A device for non-contact use of volatile or strongly irritating compounds

Abstract

The utility model relates to a kind of non-contact using device for volatile or strong irritant compound, comprising liquid storage bottle (1), connecting block (3), liquid outlet pipe (5) and the like. Connecting block (3) contains upper and lower openings and internal cavity, lower opening is closely connected with the mouth of liquid storage bottle (1), one end of liquid outlet pipe (5) is inserted into liquid storage bottle (1) through connecting block (3), the other end is communicated with atmosphere, and there is air inlet passage (7) in side part, one end is connected with air inlet head (6), and the other end is communicated with the inner cavity of liquid storage bottle (1). Air compressor or cylinder (4) is connected with air outlet pipe (4.1) through air regulating valve (4.2), and air outlet pipe (4.1) is further connected with air inlet head (6). The device can ensure personnel health and safety, realize quantitative use, is simple and easy to operate, has wide application range, reduces environmental pollution risk, and overcomes the defects of prior art.

Description

Technical Field

[0001] This utility model belongs to the technical field, and in particular to the technical field of a non-contact application device for volatile or highly irritating compounds. Background Technology

[0002] In the vigorous development of laboratory scientific research, liquid chemical reagents such as thionyl chloride, concentrated hydrochloric acid, ammonia, and pyridine have become key chemicals frequently used in laboratories due to their unique chemical properties. However, the volatility, irritant properties, and corrosiveness of these reagents are like "health killers" hidden in the experimental process, posing a significant and undeniable threat to the health of laboratory personnel.

[0003] Thionyl chloride appears as a colorless or pale yellow liquid with a pungent, suffocating odor. Its physical properties are unique, with a melting point as low as -105°C and a boiling point of 79°C. Under humid conditions, it readily undergoes hydrolysis, producing sulfur dioxide and hydrogen chloride. This substance is extremely acidic and reacts violently with water, releasing highly corrosive gases. These gases act like invisible blades, fiercely attacking the eyes, skin, mucous membranes, and respiratory tract of laboratory personnel, causing severe irritation. If inhaled, it can easily trigger bronchospasm, edema, and other emergencies, leading to asphyxiation and death. If ingested or absorbed through the skin, it can cause burns. Symptoms of poisoning are varied, including burning sensation, cough, wheezing, dizziness, laryngitis, shortness of breath, headache, nausea, and vomiting, severely impacting the health and work of laboratory personnel.

[0004] Concentrated hydrochloric acid, a highly volatile and strong acid, has a pungent and irritating odor. Like a "metal corrosion expert," it can strongly corrode metals and release hydrogen gas. Its volatile gases act like invisible "health assassins," severely irritating the nasal mucosa, conjunctiva, and respiratory tract, potentially causing a range of serious symptoms such as corneal opacity, hoarseness, a feeling of suffocation, chest pain, rhinitis, coughing, and blood in sputum. Close contact with the skin can cause intense pain and chemical burns, inflicting great suffering on laboratory personnel.

[0005] Ammonia is a volatile alkaline solution. The irritating gases it releases act like "respiratory invaders," causing symptoms such as conjunctival congestion, tearing, sore throat, cough, and difficulty breathing. Long-term exposure to ammonia can cause chronic damage to the respiratory system, potentially leading to diseases such as chronic bronchitis. During laboratory operations, if ammonia is not diluted or transferred in a well-ventilated fume hood, or if a professional respirator is not worn, laboratory personnel are highly susceptible to inhaling excessive amounts of ammonia, resulting in acute poisoning and endangering their lives.

[0006] Pyridine, an organic base, has an unbearably strong and pungent odor. Prolonged exposure to pyridine may have toxic effects on the human reproductive system, interfering with normal physiological functions. In laboratory environments, if the exposure time of laboratory personnel to pyridine is not strictly limited, or if appropriate protective equipment such as gloves is not provided, the risk of pyridine exposure to laboratory personnel will increase significantly, posing a potential threat to their health.

[0007] Furthermore, the process of handling these chemical reagents is extremely cumbersome and complex to ensure the health and safety of laboratory personnel and prevent them from being harmed by these reagents. This is especially true when quantitatively dispensing these reagents, which presents numerous difficulties and inconveniences. Existing methods are not only inefficient but also struggle to accurately control the dosage, while increasing the laboratory personnel's contact time and the associated risks. Therefore, to effectively address these prominent shortcomings of existing technologies, there is an urgent need to invent a novel device. This device should possess the ability to accurately dispense chemical reagents quantitatively, while providing reliable safety protection for laboratory personnel, effectively overcoming potential health threats during use, and providing strong support for the smooth conduct of laboratory research. Summary of the Invention

[0008] This invention aims to solve the aforementioned problems and defects by providing a non-contact device for the use of volatile or highly irritating compounds.

[0009] This utility model is achieved using the following technical solution.

[0010] A non-contact application device for volatile or highly irritating compounds, the device comprising a storage bottle 1, a connecting block 3, a liquid outlet pipe 5, an air inlet head 6, an air inlet channel 7, an air compressor or gas cylinder 4, an air outlet pipe 4.1, and an air regulating valve 4.2;

[0011] The connecting block 3 includes an upper opening 3.1, a lower opening 3.2, and an internal cavity 3.3;

[0012] The connecting block 3 is fixedly and tightly connected to the mouth of the liquid storage bottle 1 through the lower opening 3.2;

[0013] One end of the outlet pipe 5 passes through the upper opening 3.1, the internal cavity 3.3, and the lower opening 3.2 sequentially from top to bottom and is inserted into the inside of the storage bottle 1; the other end of the outlet pipe 5 is connected to the atmosphere.

[0014] The liquid outlet pipe 5 is provided with an air inlet channel 7 on its side; one end of the air inlet channel 7 is fixedly connected to the air inlet head 6; the other end of the air inlet channel 7 is connected to the inner cavity of the liquid storage bottle 1.

[0015] The air compressor or gas cylinder 4 is connected to the air outlet pipe 4.1 via the air regulating valve 4.2; the air outlet pipe 4.1 is connected to the air inlet head 6.

[0016] The non-contact application device for volatile or highly irritating compounds invented in this invention has many significant advantages and effectively overcomes many shortcomings of the existing technology:

[0017] 1) Ensuring personnel health and safety: The device enables non-contact operation, so when handling volatile or highly irritating compounds, the experimenter does not need to directly contact the reagents, thus avoiding the irritation and damage to the eyes, skin, mucous membranes and respiratory tract caused by these compounds. This greatly reduces the health risks of poisoning, burns and other injuries, and provides the experimenter with a safe and reliable working environment.

[0018] 2) Quantitative dispensing: This device controls the rate at which the chemical reagent flows out of the outlet tube (e.g., 1 or 2 drops per second) by controlling the knob of the gas regulating valve. This allows for precise control of the amount of compound dispensed according to experimental requirements, avoiding experimental errors caused by inaccurate dispensing, improving the accuracy and repeatability of experimental results, and providing strong support for the smooth progress of scientific research.

[0019] 3) Simple and efficient operation: Compared with the cumbersome and complicated operation methods of existing technologies, this device has a simple and reasonable design and a simple and easy-to-understand operation process. Experimenters can quickly get started and easily complete the operation of compound handling, which greatly saves operation time and improves experimental efficiency, especially suitable for large-scale or frequent experimental operation scenarios.

[0020] 4) Wide range of applications: This device has a wide range of applications. It is not only suitable for common volatile or highly irritating compounds such as thionyl chloride, concentrated hydrochloric acid, ammonia, and pyridine, but can also be extended to the use of other chemical reagents with similar properties, providing a unified solution for the safe use of various chemical reagents in the laboratory.

[0021] 5) Reduced environmental pollution risk: Because the device enables non-contact operation and precise dispensing, it reduces the volatilization and leakage of compounds, effectively reducing pollution to the laboratory environment. This aligns with the green and environmentally friendly experimental concept and is beneficial to protecting the ecological environment and the health of laboratory personnel.

[0022] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0025] Figure 3 This is a cross-sectional view of the present invention from another angle.

[0026] Figure 4 This is an enlarged view of the connecting block and its connecting components of this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the steel cylinder and its connecting parts according to this utility model.

[0028] The numbers in the diagram are as follows: 1-Liquid storage bottle, 2-Fixing hole, 3-Connecting block, 3.1-Upper opening, 3.2-Lower opening, 3.3-Internal cavity, 3.4-Pressure plate, 3.5-Perforation, 3.6-Bolt hole, 4-Air compressor or cylinder, 4.1-Outlet pipe, 4.2-Air regulating valve, 5-Liquid outlet pipe, 6-Inlet head, 7-Inlet channel, 7.1-Inlet expansion section, 8-Extension hose. Detailed Implementation

[0029] The following embodiments are only a part of the technical solution of this utility model, and are not intended to limit all the technical solutions of this utility model. The embodiments of this utility model are provided to further explain and illustrate the details of the technical solution of this utility model.

[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown.

[0031] A non-contact application device for volatile or highly irritating compounds, the device comprising a storage bottle 1, a connecting block 3, a liquid outlet pipe 5, an air inlet head 6, an air inlet channel 7, an air compressor or gas cylinder 4, an air outlet pipe 4.1, and an air regulating valve 4.2;

[0032] The connecting block 3 includes an upper opening 3.1, a lower opening 3.2, and an internal cavity 3.3; the structure of the connecting block 3 can be realized by 3D printing.

[0033] The connecting block 3 is fixedly and tightly connected to the mouth of the liquid storage bottle 1 through the lower opening 3.2;

[0034] One end of the outlet pipe 5 passes through the upper opening 3.1, the internal cavity 3.3, and the lower opening 3.2 sequentially from top to bottom and is inserted into the inside of the storage bottle 1; the other end of the outlet pipe 5 is connected to the atmosphere.

[0035] The liquid outlet pipe 5 is provided with an air inlet channel 7 on its side; one end of the air inlet channel 7 is fixedly connected to the air inlet head 6; the other end of the air inlet channel 7 is connected to the inner cavity of the liquid storage bottle 1.

[0036] The air compressor or gas cylinder 4 is connected to the air outlet pipe 4.1 via the air regulating valve 4.2; the air outlet pipe 4.1 is connected to the air inlet head 6.

[0037] Furthermore, the portion of the air intake channel 7 within the internal cavity 3.3 of this invention is configured as an air intake expansion section 7.1. The air intake expansion section 7.1 serves at least three purposes: 1- applying sealing adhesive to the outer wall of the air intake expansion section 7.1 and the inner wall of the upper opening 3.1 of the connecting block 3 to increase the contact area for sealing and fixing; 2- using a subsequent pressing plate 3.4 for sealing and fixing; 3- better controlling the liquid discharge from the liquid outlet pipe 5 by controlling the size of the air regulating valve 4.2 and its coordination with the air intake expansion section 7.1.

[0038] Furthermore, the connecting block 3 of this invention is securely connected to the mouth of the liquid storage bottle 1 via a threaded section on the inner wall of the lower opening 3.2. This is one common method of secure connection. Alternatively, sealing adhesive can be applied to the inner wall of the lower opening 3.2 and the outer side of the mouth of the liquid storage bottle 1 for sealing and fixation.

[0039] Furthermore, the liquid outlet pipe 5 of this invention is L-shaped. When the liquid outlet pipe 5 is inside the liquid storage bottle 1, it is in a vertical state. After leaving the liquid storage bottle 1, it needs to be set to a horizontal or slightly downward state to facilitate better liquid dispensing.

[0040] Furthermore, the connecting block 3 of this invention is provided with at least one fixing hole 2. The design of the fixing hole 2 allows the device to be well matched with the bracket, becoming part of the overall experimental device.

[0041] Furthermore, the connecting block 3 of this invention has a pressure plate 3.4 on the side of its upper opening 3.1; the pressure plate 3.4 has a through hole 3.5 in the middle for the liquid supply pipe 5 to pass through; the upper surface of the connecting block 3 has a bolt hole 3.6; the pressure plate 3.4 is fixedly connected to the connecting block 3 by a bolt screwed into the bolt hole 3.6. The design of the pressure plate 3.4 can effectively fix the air intake expansion section 7.1;

[0042] Furthermore, an adhesive layer is provided between the air intake expansion section 7.1 and the inner wall of the internal cavity 3.3 of this utility model.

[0043] Furthermore, the diameter of the perforation 3.5 in this invention is smaller than the cross-sectional diameter of the air intake expansion section 7.1.

[0044] Furthermore, the lower end of the outlet tube 5 of this invention is provided with an extension hose 8. Different storage bottles 1 have different heights; when the length of the outlet tube 5 cannot reach a deeper position, the extension hose 8 can be used to reach a deeper position inside the bottle. It has been verified that when the extension hose 8 is below the surface of the liquid chemical reagent inside the storage bottle 1, although it is made of hose, it does not affect the normal dispensing of the outlet tube 5.

[0045] The steps for using this utility model are briefly described as follows: 1) Connect all components normally; 2) Start the air compressor normally or open the valve of the gas cylinder (the gas cylinder contains compressed air); 3) Slowly increase the opening of the air regulating valve 4.2, and the compressed air enters the liquid storage bottle 1 through the air inlet channel 7; 4) As more and more air enters the liquid storage bottle 1, the liquid chemical reagents inside are squeezed into the liquid outlet pipe 5 and flow out from the top to other experimental equipment.

[0046] The above descriptions are merely specific embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for non-contact use of volatile or strongly irritating compounds, characterized in that The device includes a liquid storage bottle (1), a connecting block (3), a liquid outlet pipe (5), an air inlet head (6), an air inlet channel (7), an air compressor or gas cylinder (4), an air outlet pipe (4.1), and an air regulating valve (4.2). The connecting block (3) includes an upper opening (3.1), a lower opening (3.2), and an internal cavity (3.3). The connecting block (3) is fixedly and tightly connected to the mouth of the liquid storage bottle (1) through the lower opening (3.2); One end of the outlet tube (5) passes through the upper opening (3.1), the internal cavity (3.3), and the lower opening (3.2) from top to bottom and is inserted into the inside of the storage bottle (1); the other end of the outlet tube (5) is connected to the atmosphere; The side of the liquid outlet pipe (5) is provided with an air inlet channel (7); one end of the air inlet channel (7) is fixedly connected to the air inlet head (6); the other end of the air inlet channel (7) is connected to the inner cavity of the liquid storage bottle (1); The air compressor or gas cylinder (4) is connected to the air outlet pipe (4.1) via the air regulating valve (4.2); the air outlet pipe (4.1) is connected to the air inlet head (6).

2. The non-contact application device for volatile or highly irritating compounds according to claim 1, characterized in that, The portion of the air intake channel (7) within the internal cavity (3.3) is configured as an air intake expansion section (7.1).

3. The non-contact application device for volatile or highly irritating compounds according to claim 1, characterized in that, The connecting block (3) is fixedly and tightly connected to the mouth of the liquid storage bottle (1) through the threaded section provided on the inner wall of the lower opening (3.2).

4. The non-contact application device for volatile or highly irritating compounds according to claim 1, characterized in that, The outlet pipe (5) is L-shaped.

5. The non-contact application device for volatile or highly irritating compounds according to claim 1, characterized in that, The connecting block (3) is provided with at least one fixing hole (2).

6. The non-contact application device for volatile or highly irritating compounds according to claim 2, characterized in that, The upper opening (3.1) of the connecting block (3) is provided with a pressure plate (3.4); the middle of the pressure plate (3.4) is provided with a through hole (3.5) through which the liquid supply pipe (5) passes. The upper surface of the connecting block (3) is provided with bolt holes (3.6); The pressure plate (3.4) is fixedly connected to the connecting block (3) by a bolt screwed into the bolt hole (3.6).

7. The non-contact application device for volatile or highly irritating compounds according to claim 2, characterized in that, An adhesive layer is provided between the air intake expansion section (7.1) and the inner wall of the internal cavity (3.3).

8. A non-contact application device for volatile or highly irritating compounds according to claim 6, characterized in that, The diameter of the perforation (3.5) is smaller than the cross-sectional diameter of the intake expansion section (7.1).

9. A non-contact application device for volatile or highly irritating compounds according to claim 1, 4, or 6, characterized in that, An extension hose (8) is provided at the lower end of the outlet pipe (5).

Images