Plastic soft gasket with good sealing effect

Abstract

The utility model provides a plastic soft gasket with a good sealing effect, which relates to the technical field of plastic gaskets and comprises a transmission end seat and a plastic ring, a nylon support ring is arranged at the bottom of the plastic ring, and a rectangular groove is arranged at the bottom of the nylon support ring close to the outer edge. The nylon supporting ring is arranged at the bottom of the plastic ring, an inclined opening is formed in the position, close to the edge of the inner side, of the bottom of the nylon supporting ring, the inner side of the nylon supporting ring is flush with the inner side of the plastic ring, a side ring gasket is fixed to the position, close to the edge of the outer side, of the bottom of the plastic ring, and an annular groove is formed in the top of the plastic ring. The bottom edge of the plastic ring can be supported through the nylon supporting ring, the situation that the bottom edge of the plastic ring is soft, consequently, deformation is generated, and the sealing performance of the butt joint is affected is prevented, and the rectangular groove and the bevel opening are formed in the bottom of the nylon supporting ring, so that the sealing performance of the bottom is enhanced when the nylon supporting ring is clamped into the mounting groove subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic gaskets, in particular to a plastic soft gasket with good sealing effect. Background Art

[0002] Plastics exhibit "cold flow" properties, causing plastic gaskets to undergo plastic deformation, or creep, under prolonged, continuous loads. This limits their application. Tightening bolts to achieve a tight seal, exceeding a specific compressive stress, can cause the gasket to experience "cold flow" (creep) and flatten. These shortcomings directly impact the gasket's sealing performance and service life.

[0003] At present, when sealing the transmission interface of mechanical equipment such as oil tanks or reducers, plastic sealing rings are usually used to seal them. However, although the plastic sealing ring has good sealing performance during use, due to its relatively soft texture, the edge of the sealing ring is easily deformed and aged, affecting its sealing effect. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a plastic soft gasket with good sealing effect.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A plastic soft gasket with good sealing effect includes a transmission end seat and a plastic ring. A nylon support ring is provided at the bottom of the plastic ring. A rectangular groove is provided at the bottom of the nylon support ring near the outer edge. An oblique opening is provided at the bottom of the nylon support ring near the inner edge. The inner side of the nylon support ring is flush with the inner side of the plastic ring. A side ring gasket is fixed to the bottom of the plastic ring near the outer edge. An annular groove is provided at the top of the plastic ring.

[0007] Optionally, a mounting groove is provided on the inner side of the transmission end seat, the mounting groove extends through to the top of the transmission end seat, and the plastic ring is arranged inside the mounting groove.

[0008] Optionally, a plurality of arc-shaped grooves are formed at equal intervals on the outer surface of the plastic ring, and the outer surface of the plastic ring fits in contact with the inner wall of the mounting groove.

[0009] Optionally, a trapezoidal ring is fixed to the inner bottom surface of the mounting groove near the inner edge, and a rectangular ring is fixed to the inner bottom surface of the mounting groove.

[0010] Optionally, the rectangular ring is engaged with the inside of the rectangular groove, and the trapezoidal ring is engaged with the inside of the oblique opening.

[0011] Optionally, a side ring opening is provided at the edge of the inner bottom surface of the mounting groove, and the side ring gasket is engaged inside the side ring opening.

[0012] Optionally, a clamping ring is provided inside the annular groove, a connecting flange is provided on the top of the clamping ring, and the bottom of the connecting flange fits in with the top of the transmission end seat.

[0013] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0014] 1. In the present invention, a nylon support ring is provided at the bottom of the plastic ring. The nylon support ring can support the bottom edge of the plastic ring to prevent the bottom edge of the plastic ring from being soft and deforming, thereby affecting the sealing of the joint. A rectangular groove and an oblique opening are provided at the bottom of the nylon support ring to facilitate subsequent engagement in the installation groove and enhance the sealing of the bottom.

[0015] 2. In the present invention, the rectangular ring is clamped inside the rectangular groove to form a seal between the nylon support ring and the bottom of the installation groove, and the trapezoidal ring is clamped inside the oblique opening to strengthen the seal of the bottom of the nylon support ring. A side ring opening is opened at the edge of the inner bottom surface of the installation groove, and then the side ring gasket is clamped inside the side ring opening to further strengthen the seal of the bottom of the nylon support ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of a plastic soft gasket with good sealing effect proposed by the utility model;

[0018] Figure 2 The utility model provides a schematic diagram of a cross-sectional three-dimensional structure of a plastic soft gasket with good sealing effect;

[0019] Figure 3 The utility model provides a schematic diagram of a sectional three-dimensional structure of a plastic ring in a plastic soft gasket with good sealing effect.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Transmission end seat; 2. Plastic ring; 3. Clamping ring; 4. Connecting flange; 5. Mounting groove; 6. Side ring opening; 7. Rectangular ring; 8. Trapezoidal ring; 9. Annular groove; 10. Arc groove; 11. Side ring gasket; 12. Nylon support ring; 13. Rectangular groove; 14. Bevel opening.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Example 1, as Figure 1-3 As shown, the utility model provides a technical solution of a plastic soft gasket with good sealing effect: it includes a transmission end seat 1 and a plastic ring 2, a nylon support ring 12 is provided at the bottom of the plastic ring 2, a rectangular groove 13 is provided at the bottom of the nylon support ring 12 near the outer edge, and a bevel 14 is provided at the bottom of the nylon support ring 12 near the inner edge. The inner side of the nylon support ring 12 is flush with the inner side of the plastic ring 2, a side ring gasket 11 is fixed to the bottom of the plastic ring 2 near the outer edge, and an annular groove 9 is provided at the top of the plastic ring 2.

[0025] The effect achieved by the entire embodiment 1 is that when using the present device, a nylon support ring 12 is provided at the bottom of the plastic ring 2. The nylon support ring 12 can support the bottom edge of the plastic ring 2 to prevent the bottom edge of the plastic ring 2 from being soft and deforming, thereby affecting the sealing of the joint. A rectangular groove 13 and an oblique opening 14 are provided at the bottom of the nylon support ring 12 to facilitate the subsequent engagement in the installation groove 5 to enhance the sealing of the bottom.

[0026] Example 2, as Figure 1-3 As shown, a mounting groove 5 is provided on the inner side of the transmission end seat 1, and the mounting groove 5 extends to the top of the transmission end seat 1. The plastic ring 2 is arranged inside the mounting groove 5. A plurality of arc grooves 10 are equidistantly provided on the outer surface of the plastic ring 2. The outer surface of the plastic ring 2 fits the inner wall of the mounting groove 5. A trapezoidal ring 8 is fixed to the inner bottom surface of the mounting groove 5 near the inner edge. A rectangular ring 7 is fixed to the inner bottom surface of the mounting groove 5. The rectangular ring 7 is engaged in the inside of the rectangular groove 13. The trapezoidal ring 8 is engaged in the inside of the oblique opening 14. A side ring opening 6 is provided on the inner bottom surface of the mounting groove 5 at the edge. A side ring gasket 11 is engaged in the inside of the side ring opening 6. A clamping ring 3 is provided inside the annular groove 9. A connecting flange 4 is provided on the top of the clamping ring 3. The bottom of the connecting flange 4 fits the top of the transmission end seat 1.

[0027] The effect achieved by the entire embodiment 2 is that the rectangular ring 7 is engaged inside the rectangular groove 13, which can form a seal between the nylon support ring 12 and the bottom of the mounting groove 5, and the trapezoidal ring 8 is engaged inside the oblique opening 14, which can strengthen the seal of the bottom of the nylon support ring 12, and a side ring opening 6 is opened at the edge of the inner bottom surface of the mounting groove 5, and then the side ring gasket 11 is engaged inside the side ring opening 6, which can further strengthen the seal of the bottom of the nylon support ring 12. It can be seen that three layers of seals are set at the contact part between the plastic ring 2 and the bottom of the mounting groove 5, so that the sealing of the docking part is significantly improved. Finally, when locking, the clamping ring 3 is engaged inside the annular groove 9, so that the plastic ring 2 is installed and compressed to prevent loosening. At the same time, the compression force generated can improve the sealing strength of the contact part.

[0028] Working principle: When using this device, a nylon support ring 12 is set at the bottom of the plastic ring 2. The nylon support ring 12 can support the bottom edge of the plastic ring 2 to prevent the bottom edge of the plastic ring 2 from being soft and deforming, which affects the sealing of the joint. A rectangular groove 13 and an oblique opening 14 are opened at the bottom of the nylon support ring 12 to facilitate the subsequent engagement with the interior of the mounting groove 5 to enhance the sealing of the bottom. The rectangular ring 7 is engaged with the interior of the rectangular groove 13 to form a seal between the nylon support ring 12 and the bottom of the mounting groove 5, and the trapezoidal ring 8 is engaged with the interior of the oblique opening 14. , the sealing of the bottom of the nylon support ring 12 can be strengthened, and a side ring opening 6 is opened at the edge of the inner bottom surface of the installation groove 5, and then the side ring gasket 11 is clamped inside the side ring opening 6, which can further strengthen the sealing of the bottom of the nylon support ring 12. It can be seen that three layers of sealing are set at the contact part between the plastic ring 2 and the bottom of the installation groove 5, so that the sealing of the docking part is significantly improved. Finally, when locking, the clamping ring 3 is clamped inside the annular groove 9, so that the plastic ring 2 is installed and compressed to prevent loosening. At the same time, the compression force generated can improve the sealing strength of the contact part.

[0029] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A plastic soft gasket with good sealing effect, comprising a transmission end seat (1) and a plastic ring (2), characterized in that: A nylon support ring (12) is provided at the bottom of the plastic ring (2), a rectangular groove (13) is provided at the bottom of the nylon support ring (12) near the outer edge, an oblique opening (14) is provided at the bottom of the nylon support ring (12) near the inner edge, the inner side of the nylon support ring (12) is flush with the inner side of the plastic ring (2), a side ring gasket (11) is fixed at the bottom of the plastic ring (2) near the outer edge, and an annular groove (9) is provided at the top of the plastic ring (2).

2. A plastic soft gasket with good sealing effect according to claim 1, characterized in that: The inner side of the transmission end seat (1) is provided with a mounting groove (5), the mounting groove (5) penetrates to the top of the transmission end seat (1), and the plastic ring (2) is arranged inside the mounting groove (5).

3. The plastic soft gasket with good sealing effect according to claim 2, characterized in that: The outer surface of the plastic ring (2) is provided with a plurality of arc-shaped grooves (10) at equal intervals, and the outer surface of the plastic ring (2) is in contact with the inner wall of the mounting groove (5).

4. The plastic soft gasket with good sealing effect according to claim 3, characterized in that: A trapezoidal ring (8) is fixed on the inner bottom surface of the installation groove (5) near the inner edge, and a rectangular ring (7) is fixed on the inner bottom surface of the installation groove (5).

5. The plastic soft gasket with good sealing effect according to claim 4, characterized in that: The rectangular ring (7) is engaged in the interior of the rectangular groove (13), and the trapezoidal ring (8) is engaged in the interior of the oblique opening (14).

6. The plastic soft gasket with good sealing effect according to claim 5, characterized in that: The inner bottom surface of the installation groove (5) is provided with a side ring opening (6) at the edge, and the side ring gasket (11) is engaged inside the side ring opening (6).

7. The plastic soft gasket with good sealing effect according to claim 6, characterized in that: A clamping ring (3) is provided inside the annular groove (9), a connecting flange (4) is provided on the top of the clamping ring (3), and the bottom of the connecting flange (4) is in contact with the top of the transmission end seat (1).

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