WO1999019637A1 - Boulon dote d'un dispositif de stockage d'energie et d'autoverrouillage - Google Patents

Boulon dote d'un dispositif de stockage d'energie et d'autoverrouillage Download PDF

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Publication number
WO1999019637A1
WO1999019637A1 PCT/CN1997/000102 CN9700102W WO9919637A1 WO 1999019637 A1 WO1999019637 A1 WO 1999019637A1 CN 9700102 W CN9700102 W CN 9700102W WO 9919637 A1 WO9919637 A1 WO 9919637A1
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WO
WIPO (PCT)
Prior art keywords
nut
screw
spring
lock spring
engaged
Prior art date
Application number
PCT/CN1997/000102
Other languages
English (en)
Chinese (zh)
Inventor
Ming Yan
Original Assignee
Ming Yan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ming Yan filed Critical Ming Yan
Priority to PCT/CN1997/000102 priority Critical patent/WO1999019637A1/fr
Publication of WO1999019637A1 publication Critical patent/WO1999019637A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
    • 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

Definitions

  • the present invention belongs to the field of mechanical fastening members, and relates to a bolt with a self-locking energy storage device which can prevent loosening. Background technique
  • Bolts are the basic parts and connectors. Their large amount and wide range are well known. Its quality and performance have always been people's attention. Mechanical equipment is often in a high-speed operation and strong vibration working environment. Bolts that serve as the foundation for connection may often loosen and fall off. In the past, in order to prevent loosening, additional accessories such as spring washers, counter top nuts, split locks, and backstops, which have often been used, have proven to be inadequate for practical use after hundreds of years of use.
  • the purpose of the present invention is to provide a bolt with a self-locking energy storage device that can avoid the loosening of the bolt by itself and timely release energy storage when the bolt is worn or deformed.
  • the bolt uses a nut and a screw to self-lock and interlock. And a fastening mechanism that can store and release mechanical energy, and timely release the energy storage fastening device.
  • the present invention adopts the following technical solutions:
  • the invention uses the meshing relationship between the thread and the spring spiral to form a spiral self-locking and energy storage mechanism. It includes a screw that has a direct meshing relationship, is composed of an internal lock spring and an external torsion spring, and can mesh with the screw. Energy storage spring, nut, lower nut, and upper lock spring, middle lock spring, and lower lock spring that are engaged with each other.
  • the bottom of the screw is also provided with a chuck to prevent loosening; these components can only be tightened. Can't fall In the self-locking, interlocking, and interlocking system of the screw, once the loss of fastening force occurs due to wear, fatigue, and deformation, the reserve mechanical energy can be used to automatically tighten the screw in time to make up for the gap.
  • the bolt structure with the self-locking energy storage device of the present invention is as follows:
  • the bolt with a self-locking energy storage device of the present invention includes a screw and a nut that can be screwed with the screw, characterized in that the inner wall of the nut is engaged with an upper lock spring; the lower end of the nut is provided with a lateral unlocking hole, The upper end surface is provided with a fixing groove, one end of the upper lock spring is snapped into the fixing groove, and the other end is inserted into the unlocking hole.
  • the bolt is characterized in that the screw is formed into two parts with different diameters, the diameter of the lower end part of the screw is smaller, the smaller diameter part is engaged with a lock spring, and the threads of the two parts form a unified spiral.
  • the bolt is characterized in that the nut further includes a lower nut with the same internal thread, the lower nut is integrated with the nut, and the inner wall of the lower nut is engaged with a middle lock spring.
  • the bolt is characterized in that an energy storage spring is engaged on an outer diameter of the screw, and the energy storage spring includes an inner lock spring having a self-locking action and an outer torsion spring having a thrust action.
  • the bolt is characterized in that the lower end portion of the larger diameter portion of the screw is provided with an unlocking groove; the smaller diameter portion is engaged with the lower lock spring, and the fixed end of the lower lock spring is hooked on the screw In the fixed groove at the lower end, the movable end is inserted into the unlocking groove of the screw.
  • the bolt is characterized in that the inner wall of the nut is divided into upper and lower sections with different inner diameters, an upper section with a smaller inner diameter is engaged with the upper lock spring, and a lower section with a larger inner diameter is matched with an outer wall of the lower nut
  • the upper end of the nut is also provided with a blind hole for inserting the end of the energy storage spring.
  • the bolt is characterized in that the lower nut is a cap-shaped body with internal threads, the internal thread is a thread engaged with the middle lock spring, and an outer wall of the lower nut is cooperatively connected with the nut.
  • the upper end surface is provided with a fixing groove, and the flat nut of the lower nut is provided with an unlock?
  • the bolt is characterized in that one end of the middle lock spring is provided with a thick fixed end, which is locked in the fixing groove of the lower nut, and the movable end of the middle lock spring is inserted in the unlocking hole of the lower nut. .
  • the bolt is characterized in that a recessed hole is provided at the center of the bottom end surface of the screw, a chuck is inserted at the recessed hole, and a fixing groove at the lower end of the screw is located on the chuck.
  • the bolt is characterized in that the chuck is in a "convex" shape, an upper end is provided with a convex column matching the concave hole at the end of the screw, and a fixing groove for installing a lower lock spring is provided on the bottom surface.
  • the bolt is characterized in that the nut and the lower nut are cooperatively connected: the lower section of the inner wall of the nut is provided with a thread with a smaller pitch, and the outer wall of the lower nut is provided with a thread that engages with the thread of the nut.
  • the bolt is characterized in that the nut and the lower nut are cooperatively connected: the cross section of the inner wall of the lower section of the nut is a hexagon, and the cross section of the outer wall of the upper section of the lower nut is a hexagon that cooperates with the lower section of the inner wall of the nut.
  • Another bolt with a self-locking energy storage device of the present invention includes a screw and a nut that can be screwed with the screw.
  • the screw is formed into two parts with different diameters, and the diameter of the lower end part of the screw is smaller.
  • the threads of the two parts form a unified spiral, and the smaller diameter part engages with a lock spring.
  • a bolt with a self-locking energy storage device includes a screw and a nut that can be screwed with the screw, and further includes an energy storage spring engaged with the outer diameter of the screw to store energy.
  • the spring includes an inner lock spring with a self-locking function and an outer torsion spring with a thrust function.
  • the upper end surface of the nut is provided with a blind hole for planting the ends of the outer torsion spring.
  • Figure 1 Combination sectional view of a preferred embodiment of a bolt with a self-locking energy storage device of the present invention
  • FIG. 1 Schematic diagram of the screw in Figure 1;
  • FIG 3 Schematic diagram of the energy storage spring in Figure 1;
  • Figure 4 A perspective view of the nut in Figure 1;
  • Figure 5 A longitudinal sectional view of the nut shown in Figure 4.
  • Figure 6 A perspective view of the lower nut in Figure 1;
  • Figure 7 Schematic diagram of the chuck at the end of the screw in Figure 1;
  • Figure 8 Top view of the chuck shown in Figure 7.
  • FIG. 9A, FIG. 9B, and FIG. 9C are schematic diagrams of an upper lock spring, a middle lock spring, and a lower lock spring in FIG. 1, respectively; Best Mode of the Invention
  • a preferred embodiment of the bolt with a self-locking energy storage device of the present invention includes a screw 1, a nut 3, an upper lock spring 5, a lower lock spring 7, a lower nut 4, a middle lock spring 6, and energy storage.
  • FIG. 2 it is a schematic diagram of the screw 1 shown in FIG. 1.
  • the screw portion of the screw 1 is divided into two sections with different diameters.
  • the lower section of the screw 1 has a smaller diameter and the upper section has a larger diameter.
  • the smaller diameter part uses non-standard thread 1 3,
  • the larger diameter part uses standard thread 1 1,
  • an unlocking groove 12 is provided at the end of the larger diameter part, and a hexagonal or square shape is provided at the center of the bottom end surface of the screw 1 Recessed hole 1 4;
  • the non-standard thread 1 3 is used to engage with the lower lock spring 7, and the unlocking groove 1 2 is used to insert the movable end 7 2 of the lower lock spring 7 (as shown in FIG. 1 and FIG. 9C) ;
  • the recessed hole 1 4 is used to fix the chuck 8, and the non-standard thread 1 3 is engaged with the lower lock spring 7 to form a spiral line with the spiral thread of the upper part of the screw 1.
  • the energy storage spring 2 included in the bolt of the present invention is divided into an inner lock spring 2 1 and an outer torsion spring 2
  • the end of the inner lock spring 2 1 of the energy storage spring 2 is the free end 2 3, and the end of the outer torsion spring 2 2 is the hook 2 4, which is inserted into a blind hole at the upper end of the nut 3 when in use. As the screwing continues, the distance between the outer torsion springs gradually decreases, and finally the inner lock springs are wrapped.
  • the inner lock spring 2 1 has a self-locking effect
  • the outer torsion spring 2 2 has a thrust function, and has a function of stopping, storing and releasing energy.
  • the elastic thrust and the forward rotation torque of the energy storage spring 2 make them tighten. Push in the forward direction.
  • Fig. 4 is a schematic perspective view of the nut 3 shown in Fig. 1;
  • Fig. 5 is a longitudinal sectional view of the nut 3 shown in Fig. 4;
  • the internal thread of the nut 3 provided in this embodiment is divided into Two sections with different inner diameters, the smaller diameter of the standard thread 3 3 and the larger diameter of the thread 3 4, the pitch of the thread 3 4 is smaller than that of the standard thread 3 3, and the end of the standard thread 3 3 connecting thread 3 4 is provided.
  • the upper end of the nut 3 is provided with a blind hole 3 1 and a large fixing groove 3 5 at the end; the standard thread 3 3 is engaged with the upper lock spring 5 in use; the blind hole 3 1 is used for planting Outer hook 2 of the energy storage spring 2 4 0
  • FIG. 6 it is a perspective view of the lower nut 4 shown in FIG. 1; the lower nut 4 is a cap-shaped body with internal and external threads; in this embodiment, the internal thread is a standard thread 4 2, the external The thread is a reverse thread 4 1 with a small pitch.
  • the upper end of the lower nut 4 is provided with a fixing groove 4 4.
  • the flat nut of the lower nut 4 is provided with an unlocking hole 4 3.
  • the lower nut 4 is provided with a smaller pitch. Thread 4 1 is engaged with thread 3 4 of nut 3; standard thread 4 2 is engaged with middle lock spring 6.
  • FIGS. 7 and 8 it is a schematic diagram of the chuck 8 fixed at the end of the screw 1 in the bolt shown in FIG. 1; the chuck 8 in the present invention is provided with a concave hole 14 corresponding to the end of the screw 1.
  • FIG. 9A, FIG. 9B, and FIG. 9C are schematic diagrams of the upper lock spring 5, the middle lock spring 6, and the lower lock spring 7 shown in FIG. 1, respectively.
  • the upper lock spring 5 The inner diameter of the middle lock spring 6 is slightly smaller than the small diameter of the screw 1 engaged with it. The difference between the two is about 1/2 pitch, and the outer diameter of the lower lock spring 7 is slightly larger than the large diameter of the screw 1 engaged with it.
  • the difference between the two is about 1/2 pitch; one end of the upper lock spring 5 and the middle lock spring 6 are respectively provided with wide fixed ends 5 1, 6 1, which are respectively locked in the fixing grooves 3 5 and 3 of the nut 3 and In the fixing groove 4 4 of the lower nut 4, the other ends of the upper lock spring 5 and the middle lock spring 6 are the movable ends 5 2 and 6 2; when assembled, the upper lock spring 5, the middle lock spring 6 and the nut 3 and the lower nut are respectively After the 4 are engaged, their movable ends are inserted into the unlocking holes 3 2 of the nut 3 and the unlocking holes 4 3 of the lower nut 4 respectively; the fixed end 7 1 of the lower lock spring 7 is hooked into the fixing slot 8 2 of the chuck 8 The movable end 72 is seated in the unlocking groove 12 of the screw 1.
  • the geometric shapes of the cross sections of the various springs used in the bolt of the present invention may be various geometric shapes such as a circle, an ellipse, a diamond, a rectangle, or a triangle.
  • the geometric shapes of the cross sections of the spring are diamond.
  • the recessed hole 14 at the center of the bottom end surface of the screw 1 is hexagonal or square, and the corresponding convex post 8 1 on the corresponding chuck 8 is also hexagonal or square to prevent the screw 1 and the card from being stuck.
  • the cross section of the concave hole 14 and the convex post 8 1 in this embodiment is hexagonal.
  • the nut 3 and the lower nut 4 are combined by a thread, and a hexagonal hole crimping type may also be adopted. Way of joining.
  • the bolt with a self-locking energy storage device of the present invention is designed by making full use of the elastic characteristics of springs and the effect of friction, and by using the direct or indirect meshing of a thread with a coil spring. It is a type of energy storage, self-locking, The interlocking, interlocking, and automatic pre-tensioning mechanisms are integrated. Each component in the device has a one-way self-locking feature, the energy storage pin and the screw interlock, the energy storage spring and the nut interlock, the nut self-locking and interlocking with the screw. Under the action of stored mechanical energy, it is possible that relative forward rotation and reverse rotation are prevented, and the combined parts can only be tightened and cannot be moved backward.
  • the device has a compact structure, eliminating the need for additional accessories and assembly processes such as counter top nuts, through-opening locks, spring washers, flat washers, wire flaps, and non-return pieces. It is especially convenient to use, which improves the service life of fasteners and is safe and reliable. It has a strong anti-damage effect and can achieve standardized and serialized production.
  • the device of the present invention is provided with an unlocking hole and an unlocking slot, which is convenient for mechanical disassembly, when disassembling, first use a screwdriver to pick up the energy storage spring hook 2 4 from the blind hole 3 1, and then hold the inner spring after the energy is released. Terminal 2 3 reverses the rotation of the energy storage spring 2 . Then insert the aluminum rivet or other soft metal wire into the unlocking hole 3 2 to press the movable end 5 2 or 6 2. At this time, the self-locking state of the nut 3 and the lower nut 4 is released, and it can be like an ordinary nut. Lemon down. The mechanism is to enlarge the inner diameter of the self-locking spring, and the friction force is relatively eliminated.
  • the second is the overall disassembly, which is directly reversed with a wrench to destroy the chuck 8 at the bottom of the screw and remove the bolt as a whole; only the chuck 8 needs to be replaced during assembly.
  • the mechanism is that the upper part of the screw consists of an energy storage spring, a nut, and a lower
  • the self-locking and interlocking force of the nut is very large, and the projection 8 1 where the chuck 8 and the screw 1 match is relatively thin, and can be screwed out strongly to deform or distort it.
  • the screw can bring the lower lock spring out.
  • the chuck can be reinstalled after replacement.
  • the main components of the device can be used in full or partly or individually with ordinary standard screws or nuts as required. According to the requirements of use, the unlocking hole may not be provided, and the fixing of the lower lock spring and the screw may be directly connected to the bottom of the screw without a chuck.
  • the energy storage spring also has a separate and directly used with ordinary standard bolts to replace accessories such as open locks.
  • the bolt with self-locking energy storage device of the present invention is mainly directed to the common standard screw of present international standards.
  • the nut is designed to be used in combination, without changing the supporting parts, it has interchangeability, versatility and strong practicability, suitable for various fasteners, and convenient for automation and mass production.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

L'invention concerne un boulon doté d'un dispositif de stockage d'énergie et d'autoverrouillage qui comprend une tige filetée et un écrou. Un ressort supérieur de verrouillage est accouplé dans la paroi intérieure de l'écrou. Une fente de fixation et un orifice transversal de déverrouillage sont respectivement montés sur la surface supérieure et la partie inférieure de l'écrou. Les deux extrémités du ressort supérieur de verrouillage sont fixées dans la fente de fixation et dans l'orifice transversal de déverrouillage. La tige filetée peut être constituée de deux parties présentant des diamètres différents et les filetages des deux parties forment une ligne hélicoïdale uniforme. Un ressort inférieur de verrouillage est accouplé avec la partie inférieure de la tige filetée qui présente un diamètre inférieur. L'écrou peut contenir un écrou inférieur qui présente le même filetage que celui de l'écrou. Un ressort de verrouillage placé au milieu est accouplé à la paroi intérieure de l'écrou inférieur. Un ressort de stockage d'énergie comprend un ressort intérieur de verrouillage qui sert de ressort d'autoverrouillage et un ressort à torsion externe qui exerce une poussée, le ressort de stockage d'énergie étant accouplé avec la tige filetée.
PCT/CN1997/000102 1997-10-14 1997-10-14 Boulon dote d'un dispositif de stockage d'energie et d'autoverrouillage WO1999019637A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN1997/000102 WO1999019637A1 (fr) 1997-10-14 1997-10-14 Boulon dote d'un dispositif de stockage d'energie et d'autoverrouillage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN1997/000102 WO1999019637A1 (fr) 1997-10-14 1997-10-14 Boulon dote d'un dispositif de stockage d'energie et d'autoverrouillage

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Publication Number Publication Date
WO1999019637A1 true WO1999019637A1 (fr) 1999-04-22

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PCT/CN1997/000102 WO1999019637A1 (fr) 1997-10-14 1997-10-14 Boulon dote d'un dispositif de stockage d'energie et d'autoverrouillage

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128197A (zh) * 2010-12-30 2011-07-20 河南三建建设集团有限公司 一种墙体固定自攻螺丝的方法
CN107157729A (zh) * 2017-05-15 2017-09-15 厦门睿康科技有限公司 一种按摩器的单向自锁装置
CN108799307A (zh) * 2018-07-04 2018-11-13 尹苑苑 一种便拆式膨胀螺栓
CN113847330A (zh) * 2021-09-22 2021-12-28 嘉兴圣龙五金科技股份有限公司 一种自立式铁塔组装用防拆螺栓
CN115750373A (zh) * 2023-01-09 2023-03-07 力达(中国)机电有限公司 一种冷热隔离的变频真空泵

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233899A (en) * 1938-04-21 1941-03-04 Bethlehem Steel Corp Assembling rack
US5207543A (en) * 1991-06-28 1993-05-04 Deutsche Aerospace Airbus Gmbh Connecting device with a nut and bolt to prevent loosening and losing the nut
CN1091501A (zh) * 1993-02-23 1994-08-31 严明 自锁式螺帽螺栓

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233899A (en) * 1938-04-21 1941-03-04 Bethlehem Steel Corp Assembling rack
US5207543A (en) * 1991-06-28 1993-05-04 Deutsche Aerospace Airbus Gmbh Connecting device with a nut and bolt to prevent loosening and losing the nut
CN1091501A (zh) * 1993-02-23 1994-08-31 严明 自锁式螺帽螺栓

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128197A (zh) * 2010-12-30 2011-07-20 河南三建建设集团有限公司 一种墙体固定自攻螺丝的方法
CN107157729A (zh) * 2017-05-15 2017-09-15 厦门睿康科技有限公司 一种按摩器的单向自锁装置
CN108799307A (zh) * 2018-07-04 2018-11-13 尹苑苑 一种便拆式膨胀螺栓
CN113847330A (zh) * 2021-09-22 2021-12-28 嘉兴圣龙五金科技股份有限公司 一种自立式铁塔组装用防拆螺栓
CN115750373A (zh) * 2023-01-09 2023-03-07 力达(中国)机电有限公司 一种冷热隔离的变频真空泵
CN115750373B (zh) * 2023-01-09 2023-04-14 力达(中国)机电有限公司 一种冷热隔离的变频真空泵

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