CN112081809A - Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof - Google Patents
Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof Download PDFInfo
- Publication number
- CN112081809A CN112081809A CN202010922416.4A CN202010922416A CN112081809A CN 112081809 A CN112081809 A CN 112081809A CN 202010922416 A CN202010922416 A CN 202010922416A CN 112081809 A CN112081809 A CN 112081809A
- Authority
- CN
- China
- Prior art keywords
- head
- groove
- bolt
- preparation
- poe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 title claims abstract description 8
- 229920006124 polyolefin elastomer Polymers 0.000 title abstract description 16
- 230000005540 biological transmission Effects 0.000 title description 6
- 238000005452 bending Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000243 solution 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a gearbox separation shifting fork supporting bolt with a POE (polyolefin elastomer) head part and a preparation method thereof, and the gearbox separation shifting fork supporting bolt comprises a bolt body, wherein a connecting threaded rod is arranged on the surface of one end of the bolt body, a wrapping head is arranged on the other end of the bolt body, a limiting connecting block is arranged on the other end of the wrapping head, a conical ring groove is arranged on the surface of the wrapping head, a through groove is arranged on the side surface of the conical ring groove, a positioning groove is arranged on the surface of one side of the through groove, an elastic head is fixedly wrapped on the surface of the wrapping head, a ball head is arranged at one end of the elastic head, the side surface of the elastic head is fixedly wrapped on the surface of the limiting connecting block, an annular bulge is formed at the other end of the elastic head, the surface of the annular bulge is fixedly filled on the side surface, the structural strength and the safety of use are ensured.
Description
Technical Field
The invention relates to the technical field of transmission shifting fork bolts, in particular to a transmission separating shifting fork support bolt with a POE (polyolefin elastomer) ball head part and a preparation method thereof.
Background
In a mechanism of a gearbox, components such as a gear and the like need to be driven by a shifting fork to perform clutch action, the shifting fork is often used for installing a support through a support bolt for facilitating installation and positioning, and an elastic material needs to be filled in the end head of the support bolt for avoiding the influence of abnormal noise and the like caused by mutual friction of metal parts.
However, in the existing shifting fork supporting bolt structure, the end of the bolt is mostly directly wrapped with the elastic body, so that the structure is not only stable in connection, but also easy to extrude and deform to cause the connecting port to be larger and fall off, and is not beneficial to integrated combination connection, thereby affecting the use safety, and a new structure is to be provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a transmission case separation shifting fork supporting bolt with a POE (polyolefin elastomer) ball head and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a transmission case separation shifting fork supporting bolt with a POE (polyolefin elastomer) ball head part and a preparation method thereof comprise a bolt body, a connecting threaded rod is arranged on the surface of one end of the bolt body, a wrapping head is arranged on the other end of the bolt body, the other end of the wrapping head is provided with a limit connecting block, the surface of the wrapping head is provided with a conical ring groove, a through groove is arranged on the side surface of the conical ring groove, a positioning groove is arranged on the surface of one side of the through groove, an elastic head is fixedly wrapped on the surface of the wrapping head, one end of the elastic head is provided with a ball head, the side surface of the elastic head is fixedly wrapped on the surface of the limit connecting block, the other end of the elastic head forms an annular bulge, the surface of the annular bulge is fixedly filled on the side surface of the conical ring groove, the side face of the annular bulge is provided with a filling strip, and the surface of the filling strip is fixedly filled on the side face of the through groove.
Preferably, the inside of packing strip is fixed and is inlayed and be had the aluminium-plastic strip, the both ends of aluminium-plastic strip all are equipped with the support head of buckling.
Preferably, the surface of the supporting bending head is fixedly embedded in the side surfaces of the two ends of the ring bulge, and the supporting bending head is connected to the surfaces of the two sides of the conical ring groove in a supporting manner.
Preferably, the surface of the other end of the connecting threaded rod is provided with a threaded counter bore, the bottom of the threaded counter bore is provided with a connecting through hole, and the other end of the connecting through hole is connected to the side face of the through groove in an aligned mode.
Preferably, the side surface of the threaded counter bore is in threaded connection with a positioning screw, and the other end of the positioning screw is fixedly connected with a circular rod.
Preferably, the other end of the circular rod is fixedly connected with a circular block, and the surface of the circular block is slidably connected with one end side surface of the connecting through hole.
Preferably, the preparation method comprises the following steps:
s1, turning one end of the bolt body to form a conical ring groove and a limiting connecting block;
s2, drilling a through groove on the surface of the conical ring groove, drilling a connecting through hole at the end of the connecting threaded rod, and protruding to the other side of the through groove to form a positioning groove;
s3, tapping the front end of the connecting through hole to form a threaded counter bore, and finishing the turning of the bolt body;
s4, inserting the aluminum-plastic strip into the through groove, and bending two ends of the aluminum-plastic strip to form a support bending head for positioning;
s5, connecting the positioning screw into the threaded counter bore in a threaded manner, and inserting the circular rod and the circular block into the connecting through hole for limiting;
s6, clamping the wrapping head into an injection mold, injecting a POE material into the injection mold through an injection molding machine under the conditions of 250-280 ℃ and 12-15 MPa, cooling and shaping to form an elastic head to wrap the wrapping head, forming an annular bulge to reach the inner part of the conical ring groove, forming a filling strip to fill the inner part of the through groove, and wrapping the aluminum-plastic strip;
s7, taking out the integrated bolt body by the demolding head, and naturally cooling;
and S8, rotating the top-level screw by the screw thread, pushing the circular rod and the circular block, extruding the filling strip and the aluminum-plastic strip into the positioning groove, and performing plastic positioning to complete the preparation of the bolt.
According to the gearbox separation shifting fork support bolt with the POE material ball head part and the preparation method thereof, the wrapping head is formed by turning one side of the bolt body, integrated processing can be achieved, the structural strength is guaranteed, then injection molding is carried out through mold wrapping, the mounting stability and tightness of the elastic head are improved, the filling strip is formed by combining the internal through groove, the positioning screw is mounted by combining the threaded counter bore at the other end, the elastic head can be pressed and positioned after forming, loosening and falling are avoided, the convenience and stability of integrated forming can be greatly improved, and the structural strength and safety in use are guaranteed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of an aluminum-plastic strip of the present invention;
fig. 3 is a schematic structural view of the set screw of the present invention.
In the figure: the bolt comprises a bolt body 1, a connecting threaded rod 11, a wrapping head 12, a limiting connecting block 13, a conical ring groove 14, a through groove 15, a positioning groove 16, an elastic head 17, a ball head 18, an annular bulge 2, a filling strip 21, an aluminum plastic strip 22, a supporting bending head 23, a threaded counter bore 24, a connecting through hole 25, a positioning screw 26, a circular rod 27 and a circular block 28.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Referring to fig. 1, 2 and 3, a gearbox release fork support bolt with a POE head and a manufacturing method thereof includes a bolt body 1, a connecting threaded rod 11 is disposed on one end surface of the bolt body 1, a wrapping head 12 is disposed on the other end of the bolt body 1, the bolt body is integrally turned and formed, structural strength and use safety are guaranteed, a limit connecting block 13 is disposed on the other end including the head 12, connecting area is increased, stability of wrapping connection is improved, a conical ring groove 14 is disposed on the surface of the wrapping head 12, a through groove 15 is disposed on a side surface of the conical ring groove 14, a positioning groove 16 is disposed on one side surface of the through groove 15, an elastic head 17 is fixedly wrapped on the surface of the wrapping head 12, a ball head 18 is disposed at one end of the elastic head 17, collision friction between the elastic head and the ball head is reduced, use safety and stability are guaranteed, the side surface of the, the other end of elastic head 17 forms annular arch 2, and annular arch 2's fixed surface fills in the side of toper annular 14, and annular arch 2's side is equipped with filler strip 21, can integration injection moulding, guarantees the compactness of connecting, improves structural stability, and filler strip 21's fixed surface fills in the side of leading to groove 15.
Preferably, an aluminum-plastic strip 22 is fixedly embedded inside the filling strip 21, and both ends of the aluminum-plastic strip 22 are provided with supporting bending heads 23.
Preferably, the surfaces of the supporting bending heads 23 are fixedly mounted on both side surfaces of the ring protrusion 2, and the supporting bending heads 23 are supported and connected to both side surfaces of the tapered ring groove 14.
Preferably, the other end surface of the connecting threaded rod 11 is provided with a threaded counterbore 24, the bottom of the threaded counterbore 24 is provided with a connecting through hole 25, and the other end of the connecting through hole 25 is connected to the side surface of the through groove 15 in an aligned manner.
Preferably, a set screw 26 is screwed to the side surface of the threaded counter bore 24, and a circular rod 27 is fixedly connected to the other end of the set screw 26.
Preferably, a circular block 28 is fixedly connected to the other end of the circular rod 27, and the surface of the circular block 28 is slidably connected to one end side surface of the connecting through hole 25.
Preferably, the preparation method comprises the following steps:
s1, turning one end of the bolt body to form a conical ring groove and a limiting connecting block;
s2, drilling a through groove on the surface of the conical ring groove, drilling a connecting through hole at the end of the connecting threaded rod, and protruding to the other side of the through groove to form a positioning groove;
s3, tapping the front end of the connecting through hole to form a threaded counter bore, and finishing the turning of the bolt body;
s4, inserting the aluminum-plastic strip into the through groove, and bending two ends of the aluminum-plastic strip to form a support bending head for positioning;
s5, connecting the positioning screw into the threaded counter bore in a threaded manner, and inserting the circular rod and the circular block into the connecting through hole for limiting;
s6, clamping the wrapping head into an injection mold, injecting a POE material into the injection mold through an injection molding machine under the conditions of 250-280 ℃ and 12-15 MPa, cooling and shaping to form an elastic head to wrap the wrapping head, forming an annular bulge to reach the inner part of the conical ring groove, forming a filling strip to fill the inner part of the through groove, and wrapping the aluminum-plastic strip;
s7, taking out the integrated bolt body by the demolding head, and naturally cooling;
and S8, rotating the top-level screw by the screw thread, pushing the circular rod and the circular block, extruding the filling strip and the aluminum-plastic strip into the positioning groove, and performing plastic positioning to complete the preparation of the bolt.
Claims (7)
1. The utility model provides a gearbox separation shift fork supporting bolt and preparation method thereof that bulb portion is POE material, includes bolt body (1), its characterized in that: the utility model discloses a bolt, including bolt body (1), the one end surface of bolt body (1) is equipped with connecting threaded rod (11), the other end of bolt body (1) is equipped with parcel head (12), the other end including head (12) is equipped with limit connection block (13), the surface of parcel head (12) is equipped with toper annular (14), the side of toper annular (14) is equipped with logical groove (15), a side surface that leads to groove (15) is equipped with positioning groove (16), the fixed surface of parcel head (12) wraps up flexible head (17), the one end of flexible head (17) is equipped with bulb (18), the fixed surface of wrapping up in limit connection block (13) in side of flexible head (17), the other end of flexible head (17) forms annular arch (2), the fixed surface of annular arch (2) is filled in the side of toper annular (14), the side of annular arch (2) is equipped with packing strip (21), the surface of the filling strip (21) is fixedly filled on the side surface of the through groove (15).
2. The gearbox release fork support bolt with the POE ball head part and the preparation method thereof according to claim 1 are characterized in that: the inside of packing strip (21) is fixed to be inlayed and is had plastic-aluminum strip (22), the both ends of plastic-aluminum strip (22) all are equipped with support bending head (23).
3. The gearbox release fork support bolt with the POE ball head part and the preparation method of the gearbox release fork support bolt are characterized in that: the surface of the supporting bending head (23) is fixedly embedded in the side faces of two ends of the ring bulge (2), and the supporting bending head (23) is connected to the surfaces of two sides of the conical ring groove (14) in a supporting mode.
4. The gearbox release fork support bolt with the POE ball head part and the preparation method thereof according to claim 1 are characterized in that: the connecting screw rod is characterized in that a thread counter bore (24) is formed in the surface of the other end of the connecting screw rod (11), a connecting through hole (25) is formed in the bottom of the thread counter bore (24), and the other end of the connecting through hole (25) is connected to the side face of the through groove (15) in an opposite position mode.
5. The gearbox release fork support bolt with the POE ball head part and the preparation method of the gearbox release fork support bolt are characterized in that: the side surface of the threaded counter bore (24) is in threaded connection with a positioning screw (26), and the other end of the positioning screw (26) is fixedly connected with a circular rod (27).
6. The gearbox release fork support bolt with the POE ball head part and the preparation method of the gearbox release fork support bolt are characterized in that: the other end of the round rod (27) is fixedly connected with a round block (28), and the surface of the round block (28) is connected with the side surface of one end of the connecting through hole (25) in a sliding mode.
7. The gearbox release fork support bolt with the POE ball head part and the preparation method thereof according to claim 1 are characterized in that: the preparation method comprises the following steps:
s1, turning one end of the bolt body to form a conical ring groove and a limiting connecting block;
s2, drilling a through groove on the surface of the conical ring groove, drilling a connecting through hole at the end of the connecting threaded rod, and protruding to the other side of the through groove to form a positioning groove;
s3, tapping the front end of the connecting through hole to form a threaded counter bore, and finishing the turning of the bolt body;
s4, inserting the aluminum-plastic strip into the through groove, and bending two ends of the aluminum-plastic strip to form a support bending head for positioning;
s5, connecting the positioning screw into the threaded counter bore in a threaded manner, and inserting the circular rod and the circular block into the connecting through hole for limiting;
s6, clamping the wrapping head into an injection mold, injecting a POE material into the injection mold through an injection molding machine under the conditions of 250-280 ℃ and 12-15 MPa, cooling and shaping to form an elastic head to wrap the wrapping head, forming an annular bulge to reach the inner part of the conical ring groove, forming a filling strip to fill the inner part of the through groove, and wrapping the aluminum-plastic strip;
s7, taking out the integrated bolt body by the demolding head, and naturally cooling;
and S8, rotating the top-level screw by the screw thread, pushing the circular rod and the circular block, extruding the filling strip and the aluminum-plastic strip into the positioning groove, and performing plastic positioning to complete the preparation of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922416.4A CN112081809A (en) | 2020-09-04 | 2020-09-04 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922416.4A CN112081809A (en) | 2020-09-04 | 2020-09-04 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112081809A true CN112081809A (en) | 2020-12-15 |
Family
ID=73732475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010922416.4A Pending CN112081809A (en) | 2020-09-04 | 2020-09-04 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112081809A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10103543A1 (en) * | 2001-01-26 | 2002-08-14 | Festo Ag & Co | Screw has injection molded plastic or die cast zinc head |
| US20080019795A1 (en) * | 2006-07-18 | 2008-01-24 | Skf Usa Inc. | Composite drain plug |
| CN101249329A (en) * | 2008-03-21 | 2008-08-27 | 朱兴源 | High-reliability dissepiment strainer plate and production method thereof |
| CN102588839A (en) * | 2012-02-16 | 2012-07-18 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device adopting same |
| CN202867483U (en) * | 2012-11-08 | 2013-04-10 | 杜德机械科技(上海)有限公司 | Bolt provided with pretightening force detecting mat |
| CN204828427U (en) * | 2015-07-14 | 2015-12-02 | 宁国市正道橡塑零部件有限公司 | Shock attenuation sealing bolt for car |
| CN205244082U (en) * | 2015-12-17 | 2016-05-18 | 镇江经纬输送科技有限公司 | Plastics baotou fastening bolt |
| CN107939804A (en) * | 2018-01-02 | 2018-04-20 | 福建泉州市金正机械有限公司 | A kind of double rod bolt |
| CN110332205A (en) * | 2019-07-20 | 2019-10-15 | 张丽丽 | A kind of stable type check bolt |
| CN111255788A (en) * | 2020-01-16 | 2020-06-09 | 芜湖强振汽车紧固件有限公司 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
-
2020
- 2020-09-04 CN CN202010922416.4A patent/CN112081809A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10103543A1 (en) * | 2001-01-26 | 2002-08-14 | Festo Ag & Co | Screw has injection molded plastic or die cast zinc head |
| US20080019795A1 (en) * | 2006-07-18 | 2008-01-24 | Skf Usa Inc. | Composite drain plug |
| CN101249329A (en) * | 2008-03-21 | 2008-08-27 | 朱兴源 | High-reliability dissepiment strainer plate and production method thereof |
| CN102588839A (en) * | 2012-02-16 | 2012-07-18 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device adopting same |
| CN202867483U (en) * | 2012-11-08 | 2013-04-10 | 杜德机械科技(上海)有限公司 | Bolt provided with pretightening force detecting mat |
| CN204828427U (en) * | 2015-07-14 | 2015-12-02 | 宁国市正道橡塑零部件有限公司 | Shock attenuation sealing bolt for car |
| CN205244082U (en) * | 2015-12-17 | 2016-05-18 | 镇江经纬输送科技有限公司 | Plastics baotou fastening bolt |
| CN107939804A (en) * | 2018-01-02 | 2018-04-20 | 福建泉州市金正机械有限公司 | A kind of double rod bolt |
| CN110332205A (en) * | 2019-07-20 | 2019-10-15 | 张丽丽 | A kind of stable type check bolt |
| CN111255788A (en) * | 2020-01-16 | 2020-06-09 | 芜湖强振汽车紧固件有限公司 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙刚: "注塑温度对聚丙烯材料微观结构和力学性能的影响", 《合成材料老化与应用》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203796708U (en) | Bolt and bolt connection component | |
| CN111927338B (en) | High-pressure manifold telescopic short joint | |
| CN210343995U (en) | Extrusion self-sealing bolt | |
| KR100670554B1 (en) | High strengthen plastic pipe and manufacturing method of the same | |
| CN112081809A (en) | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof | |
| CN103568206B (en) | A kind of preformed axle support connection device | |
| CN214926754U (en) | Improved die ejector pin | |
| CN208277317U (en) | A kind of in-molded auxiliary feeding device | |
| CN220015790U (en) | Injection-free square head limit bolt | |
| CN201407435Y (en) | Pipeline connection structure | |
| CN207921089U (en) | The crowded expanding swivel nut of cavity proximate matter | |
| CN211492706U (en) | Extrusion structure for injection molding machine | |
| CN220480477U (en) | Thread repairing device | |
| CN220163116U (en) | Injection mold convenient to clearance feed inlet | |
| CN221278223U (en) | Petroleum hydraulic insert | |
| CN220862624U (en) | Crankshaft die structure with optimal design | |
| CN221121409U (en) | External thread copper insert | |
| CN109538614B (en) | Non-metal insert locknut | |
| CN220060664U (en) | One-way valve assembly for oil-gas separation of automobile engine | |
| CN211251131U (en) | Shaft sleeve die | |
| CN106594041A (en) | Waterproof and anti-rotation tail door hinge and riveting method | |
| CN216200472U (en) | Metal part assembling and sealing structure | |
| CN217926866U (en) | Ball screw pair anti-rotation structure for line control | |
| CN220314971U (en) | Vacuum cylinder assembly for fiber reinforced engineering plastic molding vehicle | |
| CN220721185U (en) | Structure-improved steering tie rod for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201215 |