Waterproof silica gel sealing gasket

Abstract

The waterproof silica gel sealing gasket comprises a first limiting plate and a second limiting plate, a sealing processing mechanism is arranged between the first limiting plate and the second limiting plate, and the sealing processing mechanism comprises an inner mounting ring and an outer mounting ring which are fixedly connected to the bottom of the first limiting plate; and the bottoms of the inner mounting ring and the outer mounting ring are fixedly connected with the second limiting plate. According to the waterproof silica gel sealing gasket, the arranged absorbent cotton can be matched with the flow dividing layer to introduce liquid into the inner expansion block and the outer expansion block through the water guide pipe, and the inner expansion block and the outer expansion block can drive the inner silica gel layer and the outer silica gel layer to expand after absorbing water; the first limiting plate and the second limiting plate can be matched with the inner mounting ring and the outer mounting ring to limit the moving directions of the inner silica gel layer and the outer silica gel layer, so that the inner silica gel layer and the outer silica gel layer are conveniently expanded towards the inner side and the outer side of the sealing gasket, the extrusion effect on a to-be-sealed object is conveniently improved, the sealing performance is enhanced, and then good practicability is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing pads, in particular to a waterproof silicone sealing pad. Background Art

[0002] Sealing gaskets are sealing structural parts widely used in various pressure vessels, pipelines, valves and various bottle caps; current sealing gaskets include non-food grade rubber sealing gaskets, food grade silicone sealing gaskets, paper-plastic sealing gaskets, and paper sealing gaskets; in terms of the structure of the sealing gasket, there are single-layer structures of rubber or silicone, composite layer structures of paper-plastic composite, and paper coated with wax layer; sealing gaskets of different textures and structures can be used according to usage needs.

[0003] Among them, silicone pads and sealing pads are a type of product with relatively high market demand among silicone products; they have certain tension, flexibility, excellent insulation, pressure resistance, high temperature resistance, low temperature resistance, stable chemical properties, environmental protection and safety, and no odor. Food-grade silicone pads are non-toxic and tasteless, insoluble in water and any solvents, and are a highly active green product.

[0004] Please refer to a waterproof silicone gasket with announcement number CN210623544U. In this patent, it is proposed that "silicone alone cannot prevent water leakage, and the sealing effect required when encountering different liquids is quite different, so other filling items are required to expand to increase the volume of the gasket, and the filling material inside the existing gasket cannot expand quickly to cause liquid leakage." The above embodiment can absorb more water through the water-absorbing fibers installed inside the expansion layer, so as to improve the overall water absorption effect of the expansion layer, thereby increasing the overall volume of the gasket and better realizing expansion sealing;

[0005] However, the above patent does not have a structure to limit the expansion direction of the expansion layer. When it absorbs water and expands, the overall volume of the sealing gasket is increased. Although it can improve the sealing effect, the utilization rate of the expanded part is low. Not only is the improved sealing effect limited, but it is also easy to cause the sealing gasket to slip, and its practicality is poor. In view of this, the present application proposes a waterproof silicone sealing gasket. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a waterproof silicone sealing gasket, which can expand and increase when the sealing gasket body contacts liquid. The first limiting plate and the second limiting plate can cooperate with the inner mounting ring and the outer mounting ring to limit the expanding object, so that the sealing gasket can expand inwardly or outwardly, thereby facilitating the squeezing effect on the sealed object and enhancing the sealing performance, etc., and solves the problem that the filling material inside the existing sealing gasket cannot expand quickly and causes liquid leakage.

[0007] To achieve the above object, the utility model provides the following technical solution: a waterproof silicone sealing pad, comprising a first limiting plate and a second limiting plate, wherein a sealing processing mechanism is provided between the first limiting plate and the second limiting plate;

[0008] The sealing mechanism comprises an inner mounting ring and an outer mounting ring fixedly connected to the bottom of the first limiting plate, the bottoms of the inner mounting ring and the outer mounting ring are fixedly connected to the second limiting plate, the inner mounting ring is fixedly connected to a side away from the outer mounting ring with an inner silicone layer, and the outer side of the outer mounting ring is fixedly connected to a side away from the inner mounting ring with an outer silicone layer;

[0009] The top of the second limiting plate is fixedly connected to an inner expansion block located inside the inner silicone layer, the top of the second limiting plate is fixedly connected to an outer expansion block located inside the outer silicone layer, and the interior of the second limiting plate is fixedly connected to a water pipe corresponding to the positions of the inner expansion block and the outer expansion block.

[0010] Furthermore, a filter screen is fixedly connected to the bottom of the second limiting plate, and a water-absorbing cotton that fits the top of the filter screen is fixedly connected to the interior of the second limiting plate.

[0011] Furthermore, a mounting groove for accommodating absorbent cotton is provided at the bottom of the second limiting plate, and a diversion layer located on the top of the absorbent cotton is fixedly connected in the mounting groove of the second limiting plate.

[0012] Furthermore, there are multiple inner expansion blocks and outer expansion blocks, and the inner expansion blocks and outer expansion blocks are arranged in a circular shape. The bottom of the first limiting plate is fixedly connected to an isolation layer fixedly connected to the tops of the inner expansion blocks and the outer expansion blocks.

[0013] Furthermore, a waterproof layer is sleeved on the outer side of the inner expansion block and the outer expansion block, and the upper and lower sides of the waterproof layer are respectively fixedly connected to the isolation layer and the second limiting plate, and the top of the first limiting plate is fixedly connected to a protective plate, which is annular.

[0014] Furthermore, the first limiting plate and the second limiting plate are both annular, and the inner mounting ring and the outer mounting ring are fixedly connected to one side thereof that is separated from each other with a connecting block, and the connecting block is embedded in the inner silicone layer and the outer silicone layer.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The waterproof silicone sealing pad, through the provided sealing processing mechanism, when the sealing pad contacts with liquid after installation, the provided absorbent cotton can cooperate with the diversion layer to introduce the liquid into the inner expansion block and the outer expansion block through the water guide pipe. After the inner expansion block and the outer expansion block absorb water, they will drive the inner silicone layer and the outer silicone layer to expand. In this process, the provided first limit plate and the second limit plate can limit the movement of the inner silicone layer and the outer silicone layer to the upper and lower sides, so as to facilitate the inner silicone layer and the outer silicone layer to expand toward the inside and outside of the sealing pad, so as to improve the squeezing effect on the object to be sealed, enhance the sealing, and thus maintain good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the first limiting plate and the second limiting plate of the utility model;

[0019] Figure 3 It is a top sectional view of the structure of the utility model.

[0020] In the figure: 1. first limit plate; 2. inner mounting ring; 3. outer mounting ring; 4. second limit plate; 401. water guide pipe; 5. outer silicone layer; 6. inner silicone layer; 7. connecting block; 8. inner expansion block; 9. outer expansion block; 10. isolation layer; 11. waterproof layer; 12. absorbent cotton; 13. diversion layer; 14. filter; 15. protective plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 In this embodiment, a waterproof silicone sealing pad includes a first limiting plate 1 and a second limiting plate 4, and a sealing processing mechanism is arranged between the first limiting plate 1 and the second limiting plate 4.

[0023] In this embodiment, the sealing processing mechanism includes an inner mounting ring 2 and an outer mounting ring 3 fixedly connected to the bottom of the first limiting plate 1. A protective plate 15 is fixedly connected to the top of the first limiting plate 1. The protective plate 15 is annular, which makes it convenient to use the protective plate 15 to shield and protect the top of the first limiting plate 1, so as to reduce the risk of damage to the first limiting plate 1. The bottom of the inner mounting ring 2 and the outer mounting ring 3 are fixedly connected to the second limiting plate 4.

[0024] Among them, the first limiting plate 1 and the second limiting plate 4 are both annular in shape, and the first limiting plate 1 and the second limiting plate 4 are both made of metal materials, so that the sealing gasket can utilize the structural characteristics of the first limiting plate 1 and the second limiting plate 4 while improving the structural strength of the sealing gasket. On the pipe column structure, the side of the inner mounting ring 2 away from the outer mounting ring 3 is fixedly connected with the inner silicone layer 6, and the outer side of the outer mounting ring 3 away from the inner mounting ring 2 is fixedly connected with the outer silicone layer 5.

[0025] Among them, the inner mounting ring 2 and the outer mounting ring 3 are fixedly connected to the separated sides with a connecting block 7, and the connecting block 7 is embedded in the inner silicone layer 6 and the outer silicone layer 5, so as to facilitate the use of the setting of the connecting block 7, enhance the connection stability between the inner silicone layer 6 and the outer silicone layer 5, and reduce the risk of separation between the inner silicone layer 6 and the outer silicone layer 5.

[0026] In this embodiment, the top of the second limiting plate 4 is fixedly connected to an inner expansion block 8 located inside the inner silicone layer 6, and the top of the second limiting plate 4 is fixedly connected to an outer expansion block 9 located inside the outer silicone layer 5. The number of the inner expansion blocks 8 and the outer expansion blocks 9 are both multiple, and the inner expansion blocks 8 and the outer expansion blocks 9 are arranged in a circular shape, so as to maintain the uniform expansion of the entire sealing gasket.

[0027] Among them, the inner expansion block 8 and the outer expansion block 9 are polymer water-absorbent filaments. Polymer water-absorbent filaments refer to fibers with super high water absorption function. They can absorb fifteen times their own weight in water. The length of the fiber material will not change due to water absorption, and the physical properties of the fiber will not decrease. This is to increase the overall volume of the sealing gasket when it absorbs water and expands, thereby better realizing expansion sealing.

[0028] Among them, the bottom of the first limiting plate 1 is fixedly connected to an isolation layer 10 fixedly connected to the top of the inner expansion block 8 and the outer expansion block 9. The isolation layer 10 is a polyurethane waterproof material. The isolation layer 10 can be used to prevent the first limiting plate 1 from contacting the liquid in the inner expansion block 8 and the outer expansion block 9, thereby reducing the erosion of the liquid on the first limiting plate 1.

[0029] In this embodiment, a waterproof layer 11 is sleeved on the outer side of the inner expansion block 8 and the outer expansion block 9, and the upper and lower sides of the waterproof layer 11 are respectively fixedly connected to the isolation layer 10 and the second limiting plate 4. The waterproof layer 11 is an acrylic waterproof material, which has good ductility and elasticity, and is convenient for preventing liquid from flowing out and affecting the expansion effect when liquid enters the inner expansion block 8 and the outer expansion block 9, and the waterproof layer 11 can change with the change of the volume of the inner expansion block 8 and the outer expansion block 9.

[0030] Among them, the inside of the second limiting plate 4 is fixedly connected with a water pipe 401 corresponding to the position of the inner expansion block 8 and the outer expansion block 9, the bottom of the second limiting plate 4 is fixedly connected with a filter screen 14, and the inside of the second limiting plate 4 is fixedly connected with absorbent cotton 12 that fits the top of the filter screen 14, so that when liquid flows in, the absorbent cotton 12 absorbs the liquid, and the set filter screen 14 can prevent impurities in the liquid from entering the absorbent cotton 12.

[0031] Among them, an installation groove for accommodating the absorbent cotton 12 is opened at the bottom of the second limiting plate 4, and a diversion layer 13 located on the top of the absorbent cotton 12 is fixedly connected in the installation groove of the second limiting plate 4. The diversion layer 13 is a hydrophobic layer, which can effectively separate liquid molecules into water droplets, and facilitate the aggregation of water absorbed by the absorbent cotton 12 into water droplets, so that the liquid can smoothly flow into the inner expansion block 8 and the outer expansion block 9 through the water conduit 401.

[0032] The beneficial effects of the above embodiments are:

[0033] The waterproof silicone sealing gasket, through the provided sealing processing mechanism, when the sealing gasket contacts with liquid after installation, the provided absorbent cotton 12 can cooperate with the diversion layer 13 to introduce the liquid into the inner expansion block 8 and the outer expansion block 9 through the water guide pipe 401. After the inner expansion block 8 and the outer expansion block 9 absorb water, they will drive the inner silicone layer 6 and the outer silicone layer 5 to expand. In this process, the provided first limiting plate 1 and the second limiting plate 4 can limit the movement of the inner silicone layer 6 and the outer silicone layer 5 to the upper and lower sides, so as to facilitate the expansion of the inner silicone layer 6 and the outer silicone layer 5 to the inside and outside of the sealing gasket, so as to improve the squeezing effect on the sealed object, enhance the sealing, and thus maintain good practicality.

[0034] The working principle of the above embodiment is:

[0035] When using the waterproof silicone sealing gasket, it is first necessary to complete the installation of the sealing gasket. When liquid flows in, the absorbent cotton 12 in the second limiting plate 4 can absorb moisture. The absorbed moisture can form water droplets after being polymerized through the diversion layer 13, and flow into the inner expansion block 8 and the outer expansion block 9 through the water guide pipe 401. The inner expansion block 8 and the outer expansion block 9 can expand and become larger after absorbing water. In this process, the first limiting plate 1 and the second limiting plate 4 set can limit the movement of the inner silicone layer 6 and the outer silicone layer 5 to the upper and lower sides, so as to facilitate the cooperation of the inner mounting ring 2 and the outer mounting ring 3 set to limit the movement of the inner silicone layer 6 and the outer silicone layer 5 to the separated side, thereby making the sealing gasket expand to its inner and outer sides, so as to enhance the squeezing effect on the sealed object and maintain good sealing; in addition, the set waterproof layer 11 can cooperate with the isolation layer 10 to prevent the liquid entering the inner expansion block 8 and the outer expansion block 9 from leaking.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof silicone sealing pad, comprising a first limiting plate (1) and a second limiting plate (4), characterized in that: A sealing mechanism is provided between the first limiting plate (1) and the second limiting plate (4); The sealing processing mechanism comprises an inner mounting ring (2) and an outer mounting ring (3) fixedly connected to the bottom of the first limiting plate (1); the bottoms of the inner mounting ring (2) and the outer mounting ring (3) are fixedly connected to the second limiting plate (4); the inner mounting ring (2) is fixedly connected to a side away from the outer mounting ring (3) with an inner silicone layer (6); and the outer mounting ring (3) is fixedly connected to an outer side of a side away from the inner mounting ring (2) with an outer silicone layer (5); The top of the second limiting plate (4) is fixedly connected to an inner expansion block (8) located inside the inner silicone layer (6), the top of the second limiting plate (4) is fixedly connected to an outer expansion block (9) located inside the outer silicone layer (5), and the interior of the second limiting plate (4) is fixedly connected to a water pipe (401) corresponding to the positions of the inner expansion block (8) and the outer expansion block (9).

2. A waterproof silicone sealing pad according to claim 1, characterized in that: The bottom of the second limiting plate (4) is fixedly connected to a filter screen (14), and the interior of the second limiting plate (4) is fixedly connected to a water-absorbing cotton (12) that fits the top of the filter screen (14).

3. A waterproof silicone sealing pad according to claim 2, characterized in that: The bottom of the second limiting plate (4) is provided with a mounting groove for accommodating the absorbent cotton (12), and a diversion layer (13) located on the top of the absorbent cotton (12) is fixedly connected in the mounting groove of the second limiting plate (4).

4. A waterproof silicone sealing pad according to claim 1, characterized in that: The number of the inner expansion blocks (8) and the outer expansion blocks (9) is plural, and the inner expansion blocks (8) and the outer expansion blocks (9) are arranged in a circular shape, and the bottom of the first limiting plate (1) is fixedly connected to an isolation layer (10) fixedly connected to the top of the inner expansion blocks (8) and the outer expansion blocks (9).

5. A waterproof silicone sealing pad according to claim 4, characterized in that: The outer sides of the inner expansion block (8) and the outer expansion block (9) are sleeved with a waterproof layer (11), and the upper and lower sides of the waterproof layer (11) are respectively fixedly connected to the isolation layer (10) and the second limiting plate (4), and the top of the first limiting plate (1) is fixedly connected to a protective plate (15), and the protective plate (15) is annular.

6. A waterproof silicone sealing pad according to claim 1, characterized in that: The first limiting plate (1) and the second limiting plate (4) are both annular in shape, and a connecting block (7) is fixedly connected to one side of the inner mounting ring (2) and the outer mounting ring (3) that are separated from each other, and the connecting block (7) is embedded in the inner silicone layer (6) and the outer silicone layer (5).

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