Sealing gasket

Abstract

The utility model relates to the field of sealing structures, in particular to a sealing gasket which comprises a gasket body, an appearance flange structure arranged on the gasket body, a fixing hole boss structure arranged on the gasket body, a glue blocking boss structure arranged on the first end face of the gasket body and a sealing boss structure arranged on the second end face of the gasket body. According to the sealing gasket, before sealing installation is carried out, after the interior of a glue filling area formed by the glue blocking boss structure is filled with glue, the sealing gasket is matched with the glue, so that the sealing gasket can be used for sealing on a relatively uneven surface, the sealing effect of the sealing gasket and an installation surface is enhanced, the application range of the sealing gasket and the installation surface is widened, the leakage probability is reduced, and the service life of the sealing gasket is prolonged. And the universality and adaptability of the component are improved.

Description

Technical Field

[0001] The utility model relates to the field of sealing structures, in particular to a gasket. Background Technique

[0002] A gasket is a material used for sealing in machinery, equipment or pipelines, usually arranged between two connecting surfaces for filling to achieve a sealing effect. At present, there are various types of sealing structures, and commonly used sealing structures include O-rings, O-shaped gaskets, etc. Rubber gaskets of various components are relatively common sealing parts. However, in order to improve the sealing effect or for special installation positions, there are also some targeted sealing structures.

[0003] For example, the Chinese patent application with the publication number CN221300099U and the publication date of July 9, 2024 proposed a Teflon rubber composite sealing ring, including a composite sealing ring. The composite sealing ring includes a rubber ring, a support sleeve and a support ring plate. The support sleeve is arranged outside the rubber ring. An annular connecting protrusion is arranged on the outer side wall of the rubber ring, and an annular connecting groove is opened on the inner side wall of the support sleeve. The annular connecting protrusion is connected with the annular connecting groove in a matching manner.

[0004] During use, through the cooperation of the annular connecting protrusion and the annular connecting groove, after the rubber ring deforms, an effective connection can still be achieved between the rubber ring and the support sleeve.

[0005] In view of the above related technologies, during connection, it is still necessary to rely on the rubber ring to fit on the connecting surface for sealing. Generally, rubber rings are used on relatively flat installation surfaces. Even so, there may be a situation where the fit is not firm, resulting in poor sealing. In actual assembly, in order to ensure installation on uneven surfaces, the thickness and flexibility of the rubber gasket itself are often relied on to make up for the unevenness of the installation surface. This has a greater impact on the incoming material inspection and installation inspection of products during the production process. Content of the Utility Model

[0006] In order to improve the sealing effect of the gasket and enable the gasket to seal better on a relatively uneven plane, the utility model provides a gasket.

[0007] The utility model provides a gasket, adopting the following technical scheme:

[0008] A gasket includes a gasket body. An installation hole is arranged at the central position of the gasket body. The two opposite end faces of the gasket body are respectively a first end face and a second end face;

[0009] On the first end face of the gasket body, a first glue-blocking boss and a second glue-blocking boss are arranged. The first glue-blocking boss is annularly arranged around the mounting hole, the second glue-blocking boss is annularly arranged around the first glue-blocking boss, and the first glue-blocking boss and the second glue-blocking boss are concentrically arranged;

[0010] A plurality of fixing holes penetrating through the gasket body are further arranged on the gasket body, and the plurality of fixing holes are evenly arranged in a circumferential distribution around the second glue-blocking boss.

[0011] By adopting the above technical solution, a glue filling area is formed between the first glue-blocking boss and the second glue-blocking boss. When installing and sealing the second end face of the gasket body, first apply a part of glue evenly in the glue filling area, and then attach the first end face to the installation surface and perform extrusion installation through the fixing holes. In this way, the two glue-blocking structure designs of the first glue-blocking boss and the second glue-blocking boss can effectively prevent the glue from being extruded and overflowing, reducing the difficulty of on-site operation and improving the operation efficiency at the same time; with the cooperation of the sealing gasket and the glue, it can seal on a relatively uneven surface, enhancing the sealing effect and the application range between the sealing gasket and the installation surface, reducing the probability of leakage, and improving the versatility and adaptability of the components.

[0012] Optionally, the first glue-blocking boss and the second glue-blocking boss have the same height, and a ring groove is formed between the first glue-blocking boss and the second glue-blocking boss. The cross-section of the ring groove is trapezoidal with a larger top and a smaller bottom.

[0013] By adopting this technical solution, the opposite end faces of the first glue-blocking boss and the second glue-blocking boss are arranged as a ring groove on the first end face, so that the cross-section of the glue filling area formed between the first glue-blocking boss and the second glue-blocking boss is trapezoidal, and the end of the trapezoid away from the first end face is the top, and the end of the trapezoid close to the first end face is the bottom. After filling the glue into the glue filling area, the glue will flow along the inner end face of the ring groove under the extrusion of the installation surface. In this way, not only can the contact area between the glue and the first end face be increased to improve the sealing effect, but also the probability of the glue being extruded and overflowing can be reduced, and the difficulty of on-site operation can be alleviated.

[0014] Optionally, on the first end face of the gasket body, a first fixing hole boss corresponding to each of the plurality of fixing holes is further arranged. The first fixing hole boss is annularly arranged around the fixing hole, and the height of the first fixing hole boss is lower than or equal to the height of the first glue-blocking boss.

[0015] By adopting the above technical solution, when installing the gasket, a fastener is used to pass through the boss of the first fixing hole, and the boss of the first fixing hole is attached to the installation surface. The fastener squeezes and deforms the boss of the first fixing hole to form a seal. Moreover, since the height of the boss of the first fixing hole is equal to and / or the same as the height of the first rubber-blocking boss, when the boss of the first fixing hole is attached to the installation surface, it will not affect the seals between the first rubber-blocking boss, the second rubber-blocking boss and the installation surface. In this way, the boss of the first fixing hole can provide support for the installation of the fastener, reduce the damage of the gasket body caused by extrusion deformation, extend the service life of the gasket, and at the same time, the boss of the first fixing hole can also seal the fixing hole, reduce the probability of rainwater leakage from the fastener and the installation point of the first end face, and improve the sealing performance.

[0016] Optionally, a first edge boss is further provided on the first end face. The first edge boss is arranged in a ring shape and is arranged along the outer peripheral surface of the gasket body. The height of the first edge boss is higher than or equal to the height of the first rubber-blocking boss.

[0017] By adopting the above technical solution, due to the settings of the first rubber-blocking boss, the second rubber-blocking boss and the boss of the first fixing hole, there will be a certain gap after the first end face is attached and sealed to the installation surface. The first edge boss attached to the installation surface can block and seal this formed gap, reduce the entry of dust particles or water flow into this gap, and further improve the sealing effect; in addition, the setting of the first edge can also block the connection gap between the seal and the installation surface, making the connection part more beautiful.

[0018] Optionally, the first edge boss extends radially from the first end face in a direction away from the installation hole.

[0019] By adopting this technical solution, when the first end face and the installation surface are sealed, the first edge boss will be squeezed and deformed. The first edge boss extends from the first end face in a direction away from the installation hole. When the first edge boss is squeezed, it can generate a larger deformation amount, making the sealing effect of the first edge boss better and helping to enhance the sealing performance of the first edge boss.

[0020] Optionally, a sealing boss is provided on the second end face of the gasket body. The sealing boss is arranged in a ring shape around the installation hole and is arranged inside the whole of the plurality of fixing holes.

[0021] By adopting the above technical solution, when installing the gasket, the gasket is sleeved on the mounting member through the mounting hole at the central position. Align the fixing holes on the gasket body with the fixing holes on the mounting member, and make the first end face of the gasket body fit on the mounting member. After fastening the gasket to the mounting member through fasteners, a sealing structure will be formed between the second end face and the connection surface of the mounting member by the sealing boss. In this way, the reliability of the seal between the first end face and the mounting member can be improved, and the probability of water leakage between the gasket and the mounting member can be reduced.

[0022] Optionally, second fixing hole bosses corresponding to the plurality of fixing holes one by one are provided on the second end face. The second fixing hole bosses are annularly arranged around the fixing holes, and the height of the second fixing hole bosses is lower than or equal to the height of the sealing boss.

[0023] By adopting the above technical solution, the second fixing hole bosses have the same effect as the first fixing hole bosses. They can support the fasteners on the second end face, extend the service life of the gasket, and reduce the probability of rainwater leakage from the fasteners and the installation points on the second end face, improving the sealing performance.

[0024] Optionally, a second edge-retaining boss is provided on the second end face. The second edge-retaining boss is annular and is arranged along the outer peripheral surface of the gasket body. The height of the second edge-retaining boss is higher than or equal to the height of the sealing boss.

[0025] By adopting the above technical solution, when installing the gasket on the mounting member, the inner peripheral surface of the second edge-retaining boss is closely attached to the outer peripheral surface of the mounting member. Due to the settings of the sealing boss and the second fixing hole bosses, there will be a certain gap after the connection surface between the second end face and the mounting member is fitted and sealed. The design of the second edge-retaining boss fitting the outer peripheral surface of the mounting member can block this formed gap, reducing the entry of dust particles or water flow into this gap, further improving the sealing effect; in addition, the setting of the second edge-retaining boss can also block the connection gap between the seal and the mounting member, making the connection part more beautiful.

[0026] In summary, the utility model includes at least one of the following beneficial technical effects:

[0027] By providing a first glue-blocking boss and a second glue-blocking boss on the end face where the gasket is connected to the mounting surface, a glue filling area is formed between the first glue-blocking boss and the second glue-blocking boss. Before performing the sealing installation, after filling the glue filling area with glue, the gasket cooperates with the action of the glue, enabling it to seal on relatively uneven surfaces, enhancing the sealing effect and the applicable range of the gasket and the mounting surface, reducing the probability of leakage, and improving the versatility and adaptability of the components.

[0028] The design of the two rubber-blocking structures of the first rubber-blocking boss and the second rubber-blocking boss can effectively prevent the extrusion and overflow of the rubber liquid, reduce the difficulty of on-site operation and improve the operation efficiency at the same time.

[0029] Fixed-hole bosses are correspondingly arranged around the fixed holes of the gasket. On the one hand, it can provide support for the installation of fasteners, reduce the damage of the gasket caused by the extrusion deformation of the gasket body, and extend the service life of the gasket; on the other hand, it can also seal the fixed holes, reduce the probability of rainwater leakage from the fasteners and the installation points of the first end face, and improve the sealing performance.

[0030] Sealing bosses are arranged on the end face where the gasket is connected to the installation part. During installation, the sealing bosses are squeezed between the installation part and the gasket for sealing, which improves the reliability of the seal between the second end face and the installation part and reduces the probability of water leakage between the gasket and the installation part.

[0031] Edge-blocking bosses are arranged on the outer peripheral surface of the gasket, which further increases the sealing effect and makes the installation more beautiful at the same time. Description of the Drawings

[0032] Figure 1 is the overall structure schematic diagram of the embodiment of the present utility model;

[0033] Figure 2 is the schematic diagram of another perspective of the overall structure of the embodiment of the present utility model;

[0034] Figure 3 is the installation effect schematic diagram of the embodiment of the present utility model;

[0035] Figure 4 is the front view of the first end face of the embodiment of the present utility model;

[0036] Figure 5 is the front view of the second end face of the embodiment of the present utility model;

[0037] Figure 6 is Figure 5 the A-A cross-sectional view in

[0038] Figure 7 is Figure 6 the partial enlarged schematic diagram at I in

[0039] Description of the Reference Numerals: 100, gasket body; 110, first end face; 120, second end face; 130, mounting hole; 140, fixing hole; 200, first rubber-blocking boss; 300, second rubber-blocking boss; 400, first fixing-hole boss; 500, first edge-blocking boss; 600, sealing boss; 700, second fixing-hole boss; 800, second edge-blocking boss; 900, mounting part. Detailed Embodiment

[0040] The following is a further detailed description of the present utility model in conjunction with Figures 1 to 7 the following.

[0041] An embodiment of the present utility model discloses a gasket. Referring to Figures 1 to 2 , a gasket mainly includes a gasket body 100, an appearance edge structure provided on the gasket body 100, a fixing hole boss structure provided on the gasket body 100, a glue-blocking boss structure provided on the first end face 110 of the gasket body 100, and a sealing boss structure provided on the second end face 120 of the gasket body 100.

[0042] Referring to the attached Figure 1 to the attached Figure 2 , the gasket body 100 is a quadrilateral structure with an arc-shaped edge. An installation hole 130 is provided at the middle position of the gasket body 100, and four fixing holes 140 are correspondingly provided at the four corners of the gasket body 100. Among them, the end face of the gasket body 100 in contact with the fixing component is called the first end face 110, and the end face of the gasket body 100 in contact with the installation component 900 is the second end face 120.

[0043] Note that the edge shape of the gasket body 100 is determined according to the shape of the installation component 900 it is to cooperate with. According to the different shapes of the installation component 900, the edge of the gasket body 100 can also be set to be circular or other shapes.

[0044] Referring to the attached Figure 4 to the attached Figure 7 , a glue-blocking boss structure is provided on the first end face 110. Among them, the glue-blocking boss structure includes a first glue-blocking boss 200 and a second glue-blocking boss 300. Both the first glue-blocking boss 200 and the second glue-blocking boss 300 are arranged in a circular ring shape between the installation hole 130 and the fixing holes 140 on the first end face 110. The first glue-blocking boss 200, the second glue-blocking boss 300, and the installation hole 130 are concentrically arranged. The first glue-blocking boss 200 is arranged between the second glue-blocking boss 300 and the installation hole 130. The end faces of the first glue-blocking boss 200 and the second glue-blocking boss 300 facing each other and the first end face 110 form an annular groove with a trapezoidal cross-section. The end of the trapezoid close to the first end face 110 is the bottom of the trapezoid, and the end of the trapezoid far from the first end face 110 is the top of the trapezoid. When applying glue, the annular groove forms a glue filling area. By setting the heights of the first glue-blocking boss 200 and the second glue-blocking boss 300 to be the same, the flow of the glue in the annular groove between the first glue-blocking boss 200 and the second glue-blocking boss 300 can be restricted. After pre-applying glue in the glue filling area before installation and then performing sealing installation, the efficiency of the glue application operation and the sealing effect of the gasket can be improved.

[0045] Referring to the attached Figure 4 and the attached Figure 7, four first fixing hole bosses 400 are further provided on the first end face 110. The four first fixing hole bosses 400 are respectively arranged around the four fixing holes 140 and are coaxially arranged with the corresponding fixing holes 140. The height of the first fixing hole boss 400 is less than or equal to the height of the first rubber-blocking boss 200. For the convenience of installation and sealing, in this embodiment, the height of the first fixing hole boss 400 is set to be the same as the height of the first rubber-blocking boss 200. In other embodiments, the height of the first fixing hole boss 400 can also be less than the height of the first rubber-blocking boss 200, so that when the first fixing hole boss 400 plays a supporting role, the fastener can still compress the first rubber-blocking boss 200 for sealing.

[0046] Refer to the appendix Figure 4 and the appendix Figure 7 , a first edge-retaining boss 500 is provided on the outer edge of the first end face 110. The first edge-retaining boss 500 is arranged along the outer edge of the gasket body 100, and finally forms an annular structure having the same shape as the outer peripheral surface of the gasket body 100. The first edge-retaining boss 500 extends in the radial direction from the first end face 110 towards the direction away from the mounting hole 130, so that the outer edge of the first edge-retaining boss 500 forms a shape that opens outwards. In order to enable the first edge-retaining boss 500 to seal better when contacting the mounting surface of the fixing component, in this embodiment, the height of the first edge-retaining boss 500 is set to be greater than the height of the first rubber-blocking boss 200.

[0047] Refer to the appendix Figure 5 and the appendix Figure 7 , a sealing boss 600 is provided on the second end face 120. The sealing boss 600 is arranged in an annular shape between the mounting hole 130 and the fixing hole 140. The sealing boss 600 is concentrically arranged with the mounting hole 130. In order to enable the sealing boss 600 to deform and seal better when being extruded, in this embodiment, the cross-section of the sealing boss 600 is semi-circular. In other embodiments, the cross-section of the sealing boss 600 can also be a conical shape or a polygonal shape, etc.

[0048] Refer to the appendix Figure 5 and the appendix Figure 7 , second fixing hole bosses 700 corresponding to the first fixing hole bosses 400 one by one are provided on the second end face 120. The height of the second fixing hole boss 700 is lower than or equal to the height of the sealing boss 600. In this embodiment, in order to reduce the manufacturing difficulty, the height of the second fixing hole boss 700 is set to be the same as the height of the sealing boss 600. In other embodiments, the height of the second fixing hole boss 700 can also be lower than the height of the sealing boss 600, so that when the fastener passes through the second fixing hole boss 700 for sealing, the sealing boss 600 can be extruded, thereby achieving a better sealing effect.

[0049] Refer to the appendix Figure 5and appendix Figure 7 On the second end face 120, a second edge-retaining boss 800 is provided. The second edge-retaining boss 800 is arranged along the outer edge of the gasket body 100, and finally forms an annular structure having the same shape as the outer peripheral surface of the gasket body 100. The height of the second edge-retaining boss 800 is greater than or equal to the height of the sealing boss 600. In this embodiment, in order to make the inner peripheral surface of the second edge-retaining boss 800 better fit the outer peripheral surface of the mounting member 900, the height of the second edge-retaining boss 800 is set to be greater than the height of the sealing boss 600. In other embodiments, the height of the second edge-retaining boss 800 may also be equal to the height of the sealing boss 600, as long as the small gap generated when the sealing boss 600 is compressed can be blocked after the sealing boss 600 is compressed and installed.

[0050] The implementation principle of a sealing gasket according to an embodiment of the present invention is as follows: The mounting member 900 passes through the mounting hole 130 in the middle of the second end face 120 of the gasket body 100, so that the component fits on the sealing boss 600 of the second end face 120. The sealing gasket is adjusted to make the fastener of the mounting member 900 concentric with the fixing hole 140 of the sealing gasket, and make the second edge-retaining boss 800 of the second end face 120 fit the outer edge of the mounting member 900. The mounting member 900 and the sealing gasket are integrally turned over 180 degrees, and the glue liquid is injected into the groove formed by the first glue-retaining boss 200 and the second glue-retaining boss 300 on the first end face 110 of the sealing gasket by using a glue gun and a special glue head. The second end face 120 of the sealing gasket is integrally attached to the fixed component to be installed, and is integrally fixed on the mounting surface of the fixed component by using a fastener supported by the fixed hole boss structure.

[0051] In summary, by providing the first glue-retaining boss 200 and the second glue-retaining boss 300 on the sealing gasket, a glue liquid filling area is formed between the first glue-retaining boss 200 and the second glue-retaining boss 300. When the sealing gasket is installed on the mounting surface of the fixing member, the sealing gasket cooperates with the action of the glue liquid, so that it can be sealed on a relatively uneven surface, enhancing the sealing effect and the applicable range of the sealing gasket and the mounting surface; a sealing boss 600 is provided on another end face of the sealing gasket, which can increase or decrease the sealing effect between the sealing gasket and the mounting member 900; a rib boss is provided on the outer peripheral surface of the sealing gasket, which can reduce dust particles or water flow from entering the small gap generated by the rib boss of this sealing gasket, further increasing the sealing effect, and at the same time can block this gap, making it more beautiful.

[0052] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A gasket, comprising a gasket body (100), an installation hole (130) is provided at the center of the gasket body (100), and the two opposite end faces of the gasket body (100) are respectively a first end face (110) and a second end face (120), characterized in that: A first glue-blocking boss (200) and a second glue-blocking boss (300) are provided on the first end face (110) of the gasket body (100). The first glue-blocking boss (200) is annularly arranged around the installation hole (130), the second glue-blocking boss (300) is annularly arranged around the first glue-blocking boss (200), and the first glue-blocking boss (200) and the second glue-blocking boss (300) are respectively concentric with the installation hole (130); A plurality of fixing holes (140) penetrating through the gasket body (100) are further provided on the gasket body (100), and the plurality of fixing holes (140) are evenly annularly arranged around the second glue-blocking boss (300).

2. The gasket according to claim 1, wherein: The first glue-blocking boss (200) and the second glue-blocking boss (300) have the same height, and an annular groove is formed between the first glue-blocking boss (200) and the second glue-blocking boss (300), and the cross-section of the annular groove is trapezoidal with a large top and a small bottom.

3. A gasket according to claim 2, characterized in that: A first fixing hole boss (400) corresponding to each of the plurality of fixing holes (140) is further provided on the first end face (110) of the gasket body (100). The first fixing hole boss (400) is annularly arranged around the fixing hole (140), and the height of the first fixing hole boss (400) is lower than the height of the first glue-blocking boss (200), or equal to the height of the first glue-blocking boss (200).

4. A gasket according to claim 2, characterized in that: A first edge-blocking boss (500) is further provided on the first end face (110). The first edge-blocking boss (500) is annularly arranged, the first edge-blocking boss (500) is arranged along the outer peripheral surface of the gasket body (100), and the height of the first edge-blocking boss (500) is higher than the height of the first glue-blocking boss (200), or equal to the height of the first glue-blocking boss (200).

5. A gasket according to claim 4, characterized in that: The first edge-blocking boss (500) extends radially from the first end face (110) in a direction away from the installation hole (130).

6. A gasket according to any one of claims 1 to 5, characterized in that: A sealing boss (600) is provided on the second end face (120) of the gasket body (100). The sealing boss (600) is annularly arranged around the installation hole (130), and the sealing boss (600) is arranged inside the whole of the plurality of fixing holes (140).

7. A gasket according to claim 6, characterized in that: A second fixing hole boss (700) corresponding to each of the plurality of fixing holes (140) is provided on the second end face (120). The second fixing hole boss (700) is annularly arranged around the fixing hole (140), and the height of the second fixing hole boss (700) is lower than the height of the sealing boss (600), or equal to the height of the sealing boss (600).

8. A gasket according to claim 6, characterized in that: A second retaining edge boss (800) is provided on the second end face (120). The second retaining edge boss (800) is annular and is arranged along the outer peripheral surface of the gasket body (100). The height of the second retaining edge boss (800) is higher than or equal to the height of the sealing boss (600).

Images