CN110714998A - Reciprocating type non-sealing piston hydraulic brake capable of preventing hydraulic abrasion into seam - Google Patents
Reciprocating type non-sealing piston hydraulic brake capable of preventing hydraulic abrasion into seam Download PDFInfo
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- CN110714998A CN110714998A CN201910992928.5A CN201910992928A CN110714998A CN 110714998 A CN110714998 A CN 110714998A CN 201910992928 A CN201910992928 A CN 201910992928A CN 110714998 A CN110714998 A CN 110714998A
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- 238000007789 sealing Methods 0.000 title abstract description 10
- 238000005299 abrasion Methods 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 230000000979 retarding effect Effects 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 101100457407 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) mmm-1 gene Proteins 0.000 claims 3
- 206010040007 Sense of oppression Diseases 0.000 claims 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 101150061721 mmm1 gene Proteins 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/007—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with variable brake geometry, e.g. axially movable rotor or stator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/005—Details of blades, e.g. shape
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a hydraulic brake for preventing liquid from being rubbed into a seam by a reciprocating type non-sealing piston, which structurally comprises an outer clamping shell, a liquid injection end and a hydraulic retarding end, wherein the liquid injection end is arranged on the outer surface of the outer clamping shell, liquid collided by a rotor can be clamped into the seam between the rotor and an outer pocket shell in the running process of the rotor, an auxiliary resisting angle of the rotor can firstly collide with the outer pocket shell to assist in isolating the expansion force, so that the rotor can expand better later, a resisting layer is always in an expanded state, if the liquid is continuously clamped inwards, the side support of a main expanding inner layer can perform the first-step collision on the liquid, the rubber supporting arc can stably resist the main expanding inner layer according to the force borne by the outside, the liquid can be in an outer expanding state when the collided part is subjected to extrusion force, so that the liquid is difficult to be extruded, and the liquid can be extruded while being extruded, when the internal stator and the rotor run through liquid, the liquid is prevented from being clamped between the gaps to influence the rotating speed of the rotor.
Description
Technical Field
The invention belongs to the field of hydraulic equipment, and particularly relates to a reciprocating type hydraulic brake with a non-sealing piston for preventing hydraulic wear into a seam.
Background
When the piston hydraulic brake without the sealing ring is operated, a retarding effect is generated through a hydraulic retarder, and a certain braking force is generated by the internal stator through resistance generated by injecting liquid into the rotor.
Based on the above findings, the present inventors found that the conventional reciprocating sealless piston hydraulic brake mainly has the following disadvantages, for example:
when liquid is placed into the rotor, the rotor starts to operate in a certain direction, and due to the fact that the rotor is isolated without a sealing ring, the liquid is ground into a gap little by little in the operation process of the rotor, the subsequent rotating speed of the rotor is easily influenced, and even the rotor slips excessively.
It is therefore desirable to provide a reciprocating, seal-less piston hydraulic brake that prevents fluid from wearing into the seam.
Disclosure of Invention
In order to solve the problem that when liquid is placed into the rotor, the rotor of the rotor starts to operate in a certain direction, and the rotor is isolated without a sealing ring, so that the liquid is ground into a gap little by little in the operation process of the rotor, the subsequent rotating speed of the rotor is easily influenced, and even the rotor slips excessively.
The invention discloses a hydraulic brake with a reciprocating non-sealing piston for preventing liquid from being worn into a seam, which has the purpose and the effect and is achieved by the following specific technical means:
the structure of the device comprises an outer clamping shell, a liquid injection end, a hydraulic retarding end and a connecting rotating head.
The liquid injection end is installed on the outer surface of the outer clamping shell, and the connection head is embedded into the hydraulic retarding end.
The hydraulic pressure is slowed down the end and is included rotor, stator, outer pocket casing, interior liquid layer, link up the mouth, the rotor offsets with the stator, interior liquid layer embedding is inside outer pocket casing, link up the mouth and be connected with the rotor, the rotor is installed inside outer pocket casing.
As a further improvement of the invention, the inner liquid resisting layer comprises a main expansion inner layer, auxiliary resisting angles, a compression expansion core, inner resisting supporting arcs and side glue angles, the compression expansion core is resisted on the upper surface of the main expansion inner layer, one end, far away from the main expansion inner layer, of the compression expansion core is connected with the inner resisting supporting arcs, the auxiliary resisting angles are attached to the outer surface of the main expansion inner layer, the side glue angles are installed at one end, far away from the auxiliary resisting angles, of the main expansion inner layer, five compression expansion cores are arranged, two auxiliary resisting angles are arranged, and the inner resisting supporting arcs are of a semi-arc structure.
As a further improvement of the invention, the main expansion inner layer comprises a hard fixed core, a middle support block, a curved elastic strip and side support guards, wherein the hard fixed core is abutted against the outer surface of the curved elastic strip, the curved elastic strip is connected with the side support guards, one end of the curved elastic strip, which is far away from the side support guards, is connected with the middle support block, ten hard fixed cores are arranged, five hard fixed cores are arranged into a group, and the number of the curved elastic strips is two.
As a further improvement of the invention, the compression expansion core comprises a middle marble, an inner clamping small core, an outer angle expansion rod, an angle expansion angle, a rubber support arc and a middle fixing ball, wherein the middle fixing ball is embedded in the middle marble and is positioned on the same axis, the inner clamping small core is abutted against the inner surface of the outer angle expansion rod, the angle expansion angle is arranged on the outer surface of the outer angle expansion rod and is embedded in the rubber support arc, the number of the outer angle expansion rods is four, the middle fixing ball is of a spherical structure, the number of the rubber support arc is two, and the inner clamping small core is of a semi-arc structure.
As a further improvement of the invention, the hard fixing core comprises three resisting bodies, an outer expanding support layer and a tightening arc, wherein the resisting bodies are embedded in the outer expanding support layer, the outer expanding support layer is connected with the tightening arc, and the tightening arc is in a semi-arc structure.
As a further improvement of the invention, the auxiliary supporting angle comprises a supporting layer, an auxiliary expanding bag and six external scattering support rods, wherein the auxiliary expanding bag is embedded in the supporting layer, the external surface of the supporting layer is abutted with the external scattering support rods, the auxiliary expanding bag is of a spherical structure, and the number of the external scattering support rods is six.
Compared with the prior art, the invention has the following beneficial effects:
the liquid collided by the rotor is clamped into a gap between the rotor and the outer bag shell in the running process, the auxiliary supporting angle can firstly support and assist to isolate the expansion force, so that the supporting layer can be expanded better in the following process, if liquid is continuously clamped inwards, the side support of the main expansion inner layer can perform the first step of conflict on the main expansion inner layer, and the uniform and rapid inward implementation can be realized according to the force born by the outside, when the deep layer is extruded, wherein the fixed ball will support the external angle-expanding rod, so that the rubber supporting arc can firmly support the main expansion inner layer, and can be in an external expansion state when the supported part is subjected to extrusion force, so that the liquid is difficult to extrude into the fixed ball, and when the inner stator and the rotor run through liquid, the liquid is prevented from being clamped between the gaps to influence the rotating speed of the inner stator and the rotor.
Drawings
FIG. 1 is a schematic structural diagram of a hydraulic brake for preventing a reciprocating type non-sealing piston from being hydraulically worn into a seam.
Fig. 2 is a schematic front view of an internal structure of a hydraulic retarding end according to the present invention.
Fig. 3 is a schematic front view of an internal liquid-repellent layer according to the present invention.
FIG. 4 is a front view of the internal structure of a primary intumescent inner layer of the invention.
FIG. 5 is a schematic view of the front view of the inner structure of the pressurized puffing core of the present invention.
Fig. 6 is a schematic front view of the internal structure of a hard core according to the present invention.
FIG. 7 is a schematic view of an elevation view of an internal structure of an auxiliary supporting angle according to the present invention.
In the figure: an outer card shell-aa 1, a liquid injection end-aa 2, a hydraulic retarding end-aa 3, a joint-aa 4, a rotor-tt 01, a stator-tt 02, an outer pocket shell-tt 03, an inner liquid resisting layer-tt 04, a joint-tt 05, a main expansion inner layer-qwe 1, an auxiliary resisting angle-qwe 1, a compression expansion core-qwe 1, an inner supporting arc-qwe 1, a side rubber angle-qwe 1, a hard fixed core-mmm qwe1, a middle supporting block-mmm qwe1, a curved elastic strip-mmm qwe1, a side supporting protection-mmm qwe1, a middle elastic ball-gg qwe1, an inner card small core-gg qwe1, an outer expansion angle rod-gg qwe1, a large angle-gg qwe1, a rubber supporting arc-gg qwe1, a middle fixed ball-gg qwe1, a solid-zxc qwe1, an outer supporting layer-zxc-qwe 1, a back expansion layer-zas-qwe 1, an auxiliary expansion rod-qwe 1, and an auxiliary expansion rod-qwe 1.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in figures 1 to 7:
the invention provides a reciprocating type hydraulic brake without a sealing piston for preventing liquid from being worn into a seam, which structurally comprises an outer clamping shell aa1, a liquid injection end aa2, a hydraulic retarding end aa3 and a joint head aa 4.
The liquid injection end aa2 is mounted on the outer surface of the outer clamping shell aa1, and the adaptor aa4 is embedded in the hydraulic retarding end aa 3.
The hydraulic retarding end aa3 comprises a rotor tt01, a stator tt02, an outer pocket shell tt03, an inner liquid resisting layer tt04 and a joint tt05, wherein the rotor tt01 abuts against the stator tt02, the inner liquid resisting layer tt04 is embedded inside the outer pocket shell tt03, the joint tt05 is connected with the rotor tt01, and the rotor tt01 is installed inside the outer pocket shell tt 03.
The inner liquid-resisting layer tt04 comprises a main expansion inner layer qwe1, auxiliary support angles qwe2, a compression expansion core qwe3, inner support arcs qwe4 and side glue angles qwe5, the upper surface of the main expansion inner layer qwe1 is supported by the compression expansion core qwe3, one end, far away from the main expansion inner layer qwe1, of the compression expansion core qwe3 is connected with the inner support arcs qwe4, the auxiliary support angles qwe2 are attached to the outer surface of the main expansion inner layer qwe1, one end, far away from the auxiliary support angles qwe2, of the main expansion inner layer qwe1 is provided with the side glue angles qwe5, five compression expansion cores qwe3 are arranged, the auxiliary support angles qwe2 are two, the inner support arcs qwe4 are of a semi-arc structure, the inner support arcs qwe4 support most of the stressed contact points, so that the main expansion inner layer qwe1 has a certain stressed end as a whole, when the pressed parts are pressed, the main expansion inner layer qwe1 is in an outer expansion state, the auxiliary support angles qwe2 support continuous expansion force, and the rear expansion end qwe5 of the side glue can be better, isolating it.
The main expansion inner layer qwe1 comprises a hard solid core mmm1, a middle support block mmm2, a curved elastic strip mmm3 and a side support protection mmm4, the hard solid core mmm1 abuts against the outer surface of a curved elastic strip mmm3, the curved elastic strips mmm3 are connected with the side support protection mmm4, one end, far away from the side support protection mmm4, of each curved elastic strip mmm3 is connected with the middle support block mmm2, ten and five hard solid cores mmm1 form one group, two curved elastic strips mmm3 are arranged, if the curved elastic strips mmm3 are squeezed, the curved elastic strips can be in a counter force state and rebound, the hard solid cores mmm1 abut against the joint positions to give certain hard force to the hard solid cores, and the side support protection mmm4 can be uniformly and quickly implemented inwards according to the force born by the outside.
The pressing expansion core qwe3 comprises a middle elastic ball gg1, an inner clamping small core gg2, an outer angle expansion rod gg3, an extending angle gg4, a rubber support arc gg5 and a middle fixing ball gg6, the middle fixing ball gg6 is embedded into the middle elastic ball gg1 and located on the same axis, the inner clamping small core gg2 abuts against the inner surface of the outer angle expansion rod gg3, the outer surface of the outer angle expansion rod gg3 is provided with the extending angle gg4, the extending angle gg4 is embedded into the rubber support arc gg5, the number of the outer angle expansion rods gg3 is four, the middle fixing ball gg6 is of a spherical structure, the number of the rubber support arcs gg5 is two, the inner clamping small core gg2 is of a semi-arc structure, the middle fixing ball gg6 controls the overall approximate movable position, the outer angle expansion rod is prevented from excessively swinging, the outer angle expansion rod gg5 is distributed in a semi-arc structure, and the four swinging support rods 5 can uniformly absorb the force.
The hard core mmm1 comprises a solid resisting layer zxc1, an outer expanding support layer zxc2 and a back stretching arc zxc3, wherein the solid resisting layer zxc1 is embedded in the outer expanding support layer zxc2, the outer expanding support layer zxc2 is connected with the back stretching arc zxc3, the number of the solid resisting layers zxc1 is three, the back stretching arc zxc3 is of a semi-arc structure, the solid resisting layer zxc1 gives a certain resilience to the whole body, the outer expanding support layer zxc2 carries out certain counter force support according to deformation required by the generation borne by the outside, and the back stretching arc zxc3 assists a force bearing end to carry out certain counter force support.
The auxiliary supporting angle qwe2 includes a supporting layer as01, an auxiliary expanding bag as02, and an outer supporting rod as03, the auxiliary expanding bag as02 is embedded inside the supporting layer as01, the outer surface of the supporting layer as01 is abutted with the outer supporting rod as03, the auxiliary expanding bag as02 is of a spherical structure, six outer supporting rods as03 are provided, the outer supporting rod as03 mainly supports the spacing distance of the joint part, the supporting layer as01 can be abutted against the most part of force, the auxiliary expanding bag as02 gives a certain supporting force to the joint part, and the protective and buffering effects can be achieved when the auxiliary expanding bag is squeezed.
The specific use mode and function of the embodiment are as follows:
in the invention, when the liquid injection end aa2 is connected with the liquid injection port, liquid is injected into the outer pocket shell tt03, the stator tt02 and the rotor tt01 start to operate under the action of the liquid, the liquid abutted by the rotor tt01 is clamped into a gap between the stator tt02 and the outer pocket shell tt03 in the operation process, the auxiliary abutting angle qwe2 firstly abuts against the rotor tt01, the abutting layer as01 is driven by the abutting force of the outer support rod as03 to carry out the first abutting isolation on the liquid abraded into the gap, the abutting layer as01 is assisted by the auxiliary expansion bag as02 to ensure that the abutting layer as01 is always in an expanded state, if the liquid is continuously clamped inwards, the side support mmm4 of the main expansion inner layer qwe1 can abut against the main expansion inner layer, if the liquid is continuously pushed inwards, the elastic strip is subjected to the hard back supporting force mmm 638 through the hard back supporting arc 686c of the hard back supporting core 3, the side support mmm4 is kept unchanged, when the angle expanding rod is deeply extruded, the fixed ball gg6 supports the outer angle expanding rod gg3, the rubber support arc gg5 stably supports the main expanding inner layer qwe1, when the outer angle expanding rod gg3 swings to some extent, the small inner clamping core gg2 connected between the fixed ball gg6 and the outer angle expanding rod gg3 can timely drag the small inner clamping core gg2 to return to the position, liquid of the small inner clamping core gg is difficult to extrude into the small clamping core, and the small clamping core gg is extruded out while the small clamping core is extruded into the position.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (6)
1. Reciprocating type does not have hydraulic brake in sealed piston liquid-proof wearing seam, its structure includes outer card shell (aa 1), annotates liquid end (aa 2), hydraulic pressure slow speed end (aa 3), links up swivel head (aa 4), its characterized in that:
the liquid injection end (aa 2) is mounted on the outer surface of the outer clamping shell (aa 1), and the armature head (aa 4) is embedded inside the hydraulic retarding end (aa 3);
the hydraulic retarding end (aa 3) comprises a rotor (tt 01), a stator (tt 02), an outer pocket shell (tt 03), an inner liquid resisting layer (tt 04) and a holding port (tt 05), wherein the rotor (tt 01) is abutted to the stator (tt 02), the inner liquid resisting layer (tt 04) is embedded into the outer pocket shell (tt 03), the holding port (tt 05) is connected with the rotor (tt 01), and the rotor (tt 01) is installed inside the outer pocket shell (tt 03).
2. The reciprocating sealless piston fluid-resistant mid-gap hydraulic brake of claim 1, wherein: interior liquid support layer (tt 04) include main expand inlayer (qwe 1), assist angle of support (qwe 2), oppression expand core (qwe 3), interior support arc (qwe 4), side glue angle (qwe 5), main expand inlayer (qwe 1) upper surface has supported oppression expand core (qwe 3), the one end that main expand inlayer (qwe 1) was kept away from in oppression expand core (qwe 3) is connected with interior support arc (qwe 4), assist angle of support (qwe 2) laminating in main expand inlayer (qwe 1) surface, main expand inlayer (qwe 1) keep away from the one end of assisting angle of support (qwe 2) and install side glue angle (qwe 5).
3. The reciprocating sealless piston fluid-resistant mid-gap hydraulic brake of claim 2, wherein: the main expansion inner layer (qwe 1) comprises a hard solid core (mmm 1), a middle support block (mmm 2), a curved elastic strip (mmm 3) and a side support guard (mmm 4), wherein the hard solid core (mmm 1) abuts against the outer surface of the curved elastic strip (mmm 3), the curved elastic strip (mmm 3) is connected with the side support guard (mmm 4), and one end, far away from the side support guard (mmm 4), of the curved elastic strip (mmm 3) is connected with the middle support block (mmm 2).
4. The reciprocating sealless piston fluid-resistant mid-gap hydraulic brake of claim 2, wherein: the pressing expansion core (qwe 3) comprises a middle bouncing ball (gg 1), an inner clamping small core (gg 2), an outer angle expanding rod (gg 3), an extending angle (gg 4), a rubber support arc (gg 5) and a middle fixing ball (gg 6), the middle fixing ball (gg 6) is embedded into the middle bouncing ball (gg 1) and located on the same axial center, the inner clamping small core (gg 2) abuts against the inner surface of the outer angle expanding rod (gg 3), the outer surface of the outer angle expanding rod (gg 3) is provided with the extending angle (gg 4), and the extending angle (gg 4) is embedded into the rubber support arc (gg 5).
5. The reciprocating sealless piston fluid-resistant mid-gap hydraulic brake of claim 3, wherein: the hard-fixed core (mmm 1) comprises a solid resisting body (zxc 1), an outer expanding layer (zxc 2) and a back stretching arc (zxc 3), wherein the solid resisting body (zxc 1) is embedded in the outer expanding layer (zxc 2), and the outer expanding layer (zxc 2) is connected with the back stretching arc (zxc 3).
6. The reciprocating sealless piston fluid-resistant mid-gap hydraulic brake of claim 2, wherein: the auxiliary supporting angle (qwe 2) comprises a supporting layer (as 01), an auxiliary expanding bag (as 02) and an outer scattered supporting rod (as 03), wherein the auxiliary expanding bag (as 02) is embedded inside the supporting layer (as 01), and the outer surface of the supporting layer (as 01) is abutted with the outer scattered supporting rod (as 03).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910992928.5A CN110714998B (en) | 2019-10-18 | 2019-10-18 | Reciprocating type non-sealing piston hydraulic brake capable of preventing hydraulic abrasion into seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910992928.5A CN110714998B (en) | 2019-10-18 | 2019-10-18 | Reciprocating type non-sealing piston hydraulic brake capable of preventing hydraulic abrasion into seam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110714998A true CN110714998A (en) | 2020-01-21 |
| CN110714998B CN110714998B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910992928.5A Active CN110714998B (en) | 2019-10-18 | 2019-10-18 | Reciprocating type non-sealing piston hydraulic brake capable of preventing hydraulic abrasion into seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110714998B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429917A1 (en) * | 1978-06-26 | 1980-01-25 | Citroen Sa | Hydraulic actuator for vehicle brake - has piston with bearing ring which permits limited axial travel and retains grip on piston over wide range of temperature |
| US5984057A (en) * | 1996-09-04 | 1999-11-16 | Kinetrol Limited | Rotary dampers |
| JP2000283190A (en) * | 1999-03-26 | 2000-10-13 | Nissin Kogyo Co Ltd | Piston opposed type caliper body of disc brake for hydraulic pressure type vehicle |
| CN1538086A (en) * | 2003-04-16 | 2004-10-20 | 日信工业株式会社 | Piston seal component and disk brake using the piston seal component |
-
2019
- 2019-10-18 CN CN201910992928.5A patent/CN110714998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429917A1 (en) * | 1978-06-26 | 1980-01-25 | Citroen Sa | Hydraulic actuator for vehicle brake - has piston with bearing ring which permits limited axial travel and retains grip on piston over wide range of temperature |
| US5984057A (en) * | 1996-09-04 | 1999-11-16 | Kinetrol Limited | Rotary dampers |
| JP2000283190A (en) * | 1999-03-26 | 2000-10-13 | Nissin Kogyo Co Ltd | Piston opposed type caliper body of disc brake for hydraulic pressure type vehicle |
| CN1538086A (en) * | 2003-04-16 | 2004-10-20 | 日信工业株式会社 | Piston seal component and disk brake using the piston seal component |
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| Publication number | Publication date |
|---|---|
| CN110714998B (en) | 2020-12-08 |
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Effective date of registration: 20211217 Address after: 265701 south of Longhua station, provincial road 264, Yanwei highway, Xinjia street, Longkou City, Yantai City, Shandong Province Patentee after: LONGKOU DACHUAN PISTON Co.,Ltd. Address before: 362000 e-commerce Park jq394, Qianyuan village, Luoyang Town, Taiwan investment zone, Quanzhou City, Fujian Province Patentee before: Quanzhou Taishang investment zone haiyada New Material Co.,Ltd. |
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Effective date of registration: 20240403 Address after: 265700 South side of Longhua Station on Provincial Highway 264, Yanwei Road, Xinjia Street, Longkou City, Yantai City, Shandong Province Patentee after: Shandong Dachuan Automotive Parts Co.,Ltd. Country or region after: China Address before: 265701 south of Longhua station, provincial road 264, Yanwei highway, Xinjia street, Longkou City, Yantai City, Shandong Province Patentee before: LONGKOU DACHUAN PISTON Co.,Ltd. Country or region before: China |
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