CN201703520U

CN201703520U - Anti-leakage device for assembly of oil pressure pipeline

Info

Publication number: CN201703520U
Application number: CN2010201796913U
Authority: CN
Inventors: 柯世清; 吴山琳
Original assignee: LEE CHI MACHINERY CO Ltd
Current assignee: LEE CHI MACHINERY CO Ltd; Lee Chi Enterprises Co Ltd
Priority date: 2010-05-04
Filing date: 2010-05-04
Publication date: 2011-01-12
Anticipated expiration: 2020-05-04

Abstract

The utility model relates to an anti-leakage device for the assembly of an oil pressure pipeline. The base of the oil pressure pipeline is provided with an inserting groove; the end of an oil pipe inserted into the inserting groove is inserted and combined with an inserting pipe fitting which is provided with a resisting ring at the protrusion of the external circumference close to an inner side and an embedding part at an end thereof; a leakage preventing piece is embedded at the embedding part and is tightly propped against an inner side and an inner wall of the inserting groove to generate multiple sealing and leakage preventing effects, so that the problems of difficult processing and poor sealing effect of the existing anti-leakage structure for the assembly of the oil pressure pipeline are effectively solved.

Description

Oil pipeline assembling leak-proof device

Technical field

The utility model relates to a kind of assembling joint construction that applies to brake oil pipelines such as bicycle or locomotive, particularly relates to a kind of in order to oil pipe and pedestal bonded assembly oil pipeline are assembled leak-proof device.

Background technology

Apply to the hydraulic braking system of bicycle at present, mainly include the brake crank that is incorporated into Handlebar of bicycle, the brake clamp that are installed on the wheel side are installed, and the hydraulic oil pipe that connects both, hydraulic oil pipe wherein is that hydraulic oil is directed to the brake clamp from brake crank, uses to drive brake clamp generation brake.

In order to solve the assembling bonded assembly driving fit connectivity problem of hydraulic oil pipe and brake crank or brake clamp, it is the disclosed bicycle hydraulic disc brake oil pipe of utility model patent (to call in the following text with reference to the case) bush structure of M310861 as Taiwan letter patent book number that relevant dealer proposes a kind of, it mainly is the apical ring part that is provided with horizontal projection in the end of the oil pipe lining that is plugged in oil pipe end, and be arranged with a circle circular groove in the periphery of apical ring part, allow the cast oil sealing can be placed on described circular groove, utilize cast oil sealed iris action, reach the effect of avoiding hydraulic oil to ooze out via the apical ring part outer rim of oil pipe lining.

Assemble leak free design with reference to the oil pipeline that case discloses, though can reach some effects of avoiding hydraulic oil to ooze out via the outer rim of oil pipe lining, its structure design is obviously perfect inadequately, is implementing to have following two shortcomings in the use at least:

1. must be arranged with a circle circular groove in the periphery of the apical ring part of oil pipe lining with reference to case, because the specification of oil pipe lining is quite little, process a circle circular groove in the periphery of superfine narrow apical ring part, machine-shaping is difficulty considerably, and the manufacturing cost height.

2. can only between internal perisporium, form Barrier structure in oil sealing with reference to case, sealing effectiveness deficiency not only, and as long as oil sealing has aging or distortion slightly, promptly leakage problems can take place, and influence the usefulness and the safety of brake system.

Summary of the invention

Be configured with about being difficult for problem and restrictions such as processing and sealing effectiveness deficiency for solving existing oil pipeline assembling leakproof, the purpose of this utility model is to provide a kind of oil pipeline assembling leak-proof device, it mainly is to form for the sheathed portion that is nested of leak-stopping spare in the end of grafting pipe fitting and between ring, machine-shaping step that not only need not be extra, and can allow leak-stopping spare can directly be resisted against the medial extremity and the internal perisporium of caulking groove, can produce multiple sealing leakage-proof effect, solve existing oil pipeline assembling leakproof and construct existing shortcoming and restriction.

The purpose of this utility model is to adopt following technical scheme to realize:

Oil pipeline assembling leak-proof device, comprise: a pedestal, its inside has a chamber and in the one-body molded spiro union portion that is provided with of connecting portion, is provided with opening caulking groove outwardly in described spiro union portion, in being a runner to be set be connected between described caulking groove and the described chamber; One oil pipe, it is to be arranged in described caulking groove with the end; One grafting pipe fitting, it is the end of being located in the described caulking groove and being plugged in described oil pipe; And a screw assembly, it is to be sheathed on described oil pipe and to be incorporated into described spiro union portion with screw thread; It is characterized in that: described grafting pipe fitting is in being provided with that a circle supports ring and forming the portion that is nested in the end of described grafting pipe fitting near protruding towards the outer peripheral face of described runner one end, be arranged with a leak-stopping spare in the described portion of being nested, described leak-stopping spare is that packing is resisted against the medial extremity of described caulking groove and the internal perisporium of described caulking groove.

Further, the technical solution of the utility model can also be:

Be provided with the terrace edge of a circle step shape in the medial extremity of caulking groove, described leak-stopping spare is that packing is resisted against described terrace edge.

The described internal diameter that supports the external diameter of ring less than described caulking groove, the external diameter of the described portion that is nested is less than the internal diameter of described terrace edge, and the external diameter of described leak-stopping spare is greater than the internal diameter of described caulking groove.

Described screw assembly is to comprise the swivel nut of an axial hollow and the barrel of an axial hollow, described swivel nut is to be incorporated into described spiro union portion and to be provided with the be spirally connected groove of an internal diameter less than described spiro union portion with screw thread, and described barrel is to be sheathed on described oil pipe and to be incorporated into the described groove that is spirally connected with screw thread.

An outside sheathed sheath of described oil pipe and screw assembly.

The oil pipeline assembling leak-proof device that the utility model proposed, the beneficial effect that can obtain comprises:

1. the utility model is directly in the end of grafting pipe fitting and support to reserve between the ring and form for the sheathed portion that is nested of leak-stopping spare, avoid to reprocess the problem of one circular groove effectively with reference to case, it is easy easily and advantage such as low cost of manufacture that the utility model possesses machine-shaping, has economic benefit.

2. grafting pipe fitting of the present utility model can allow leak-stopping spare be resisted against the terrace edge of caulking groove inner end positions and the internal perisporium of caulking groove simultaneously, can produce multiple sealing leakage-proof effect, effective solution is with reference to the existing sealing effectiveness deficiency of case and leakage problems may take place, dark tool Practical Benefit.

Description of drawings

Fig. 1 is the three-dimensional appearance scheme drawing of preferred embodiment of the present utility model.

Fig. 2 is the composition member decomposing schematic representation of preferred embodiment of the present utility model.

Fig. 3 is the assembled sectional view of preferred embodiment of the present utility model.

Fig. 4 is the local assembled sectional view that amplifies of preferred embodiment of the present utility model.

The specific embodiment

Following conjunction with figs. and preferred embodiment of the present utility model, further setting forth the utility model is to reach the technological means that predetermined utility model purpose is taked.

Oil pipeline assembling leak-proof device provided by the utility model can implement to apply to the assembling connecting portion of oil pipelines such as fluid pressure type Brake lever or fluid pressure type brake clamp, the utility model is not done specific restriction, preferred embodiment as shown in Figures 1 to 4 is the example that the utility model is arranged at the fluid pressure type Brake lever, it comprises: a pedestal 10, one oil pipe 20, one is plugged in the grafting pipe fitting 30 of oil pipe 20 coupling ends and embedding pedestal 10, one is sheathed on the exterior collar 40 of oil pipe 20 coupling ends, one pushing tow packing and 30 assemblings of oil pipe 20 and grafting pipe fitting are connected in the screw assembly 50 of pedestal 10, and one is sheathed on screw assembly 50 exterior sheaths 60; Wherein:

Extremely shown in Figure 4 as Fig. 2, pedestal 10 is provided with a fuel feeding and presses driven unit to install and the ccontaining chamber 11 of hydraulic oil in inside, and in the one-body molded spiro union portion 12 that is provided with of the connecting portion of pedestal 10, spiro union portion 12 can be for having externally threaded screwed pipe form as shown in Figure 2, also can be made as the flute profile formula that is spirally connected, as long as can be for screw assembly 50 with the screw thread combination with negative thread; Midway location in spiro union portion 12 is provided with opening caulking groove 13 outwardly, is connected between caulking groove 13 and the chamber 11 runner 14 being set, and convexes with the terrace edge 15 of a circle step shape in the interior Zhou Bi of the medial extremity of caulking groove 13;

The external diameter of oil pipe 20 roughly is consistent with the internal diameter of caulking groove 13;

Grafting pipe fitting 30 is provided with a circle to ring 31 in protruding near the outer peripheral face towards runner 14 1 ends to protrude outwardly, and grafting pipe fitting 30 is separated into that a pipe mask has multi-turn awl inclined-plane and but close-fitting is inserted in the inserting section 32 of oil pipe 20 ends, and one external diameter be slightly less than the portion that is nested 33 of terrace edge 15, and be embedded with the ring type leak-stopping spare 34 that an external diameter is slightly larger than caulking groove 13 internal diameters in the portion of being nested 33;

Collar 40 is tubular bodies made from tool flexible materials such as plastics, and is sheathed on the outer tube surface place of oil pipe 20 adjacent end;

Screw assembly 50 is to include the swivel nut 51 of an axial hollow and the barrel 52 of an axial hollow, and swivel nut 51 is provided with one and can be corresponding be incorporated into the spiro union portion 511 of spiro union portion 12 and the internal diameter groove 512 that is spirally connected less than spiro union portion 511 with screw thread; Barrel 52 to be being sheathed on the outside of oil pipe 20 near the close-fitting form, and is provided with one in outer tube surface and can be corresponding be incorporated into the section of being spirally connected 521 of the groove 512 that is spirally connected with screw thread, and in the inner peripheral surface formation one of barrel 52 can pushing tow packing collar 40 packing face 522;

Sheath 60 is sheath structures made from plastics or rubber material, and is sheathed on the outside of oil pipe 20 and screw assembly 50 accordingly, uses the assembling joint construction of protection oil pipeline, and the integraty of maintenance brake crank external form and attractive in appearance.

As Fig. 2 and shown in Figure 4, when the utility model connects in assembling, earlier sheath 60, screw assembly 50 and collar 40 are sheathed on oil pipe 20 in regular turn, and inserting section 32 close-fittings of grafting pipe fitting 30 are inserted in the end of oil pipe 20; Then the end with grafting pipe fitting 30 and oil pipe 20 aligns embedding caulking groove 13, and after a sealing member 53 is sheathed on spiro union portion 12, in regular turn swivel nut 51 is incorporated into spiro union portion 12 with screw thread, and barrel 52 is incorporated into swivel nut 51 with screw thread, can utilize the pushing and pressing and the packing effect of screw assembly 50, end and grafting pipe fitting 30 with oil pipe 20 is assembled in pedestal 10 effectively, and as shown in Figure 4, leak-stopping spare 34 is directly to be resisted against the terrace edge 15 of caulking groove 13 inner end surface positions and the internal perisporium of caulking groove 13, produce multiple sealing leakage-proof effect effectively, significantly promote the practical usefulness that the oil pipeline assembling links structure, dark tool Practical Benefit.

The above only is a preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in the scope that does not break away from technical solutions of the utility model, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1. oil pipeline is assembled leak-proof device, comprising:

One pedestal, its inside have a chamber and in the one-body molded spiro union portion that is provided with of connecting portion, are provided with opening caulking groove outwardly in described spiro union portion, in being a runner to be set be connected between described caulking groove and the described chamber;

One oil pipe, it is to be arranged in described caulking groove with the end;

One grafting pipe fitting, it is located in the described caulking groove and is plugged in the end of described oil pipe; And

One screw assembly, it is sheathed on described oil pipe and is incorporated into described spiro union portion with screw thread; It is characterized in that:

Described grafting pipe fitting is in being provided with that a circle supports ring and forming the portion that is nested in the end of described grafting pipe fitting near protruding towards the outer peripheral face of described runner one end, be arranged with a leak-stopping spare in the described portion of being nested, described leak-stopping spare is that packing is resisted against the medial extremity of described caulking groove and the internal perisporium of described caulking groove.

2. oil pipeline assembling leak-proof device according to claim 1, it is characterized in that: the medial extremity of described caulking groove is provided with the terrace edge of a circle step shape, and described leak-stopping spare is that packing is resisted against described terrace edge.

3. oil pipeline assembling leak-proof device according to claim 2 is characterized in that: the described internal diameter that supports the external diameter of ring less than described caulking groove, and the external diameter of the described portion that is nested is less than the internal diameter of described terrace edge, and the external diameter of described leak-stopping spare is greater than the internal diameter of described caulking groove.

4. oil pipeline assembling leak-proof device according to claim 3 is characterized in that: described grafting pipe fitting is to be provided with the pipe mask to have multi-turn awl inclined-plane and close-fitting to be inserted in the inserting section of described oil pipe.

5. oil pipeline assembling leak-proof device according to claim 1, it is characterized in that: described spiro union portion is to be made as the externally threaded screwed pipe form of tool.

6. according to each described oil pipeline assembling leak-proof device in the claim 1 to 5, it is characterized in that: in outside sheathed a branch of cover of described oil pipe, described collar is that packing is resisted against between described screw assembly and the described spiro union portion.

7. oil pipeline assembling leak-proof device according to claim 6, it is characterized in that: described screw assembly is to comprise the swivel nut of an axial hollow and the barrel of an axial hollow, described swivel nut is to be incorporated into described spiro union portion and to be provided with the be spirally connected groove of an internal diameter less than described spiro union portion with screw thread, and described barrel is to be sheathed on described oil pipe and to be incorporated into the described groove that is spirally connected with screw thread.

8. oil pipeline assembling leak-proof device according to claim 7 is characterized in that: in an outside sheathed sheath of described oil pipe and described screw assembly.