Hydraulic part connector with sealing flange plate

Abstract

The hydraulic part connector with the sealing flange plate comprises a communicating pipe, a hexagonal block is integrally and fixedly connected to the surface of the communicating pipe, sealing threads are arranged on the top of the surface of the communicating pipe, and limiting holes are formed in the end face of the top of the hexagonal block and are symmetrical to each other. The sealing ring is arranged on the inner surface of the sealing cover in a sleeving mode so that the sealing ring can be attached to the outer surface of the communicating pipe, after one end face of the communicating pipe is welded to a pipeline, the communicating pipe can be communicated with another pipeline through sealing threads, after communication is completed, the limiting threaded bolt is rotated in a threaded mode through rotation of the rotating handle, and therefore the loosening situation is achieved; then, a sealing cover is pulled, so that a limiting rod is driven to slide on the inner surface of a limiting hole, a sealing ring is attached to the joint between a communicating pipe and a connecting pipe, and finally, the limiting threaded bolt is fastened, so that the limiting threaded bolt is in threaded connection with the inner surface of a second threaded hole; and the position of the sealing cover is limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic component joints, in particular to a hydraulic component joint with a sealing flange. Background Art

[0002] A hydraulic joint is an accessory that connects different hydraulic components (pumps, delivery pipelines, reversing valves, stop valves, hydraulic motors, hydraulic cylinders, and some auxiliary components, such as level gauges, thermometers, pressure gauges, etc.) to form a closed-loop hydraulic system.

[0003] Depending on the usage, one connection method is to weld one side of the connecting pipe to the oil pipe, and the other end is connected to other oil pipes by threaded connection, so as to achieve the purpose of sealed connection. However, after long-term use, the edge sealing of the threaded connection is reduced, and oxidation and rust may occur, which increases the difficulty of maintenance and disassembly. For this reason, we propose a hydraulic parts joint with a sealing flange to solve the above-mentioned shortcomings. Utility Model Content

[0004] The utility model aims to provide a hydraulic component joint with a sealing flange, which has the purpose of improving the edge sealing of the threaded connection to solve the above-mentioned background technical problems.

[0005] The technical solution of the utility model for solving the above technical problems is as follows: a hydraulic fittings joint with a sealing flange comprises a connecting pipe, the surface of the connecting pipe is integrally fixedly connected with a hexagonal block, the top of the surface of the connecting pipe is provided with a sealing thread, a limiting hole is provided at the top end face of the hexagonal block and at mutually symmetrical positions, the top of the limiting hole is inserted and slidably connected with a limiting rod, the top of the limiting rod is fixedly connected with a sealing cover, the top and bottom of the surface of the limiting rod are respectively connected with a through threaded hole 1 and a through threaded hole 2, the inner surfaces of the threaded hole 1 and the threaded hole 2 are both threadedly connected with a limiting threaded bolt, the outer surface of the limiting threaded bolt is fixedly connected with a rotating handle, through holes are provided on both sides of the surface of the hexagonal block, the through holes are connected with the inner cavity of the limiting hole, the side of the limiting threaded bolt close to the hexagonal block passes through the through hole and is threadedly connected between the threaded hole 1 and the threaded hole 2, the inner surface of the sealing cover is filled with a sealing ring, and the inner surface of the sealing ring fits with the outer surface of the connecting pipe.

[0006] Preferably, the bottom of the inner cavity of the sealing cover is integrally injection-molded with a convex edge, and the top of the convex edge fits with the bottom end surface of the sealing ring.

[0007] Preferably, a socket is formed on the end surface of the rotating handle away from the limiting threaded bolt.

[0008] Preferably, the bottom end surface of the connecting pipe is a welding connection.

[0009] Preferably, the outer surface of the limiting rod slides in contact with the inner surface of the limiting hole, the bottom end face of the sealing cover at the initial position fits with the top of the hexagonal block, and the top end face of the sealing cover at the initial position is lower than the lowest position of the sealing thread.

[0010] Preferably, when the sealing cover is in the initial position, the inner surface of the threaded hole 1 is threadedly connected to the outer surface of the limiting threaded bolt.

[0011] 1. The beneficial effects of the utility model are as follows: the utility model pre-sets the sealing ring on the inner surface of the sealing cover so that it fits on the outer surface of the connecting pipe. After one end face of the connecting pipe is welded on the pipeline, it can be connected with another pipeline through the sealing thread. After the connection is completed, the limiting threaded bolt is threadedly rotated by rotating the rotating handle, thereby achieving the loosening condition, and then the limiting threaded bolt leaves the threaded hole 1 and finally leaves the through hole, and then the sealing cover is pulled, thereby driving the limiting rod to slide on the inner surface of the limiting hole, and then the sealing ring is fit to the connection between the connecting pipe and the connecting pipe, and finally the limiting threaded bolt is tightened so that the limiting threaded bolt is threadedly connected with the inner surface of the threaded hole 2, thereby limiting the position of the sealing cover. By setting the above structure, the sealing property of the edge of the threaded connection is improved, oxidation and rusting are reduced, and the difficulty of disassembly is reduced.

[0012] 2. The utility model provides a convex edge to facilitate the filling and placement of the sealing ring.

[0013] 3. The utility model can facilitate the insertion of an external plug rod by providing a plug hole, thereby facilitating the rotation of the hexagonal block, replacing the method of clamping an external wrench on the surface of the hexagonal block for rotation.

[0014] 4. The utility model can be conveniently welded at the pipe mouth of the pipeline by arranging the welding connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] in:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the disassembly of the structure of the utility model;

[0018] Figure 3 It is a partial enlarged view of point A of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Connecting pipe; 2. Hexagonal block; 3. Sealing thread; 4. Limiting hole; 5. Limiting rod; 6. Sealing cover; 7. Threaded hole 1; 8. Threaded hole 2; 9. Limiting threaded bolt; 10. Turning handle; 11. Sealing ring; 12. Socket; 13. Through hole; 14. Welding connection. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of a hydraulic component joint with a sealing flange according to the present invention will be described with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] Figure 1-3A hydraulic joint with a sealing flange of an embodiment of the utility model is shown, comprising a connecting pipe 1, a hexagonal block 2 is integrally fixedly connected to the surface of the connecting pipe 1, a sealing thread 3 is arranged on the top of the surface of the connecting pipe 1, a limiting hole 4 is provided at the top end face of the hexagonal block 2 and at mutually symmetrical positions, a limiting rod 5 is inserted and slidably connected to the top of the limiting hole 4, a sealing cover 6 is fixedly connected to the top of the limiting rod 5, the bottom of the inner cavity of the sealing cover 6 is integrally injection-molded with a convex edge, and the top of the convex edge is in contact with the bottom end face of the sealing ring 11, and the convex edge is arranged to facilitate the filling and placement of the sealing ring 11, and the limiting rod 5 is provided to facilitate the filling and placement of the sealing ring 11. The top and bottom of the surface are respectively connected with a through threaded hole 1 7 and a threaded hole 2 8, the outer surface of the limiting rod 5 fits and slides with the inner surface of the limiting hole 4, the bottom end face of the sealing cover 6 at the initial position fits with the top of the hexagonal block 2, the top end face of the sealing cover 6 at the initial position is lower than the lowest position of the thread of the sealing thread 3, the inner surfaces of the threaded hole 1 7 and the threaded hole 2 8 are both threadedly connected with the limiting threaded bolt 9, when the sealing cover 6 is in the initial position, the inner surface of the threaded hole 1 7 is threadedly connected with the outer surface of the limiting threaded bolt 9, the outer surface of the limiting threaded bolt 9 is fixedly connected with a rotating handle 10, the surface of the hexagonal block 2 Through holes 13 are provided on both sides of the connecting pipe 1, and the through holes 13 are connected with the inner cavity of the limiting hole 4. The limiting threaded bolt 9 passes through the through hole 13 on the side close to the hexagonal block 2 and is threadedly connected between the threaded hole 1 7 and the threaded hole 2 8. The inner surface of the sealing cover 6 is filled with a sealing ring 11, and the inner surface of the sealing ring 11 fits with the outer surface of the connecting pipe 1. The sealing ring 11 is pre-set on the inner surface of the sealing cover 6 to fit the outer surface of the connecting pipe 1. After one end face of the connecting pipe 1 is welded to the pipeline, it can be connected with another pipeline through the sealing thread 3. After the connection is completed, the limiting threaded bolt 9 is rotated by rotating the rotating handle 10 to The threaded bolt 9 is threadedly rotated to achieve loosening, so that the limiting threaded bolt 9 leaves the threaded hole 7 and finally leaves the through hole 13, and then the sealing cover 6 is pulled, thereby driving the limiting rod 5 to slide on the inner surface of the limiting hole 4, and then the sealing ring 11 is fitted at the connection between the connecting pipe 1 and the connecting pipe, and finally the limiting threaded bolt 9 is tightened, so that the limiting threaded bolt 9 is threadedly connected to the inner surface of the threaded hole 8, and then the position of the sealing cover 6 is limited. By setting the above structure, the sealing performance of the edge of the threaded connection is improved, oxidation and rusting are reduced, and the difficulty of disassembly is reduced.

[0024] Embodiment 2:

[0025] Figure 1-3A hydraulic fitting with a sealing flange according to an embodiment of the utility model is shown, comprising a connecting pipe 1, the bottom end face of the connecting pipe 1 is a welding connection 14, by setting the welding connection 14, it can be conveniently welded at the pipe mouth of the pipeline, the surface of the connecting pipe 1 is integrally fixedly connected with a hexagonal block 2, the top of the surface of the connecting pipe 1 is provided with a sealing thread 3, the top end face of the hexagonal block 2 and the mutually symmetrical positions are provided with a limiting hole 4, the top of the limiting hole 4 is plugged and slidably connected with a limiting rod 5, the top of the limiting rod 5 is fixedly connected with a sealing cover 6, the top and bottom of the surface of the limiting rod 5 are respectively connected with a through threaded hole 1 7 and a threaded hole 2 8, the inner surfaces of the threaded hole 1 7 and the threaded hole 2 8 A limiting threaded bolt 9 is threadedly connected, and a rotating handle 10 is fixedly connected to the outer surface of the limiting threaded bolt 9. A socket 12 is provided on the end surface of the rotating handle 10 away from the limiting threaded bolt 9. By setting the socket 12, an external plug rod can be easily inserted, thereby facilitating the rotation of the hexagonal block 2, instead of an external wrench clamped on the surface of the hexagonal block 2 for rotation. Through holes 13 are provided on both sides of the surface of the hexagonal block 2, and the through holes 13 are connected to the inner cavity of the limiting hole 4. The side of the limiting threaded bolt 9 close to the hexagonal block 2 passes through the through hole 13 and is threadedly connected between the threaded hole 1 7 and the threaded hole 2 8. The inner surface of the sealing cover 6 is filled with a sealing ring 11, and the inner surface of the sealing ring 11 fits with the outer surface of the connecting pipe 1.

[0026] Working principle: When the utility model is used, the connecting pipe 1 can be welded to the pipeline through the welding connection 14 and the use of a welding machine, and the sealing ring 11 is pre-set on the inner surface of the sealing cover 6 to make it fit on the outer surface of the connecting pipe 1. After one end face of the connecting pipe 1 is welded to the pipeline, it can be connected with another pipeline through the sealing thread 3. After the connection is completed, the limiting threaded bolt 9 is threadedly rotated by rotating the rotating handle 10, so as to achieve the loosening, and then the limiting threaded bolt 9 leaves the threaded hole 1 7 and finally leaves the through hole 13, and then the sealing cover 6 is pulled, thereby driving the limiting rod 5 to slide on the inner surface of the limiting hole 4, and then the sealing ring 11 is fit to the connection between the connecting pipe 1 and the connecting pipe, and finally the limiting threaded bolt 9 is tightened so that the limiting threaded bolt 9 is threadedly connected to the inner surface of the threaded hole 2 8, thereby limiting the position of the sealing cover 6. By setting the above structure, the sealing of the edge of the threaded connection is improved.

Claims

1. A hydraulic joint with a sealing flange, comprising a connecting pipe (1), a hexagonal block (2) integrally fixedly connected to the surface of the connecting pipe (1), a sealing thread (3) provided on the top of the surface of the connecting pipe (1), characterized in that: The top end surface of the hexagonal block (2) is provided with a limiting hole (4) at a mutually symmetrical position. The top of the limiting hole (4) is inserted and slidably connected to a limiting rod (5). The top of the limiting rod (5) is fixedly connected to a sealing cover (6). The top and bottom of the surface of the limiting rod (5) are respectively connected to a through threaded hole 1 (7) and a threaded hole 2 (8). The inner surfaces of the threaded hole 1 (7) and the threaded hole 2 (8) are both threadedly connected to a limiting threaded bolt (9). The limiting threaded bolt (9) The outer surface of the hexagonal block (2) is fixedly connected with a rotating handle (10), through holes (13) are opened on both sides of the surface of the hexagonal block (2), and the through holes (13) are connected with the inner cavity of the limiting hole (4). The limiting threaded bolt (9) passes through the through hole (13) on the side close to the hexagonal block (2) and is threadedly connected with the threaded hole 1 (7) and the threaded hole 2 (8). The inner surface of the sealing cover (6) is filled with a sealing ring (11), and the inner surface of the sealing ring (11) is in contact with the outer surface of the connecting pipe (1).

2. A hydraulic component joint with a sealing flange according to claim 1, characterized in that: The bottom of the inner cavity of the sealing cover (6) is integrally injection-molded with a convex edge, and the top of the convex edge is in contact with the bottom end surface of the sealing ring (11).

3. A hydraulic component joint with a sealing flange according to claim 1, characterized in that: An insertion hole (12) is formed on the end surface of the rotating handle (10) away from the limiting threaded bolt (9).

4. A hydraulic component joint with a sealing flange according to claim 1, characterized in that: The bottom end surface of the connecting pipe (1) is a welding connection (14).

5. A hydraulic component joint with a sealing flange according to claim 1, characterized in that: The outer surface of the limiting rod (5) is fitted and slid with the inner surface of the limiting hole (4), the bottom end surface of the sealing cover (6) at the initial position is fitted with the top of the hexagonal block (2), and the top end surface of the sealing cover (6) at the initial position is lower than the lowest position of the thread of the sealing thread (3).

6. A hydraulic component joint with a sealing flange according to claim 5, characterized in that: When the sealing cover (6) is in the initial position, the inner surface of the threaded hole 1 (7) is threadedly connected to the outer surface of the limiting threaded bolt (9).

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