 9 at the lower end is immersed below the surface of the hydrofluoric acid liquid to inject liquid into the material cylinder 7. Then, rotating the conveying auger 11 can drive the hydrofluoric acid sample to rise until it reaches the outlet 8. The outlet 8 is located above the protective cap 3. A sampling bottle 10 is provided outside the outlet 8. The conveying auger 11 is coaxially rotatably arranged inside the material cylinder 7. The main shaft 12 of the conveying auger 11 passes through the material cylinder 7 and is connected to a drive source for providing rotational torque. The drive source can be a drive motor or manual input.

[0025] The cap 3 is detachably connected to at least three bent-angle connector rods 4 via a connecting structure. The bent-angle connector rods 4 are L-shaped, with one end connected to the cap 3 via the connecting structure, and the other end of the bent-angle connector rod 4 is fixedly connected to a vertical rod 5. The three vertical rods 5 are arranged in a circular array outside the raw material bottle 2, and the vertical rods 5 extend downwards to be connected to a fixed suction cup 6. An elastic pad 13 is provided on the vertical rod 5 to limit the position of the raw material bottle 2.

[0026] Specifically, such as Figure 1 As shown, the connecting structure includes a horizontal connecting rod 14. One end of the horizontal connecting rod 14 is fixedly connected to the cover 3, and the other end is coaxially slidably fitted with a sleeve 15. A first magnetic suction element 16 is provided on the inner wall of the end of the sleeve 15 away from the horizontal connecting rod 14. The sleeve 15 is movably fitted onto the end of the angle connector rod 4 through the first magnetic suction element 16. The end of the angle connector rod 4 can be made of metal or equipped with a second magnetic suction element for adsorption connection with the first magnetic suction element 16. When the sleeve 15 slides toward the cover 3, the sleeve 15 can be disconnected from the angle connector rod 4, so that when the sampling device is removed, the sampler 1, cover 3, horizontal connecting rod 14, etc. can be removed separately. At this time, even if the sampler 1 touches the bottle wall inside the raw material bottle 2, the bottle will not tip over due to the continuous external support of the vertical rod 5.

[0027] Furthermore, such as Figure 3 As shown, in order to facilitate the sliding operation of the sleeve 15 and its return to the initial state after sliding for repeated use, the sleeve 15 is slidably disposed outside the crossbar 14 through a first elastic reset structure. The first elastic reset structure includes a first groove 17 opened on the crossbar 14, a first slider 18 fixedly disposed on the inner wall of the sleeve 15, and a first spring 19 disposed in the first groove 17. The first spring 19 is fixedly connected to the first slider 18.

[0028] In addition, such as Figure 4 As shown, a wedge block 20 is fixedly mounted on the sleeve 15, and a pushing block 21 is mounted above the wedge block 20. A support rod 22 is fixedly connected to the pushing block 21. The support rod 22 is slidably mounted on the material cylinder 7. The support rod 22 pushes the sleeve 15 to slide axially toward the cover 3 by sliding downward. A sliding sleeve 23 is coaxially slidably mounted on the outside of the material cylinder 7, and multiple support rods 22 are fixedly connected to the sliding sleeve 23. The sliding sleeve 23 is slidably mounted on the outside of the material cylinder 7 through a second elastic reset structure. The second elastic reset structure includes a second groove 24 formed on the outer wall of the material cylinder 7, a second slider 25 fixedly mounted on the inner wall of the sliding sleeve 23, and a second spring 26 disposed in the second groove 24. The second spring 26 is fixedly connected to the second slider 25.

[0029] By sliding the sleeve 23 vertically on the cylinder 7, multiple pushing blocks 21 can be driven to slide down synchronously, pushing the sleeve 15 to move, thereby disconnecting all horizontal connecting rods 14 and vertical rods 5, thus improving operating efficiency.

[0030] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A hydrofluoric acid sampling device comprising a sampler (1), characterized in that, The sampler (1) is inserted into the inside of the raw material bottle (2) through the bottle mouth to perform sampling. The sampler (1) is fixedly connected to a cover (3) for sealing at the bottle mouth. The cover (3) is detachably connected to at least three bend joint rods (4) through a connecting structure. The other end of the bend joint rod (4) is fixedly connected to a vertical rod (5). The three vertical rods (5) are arranged in a circumferential array outside the raw material bottle (2). The vertical rods (5) extend downward and are connected to a fixed suction cup (6).

2. A hydrofluoric acid sampling device according to claim 1, wherein, The sampler (1) includes a barrel (7), which is coaxially fixed in the middle of the cover (3). The upper and lower ends of the barrel (7) are respectively provided with a discharge port (8) and a feed port (9). The discharge port (8) is located above the cover (3). A sampling bottle (10) is provided outside the discharge port (8). A conveying auger (11) is coaxially rotatably arranged inside the barrel (7). The main shaft (12) of the conveying auger (11) passes through the barrel (7) and is connected to a drive source for providing rotational torque.

3. The hydrofluoric acid sampling device according to claim 1, characterized in that, An elastic pad (13) is provided on the vertical rod (5) to limit the position of the raw material bottle (2).

4. The hydrofluoric acid sampling device according to claim 3, characterized in that, The connecting structure includes a crossbar (14), one end of which is fixedly connected to the cover (3), and the other end is coaxially slidably fitted with a sleeve (15). A first magnetic suction element (16) is provided on the inner wall of the end of the sleeve (15) away from the crossbar (14). The sleeve (15) is movably fitted onto the end of the bend joint rod (4) through the first magnetic suction element (16). The sleeve (15) slides toward the direction close to the cover (3) to disconnect from the bend joint rod (4).

5. A hydrofluoric acid sampling device according to claim 4, characterized in that, The sleeve (15) is slidably disposed outside the crossbar (14) through the first elastic reset structure. The first elastic reset structure includes a first groove (17) opened on the crossbar (14), a first slider (18) fixedly disposed on the inner wall of the sleeve (15), and a first spring (19) disposed in the first groove (17). The first spring (19) is fixedly connected to the first slider (18).

6. A hydrofluoric acid sampling device according to claim 5, characterized in that, A wedge block (20) is fixedly installed on the sleeve (15), and a push block (21) is installed above the wedge block (20). A support rod (22) is fixedly connected to the push block (21). The support rod (22) is slidably installed on the material cylinder (7). The support rod (22) pushes the sleeve (15) to slide axially toward the cover (3) by sliding downward.

7. A hydrofluoric acid sampling device according to claim 6, characterized in that, The material cylinder (7) has a coaxial sliding sleeve (23) on its outside, and multiple support rods (22) are fixedly connected to the sliding sleeve (23).

8. A hydrofluoric acid sampling device according to claim 7, characterized in that, The sliding sleeve (23) is slidably disposed outside the material cylinder (7) through the second elastic reset structure. The second elastic reset structure includes a second sliding groove (24) opened on the outer wall of the material cylinder (7), a second slider (25) fixedly disposed on the inner wall of the sliding sleeve (23), and a second spring (26) disposed in the second sliding groove (24). The second spring (26) is fixedly connected to the second slider (25).

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