Damping waterproof gasket

Abstract

The utility model relates to the field of gaskets, and particularly discloses a damping waterproof gasket which comprises a gasket body, a plurality of water collecting grooves annularly arranged with the axis of the gasket body as the center are formed in the end faces of the upper side and the lower side of the gasket body, and a plurality of discharging and sucking cavities communicated with the water collecting grooves are formed in the gasket body. The drainage and suction cavity can absorb moisture in the water collecting tank through deformation and discharge the moisture out of the pad body, the pad body is placed between the connecting piece and the connected piece, and in the operation process of mechanical equipment, due to the fact that the gasket is in a continuous reciprocating deformation state, the drainage and suction cavity is in a continuous reciprocating deformation state; by means of the arrangement, water permeating into the pad body, the connecting piece and the connected piece can be sucked into the drainage and suction cavity, the water is extruded out of the pad body through the drainage cavity and the supporting pipe along with deformation of the drainage and suction cavity, and then the water is prevented from entering the connecting piece or the connected piece; the gasket has the characteristics of high precision, high elasticity and wear resistance, and the waterproofness and shock absorption performance of the gasket are improved.

Description

Technical Field

[0001] The utility model relates to the field of washers, in particular to a shock-absorbing and waterproof washers. Background Art

[0002] Rubber gaskets are mainly used for sealing and shock absorption of various machinery, instruments, axles, and pipelines. Since mechanical equipment will generate vibrations during operation, the rubber gaskets connecting the components will be in a reciprocating deformation process for a long time. If moisture appears at the connection between the rubber gasket and the component, the reciprocating deformation of the rubber gasket may cause negative pressure to form inside the connection between the rubber gasket and the component. It is very easy to absorb moisture at the connection between the rubber gasket and the component, and then squeeze the rubber gasket to squeeze the moisture into the interior of the component, causing rust inside the component, which will have a great impact on the operation of the mechanical equipment in the long run.

[0003] Therefore, it is necessary to design a shock-absorbing and waterproof gasket to alleviate the above-mentioned technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a shock-absorbing and waterproof gasket to overcome the above-mentioned defects in the prior art.

[0005] According to the utility model, a shock-absorbing and waterproof gasket includes a pad body, and the upper and lower end surfaces of the pad body are each provided with a plurality of water collecting grooves arranged in a ring shape with the axis of the pad body as the center, and the pad body is provided with a plurality of suction and drainage cavities connected to the water collecting grooves. The suction and drainage cavities can absorb the water in the water collecting grooves through deformation and discharge it to the outside of the pad body.

[0006] Through the above technical solution, the pad body is placed between the connecting member and the connected member. During the operation of the mechanical equipment, the pad body is in a state of continuous reciprocating deformation due to the vibration between the connecting member and the connected member, and then the suction cavity is in a state of continuous reciprocating deformation, so that the moisture that has penetrated into the pad body, the connecting member and the connected member can be sucked into the suction cavity and then squeezed out of the pad body, thereby preventing moisture from entering the connecting member or the connected member.

[0007] Preferably, the cross-section of the water collecting trough is an inverted trapezoid, and a water through hole is provided between the bottom wall of the water collecting trough and the suction and discharge cavity.

[0008] Through the above technical solution, the inverted trapezoidal water collection tank can collect water on its bottom wall and enter the drainage cavity through the water holes, thereby reducing the residue on the side wall of the water collection tank.

[0009] Preferably, two elastic sealing pieces symmetrically arranged in upper and lower parts are arranged in the suction chamber, the middle part of the elastic sealing piece is fixed on the inner wall of the suction chamber, the two end parts of the elastic sealing piece abut against the inner wall of the suction chamber and seal the end of the water hole close to the suction chamber.

[0010] With the above technical solution, when negative pressure is formed in the suction chamber, the elastic sealing piece bends away from the water hole. At this time, the water in the sump is sucked into the suction chamber through the water hole, thereby reducing the penetration of water into the inner side of the pad body.

[0011] Preferably, the suction and discharge cavity is larger in the middle and smaller at both ends.

[0012] Through the above technical solution, the olive-shaped drainage cavity can collect moisture in its middle part for centralized drainage.

[0013] Preferably, the pad body is provided with an annular cavity arranged in an annular shape with its axis as the center, the annular cavity is located at the lower side of the suction cavity, a through hole is provided in the middle of the elastic sealing piece at the lower side, and the annular cavity is connected with the suction cavity through the through hole.

[0014] Through the above technical solution, the water collected in the middle part of the suction and drainage cavity is discharged into the annular cavity through the through hole in the middle of the lower elastic sealing piece.

[0015] Preferably, the pad body is provided with a plurality of drainage cavities distributed circumferentially with its axis as the center, the drainage cavity is connected with the annular cavity at one end close to the pad body axis, and is connected with a drainage port at one end away from the pad body axis, and an elastic sealing plate is provided in the drainage port for sealing the drainage cavity.

[0016] Through the above technical solution, when negative pressure is formed in the suction and discharge chamber, the elastic sealing plate seals the drainage chamber, thereby preventing outside air from entering the suction and discharge chamber, thereby ensuring that the negative pressure in the suction and discharge chamber can absorb the moisture in the sump; when the pressure in the suction and discharge chamber increases, the elastic sealing plate moves away from the drainage chamber, so that the moisture in the annular chamber can be discharged through the drainage chamber.

[0017] Preferably, the drain outlet is gradually inclined from the edge to the center towards the direction close to the axis of the pad body, the elastic sealing plate is consistent with the shape of the drain outlet, the diameter of the drain outlet is larger than the diameter of the drainage cavity, and the part of the elastic sealing plate located on the upper side of the drainage cavity is fixed in the drain outlet.

[0018] According to the above technical solution, when the cushion body is squeezed and deformed, since the side of the elastic sealing plate close to the drainage cavity is an inclined surface, it is easier for it to bend and disengage from the drainage cavity port.

[0019] Preferably, the interior is fixed with a support tube.

[0020] Through the above technical solution, the support pipe enhances the support strength, ensuring that the drainage cavity can remain unobstructed when the cushion body is squeezed.

[0021] The beneficial effect of the utility model is that the pad body is placed between the connecting piece and the connected piece. During the operation of the mechanical equipment, the vibration between the connecting piece and the connected piece causes the gasket to be in a state of continuous reciprocating deformation, thereby causing the drainage cavity to be in a state of continuous reciprocating deformation, so that the moisture that has penetrated into the pad body, the connecting piece and the connected piece can be sucked into the drainage cavity, and as it deforms, the moisture is squeezed out of the pad body through the drainage cavity and the support pipe, thereby preventing the moisture from entering the connecting piece or the inside of the connected piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 This utility model Figure 1 Schematic diagram of AA in the middle;

[0024] Figure 3 This utility model Figure 2 The enlarged schematic diagram at C in the middle;

[0025] Figure 4 This utility model Figure 1 Schematic diagram of the middle BB;

[0026] Figure 5 This utility model Figure 4 Enlarged schematic diagram at point D in the middle.

[0027] In the figure:

[0028] 10. Cushion body; 11. Water collecting trough; 12. Water through hole; 13. Suction and discharge cavity; 14. Annular cavity; 15. Elastic sealing piece; 16. Support pipe; 17. Elastic sealing plate; 18. Drainage cavity. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model. As used in this article, the terms up and down and left and right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of the shock-absorbing and waterproof gasket are described in detail below:

[0031] An embodiment of the utility model:

[0032] Reference Figure 1-Figure 5 The utility model provides a shock-absorbing and waterproof gasket, including a pad body 10, which is printed by a liquid photosensitive resin through a light-curing 3D printer. The pad body 10 has a plurality of water collecting grooves 11 arranged in an annular manner with the axis of the pad body 10 as the center, and the pad body 10 has a plurality of drainage cavities 13 connected to the water collecting grooves 11. The drainage cavities 13 can absorb the water in the water collecting grooves 11 through deformation and discharge it to the outside of the pad body 10.

[0033] Reference Figure 2 , Figure 3 The cross-section of the water collecting trough 11 is an inverted trapezoid. A water hole 12 is provided between the bottom wall of the water collecting trough 11 and the discharge suction chamber 13. Two elastic sealing pieces 15 are symmetrical in upper and lower directions. The elastic sealing pieces 15 and the cushion body 10 are made of the same material. The elastic sealing pieces 15 are plane in a natural state. The middle part of the elastic sealing piece 15 is fixed on the inner wall of the discharge suction chamber 13. The two end parts of the elastic sealing piece 15 abut against the inner wall of the discharge suction chamber 13. Since the elastic sealing piece 15 is affected by the shape of the inner wall of the discharge suction chamber 13, the elastic sealing piece 15 bends. Under the action of elastic force, the sealing piece 15 blocks the water hole 12 close to one end of the discharge suction chamber 13, and the discharge suction chamber 13 is large in the middle and small at both ends.

[0034] The liquid photosensitive resin is first printed out in the horizontal direction of the utility model by a light-curing 3D printer, and then the planar elastic sealing piece 15 is printed out, and the middle part of the elastic sealing piece 15 is bonded to the lower side wall of the suction cavity 13 by a UV-curing adhesive, and a hole is punched in the elastic sealing piece 15 to communicate with the annular cavity 14.

[0035] Then, the other half of the invention is printed and the two halves of the invention are bonded together by a UV curing adhesive.

[0036] Reference Figure 4 , Figure 5The cushion body 10 is provided with an annular cavity 14 arranged in an annular shape with its axis as the center. The annular cavity 14 is located at the lower side of the suction cavity 13. A through hole is provided in the middle of the elastic sealing piece 15 at the lower side. The annular cavity 14 is connected with the suction cavity 13 through the through hole. The cushion body 10 is provided with a plurality of drainage cavities 18 distributed circumferentially with its axis as the center. The drainage cavity 18 is connected with the annular cavity 14 at one end close to the axis of the cushion body 10, and is connected with a drainage port at one end away from the axis of the cushion body 10. The drainage port is provided with an elastic sealing plate 17 that can block the drainage cavity 18. The drain outlet gradually tilts from the edge to the center toward the direction close to the axis of the cushion body 10. The elastic sealing plate 17 is consistent with the shape of the drain outlet. The elastic sealing plate 17 and the cushion body 10 are made of the same material. The upper edge of the elastic sealing plate 17 is bonded to the bottom wall of the drain outlet by a UV curing adhesive. The diameter of the drain outlet is larger than the diameter of the drain cavity 18. The portion of the elastic sealing plate 17 located on the upper side of the drain cavity 18 is fixed in the drain outlet. A support tube 16 is fixed in the drain cavity 18. The support tube 16 is made of hard plastic and is bonded in the drain cavity 18 by an adhesive.

[0037] During the practical application of the present invention, the gasket is connected between the connecting piece and the connected piece. Due to the operation of the mechanical equipment, the vibration generated by the mechanical equipment causes the gasket to undergo continuous reciprocating deformation. When the pad body 10 is squeezed and deformed, the space of the suction chamber 13 is reduced, and the air in the suction chamber 13 is squeezed out of the pad body 10 through the annular chamber 14 and the support tube 16.

[0038] The moisture that penetrates into the gasket and the connecting parts and the connected parts due to vibration flows into the sump 11. When the extrusion pressure on the cushion body 10 decreases, the deformation of the cushion body 10 decreases, and the space in the suction chamber 13 increases from small to large, so a negative pressure is formed therein. The airflow outside the gasket is sucked into the suction chamber through the water hole 12. At this time, the airflow pushes the elastic sealing piece 15 to bend, and the end of the water hole 12 close to the suction chamber 13 is disengaged from the elastic sealing piece 15. Due to the negative pressure in the suction chamber 13, the elastic sealing plate 17 is located in the drain port under atmospheric pressure and abuts against the end of the drainage chamber 18, so that the moisture in the sump 11 is sucked into the suction chamber 13 through the water hole 12 under the action of the airflow, and is squeezed out of the cushion body 10 through the annular cavity 14 and the support tube 16 through the next extrusion deformation of the suction chamber 13. At this time, the elastic sealing plate 17 is in an open state.

[0039] In summary, through the reciprocating deformation of the gasket caused by the vibration of the mechanical equipment, the moisture that has penetrated between the gasket and the connecting part and the connected part is sucked into the suction cavity 13 and squeezed out of the gasket body 10 through the deformation of the suction cavity 13. At the same time, the gasket made of liquid photosensitive resin has the characteristics of high precision, high elasticity and wear resistance, which improves the waterproofness and shock absorption of the gasket.

[0040] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A shock-absorbing and waterproof gasket, comprising a gasket body (10), characterized in that: The upper and lower end surfaces of the cushion body (10) are provided with a plurality of water collecting grooves (11) arranged in a ring shape with the axis of the cushion body (10) as the center. The cushion body (10) is provided with a plurality of drainage cavities (13) connected with the water collecting grooves (11). The drainage cavities (13) can absorb the water in the water collecting grooves (11) through deformation and discharge it to the outside of the cushion body (10).

2. A shock-absorbing and waterproof gasket according to claim 1, characterized in that: The cross section of the water collecting trough (11) is an inverted trapezoid, and a water through hole (12) is provided between the bottom wall of the water collecting trough (11) and the drainage and suction cavity (13).

3. A shock-absorbing and waterproof gasket according to claim 2, characterized in that: Two elastic blocking pieces (15) are arranged in a vertically symmetrical manner in the drainage chamber (13); the middle portion of the elastic blocking piece (15) is fixedly arranged on the inner wall of the drainage chamber (13); the two end portions of the elastic blocking piece (15) abut against the inner wall of the drainage chamber (13) and block one end of the water hole (12) close to the drainage chamber (13).

4. A shock-absorbing and waterproof gasket according to claim 3, characterized in that: The suction and discharge cavity (13) is large in the middle and small at both ends.

5. A shock-absorbing and waterproof gasket according to claim 4, characterized in that: The cushion body (10) is provided with an annular cavity (14) arranged in an annular shape with its axis as the center. The annular cavity (14) is located at the lower side of the suction cavity (13). A through hole is provided in the middle of the elastic sealing piece (15) at the lower side. The annular cavity (14) is connected to the suction cavity (13) through the through hole.

6. A shock-absorbing and waterproof gasket according to claim 5, characterized in that: The cushion body (10) is provided with a plurality of drainage cavities (18) distributed circumferentially with the cushion body's axis as the center. The drainage cavity (18) is connected to the annular cavity (14) at one end close to the cushion body's (10) axis, and is connected to a drainage port at one end away from the cushion body's (10) axis. An elastic sealing plate (17) is provided in the drainage port for sealing the drainage cavity (18).

7. A shock-absorbing and waterproof gasket according to claim 6, characterized in that: The drain port is gradually inclined from the edge to the center in a direction close to the axis of the cushion body (10); the elastic sealing plate (17) is consistent with the shape of the drain port; the diameter of the drain port is greater than the diameter of the drain cavity (18); and the portion of the elastic sealing plate (17) located on the upper side of the drain cavity (18) is fixed in the drain port.

8. The shock-absorbing and waterproof gasket according to claim 6, characterized in that: A support pipe (16) is fixed in the drainage cavity (18).

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