CN202228825U

CN202228825U - Leakage-proof joint

Info

Publication number: CN202228825U
Application number: CN2011203139728U
Authority: CN
Inventors: 于传江; 王海盈; 陈照明; 李晴; 李亚宁
Original assignee: Shandong Coal Geological Machinery Plant
Current assignee: Shandong Coal Geological Machinery Plant
Priority date: 2011-08-24
Filing date: 2011-08-24
Publication date: 2012-05-23
Anticipated expiration: 2021-08-24

Abstract

The utility model discloses a leakage-proof joint and relates to the technical field of hydraulic drive. The leakage-proof joint is formed through the insert connection by an inner conical joint (1) and an outer conical joint (2), wherein the inner conical joint and the outer conical joint are closely connected through a connecting nut; two conical head valve cores are extruded at the top ends, move backwards and tightly compress the respective return springs; cone-shaped oil ports of the two joints are opened so as to form a passage; at the moment, the conical surface sealing of 24 DEG is adopted between the inner conical joint and the outer conical joint, and a sealing is added by means of an O-shaped seal ring between the two conical surfaces to ensure that the sealing is more reliable; and when the inner conical joint and the outer conical joint are disconnected, two conical head valve cores are extruded outwards under the action of a spring force of the respective return springs to ensure that the cone-shaped oil ports of the two joints are tightly compressed and sealed, the oil circuit is closed, therefore, the oil is not leaked, the waste of the oil in the hydraulic drive process and the pollution of working places are decreased. The leakage-proof joint is simple in structure and convenient and rapid in disassembly and assembly when components are replaced.

Description

The anti-leak joint

Technical field

The utility model relates to hydraulic transmission technology field, is a kind of anti-leak joint specifically.

Background technique

Hydraulic transmission technology is widely used, and bores such as engineering machinery, mining machinery, tunnel drilling-production equipment, geological drilling equipment, well and digs many fields such as equipment, hydraulic elevating platform all at the application hydraulic transmission technology.Hydraulic Power Transmission System mainly contains parts such as oil pump, various control valve, oil cylinder, motor, oil pipe, joint to be formed, and the usage quantity of its middle joint is maximum, all will use joint when each element hydraulic fluid port is connected with oil pipe.At present; Because the workmanship of each parts improves; The Hydraulic Power Transmission System that assembles is generally oil-proof, still, if more when scavenge oil pump, control valve, oil cylinder, motor or oil pipe ordinary couplings can not guarantee oil-proof; And cause hydraulic oil waste and working environment to pollute, bring very burden and waste to use.

Summary of the invention

For solving the technical problem of above-mentioned existence; The utility model provides a kind of anti-leak joint, and being connected of hydraulic element hydraulic fluid port and oil pipe when being applied in the Hydraulic Power Transmission System to change hydraulic element, dismounting fast and not can be revealed hydraulic oil; Avoid polluting the operational site, convenient and healthy.

For achieving the above object, the technological scheme that the utility model adopts is following:

A kind of anti-leak joint; Be bonded with each other by inner cone joint and outside cone joint and form; The inside of said inner cone joint and outside cone joint is respectively arranged with hollow projectile cartridge spring abutment, return spring and conehead spool; Return spring is sheathed on the conehead spool terminal shaft and is arranged on the hollow projectile cartridge spring abutment, and the outer periphery of outside cone joint is equipped with the attaching nut, and inner cone joint and outside cone joint end to be joined is respectively arranged with conical depression and corresponding tapered protrusion; The top of the conehead spool of two joints protrudes in described conical depression and tapered protrusion respectively, and outside cone joint inserts in the inner cone joint and closely cooperates during joint.

The arranged outside of the tapered protrusion of said outside cone joint has the O RunddichtringO.

The utility model is pegged graft by inner cone joint and outside cone joint and is formed; When connecting, the two passes through the attaching nut with the two tight connection; Move after two conehead spool top extruding and return spring is separately compressed, the taper hydraulic fluid port of two joints is opened and is formed path, leans on the 24o conical surface seal this moment between inner cone joint and the outside cone joint; O type circle seal ring between two conical surfaces has increased sealing together again, makes sealing more reliable; When inner cone joint and outside cone joint break off; Two conehead spools are outwards extruding under return spring elastic force effect separately, the taper hydraulic fluid port of two joints is compressed shut, and oil circuit is closed; Guarantee that fluid can not leak; Reduce the waste of fluid in the hydraulic transmission process and to the pollution of operational site, simple in structure, easy accessibility, quick when changing element.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation under two joint separated position among Fig. 1;

Fig. 3 is another embodiment's of the utility model a structural representation;

Fig. 4 is applied to connect the schematic representation of hydraulic oil pipe for the utility model;

Fig. 5 is applied to the schematic representation of control valve for the utility model;

Fig. 6 is applied to the schematic representation of hydralic pressure gauge for the utility model;

Fig. 7 is applied to the schematic representation of oil pump for the utility model;

Fig. 8 is applied to the schematic representation of oil cylinder for the utility model.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

Be illustrated in figure 1 as a specific embodiment of the utility model; Be bonded with each other by inner cone joint 1 and outside cone joint 2 and form; The inside of said inner cone joint 1 and outside cone joint 2 is respectively arranged with hollow projectile cartridge spring abutment 11, return spring 12 and conehead spool 13; Return spring 12 is sheathed on conehead spool 13 terminal shafts and is arranged on the hollow projectile cartridge spring abutment 11; The outer periphery of outside cone joint 2 is equipped with attaching nut 23, and inner cone joint 1 is respectively arranged with conical depression 14 and corresponding tapered protrusion 21 with outside cone joint 2 ends to be joined, and the arranged outside of the tapered protrusion 21 of outside cone joint 2 has O RunddichtringO 22; The top of the conehead spool 13 of two joints protrudes in described conical depression 14 and tapered protrusion 21 respectively, and outside cone joint 2 inserts in the inner cone joints 1 and closely cooperates during joint.

As 1 and shown in Figure 2, provided the utility model inner cone joint and be connected with outside cone joint and the structural representation that separates two states.

Under coupled condition; Outside cone joint 2 inserts in the inner cone joint 1; The attaching nut 23 of screwing closely links together the two, moves after the top extruding of two conehead spool 13 evaginations separately return spring 12 is compressed, and the taper hydraulic fluid port of two joints is opened and formed path.Lean on 24o conical surface seal between inner cone joint 1 and the outside cone joint 2 this moment, and the O type circle seal ring 22 between two conical surfaces has increased sealing together again, makes sealing more reliable.

Under off state, attaching nut 23 turns on, and inner cone joint 1, outside cone joint 2 separates, and two conehead spools 13 outwards push under return spring elastic force effect separately, the taper hydraulic fluid port of two joints is compressed shut, and oil circuit is closed, and fluid is not revealed.At this moment, the hydraulic fluid port conical surface and conehead spool 13 conical surface seals of outside cone joint 2 and inner cone joint 1, both conical surfaces make sealing more reliable through to grinding disposing, and assurance hydraulic oil can not revealed.When coupling nut 23 used, its roundlet position was through after extrusion process, on outside cone joint 2, can rotate but be not easy to drop out, for use provides convenience.

Shown in Figure 1 is flat anti-leak joint, that is to say that the two ends that the anti-leak joint is connected with hydraulic element design for flat.As another embodiment, also can the two ends that be connected with hydraulic element of anti-leak joint be designed to inner cone mouth formula, as shown in Figure 3, other structure functions are same as shown in Figure 1.

Fig. 4 has provided the utility model has been applied to the embodiment that hydraulic oil pipe connects.

As shown in Figure 4, need to connect two bundle hydraulic oil pipes, every bundle hydraulic oil pipe is 5, and on two oil pipes that needs connect, compiles corresponding number, avoids connection error.Connect inner cone joint 1 and outside cone joint 2 respectively at the two ends of every hydraulic oil pipe.The inner cone joint 1 that two oil pipes that will connect during connection are corresponding is connected with outside cone joint 2 and gets final product.Specifically describe above the operating process, do not do too much explanation here.

Shown in accompanying drawing 5-8; Provided respectively in changing control valve, hydralic pressure gauge, oil pump and four kinds of hydraulic pressure components and parts of oil cylinder process; Adopt the utility model to connect oil pipe, assurance hydraulic oil can not revealed, and avoids the pollution to working environment; Specific operation process is as described above, does not do too much explanation here.

Certainly; Above-mentioned explanation is not to be the restriction to the utility model; The utility model also be not limited in above-mentioned for example, variation, remodeling, interpolation or replacement that the technician in present technique field is made in the essential scope of the utility model also should belong to the protection domain of the utility model.

Claims

1. anti-leak joint; It is characterized in that; Be bonded with each other by inner cone joint (1) and outside cone joint (2) and form; The inside of said inner cone joint (1) and outside cone joint (2) is respectively arranged with hollow projectile cartridge spring abutment (11), return spring (12) and conehead spool (13); Return spring (12) is sheathed on conehead spool (13) terminal shaft and is arranged on the hollow projectile cartridge spring abutment (11), and the outer periphery of outside cone joint (2) is equipped with attaching nut (23), and inner cone joint (1) and outside cone joint (2) end to be joined are respectively arranged with conical depression (14) and corresponding tapered protrusion (21); The top of the conehead spool (13) of two joints protrudes in described conical depression (14) and tapered protrusion (21) respectively, and outside cone joint during joint (2) inserts in the inner cone joint (1) and closely cooperates.

2. anti-leak joint according to claim 1 is characterized in that, the arranged outside of the tapered protrusion (21) of said outside cone joint (2) has O RunddichtringO (22).