Double-seal combined hydraulic joint

Abstract

The utility model discloses a double-seal combined hydraulic joint which comprises a joint body, a first connector is fixedly installed at the end of the joint body, a second sealing ring is arranged on the side wall of the first connector, a second connector is arranged in the first connector, and a second sealing ring is arranged on the side wall of the second connector. A first sealing ring located on the outer side of the second connector is arranged in the first connector, two symmetrically-arranged mounting mechanisms are arranged between the first sealing ring and the second sealing ring, and each mounting mechanism comprises a hollow mounting block fixedly mounted on the inner wall of the first connector; and a threaded rod is rotationally connected between the inner top and the inner bottom of the hollow mounting block. According to the utility model, the second connector can be quickly mounted and dismounted by rotating the knob, the operation is simple and convenient, the working efficiency is improved, meanwhile, the first sealing ring and the second sealing ring can tightly abut against the inner walls of the first connector and the positioning block respectively in the mounting process, the sealing effect is improved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic joints, in particular to a double-sealed combined hydraulic joint. Background Art

[0002] Hydraulic joints are used to connect the hydraulic cylinders that constitute the hydraulic system or to connect various mechanical equipment, pipes, hoses or pipelines and other key or interconnected parts of these pipelines. Hydraulic joints usually have several forms of joints, such as ferrule type, thin tube expansion type and welding type.

[0003] At present, the installation method of hydraulic joints is mostly fixed by threads, which is troublesome to install and disassemble. It is difficult to quickly install and disassemble the connectors, which is inconvenient to use. At the same time, most of the existing hydraulic joints are single-layer sealed, with poor sealing performance and low practicality. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a double-seal combined hydraulic joint.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A double-seal combined hydraulic joint comprises a joint body, a first connector is fixedly mounted on the end of the joint body, a second sealing ring is arranged on the side wall of the first connector, a second connector is arranged inside the first connector, a first sealing ring is arranged inside the first connector and is located outside the second connector, and two symmetrically arranged mounting mechanisms are arranged between the first sealing ring and the second sealing ring.

[0007] Preferably, the mounting mechanism includes a hollow mounting block fixedly mounted on the inner wall of the first connecting head, a threaded rod is rotatably connected between the inner top and the inner bottom of the hollow mounting block, a lifting block is threadedly sleeved on the outer wall of the threaded rod, two mounting rods are fixedly mounted on the bottom of the lifting block, two symmetrical auxiliary holes are opened at the bottom of the hollow mounting block, two symmetrical mounting holes are opened on the outer wall of the second connecting head, two fixing rods are fixedly mounted on the bottom of the lifting block, and pressure rods slidably connected to the inner walls on both sides of the hollow mounting block are penetrated, and the first sealing ring and the second sealing ring are both provided with pressure grooves on the side close to the hollow mounting block, and return springs are respectively fixedly connected between the two pressure rods and the inner walls on both sides of the hollow mounting block.

[0008] Preferably, the auxiliary hole and the mounting hole have the same diameter, and the mounting rod is adapted to the mounting hole.

[0009] Preferably, the lifting block is slidably connected to the inner wall of the hollow mounting block.

[0010] Preferably, one end of the two pressing rods located outside the hollow mounting block extends into the two pressing grooves respectively.

[0011] Preferably, one end of the two pressing rods located in the hollow mounting block and the lower ends of the two fixing rods are both provided with inclined surfaces.

[0012] Beneficial effects of the utility model:

[0013] By setting up the installation mechanism, the second connecting head can be quickly installed and disassembled by turning the knob, which is simple and convenient to operate and improves work efficiency. At the same time, during the installation process, the first sealing ring and the second sealing ring can be tightly pressed against the inner wall of the first connecting head and the positioning block respectively, thereby improving the sealing effect and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the double-seal combined hydraulic joint proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure of the double-seal combined hydraulic joint proposed by the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the plane structure at A in the middle.

[0017] In the figure: 1 connector body, 2 first connector, 3 knob, 4 positioning block, 5 positioning groove, 6 second connector, 7 first sealing ring, 8 second sealing ring, 9 hollow mounting block, 10 lifting block, 11 threaded rod, 12 pressing groove, 13 pressing rod, 14 return spring, 15 fixing rod, 16 mounting rod, 17 auxiliary hole, 18 mounting hole. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 3 , a double-seal combined hydraulic joint, comprising a joint body 1, a first connector 2 is fixedly mounted at the end of the joint body 1, a second sealing ring 8 is arranged on the side wall of the first connector 2, a second connector 6 is arranged inside the first connector 2, a first sealing ring 7 is arranged inside the first connector 2 and is located outside the second connector 6, and two symmetrically arranged mounting mechanisms are arranged between the first sealing ring 7 and the second sealing ring 8;

[0020] The mounting mechanism includes a hollow mounting block 9 fixedly mounted on the inner wall of the first connector 2, a threaded rod 11 is rotatably connected between the inner top and the inner bottom of the hollow mounting block 9, a lifting block 10 is threadedly sleeved on the outer wall of the threaded rod 11, two mounting rods 16 are fixedly mounted on the bottom of the lifting block 10, two auxiliary holes 17 symmetrically arranged are opened at the bottom of the hollow mounting block 9, two mounting holes 18 symmetrically arranged are opened on the outer wall of the second connector 6, two fixing rods 15 are fixedly mounted on the bottom of the lifting block 10, and the inner walls on both sides of the hollow mounting block 9 are penetrated with abutments slidably connected thereto. The pressure rod 13, the first sealing ring 7 and the second sealing ring 8 are all provided with a pressure groove 12 on one side close to the hollow mounting block 9, and a return spring 14 is fixedly connected between the two pressure rods 13 and the inner walls on both sides of the hollow mounting block 9, the auxiliary hole 17 is the same diameter as the mounting hole 18, the mounting rod 16 is adapted to the mounting hole 18, the lifting block 10 is slidably connected to the inner wall of the hollow mounting block 9, and the ends of the two pressure rods 13 located outside the hollow mounting block 9 extend into the two pressure grooves 12 respectively, and the ends of the two pressure rods 13 located inside the hollow mounting block 9 and the lower ends of the two fixed rods 15 are both provided with inclined surfaces.

[0021] When the utility model is used, the second connector 6 is inserted into the first connector 2, and the positioning block 4 on the second connector 6 is matched with the positioning groove 5, and then the knob 3 is manually turned to rotate the threaded rod 11. When the threaded rod 11 rotates, the lifting block 10 is threadedly connected with the threaded rod 11, and the lifting block 10 is slidably connected with the inner walls on both sides of the hollow mounting block 9 to achieve limit, and the lifting block 10 will not rotate, so that the lifting block 10 moves downward, and the lifting block 10 moving downward drives the mounting rod 16 to move downward, so that the mounting rod 16 passes through the auxiliary hole 1 7 and inserted into the mounting hole 18 to achieve the installation of the second connector 6. The downward movement of the lifting block 10 also drives the fixing rod 15 to move downward, and the lower end inclined surface of the fixing rod 15 contacts the inclined surface of one end of the pressing rod 13 located in the hollow mounting block 9, so that the two pressing rods 13 move away from each other, the return spring 14 is compressed, and the two pressing rods 13 moving away from each other squeeze the first sealing ring 7 and the second sealing ring 8 respectively, so that the first sealing ring 7 and the second sealing ring 8 are tightly against the inner walls of the first connector 2 and the positioning block 4 respectively, to ensure the sealing effect.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-seal combined hydraulic joint, comprising a joint body (1), characterized in that: A first connector (2) is fixedly mounted at the end of the joint body (1); a second sealing ring (8) is arranged on the side wall of the first connector (2); a second connector (6) is arranged inside the first connector (2); a first sealing ring (7) is arranged inside the first connector (2) and is located outside the second connector (6); and two symmetrical mounting mechanisms are arranged between the first sealing ring (7) and the second sealing ring (8).

2. The double-seal combined hydraulic joint according to claim 1, characterized in that: The mounting mechanism comprises a hollow mounting block (9) fixedly mounted on the inner wall of the first connecting head (2), a threaded rod (11) being rotatably connected between the inner top and the inner bottom of the hollow mounting block (9), a lifting block (10) being threadedly sleeved on the outer wall of the threaded rod (11), two mounting rods (16) being fixedly mounted on the bottom of the lifting block (10), two auxiliary holes (17) being symmetrically arranged being opened at the bottom of the hollow mounting block (9), two mounting holes (18) being symmetrically arranged being opened on the outer wall of the second connecting head (6), two fixing rods (15) being fixedly mounted on the bottom of the lifting block (10), both inner walls on both sides of the hollow mounting block (9) being penetrated by pressing rods (13) being slidably connected thereto, both the first sealing ring (7) and the second sealing ring (8) being provided with pressing grooves (12) on the sides close to the hollow mounting block (9), and return springs (14) being fixedly connected between the two pressing rods (13) and the inner walls on both sides of the hollow mounting block (9).

3. The double-seal combined hydraulic joint according to claim 2, characterized in that: The auxiliary hole (17) and the mounting hole (18) have the same diameter, and the mounting rod (16) is compatible with the mounting hole (18).

4. The double-seal combined hydraulic joint according to claim 2, characterized in that: The lifting block (10) is slidably connected to the inner wall of the hollow mounting block (9).

5. The double-seal combined hydraulic joint according to claim 2, characterized in that: One end of the two pressing rods (13) located outside the hollow mounting block (9) extends into the two pressing grooves (12) respectively.

6. The double-seal combined hydraulic joint according to claim 2, characterized in that: One end of the two pressing rods (13) located in the hollow mounting block (9) and the lower ends of the two fixing rods (15) are both provided with inclined surfaces.

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