CN108533603B - Self-locking bolt - Google Patents
Self-locking bolt Download PDFInfo
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- CN108533603B CN108533603B CN201810669368.5A CN201810669368A CN108533603B CN 108533603 B CN108533603 B CN 108533603B CN 201810669368 A CN201810669368 A CN 201810669368A CN 108533603 B CN108533603 B CN 108533603B
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- Prior art keywords
- bolt
- elastic module
- liquid storage
- sliding block
- rectangular
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- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 49
- 238000003860 storage Methods 0.000 claims description 44
- 239000013556 antirust agent Substances 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 108010013296 Sericins Proteins 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Images
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
- F16B39/38—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 with a second part of the screw-thread which may be resiliently mounted
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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
- F16B33/00—Features common to bolt and nut
- F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
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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
- F16B35/041—Specially-shaped shafts
- F16B35/044—Specially-shaped ends
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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
- F16B39/24—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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Actuator (AREA)
Abstract
The invention belongs to the technical field of fasteners, and particularly relates to a self-locking bolt which comprises a first bolt, an elastic module and a second bolt; a first threaded hole and a second threaded hole are formed in the first bolt, the first threaded hole is located in the first bolt, the second threaded hole is located at the lower end of the first bolt, and the first bolt is an outer hexagon bolt; the elastic module is positioned in the middle of the first bolt, the elastic module is made of spring steel, the elastic module is a part of the first bolt, and the first bolt is used for enabling the first bolt to be self-locked; the second bolt is a hexagon socket head cap screw, the second bolt is fixed inside the first bolt through the first threaded hole, the lower end of the second bolt is in contact with the upper end of the elastic module, and the second bolt is used for extruding the elastic module.
Description
Technical Field
The invention belongs to the technical field of fasteners, and particularly relates to a self-locking bolt.
Background
The fastening piece composed of the bolt and the nut is widely used for connecting parts in machine tools, automobiles, agricultural machinery and other mechanical products, standard threads are frequently loosened by themselves under the condition of severe vibration due to inherent defects of the standard threads, so that the connected parts are loosened, the functions of machine equipment are lost if the standard threads are light, and even safety accidents are caused if the standard threads are serious. The existing methods for solving the problem of loosening of the threaded fastener mainly comprise the following steps: the nylon or elastic locking plate is embedded, the backstop pin is penetrated, and the backstop elastic cushion is additionally arranged. The method generally has the defects of poor anti-loosening effect, complex manufacturing or assembling process, high use cost and poor reusability.
Patent document 1: a self-locking bolt, application No.: 2009202812342
Patent document 2: a pull type self-locking bolt, application number: 2011204573413
In the patent document 1, the wedge-shaped inclined surface is arranged at the root of the external thread, and each tooth tip of the internal thread in the screwing length of the internal thread is uniformly and tightly pressed against the wedge-shaped inclined surface at the root of the external thread, so that a normal force which is much larger than that of a standard thread is generated, and the friction force between the internal thread and the external thread is naturally and greatly increased by the great increase of the normal force, so that the aim of preventing the connection thread from loosening is fulfilled; the invention considers too much surface and does not consider the difficulty of screwing the bolt into the workpiece, the invention increases the difficulty of screwing the bolt into the workpiece, the abrasion between the bolt and the workpiece is increased when the bolt enters the workpiece, and the bolt entering the workpiece can not be tightly propped against the wedge-shaped inclined surface at the bottom of the external thread under the abrasion condition, thereby failing to play the anti-loosening function.
In the patent document 2, another bolt having a nut as a tapered block is provided at the bottom of the bolt, and the bottom of the bolt is expanded and deformed by the tapered block, thereby achieving the anti-loosening function; after the anti-loosening function is achieved, the bolt cannot be disassembled, so that the difficulty in repairing equipment using the bolt is increased.
Disclosure of Invention
In order to make up for the defects of the prior art, the self-locking bolt provided by the invention has the advantages that the elastic module is extruded and deformed through the mutual matching of the elastic module, the bolt II, the spring gasket and the machine meter screw, and the thread of the deformed elastic module is combined with the internal thread of a workpiece more tightly, so that the self-locking effect is realized; according to the invention, the liquid storage cavity is arranged in the elastic module, and the antirust agent in the liquid storage cavity plays an antirust role in the thread of the bolt; according to the invention, the third bolt is arranged and matched with the elastic module to increase the self-locking effect, and meanwhile, the arc-shaped pit arranged on the third bolt, the first sliding block and the second sliding block are matched with each other, so that the third bolt is tightly adsorbed on a workpiece.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a self-locking bolt which comprises a first bolt, an elastic module and a second bolt; the first bolt is internally provided with a first threaded hole and a second threaded hole, the first threaded hole is positioned at the upper end of the first bolt, the second threaded hole is positioned at the lower end of the first bolt, the first bolt is an outer hexagon bolt, the upper surface of a nut of the first bolt is provided with a circular hole, the circular hole is communicated with the first threaded hole, and the upper end of the circular hole is provided with threads; the elastic module is positioned in the middle of the first bolt, the elastic module is made of spring steel, the elastic module is a part of the first bolt, and the elastic module is used for enabling the first bolt to be self-locked; the second bolt is a hexagon socket head cap screw, the second bolt is fixed inside the first bolt through the first threaded hole, the lower end of the second bolt is in contact with the upper end of the elastic module, and the second bolt is used for extruding the elastic module. During operation, the first bolt is screwed into a workpiece, and after the first bolt is screwed to be dead, the second bolt is screwed to be dead by the hexagon socket wrench, so that the bottom of the second bolt screw extrudes the elastic module positioned in the first bolt, the elastic module deforms, the thread of the deformed elastic module is tightly attached to the inner thread of the workpiece, and the condition that the connection between the bolt and the workpiece cannot be loosened is ensured.
The elastic module comprises a liquid storage cavity and a flow guide channel; the liquid storage cavity is positioned inside the elastic module and used for storing an antirust agent; the number of the flow guide channels is multiple, one end of each flow guide channel is communicated with the liquid storage cavity, the other end of each flow guide channel penetrates through the inside of the elastic module to be communicated with the outside, and each flow guide channel is used for guiding the antirust agent in the liquid storage cavity to the screw thread of the first bolt. During operation, the second bolt extrudes the elastic module, so that the antirust agent in the liquid storage cavity of the elastic module flows into the first bolt and the thread contacted with the workpiece through the flow guide channel, and the antirust effect is achieved on the bolts.
A spring gasket and a screw are further arranged in the bolt I; the bottom surface of the spring gasket is contacted with the upper end of the second bolt; the screw is fixed at the upper end of the first bolt through threads in a circular hole at the upper end of the first bolt, and the screw is used for compressing the spring gasket and the second bolt. During operation, lay the spring washer in the upper end of bolt two, compress tightly the spring washer with the machine meter screw afterwards, the spring washer compresses tightly bolt two for bolt two can not take place not hard up.
A third bolt and a liquid storage ring are further arranged inside the first bolt; the third bolt is fixed at the lower end of the first bolt through the second threaded hole, the third bolt is an outer hexagon bolt, the bottom of a screw rod of the third bolt is in contact with the elastic module, the turning direction of the third bolt is the same as that of the first thread, and the third bolt is used for preventing the first bolt from loosening; the liquid storage ring is located between the first bolt and the third bolt, a liquid discharge hole is formed in one side, close to the axis, of the liquid storage ring, and the liquid storage ring is used for storing an antirust agent. During operation, the liquid storage ring and the elastic module are extruded along with the shaking of the workpiece by the third bolt, the stored antirust agent is discharged by the liquid storage ring, the area where the second thread is located is antirust, and the elastic module at the moment is equivalent to a spring gasket for the third bolt and can play a role in preventing looseness.
The third bolt is also provided with a rubber film, a first sliding block and a second sliding block; the top end of the bolt triple nut is provided with an arc-shaped pit, the top end of the bolt triple nut is circumferentially provided with a plurality of rectangular grooves around the arc-shaped pit, rectangular slideways are circumferentially arranged inside the bolt triple nut, the number of the rectangular slideways is the same as that of the rectangular grooves, one end of each rectangular slideway is communicated with the arc-shaped pit, and the other end of each rectangular slideway is communicated with the rectangular groove; the rubber film is fixed in the arc-shaped pit and is of an arc-shaped structure, and the arc-shaped pit is sealed by the rubber film; one end of the first sliding block penetrates through the rectangular slideway and is fixed on the circular arc surface of the rubber film, and the other end of the first sliding block is connected with the rectangular groove; the second sliding block is connected in the rectangular groove through a spring, the rectangular groove can be sealed by the second sliding block, the second sliding block can slide in the rectangular groove, and the second sliding block is used for pushing the first sliding block to slide in the rectangular slide way. When the screw is in operation, the first bolt extrudes the second sliding block in the process of screwing the workpiece, the second sliding block slowly retracts into the rectangular groove, the second sliding block pushes the first sliding block to extrude the rubber film, and when the second sliding block is completely arranged in the rectangular groove, the third bolt is firmly adsorbed on the workpiece under the action of negative pressure.
The invention has the following beneficial effects:
1. according to the invention, the bolt I, the bolt II, the elastic module, the spring gasket and the screw are arranged, and the bolt II extrudes the elastic module to deform the elastic module, so that the thread of the elastic module on the bolt I is tightly attached to the internal thread of a workpiece, and the screw and the spring gasket can tightly press the bolt II, thereby enabling the bolt to have a self-locking function; the elastic module is made of spring steel, and the spring steel can restore the original shape under the condition of not bearing pressure, so that the bolt is easy to disassemble while having a self-locking function, and the maintenance of equipment using the bolt is facilitated.
2. According to the invention, the liquid storage cavity is arranged in the elastic module, and the antirust agent in the liquid storage cavity can be used for carrying out antirust treatment on the bolt, so that the service life of the bolt is prolonged.
3. According to the invention, the third bolt is arranged, and the rubber film arranged on the third bolt, the first sliding block and the second sliding block are matched with each other, so that the third bolt can be tightly adsorbed on a workpiece, the self-locking function of the bolt is enhanced, and meanwhile, under the action of the third bolt, the elastic module is equivalent to a spring gasket, so that the self-locking function of the bolt is further enhanced.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
in the figure: the device comprises a first bolt 1, an elastic module 2, a second bolt 3, a spring gasket 4, a machine meter screw 5, a third bolt 6, a liquid storage ring 7, a liquid storage cavity 21, a flow guide channel 22, a rubber film 61, a first sliding block 62 and a second sliding block 63.
Detailed Description
The structure of a self-locking bolt according to an embodiment of the present invention will be described below with reference to fig. 1 to 2.
As shown in fig. 1, the self-locking bolt of the present invention comprises a first bolt 1, an elastic module 2 and a second bolt 3; a first threaded hole and a second threaded hole are formed in the first bolt 1, the first threaded hole is located in the first bolt 1, the second threaded hole is located at the lower end of the first bolt 1, the first bolt 1 is an outer hexagon bolt, a circular hole is formed in the upper surface of a nut of the first bolt 1, the circular hole is communicated with the first threaded hole, and threads are formed in the upper end of the circular hole; the elastic module 2 is positioned in the middle of the bolt I1, the elastic module 2 is made of spring steel, the elastic module 2 is a part of the bolt I1, and the elastic module 2 is used for enabling the bolt to be self-locked; the second bolt 3 is a hexagon socket head cap screw, the second bolt 3 is fixed inside the first bolt 1 through the first threaded hole, the lower end of the second bolt 3 contacts with the upper end of the elastic module 2, and the second bolt 3 is used for extruding the elastic module 2. During operation, the first bolt 1 is screwed into a workpiece, the second bolt 3 is screwed by the hexagon socket wrench after the first bolt 1 is screwed, the elastic module 2 located in the first bolt 1 is extruded at the bottom of the screw rod of the second bolt 3, the elastic module 2 is deformed, the thread of the deformed elastic module 2 is tightly attached to the inner thread of the workpiece, and connection between the bolt and the workpiece is guaranteed not to be loosened.
As shown in fig. 1, the elastic module 2 includes a liquid storage cavity 21 and a flow guide channel 22; the liquid storage cavity 21 is positioned inside the elastic module 2, and the liquid storage cavity 21 is used for storing an antirust agent; the quantity of the guide channels 22 is multiple, one end of each guide channel 22 is communicated with the liquid storage cavity 21, the other end of each guide channel 22 penetrates through the interior of the elastic module 2 to be communicated with the outside, and the guide channels 22 are used for guiding the antirust agent in the liquid storage cavity 21 to the threads of the bolt I1. During operation, the second bolt 3 extrudes the elastic module 2, so that the antirust agent in the liquid storage cavity 21 of the elastic module 2 flows into the thread part of the first bolt 1, which is in contact with a workpiece, through the flow guide channel 22, and the first bolt 1 is antirust.
As shown in fig. 1, a spring washer 4 and a machine meter screw 5 are further arranged in the bolt 1; the bottom surface of the spring gasket 4 is contacted with the upper end of the second bolt 3; the machine meter screw 5 is fixed at the upper end of the bolt I1 through threads in a circular hole at the upper end of the bolt I1, and the machine meter screw 5 is used for pressing the spring gasket 4 and the bolt II 3. During operation, lay spring washer 4 in the upper end of second bolt 3, compress tightly spring washer 4 with machine rice screw 5 afterwards, spring washer 4 compresses tightly second bolt 3 for second bolt 3 can not take place to become flexible.
As shown in fig. 1, a third bolt 6 and a liquid storage ring 7 are further arranged inside the first bolt 1; the third bolt 6 is fixed at the lower end of the first bolt 1 through the second threaded hole, the third bolt 6 is an outer hexagon bolt, the bottom of a screw rod of the third bolt 6 is in contact with the elastic module 2, the turning direction of the third bolt 6 is the same as that of the first thread, and the third bolt 6 is used for preventing the first bolt 1 from loosening; the liquid storage ring 7 is located between the first bolt 1 and the third bolt 6, a liquid discharge hole is formed in one side, close to the axis, of the liquid storage ring 7, and the liquid storage ring 7 is used for storing an antirust agent. During operation, the third bolt 6 extrudes the liquid storage ring 7 and the elastic module 2 along with the shaking of the workpiece, the stored antirust agent is discharged by the liquid storage ring 7, the area where the second thread is located is antirust, and the elastic module 2 at the moment is equivalent to a spring washer for the third bolt 6 and can play a role in preventing looseness.
As shown in fig. 1 and 2, a rubber film 61, a first sliding block 62 and a second sliding block 63 are further arranged on the third bolt 6; the top end of the nut of the bolt III 6 is provided with an arc-shaped pit, the top end of the nut of the bolt III 6 is circumferentially provided with a plurality of rectangular grooves around the arc-shaped pit, a rectangular slideway is circumferentially arranged inside the nut of the bolt III 6, the number of the rectangular slideways is the same as that of the rectangular grooves, one end of the rectangular slideway is communicated with the arc-shaped pit, and the other end of the rectangular slideway is communicated with the rectangular grooves; the rubber film 61 is fixed in the arc-shaped pit, the rubber film 61 is of an arc-shaped structure, and the arc-shaped pit is sealed by the rubber film 61; one end of the first sliding block 62 penetrates through the rectangular slideway to be fixed on the arc surface of the rubber film 61, and the other end of the first sliding block 62 is connected with the rectangular groove; the second sliding block 63 is connected in the rectangular groove through a spring, the rectangular groove can be sealed by the second sliding block 63, the second sliding block 63 can slide in the rectangular groove, and the second sliding block 63 is used for pushing the first sliding block 62 to slide in the rectangular slide way. When the screw bolt works, the first bolt 1 extrudes the second sliding block 63 in the process of screwing the workpiece, the second sliding block 63 slowly retracts into the rectangular groove, the second sliding block 63 pushes the first sliding block 62 to extrude the rubber film 61, and when the second sliding block 63 is completely arranged in the rectangular groove, the third bolt 6 is firmly adsorbed on the workpiece under the action of negative pressure.
The specific working process is as follows: when the bolt I1 is screwed into a workpiece, after the bolt I1 is screwed, a bolt II 3 is screwed by an inner hexagonal wrench, so that the bottom of a screw rod of the bolt II 3 extrudes an elastic module 2 positioned in the bolt I1, the elastic module 2 is deformed, and the thread of the deformed elastic module 2 is tightly attached to the inner thread of the workpiece, so that the connection between the bolt and the workpiece is ensured not to be loosened; the elastic module 2 discharges the antirust agent in the liquid storage cavity 21 under the extrusion action of the second bolt 3, and the first bolt 1 is subjected to antirust treatment; then, the second bolt 3 is fixed inside the first bolt 1 through a machine meter screw 5 and a spring washer 4, so that the first bolt 1 cannot be loosened; the third bolt 6 positioned at the bottom of the first bolt 1 extrudes the liquid storage ring 7 and the elastic module 2 along with the shaking of the workpiece, the stored antirust agent is discharged by the liquid storage ring 7, the area where the second thread is located is antirust, and the elastic module 2 at the moment is equivalent to a spring gasket for the third bolt 6 and can play a role in preventing looseness. In the process, the bolt III 6 enters the workpiece along with the bolt I1, the sliding block II 63 on the bolt III 6 slowly retracts into the rectangular groove, the sliding block II 63 pushes the sliding block I62 to extrude the rubber film 61, and when the sliding block II 63 is completely arranged in the rectangular groove, the bolt III 6 is firmly adsorbed on the workpiece under the action of negative pressure.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
(A) In the above embodiment, the second bolt is prevented from loosening by the spring washer, but the second bolt is not limited to this, and the second bolt may be prevented from loosening by the wave washer.
(B) In the above-mentioned embodiment, the self-locking bolt is detachable bolt, and used liquid is the antirust agent in the stock solution chamber, prevents the bolt corrosion, but is not limited to this, and when the self-locking bolt was used in the place that does not need to dismantle, used liquid can be changed into the sericin in the stock solution chamber, and the sericin has improved this self-locking bolt's performance.
Industrial applicability
According to the invention, the self-locking bolt can smoothly realize the self-locking function in the workpiece, so that the self-locking bolt is useful in the technical field of fasteners.
Claims (1)
1. A self-locking bolt is characterized in that: the bolt comprises a first bolt (1), an elastic module (2) and a second bolt (3); a first threaded hole and a second threaded hole are formed in the first bolt (1), the first threaded hole is located at the upper end of the first bolt (1), the second threaded hole is located at the lower end of the first bolt (1), the first bolt (1) is an outer hexagon bolt, a circular hole is formed in the upper surface of a nut of the first bolt (1), the circular hole is communicated with the first threaded hole, and threads are formed in the upper end of the circular hole; the elastic module (2) is located in the middle of the bolt I (1), the elastic module (2) is made of spring steel, the elastic module (2) is a part of the bolt I (1), and the elastic module (2) is used for enabling the bolt to be self-locked; the second bolt (3) is a hexagon socket head cap screw, the second bolt (3) is fixed inside the first bolt (1) through the first threaded hole, the lower end of the second bolt (3) is in contact with the upper end of the elastic module (2), and the second bolt (3) is used for extruding the elastic module (2); wherein the content of the first and second substances,
the elastic module (2) comprises a liquid storage cavity (21) and a flow guide channel (22); the liquid storage cavity (21) is positioned inside the elastic module (2), and the liquid storage cavity (21) is used for storing an antirust agent; the number of the flow guide channels (22) is multiple, one end of each flow guide channel (22) is communicated with the liquid storage cavity (21), the other end of each flow guide channel (22) penetrates through the interior of the elastic module (2) to be communicated with the outside, and the flow guide channels (22) are used for guiding the antirust agent in the liquid storage cavities (21) to threads of the bolts I (1);
a third bolt (6) and a liquid storage ring (7) are also arranged in the first bolt (1); the third bolt (6) is fixed at the lower end of the first bolt (1) through the second threaded hole, the third bolt (6) is an outer hexagon bolt, the bottom of a screw rod of the third bolt (6) is in contact with the elastic module (2), the turning direction of the third bolt (6) is the same as that of the first thread, and the third bolt (6) is used for preventing the first bolt (1) from loosening; the liquid storage ring (7) is positioned between the first bolt (1) and the third bolt (6), a liquid discharge hole is formed in one side, close to the axis, of the liquid storage ring (7), and the liquid storage ring (7) is used for storing an antirust agent;
the third bolt (6) is also provided with a rubber film (61), a first sliding block (62) and a second sliding block (63); the top end of the nut of the bolt III (6) is provided with an arc-shaped pit, the top end of the nut of the bolt III (6) is provided with a plurality of rectangular grooves around the arc-shaped pit in the circumferential direction, rectangular slideways are circumferentially arranged inside the nut of the bolt III (6), the number of the rectangular slideways is the same as that of the rectangular grooves, one end of each rectangular slideway is communicated with the arc-shaped pit, and the other end of each rectangular slideway is communicated with the rectangular groove; the rubber film (61) is fixed in the arc-shaped pit, the rubber film (61) is of an arc-shaped structure, and the arc-shaped pit is sealed by the rubber film (61); one end of the first sliding block (62) penetrates through the rectangular slideway to be fixed on the arc surface of the rubber film (61), and the other end of the first sliding block (62) is connected with the rectangular groove; the second sliding block (63) is connected in the rectangular groove through a spring, the rectangular groove can be sealed by the second sliding block (63), the second sliding block (63) can slide in the rectangular groove, and the second sliding block (63) is used for pushing the first sliding block (62) to slide in the rectangular slide way;
a spring gasket (4) and a machine meter screw (5) are also arranged in the bolt I (1); the bottom surface of the spring gasket (4) is in contact with the upper end of the second bolt (3); the machine-meter screw (5) is fixed at the upper end of the bolt I (1) through a thread in a circular hole at the upper end of the bolt I (1), and the machine-meter screw (5) is used for pressing the spring gasket (4) and the bolt II (3);
when the bolt I (1) is screwed into a workpiece, after the bolt I (1) is screwed, a bolt II (3) is screwed by using an inner hexagonal wrench, so that the bottom of a screw rod of the bolt II (3) extrudes an elastic module (2) positioned in the bolt I (1), the elastic module (2) is deformed, and the thread of the deformed elastic module (2) is tightly attached to the internal thread of the workpiece, so that the bolt and the workpiece are prevented from being loosened; the elastic module (2) discharges the antirust agent in the liquid storage cavity (21) under the extrusion action of the second bolt (3) to perform antirust treatment on the first bolt (1); then, the second bolt (3) is fixed inside the first bolt (1) through a machine meter screw (5) and a spring gasket (4), so that the first bolt (1) cannot be loosened; the third bolt (6) positioned at the bottom of the first bolt (1) extrudes the liquid storage ring (7) and the elastic module (2) along with the shaking of the workpiece, the stored antirust agent is discharged by the liquid storage ring (7), the area where the second thread is located is rustproof, the elastic module (2) at the moment is equivalent to a spring gasket for the third bolt (6), and the anti-loosening effect can be achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669368.5A CN108533603B (en) | 2018-06-26 | 2018-06-26 | Self-locking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669368.5A CN108533603B (en) | 2018-06-26 | 2018-06-26 | Self-locking bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533603A CN108533603A (en) | 2018-09-14 |
| CN108533603B true CN108533603B (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810669368.5A Active CN108533603B (en) | 2018-06-26 | 2018-06-26 | Self-locking bolt |
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| Country | Link |
|---|---|
| CN (1) | CN108533603B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980172A (en) * | 2018-09-28 | 2018-12-11 | 无锡安欣达科技有限公司 | Anti-pry type Drive Rivet |
| CN109104020B (en) * | 2018-11-02 | 2021-08-10 | 徐州惠博机电科技有限公司 | Mounting rack with built-in control mechanism for motor |
| CN109519463B (en) * | 2018-11-14 | 2020-08-28 | 苏州剑派实业有限公司 | Self-locking bolt |
| CN110332205B (en) * | 2019-07-20 | 2020-12-01 | 浦江县恒川信息科技有限公司 | Stable form check bolt |
| CN110529472B (en) * | 2019-09-17 | 2021-01-01 | 河南四达电力设备股份有限公司 | Pressure fastener |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303973Y (en) * | 1997-06-09 | 1999-01-13 | 袁岭 | Anti-loose anti-rust screw-bolt |
| CN202597687U (en) * | 2012-01-11 | 2012-12-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Spring self-locking bolt plug |
| CN205001352U (en) * | 2015-08-14 | 2016-01-27 | 宁波宁力高强度紧固件有限公司 | Car check bolt |
| CN207454481U (en) * | 2017-11-27 | 2018-06-05 | 江苏瑞春标准件有限公司 | A kind of anti-drop bolt component |
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