Sealing plug

Abstract

The invention discloses a sealing plug. The sealing plug comprises a sealing cover, sealant and a support. The sealing cover is connected with the support so that the sealant can be clamped between the sealing cover and the support, and the sealant is at least partially contained in the containing space of the sealing cover. According to the sealing plug, the sealing cover and the support are arranged to be two separated parts, then the two parts are connected together through riveting and other connecting technologies, and sealing glue can be clamped between the sealing cover and the support. And the sealing plug can limit flowing of the sealant during melting, so that the phenomenon that the sealant sags after being molten or is not uniform after being cured is avoided, the appearance of the to-be-sealed part is not affected, and the reliability of sealing the hole of the to-be-sealed part by the sealing plug is guaranteed. Moreover, the sealing plug only needs to be connected with the sealing cover and the support which are both made of metal, connection between soft sealant and a metal piece is avoided, and the assembling difficulty of the sealant is reduced.

Description

Technical Field

[0001] The present application relates to a sealing plug, and in particular to a sealing plug used for sealing a hole on a component to be sealed. Background Art

[0002] When manufacturing the body of a vehicle, some holes are created in the panels of the body structure that need to be sealed to prevent dust or water from entering. Sealing plugs are used to be inserted into these holes and form a seal with the panels to be sealed. In some vehicles that use batteries as a driving energy source, these sealing plugs also need to be flame retardant. Summary of the invention

[0003] The present application provides a sealing plug for sealing a hole of a component to be sealed, comprising a sealing cover, a sealant and a bracket. The sealing cover is configured to cover the hole of the component to be sealed, wherein the sealing cover has at least one accommodating space. The sealant is arranged around the hole of the component to be sealed, wherein the sealant is at least partially accommodated in the accommodating space. The bracket is connected to the sealing cover. The sealing cover and the bracket are configured so that when the sealant is melted, the sealing cover and the bracket at least partially restrict the flow of the sealant.

[0004] According to the above, the at least one receiving space includes a receiving groove, the receiving groove extends from the bottom of the sealing cover toward the top, the receiving groove forms a bottom opening at the bottom of the sealing cover, and the sealant is at least partially received in the receiving groove through the bottom opening. The bracket is connected below the sealing cover and at least partially blocks the bottom opening to sandwich the sealant between the sealing cover and the bracket.

[0005] According to the above, the sealing plug has an axis, the receiving groove extends from the bottom to the top of the sealing cover along the axis, and the receiving groove and the sealant are ring-shaped extending around the axis.

[0006] According to the above content, the sealant includes a sealing top and a sealing bottom. The sealing top is accommodated in the accommodating groove. The sealing bottom is connected to the sealing top, wherein the sealing bottom is arranged around the hole of the component to be sealed.

[0007] According to the above content, the sealing cover includes a sealing lip and an arched portion. The arched portion arches upward relative to the sealing lip, the sealing lip is arranged around the arched portion and arranged at the periphery of the arched portion, and the receiving groove is arranged in the arched portion. The sealing bottom is connected below the sealing lip and is used to abut the sealed component.

[0008] According to the above content, the sealing cover further includes a cover body, the arched portion surrounds the cover body and is arranged between the cover body and the sealing lip, and the bracket is connected to the cover body.

[0009] According to the above content, the sealant includes a sealant body, wherein the sealing top is formed by extending inwardly from the top of the sealant body, and the sealing bottom is formed by extending outwardly from the bottom of the sealant body.

[0010] According to the above, the bracket is configured such that when the sealing plug seals the hole of the member to be sealed, the bracket is snap-connected with the edge of the hole of the member to be sealed to retain the sealing plug in the member to be sealed.

[0011] According to the above, the bracket includes at least two clips, each of which extends downward from the edge of the bracket, and each clip includes an elastic leg, each of which is configured to be elastically deflected to abut the edge of the hole of the hole, thereby retaining the sealing plug in the sealed member.

[0012] According to the above, each of the clips has a window. The elastic leg includes an upper leg, a bent portion and a lower leg, the bent portion is connected between the upper leg and the lower leg, the upper leg extends outwardly from its top end to the bent portion, and the lower leg extends inwardly from the bent portion to its bottom end. The bottom end of the lower leg is connected to the edge of the window, and the top end of the upper leg forms a free end.

[0013] According to the above, the elastic leg further comprises a top wall, the top wall is connected to the top of the upper leg, and the top wall is arranged to block the inner side of the sealing bottom of the sealant.

[0014] According to the above content, the sealing cover and the bracket are made of metal material, and the sealant is made of hot melt adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A is a three-dimensional structural diagram of a sealing plug according to an embodiment of the present application at a viewing angle;

[0016] Figure 1B for Figure 1A The three-dimensional structure diagram of the sealing plug shown in another perspective;

[0017] Figure 1C for Figure 1A An exploded view of the sealing plug is shown;

[0018] Figure 1D for Figure 1A An axial cross-sectional view of the sealing plug shown;

[0019] Figure 2A for Figure 1A A top view of the sealing cover in FIG.

[0020] Figure 2B for Figure 2A An axial cross-sectional view of the sealing cover along line AA;

[0021] Figure 3A for Figure 1A The three-dimensional structure diagram of the sealant in;

[0022] Figure 3B for Figure 3A An axial cross-sectional view of the sealant shown;

[0023] Figure 4A for Figure 1A A three-dimensional structural diagram of the bracket in FIG.

[0024] Figure 4B for Figure 4A a side view of the bracket shown;

[0025] Figure 5A-5D Show Figure 1A The process of inserting the sealing plug into the hole on the sealed component shown;

[0026] Fig. 6A is a three-dimensional structural diagram of a sealing plug according to another embodiment of the present application at a viewing angle;

[0027] Figure 6B for Fig. 6A The three-dimensional structure diagram of the sealing plug shown in another perspective;

[0028] Figure 7 for Fig. 6A A three-dimensional structural diagram of the bracket. DETAILED DESCRIPTION

[0029] Various specific embodiments of the present application will be described below with reference to the accompanying drawings that form a part of this specification. It should be understood that although terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., are used in this application to describe various example structural parts and elements of the present application, these terms are used here only for the purpose of convenience of description and are determined based on the example orientations shown in the accompanying drawings. Since the embodiments disclosed in the present application can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations.

[0030] Figure 1A-Figure 1D : is a schematic structural diagram of the sealing plug 100 according to the present application, and is used to illustrate the general structure of the sealing plug 100. Figure 1A A perspective view of the sealing plug 100 viewed from above is shown. Figure 1B A perspective view of the sealing plug 100 viewed from bottom to top is shown. Figure 1C An exploded view of the sealing plug 100 is shown, Figure 1D FIG. 2 shows an axial cross-sectional view of the sealing plug 100. Figure 1A-Figure 1D As shown, the sealing plug 100 is generally axially symmetrical and has an axis x. For ease of description, the direction along the axis x is defined as the axial direction of the sealing plug 100, the direction around the axis x is defined as the circumferential direction of the sealing plug 100, and the direction perpendicular to the axis x is defined as the radial direction of the sealing plug 100.

[0031] like Figure 1A-Figure 1D As shown, the sealing plug 100 includes a sealing cover 101, a sealant 103 and a bracket 102. The sealing cover 101 has at least one accommodating space 118, and the sealant 103 is at least partially accommodated in the accommodating space 118. The sealing cover 101 is connected to the bracket 102 to assemble and form the sealing plug 100. In this embodiment, the sealant 103 is sandwiched between the sealing cover 101 and the bracket 102, and the sealing cover 101 and the bracket 102 are made of metal materials to have strong heat resistance. The sealant 103 is made of a hot melt adhesive with a melting point lower than that of the metal material, so that the sealant 103 can melt at a higher temperature and solidify at a lower temperature. The sealing cover 101 is roughly in the shape of a circular plate, and its size is set to be able to cover the hole 541 on the sealed member 540. Thus, when the sealing plug 100 is used to seal the hole 541 on the sealed member 540, the sealant 103 is first heated to melt, then cooled to solidify and adhere to the sealed member 540, so as to seal the sealing plug 100 to the sealed member 540 (see Figure 5A-Figure 5C In the present application, the sealing cover 101 and the bracket 102 are configured so that when the sealant 103 is melted, the sealing cover 101 and the bracket 102 at least partially restrict the flow of the sealant 103.

[0032] Specifically, at least one accommodating space 118 includes an accommodating groove 115, which extends from the bottom of the sealing cover 101 toward the top, and forms a bottom opening 158 at the bottom of the sealing cover 101. The sealant 103 is at least partially accommodated in the accommodating groove 115 through the bottom opening 158. In this embodiment, the sealing groove 115 extends axially from the bottom of the sealing cover 101 toward the top, and is configured as an annular groove around the axis x. The sealing cover 101 includes a cover body 111, an arched portion 112, and a sealing lip 113. The arched portion 112 is arranged around the cover body 111 between the cover body 111 and the sealing lip 113. In this embodiment, the arched portion 112 is arched upward relative to the cover body 111 and the sealing lip 113, so that the sealing groove 115 is arranged at the bottom of the arched portion 112. In other embodiments, the accommodating groove 115 can also be configured as a plurality of discontinuous accommodating grooves, which are arranged around the cover body 111 at the bottom of the arched portion 112. The receiving groove 115 is used to receive at least a portion of the sealant 103 so as to at least partially restrict the flow of the sealant 103 when the sealant 103 is melted.

[0033] The sealing lip 113 is arranged around the arched portion 112 and at the periphery of the arched portion 112. The sealing lip 113 is formed to extend radially outward from the bottom of the outer peripheral wall of the arched portion 112. The shape and size of the sealing lip 113 are set to surround the hole 541 of the part to be sealed 540. A part of the sealant 103 is arranged below the sealing lip 113 so that the sealing lip 113 can be sealed and connected to the part to be sealed 540 through the sealant 103. Through the sealing connection between the sealing lip 113 and the part to be sealed 540, the sealing plug 100 and the part to be sealed 540 can be connected together.

[0034] The cover body 111 includes a positioning column 105, which is located in the middle of the cover body 111 and extends downward from the bottom of the cover body 111. The positioning column 105 is used to connect with the bracket 102. In this embodiment, a positioning hole 122 is provided at a corresponding position on the bracket 102, and the positioning column 105 can be inserted into the positioning hole 122, and then the positioning column 105 is riveted to the bracket 102 by a riveting process. Figures 1A-1D Only the state of the positioning post 105 being inserted into the positioning hole 122 is shown, and the state of the positioning post 105 being riveted to the bracket 102 is not shown. In some embodiments, the positioning post 105 can be connected to the bracket 102 by other connection methods. In some embodiments, the cover body 111 may also not include the positioning post 105, but the cover body 111 is connected to the bracket 102 by other connection methods.

[0035] The bracket 102 is connected below the sealing cover 101 and at least partially blocks the bottom opening 158 of the receiving groove 115 to sandwich the sealant 103 between the sealing cover 101 and the bracket 102. The bracket 102 includes at least two elastic legs 106, which are elastic and can move toward the axis x or away from the axis x. When the sealing plug 100 is sealed and connected to the sealed member 540, the elastic legs 106 of the bracket 102 can abut against the hole edge 542 of the hole 541 of the sealed member 540, thereby preventing the sealing plug 100 from falling off from the sealed member 540 unexpectedly. Specifically, the bracket 102 includes a connecting beam 121, and the positioning hole 122 is arranged at the center of the connecting beam 121. In this embodiment, the connecting beam 121 is in the shape of a crossbar extending in the radial direction, and the bracket 102 includes two clips 108, each of which is formed by extending downward from opposite ends of the connecting beam 121. Each clip 108 includes an elastic leg 106, one end of which is connected to the clip 108, and the other end is suspended, so that the elastic leg 106 can be elastic to move toward or away from the axis x. In this embodiment, each clip 108 is provided with a window 128, which extends downward from the connecting beam 121 to the lower part of the clip 108, but does not penetrate the clip 108. The bottom end of the elastic leg 106 is connected to the bottom edge of the window 128, and the top of the elastic leg 106 is suspended to form a free end. The elastic leg 106 includes a lower leg 123, an upper leg 124 and a top 125 from bottom to top. In the direction from bottom to top, the lower leg 123 is formed by tilting and extending in a direction away from the axis x, the upper leg 124 is formed by tilting and extending in a direction close to the axis x, and the top 125 is formed by vertically extending in the direction of the axis x. The upper leg 124 and the lower leg 123 form an outwardly protruding inflection point 126 at the connection. That is, the distance between the elastic leg 106 and the axis x is the largest at the inflection point 126 .

[0036] Therefore, in the process of inserting the sealing plug 100 from top to bottom into the hole 541, the elastic leg 106 can first be inserted downward into the hole 541, and then the elastic leg 106 is squeezed by the hole edge 542 of the hole 541 and elastically deforms toward the axis x, and finally after crossing the inflection point 126, the elastic leg 106 recovers to abut the hole edge 542.

[0037] Those skilled in the art can understand that the elastic leg 106 on the bracket 102 of the present application is not limited to the structure of the present embodiment, and the elastic leg 106 can also be set to other shapes and structures, as long as the elastic leg 106 can be elastically deformed when subjected to the inward radial extrusion force. For example, the top of the elastic leg 106 can also be connected to the connecting beam 121, and the bottom end of the elastic leg 106 forms a free end.

[0038] The sealant 103 is in the shape of a ring, and includes a sealing top 133 and a sealing bottom 132. In the present embodiment, the sealing top 133 is accommodated in the accommodating groove 115. The sealing bottom 132 is connected below the sealing top 133, and the sealing bottom 132 is arranged below the sealing lip 113 to be arranged around the hole 541 of the member to be sealed 540. As an example, the sealant 103 includes a sealant body 131, the sealing top 133 is formed by the top of the sealant body 131 extending radially inwardly, and the sealing bottom 132 is formed by the bottom of the sealant body 131 extending radially outwardly. The lower surface of the sealing top 133 can abut the top of the bracket 102, such as the top of the connecting beam 121 of the bracket, so that when the bracket 102 is connected to the sealing cover 101, the sealant 103 can be sandwiched between the sealing cover 101 and the bracket 102. When the sealing top 133 is received in the receiving groove 115 , the sealing bottom 132 is located below the sealing lip 113 , so that when the sealing plug 100 is installed in the hole 541 , the sealing bottom 132 is used to be sandwiched between the sealing cover 101 and the component 540 to be sealed.

[0039] Figure 2A and Figure 2B The specific structure of the sealing cover 101 is shown, wherein Figure 2A is a top view of the sealing cover 101, Figure 2B FIG. 1 is an axial cross-sectional view of the sealing cover 101 along line AA. Figure 2A and Figure 2B As shown, the sealing cover 101 is made of metal material. For the convenience of processing, the arched portion 112 and the receiving groove 115 are formed by stamping from the bottom to the top at the outer ring position of the cover body 111, and the positioning column 105 is formed by stamping from the top to the bottom at the center position of the cover body 111. The lower surface of the cover body 111 is used to abut against the upper surface of the bracket 102, and the lower surface of the sealing lip 113 is used to abut against the sealing bottom 132 of the sealant 103.

[0040] Figure 3A and Figure 3B The specific structure of the sealant 103 is shown, wherein Figure 3A This is a three-dimensional structural diagram of the sealant 103 from a bottom-up perspective. Figure 3B 103 is an axial cross-sectional view of the sealant 103. Figure 3A and Figure 3B As shown, the sealant 103 is a hot melt adhesive formed by an injection molding process.

[0041] The sealing top 133 of the sealant 103 is formed to protrude radially inward from the top of the sealant body 131, so that an annular gap 336 is formed between the sealing top 133 and the sealing bottom 132. The lower surface 334 of the sealing top 133 can at least partially contact the connecting beam 121 of the bracket 102, and the annular gap 336 can accommodate the top 125 of the elastic leg 106.

[0042] The sealing bottom 132 of the sealant 103 is formed to protrude radially outward from the bottom of the sealant body 131, so that the sealant 103 forms a shape matching the sealing cover 101. The upper surface of the sealing bottom 132 is in close contact with the lower surface of the sealing lip 113. And the lower surface of the sealing bottom 132 is used to be in close contact with the upper surface of the component 540 to be sealed.

[0043] When the sealing plug 100 is heated in a vertical state, the sealing top 133 of the sealant 103 is contained in the containing groove 115, so the containing groove 115 can limit the radial flow of the top 335 of the sealant 103. Although the sealing bottom 132 is not contained in the containing groove 115, they are sandwiched between the sealing lip 113 and the sealed member 540 in the axial direction, and they are restricted by the top 125 of the elastic leg 106 in the radial direction, so the flow range is limited. Therefore, the sealing plug 100 of the present application can reduce the risk of sagging of the sealant 103, thereby ensuring that the sealant 103 can be evenly arranged in the circumferential direction, thereby ensuring the sealing effect of the sealing plug 100.

[0044] Figure 4A and Figure 4B The specific structure of the bracket 102 is shown. Figure 4A A three-dimensional structural diagram of the bracket is shown. Figure 4B FIG. 2 shows a side view of the bracket. Figure 4A and Figure 4B As shown, the elastic leg 106 and the window 128 are cut from the clip 108 and bent by a bending process. The bottom of the clip 108 is bent toward the direction of the axis x to facilitate the clip 108 to be inserted into the hole 541 of the sealed member 540.

[0045] The distance R3 between the elastic leg 106 at the bottom of the lower leg portion 123 and the axis x is set to be smaller than the radius R0 of the hole 541 on the member 540 to be sealed. The distance R2 between the elastic leg 106 at the inflection point 126 and the axis x is set to be larger than the radius R0 of the hole 541 on the member 540 to be sealed. And the distance R1 between the elastic leg 106 at the top 125 and the axis x is set to be substantially equal to or slightly larger than the radius R0 of the hole 541 on the member 540 to be sealed. By providing the elastic leg 106 that can be elastically deformed in the direction of the axis x, or restored in the direction away from the axis x, the sealing plug 100 can be inserted into and retained in the hole 541 of the member 540 to be sealed.

[0046] In this embodiment, the length and the inclination angle of the lower leg 123 in the axial direction can be set according to the radius R0 of the hole 541 and the required insertion force. And according to the thickness of the to-be-sealed component 540 and the thickness of the sealant 103, the length of the upper leg 124 and the top 125 in the axial direction and the inclination angle of the upper leg 124 can be set, so that when the lower surface of the sealant 103 abuts against the upper surface of the to-be-sealed component 540, the hole edge 542 of the hole 541 abuts against the connection between the top 125 and the upper leg 124.

[0047] Figure 5A-5D The figure shows the process of inserting the sealing plug 100 into the hole 541 of the vertical member 540 to be sealed, and the relative positions of the sealing plug 100 and the member 540 to be sealed.

[0048] like Figure 5A As shown, the sealing plug 100 is aligned with the hole 541 of the to-be-sealed member 540, but has not yet been inserted into the hole 541. Since the distance R3 between the bottom of the lower leg portion 123 of the elastic leg 106 and the axis x is smaller than the radius R0 of the hole 541, and the bottom of the clip 108 is further bent toward the axis x, the clip 108 and the bottom of the elastic leg 106 can be inserted into the hole 541 to the left.

[0049] like Figure 5B As shown, the sealing plug 100 has just been inserted into the hole 541, but the elastic leg 106 has not yet been elastically deformed. Figure 4B The lower leg 123 is able to be inserted into the hole 541 until the outer surface of the lower leg 123 abuts against the hole edge 542 of the hole 541. At this time, the left surface of the sealant 103 has not yet abutted against the right surface of the component 540 to be sealed. The operator applies a leftward force F from the top of the sealing plug 100, forcing the sealing plug 100 to continue to move to the left. The lower leg 123 is squeezed by the hole edge 542 and elastically deforms inward, forcing both elastic legs 106 to elastically deform inward. The distance between the lower legs 123 of the two elastic legs 106 is reduced, so that the elastic leg 106 can continue to be inserted into the hole 541 to the left until it reaches the position as shown in the figure. Figure 5C Position shown.

[0050] like Figure 5C As shown, the inflection point 126 of the elastic leg 106 abuts against the hole edge 542 of the hole 541, and the elastic leg 106 is elastically deformed to reach the position closest to the axis x. At this time, the left surface of the sealant 103 has not yet abutted against the right surface of the sealed component 540. The operator can continue to apply a leftward force F from the top of the sealing plug 100 to force the sealing plug 100 to continue to move to the left. After the inflection point 126 passes the hole edge 542 of the hole 541, the elastic leg 106 is no longer squeezed by the hole edge 542, and moves outward to recover until it reaches the position shown in FIG. Figure 5D Position shown.

[0051] like Figure 5D As shown, the outer surface of the top 125 of the elastic leg 106 abuts against the hole edge 542 of the hole 541, and the elastic leg 106 does not undergo elastic deformation, or undergoes a small amount of elastic deformation, so that the top 125 tightly abuts against the hole edge 542. At this time, the left surface of the sealant 103 abuts against the right surface of the front seal 540, and the sealing plug 100 cannot continue to move to the left. The right surface of the sealant 103 abuts against the sealing lip 113 of the sealing plug 100. The bottom of the hole edge 542 abuts against the connection between the top 125 and the upper leg 124 to prevent the sealing plug 100 from falling off to the right unexpectedly.

[0052] After the sealing plug 100 is installed, the sealed component 540 can be heated as a whole for a period of time to melt the sealant 103. At this time, since most of the top of the sealant 103 is contained in the containing groove 115, the sealant 103 will hardly sag regardless of whether the sealed component 540 is placed horizontally or vertically. The sealant 103 is then cooled to solidify, so that the sealant 103 can sealably connect the sealing plug 100 and the sealed component 540.

[0053] Before the sealant 103 melts, the operator can also pull out the sealing plug 100 from the hole 541 of the sealed component 540. Figure 5D-Figure 5A The hole edge 542 of the hole 541 abuts against the upper leg portion 123 of the elastic leg 106 and moves relatively along the upper leg portion 123 to force the elastic leg 106 to deform elastically inward. The sealing plug 100 can be pulled out until the inflection point 126 moves to the right and passes over the hole edge 542 of the hole 541.

[0054] Fig. 6A and Figure 6B FIG. 6 shows a specific structure of a sealing plug 600 according to another embodiment of the present application. Fig. 6A The three-dimensional structure diagram of the sealing plug 600 viewed from bottom to top is shown. Figure 6B An axial cross-sectional view of the sealing plug 600 is shown. The structure of the sealing plug 600 is substantially the same as that of the sealing plug 100. The sealing plug 600 also includes a sealing cover 601, a sealant 603 and a bracket 602. The structures of the sealing cover 601 and the sealant 603 are the same as those of the sealing cover 101 and the sealant 103. However, the structure of the bracket 602 is different from that of the bracket 102. In this embodiment, the bracket 602 includes three clips 608, each of which includes an elastic leg 606, that is, the bracket 602 includes three elastic legs 606. The three clips 608 are arranged at the end of the connecting beam 621 around the axis x. The specific structure of the bracket 602 will be combined with Figure 7Describe in detail.

[0055] Fig. 6A and Figure 6B The state of riveting the positioning post 605 to the bracket 602 is shown. When the positioning post 605 is inserted into the positioning hole 722 of the bracket 602 (see Figure 7 After the rivet is completed, the outer diameter of the positioning column 605 is larger than the aperture of the positioning hole 722, so the sealing cover 601 and the bracket 602 can be connected together.

[0056] Figure 7 A top view of the bracket 602 is shown to illustrate the specific structure of the bracket 602. Figure 7 As shown, the three clips 608 of the bracket 602 are arranged in a triangle around the axis x. The structure of the elastic leg 606 of each clip 608 is the same as that of the elastic leg 601. The bottom end of the elastic leg 606 is connected to the bottom of the clip 608, and the top end forms a free end, so that the elastic leg 606 can be elastically deformed toward the axis x, or away from the axis x to recover. Compared with the bracket 102, the three clips 608 arranged in a triangle are more stable than a pair of clips 108. When the operator presses the sealing plug downward, the force on each clip 608 of the bracket 602 is more uniform.

[0057] In this embodiment, the connecting beam 621 roughly maintains the shape of a "I"-shaped crossbeam. The width of the connecting beam 621 on the left side of the positioning hole 722 is greater than the width of the connecting beam 621 on the right side of the positioning hole 722, so that two clips 608 can be set at the circumferential edge of the connecting beam 621 on the left side, and one clip 608 is set at the circumferential edge of the connecting beam 621 on the right side. And the three clips 608 are arranged in a roughly isosceles triangle shape. Compared with the connecting beam 621 being set as a connecting beam with three sections of crossbeams in a "Y" shape, the setting method of setting two clips 608 on one side of the connecting beam 621 and another clip 608 on the other side of the connecting beam 621 in this embodiment can reduce the size of the connecting beam 621 while ensuring that the three clips 608 are set around the axis x, thereby saving material requirements.

[0058] The existing sealing plug generally coats the sealant on the outside of the metal sealing cover, and uses the installation groove and other structures to clamp and connect the two together. The elastic leg is deformably connected to the bottom of the sealing cover to connect the sealing plug with the sealed part. In some vertical sealed parts with sealing requirements, after the sealing plug is inserted into the hole of the sealed part, the sealant of the sealing plug may sag during the heating process, which not only affects the appearance, but also may cause the sealant to be unevenly distributed, affecting the sealing effect of the sealing plug.

[0059] The sealing plug of the present application sets the sealing cover and the bracket as two separate parts, and then connects them together through riveting or other connection processes, so that the sealant can be sandwiched between the sealing cover and the bracket. In addition, the sealing plug sets a receiving space on the sealing cover and receives the sealant in the receiving space, so that the flow of the sealant when it is melted is restricted by the sealing cover and the bracket, thereby avoiding the phenomenon of the sealant sagging after melting or uneven curing, which not only does not affect the appearance of the sealed part, but also ensures the reliability of the sealing plug sealing the hole of the sealed part.

[0060] Furthermore, the sealing plug of the present application only needs to be connected to the sealing cover and the bracket, both of which are made of metal, thereby avoiding the connection between the softer sealant and the metal parts and reducing the difficulty of assembling the sealant.

[0061] In addition, since the bracket can be manufactured separately, the elastic legs can be independently configured to have a structure that can be easily deformed and does not have excessive insertion force, without being restricted by the structure of the sealing cover.

[0062] Although the present disclosure has been described in conjunction with the examples of the embodiments summarized above, various alternatives, modifications, changes, improvements and / or substantially equivalent solutions, whether known or currently or foreseeable in the near future, may be apparent to those of ordinary skill in the art. In addition, the technical effects and / or technical problems described in this specification are exemplary rather than restrictive; so the disclosure in this specification may be used to solve other technical problems and have other technical effects and / or may solve other technical problems. Therefore, the examples of the embodiments of the present disclosure as stated above are intended to be illustrative rather than restrictive. Various changes may be made without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is intended to include all known or earlier developed alternatives, modifications, changes, improvements and / or substantially equivalent solutions.

Claims

1. A sealing plug for sealing a hole (541) of a sealed component (540), characterized in that include: A sealing cover (101), the sealing cover (101) being arranged to cover the hole (541) of the to-be-sealed component (540), wherein the sealing cover (101) has at least one accommodating space (118); A sealant (103), the sealant (103) being arranged around the hole (541) of the component (540) to be sealed, wherein the sealant (103) is at least partially accommodated in the accommodation space (118); and A bracket (102), the bracket (102) being connected to the sealing cover (101); The sealing cover (101) and the support (102) are arranged such that when the sealant (103) is melted, the sealing cover (101) and the support (102) at least partially restrict the flow of the sealant (103).

2. The sealing plug according to claim 1, characterized in that: The at least one accommodating space (118) comprises an accommodating groove (115), the accommodating groove (115) extending from the bottom toward the top of the sealing cover (101), the accommodating groove (115) forming a bottom opening (158) at the bottom of the sealing cover (101), and the sealant (103) is at least partially accommodated in the accommodating groove (115) through the bottom opening (158); The support (102) is connected below the sealing cover (101) and at least partially covers the bottom opening (158) so as to sandwich the sealant (103) between the sealing cover (101) and the support (102).

3. The sealing plug according to claim 2, characterized in that: The sealing plug (100) has an axis (x), the receiving groove (115) extends from the bottom to the top of the sealing cover (101) along the direction of the axis (x), and the receiving groove (115) and the sealant (103) are ring-shaped and extend around the axis (x).

4. The sealing plug according to claim 3, characterized in that: The sealant (103) comprises: a sealing top portion (133), wherein the sealing top portion (133) is received in the receiving groove (115); and A sealing bottom (132), wherein the sealing bottom (132) is connected to the sealing top (133), wherein the sealing bottom (132) is arranged around the hole (541) of the component to be sealed (540).

5. The sealing plug according to claim 4, characterized in that: The sealing cover (101) comprises: a sealing lip (113); and an arched portion (112), the arched portion (112) arching upward relative to the sealing lip edge (113), the sealing lip edge (113) surrounding the arched portion (112) and arranged at the periphery of the arched portion (112), and the receiving groove (115) being arranged in the arched portion (112); The sealing bottom (132) is connected below the sealing lip (113) and is used to abut against the to-be-sealed component (540).

6. The sealing plug according to claim 5, characterized in that: The sealing cover (101) further comprises a cover body (111), the arched portion (112) is arranged around the cover body (111) and between the cover body (111) and the sealing lip edge (113), and the bracket (102) is connected to the cover body (111).

7. The sealing plug according to claim 4, characterized in that: The sealant (103) comprises a sealant body (131), wherein the sealing top (133) is formed by extending inwardly from the top of the sealant body (131), and the sealing bottom (132) is formed by extending outwardly from the bottom of the sealant body (131).

8. The sealing plug according to claim 2, characterized in that: The bracket (102) is configured such that when the sealing plug (100) seals the hole (541) of the part to be sealed (540), the bracket (102) is snap-connected with the hole edge (542) of the hole (541) of the part to be sealed (540) so as to retain the sealing plug (100) in the part to be sealed (540).

9. The sealing plug according to claim 8, characterized in that: The bracket (102) includes at least two clips (108), each of which extends downward from the edge of the bracket (102), and each clip (108) includes an elastic leg (106), and each of the elastic legs (106) is configured to be elastically deflected to abut against the hole edge (542) of the hole (541), thereby retaining the sealing plug (100) in the sealed member (540).

10. The sealing plug according to claim 9, characterized in that: Each of the clips (108) has a window (128); The elastic leg (106) comprises an upper leg portion (124), a bent portion (126) and a lower leg portion (123), wherein the bent portion (126) is connected between the upper leg portion (124) and the lower leg portion (123), the upper leg portion (124) extends obliquely outward from its top end to the bent portion (126), and the lower leg portion (123) extends obliquely inward from the bent portion (126) to its bottom end; The bottom end of the lower leg (123) is connected to the edge of the window (128), and the top end of the upper leg (124) forms a free end.

11. The sealing plug according to claim 10, characterized in that: The elastic leg (106) further comprises a top wall (125), wherein the top wall (125) is connected to the top of the upper leg (124), and the top wall (125) is configured to block the inner side of the sealing bottom (132) of the sealant (103).

12. The sealing plug according to claim 1, characterized in that: The sealing cover (101) and the bracket (102) are made of metal material, and the sealant (103) is made of hot melt adhesive.

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