Anti-static enhanced blow molding container
The multi-layered plastic container design with an antistatic inner layer and conductive cap bridge addresses the issue of internal static electricity discharge, ensuring safety by dissipating internal charges through external antistatic structures.
Patent Information
- Application Number
- CN202421785038.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-26
AI Technical Summary
Existing blow molded containers can only prevent surface static electricity and cannot effectively export internal static electricity, which poses safety hazards.
By providing a conductive bridge structure with an antistatic plastic inner layer and an outer cover inside the container, the internal static electricity is exported to the outside, and the external antistatic structure is used to achieve grounding.
Effectively prevent internal static electricity accumulation, ensure safe use, and avoid dangers caused by static electricity.
Smart Images
Figure CN223101419U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of plastic containers, and in particular relates to an anti-static enhanced blow-molded container. Background Art
[0002] Plastic containers refer to containers made of plastic materials for storing and transporting various items. Due to their advantages such as light weight, corrosion resistance, low cost, and diverse shapes, they are widely used in many industries such as food, beverage, chemical industry, medicine, and household products.
[0003] Since plastics are not conductive, during transportation or use, static electricity is generated due to friction. The static electricity cannot be conducted out through the plastic barrel. When the charge reaches a certain amount, it is easy to generate a discharge phenomenon, or sudden situations such as fire or explosion may occur, causing danger.
[0004] In order to reduce the potential safety hazards caused by static electricity, some plastic barrels in the prior art are equipped with anti-static structures, such as guiding static electricity through grounding. However, such anti-static means mainly target the static electricity on the surface of the container. In addition to the static electricity generated on the surface, the raw materials in the barrel continuously flow and rub against the barrel wall, generating frictional static electricity inside the barrel. Since the inside of the barrel is a sealed structure, the static electricity generated by internal friction cannot be conducted out of the barrel. Therefore, the danger of static electricity still exists and has not been substantially solved. Therefore, how to guide and release the static electricity inside the container is a technical problem that needs to be solved in this technical field at present. Summary of the Invention
[0005] The utility model solves the defect that the prior art only resists the static electricity outside the blow-molded container and cannot resist the static electricity inside the blow-molded container, and provides an anti-static enhanced blow-molded container. A conductive bridge between the inside and the outside of the blow-molded container is established through the outer cover of the blow-molded container, so as to guide the static electricity inside the blow-molded container to the outside, and then resist the external static electricity through appropriate means, thereby avoiding the danger caused by the accumulation of internal static electricity.
[0006] The specific technical solution of the utility model is as follows: an anti-static enhanced blow-molded container, comprising a barrel body formed by multi-layer co-extrusion blow molding and an outer cover adapted to the container mouth of the barrel body. The inner layer of the barrel body is an anti-static plastic inner layer, and the anti-static plastic inner layer extends to the inner wall position of the container mouth. The outer cover includes an inner sealing body made of anti-static plastic, and the inner sealing body has a first part in contact with the anti-static plastic inner layer and an exposed part exposed outside for connecting with an external anti-static structure.
[0007] The antistatic plastic inner layer means that the inner layer is made of antistatic plastic and has antistatic properties. Antistatic plastic is mainly a modified plastic material with antistatic agents added to plastic raw materials. According to the use requirements of the blow-molded container, the antistatic agent can be an internal antistatic agent or an external antistatic agent. The antistatic plastic inner layer made of antistatic plastic can effectively prevent static electricity accumulation and make its surface conductive, so that the static electricity generated by the internal friction of the blow-molded container can be guided to the set position. The antistatic inner layer of the utility model extends to the inner wall of the container mouth, so that the static electricity generated inside is guided to the container mouth. It only needs to establish a passage between the inner wall of the container mouth and the outside to guide the internal static electricity, thereby ensuring safe use; the outer cover is screwed on the container mouth to seal the container mouth, and the outer cover The inner seal is made of antistatic plastic, so that the inner seal has conductivity. The first component of the inner seal is in contact with the inner layer of the antistatic plastic, so that the static electricity generated by friction inside the blow-molded container can be guided to the exposed part of the inner seal through the first component. The static electricity inside the blow-molded container can be led out by connecting the exposed part to the external antistatic structure. The exposed part refers to the exposed part of the inner seal, so that the outer cover is screwed on the mouth of the container, and a conductive bridge between the inside and the outside of the blow-molded container is established; the external antistatic structure refers to an antistatic structure outside the blow-molded container, such as antistatic spray, antistatic packaging, ion equipment, or connecting a wire outside the blow-molded container, and the wire is connected to the exposed part, so that grounding is formed, and the static electricity generated inside the blow-molded container is quickly led out to ensure safe use.
[0008] Preferably, the antistatic plastic inner layer has a smooth structure without sharp corners inside the barrel body, and the antistatic plastic inner layer corresponding to the inner wall of the container mouth has a circumferential columnar structure, and the circumferential columnar antistatic plastic inner layer is flush with the end surface of the container mouth. The antistatic plastic inner layer has a smooth structure and will not produce sharp corners inside the blow-molded container, thereby preventing the internal substances from generating static electricity at the sharp corners due to friction; the antistatic plastic inner layer extends to the inner wall of the container mouth, so that the sealing body of the outer cover can contact the antistatic plastic inner layer.
[0009] Preferably, the outer cover includes an outer shell, and the inner sealing body and the outer shell are an integral structure; the first component includes a central body, a curved body and a circumferential body, the central body is located in the central part of the inner sealing body, the circumferential body is connected to the central body through the curved body, the circumferential body has an internal thread that matches the external thread of the barrel container mouth, and the end of the circumferential body is an exposed part.
[0010] Preferably, the central body is in a stacked shape with multiple circles, and the outer diameter of each circle changes step by step, wherein the outer diameter of the largest circle is in an interference fit with the inner diameter of the container mouth, and the central body and the outer shell are hollow. The largest circle of the central body contacts the inner wall of the container mouth, so that the inner sealing body contacts the antistatic plastic inner layer of the blow-molded container.
[0011] Preferably, the end of the outer shell is flush with the end of the circumferential body, and the end surface of the outer shell and the end surface of the circumferential body are located on the same radial end surface of the outer cover.
[0012] Preferably, an upper antistatic structure is provided on the barrel body, the upper antistatic structure adopts a conductive coating structure, the upper antistatic structure is annular and located at the periphery of the container mouth on the upper surface of the barrel body, and has an inner ring size that contacts the exposed part of the outer cover.
[0013] Preferably, a side antistatic structure is provided on the side of the barrel body, the side antistatic structure adopts a conductive coating structure, and the side antistatic structure is connected to the upper antistatic structure.
[0014] Preferably, a bottom antistatic structure is provided at the bottom of the barrel body, the bottom antistatic structure adopts a conductive coating structure, and the bottom antistatic structure is connected to the side antistatic structure.
[0015] Preferably, the bottom antistatic structure has a bulge protruding from the bottom of the barrel.
[0016] The beneficial effects of the utility model are as follows: 1. The antistatic plastic inner layer made of antistatic plastic can effectively prevent static electricity accumulation and make its surface conductive, so that static electricity generated by friction inside the blow-molded container can be guided to a set position. The antistatic inner layer of the utility model extends to the inner wall of the container mouth, so that the static electricity generated inside is guided to the container mouth. It only needs to establish a passage between the inner wall of the container mouth and the outside to guide the internal static electricity out, thereby ensuring safety in use;
[0017] 2. The outer cover is screwed on the mouth of the container, which establishes a conductive bridge between the inside and outside of the blow-molded container. The static electricity generated inside the blow-molded container is quickly discharged through the external anti-static structure to ensure safe use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a cross-sectional view of the utility model;
[0019] Figure 2 This is a schematic diagram of the container mouth structure of a barrel body of the utility model;
[0020] Figure 3 This is a schematic diagram of the bottom structure of a barrel of the utility model;
[0021] In the figure: 1. barrel body, 2. outer cover, 3. bulge, 4. antistatic plastic inner layer, 5. side antistatic structure, 6. upper antistatic structure, 7. container mouth, 8. cavity, 9. outer shell, 10. curved body, 11. central body, 12. circumferential body, 13. first component, 14. exposed part, 15. bottom antistatic structure. DETAILED DESCRIPTION
[0022] The present utility model will be further described below through specific embodiments in conjunction with the accompanying drawings. Embodiment
[0023] As Figure 1 Figure 2 Figure 3 As shown in the figure, an anti-static enhanced blow-molded container includes a barrel body 1 formed by co-extrusion blow molding in multiple layers and an outer cover 2 adapted to the container mouth 7 of the barrel body. The inner layer of the barrel body is an anti-static plastic inner layer 4, and the anti-static plastic inner layer extends to the inner wall position of the container mouth. The anti-static plastic inner layer has a smooth structure without sharp corners inside the barrel body, and the anti-static plastic inner layer corresponding to the inner wall position of the container mouth has a circumferential columnar structure, and the circumferential columnar anti-static plastic inner layer is flush with the end face position of the container mouth.
[0024] A concave portion is provided at the upper part of the barrel body, a handle is provided at the middle part of the concave portion, and the front end position of the concave portion is the container mouth.
[0025] An upper anti-static structure 6 is provided on the barrel body. The upper anti-static structure adopts a conductive coating structure and is in a ring structure on the outer periphery of the container mouth on the upper surface of the barrel body. The upper anti-static structure is horizontally arranged, extending horizontally from one side of the barrel body to the other side of the barrel body. The upper anti-static structure crosses the concave portion, and the container mouth is at the middle symmetric position of the upper anti-static structure.
[0026] A side anti-static structure 5 is provided on the side surface of the barrel body. The side anti-static structure adopts a conductive coating structure and is connected to the upper anti-static structure. The side anti-static structure extends downward from the upper part of the barrel body to the bottom position of the barrel body.
[0027] A bottom anti-static structure 15 is provided at the bottom of the barrel body. The bottom anti-static structure adopts a conductive coating structure and is connected to the side anti-static structure. An inner concave portion is provided at the bottom of the barrel body. The inner concave portion is divided into two parts. One part is a structure adapted to the handle at the upper part of the barrel body, and the other part is a structure adapted to the outer cover screwed to the container mouth of the barrel body. The bottom anti-static structure is at both sides of the inner concave portion. The end position of the bottom anti-static structure has a bulge 3 protruding from the bottom of the barrel body. The bulge is a thickened part of the bottom anti-static structure, and the bulge is circular or square.
[0028] The outer cover includes an outer housing 9 and an inner sealing body made of antistatic plastic disposed within the outer housing. The inner sealing body and the outer housing are of an integral structure. The inner sealing body has a first component 13 that contacts the antistatic plastic inner layer of the barrel body and an exposed portion 14 that is exposed and used to connect to an external antistatic structure. The first component includes a central body 11, a curved body 10, and a circumferential body 12. The central body is located at the central part of the inner sealing body. The circumferential body is connected to the central body through the curved body. The circumferential body has an internal thread adapted to the external thread of the container opening of the barrel body. The end of the circumferential body is the exposed portion. The central body is in a multi-layer stacked shape, and the outer diameter of each layer changes step by step. The outer diameter of the largest layer has an interference fit with the inner diameter of the container opening. There is a hollow between the central body and the outer housing, and a cavity 8 is formed between the central body and the outer housing. The end of the outer housing is flush with the end of the circumferential body, and the end face of the outer housing and the end face of the circumferential body are on the same radial end face of the outer cover. The upper antistatic structure is located at the outer circumference of the container opening and has an inner ring dimension that contacts the exposed portion of the outer cover.
[0029] The outer cover is screwed onto the container opening. The outer surface of the central body of the inner sealing body inside the outer cover fits against the antistatic plastic inner layer at the inner wall of the container opening. The internal thread of the inner sealing body cooperates with the external thread on the outer surface of the container opening. After the outer cover is tightened, the exposed portion contacts the upper antistatic structure of the barrel body. Thus, the static electricity generated inside the blow-molded container is guided from inside the barrel body to outside the barrel body, and in this way, antistatic means outside the barrel can be used. In this embodiment, an upper antistatic structure, a side antistatic structure, and a bottom antistatic structure are provided and connected outside the barrel body, facilitating the implementation of external antistatic means. Moreover, when the blow-molded containers are stacked, the bottom antistatic structure contacts the upper antistatic structure, and the bottom antistatic structure of the lowermost blow-molded container is in a grounded state. In this way, all the stacked blow-molded containers can achieve antistatic means through grounding.
[0030] The above is only a preferred embodiment of the present invention and does not impose any limitation on the present invention. Any simple modification, change, and equivalent transformation made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. An antistatic enhanced blow-molded container, characterized in that, It includes a barrel body (1) formed by multi-layer co-extrusion blow molding and an outer cover (2) adapted at the container opening (7) of the barrel body. The inner layer of the barrel body is an antistatic plastic inner layer (4), and the antistatic plastic inner layer extends to the inner wall position of the container opening; the outer cover includes an inner sealing body made of antistatic plastic, and the inner sealing body has a first component (13) in contact with the antistatic plastic inner layer and an exposed part (14) exposed outside for connecting with an external antistatic structure.
2. The anti-static enhanced blow-molded container according to claim 1, wherein The antistatic plastic inner layer has a smooth structure without sharp corners inside the barrel body, and the antistatic plastic inner layer corresponding to the inner wall position of the container opening has a circumferential columnar structure, and the circumferential columnar antistatic plastic inner layer is flush with the end face position of the container opening.
3. The anti-static enhanced blow-molded container according to claim 1 or 2, characterized in that, The outer cover includes an outer shell (9), and the inner sealing body and the outer shell are of an integral structure; the first component includes a central body (11), a bent body (10) and a circumferential body (12), the central body is at the central part of the inner sealing body, the circumferential body is connected to the central body through the bent body, the circumferential body has an internal thread adapted to the external thread of the container opening of the barrel body, and the end of the circumferential body is the exposed part.
4. The anti-static enhanced blow-molded container according to claim 3, wherein The central body is in a multi-layer stacked shape, and the outer diameter of each layer changes step by step, and the outer diameter of the largest layer has an interference fit with the inner diameter of the container opening, and there is a hollow between the central body and the outer shell.
5. The anti-static enhanced blow-molded container according to claim 3, wherein, The end of the outer shell is flush with the end of the circumferential body, and the end face of the outer shell and the end face of the circumferential body are on the same radial end face of the outer cover.
6. The anti-static enhanced blow-molded container according to claim 1, characterized in that, An upper antistatic structure (6) is provided on the barrel body. The upper antistatic structure adopts a conductive coating structure. The upper antistatic structure is in a ring structure around the outer periphery of the container opening on the upper surface of the barrel body, and the upper antistatic structure has an inner ring dimension in contact with the exposed part of the outer cover.
7. The anti-static enhanced blow-molded container according to claim 6, wherein, A side antistatic structure (5) is provided on the side of the barrel body. The side antistatic structure adopts a conductive coating structure, and the side antistatic structure is connected to the upper antistatic structure.
8. The anti-static enhanced blow-molded container according to claim 7, characterized in that, A bottom antistatic structure (15) is provided at the bottom of the barrel body. The bottom antistatic structure adopts a conductive coating structure, and the bottom antistatic structure is connected to the side antistatic structure.
9. The antistatic enhanced blow-molded container according to claim 8, wherein The bottom antistatic structure has a bulge (3) protruding from the bottom of the barrel body.