CN-224200953-U - Hexagonal nut of embedded sealing gasket

Abstract

The utility model discloses an embedded type sealing gasket hexagonal nut, which belongs to the technical field of hexagonal nuts and comprises a hexagonal screw main body and a hexagonal nut main body, wherein the hexagonal nut main body is in threaded connection with the hexagonal screw main body, a sealing gasket plate II is sleeved on the hexagonal screw main body, a sealing ring II is fixedly arranged in the sealing gasket plate II, a plurality of embedded inserting pieces II are fixedly arranged at the bottom end of the sealing gasket plate II, a sealing gasket plate I is fixedly arranged at the top end of the hexagonal nut main body, a sealing ring I is fixedly arranged on the sealing gasket plate I, and a mounting groove matched with the sealing ring II is formed in the sealing gasket plate II. The embedded gasket is combined with the adjustable extrusion mechanism, so that initial sealing and long-term stability are ensured, the embedded inserting piece is meshed with the connected piece, the gasket is prevented from shifting, extrusion force can be dynamically adjusted, the sealing effect is further improved, and meanwhile, the hexagonal screw main body is limited at one time, so that the installation is firmer.

Inventors

• XU CHAOQUN
• Ma Enlei

Assignees

• 无锡市锦恒标准件有限公司

Dates

Publication Date

20260505

Application Date

20250625

Claims (6)

1. 1. The embedded sealing gasket hexagonal nut is characterized by comprising a hexagonal screw main body (1) and a hexagonal nut main body (2), wherein the hexagonal nut main body (2) is in threaded connection with the hexagonal screw main body (1), a sealing gasket plate II (6) is sleeved on the hexagonal screw main body (1), a sealing ring II (8) is fixedly installed in the sealing gasket plate II (6), a plurality of embedded inserting pieces II (9) are fixedly installed at the bottom end of the sealing gasket plate II (6), a sealing gasket plate I (3) is fixedly installed at the top end of the hexagonal nut main body (2), a sealing ring I (4) is fixedly installed on the sealing gasket plate I (3), a mounting groove matched with the sealing ring II (8) is formed in the sealing gasket plate II (6), a plurality of embedded first (5) are fixedly installed at the top end of the sealing gasket plate I (3), a plurality of embedded first (5) are fixedly installed in the hexagonal screw main body (1), a circular insert rod (10) is installed in the circular insert rod, and a limiting assembly (10) is extruded in the circular insert rod.
2. 2. The embedded sealing gasket hexagonal nut according to claim 1, wherein the second limiting extrusion assembly comprises a small threaded rod (11) and two threaded rings (14), the two threaded rings (14) are in threaded connection with the small threaded rod (11), a plurality of first rotary round blocks (19) are fixedly arranged on the outer side of the threaded rings (14), a plurality of sliding long plates (12) are slidably arranged in the hexagonal screw main body (1), a plurality of second rotary round blocks (17) are fixedly arranged on one side of the sliding long plates (12), one connecting plate (16) is rotatably arranged between every two adjacent first rotary round blocks (19), and every two adjacent second rotary round blocks (17) are rotatably connected with one connecting plate (16).
3. 3. The embedded sealing gasket hexagonal nut according to claim 2, wherein a rotary round block three (7) is fixedly installed at the top end of the small threaded rod (11), a cross groove is formed in the rotary round block three (7), a hexagonal groove is formed in the hexagonal screw main body (1), and a rotary round groove matched with the rotary round block three (7) is formed in the bottom end of the hexagonal groove.
4. 4. The embedded sealing gasket hexagonal nut according to claim 2, wherein a first rotary round rod (15) and a second rotary round rod (18) are fixedly installed on two sides of the connecting plate (16), a rotary concave hole matched with the first rotary round rod (15) is formed in the first rotary round block (19), and a rotary round hole matched with the second rotary round rod (18) is formed in the second rotary round block (17).
5. 5. The embedded sealing gasket hexagonal nut according to claim 2, wherein a mounting strip groove is formed in one side of the sliding long plate (12), a rubber extrusion plate (13) is fixedly mounted in the mounting strip groove, and a sliding circular groove matched with the threaded circular ring (14) is formed in the inner fixed circular rod (10).
6. 6. The embedded sealing gasket hexagonal nut according to claim 2, characterized in that a sliding concave bar hole matched with the sliding long plate (12) is formed in the hexagonal screw main body (1), a sliding moving groove matched with the connecting plate (16) is formed in the hexagonal screw main body (1), and two thread grooves with opposite rotation directions are formed in the small threaded rod (11).

Description

Hexagonal nut of embedded sealing gasket Technical Field The utility model relates to the technical field of hexagonal nuts, in particular to an embedded sealing gasket hexagonal nut. Background In the field of mechanical connections, nuts are widely used as fastening elements in various devices and structures. The conventional hexagonal nut usually relies on an independent sealing gasket to realize the sealing of a connecting part, but the split type design has obvious limitation that the independent gasket needs to be manually placed on a connecting surface, is easy to deviate, incline or not completely fit due to operation errors, and has higher risk of sealing failure especially under vibration, high pressure or temperature change environments. The assembly efficiency is low, and the gasket is required to be aligned and then the nut is required to be screwed down during installation, so that the steps are complicated and time-consuming. Under narrow space or complicated operating mode, the operation degree of difficulty is bigger, and the gasket probably need install repeatedly because of extrusion drops. The space occupation is large, the thickness of the connecting part is increased by the independent gasket, and the gasket can not be used in precision equipment or compact structures due to insufficient space. Traditional limit structure (such as clamping groove, glue are fixed) is easy to be lost due to ageing or stress relaxation of materials, and the gasket falls off. The adjustable sealing mechanism (such as an external compression ring) has a complex structure, needs additional tools for adjustment and is inconvenient to operate. Through with sealing gasket and nut main part integrated design, combine adjustable extrusion mechanism and multiple limit structure, realize that automatic compensation seals, anti-vibration locking, quick installation and long-term reliable seal, satisfy the mechanical connection demand under adverse circumstances such as high pressure, vibration, corruption. In the traditional mechanical connection, a common hexagonal nut is matched with an independent sealing gasket to realize sealing. The problem that the independent gasket is prone to sealing inaccuracy caused by improper installation, particularly easy to fail in a vibration or high-pressure environment, the gasket is required to be placed independently and aligned with the bolt, the operation is complex, the efficiency is low, and after long-term use, the gasket can be aged or loosened and fall off, so that leakage risk is caused, and therefore, the problem is solved by the embedded sealing gasket hexagonal nut. Disclosure of utility model The utility model aims to provide an embedded sealing gasket hexagonal nut which is used for solving the problems in the background technology. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The hexagonal nut comprises a hexagonal screw main body and a hexagonal nut main body, wherein the hexagonal nut main body is in threaded connection with the hexagonal screw main body, a second sealing gasket plate is sleeved on the hexagonal screw main body, a second sealing ring is fixedly installed in the second sealing gasket plate, a plurality of second embedded inserting pieces are fixedly installed at the bottom end of the second sealing gasket plate, a first sealing gasket plate is fixedly installed at the top end of the hexagonal nut main body, a first sealing ring is fixedly installed on the first sealing gasket plate, a mounting groove matched with the first sealing ring is formed in the second sealing gasket plate, a connecting groove matched with the first sealing ring is formed in the first sealing gasket plate, a plurality of first embedded inserting pieces are fixedly installed at the top end of the first sealing gasket plate, an inner fixing round rod is fixedly installed in the hexagonal screw main body, and a second limiting extrusion assembly is arranged in the inner fixing round rod. Preferably, the second limiting extrusion assembly comprises a small threaded rod and two threaded rings, wherein the two threaded rings are in threaded connection with the small threaded rod, a plurality of first rotary round blocks are fixedly arranged on the outer side of the threaded rings, a plurality of sliding long plates are slidably arranged in the hexagonal screw main body, a plurality of second rotary round blocks are fixedly arranged on one side of each sliding long plate, the same connecting plate is rotatably arranged between the two adjacent first rotary round rods, and the two adjacent second rotary round blocks are rotatably connected with the same connecting plate. Preferably, the top end of the small threaded rod is fixedly provided with a rotary round block III, a cross groove is formed in the rotary round block III, a hexagonal groove is formed in the hexagonal screw main body, and a rotary round groove matched wi