Hydraulic pipe connecting structure and hydraulic system for cubic press

Abstract

The utility model relates to the technical field of hydraulic pipe connection, in particular to a hydraulic pipe connecting structure which comprises a first hydraulic pipe, a left sealing clamping groove is formed in the outer surface of the first hydraulic pipe, a left sealing ring is fixedly connected to the surface of the left sealing clamping groove, and the outer surface of the left sealing ring is integrally formed on the inner surface of a first connecting pipe; the hydraulic pipe connecting structure and the hydraulic system for the cubic press have the beneficial effects that the surface of the left sealing clamping groove is fixedly connected with the outer surface of the left sealing ring, so that the first hydraulic pipe and the first connecting pipe are connected to achieve a sealing effect; the outer surface of a first connecting pipe is inserted into a left sealing clamping groove, so that the first connecting pipe and a second connecting pipe can be movably connected, the surface of a right sealing ring is fixedly connected with the outer surface of a right sealing clamping groove, and therefore the sealing effect is achieved through connection between a second hydraulic pipe and the second connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pipe connection, in particular to a hydraulic pipe connection structure and a hydraulic system for a six-sided top press. Background Art

[0002] A hydraulic pipe is a pipe used to transmit hydraulic pressure, and a hydraulic pipe joint is a component that connects hydraulic pipes in a hydraulic system.

[0003] However, the existing hydraulic pipe connection structure usually adopts flange connection or threaded connection, which requires the use of tools such as wrenches to force the knobs to connect the bolts. The flange connection has good sealing performance, but the flange needs to be fixed to the hydraulic pipe in advance, but the sealing performance is poorer than the flange connection, and the threads are prone to rust over time, making the sealing performance even worse.

[0004] Therefore, we need a hydraulic pipe connection structure and a hydraulic system for a six-sided top press, which can solve the problem of hydraulic pipe connection sealing of the existing six-sided top press and can also realize the rapid disassembly and separation of the hydraulic pipe connection of the six-sided top press. Summary of the Invention

[0005] The purpose of the present utility model is to provide a hydraulic pipe connection structure and a hydraulic system for a six-sided top press, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic pipe connection structure, comprising a first hydraulic pipe, a left sealing groove being provided on the outer surface of the first hydraulic pipe, a left sealing ring being fixedly connected to the surface of the left sealing groove, the outer surface of the left sealing ring being integrally formed on the inner surface of the first connecting pipe, the outer surface of the first connecting pipe being plugged into the interior of the second connecting pipe, an integrally formed right sealing ring being provided on the inner surface of the second connecting pipe, the surface of the right sealing ring being fixedly connected to the surface of the right sealing groove, and the right sealing groove being provided on the outer surface of the second hydraulic pipe.

[0007] Preferably, an integrally formed positioning rod is provided on the end surface of the first connecting tube, the surface of the positioning rod is plugged into the surface of the positioning hole, and the positioning hole is provided inside the second connecting tube.

[0008] Preferably, the depth of the positioning hole is equal to the length of the positioning rod, the radius of the positioning hole is equal to the end radius of the positioning rod, there are six positioning rods, and the six positioning rods are arranged in an equidistant circular array along the end face of the first connecting tube.

[0009] Preferably, a cavity through hole is opened inside the second connecting tube, and a tenon is movably connected to the surface of the cavity through hole, and an integrally formed limit plate is provided on the surface of the tenon. The bottom end of the tenon is clamped to the surface of the clamping ring, and the clamping ring is opened on the outer surface of the first connecting tube.

[0010] Preferably, a limiting guide groove is provided on the outer surface of the second connecting tube, an extrusion ring is movably connected to the surface of the limiting guide groove, the inner ring surface of the extrusion ring rests on the end of the tenon, and a reset spring is sleeved on the surface of the limiting guide groove.

[0011] Preferably, the clamping ring is arranged in an annular groove, the surface of the clamping ring is against the end of the tenon, the end of the tenon is arranged in an arc-shaped protrusion, there are six tenons, and the six tenons are arranged in an annular array along the center point of the second connecting tube.

[0012] A hydraulic system for a six-sided top press comprises a hydraulic pipe connection structure.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by fixing the surface of the left sealing groove to the outer surface of the left sealing ring, the connection between the first hydraulic pipe and the first connecting pipe has a sealing effect, the outer surface of the first connecting pipe is inserted into the interior of the left sealing groove, so that the first connecting pipe and the second connecting pipe can be movably connected, and the surface of the right sealing ring is fixed to the outer surface of the right sealing groove, so that the connection between the second hydraulic pipe and the second connecting pipe has a sealing effect, and by movably connecting the interior of the extrusion ring to the surface of the limiting guide groove, when the inner ring surface of the extrusion ring rests on the top of the tenon, the bottom end of the tenon cannot move on the surface of the cavity through hole, so that the lock between the first connecting pipe and the second connecting pipe cannot be disassembled and separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic top view of the overall structure of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the middle AA section;

[0017] Figure 4 This is a schematic diagram of the connection between the second hydraulic pipe and the second connecting pipe;

[0018] Figure 5 for Figure 3 Enlarged schematic diagram of point A in the middle.

[0019] In the figure: first hydraulic pipe 1, first connecting pipe 2, second hydraulic pipe 3, second connecting pipe 4, left sealing groove 5, left sealing ring 6, positioning hole 7, positioning rod 8, limiting guide groove 9, return spring 10, right sealing groove 11, right sealing ring 12, extrusion ring 13, tenon 14, snap ring 15, cavity through hole 16. DETAILED DESCRIPTION

[0020] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a hydraulic pipe connection structure, including a first hydraulic pipe 1, a left sealing groove 5 is opened on the outer surface of the first hydraulic pipe 1, and the surface of the left sealing groove 5 is fixedly connected with a left sealing ring 6, the outer surface of the left sealing ring 6 is integrally formed with the inner surface of the first connecting pipe 2, the outer surface of the first connecting pipe 2 is inserted into the interior of the second connecting pipe 4, and the inner surface of the second connecting pipe 4 is provided with an integrally formed right sealing ring 12, the surface of the right sealing ring 12 is fixedly connected to the surface of the right sealing groove 11, and the right sealing groove 11 is opened on the outer surface of the second hydraulic pipe 3. By fixing the surface of the left sealing groove 5 to the outer surface of the left sealing ring 6, a sealing effect is achieved between the first hydraulic pipe 1 and the first connecting pipe 2. The outer surface of the first connecting pipe 2 is inserted into the interior of the left sealing groove 5, so that the first connecting pipe 2 and the second connecting pipe 4 can be movably connected. The surface of the right sealing ring 12 is fixedly connected to the outer surface of the right sealing groove 11, so that a sealing effect is achieved between the second hydraulic pipe 3 and the second connecting pipe 4.

[0023] Example 2

[0024] Refer to the attached Figures 1 to 5 On the basis of the first embodiment, in order to lock the connection between the second connecting tube 4 and the first connecting tube 2, an integrally formed positioning rod 8 is provided on the end face of the first connecting tube 2. The surface of the positioning rod 8 is inserted into the surface of the positioning hole 7. The positioning hole 7 is provided inside the second connecting tube 4. A cavity through hole 16 is provided inside the second connecting tube 4. A tenon 14 is movably connected to the surface of the cavity through hole 16. An integrally formed limiting plate is provided on the surface of the tenon 14. The bottom end of the tenon 14 is clamped to the surface of a clamping ring 15. The clamping ring 15 is provided on the outer surface of the first connecting tube 2.

[0025] By arranging an integrally formed positioning rod 8 at the end of the first connecting tube 2, when the surface of the first connecting tube 2 is inserted into the interior of the second connecting tube 4, the positioning rod 8 is inserted into the surface of the positioning hole 7, thereby having a positioning effect on the connection between the first connecting tube 2 and the second connecting tube 4, and by movably connecting the surface of the tenon 14 to the surface of the cavity through hole 16, the end of the tenon 14 is clamped on the surface of the clamping ring 15, so that the connection between the second connecting tube 4 and the first connecting tube 2 is locked, and the first connecting tube 2 and the second connecting tube 4 are pulled in opposite directions so that the tenon 14 is separated from the surface of the clamping ring 15, thereby disassembling and separating the first connecting tube 2 and the second connecting tube 4.

[0026] Example 3

[0027] Refer to the attached Figures 1 to 5 On the basis of the second embodiment, in order to lock the first connecting tube 2 and the second connecting tube 4 so as to prevent them from being disassembled, a limiting guide groove 9 is provided on the outer surface of the second connecting tube 4. An extrusion ring 13 is movably connected to the surface of the limiting guide groove 9. The inner surface of the extrusion ring 13 abuts against the end of the tenon 14. A return spring 10 is sleeved on the surface of the limiting guide groove 9.

[0028] By connecting the internal movability of the extrusion ring 13 to the surface of the limiting guide groove 9, when the inner ring surface of the extrusion ring 13 rests on the top of the tenon 14, the bottom end of the tenon 14 cannot move on the surface of the cavity through hole 16, so that the lock between the first connecting tube 2 and the second connecting tube 4 cannot be disassembled. The elastic force of the reset spring 10 allows the inner surface of the extrusion ring 13 to be continuously compressed on the end of the tenon 14, so that the other end of the tenon 14 is clamped to the surface of the clamping ring 15.

[0029] Example 4

[0030] A hydraulic system for a six-sided top press comprises a hydraulic pipe connection structure.

[0031] In actual use, the surface of the left sealing groove 5 is fixedly connected to the outer surface of the left sealing ring 6, so that the connection between the first hydraulic pipe 1 and the first connecting pipe 2 has a sealing effect, and the outer surface of the first connecting pipe 2 is inserted into the interior of the left sealing groove 5, so that the first connecting pipe 2 and the second connecting pipe 4 can be movably connected, and the surface of the right sealing ring 12 is fixedly connected to the outer surface of the right sealing groove 11, so that the connection between the second hydraulic pipe 3 and the second connecting pipe 4 has a sealing effect. By arranging an integrally formed positioning rod 8 at the end of the first connecting pipe 2, when the first connecting pipe When the surface of the tube 2 is inserted into the interior of the second connecting tube 4, the positioning rod 8 is inserted into the surface of the positioning hole 7, thereby having a positioning effect on the connection between the first connecting tube 2 and the second connecting tube 4. By movably connecting the surface of the tenon 14 to the surface of the cavity through hole 16, the end of the tenon 14 is clamped on the surface of the clamping ring 15, so that the connection between the second connecting tube 4 and the first connecting tube 2 is locked. Pulling the first connecting tube 2 and the second connecting tube 4 in opposite directions makes the tenon 14 detach from the surface of the clamping ring 15, thereby disassembling and separating the first connecting tube 2 and the second connecting tube 4.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pipe connection structure, comprising a first hydraulic pipe (1), characterized in that: The outer surface of the first hydraulic pipe (1) is provided with a left sealing groove (5), the surface of the left sealing groove (5) is fixedly connected with a left sealing ring (6), the left sealing ring (6) is integrally formed on the inner surface of the first connecting pipe (2), the first connecting pipe (2) is plugged into the interior of the second connecting pipe (4), the inner surface of the second connecting pipe (4) is provided with an integrally formed right sealing ring (12), the surface of the right sealing ring (12) is fixedly connected with the surface of the right sealing groove (11), and the right sealing groove (11) is provided on the outer surface of the second hydraulic pipe (3).

2. A hydraulic pipe connection structure according to claim 1, characterized in that: The end surface of the first connecting tube (2) is provided with an integrally formed positioning rod (8), the positioning rod (8) is inserted into the positioning hole (7), and the positioning hole (7) is provided inside the second connecting tube (4).

3. A hydraulic pipe connection structure according to claim 2, characterized in that: The depth of the positioning hole (7) is equal to the length of the positioning rod (8), the radius of the positioning hole (7) is equal to the end radius of the positioning rod (8), six positioning rods (8) are provided, and the six positioning rods (8) are arranged in a circular array at equal intervals along the end surface of the first connecting pipe (2).

4. The hydraulic pipe connection structure according to claim 1, characterized in that: A cavity through hole (16) is provided inside the second connecting tube (4), and a tenon (14) is movably connected to the surface of the cavity through hole (16). An integrally formed limiting plate is provided on the surface of the tenon (14), and the bottom end of the tenon (14) is clamped on the surface of a clamping ring (15). The clamping ring (15) is provided on the outer surface of the first connecting tube (2).

5. The hydraulic pipe connection structure according to claim 1, characterized in that: A limiting guide groove (9) is provided on the outer surface of the second connecting pipe (4), and an extrusion ring (13) is movably connected to the surface of the limiting guide groove (9), the inner ring surface of the extrusion ring (13) abuts against the end of the tenon (14), and a reset spring (10) is sleeved on the surface of the limiting guide groove (9).

6. The hydraulic pipe connection structure according to claim 4, characterized in that: The clamping ring (15) is arranged in an annular groove, and the surface of the clamping ring (15) abuts against the end of the tenon (14), and the end of the tenon (14) is arranged in an arc-shaped protrusion. There are six tenons (14), and the six tenons (14) are arranged in an annular array along the center point of the second connecting pipe (4).

7. A hydraulic system for a six-sided top press, characterized by: The hydraulic pipe connection structure includes any one of claims 1 to 6.

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