Fastener sealing structure

Abstract

The utility model discloses a fastener sealing structure. Comprising a hexagon bolt used for fastening and connecting a first mounting piece and a second mounting piece, a threaded through hole formed in the outer wall of the top of the first mounting piece, an inner threaded pipe fixed to the outer wall of the top of the second mounting piece, an upper sealing ring and a lower sealing ring, wherein the upper sealing ring and the lower sealing ring are bonded to the outer walls of the upper side and the lower side of the first mounting piece respectively. The hexagon bolt can be screwed into the threaded through hole and the inner threaded pipe, the first installation piece and the second installation piece are fixed together, a nut of the hexagon bolt can be pressed on the upper sealing ring to seal the top of the threaded through hole, the lower sealing ring can seal the bottom of the threaded through hole, and after the hexagon bolt is installed, the first installation piece and the second installation piece can be fixed. The top pressing assembly expands outwards under the influence of gravity, at the moment, the cross-shaped bolt can be rotated to drive the top pressing assembly to ascend, the structure, expanding outwards, of the top pressing assembly is pressed on the lower sealing ring, the lower sealing ring is pressed and fixed, the lower sealing ring cannot fall off, and the sealing performance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fastener sealing, in particular to a fastener sealing structure. Background Art

[0002] Fasteners are also called standard parts in the market. They are mechanical components that can mechanically fix or connect two or more components together. Screws are the most common fasteners. They achieve fastening connections through threaded connections and screw holes. However, their disadvantage is that the sealing effect of threaded connections is not very good, and they usually need to be used with sealing rings.

[0003] The sealing ring is usually placed on the threaded hole, screwed into the threaded hole by a bolt, and the sealing ring is compressed by a nut to seal from the outside of the installed threaded hole. In order to further improve the sealing effect, a sealing ring is sometimes glued to the inner side of the threaded hole to achieve a double-layer sealing effect. However, the sealing ring on the inner side is not fixed with pressure and is only installed by gluing, so it is very easy to fall off after a long time. Utility Model Content

[0004] The utility model aims to provide a fastener sealing structure to solve the problem that the sealing ring bonded to the inner side of the threaded hole mentioned in the background art is very easy to fall off after a long time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fastener sealing structure, comprising: a hexagonal bolt for fastening a first mounting member and a second mounting member, a threaded through hole opened on the top outer wall of the first mounting member, an internally threaded tube fixed to the top outer wall of the second mounting member, and an upper sealing ring and a lower sealing ring respectively bonded to the upper and lower outer walls of the first mounting member, and also comprising: a through hole opened on the top outer wall of the hexagonal bolt, a cross bolt being rotatably installed on the inner wall of the through hole, and a top pressing assembly being threaded on the outer wall of the cross bolt, a groove being opened on the screw rod of the hexagonal bolt, and vertical grooves equidistantly distributed on the inner wall of the groove.

[0006] The pressing assembly comprises a nut, a limiting plate fixed to the outer wall of the nut and distributed at equal distances, and a pressing plate hinged to the outer wall of the nut and distributed at equal distances.

[0007] A bearing is fixed on the inner wall of the through hole, and a cross bolt is fixed on the inner ring of the bearing.

[0008] Positioning rods are fixed at the four corners of the bottom outer wall of the first mounting member, and positioning grooves are opened at the four corners of the top outer wall of the second mounting member.

[0009] The end of the limiting plate away from the nut extends into the vertical slot, and the width of the limiting plate is matched with the width of the inner wall of the vertical slot.

[0010] The inner diameter of the upper sealing ring is greater than the inner diameter of the lower sealing ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model discloses a fastener sealing structure, in which a hexagonal bolt can be screwed into a threaded through hole and an internally threaded tube to fix a first mounting member and a second mounting member together, a nut of the hexagonal bolt can be pressed on an upper sealing ring to seal the top of the threaded through hole, and a lower sealing ring can be pressed on the bottom of the threaded through hole. After the hexagonal bolt is screwed and installed, a top pressure component is expanded outwards under the influence of gravity, at which time a cross bolt can be rotated to drive the top pressure component to rise, and the outwardly expanded structure of the top pressure component is used to press on the lower sealing ring, so as to press and fix the lower sealing ring, so that the lower sealing ring will not fall off, thereby ensuring the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall installation diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the first mounting member and the second mounting member of the utility model;

[0015] Figure 3 It is a three-dimensional cross-sectional view of a hexagonal bolt of the utility model;

[0016] Figure 4 This is a three-dimensional external view of the hexagonal bolt of the utility model;

[0017] Figure 5 It is a schematic diagram of the folding top pressure assembly of the utility model;

[0018] Figure 6 It is a schematic diagram of the expansion of the top pressing component of the utility model.

[0019] In the figure: 1. first mounting part; 2. second mounting part; 3. threaded through hole; 4. internal threaded tube; 5. upper sealing ring; 6. lower sealing ring; 7. hexagonal bolt; 8. through hole; 9. cross bolt; 10. top pressure assembly; 1001. nut; 1002. limit plate; 1003. top pressure plate; 11. groove; 12. vertical groove; 13. bearing; 14. positioning rod; 15. positioning groove. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-6The utility model provides a fastener sealing structure, comprising: a hexagonal bolt 7 for fastening a first mounting member 1 and a second mounting member 2, a threaded through hole 3 provided on the top outer wall of the first mounting member 1, an internally threaded tube 4 fixed to the top outer wall of the second mounting member 2, and an upper sealing ring 5 and a lower sealing ring 6 respectively bonded to the upper and lower outer walls of the first mounting member 1, and further comprising: a through hole 8 provided on the top outer wall of the hexagonal bolt 7, a cross bolt 9 being rotatably installed on the inner wall of the through hole 8, and a top pressing assembly 10 being screwed on the outer wall of the cross bolt 9, a groove 11 being provided on the screw rod of the hexagonal bolt 7, and vertical grooves 12 being equidistantly distributed on the inner wall of the groove 11.

[0022] It should be noted here that the hexagonal bolt 7 can be screwed into the threaded through hole 3 and the internal threaded tube 4 to fix the first mounting member 1 and the second mounting member 2 together, and the nut of the hexagonal bolt 7 can be pressed on the upper sealing ring 5 to seal the top of the threaded through hole 3, and the lower sealing ring 6 can seal the bottom of the threaded through hole 3. After the hexagonal bolt 7 is screwed and installed, the top pressure component 10 is expanded outward due to gravity. At this time, the cross bolt 9 can be rotated to drive the top pressure component 10 to rise, and the outward expanded structure of the top pressure component 10 is used to press on the lower sealing ring 6, which plays a role of pressurizing and fixing the lower sealing ring 6, so that the lower sealing ring 6 will not fall off, thereby ensuring the sealing performance.

[0023] In a preferred embodiment, the pressing assembly 10 includes a nut 1001, a limiting plate 1002 fixed to the outer wall of the nut 1001 and distributed at equal distances, and a pressing plate 1003 hinged to the outer wall of the nut 1001 and distributed at equal distances.

[0024] It should be noted here that: the top pressure plate 1003 can be affected by gravity and fall in a horizontal state. When the hexagonal bolt 7 is screwed in, the hexagonal bolt 7 can be held by hand to prevent the hexagonal bolt 7 from tilting and at the same time block the top pressure plate 1003 from falling. After the hexagonal bolt 7 is screwed in and installed, the vertical top pressure plate 1003 is affected by gravity and falls in a horizontal state. The cross bolt 9 can be rotated to make the nut 1001 rise, thereby driving the top pressure plate 1003 to rise, so that the top pressure plate 1003 is pressed on the lower sealing ring 6 from below.

[0025] In a preferred embodiment, a bearing 13 is fixed to the inner wall of the through hole 8 , and the cross bolt 9 is fixed to the inner ring of the bearing 13 .

[0026] It should be noted here that: the rotation installation of the cross bolt 9 is completed.

[0027] In a preferred embodiment, positioning rods 14 are fixed to the four corners of the bottom outer wall of the first mounting member 1 , and positioning grooves 15 are opened to the four corners of the top outer wall of the second mounting member 2 .

[0028] It should be noted here that the positioning rod 14 can be inserted into the corresponding positioning groove 15 to facilitate the vertical alignment of the threaded through hole 3 and the internal threaded tube 4 .

[0029] In a preferred embodiment, one end of the limiting plate 1002 away from the nut 1001 extends into the vertical slot 12 , and the width of the limiting plate 1002 matches the width of the inner wall of the vertical slot 12 .

[0030] It should be noted here that one end of the limiting plate 1002 extends into the vertical groove 12, which can limit the nut 1001. When the cross bolt 9 is rotated, the nut 1001 will not rotate with the rotation of the cross bolt 9, but move upward.

[0031] In a preferred embodiment, the inner diameter of the upper sealing ring 5 is greater than the inner diameter of the lower sealing ring 6 .

[0032] It should be noted here that: it is convenient to squeeze the inner ring part of the lower sealing ring 6 into the connection between the threaded through hole 3 and the hexagonal bolt 7 to improve the sealing effect.

[0033] Working principle: By inserting the positioning rod 14 into the corresponding positioning groove 15, it is convenient to align the threaded through hole 3 and the internal threaded tube 4 up and down, and the hexagonal bolt 7 can be screwed into the threaded through hole 3 and the internal threaded tube 4 to fix the first mounting member 1 and the second mounting member 2 together. The nut of the hexagonal bolt 7 can be pressed on the upper sealing ring 5 to seal the top of the threaded through hole 3, and the lower sealing ring 6 can seal the bottom of the threaded through hole 3;

[0034] When the hexagonal bolt 7 is screwed in, the top pressure plate 1003 is affected by gravity and falls to a horizontal state. You can hold the hexagonal bolt 7 with your hand to prevent it from tilting and at the same time stop the top pressure plate 1003 from falling. After the hexagonal bolt 7 is screwed in and installed, the vertical top pressure plate 1003 is affected by gravity and falls to a horizontal state. You can rotate the cross bolt 9 to make the nut 1001 rise, thereby driving the top pressure plate 1003 to rise, so that the top pressure plate 1003 presses on the lower sealing ring 6 from below, which exerts pressure and fixes the lower sealing ring 6, so that the lower sealing ring 6 will not fall off, thereby ensuring the sealing.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fastener sealing structure, comprising: A hexagonal bolt (7) for fastening the first mounting member (1) and the second mounting member (2), a threaded through hole (3) provided on the top outer wall of the first mounting member (1), an internally threaded tube (4) fixed to the top outer wall of the second mounting member (2), and an upper sealing ring (5) and a lower sealing ring (6) respectively bonded to the upper and lower outer walls of the first mounting member (1), The invention is characterized in that it also includes: a through hole (8) formed on the outer wall at the top of the hexagonal bolt (7); a cross bolt (9) is rotatably mounted on the inner wall of the through hole (8); a top pressing assembly (10) is screwed onto the outer wall of the cross bolt (9); a groove (11) is formed on the screw rod of the hexagonal bolt (7); and vertical grooves (12) are equidistantly distributed on the inner wall of the groove (11).

2. A fastener sealing structure according to claim 1, characterized in that: The pressing assembly (10) comprises a nut (1001), a limiting plate (1002) fixed to the outer wall of the nut (1001) and distributed at equal distances, and a pressing plate (1003) hinged to the outer wall of the nut (1001) and distributed at equal distances.

3. The fastener sealing structure according to claim 1, characterized in that: A bearing (13) is fixed on the inner wall of the through hole (8), and a cross bolt (9) is fixed on the inner ring of the bearing (13).

4. The fastener sealing structure according to claim 1, characterized in that: Positioning rods (14) are fixed at the four corners of the bottom outer wall of the first mounting member (1), and positioning grooves (15) are opened at the four corners of the top outer wall of the second mounting member (2).

5. The fastener sealing structure according to claim 2, characterized in that: The end of the limiting plate (1002) away from the nut (1001) extends into the vertical groove (12), and the width of the limiting plate (1002) is adapted to the width of the inner wall of the vertical groove (12).

6. The fastener sealing structure according to claim 1, characterized in that: The inner diameter of the upper sealing ring (5) is greater than the inner diameter of the lower sealing ring (6).

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