CN112727890B - Fixed torque nut assembly - Google Patents
Fixed torque nut assembly Download PDFInfo
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- CN112727890B CN112727890B CN202011527862.1A CN202011527862A CN112727890B CN 112727890 B CN112727890 B CN 112727890B CN 202011527862 A CN202011527862 A CN 202011527862A CN 112727890 B CN112727890 B CN 112727890B
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- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a fixed-torque nut assembly and relates to the field of fixed-torque nuts. The invention comprises a threaded rod, a connecting part and a rotating part, wherein the connecting part is fixedly connected to the top of the threaded rod, and the rotating part is positioned at the top of the connecting part; the connecting part is in a flat cylinder shape, placing groove positions are arranged on two sides of the connecting part, and movable clamping pieces are fixedly sleeved in the placing groove positions; the movable clamping piece comprises a placing block, a spring, a movable block and a wedge-shaped block, wherein a movable groove is formed in one side surface of the placing block, the spring and the movable block are movably sleeved inside the movable groove, one end of the spring is abutted to the movable block, the other end of the spring is abutted to the inner wall of the movable groove, and two inner side walls at the periphery of the movable groove are formed into a limiting block. The rotating handle is rotated to drive the rotating part to rotate at the top of the connecting part, and when the torque force reaches a set value, the abutting block extrudes the inclined plane and pushes the wedge-shaped block to contract into the movable groove position, so that the purpose of loosening is achieved, the structure is simple, and the die opening difficulty is small.
Description
Technical Field
The invention belongs to the technical field of fixed-torque nuts, and particularly relates to a fixed-torque nut assembly.
Background
Decide the moment of torsion nut subassembly and can effectively prevent that locking force is too big and destroy the structure, the ratchet nut subassembly just is one kind of deciding the moment of torsion nut subassembly, the principle is in the middle of with interior rotating member nestification in outer rotating member, design ratchet pawl structure between the two, outer rotating member drives interior rotating member and rotates together during forward rotation, reach the purpose of locking, and when torsion reaches the setting value, the ratchet pawl can be partd by force and make outer rotating member no longer drive interior rotating member and rotate, outer rotating member drives interior rotating member and rotates together during reverse rotation, reach and loosen the purpose.
The ratchet and pawl structure between the inner rotating piece and the outer rotating piece of the ratchet nut assembly is small in size and high in precision, a cutting groove needs to be formed in the outer rotating piece to provide the possibility of deformation of the ratchet and pawl, the structure is complex, the die opening difficulty is high, and the use requirement is not met.
To solve the above problems, the present invention provides a constant torque nut assembly.
Disclosure of Invention
The invention aims to provide a fixed-torque nut assembly, which solves the problems of complex structure and large die opening difficulty of some conventional fixed-torque nut assemblies.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a fixed-torque nut assembly, which comprises a threaded rod, a connecting part and a rotating part, wherein the connecting part is fixedly connected to the top of the threaded rod, and the rotating part is positioned at the top of the connecting part;
the connecting part is in a flat cylinder shape, placing groove positions are formed in two sides of the connecting part, and movable clamping pieces are fixedly sleeved in the placing groove positions;
the movable clamping piece comprises a placing block, a spring, a movable block and a wedge-shaped block, wherein a movable groove is formed in the surface of one side of the placing block, the spring and the movable block are movably sleeved inside the movable groove, one end of the spring abuts against the movable block, the other end of the spring abuts against the inner wall of the movable groove, two inner side walls at the peripheral edge of the movable groove are formed with limiting blocks, the wedge-shaped block is formed on one side of the movable block, and the wedge-shaped block penetrates through an opening formed by the two limiting blocks and extends to the outside of the movable groove;
circular trench has been seted up to the bottom of rotation portion, the interior roof fixedly connected with pivot of circular trench, the pivot is rotated and is connected the upper surface at connecting portion, the inside week lateral wall shaping of circular trench has two to support the piece, just support piece and wedge looks adaptation.
Preferably, a side of activity trench sets up to the inclined plane, another side sets up to the plane vertical with connecting portion upper surface, supports the piece and can promote the wedge after the inclined plane of wedge contacts, makes the wedge drive the threaded rod and rotates and with the threaded rod screw in, after torsion reaches the setting value, supports the piece and extrudees the inclined plane and promote the wedge and shrink to the activity trench in, and then makes the rotation portion no longer drive connecting portion and rotate, the contra-rotation changes the handle, support the piece and the plane of wedge and contact each other, can drive the threaded rod and rotate.
Preferably, the upper surface shaping of rotation portion has the fixed block, one side activity of fixed block articulates there is the commentaries on classics handle, it is the hemicyclic annular to change the handle, and the setting of changeing the handle can make things convenient for the operator to rotate rotation portion.
Preferably, the outer diameter of the rotating handle is equal to the diameter of the rotating part, and the inner diameter of the rotating handle is equal to the diameter of the fixed block, so that the rotating handle can be flatly placed on the upper surface of the rotating part, and further, the rotating handle can be accommodated.
Preferably, a protruding block is formed on one side of the rotating handle, the protruding block exceeds the edge of the rotating portion and is in a suspended state, and the rotating portion is rotated by poking the protruding block.
Preferably, the connecting portion are located inside the circular groove, and the abutting block is close to the peripheral side face of the connecting portion, so that the contact surface between the abutting block and the wedge-shaped block can be increased, and the stress effect is better.
Preferably, the two groups of movable clamping pieces are distributed on two sides of the rotating part in a circular array, and after a set torsion value is reached, the rotating handle is rotated to drive the abutting blocks to sequentially extrude the two inclined planes.
The invention has the following beneficial effects:
1. according to the invention, the rotating part is driven to rotate at the top of the connecting part by rotating the rotating handle, the abutting block can push the wedge block after being contacted with the inclined surface of the wedge block, so that the wedge block drives the threaded rod to rotate and screw the threaded rod into the threaded hole, and when the torsion reaches a set value, the abutting block extrudes the inclined surface and pushes the wedge block to contract into the movable groove position, so that the rotating part does not drive the connecting part to rotate any more, the purpose of loosening is achieved, the structure is simple and reasonable, and the die opening difficulty is small.
2. The semi-annular rotary handle is arranged, the rotary handle can be lifted up through the stirring lug, an operator can conveniently rotate the rotary part through the arrangement of the rotary handle, the rotary handle can be horizontally placed on the upper surface of the rotary part, and the rotary handle is further convenient to store.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a connecting portion according to the present invention;
FIG. 3 is a bottom view of the rotating part of the present invention;
FIG. 4 is a schematic view of the movable cartridge of the present invention;
FIG. 5 is a schematic view of the bottom connection structure of the connection part and the rotation part according to the present invention;
FIG. 6 is a schematic view of the structure of the rotating handle of the present invention;
FIG. 7 is a schematic view of a placement block structure according to the present invention;
fig. 8 is a schematic structural diagram of the movable block of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below: 1. a threaded rod; 2. a connecting portion; 21. placing a slot position; 3. a rotating part; 31. a circular slot position; 32. a rotating shaft; 33. a resisting block; 34. a fixed block; 35. turning a handle; 351. a bump; 4. a movable fastener; 41. placing the blocks; 411. a movable slot position; 412. a limiting block; 42. a spring; 43. a movable block; 44. a wedge block; 441. a bevel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, the present invention is a constant torque nut assembly, including a threaded rod 1, a connecting portion 2 and a rotating portion 3, wherein the connecting portion 2 is fixedly connected to the top of the threaded rod 1, and the rotating portion 3 is located at the top of the connecting portion 2;
the connecting part 2 is in a flat cylindrical shape, the two sides of the connecting part 2 are both provided with a placing groove 21, and the inside of the placing groove 21 is fixedly sleeved with a movable clamping piece 4;
the movable clamping piece 4 comprises a placing block 41, a spring 42, a movable block 43 and a wedge-shaped block 44, wherein a movable slot 411 is formed in the surface of one side of the placing block 41, the spring 42 and the movable block 43 are movably sleeved inside the movable slot 411, one end of the spring 42 abuts against the movable block 43, the other end of the spring abuts against the inner wall of the movable slot 411, two inner side walls at the periphery of the movable slot 411 are formed with limiting blocks 412, the wedge-shaped block 44 is formed on one side of the movable block 43, and the wedge-shaped block 44 penetrates through an opening formed by the two limiting blocks 412 and extends to the outside of the movable slot 411;
Wherein, a side of the movable slot 411 is set as an inclined plane 441, the other side is set as a plane vertical to the upper surface of the connecting part 2, the supporting block 33 can push the wedge block 44 after contacting with the inclined plane 441 of the wedge block 44, so that the wedge block 44 drives the threaded rod 1 to rotate and screws the threaded rod 1 into the threaded hole, when the torque force reaches a set value, the supporting block 33 extrudes the inclined plane 441 and pushes the wedge block 44 to contract into the movable slot 411, and further the rotating part 3 does not drive the connecting part 2 to rotate, the rotating handle 35 rotates in the reverse direction, the supporting block 33 contacts with the plane of the wedge block 44, and the threaded rod 1 can be driven to rotate in the reverse direction.
Wherein, the upper surface shaping of rotation portion 3 has fixed block 34, and one side activity of fixed block 34 articulates there is the commentaries on classics handle 35, changes the handle 35 and is the hemicyclic form, changes the setting of handle 35 and can make things convenient for the operator to rotate rotation portion 3.
The outer diameter of the rotating handle 35 is equal to the diameter of the rotating part 3, and the inner diameter of the rotating handle 35 is equal to the diameter of the fixed block 34, so that the rotating handle 35 can be flatly placed on the upper surface of the rotating part 3, and the rotating handle 35 can be accommodated.
Wherein, the one side shaping of rotating handle 35 has lug 351, and lug 351 surpasss the edge of rotating part 3 and is unsettled state, rotates rotating part 3 through stirring lug 351.
Wherein, connecting portion 2 is located inside circular trench 31, and supports the piece 33 and press close to the week side of connecting portion 2, and then can increase and support the contact surface of piece 33 and wedge 44, and the atress effect is better.
Wherein, two groups of movable fasteners 4 are distributed on two sides of the rotating part 3 in a circular array, and after a set torque value is reached, the rotating handle 35 is rotated to drive the abutting block 33 to sequentially extrude the two inclined surfaces 441.
As shown in fig. 1-6, the present embodiment is a method of using a constant torque nut assembly: insert threaded rod 1 in the screw of waiting to lock the structure, rotate handle 35 through rotating and drive rotation portion 3 and rotate at the top of connecting portion 2, and support piece 33 and can promote wedge 44 after the inclined plane 441 of wedge 44 contacts, make wedge 44 drive threaded rod 1 and rotate and screw in threaded rod 1 in the screw, after torsion reaches the setting value, support piece 33 extrudees inclined plane 441 and promotes wedge 44 and contract to activity trench 411, and then make rotation portion 3 no longer drive connecting portion 2 and rotate, reach and loosen the mesh, reverse rotation rotates handle 35, support piece 33 and the plane of wedge 44 and contact each other, can drive threaded rod 1 and rotate.
As shown in fig. 4 and fig. 7-8, a communication hole for communicating the two placing slots 21 is formed in the connecting portion 2, a limiting rod is inserted into the communication hole, a limiting hole communicated with the communication hole is formed in one side surface of each placing block 41 away from the limiting block 412, two ends of the limiting rod penetrate through the limiting hole and extend into the spring 42, a limiting groove body 420 is formed in a vertical surface of the movable block 43 close to the spring 42, the upper side of the limiting groove body 420 is communicated with the outside, the end portion of the limiting rod extending into the spring 42 is clamped in the limiting groove body 420, and the groove depth of the limiting groove body 420 is larger than the length of the spring 42 when the limiting groove body is compressed to the limit state.
The restraining bar has several functions: first, the restricting lever may make two springs 42 always between the bottom of the placing slot 21 and the movable block 43 to serve as an elastic support. Second, the movable block 43 can be restricted from being disengaged upward.
Next, an axial restricting mechanism for preventing the placing block 41 from escaping axially outward along the restricting rod is provided between the restricting rod and the placing block 41. Specifically, this axial limiting mechanism is equipped with the confession including setting up at the axial bar groove of restriction lever to and the bar locking bar of setting in the bar groove at the both ends of bar locking bar respectively, be equipped with the hasp on the pore wall upside in the restriction hole the process breach that the hasp passed through, rotatory restriction lever makes the hasp detain the outer drill way in the restriction hole.
The hole wall upside that lies in the restriction hole through the breach, thereby it can prevent that the restriction pole free rotation from making the hasp and appearing the phenomenon of alignment through the breach, and simultaneously, the bar locking strip utilizes it can be so that the restriction pole axial is restricted of hasp.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The fixed-torque nut assembly comprises a threaded rod (1), a connecting part (2) and a rotating part (3), and is characterized in that the connecting part (2) is fixedly connected to the top of the threaded rod (1), and the rotating part (3) is positioned at the top of the connecting part (2);
the connecting part (2) is in a flat cylinder shape, placing groove positions (21) are formed in the two sides of the connecting part (2), and movable clamping pieces (4) are fixedly sleeved in the placing groove positions (21);
the movable clamping piece (4) comprises a placing block (41), a spring (42), a movable block (43) and a wedge-shaped block (44), wherein a movable groove (411) is formed in the surface of one side of the placing block (41), the spring (42) and the movable block (43) are movably sleeved in the movable groove (411), one end of the spring (42) abuts against the movable block (43), the other end of the spring abuts against the inner wall of the movable groove (411), two inner side walls at the periphery of the movable groove (411) are formed into limiting blocks (412), the wedge-shaped block (44) is formed on one side of the movable block (43), and the wedge-shaped block (44) penetrates through an opening formed by the two limiting blocks (412) and extends to the outside of the movable groove (411);
a circular groove (31) is formed in the bottom of the rotating portion (3), a rotating shaft (32) is fixedly connected to the inner top wall of the circular groove (31), the rotating shaft (32) is rotatably connected to the upper surface of the connecting portion (2), two abutting blocks (33) are formed on the inner peripheral side wall of the circular groove (31), and the abutting blocks (33) are matched with the wedge blocks (44);
one side surface of the movable slot position (411) is provided with an inclined surface (441), and the other side surface of the movable slot position is provided with a plane vertical to the upper surface of the connecting part (2); a fixed block (34) is formed on the upper surface of the rotating part (3), a rotating handle (35) is movably hinged to one side of the fixed block (34), and the rotating handle (35) is semi-annular;
the use method of the constant-torque nut assembly comprises the following steps: the screw rod (1) is inserted into a screw hole of a structural member to be locked, the rotating portion (3) is driven to rotate at the top of the connecting portion (2) through rotating the rotating handle (35), the wedge block (44) can be pushed after the abutting block (33) is contacted with the inclined surface (441) of the wedge block (44), the wedge block (44) drives the screw rod (1) to rotate and enables the screw rod (1) to be screwed into the screw hole, after the torsion reaches a set value, the abutting block (33) extrudes the inclined surface (441) and pushes the wedge block (44) to shrink into the movable groove (411), the rotating portion (3) is enabled not to drive the connecting portion (2) to rotate any more, the purpose of loosening is achieved, the rotating handle (35) rotates in the reverse direction, the abutting block (33) is contacted with the plane of the wedge block (44), and the screw rod (1) can be driven to rotate in the reverse direction.
2. The constant-torque nut assembly according to claim 1, wherein the outer diameter of the rotating grip (35) is equal to the diameter of the rotating portion (3), and the inner diameter of the rotating grip (35) is equal to the diameter of the fixing block (34).
3. The constant-torque nut assembly according to claim 2, wherein the rotating handle (35) is formed with a protrusion (351) at one side thereof, and the protrusion (351) is protruded beyond an edge of the rotating portion (3) and is in a suspended state.
4. The constant-torque nut assembly according to claim 1, wherein the connecting portion (2) is located inside the circular groove (31), and the abutting block (33) is proximate to a peripheral side surface of the connecting portion (2).
5. Constant-torque nut assembly according to claim 1, characterized in that said two sets of movable jaws (4) are distributed in a circular array on both sides of the rotating portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527862.1A CN112727890B (en) | 2020-12-22 | 2020-12-22 | Fixed torque nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527862.1A CN112727890B (en) | 2020-12-22 | 2020-12-22 | Fixed torque nut assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112727890A CN112727890A (en) | 2021-04-30 |
| CN112727890B true CN112727890B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011527862.1A Active CN112727890B (en) | 2020-12-22 | 2020-12-22 | Fixed torque nut assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN112727890B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623304B (en) * | 2021-09-15 | 2022-09-30 | 浙江新盛达金属科技发展股份有限公司 | Anti-seismic buffer combined screw for fixed torque connecting piece |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202251342U (en) * | 2011-09-29 | 2012-05-30 | 厦门瑞尔特卫浴工业有限公司 | Fixed torque nut |
| CN204113852U (en) * | 2014-09-20 | 2015-01-21 | 宁波市北仑发电设备附件厂 | torque resistant nut |
| CN205349999U (en) * | 2016-03-04 | 2016-06-29 | 马鞍山师范高等专科学校 | Moment of torsion formula hand screwed nut |
| WO2017003285A1 (en) * | 2015-07-02 | 2017-01-05 | J. Van Walraven Holding B.V. | Tightening screw having torque limiting cap |
| CN107420404A (en) * | 2017-09-27 | 2017-12-01 | 苏州工业园区新凯精密五金有限公司 | A kind of torque take-up screw assemblies |
| CN109915456A (en) * | 2019-02-15 | 2019-06-21 | 海益（厦门）建材工业有限公司 | It is a kind of to determine torque nut component |
-
2020
- 2020-12-22 CN CN202011527862.1A patent/CN112727890B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202251342U (en) * | 2011-09-29 | 2012-05-30 | 厦门瑞尔特卫浴工业有限公司 | Fixed torque nut |
| CN204113852U (en) * | 2014-09-20 | 2015-01-21 | 宁波市北仑发电设备附件厂 | torque resistant nut |
| WO2017003285A1 (en) * | 2015-07-02 | 2017-01-05 | J. Van Walraven Holding B.V. | Tightening screw having torque limiting cap |
| CN205349999U (en) * | 2016-03-04 | 2016-06-29 | 马鞍山师范高等专科学校 | Moment of torsion formula hand screwed nut |
| CN107420404A (en) * | 2017-09-27 | 2017-12-01 | 苏州工业园区新凯精密五金有限公司 | A kind of torque take-up screw assemblies |
| CN109915456A (en) * | 2019-02-15 | 2019-06-21 | 海益（厦门）建材工业有限公司 | It is a kind of to determine torque nut component |
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| CN112727890A (en) | 2021-04-30 |
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Effective date of registration: 20220525 Address after: 322000 floor 5, building 1, No. 102, Kaiyuan North Street, Niansanli street, Yiwu City, Jinhua City, Zhejiang Province Applicant after: Zhejiang tengyou Technology Co.,Ltd. Address before: 322204 No.2 Qinggong Road, Huangzhai Town, Pujiang County, Jinhua City, Zhejiang Province Applicant before: Pujiang Wuxin Technology Co.,Ltd. |
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