Auxiliary device for feeding high-risk liquid materials
By designing an auxiliary device for feeding high-risk liquid materials that is compatible with liquid feeding nozzles, the problems of material spillage and cross-contamination during liquid feeding operations are solved. This achieves flexible adaptation and good sealing, protecting the health of operators and ensuring product quality.
Patent Information
- Application Number
- CN202520637252.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-07
AI Technical Summary
The existing liquid feeding operation lacks strict protective measures, which leads to the leakage of high-risk liquid materials, endangering the health of operators and potentially introducing cross-contamination. The existing protective cover structure is fixed and cannot be adapted to the liquid feeding nozzle.
An auxiliary device comprising a support body and a cover is designed. The cover is equipped with a nozzle cover, a garbage bag, an operating port, a nitrogen port, a vent port, and a bucket lid opening. It is adapted to a liquid feeding nozzle and forms a sealed environment through a detachable structure and nitrogen protection, isolating the material from the external environment.
It achieves flexible adaptation to liquid feeding nozzles, has good sealing performance to prevent material leakage, protects the health of operators, and ensures product quality.
Smart Images

Figure CN223936226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical and chemical equipment technology, specifically to an auxiliary device for feeding high-risk liquid materials. Background Technology
[0002] In the production of chemical products or pharmaceuticals, liquid feeding is a common operation. In factories, this feeding method often requires opening the container lid and adding the material through a diaphragm pump. However, existing feeding operations often lack strict protective measures, relying solely on nitrogen for inertization. This can lead to odor leakage, posing a risk to the physical and mental health of personnel feeding highly hazardous liquids. Furthermore, the open-lid operation can easily introduce foreign matter from the external environment into the reaction system, causing cross-contamination and posing a risk to product quality.
[0003] In the prior art, some protective covers for solid materials are disclosed, which can isolate dust and prevent dust from escaping when solid materials are fed. However, these protective covers have a fixed structure and poor flexibility, and cannot be well adapted to the feeding nozzles of liquid materials. Therefore, they are not suitable for feeding operations of highly hazardous liquid materials.
[0004] Therefore, there is an urgent need in this field for an auxiliary device for feeding high-risk liquid materials. This device is designed for feeding high-risk liquid materials, is compatible with liquid feeding nozzles, and has a simple structure that is easy to operate. It isolates the material system from the external environment, prevents material spillage, and protects the physical and mental health of operators while ensuring product quality. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an auxiliary device for feeding high-risk liquid materials. The auxiliary device for feeding high-risk liquid materials includes a support body and a cover body. The support body is a hollow frustum structure. The cover body is fixedly installed on the surface of the support body. A nozzle cover and a garbage bag are respectively provided on both sides of the cover body. The cover body is also provided with an operation port, a nitrogen port, a vent port and a bucket lid opening.
[0006] Specifically, the nozzle cover is detachably installed on one side of the cover to accommodate the feeding nozzle, and the garbage bag is detachably installed on the other side of the cover to accommodate the disassembled nozzle cover.
[0007] Specifically, the operating port is detachably fitted with an operating glove, which is made of LDPE or nitrile and is located inside the cover.
[0008] Specifically, the end of the gun head cover that is not connected to the cover has an elastic opening, and the end of the garbage bag that is not connected to the cover also has an elastic opening.
[0009] Specifically, the nitrogen port and the vent are both located at the top of the enclosure, the operating port is located on the side of the enclosure, the lid opening is located at the bottom of the enclosure, and the lid opening is equipped with an O-ring. The O-ring is made of one of the following materials: perfluoroether, silicone, rubber, or fluorine-coated.
[0010] Specifically, the top of the cover is also provided with an electrostatic conductor, which is made of copper and equipped with an electrostatic clip.
[0011] Specifically, the material of the cover, gun head cover, and garbage bag is one of TPU, LDPE, or HDPE.
[0012] Specifically, the support is made of stainless steel, titanium, or an alloy.
[0013] Specifically, both the vent and the nitrogen port are equipped with DN25 quick-release interfaces.
[0014] A second aspect of this utility model provides a method for using the aforementioned auxiliary device for feeding high-risk liquid materials, the method comprising the following steps:
[0015] S1. When adding materials, first place the support body on the solvent tank, then fix the cover body on the support body, and adjust the relative position of the support body and the solvent tank so that the lid opening is aligned with the lid of the solvent tank.
[0016] S2. Insert the feeding nozzle into the nozzle cover. If the nozzle is covered with a used nozzle cover, put the used nozzle cover into a garbage bag before proceeding to the next step. If the nozzle is not covered with a used nozzle cover, proceed directly to the next step.
[0017] S3. Connect the nitrogen pipeline to the nitrogen port, connect the vent pipeline to the vent port, tighten the nozzle cap and the end of the garbage bag away from the hood, and have the operator put their hands into the operating gloves through the operating port, open the barrel lid, and then turn on the nitrogen to inertize the solvent barrel and the inside of the hood.
[0018] S4. Insert the nozzle into the barrel and start the pump to add material;
[0019] S5. After feeding is completed, turn off the feeding pump and retract the nozzle into the nozzle sleeve. Cover the bucket with the lid, remove your hands from your operating gloves, clamp the connection between the nozzle sleeve and the cover from the outside and remove the nozzle sleeve. Finally, remove the cover from the support.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] 1. The auxiliary device for feeding high-risk liquid materials provided by this utility model is compatible with existing liquid feeding methods. It has a simplified structure and is easy to disassemble. The nozzle cover and garbage bag can be flexibly disassembled and replaced according to different usage scenarios and needs. In addition, this device has good sealing performance and can be used continuously, which has the advantages of high practicality.
[0022] 2. The auxiliary device for feeding high-risk liquid materials provided by this utility model effectively isolates the high-risk liquid material system from the external environment, avoids splashing and leakage of liquid materials, ensures product quality, and effectively protects the physical and mental health of operators. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the auxiliary device for feeding high-risk liquid materials provided by this utility model;
[0024] Figure 2 This is a front view of the auxiliary device for feeding high-risk liquid materials provided by this utility model from a perspective angle.
[0025] Figure 3 This is a top view from a perspective angle of the auxiliary device for feeding high-risk liquid materials provided by this utility model;
[0026] Figure 4 This is a left view from a perspective angle of the auxiliary device for feeding high-risk liquid materials provided by this utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the support body of the auxiliary device for feeding high-risk liquid materials provided by this utility model;
[0028] In the diagram, 1-cover, 2-gun head cover, 3-garbage bag, 4-operation port, 5-nitrogen port, 6-vent port, 7-operation gloves, 8-bucket lid opening, 9-support body, 10-static wire. Detailed Implementation
[0029] The technical solution of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise specified, the materials, instruments, and reagents used in the following embodiments can be obtained commercially. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.
[0030] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.
[0031] Example 1
[0032] like Figure 1-5 As shown in the figure, this embodiment illustrates an auxiliary device for feeding hazardous liquid materials. The auxiliary device includes a support body 9 and a cover 1. The support body 9 is a hollow frustum structure. The cover 1 is fixedly installed on the surface of the support body 9 using buttons or Velcro. A nozzle cover 2 and a garbage bag 3 are respectively provided on both sides of the cover 1. The cover 1 also has an operation port 4, a nitrogen port 5, a vent port 6, and a lid opening 8. The nitrogen port 5 and the vent port 6 are both located at the top of the cover 1, and both are equipped with DN25 quick-release connectors. The operation port 4 is located on the side of the cover 1, and the lid opening 8 is located at the bottom of the cover 1. The lid opening 8 is equipped with an O-ring, the material of which is perfluoroether, silicone, rubber, or fluorinated. The O-ring improves the sealing performance at the connection between the lid opening 8 and the solvent container.
[0033] The nozzle cover 2 is detachably installed on one side of the housing 1 to accommodate the feeding nozzle, and the garbage bag 3 is detachably installed on the other side of the housing 1 to accommodate the disassembled nozzle cover 2. Both the nozzle cover 2 and the garbage bag 3 can be connected or removed from the housing by means of Velcro, buttons or sealing zippers, which improves the flexibility of the device.
[0034] Operating gloves 7 are detachably installed at the operating port 4. The operating gloves 7 are located inside the cover 1 and are made of LDPE or nitrile, which have good corrosion resistance and can protect operators from high-risk materials.
[0035] The end of the gun nozzle cover 2 that is not connected to the cover 1 has an elastic opening, and the end of the garbage bag 3 that is not connected to the cover 1 also has an elastic opening. When in use, tightening the elastic opening can create a sealed environment for the entire device and the interior of the solvent tank, preventing leakage of hazardous liquid materials or escape of inert gases.
[0036] The top of the cover 1 is also provided with an electrostatic wire 10, which is made of copper and is equipped with an electrostatic clip.
[0037] The cover 1, the gun nozzle cover 2, and the garbage bag 3 are all made of one of the following materials: TPU, LDPE, or HDPE. TPU, LDPE, or HDPE have good corrosion resistance, are suitable for hazardous liquid materials, and can play a good isolation role. The support body 9 is made of one of the following materials: stainless steel, titanium, or alloy, which can not only play a role in corrosion resistance, but also have considerable hardness and play a supporting role.
[0038] The specific usage method of the auxiliary device for feeding high-risk liquid materials shown in this embodiment is as follows:
[0039] S1. When adding materials, first place the support body 9 on the solvent tank, then fix the cover body 1 on the support body 9, and adjust the relative position of the support body 9 and the solvent tank so that the lid opening 8 is aligned with the lid of the solvent tank.
[0040] S2. Insert the feeding nozzle into the nozzle cover 2. If the nozzle is covered with a used nozzle cover 2, place the used nozzle cover 2 into the garbage bag 3 and then proceed to the next step. If the nozzle is not covered with a used nozzle cover 2, proceed directly to the next step.
[0041] S3. Connect the nitrogen pipeline to the nitrogen port 5, connect the vent pipeline to the vent port 6, tighten the gun head cover 2 and the garbage bag 3 at the end away from the cover 1, the operator puts both hands into the operating gloves 7 through the operating port 4, opens the barrel lid, and then turns on the nitrogen to inertize the solvent barrel and the inside of the cover 1.
[0042] S4. Insert the nozzle into the barrel and start the pump to add material;
[0043] S5. After feeding is completed, turn off the feeding pump and retract the nozzle into the nozzle sleeve 2. Cover the bucket and remove the operator's hands from the operating gloves 7. Clamp the connection between the nozzle sleeve 2 and the cover 1 from the outside and remove the nozzle sleeve 2. Finally, remove the cover 1 from the support body 9.
[0044] In summary, the above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.
Claims
1. An auxiliary device for feeding high-risk liquid materials, characterized in that, The auxiliary device for feeding high-risk liquid materials includes a support body and a cover. The support body is a hollow frustum structure. The cover is fixedly installed on the surface of the support body. A nozzle cover and a garbage bag are respectively provided on both sides of the cover. The cover also has an operation port, a nitrogen port, a vent port and a bucket lid opening.
2. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, The nozzle cover is detachably installed on one side of the cover to accommodate the feeding nozzle, and the garbage bag is detachably installed on the other side of the cover to accommodate the disassembled nozzle cover.
3. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, An operating glove is detachably installed at the operating port. The operating glove is made of LDPE or nitrile and is located inside the cover.
4. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, The end of the gun head cover that is not connected to the cover has an elastic opening, and the end of the garbage bag that is not connected to the cover also has an elastic opening.
5. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, The nitrogen inlet and vent are both located at the top of the enclosure, the operating port is located on the side of the enclosure, and the lid opening is located at the bottom of the enclosure. The lid opening is equipped with an O-ring, and the O-ring is made of one of the following materials: perfluoroether, silicone, rubber, or fluorine-coated.
6. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, The top of the cover is also provided with an electrostatic conductor, which is made of copper and equipped with an electrostatic clip.
7. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, The cover, gun nozzle cover, and garbage bag are all made of one of the following materials: TPU, LDPE, or HDPE.
8. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, The support is made of stainless steel, titanium, or an alloy.
9. The auxiliary device for feeding high-risk liquid materials according to claim 1, characterized in that, Both the vent and nitrogen inlet are equipped with DN25 quick-release connectors.