CN108561409A - Embedding spring formula double anti-loosing nut - Google Patents
Embedding spring formula double anti-loosing nut Download PDFInfo
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- CN108561409A CN108561409A CN201810779275.8A CN201810779275A CN108561409A CN 108561409 A CN108561409 A CN 108561409A CN 201810779275 A CN201810779275 A CN 201810779275A CN 108561409 A CN108561409 A CN 108561409A
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- nut body
- boss
- hole
- gasket
- nut
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 238000009827 uniform distribution Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 21
- 230000001965 increasing effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
- 235000011613 Pinus brutia Nutrition 0.000 description 4
- 241000018646 Pinus brutia Species 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008774 maternal effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
- F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
Abstract
The invention belongs to anti-loose fastener technical fields, disclose embedding spring formula double anti-loosing nut, including nut body, the spiral spring piece of nut body upper end, the gasket of nut body lower end.Nut body lower face is equipped with spacer groove, and the slot bottom of spacer groove is laid with card slot, and the slot bottom of spacer groove is divided into multiple boss by card slot, and the top end surface of boss is clinoplain or curved inclined surface, and the inclination angle of top end surface is more than the helical angle of screwed hole of centre；Gasket is circular ring shape and is located in spacer groove that the internal diameter of gasket is more than or equal to the Major Diam of screwed hole of centre；One side end face of gasket is equipped with convex block；It is additionally provided with block between adjacent two convex block.When nut has loosening trend, convex block can be lifted nut body with the mutual active force of boss, increase the screw thread on nut body and the operation power between bolt or screw rod and then the frictional force of increase between the two, achieve the purpose that locking.
Description
Technical field
The invention belongs to anti-loose fastener technical fields, and in particular to a kind of stop nut more particularly to embedding spring formula are dual
Stop nut.
Background technology
In numerous areas such as industrial production, automobile, aerospace and rail traffics, screw threads for fastening is largely used in a device
Part come realize connection, but for the shock loading and alternating load of high intensity in the case of, the anti-loose of threaded fastener is asked
Topic is not solved effectively always.
For the anti-loose demand of threaded fastener, existing a large amount of nut, mainly passes through mechanical stop, trimming on the market
The modes such as stop, riveting punching are realized anti-loose, but the effect is unsatisfactory；Nut once loosens, effective connection between screw bolt and nut
Failure can be loosened quickly, and reliability cannot ensure.
In addition, existing nut production and processing difficulty is big, production cost is high, yield rate is low and reliability cannot be guaranteed；
In repair and maintenance, some abnormity nuts must be dismantled using specific purpose tool, and disassembly process is cumbersome, time-consuming and laborious, extremely
Inconvenience causes working efficiency low.
Therefore, in this field there are technical problem urgently to be resolved hurrily, need to propose more rational technical solution, solve with
Upper technical problem.
Invention content
Present invention aims at embedding spring formula double anti-loosing nut is provided, which relies on nut body
On helicoid and gasket on helicoid cooperate, can by the mutual active force of two helicoids in nut loosening
It is lifted nut body, the screw thread on nut body and the frictional force between bolt or screw rod is increased, achievees the purpose that locking.
In order to realize that above-mentioned technique effect, the technical solution adopted in the present invention be：
Embedding spring formula double anti-loosing nut, including nut body, are arranged the spiral spring piece in nut body upper end, and setting exists
The gasket of nut body lower end.Specifically, the nut body lower face is provided with the center screw thread of connection nut body
The slot bottom of spacer groove is divided into multiple boss, boss by the slot bottom of the spacer groove in hole, spacer groove by card slot, card slot is evenly distributed in
Top end surface be clinoplain or curved inclined surface, and the inclination angle of top end surface be more than screwed hole of centre helical angle；It is described
Gasket is circular ring shape and is located in spacer groove that the internal diameter of gasket is more than or equal to screwed hole of centre Major Diam；One side of gasket
Face is equipped with the convex block being engaged with boss, and convex block is corresponding clinoplain or curved inclined surface with the contact surface of boss, and is connect
The inclination angle of contacting surface is equal with the inclination angle of top end surface at the top of boss；Block, the height of block are additionally provided between adjacent two convex block
Maximum height of the degree more than convex block；When boss is matched with bump contact merges relative rotation, block is caught in card slot and in card slot
It is mobile；When the side wall surface of block and card slot contacts, boss reaches the extreme position of relative rotation with convex block block.
Further, the nut body used under normal conditions includes but not limited to hex nut.
Further, as a preferred option, the top end surface of the boss is helicoid, and the helical angle of helicoid is more than
The helical angle of screwed hole of centre；It is helicoid with the contact surface of boss on the convex block, the helical angle of the helicoid is equal to boss
The helical angle of top end surface.When nut body and gasket relatively rotate, the helicoid between boss and convex block is opposite sliding
It is dynamic, and extruding and promotion are generated, so that nut body and gasket is located remotely from each other in the axial direction, according to this action principle, spiral shell can be increased
The extruding force of thread between maternal body and screw rod or bolt achievees the effect that locking to increase the frictional force between screw thread.
Further, another side end face of the gasket protrudes the lower face of nut body or the lower face with nut body
It flushes.Usually set the end face to plane, and for increasing friction force, which is not generally smooth surface.It is set as plane just
In uniform force, the roughness in the face is improved, it is close convenient for the contact between gasket and workpiece, it is difficult to opposite sliding occur.
Further, the spiral spring piece includes first coil portion and the second coil part, and the second coil part is coaxially
It is sleeved on outside first coil portion；One end of first coil portion is connected with one end of the second coil part, the free end of first coil portion
It is provided with outwardly extending limit protrusion, the rounded winding of first coil portion, second coil part is wound in polygon.
First coil portion carries out coiling cooperation with the screw thread of screw rod or bolt, when screw rod or bolt rotation, first coil portion is driven to turn
Twisting resistance is moved and generates, which resists bolt or screw rod rotation, can achieve the effect that a certain extent locking.
Further, the first coil portion is wound according to isometrical helix.Isometrical helix can be in axial direction
Coordinate to a greater degree with screw rod or bolt apart from upper, and generates the twisting resistance of bigger.
Further, the upper surface of the nut body is axially disposed step counter sink, step counter sink packet
Include first order hole and the second level hole of coaxial communication, the aperture in first order hole is less than the aperture in second level hole, and first order hole with
The screwed hole of centre coaxial communication of nut body；The first coil portion is located in first order hole, second coil part
In the hole of the second level.
Further, it is provided with the position limiting structure coordinated with limit protrusion in the side wall surface of the nut body；The limit
Bit architecture is limit hole, limiting slot or limit card block, and limit protrusion coordinates with position limiting structure, and limit protrusion can be in position limiting structure
Inner circumferential rotates, and the extreme position of rotation is limited by position limiting structure.Position limiting structure limits the rotational angle of first coil portion,
When reaching the extreme position of rotation, position limiting structure can push first coil, it is allow more convenient will to prevent in dismounting
Loose nut is screwed out from screw rod.
Further, second coil part is wound in regular polygon, the second level hole for accommodating the second coil part
Pass be identical regular polygon hole.Regular polygon symmetrical configuration, easy for installation, the effect of power is more stable and average；It is logical
The second coil part is wound using regular hexagon in the case of often, and the pass in second level hole is regular hexagon.
Further, the internal diameter of the first coil portion is more than or equal to the diameter of thread of screwed hole of centre, first coil portion
Outer diameter be less than or equal to screwed hole of centre Major Diam；The helical angle of first coil portion is more than or equal to the spiral of screwed hole of centre
Angle.The benefit being arranged in this way is to increase the enclasping force between first coil portion and bolt or screw rod；Bolt or screw rod rotation simultaneously
When, first coil portion is compressed axially, and generates axial obstruction power, the obstruction power can increase bolt or screw flight tooth with
Extruding force between the thread of nut body, to increase the tightness degree of screw-thread fit.
Further, it is provided in the second level hole and the retaining knot that axis is moved out occurs for limiting spiral spring piece
Structure；The backing stop structure includes the circumferentially uniformly distributed flange of multiple inner hole walls along second level hole, axis of the flange towards second level hole
The heart extends, and has gap with one end of spiral spring piece or be in direct contact；Or the backing stop structure is to be arranged in the second level
Baffle ring in hole, the internal diameter of baffle ring are less than the maximum gauge of the second coil part.
Backing stop structure pushes against spiral spring piece, prevents spiral spring piece from being dropped out out of stepped hole, when spiral spring piece occurs
When being compressed axially, impetus of the backing stop structure as spiral spring piece helps spiral spring piece to generate axial obstruction power.
Explanation is described to this nut from structure in the above content, is now explained to the operation principle of nut
It is bright：
When specifically used, nut body is socketed on bolt or screw rod, and gasket contacts and pushes against workpiece.Work as nut body
When the trend loosened, as has the tendency that rotation relative to screw rod, because the angle of inclination of boss and the contact surface of convex block is more than
The helical angle of nut body screwed hole of centre, so when there is the opposite sliding of generation between the boss and the convex block of gasket of nut body
Trend when, axially opposed separate trend is generated between gasket and nut body；Workpiece and gasket are abutting state at this time,
Axial displacement can not occur for gasket, also can not opposite piece rotation, and between nut body and bolt or screw flight tooth
In the state for squeezing engagement, so then the frictional force between nut and screw rod will therewith increase with the enhancing of rotation trend；
Nut also needs to the power for overcoming the obstruction pine of spiral spring piece to move back simultaneously, and the effect that dual obstruction pine moves back power makes nut body phase
It does not rotate to screw rod, that is, has achieved the effect that prevent nut loosening.
At the same time, when nut body has rotation trend, spiral spring piece generation reverses the trend and compresses trend, reverses
Trend and compression trend all have the effect for obstructing nut body rotation, promote anti-loosing effect to a certain extent.
Beneficial effects of the present invention are：
1. the present invention is provided with spiral spring piece and gasket on nut body, pass through the dual of spiral spring piece and gasket
Limitation has achieved the effect that prevent from loosening, simple in structure, and it is convenient to realize.
2. being provided with helicoid on the gasket that the present invention is arranged, the position lifting of helicoid generation and supporting for secure fit
It touches, nut body can be compressed in the axial direction, achieved the effect that locking.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings only shows the section Example of the present invention, therefore is not to be taken as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the schematic cross-sectional view when present invention faces.
Fig. 2 is the schematic cross-sectional view that the present invention connect cooperation with screw rod.
Structural schematic diagram when Fig. 3 present invention overlooks.
Fig. 4 is structural schematic diagram when nut body is faced.
Fig. 5 is structural schematic diagram when spiral spring piece is faced.
Fig. 6 is structural schematic diagram when spiral spring piece is overlooked.
Fig. 7 is structural schematic diagram when gasket is faced.
Fig. 8 is structural schematic diagram when gasket is overlooked.
In figure, the meaning of each label is：1- nut bodies；101- screwed hole of centre；102- spacer grooves；102a- boss；
The second level 103- hole；104- position limiting structures；105- first order hole；106- backing stop structures；2- spiral spring pieces；The second coils of 201-
Portion；202- first coil portion；203- limit protrusions；3- gaskets；301- convex blocks；302- blocks.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment does further explaination to the present invention.
Embodiment 1：
As shown in Fig. 1~Fig. 3 and Fig. 7, Fig. 8, present embodiment discloses embedding spring formula double anti-loosing nuts, including nut
The spiral spring piece 2 in nut body upper end is arranged in ontology 1, and the gasket 3 in nut body lower end is arranged.Specifically, described
Nut body lower face be provided with connection nut body screwed hole of centre 101 spacer groove 102, the slot bottom of spacer groove is by circle
Be evenly equipped with card slot week, the slot bottom of spacer groove is divided into multiple boss 102a by card slot, the top end surface of boss be clinoplain or
Curved inclined surface, and the inclination angle of top end surface is more than the helical angle of screwed hole of centre；The gasket is circular ring shape and is located at gasket
In slot, the internal diameter of gasket is more than or equal to screwed hole of centre Major Diam；One side end face of gasket is equipped with and is engaged with boss
Convex block 301, convex block and the contact surface of boss are corresponding clinoplain or curved inclined surface, and the inclination angle of contact surface and boss top
The inclination angle of portion's top end surface is equal；Block 302 is additionally provided between adjacent two convex block, the height of block is more than the maximum height of convex block
Degree；When boss is matched with bump contact merges relative rotation, block is caught in card slot and is moved in card slot；When block and card slot
When side wall surface contacts, boss reaches the extreme position of relative rotation with convex block block.
As shown in figure 4, the nut body used in the present embodiment is hex nut.
In the present embodiment, the top end surface of the boss is helicoid, and the helical angle of helicoid is more than screwed hole of centre
Helical angle；It is helicoid with the contact surface of boss on the convex block, the helical angle of the helicoid is equal to boss top end surface
Helical angle.When nut body and gasket relatively rotate, the opposite sliding of helicoid between boss and convex block, and generate crowded
Pressure and promotion, make nut body and gasket be located remotely from each other in the axial direction, according to this action principle, can increase nut body and screw rod
Or the extruding force of thread achievees the effect that locking to increase the frictional force between screw thread between bolt.
Another side end face of the gasket protrudes the lower face of nut body or is flushed with the lower face of nut body.Usually
Set the end face to plane, and for increasing friction force, which is not generally smooth surface, or is increased centainly to increase friction
Striated structure.It is set as plane and is convenient for uniform force, improve the roughness in the face, it is tight convenient for the contact between gasket and workpiece
It is close, it is difficult to opposite sliding occur.
As shown in Figure 5, Figure 6, the spiral spring piece includes first coil portion 202 and the second coil part 201, the second line
Circle portion is coaxially sleeved on outside first coil portion；One end of first coil portion is connected with one end of the second coil part, first coil portion
Free end be provided with outwardly extending limit protrusion 203, the rounded winding of first coil portion, second coil part
It is wound in polygon.First coil portion carries out coiling cooperation with the screw thread of screw rod or bolt, when screw rod or bolt rotation, drives
First coil portion rotates and generates twisting resistance, which resists bolt or screw rod rotation, can reach locking to a certain extent
Effect.
The first coil portion is wound according to isometrical helix.Isometrical helix can on axial distance bigger
Coordinate with screw rod or bolt to degree, and generates the twisting resistance of bigger.
The upper surface of the nut body is axially disposed, and to have step counter sink, step counter sink include coaxial communication
First order hole 105 and second level hole 103, the aperture in first order hole be less than the aperture in second level hole, and first order hole and nut
The screwed hole of centre coaxial communication of ontology；The first coil portion is located in first order hole, and second coil part is located at
In the hole of the second level.
The position limiting structure 104 coordinated with limit protrusion is provided in the side wall surface of the nut body；The position limiting structure
To use limit hole, the limit protrusion to stretch into limit hole, and displacement in the range of limit hole limits.
Limit protrusion coordinates with position limiting structure, and limit protrusion can be rotated in position limiting structure inner circumferential, the extreme position of rotation
It is limited by position limiting structure.Position limiting structure limits the rotational angle of first coil portion, and the effect of position limiting structure is in nut
It when dismounting, prevents spiral spring piece power from infinitely increasing, damages spiral spring piece；Simultaneously also allow for nut in certain force value into
Row dismounting.
Second coil part is wound in regular polygon, and the pass in the second level hole for accommodating the second coil part is phase
Same regular polygon hole.Regular polygon symmetrical configuration, easy for installation, the effect of power is more stable and average.
Preferable scheme is that, the second coil part is wound using regular hexagon, and the pass in second level hole is in the present embodiment
Regular hexagon.
The internal diameter of the first coil portion is more than or equal to the diameter of thread of screwed hole of centre, and the outer diameter of first coil portion is less than
Equal to the Major Diam of screwed hole of centre；The helical angle of first coil portion is more than or equal to the helical angle of screwed hole of centre.It sets in this way
The benefit set is to increase the enclasping force between first coil portion and bolt or screw rod；When bolt or screw rod rotate simultaneously, First Line
Circle portion is compressed axially, and generates axial obstruction power, which can increase bolt or screw flight tooth and nut body
Thread between extruding force, to increase the tightness degree of screw-thread fit.
It is provided in the second level hole and the backing stop structure 106 that axis is moved out occurs for limiting spiral spring piece；Institute
It includes the circumferentially uniformly distributed flange of multiple inner hole walls along second level hole to state backing stop structure, and the axle center in flange towards second level hole is prolonged
It stretches, and has gap with one end of spiral spring piece or be in direct contact.
Backing stop structure pushes against spiral spring piece, prevents spiral spring piece from being dropped out out of stepped hole, when spiral spring piece occurs
When being compressed axially, impetus of the backing stop structure as spiral spring piece helps spiral spring piece to generate axial obstruction power.
Explanation is described to this nut from structure in the above content, is now explained to the operation principle of nut
It is bright：
When specifically used, nut body is socketed on bolt or screw rod, and gasket contacts and pushes against workpiece.Work as nut body
When the trend loosened, as has the tendency that rotation relative to screw rod, because the angle of inclination of boss and the contact surface of convex block is more than
The helical angle of nut body screwed hole of centre, so when there is the opposite sliding of generation between the boss and the convex block of gasket of nut body
When, axially opposed separate trend is generated between gasket and nut body；Workpiece and gasket are abutting state, gasket at this time
Axial displacement can not occur, also can not opposite piece rotation, and between nut body and bolt or screw flight tooth in squeeze
The state of engagement is pressed, so then the frictional force between nut and screw rod will therewith increase with the enhancing of rotation trend；Simultaneously
Nut also needs to the power for overcoming the obstruction pine of spiral spring piece to move back, and the effect that dual obstruction pine moves back power makes nut body with respect to spiral shell
Bar does not rotate, that is, has achieved the effect that prevent nut loosening.
At the same time, when nut body has rotation trend, spiral spring piece generation reverses the trend and compresses trend, reverses
Trend and compression trend all have the effect for obstructing nut body rotation, promote anti-loosing effect to a certain extent.
Embodiment 2：
Present embodiment discloses embedding spring formula double anti-loosing nuts, including nut body, and the spiral shell in nut body upper end is arranged
Spring part is revolved, the gasket in nut body lower end is set.Specifically, the nut body lower face is provided with connection nut
The slot bottom of the spacer groove of the screwed hole of centre of ontology, spacer groove divides the slot bottom of spacer groove by card slot, card slot is evenly distributed in
At multiple boss, the top end surface of boss is clinoplain or curved inclined surface, and the inclination angle of top end surface is more than center screw thread
The helical angle in hole；The gasket is circular ring shape and is located in spacer groove that the internal diameter of gasket is big more than or equal to screwed hole of centre screw thread
Diameter；One side end face of gasket is equipped with the convex block being engaged with boss, and convex block is corresponding clinoplain with the contact surface of boss
Or curved inclined surface, and the inclination angle of contact surface is equal with the inclination angle of top end surface at the top of boss；It is also set between adjacent two convex block
There are block, the height of block to be more than the maximum height of convex block；When boss is matched with bump contact merges relative rotation, block is caught in
Card slot simultaneously moves in card slot；When the side wall surface of block and card slot contacts, boss reaches the pole of relative rotation with convex block block
Extreme position.
Scheme in the present embodiment in embodiment 1 the difference is that：
In the present embodiment, the position limiting structure coordinated with limit protrusion is provided in the side wall surface of the nut body；It is described
Position limiting structure is limiting slot, and limiting slot position is opened in the recess of first order hole inner hole wall, and limit protrusion stretches into recess, and recessed
Fall into displacement in the range of limiting.Limit protrusion coordinates with position limiting structure, and limit protrusion can be rotated in position limiting structure inner circumferential, rotates
Extreme position limited by position limiting structure.Position limiting structure limits the rotational angle of first coil portion, the effect of position limiting structure
It is to prevent spiral spring piece power from infinitely increasing in the dismounting of nut, damages spiral spring piece；Nut is also allowed for certain simultaneously
Force value when dismantled.
The structure, connection relation and operation principle of other component are in the same manner as in Example 1 in the present embodiment, herein just not
It repeats again.
Embodiment 3：
Present embodiment discloses embedding spring formula double anti-loosing nuts, including nut body, and the spiral shell in nut body upper end is arranged
Spring part is revolved, the gasket in nut body lower end is set.Specifically, the nut body lower face is provided with connection nut
The slot bottom of the spacer groove of the screwed hole of centre of ontology, spacer groove divides the slot bottom of spacer groove by card slot, card slot is evenly distributed in
At multiple boss, the top end surface of boss is clinoplain or curved inclined surface, and the inclination angle of top end surface is more than center screw thread
The helical angle in hole；The gasket is circular ring shape and is located in spacer groove that the internal diameter of gasket is big more than or equal to screwed hole of centre screw thread
Diameter；One side end face of gasket is equipped with the convex block being engaged with boss, and convex block is corresponding clinoplain with the contact surface of boss
Or curved inclined surface, and the inclination angle of contact surface is equal with the inclination angle of top end surface at the top of boss；It is also set between adjacent two convex block
There are block, the height of block to be more than the maximum height of convex block；When boss is matched with bump contact merges relative rotation, block is caught in
Card slot simultaneously moves in card slot；When the side wall surface of block and card slot contacts, boss reaches the pole of relative rotation with convex block block
Extreme position.
Scheme in the present embodiment in embodiment 1 the difference is that：
In the present embodiment, the position limiting structure coordinated with limit protrusion is provided in the side wall surface of the nut body；It is described
Position limiting structure is limit card block, and the limit card block is the block-shaped protrusion of two longitudinal directions, and it is convex that limit protrusion is located at two bulks
Between rising, the extreme position of displacement receives the limitation of two block-shaped protrusions.Limit protrusion and position limiting structure coordinate, and limit protrusion can be
Position limiting structure inner circumferential rotates, and the extreme position of rotation is limited by position limiting structure.Position limiting structure limits first coil portion
Rotational angle, the effect of position limiting structure are to prevent spiral spring piece power from infinitely increasing in the dismounting of nut, damage helical spring
Part；Simultaneously nut is also allowed for be dismantled in certain force value.
The structure, connection relation and operation principle of other component are in the same manner as in Example 1 in the present embodiment, herein just not
It repeats again.
Embodiment 4：
Present embodiment discloses embedding spring formula double anti-loosing nuts, including nut body, and the spiral shell in nut body upper end is arranged
Spring part is revolved, the gasket in nut body lower end is set.Specifically, the nut body lower face is provided with connection nut
The slot bottom of the spacer groove of the screwed hole of centre of ontology, spacer groove divides the slot bottom of spacer groove by card slot, card slot is evenly distributed in
At multiple boss, the top end surface of boss is clinoplain or curved inclined surface, and the inclination angle of top end surface is more than center screw thread
The helical angle in hole；The gasket is circular ring shape and is located in spacer groove that the internal diameter of gasket is big more than or equal to screwed hole of centre screw thread
Diameter；One side end face of gasket is equipped with the convex block being engaged with boss, and convex block is corresponding clinoplain with the contact surface of boss
Or curved inclined surface, and the inclination angle of contact surface is equal with the inclination angle of top end surface at the top of boss；It is also set between adjacent two convex block
There are block, the height of block to be more than the maximum height of convex block；When boss is matched with bump contact merges relative rotation, block is caught in
Card slot simultaneously moves in card slot；When the side wall surface of block and card slot contacts, boss reaches the pole of relative rotation with convex block block
Extreme position.
Scheme in the present embodiment in embodiment 1 the difference is that：
In the present embodiment or the backing stop structure is the baffle ring being arranged in the hole of the second level, and the internal diameter of baffle ring is less than
The maximum gauge of second coil part.
The structure, connection relation and operation principle of other component are in the same manner as in Example 1 in the present embodiment, herein just not
It repeats again.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific implementation mode should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (10)
1. the spiral spring piece (2) in nut body upper end is arranged in embedding spring formula double anti-loosing nut, including nut body (1), if
Set the gasket (3) in nut body lower end；It is characterized in that：The nut body is equipped with screwed hole of centre (101) in an axial direction,
The lower face of nut body is provided with the spacer groove (102) of connection screwed hole of centre (101), and the slot bottom of spacer groove presses circumference uniform distribution
There are card slot, card slot that the slot bottom of spacer groove is divided into multiple boss (102a), the top end surface of boss is clinoplain or inclination
Curved surface, and the inclination angle of top end surface is more than the helical angle of screwed hole of centre；The gasket is circular ring shape and is located in spacer groove,
The internal diameter of gasket is more than or equal to screwed hole of centre Major Diam；One side end face of gasket is equipped with the convex block being engaged with boss
(301), convex block is corresponding clinoplain or curved inclined surface with the contact surface of boss, and at the top of the inclination angle of contact surface and boss
The inclination angle of top end surface is equal；Block (302) is additionally provided between adjacent two convex block, the height of block is more than the maximum height of convex block
Degree；When boss is matched with bump contact merges relative rotation, block is caught in card slot and is moved in card slot；When block and card slot
When side wall surface contacts, boss reaches the extreme position of relative rotation with convex block block.
2. embedding spring formula double anti-loosing nut according to claim 1, it is characterised in that：The top end surface of the boss is spiral shell
Radial facing, the helical angle of helicoid are more than the helical angle of screwed hole of centre；On the convex block with the contact surface of boss be helicoid, should
The helical angle of helicoid is equal to the helical angle of boss top end surface.
3. embedding spring formula double anti-loosing nut according to claim 1, it is characterised in that：Another side end face of the gasket is prominent
Go out the lower face of nut body or is flushed with the lower face of nut body.
4. embedding spring formula double anti-loosing nut according to claim 1, it is characterised in that：The spiral spring piece includes the
One coil part (202) and the second coil part (201), the second coil part are coaxially sleeved on outside first coil portion；First coil portion
One end is connected with one end of the second coil part, and the free end of first coil portion is provided with outwardly extending limit protrusion (203),
The rounded winding of first coil portion, second coil part are wound in polygon.
5. embedding spring formula double anti-loosing nut according to claim 4, it is characterised in that：The first coil portion according to etc.
Diameter helix is wound.
6. embedding spring formula double anti-loosing nut according to claim 4 or 5, it is characterised in that：The upper end of the nut body
Face is axially disposed, and to have step counter sink, step counter sink include first order hole (105) and the second level hole of coaxial communication
And the screwed hole of centre coaxial communication in first order hole and nut body (103),；The first coil portion is located at first order hole
Interior, second coil part is located in the hole of the second level.
7. embedding spring formula double anti-loosing nut according to claim 1, it is characterised in that：In the side wall surface of the nut body
It is provided with the position limiting structure (104) coordinated with limit protrusion.
8. embedding spring formula double anti-loosing nut according to claim 7, it is characterised in that：The position limiting structure be limit hole,
Limiting slot or limit card block, limit protrusion coordinate with position limiting structure, and limit protrusion can be rotated in position limiting structure inner circumferential, rotate
Extreme position limited by position limiting structure.
9. embedding spring formula double anti-loosing nut according to claim 1, it is characterised in that：Second coil part is in just more
The pass of side shape winding, the second level hole for accommodating the second coil part is identical regular polygon hole.
10. embedding spring formula double anti-loosing nut according to claim 1, it is characterised in that：It is arranged in the second level hole
It is useful for limitation spiral spring piece and the backing stop structure (106) that axis is moved out occurs；The backing stop structure includes multiple along the second level
The axle center of the circumferentially uniformly distributed flange of the inner hole wall in hole, flange towards second level hole extends；Or the backing stop structure is setting
Baffle ring in the hole of the second level, the internal diameter of baffle ring are less than the maximum gauge of the second coil part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779275.8A CN108561409A (en) | 2018-07-16 | 2018-07-16 | Embedding spring formula double anti-loosing nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779275.8A CN108561409A (en) | 2018-07-16 | 2018-07-16 | Embedding spring formula double anti-loosing nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108561409A true CN108561409A (en) | 2018-09-21 |
Family
ID=63555487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779275.8A Pending CN108561409A (en) | 2018-07-16 | 2018-07-16 | Embedding spring formula double anti-loosing nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561409A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577733A (en) * | 2020-05-20 | 2020-08-25 | 海盐宏诚精工科技有限公司 | Self-tapping locking type thin fixing screw |
| CN111853037A (en) * | 2020-07-22 | 2020-10-30 | 同济大学 | Check bolt fastener |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654475A (en) * | 2017-10-24 | 2018-02-02 | 西藏深元投资有限公司 | Stop nut and locking fastening assembly |
| CN108071656A (en) * | 2016-11-16 | 2018-05-25 | 孙愉后 | Lock washer component |
-
2018
- 2018-07-16 CN CN201810779275.8A patent/CN108561409A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071656A (en) * | 2016-11-16 | 2018-05-25 | 孙愉后 | Lock washer component |
| CN107654475A (en) * | 2017-10-24 | 2018-02-02 | 西藏深元投资有限公司 | Stop nut and locking fastening assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577733A (en) * | 2020-05-20 | 2020-08-25 | 海盐宏诚精工科技有限公司 | Self-tapping locking type thin fixing screw |
| CN111577733B (en) * | 2020-05-20 | 2021-12-14 | 海盐宏诚精工科技有限公司 | Self-tapping locking type thin fixing screw |
| CN111853037A (en) * | 2020-07-22 | 2020-10-30 | 同济大学 | Check bolt fastener |
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Application publication date: 20180921 |