Combined gasket with good sealing

Abstract

This utility model discloses a modular gasket with good sealing performance, comprising a first semicircular piece and a second semicircular piece that can be assembled into a complete circle. The first semicircular piece has a first overlapping piece and a second overlapping piece with insert posts at both ends. The second semicircular piece has a first overlapping groove and a second overlapping groove with insertion holes at corresponding positions. Double locking is achieved through the snap-fit ​​engagement of the overlapping pieces and the overlapping grooves, and the insertion of the insert posts and the insertion holes. A spring steel reinforcing strip with oblique insert posts is provided on the outer side of the joint between the two semicircular pieces, forming a self-locking structure by inserting into the oblique holes on the semicircular pieces. An inner rubber sealing ring protrudes from the surface and can expand radially under pressure. This utility model ensures structural stability through multiple mechanical connections, the self-locking design of the reinforcing strip facilitates installation and prevents loosening, and the elastic deformation characteristics of the rubber sealing ring effectively eliminate joint leakage. Overall, it has the advantages of convenient installation, strong connection, and reliable sealing.

Description

Technical Field

[0001] This utility model relates to the field of shearing machine technology, specifically to a combined gasket with good sealing performance. Background Technology

[0002] Plastic packaging films are used for packaging and as a coating layer. They are usually made of polypropylene, polystyrene, and other resins. During the production and processing of plastic packaging films, they need to be cut to the required size for subsequent use.

[0003] Publication No. CN207634683U discloses a combined sealing gasket, comprising two identical circular bodies that can be inserted together. Corresponding inserts and sockets are provided on the facing surfaces of the two circular bodies. An annular sealing line concentric with the through hole is provided on the upper and lower surfaces of each circular body. A hollow compression groove, aligned with the trajectory of the annular sealing line, is provided within the corresponding circular body. An expansion groove is provided on the outer side of each circular body, and the surface of the expansion groove is coated with a corrosion-resistant layer. This device transforms the mold structure, which previously could only accommodate one integral mold cavity in a single mold, into a segmented design. This allows for the arrangement of multiple segmented mold cavities without increasing the mold structure size, significantly improving mold utilization, reducing mold manufacturing costs, and greatly increasing the production efficiency of sealing gaskets. However, this patent still has the following problems in practical use:

[0004] When the above-mentioned gaskets are joined, glue is needed for auxiliary fixation. However, the glue often takes a long time to solidify, which affects the installation efficiency. In addition, manual application of glue often results in glue overflow. After the overflow glue solidifies, it will damage the flatness of the gasket surface and thus affect the sealing performance.

[0005] A combined gasket with good sealing performance is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a combined gasket with good sealing performance, so as to solve the problem mentioned in the background art that when the gaskets are connected, glue is needed for auxiliary fixation. However, the curing of glue often takes a long time, which affects the installation efficiency. In addition, manual application of glue often results in glue overflow. After the overflow glue solidifies, it will damage the flatness of the gasket surface and thus affect the sealing performance.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a combined gasket with good sealing performance, comprising a first semicircular piece and a second semicircular piece, wherein the first semicircular piece and the second semicircular piece can form a complete circular gasket;

[0008] A first overlapping piece is fixedly connected to the top of one end of the first semicircular piece, and a second overlapping piece is fixedly connected to the bottom of the other end of the first semicircular piece. A post is fixedly connected to the bottom surface of the first overlapping piece and the top surface of the second overlapping piece.

[0009] The second semicircular piece has a first overlapping groove on the top surface of one end and a second overlapping groove on the bottom surface of the other end. The inner bottom surface of the first overlapping groove and the inner top surface of the second overlapping groove are both provided with insertion holes.

[0010] A reinforcing strip is installed on the outside of the joint between the first and second semicircular pieces.

[0011] Preferably, oblique holes are symmetrically provided on the outer arc surface of the first semicircular piece and the outer arc surface of the second semicircular piece, and oblique inserts are symmetrically fixedly connected to the concave surface of the reinforcing strip.

[0012] Preferably, the oblique insertion post is inserted into the oblique hole, and the reinforcing strip is made of spring steel.

[0013] Preferably, a sealing inner ring is fixedly connected to the inner side of both the first and second semicircular pieces, and the sealing inner ring is made of rubber.

[0014] Preferably, the first overlapping piece and the first overlapping groove are engaged, and the second overlapping piece and the second overlapping groove are engaged.

[0015] Preferably, the insert and the socket are connected.

[0016] Preferably, the upper surface of the sealing inner ring is higher than the upper surfaces of the first and second semicircular pieces, and the rubber sealing inner ring expands radially when compressed.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This combination gasket with good sealing performance achieves stable docking through the snap-fit ​​structure of the first and second semicircular pieces, the snap-fit ​​fit of the overlapping piece and the overlapping groove, and the insertion locking of the insert post and the insertion hole. It eliminates seam leakage by utilizing the compression and extension of the sealing inner ring, enhances anti-separation performance through the self-locking reinforcing strip of the oblique insert post and oblique hole, and adopts a shearable design for quick replacement. The specific details are as follows:

[0018] 1. Through the snap-fit ​​structure design of the first and second semicircular pieces, when rotated to the same plane, the snap-fit ​​cooperation of the first overlapping piece and the first overlapping groove, the second overlapping piece and the second overlapping groove, and the insertion and locking of the insert post and the insertion hole achieve the effect of stable assembly with one-handed operation and resistance to separation by external force, significantly improving the convenience of installation and structural stability; the design of extending the sealing inner ring and making it flush with the surface of the first semicircular piece by the compression of fasteners effectively eliminates the problem of weak sealing at the traditional joint, greatly enhancing the overall sealing performance of the gasket; the innovative use of the self-locking reinforcing strip structure of the inclined insert post and inclined hole not only achieves quick installation but also ensures that it is difficult to loosen after installation, further strengthening the anti-separation ability of the combined structure; the unique detachable design allows for quick separation by simply cutting the reinforcing strip during replacement, solving the technical problem of difficult disassembly by traditional bolt fastening methods, increasing the gasket replacement efficiency by more than 50%, while avoiding component damage caused by forced disassembly. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the exploded bottom structure of this utility model.

[0022] In the figure: 1. First semicircular piece; 2. Second semicircular piece; 3. First overlapping piece; 4. Second overlapping piece; 5. Insert post; 6. First overlapping groove; 7. Second overlapping groove; 8. Insertion hole; 9. Angled hole; 10. Reinforcing strip; 11. Angled insert post; 12. Sealing inner ring. 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] Please see Figures 1-3 The present invention provides a technical solution: a combined gasket with good sealing performance, comprising a first semicircular piece 1 and a second semicircular piece 2, wherein the first semicircular piece 1 and the second semicircular piece 2 can form a complete circular gasket; the split design facilitates installation and replacement, while reducing manufacturing difficulty and cost.

[0025] The top of one end of the first semicircular piece 1 is fixedly connected to the first overlapping piece 3, and the bottom of the other end of the first semicircular piece 1 is fixedly connected to the second overlapping piece 4. The bottom surface of the first overlapping piece 3 and the top surface of the second overlapping piece 4 are both fixedly connected to the insert post 5. This asymmetrical overlapping structure design ensures that after the two semicircular pieces are joined together, the complete pad will not separate no matter which semicircular piece is held.

[0026] The second semicircular piece 2 has a first overlapping groove 6 on the top surface of one end and a second overlapping groove 7 on the bottom surface of the other end. The inner bottom surface of the first overlapping groove 6 and the inner top surface of the second overlapping groove 7 are both provided with insertion holes 8. This mating structure enables the first overlapping piece 3 and the first overlapping groove 6, the second overlapping piece 4 and the second overlapping groove 7 to achieve double snap-fit. With the insertion and locking of the insertion post 5 and the insertion hole 8, the combined gasket has excellent anti-separation performance.

[0027] A reinforcing strip 10 is installed on the outside of the joint between the first semicircular piece 1 and the second semicircular piece 2. The design of the reinforcing strip 10 further enhances the structural strength of the joint and prevents loosening or separation during use.

[0028] The outer arc surfaces of the first semicircular piece 1 and the second semicircular piece 2 are symmetrically provided with oblique holes 9, and the inner concave surfaces of the reinforcing strip 10 are symmetrically and fixedly connected with oblique insertion posts 11. This oblique insertion structure facilitates quick installation and also has a self-locking function.

[0029] The inclined insertion post 11 is inserted into the inclined hole 9, and the reinforcing strip 10 is made of spring steel. The choice of spring steel material ensures both the elastic deformation capacity of the reinforcing strip 10 for easy installation and the structural stability during use. The reinforcing strip 10 requires force to deform during installation, thereby allowing the inclined insertion post 11 to be inserted into the inclined hole 9.

[0030] The inner sides of the first semicircular piece 1 and the second semicircular piece 2 are both fixedly connected with sealing inner rings 12, which are made of rubber.

[0031] The first overlapping piece 3 and the first overlapping groove 6 are engaged, and the second overlapping piece 4 and the second overlapping groove 7 are engaged. This double-engagement structure ensures the mechanical strength and stability of the assembled gaskets.

[0032] The insertion post 5 and the insertion hole 8 are connected. The staggered insertion structure further enhances the connection reliability between the two semicircular pieces.

[0033] The upper surface of the sealing inner ring 12 is higher than the upper surfaces of the first semicircular piece 1 and the second semicircular piece 2, and the rubber sealing inner ring 12 expands radially when compressed. This design allows the sealing inner ring 12 to preferentially contact and form an effective seal when the fastener is tightened, while its radial expansion characteristics can completely eliminate the risk of leakage at the joint.

[0034] Working principle: Before using this type of well-sealed combined gasket, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 3 As shown, by aligning the first semicircular piece 1 and the second semicircular piece 2 at an angle, and rotating them to the same plane, the first overlapping piece 3 engages with the first overlapping groove 6, the second overlapping piece 4 engages with the second overlapping groove 7, and the insert 5 engages with the insertion hole 8. At this point, holding either the first semicircular piece 1 or the second semicircular piece 2 with one hand will not cause them to separate, making the installation process more stable. After assembly, simple external pulling cannot separate them, thus enhancing the overall stability of the combined gasket structure.

[0035] During installation, fasteners such as bolts compress the gasket, causing the inner sealing ring 12 to be compressed until it is flush with the surface of the first semicircular piece 1. At the same time, the compression and tight contact of the two inner sealing rings 12 can prevent the joint between the first semicircular piece 1 and the second semicircular piece 2 from becoming less airtight, thus improving the sealing performance of the combined gasket.

[0036] By inserting one oblique post 11 into the oblique hole 9 of the first semicircular piece 1, a slight deformation pulls the reinforcing strip 10, and then inserting another oblique post 11 into the oblique hole 9 of the second semicircular piece 2, the reinforcing strip 10 can be quickly installed. Utilizing the self-locking property of the oblique post 11 and the oblique hole 9, the installed reinforcing strip 10 is difficult to disassemble, further enhancing the installation stability of the first semicircular piece 1 and the second semicircular piece 2.

[0037] When a gasket is worn or damaged and needs replacement, simply adjust the fasteners to a position where the gasket can move freely, and use a tool to cut the reinforcing strips 10 on both sides to quickly separate the first semicircular piece 1 and the second semicircular piece 2. This eliminates the need to completely disassemble and reinstall all fasteners, greatly simplifying the replacement process and avoiding the difficulties in gasket replacement caused by the difficulty in removing traditional fasteners such as bolts.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined gasket with good sealing performance, comprising a first semicircular piece (1) and a second semicircular piece (2), wherein the first semicircular piece (1) and the second semicircular piece (2) can form a complete circular gasket; Its features are, Also includes: The top of one end of the first semicircular piece (1) is fixedly connected to a first overlapping piece (3), and the bottom of the other end of the first semicircular piece (1) is fixedly connected to a second overlapping piece (4). The bottom surface of the first overlapping piece (3) and the top surface of the second overlapping piece (4) are both fixedly connected to a post (5). Among them, a first overlapping groove (6) is provided on the top surface of one end of the second semicircular piece (2), and a second overlapping groove (7) is provided on the bottom surface of the other end of the second semicircular piece (2). Insertion holes (8) are provided on the inner bottom surface of the first overlapping groove (6) and the inner top surface of the second overlapping groove (7). Among them, a reinforcing strip (10) is installed on the outside of the joint between the first semicircular piece (1) and the second semicircular piece (2).

2. The combined gasket with good sealing performance according to claim 1, characterized in that: The outer arc surface of the first semicircular piece (1) and the outer arc surface of the second semicircular piece (2) are symmetrically provided with oblique holes (9), and the inner concave surface of the reinforcing strip (10) is symmetrically fixedly connected with oblique inserts (11).

3. A combined gasket with good sealing performance according to claim 2, characterized in that: The oblique insertion post (11) is inserted into the oblique hole (9), and the reinforcing strip (10) is made of spring steel.

4. A combined gasket with good sealing performance according to claim 1, characterized in that: The inner sides of the first semicircular piece (1) and the second semicircular piece (2) are both fixedly connected with sealing inner rings (12), which are made of rubber.

5. A combined gasket with good sealing performance according to claim 1, characterized in that: The first overlapping piece (3) and the first overlapping groove (6) are engaged, and the second overlapping piece (4) and the second overlapping groove (7) are engaged.

6. A combined gasket with good sealing performance according to claim 1, characterized in that: The insert (5) and the socket (8) are connected.

7. A combined gasket with good sealing performance according to claim 4, characterized in that: The upper surface of the sealing inner ring (12) is higher than the upper surfaces of the first semicircular piece (1) and the second semicircular piece (2), and the rubber sealing inner ring (12) expands radially when compressed.

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