Corrosion resistant filling equipment housing trim
By employing a composite structure of a metal outer layer and a corrosion-resistant inner layer in the edging of the filling equipment casing, combined with sealants and sealant, the problems of corrosive media penetration and structural failure are solved, achieving corrosion resistance and high sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州发创环保设备科技有限公司
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-21
AI Technical Summary
The outer casing of existing filling equipment is prone to rusting in corrosive environments, and gaps exist that allow corrosive media to penetrate.
It adopts a composite structure of a metal outer layer and a corrosion-resistant inner layer, combined with seals, sealing strips and sealant, to form a multi-layer sealing barrier to prevent corrosive media from penetrating.
It effectively prevents corrosion from corrosive media, avoids structural failure, enhances sealing performance, and is suitable for the highly corrosive environments of the food and chemical industries.
Smart Images

Figure CN224529240U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shell edging technology, specifically relating to a corrosion-resistant edging for the shell of a filling equipment. Background Technology
[0002] Filling equipment is widely used in the food, beverage, pharmaceutical, and chemical industries. Its working environment often involves contact with water, cleaning agents (acids, alkalis), steam, organic solvents, or corrosive materials.
[0003] The outer casing of existing filling equipment is mostly made of a single metal material, which is prone to the following problems when in prolonged contact with corrosive liquids or gases:
[0004] First, ordinary steel is prone to rusting in acidic or alkaline environments, which can cause the edging structure to fail.
[0005] Secondly, there are gaps at the bends of the outer casing, allowing corrosive media to easily penetrate.
[0006] Therefore, in order to solve the above problems, it is necessary to design a corrosion-resistant filling equipment shell edge. Utility Model Content
[0007] The purpose of this invention is to provide a corrosion-resistant edging for the outer shell of a filling equipment to solve the technical problems mentioned in the background art.
[0008] To solve the above-mentioned technical problems, this utility model provides a corrosion-resistant filling equipment outer shell edging, comprising:
[0009] The edging body has four bends formed by bending inwards on all four sides; among them
[0010] The edging body includes: a metal outer layer and an anti-corrosion inner layer disposed inside the metal outer layer;
[0011] Four seals are respectively installed between adjacent bends to seal the gap between two adjacent bends.
[0012] Furthermore, the thickness ratio of the outer metal layer to the inner anti-corrosion layer is 1:1 to 3.
[0013] Furthermore, the sealing element includes two straight portions arranged in an "L" shape;
[0014] The outer sides of the two straight portions are provided with recesses; wherein
[0015] The side portion of the bent section is disposed within the recess; and
[0016] The outer side of the outer metal layer and the inner side of the anti-corrosion inner layer are in contact with the inner wall of the recess.
[0017] Furthermore, the seal also includes a protrusion that contacts the bend of an adjacent bend;
[0018] The sealant is coated with sealant at the contact point between the sealant and the adjacent bend.
[0019] Furthermore, a sealing strip is provided on the inner side of each of the aforementioned bends; wherein
[0020] The sealing strip is in contact with the anti-corrosion inner layer; and
[0021] The two sides of the sealing strip are in contact with the straight parts of the two sealing elements, respectively;
[0022] The contact area between the sealing strip and the straight part is coated with sealant.
[0023] The beneficial effects of this utility model are:
[0024] (I) This utility model adopts a composite structure of a metal outer layer and an anti-corrosion inner layer for the edge-wrapping body. The anti-corrosion inner layer directly resists the erosion of corrosive media, while the metal outer layer avoids structural deformation. This solves the problem of easy rusting and structural failure of traditional single metal materials and can adapt to the strong corrosive environment of food, chemical and other industries.
[0025] (II) This utility model uses the concave part of the sealing element to fit into the bent part and the convex part to fit into the bent part, together with the sealing strip and sealant, to form a multi-layer sealing barrier from the outside to the inside, completely sealing the gap at the bend and preventing the penetration of corrosive media such as water, acid and alkali cleaning agents, and steam, thus solving the problem of corrosive media penetration caused by gaps in traditional edge wrapping.
[0026] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0029] Figure 1 This is a perspective view of a preferred embodiment of the present invention.
[0030] Figure 2 yes Figure 1 Enlarged view of region A in the middle;
[0031] Figure 3 This is a front view of a preferred embodiment of the present invention.
[0032] Figure 4 yes Figure 3 Enlarged view of region C in the middle;
[0033] Figure 5 This is a perspective view of a preferred embodiment of the sealing element of this utility model;
[0034] Figure 6 yes Figure 1 A magnified view of region B in the middle.
[0035] In the picture:
[0036] 1. Edge-sealing body; 11. Bending part; 12. Metal outer layer; 13. Anti-corrosion inner layer;
[0037] Seal 2, straight part 21, concave part 211, convex part 22, sealing strip 3. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1
[0039] like Figures 1 to 6 As shown, this embodiment provides a corrosion-resistant filling equipment housing edge covering, including:
[0040] The edging body 1 is bent inward on all four sides to form four bent portions 11. The edging body 1 includes a metal outer layer 12 and an anti-corrosion inner layer 13 disposed inside the metal outer layer 12. Four sealing elements 2 are disposed between adjacent bent portions 11 to seal the gap between two adjacent bent portions 11. It is preferred that the bent portions 11 are bent at right angles to fit the frame of the filling equipment. The metal outer layer 12 is made of 304 or 316L stainless steel sheet to provide mechanical strength. The anti-corrosion inner layer 13 is made of, but not limited to, flexible graphite gaskets or PTFE (polytetrafluoroethylene) layers to form a corrosion-resistant barrier that comes into direct contact with corrosive media that may come into contact with the inside of the filling equipment, preventing the corrosive media from eroding the metal outer layer 12 and avoiding rusting or structural failure of the metal outer layer 12. The sealing elements 2 are made of, but not limited to, vulcanized silicone rubber, which enhances service life and sealing due to its aging-resistant material properties.
[0041] The thickness ratio of the outer metal layer 12 to the inner anti-corrosion layer 13 is 1:1 to 3; among which, a thickness ratio of 1:1.5 is the optimal ratio, which ensures both the reliability of corrosion protection and the structural strength and rigidity.
[0042] In this embodiment, the edge-wrapping body 1 adopts a composite structure of a metal outer layer 12 and an anti-corrosion inner layer 13. The anti-corrosion inner layer 13 directly resists the erosion of corrosive media, while the metal outer layer 12 avoids structural deformation. This solves the problem of easy rusting and structural failure of traditional single metal materials and can adapt to the strong corrosive environment of food, chemical and other industries.
[0043] The sealing element 2 includes: two straight portions 21 arranged in an "L" shape; a recess 211 is provided on the outer side of the two straight portions 21; the side of the bent portion 11 is disposed in the recess 211; and the outer side of the outer metal layer 12 and the inner side of the anti-corrosion inner layer 13 are in contact with the inner wall of the recess 211; wherein the two straight portions 21 arranged in an "L" shape and the recess 211 provided on the straight portions 21 achieve a tight fit with the bent portion 11, avoiding gaps between the sealing element 2 and the bent portion 11 due to equipment vibration, and enhancing the stability of the seal; wherein the two straight portions 21 are rounded to enhance aesthetics.
[0044] The sealing element 2 further includes a protrusion 22 that contacts the bend of the adjacent bend 11; the contact area between the sealing element 2 and the adjacent bend 11 is coated with sealant; since the straight part 21 cannot be completely sealed due to the presence of the bend, a double seal is achieved by setting the protrusion 22 and the sealant; the sealant fills the micro-gap through its fluidity and sealing properties after curing, completely blocking the penetration path of corrosive media.
[0045] Each of the bending portions 11 has a sealing strip 3 on its inner side; wherein the sealing strip 3 is in contact with the anti-corrosion inner layer 13; and both sides of the sealing strip 3 are in contact with the straight portions 21 of the two sealing elements 2 respectively; the contact area between the sealing strip 3 and the straight portion 21 is coated with sealant; wherein the sealing strip 3 provided on the inner side of each bending portion 11 directly contacts the anti-corrosion inner layer 13, forming the first inner sealing barrier to prevent the corrosive medium from spreading outward; on the other hand, its two sides contact the straight portion 21 of the sealing element 2, and fill the potential gap between the sealing element 2 and the inner side of the bending portion 11 through elastic compression, forming a double seal with the sealant, thereby enhancing the inner sealing performance.
[0046] In this embodiment, the concave portion 211 of the sealing element 2 fits into the bent portion 11, and the convex portion 22 fits into the bent area. Together with the sealing strip 3 and sealant, it forms a multi-layer sealing barrier from the outside to the inside, completely sealing the gap at the bend and preventing corrosive media such as water, acid and alkali cleaning agents, and steam from penetrating. This solves the problem of corrosive media penetration caused by gaps in traditional edge banding.
[0047] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0048] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0050] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A corrosion-resistant edging for the outer shell of a filling equipment, characterized in that, include: The edging body (1) is bent inward on all four sides to form four bent parts (11). in The edge-wrapping body (1) includes: a metal outer layer (12) and an anti-corrosion inner layer (13) disposed inside the metal outer layer (12). Four seals (2) are respectively provided between adjacent bends (11) to seal the gap between two adjacent bends (11); The sealing element (2) includes two straight portions (21) arranged in an "L" shape; The outer sides of the two straight portions (21) are provided with recesses (211); wherein The side portion of the bent portion (11) is disposed within the recess (211); and The outer side of the outer metal layer (12) and the inner side of the anti-corrosion inner layer (13) are in contact with the inner wall of the recess (211).
2. The corrosion-resistant filling equipment outer shell edging as described in claim 1, characterized in that, The thickness ratio of the outer metal layer (12) to the anti-corrosion inner layer (13) is 1:1 to 3.
3. The corrosion-resistant filling equipment outer shell edging as described in claim 1, characterized in that, The seal (2) further includes a protrusion (22) that contacts the bend of the adjacent bend (11). The sealant (2) is coated with sealant at the contact point with the adjacent bend (11).
4. The corrosion-resistant filling equipment outer casing edging as described in claim 2 or 3, characterized in that, Each of the aforementioned bends (11) has a sealing strip (3) on its inner side; wherein The sealing strip (3) is in contact with the anti-corrosion inner layer (13); and The two sides of the sealing strip (3) are in contact with the straight parts (21) of the two sealing elements (2); The contact area between the sealing strip (3) and the straight part (21) is coated with sealant.