CN109356920B - Threaded connection device convenient to operate, connection structure and pre-tightening method of threaded connection device - Google Patents
Threaded connection device convenient to operate, connection structure and pre-tightening method of threaded connection device Download PDFInfo
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- CN109356920B CN109356920B CN201811287724.3A CN201811287724A CN109356920B CN 109356920 B CN109356920 B CN 109356920B CN 201811287724 A CN201811287724 A CN 201811287724A CN 109356920 B CN109356920 B CN 109356920B
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- wedge block
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- lower wedge
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to a threaded connection device, a connection structure and a pre-tightening method thereof, which are convenient to operate, and comprise an upper wedge block and a lower wedge block which are of a trapezoidal prism structure, wherein the inclined surfaces of the upper wedge block and the lower wedge block are attached, the end with larger thickness of the lower wedge block and the end with smaller thickness of the upper wedge block are positioned at the same side, the end with smaller thickness of the lower wedge block and the end with larger thickness of the upper wedge block are positioned at the same side, the upper wedge block and the lower wedge block are provided with slots, fixing bolts pass through the slots, bolt caps of the fixing bolts and the lower wedge block are respectively positioned at two sides of the upper wedge block, the relative movement of the upper wedge block and the lower wedge block can drive the fixing bolts to move along the axial direction of the upper wedge block and the lower wedge block, the lower wedge block is connected with the lever mechanism, and the lever mechanism can drive the upper wedge block and the lower wedge block to move relatively.
Description
Technical Field
The invention relates to the technical field of threaded fasteners, in particular to a threaded connection device convenient to operate, a connection structure and a pre-tightening method of the connection structure.
Background
Threaded connection has played important effect in the product production course of working, often need adjust the processing equipment when processing different specification products, changes the mould of different modules or different models, and is more frequent to the dismantlement of bolt and nut, has just so provided new requirement to the dismouting speed of bolt. At present, when the bolt connecting part is replaced, the bolts need to be screwed down or loosened by utilizing wrenches of different types, the dismounting speed often cannot meet the requirement, a certain rotating space is needed for rotating the wrenches when the bolts are replaced, and the common wrenches are not suitable for dismounting the bolts in a long and narrow working area.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a threaded connection device convenient to operate, and solves the technical problems of low dismounting speed and large required working space of the conventional bolt.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a threaded connection device of convenient operation, includes trapezoidal prism structure's last voussoir and lower voussoir, the inclined surface of going up voussoir and lower voussoir laminates mutually, and the great one end of lower voussoir thickness lies in same one side with the less one end of last voussoir thickness, and the less one end of lower voussoir thickness lies in same one side with the great one end of last voussoir thickness, upward be equipped with the fluting on voussoir and the lower voussoir, it has fixing bolt to pass in the fluting, and fixing bolt's bolt cap and lower voussoir lie in the both sides of last voussoir respectively, and the relative motion of going up voussoir and lower voussoir can drive fixing bolt along its axial motion, upward voussoir, lower voussoir are connected with lever mechanism, and lever mechanism can drive the.
Furthermore, the fixing bolt is an inner hexagon bolt, the diameter of the bolt rod of the fixing bolt is smaller than the width of the groove, and the diameter of the bolt cap is larger than the width of the groove.
Furthermore, the lever mechanism comprises a pull rod, one end of the pull rod penetrates through a first pin shaft, the first pin shaft is rotatably connected with the pull rod, two ends of the first pin shaft are respectively rotatably connected with two side plates, the side plates are fixedly connected with one side with the larger thickness of the lower wedge block, the other end of the pull rod penetrates through a second pin shaft, the second pin shaft is rotatably connected with the pull rod, the second pin shaft is fixedly connected with one end of a connecting rod, and the other end of the connecting rod is hinged to the upper wedge block.
Furthermore, the connecting rod adopts an eyelet bolt, one end of the eyelet bolt is hinged with the side face of the thicker end of the upper wedge block through a third pin shaft, and the other end of the eyelet bolt is fixedly connected with a second pin shaft.
Furthermore, a bolt rod of the swing bolt penetrates through a second pin shaft, a compression nut is screwed on the bolt rod of the swing bolt on two sides of the second pin shaft, and the compression nut compresses the second pin shaft.
Furthermore, still fixedly connected with application of force handle on the pull rod, the focus of application of force handle is located one side at last voussoir, lower voussoir and fixing bolt place.
The invention also discloses a threaded connection structure convenient to operate, which comprises a connecting piece and a connected piece, wherein the connecting piece and the connected piece are connected by adopting the threaded connection device convenient to operate, mounting holes are processed on the connecting piece and the connected piece, the mounting holes of the connected piece are threaded holes matched with the fixing bolts, the diameter of the mounting holes on the connecting piece is larger than that of the bolt caps of the fixing bolts, and the fixing bolts penetrate through the upper wedge block, the lower wedge block and the connecting piece and are fixedly connected with the threads of the connected piece.
The invention also discloses a pre-tightening method of the threaded connection structure, which is convenient to operate and comprises the following steps:
step 1: the fixing bolt penetrates through the connecting piece and is in threaded connection with the connected piece, and the lower wedge block and the upper wedge block are horizontally inserted into the bolt rod section between the connecting piece and the bolt cap of the fixing bolt.
Step 2: and pulling the lower wedge block to make the upper wedge block and the lower wedge block move together until the inner side surface of the slot of the upper wedge block contacts with the circumferential surface of the bolt rod of the fixing bolt.
And step 3: the lever mechanism acts to drive the lower wedge block to move towards the thicker side of the upper wedge block, the relative motion of the upper wedge block and the lower wedge block drives the fixing bolt to move, the fixing bolt drives the connected piece to press the connected piece, and the pre-tightening of the connected piece and the connected piece is realized.
The invention has the beneficial effects that:
1. when the bolt connecting device is used, when the connecting piece and the connected piece are connected by the bolt, the bolt does not need to be repeatedly rotated by a spanner, the disassembling and assembling speed of the bolt is greatly improved, the screwing link of the bolt is omitted, the bolt connecting device is suitable for places where the bolt is repeatedly disassembled and assembled, and the working efficiency is improved.
2. When the connecting piece and the connected piece are used, the lever principle is adopted for pre-tightening the connecting piece and the connected piece, the operation is labor-saving, tools such as a spanner and the like are not needed, the requirement on space is low, the pull rod and the force application handle are distributed in the vertical direction, and the connecting piece and the connected piece are suitable for narrow space operation.
3. When the self-locking type connecting piece is used, the upper wedge block and the lower wedge block can realize self-locking, relative sliding cannot occur, the self weight of the force application handle is favorable for pre-tightening the connecting piece and the connected piece, the connecting piece and the connected piece are prevented from being loosened due to vibration, the stability is high, the threaded connecting device can be only manually disassembled, and the mistaken touch prevention on the structure is realized.
4. The invention has simple structure of each part, low processing cost, strong practicability and can design corresponding components for fixing bolts with different sizes.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic front view of a threaded connection according to the present invention;
FIG. 2 is a perspective view of the threaded connection of the present invention;
FIG. 3 is a schematic view of the connection of the tire press of the present invention to a tire mold;
FIG. 4 is a schematic view of the connection structure of the tire vulcanizer of the present invention with a tire mold;
the tire vulcanizing machine comprises an upper wedge block 1, a lower wedge block 2, a groove 3, an inner hexagon bolt 4, a side plate 5, a first pin shaft 6, a pull rod 7, a second pin shaft 8, an eyelet bolt 9, a third pin shaft 10, a compression nut 11, a force application handle 12, a tire vulcanizing machine 13 and a tire mold 14.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As described in the background art, the conventional bolt dismounting and mounting speed cannot meet the requirement of actual work, which causes waste in the production performance of production equipment.
In a typical embodiment of the present application, as shown in fig. 1-2, a threaded connection device convenient for operation comprises an upper wedge 1 and a lower wedge 2 having a trapezoidal prism structure, wherein the upper surface of the upper wedge is a horizontal plane, the lower surface of the upper wedge is an inclined plane, the upper surface of the lower wedge is an inclined plane, the lower surface of the lower wedge is a horizontal plane, two sides of the upper wedge and the lower wedge are trapezoidal surfaces, the thicknesses of two ends of the upper wedge are different, the thicknesses of two ends of the lower wedge are different, the inclined planes of the upper wedge and the lower wedge are attached to each other, one end of the upper wedge with a larger thickness and one end of the lower wedge with a smaller thickness are located on the same side, one end of the upper wedge with a smaller thickness and one end of the lower wedge with a larger thickness are located on the same side, a slot 3 is formed in the upper wedge and the lower wedge, the inner side of the slot comprises two, fixing bolts penetrate through the slots of the upper wedge block and the lower wedge block, the fixing bolts are inner hexagon bolts 4, bolt rods of the inner hexagon bolts penetrate through the slots of the upper wedge block and the lower wedge block, the size of each slot is slightly larger than the diameter of each bolt rod of each inner hexagon bolt, but is smaller than the diameter of each bolt cap of each inner hexagon bolt, the bolt rods of the inner hexagon bolts can penetrate through the slots, the bolt caps cannot penetrate through the slots, and the bolt caps are located above the upper wedge block.
The upper wedge block and the lower wedge block are connected with a lever mechanism, and the lever mechanism can drive the lower wedge block to move along the upper wedge block.
The lever mechanism comprises a pull rod 7, a first pin shaft 6 penetrates through the upper end of the pull rod, the first pin shaft is rotatably connected with the pull rod, two ends of the first pin shaft are rotatably connected with the two side plates 5 respectively, the two side plates are approximate to L-shaped, and the bottoms of the two side plates are fixedly connected with the side face of the end with larger thickness of the lower wedge block through bolts. And a second pin shaft 8 parallel to the first pin shaft penetrates through the lower end of the pull rod, the second pin shaft is rotatably connected with the pull rod, the second pin shaft is fixedly connected with one end of a connecting rod, and the other end of the connecting rod is hinged with the side face of the end with the larger thickness of the upper wedge block.
The connecting rod adopts an eyelet bolt 9, one end of the eyelet bolt is hinged with the upper wedge block through a third pin shaft 10, the other end of the eyelet bolt passes through a second pin shaft, pressing nuts 11 are screwed on bolt rod sections positioned on two sides of the second pin shaft on the eyelet bolt, and the two pressing nuts press the second pin shaft, so that the fixed connection of the eyelet bolt and the second pin shaft is realized.
The top end of the pull rod is fixedly connected with a force application handle 12, the gravity center of the force application handle is located on one side where the upper wedge block, the lower wedge block and the hexagon socket head cap screw are located, and therefore the loose connection condition generated under the vibration condition can be prevented.
The invention also discloses a threaded connection structure convenient to operate, which comprises a connecting piece and a connected piece, wherein the connecting piece and the connected piece are connected by adopting the threaded connection device convenient to operate, in a typical embodiment of the application, as shown in figures 3-4, the connecting piece is a tire vulcanizer 13, the connected piece is a tire mold 14, the tire vulcanizer and the tire mold are connected by adopting a plurality of threaded connection devices convenient to operate, mounting holes are processed on the tire vulcanizer and the tire mold, the mounting holes on the tire mold are threaded holes matched with the inner hexagon bolts, the diameter of the mounting holes on the tire vulcanizer is larger than that of the bolt caps of the inner hexagon bolts, and the bolt rods of the inner hexagon bolts pass through the upper wedge block, the lower wedge block and the tire vulcanizer and are fixedly connected with the tire mold through threads.
The invention also discloses a pre-tightening method of the threaded connection structure, which is convenient to operate and comprises the following steps:
step 1: the bolt rod connecting piece (tire vulcanizer) of the inner hexagon bolt is in threaded connection with the connected piece (tire mold), and a lower wedge block and an upper wedge block are horizontally inserted into the bolt rod section between the bolt cap of the inner hexagon bolt and the connecting piece.
Step 2: and pulling the lower wedge block to enable the upper wedge block and the lower wedge block to move together until the arc-shaped surface of the inner side surface of the upper wedge block is in close contact with the circumferential surface of the bolt rod of the hexagon socket head cap screw.
And step 3: pressing the force application handle to generate a moment on the pull rod to drive the upper end of the pull rod to move towards one side of the inner hexagon bolt, and the lower end of the pull rod to move away from the inner hexagon bolt, the upper end of the pull rod drives the lower wedge block to move towards the thicker side of the upper wedge block through the first pin shaft, meanwhile, the second pin shaft pulls the upper wedge block through the eyelet bolt to keep the upper wedge block immovable in the horizontal direction, the relative movement of the upper wedge block and the lower wedge block drives the inner hexagon bolt to move upwards, the inner hexagon bolt drives the connected piece (tire mold) to press the connected piece (tire vulcanizer), under the action of friction force and the pull force of the inner hexagon bolt of the tire mold, the upper wedge block and the lower wedge block realize self-locking, and can not slide relatively, thereby realizing the pre-tightening of the tire vulcanizer and the tire mold, and the gravity center of the force application handle is positioned at one, the dead weight of messenger's application of force handle is favorable to tending to the pretension with tire mould and tire vulcanizer, can prevent that vibration from making connection structure's pretension produce lax, and stability is stronger.
After the connecting piece and the connected piece are connected and fastened, the force application handle is pushed reversely, the lower wedge block moves towards the side with smaller thickness of the upper wedge block, the connecting piece and the connected piece can be loosened, the upper wedge block, the lower wedge block and the lever mechanism are taken down, and the connected piece can be taken down directly because the diameter of the mounting hole of the connecting piece is larger than that of the upper bolt cap of the hexagon socket bolt.
In the using process of the invention, the process of screwing the bolt is saved, the dismounting and mounting speed of the bolt is improved, the invention is suitable for places with repeated dismounting and mounting, the working efficiency is improved, and the lever principle is utilized to work, no spanner is needed, the requirement on space is low, and the invention is suitable for narrow working space.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (7)
1. A threaded connection device convenient to operate is characterized by comprising an upper wedge block and a lower wedge block which are in a trapezoidal prism structure, wherein the inclined surfaces of the upper wedge block and the lower wedge block are attached, the end with the larger thickness of the lower wedge block and the end with the smaller thickness of the upper wedge block are positioned on the same side, the end with the smaller thickness of the lower wedge block and the end with the larger thickness of the upper wedge block are positioned on the same side, slots are formed in the upper wedge block and the lower wedge block, fixing bolts penetrate through the slots, bolt caps of the fixing bolts and the lower wedge block are respectively positioned on two sides of the upper wedge block, relative movement of the upper wedge block and the lower wedge block can drive the fixing bolts to move along the axial direction of the upper wedge block and the lower wedge block to be connected with a lever mechanism, and the lever mechanism can drive the upper wedge;
the lever mechanism comprises a pull rod, one end of the pull rod penetrates through a first pin shaft, the first pin shaft is rotatably connected with the pull rod, two ends of the first pin shaft are rotatably connected with the two side plates respectively, the side plates are fixedly connected with one side with the larger thickness of the lower wedge block, a second pin shaft penetrates through the other end of the pull rod, the second pin shaft is rotatably connected with the pull rod, the second pin shaft is fixedly connected with one end of a connecting rod, and the other end of the connecting rod is hinged with the upper wedge block.
2. An easily operated screw coupling device as claimed in claim 1, wherein said fixing bolt is a hexagon socket head bolt having a shank diameter smaller than the width of the slot and a cap diameter larger than the width of the slot.
3. The screw connection device for facilitating manipulation of claim 1, wherein the connecting rod is a swing bolt, one end of which is hinged to the side of the upper wedge having a larger thickness by a third pin, and the other end of which is fixedly connected to the second pin.
4. A screw coupling device for facilitating handling according to claim 3, wherein the bolt shank of the swing bolt passes through the second pin, and a pressing nut is screwed onto the bolt shank of the swing bolt on both sides of the second pin, the pressing nut pressing the second pin.
5. An easily operable screw-threaded connection according to claim 1, wherein a force application handle is further fixedly connected to the pull rod, and the center of gravity of the force application handle is located on the side where the upper wedge, the lower wedge and the fixing bolt are located.
6. An easy-to-operate threaded connection structure, which is characterized by comprising a connecting piece and a connected piece, wherein the connecting piece and the connected piece are connected by adopting the easy-to-operate threaded connection device as claimed in any one of claims 1 to 5, mounting holes are processed on the connecting piece and the connected piece, the mounting holes of the connected piece are threaded holes matched with fixing bolts, the diameter of the mounting holes on the connecting piece is larger than that of bolt caps of the fixing bolts, and the fixing bolts penetrate through an upper wedge block, a lower wedge block and the connecting piece and are in threaded fixed connection with the connected piece.
7. A method of pretensioning a threaded connection according to claim 6, characterized by the steps of:
step 1: the fixing bolt penetrates through the connecting piece and is in threaded connection with the connected piece, and a lower wedge block and an upper wedge block are horizontally inserted into a bolt rod section between the connecting piece and a bolt cap of the fixing bolt;
step 2: pulling the lower wedge block to enable the upper wedge block and the lower wedge block to move together until the inner side face of the slot of the upper wedge block is contacted with the circumferential face of the bolt rod of the fixing bolt;
and step 3: the lever mechanism acts to drive the lower wedge block to move towards the thicker side of the upper wedge block, the relative motion of the upper wedge block and the lower wedge block drives the fixing bolt to move, the fixing bolt drives the connected piece to press the connected piece, and the pre-tightening of the connected piece and the connected piece is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287724.3A CN109356920B (en) | 2018-10-31 | 2018-10-31 | Threaded connection device convenient to operate, connection structure and pre-tightening method of threaded connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287724.3A CN109356920B (en) | 2018-10-31 | 2018-10-31 | Threaded connection device convenient to operate, connection structure and pre-tightening method of threaded connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356920A CN109356920A (en) | 2019-02-19 |
| CN109356920B true CN109356920B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811287724.3A Active CN109356920B (en) | 2018-10-31 | 2018-10-31 | Threaded connection device convenient to operate, connection structure and pre-tightening method of threaded connection device |
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| CN (1) | CN109356920B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013000A (en) * | 2020-08-28 | 2020-12-01 | 贵州中烟工业有限责任公司 | Fast-assembling fastening bolt |
| CN112008656A (en) * | 2020-08-28 | 2020-12-01 | 贵州中烟工业有限责任公司 | Replaceable quick-mounting fastening bolt |
| CN113945315B (en) * | 2021-10-18 | 2024-01-30 | 中国飞机强度研究所 | Rotary handle switching force measuring device for cabin door |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8322762B2 (en) * | 2009-02-27 | 2012-12-04 | Nissan North America, Inc. | Door gap adjustment for a motor vehicle |
| CN201437231U (en) * | 2009-07-20 | 2010-04-14 | 中国石油天然气股份有限公司 | Wedge type wheel puller |
| CN203371475U (en) * | 2013-06-25 | 2014-01-01 | 上海宝钢工业技术服务有限公司 | Device for rapidly demounting bolts in interference fit with flange |
| CN103753492A (en) * | 2013-12-11 | 2014-04-30 | 余姚市电波机械有限公司 | Self-lubricating bearing dismounting device |
| CN103659722A (en) * | 2013-12-27 | 2014-03-26 | 新余钢铁集团有限公司 | Bolt dismounting and mounting locking device |
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