WO2023197850A1 - 一种防松紧固件 - Google Patents

一种防松紧固件 Download PDF

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Publication number
WO2023197850A1
WO2023197850A1 PCT/CN2023/083766 CN2023083766W WO2023197850A1 WO 2023197850 A1 WO2023197850 A1 WO 2023197850A1 CN 2023083766 W CN2023083766 W CN 2023083766W WO 2023197850 A1 WO2023197850 A1 WO 2023197850A1
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WO
WIPO (PCT)
Prior art keywords
bolt
nut
washer
fixed
gasket
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Application number
PCT/CN2023/083766
Other languages
English (en)
French (fr)
Inventor
陈榕
Original Assignee
陈榕
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
Priority claimed from CN202220825531.4U external-priority patent/CN216975462U/zh
Priority claimed from CN202221276916.6U external-priority patent/CN217271356U/zh
Application filed by 陈榕 filed Critical 陈榕
Priority to US18/220,663 priority Critical patent/US20230349414A1/en
Publication of WO2023197850A1 publication Critical patent/WO2023197850A1/zh

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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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • 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

Definitions

  • the utility model relates to the technical field of hardware fasteners, in particular to an anti-loosening fastener, specifically involving bolts, nuts, elastic washers and fixed washers.
  • This type of bolt anti-loosening method is suitable for specific use environments, such as fastening train sleepers and rails, rolling stock, cars, tanks, armored vehicles, ships, excavators, shield machines, loaders, subways, high-speed rails, bridges , mining machinery, petroleum and electric machinery, urban prefabricated integrated construction, military aerospace, weaponry and other environments that are prone to high-frequency vibration and high temperature, it is very easy to cause the fastening parts to slip or deform, causing the fastening parts to loosen;
  • Another way to prevent bolts from loosening is to use a welding gun to weld the nuts and screws or use other foreign objects to fix the bolts and nuts on the object carrying the bolts to achieve the purpose of preventing loosening.
  • This type of method to prevent bolts from loosening It is a one-time anti-loosening structure. Once disassembled, it will be damaged and cannot be reused, which will increase the cost of use and make maintenance inconvenient.
  • the utility model proposes an anti-loosening fastener that can ensure that bolts do not loosen under high-frequency vibration and high-temperature environments, and that its stress remains unchanged compared with standard parts.
  • An anti-loosening fastener includes a bolt, a fixing component, a fixing washer and a nut that are sleeved on the bolt in sequence;
  • the fixing component includes two nuts and cut surfaces. One or two cut surfaces are cut out on one or both sides of the screw rod tail of the bolt. The two nuts are sleeved on the bolt, close to the head of the bolt, and away from the screw rod. slice settings;
  • the shape and size of the opening in the middle of the fixed gasket match the cross section of the screw, so that the fixed gasket is fixed relative to the bolt;
  • the nut is arranged away from the head of the bolt.
  • the surface of the nut that is in contact with the fixed washer is provided with at least two wedge-shaped helical teeth.
  • the surface of the fixed washer that is in contact with the nut is provided with the wedge-shaped helical teeth. Wedge-shaped grooves in which helical teeth mesh.
  • the fixing component can also be replaced by at least one vertical groove and a protrusion matched with the vertical groove.
  • the vertical groove is provided on the screw rod and is parallel to the axis of the screw rod.
  • the protrusion is located on the inside of the fixed gasket.
  • the wedge-shaped helical teeth are evenly distributed on a surface of the nut and radiate outward from the center.
  • an elastic washer which is sleeved on the bolt and is provided on the side of the fixed washer close to the head of the bolt.
  • the elastic washer has elasticity to support the fixed washer and the nut. A close contact.
  • the elastic gasket is an annular gasket, the annular gasket has a notch, and the two opposite surfaces of the notch are disposed in an offset manner.
  • the utility model utilizes the fastener's own structure to effectively prevent bolts and nuts from loosening under high-frequency vibration or low-frequency vibration or irregular frequency vibration, as well as under high-temperature vibration or low-temperature vibration or high-temperature or low-temperature environments.
  • the vertical groove opened on the screw has less influence on the original stress of the bolt, and cooperates with the protrusions of the fixed gasket to tighten the fixed gasket On the bolt;
  • the shape and size of the center hole of the fixing gasket matches the cross-sectional shape and size of the screw to prevent the fixing gasket and the bolt from sliding or shifting;
  • the annular gasket has a gap and misalignment to ensure elasticity to support the fixation The washer and nut are in closer contact.
  • Figure 1 is a schematic structural diagram of an embodiment of the present utility model
  • Figure 2 is a side view of a bolt according to an embodiment of the present invention.
  • Figure 3 is a front view of a bolt according to an embodiment of the present invention.
  • Figure 4 is a front view of a fixed gasket according to an embodiment of the present invention.
  • Figure 5 is a front view of the nut
  • Figure 6 is a front view of the elastic gasket
  • Figure 7 is a schematic structural diagram of another embodiment of the present utility model.
  • Figure 8 is a side view of a bolt according to another embodiment of the present invention.
  • Figure 9 is a front view of a bolt according to another embodiment of the present invention.
  • Figure 10 is a front view of a fixed gasket according to another embodiment of the present invention.
  • an anti-loosening fastener includes a bolt 1, a fixing component, a fixing washer 2 and a nut 3 that are sleeved on the bolt 1 in sequence;
  • the fixing component includes a nut 2 4 and cut plane 11, one or two cut planes 11 are cut out on one or both sides of the screw end of bolt 1, nut 2 4 is sleeved on bolt 1, close to the head of bolt 1, and is set away from the cut plane 11 of the screw;
  • fixed gasket 2 The shape and size of the middle opening match the cross-section of the screw, so that the fixed gasket 2 is fixed relative to the bolt 1; the nut 3 is set away from the head of the bolt 1, and the surface of the nut 3 contacts the fixed gasket 2
  • the two wedge-shaped helical teeth 31 can achieve a tightening effect, but The more wedge-shaped helical teeth 31 there are, the more precise the bolt fastener is. The deeper the tooth opening of the wedge-shaped helical teeth 31 is, the less likely it is for the nut 3 to rotate; The central hole diameter and internal thread match the screw rod and external thread of bolt 1. The setting of nut 2 and 4 ensures that the stress of the fastener is consistent with that of the national bolt standard parts. After the position of the fixed gasket 2 is limited by the fastener, the wedge-shaped helical teeth 31 on the surface of nut 1 3 are screwed into the wedge-shaped concave part of the fixed gasket 2.
  • This utility model ensures that bolts will not loosen and are reusable under high-frequency vibration and high-temperature environments. Its production process can be based on the original production process of ordinary bolts and can be realized by slightly improving the production equipment. Manufacturing, easy to promote and apply.
  • the shape and size of the opening in the middle of the fixed gasket 2 match the cross section of the screw to prevent the fixed gasket 2 and the bolt 1 from sliding or shifting.
  • the wedge-shaped helical teeth 31 are evenly distributed on the surface of the nut 3, radially outward from the center.
  • an elastic washer 5 is also included.
  • the elastic washer 5 is sleeved on the bolt 1 and is provided on the side of the fixing washer 2 close to the head of the bolt 1.
  • the elastic washer 5 has elasticity to support the fixation.
  • the gasket 2 is in close contact with the nut 3.
  • the elastic washer 5 has elasticity to support the fixed washer 2 and the nut 3 to be in close contact.
  • the elastic gasket 5 is an annular gasket.
  • the annular gasket has a notch, and the two opposite surfaces of the notch are disposed in an offset manner to ensure that the elastic gasket 5 has elasticity to support the fixed gasket. 2 is in closer contact with nut 3.
  • the fixing component can also be replaced with at least one vertical groove 12 and a protrusion 22 matched with the vertical groove 12.
  • the vertical groove 12 is provided on the screw. Parallel to the axis of the screw, the protrusion 22 is provided on the inside of the fixed gasket 2 .
  • the vertical groove 12 opened on the screw rod has less influence on the stress of the original standard part of the bolt 1, and cooperates with the protrusion 22 of the fixed gasket 2 to fasten the fixed gasket 2 to the bolt 1.
  • a washer 7 may be disposed between the fixing part 6 and the annular gasket to prevent the fixing part 6 from being damaged by the misplaced annular gasket.
  • nut 4 is tightened first, and nut 4 generates force to squeeze the fixing member 6 until it is completely tightened. At this time, nut 4 falls onto the complete external thread of the screw, and then the nut is tightened. At 13, nut 3 generates force to squeeze the fixed gasket 2, which in turn drives the fixed gasket 2 to squeeze the elastic gasket 5, and further drives the elastic gasket 5 to squeeze the nut 24 until it is completely tightened.
  • the wedge-shaped helical teeth 31 of the nut 3 mesh with the wedge-shaped groove 21 of the fixed gasket 2 to generate a reaction force to ensure that the nut 3 cannot slide or displace and cause loosening; fixation
  • the size and shape of the center hole of the gasket 2 match the cross section of the screw, because the cross-section 11 structure of the screw fixes the rotation of the fixed gasket 2, and an elastic gasket 5 is added between the fixed gasket 2 and the nut 2 4
  • the screw, the elastic washer 5, the fixed washer 2 and the nut 3 lock the fixing 6 that needs to be fixed to form a whole that cannot be loosened, thereby ensuring that the bolt 1 or the nut 1.3 will not loosen, causing falling off and causing accidents.
  • the nut 3 when the bolt 1 or the nut 3 is tightened, the nut 3 generates force to squeeze the fixed gasket 2, and then drives the fixed gasket 2 to squeeze the elastic gasket 5 and the washer 7. Further drive the washer 7 to squeeze the fixing part 6 until it is completely tightened.
  • the size and shape of the central hole of the fixed gasket 2 match the cross section of the screw.
  • the protrusions 22 of the fixed gasket 2 are inserted into the vertical grooves 12 of the screw, so that the fixed gasket 2 is firmly fixed on the screw and cannot rotate.
  • the structural functions of other components are consistent with those of the above embodiment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

一种防松紧固件,包括螺栓（1）、固定部件和依次套接于螺栓（1）的固定垫片（2）以及螺母一（3）;固定部件包括螺母二（4）和切面（11）,螺栓（1）的螺杆尾部单侧或两侧切出一个或者两个切面（11）,螺母二（4）套接于螺栓（1）,靠近螺栓（1）的头部,并远离螺杆的切面（11）设置;固定垫片（2）中间开孔的形状及大小与螺杆的横截面相匹配,以使固定垫片（2）相对于螺栓（1）固定;螺母一（3）远离螺栓（1）的头部设置,螺母一（3）与固定垫片（2）相接触的表面设有至少2个楔形斜齿（31）,固定垫片（2）与螺母一（3）相接触的表面设有与楔形斜齿（31）相啮合的楔形凹槽（21）;该防松紧固件在高频振动、高温环境下保证螺栓不发生松动,且与标准件相比其应力保持不变。

Description

一种防松紧固件 技术领域
本实用新型涉及五金紧固件技术领域，特别涉及一种防松紧固件，具体涉及螺栓、螺母一、弹性垫片及固定垫片。
 背景技术
现有的螺栓防松动的方式很多，常见的有采用插销穿过螺母和螺杆固定在一个点防止螺母和螺杆相对滑动以达到防松动的目的，再有采取对顶双螺母的方式以达到防松动的目的等等。
 技术问题
此类螺栓防松动的方式在特定的使用环境下，比如火车轨枕与铁轨的紧固、机车车辆、汽车、坦克、装甲车、船舰、挖掘机、盾构机、装载机、地铁、高铁、桥梁、矿山机械、石油电力机械、城市装配式集成建设、军事航空航天、武器装备等易产生高频振动、高温的环境下，极容易导致紧固部件产生滑动或形变从而导致紧固部件发生松动；还有一种螺栓防松动的方式是采取焊枪将螺母和螺杆焊接起来或借助其它外物将螺栓、螺母固定在承载螺栓的物体上，从而达到防松动的目的，此类此类螺栓防松动的方式为一次性防松结构，一旦拆卸即遭受破坏，无法重复使用，从而增加使用费用也不便维修。
 技术解决方案
本实用新型提出了一种在高频振动、高温环境下能保证螺栓不发生松动，且与标准件相比其应力不变的防松紧固件。
本实用新型的技术方案是这样实现的：
一种防松紧固件，包括螺栓、固定部件、和依次套接于螺栓的固定垫片以及螺母一；
所述固定部件包括螺母二和切面，所述螺栓的螺杆尾部单侧或两侧切出一个或者两个所述切面，所述螺母二套接于螺栓，靠近螺栓的头部，并远离所述螺杆的切面设置；
所述固定垫片中间开孔的形状及大小与所述螺杆的横截面相匹配，以使所述固定垫片相对于螺栓固定；
所述螺母一远离螺栓的头部设置，所述螺母一与固定垫片相接触的表面设有至少2个楔形斜齿，所述固定垫片与螺母一相接触的表面设有与所述楔形斜齿相啮合的楔形凹槽。
进一步地，所述固定部件还可替换为至少一个竖槽和与所述竖槽相配合设置的凸起，所述竖槽设于所述螺杆上，与所述螺杆的轴线相平行，所述凸起设于固定垫片内侧。
进一步地，所述楔形斜齿均匀分布于所述螺母一表面，由中心向外呈放射状。
进一步地，还包括弹性垫片，所述弹性垫片套接于螺栓，设置于所述固定垫片靠近螺栓头部的一侧，所述弹性垫片具有弹性以支撑所述固定垫片与螺母一紧密接触。
进一步地，所述弹性垫片为圆环形垫片，所述圆环形垫片具有一缺口，所述缺口相对的两表面错位设置。
 有益效果
本实用新型利用紧固件的自身结构，可在高频震动或者低频震动或者不规则频率震动情况下以及在高温振动或低温震动或高温或低温等环境下有效防止螺栓、螺母一发生松动，避免造成重大事故，以及具有可重复使用性；螺母二的设置保证了紧固件与原标准件的应力一致，固定垫片的位置被固定件限制后，螺母一表面的楔形斜齿一旦旋入固定垫片的楔形凹槽内，则无法旋出，达到永不松动的效果；在螺杆上开设的竖槽对螺栓的原应力影响较少，与固定垫片的凸起配合将固定垫片紧固于螺栓上；固定垫片的中心孔形状尺寸与螺杆的截面形状尺寸相匹配，以防止固定垫片与螺栓发生滑动或位移；圆环形垫片有一缺口及错位，以保证具有弹性以支撑固定垫片与螺母一接触的更为紧密。
 附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本实用新型一实施例的结构示意图；
图2是本实用新型一实施例的螺栓侧视图；
图3是本实用新型一实施例的螺栓正视图；
图4是本实用新型一实施例的固定垫片正视图；
图5是螺母一正视图；
图6是弹性垫片正视图；
图7是本实用新型另一实施例的结构示意图；
图8是本实用新型另一实施例的螺栓侧视图；
图9是本实用新型另一实施例的螺栓正视图；
图10是本实用新型另一实施例的固定垫片正视图。
图中：1-螺栓，11-切面，12-竖槽，2-固定垫片，21-楔形凹槽，22-凸起，3-螺母一，31-楔形斜齿，4-螺母二，5-弹性垫片，6-固定件，7-垫圈。
 本发明的具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
参照图1至6所示，在一实施例中，一种防松紧固件，包括螺栓1、固定部件、和依次套接于螺栓1的固定垫片2以及螺母一3；固定部件包括螺母二4和切面11，螺栓1的螺杆尾部单侧或两侧切出一个或者两个切面11，螺母二4套接于螺栓1，靠近螺栓1的头部，并远离螺杆的切面11设置；固定垫片2中间开孔的形状及大小与螺杆的横截面相匹配，以使固定垫片2相对于螺栓1固定；螺母一3远离螺栓1的头部设置，螺母一3与固定垫片2相接触的表面设有至少2个楔形斜齿31，固定垫片2与螺母一3相接触的表面设有与楔形斜齿31相啮合的楔形凹槽21。2个楔形斜齿31可实现紧固作用，但楔形斜齿31越多，螺栓紧固件就越精密，楔形斜齿31的齿口越深，螺母一3越不容易回旋；螺母一3为四角或六角形状，其中心孔有内螺纹，其中心孔径及内螺纹与螺栓1的螺杆及外螺纹相匹配。螺母二4的设置保证了紧固件与国家螺栓标准件的应力一致，固定垫片2的位置被固定件限制后，螺母一3表面的楔形斜齿31一旦旋入固定垫片2的楔形凹槽21内，则无法旋出，达到永不松动的效果。本实用新型在高频振动、高温环境下保证螺栓不发生松动且具有可重复使用性，其生产工艺可在原有生产加工普通螺栓生产工艺的基础上，稍微改进一下生产设备即可实现该产品的制造，便于推广应用。
具体的，固定垫片2中间开孔的形状及大小与螺杆的横截面相匹配，以防止固定垫片2与螺栓1发生滑动或位移。
参照图5所示，优选地，楔形斜齿31均匀分布于螺母一3表面，由中心向外呈放射状。
参照图6所示，优选地，还包括弹性垫片5，弹性垫片5套接于螺栓1，设置于固定垫片2靠近螺栓1头部的一侧，弹性垫片5具有弹性以支撑固定垫片2与螺母一3紧密接触。弹性垫片5具有弹性以支撑固定垫片2与螺母一3紧密接触。
参照图6所示，优选地，弹性垫片5为圆环形垫片，圆环形垫片具有一缺口，缺口相对的两表面错位设置，以保证弹性垫片5具有弹性以支撑固定垫片2与螺母一3接触的更为紧密。
参照图7至图10所示，在另一个优选的实施例中，固定部件还可替换为至少一个竖槽12和与竖槽12相配合设置的凸起22，竖槽12设于螺杆上，与螺杆的轴线相平行，凸起22设于固定垫片2内侧。在螺杆上开设的竖槽12对螺栓1的原标准件的应力影响较少，与固定垫片2的凸起22配合将固定垫片2紧固于螺栓1上。在本实施例中，固定件6和圆环形垫片之间还可设置有一垫圈7，以免错位设置的圆环形垫片对固定件6带来损坏。
在一实施例具体安装使用过程中，先拧紧螺母二4，螺母二4产生作用力挤压固定件6，直至完全紧固，此时螺母二4落入螺杆的完整外螺纹上，接着拧紧螺母一3时，螺母一3产生作用力挤压固定垫片2，进而带动固定垫片2挤压弹性垫片5，进一步的带动弹性垫片5挤压螺母二4，直至完全紧固。螺栓1或螺母一3回松时，螺母一3的楔形斜齿31与固定垫片2的楔形凹槽21相啮合产生反向作用力，以保证螺母一3无法发生滑动或位移导致松动；固定垫片2中心孔的尺寸、形状与螺杆的横截面相匹配，因为螺杆的切面11结构固定住固定垫片2的转动，且在固定垫片2与螺母二4之间加入了弹性垫片5以保证固定垫片2无法沿着螺杆发生位移，这样螺杆、弹性垫片5、固定垫片2与螺母一3把需要固定的固定件6锁定形成一个无法松动的整体，从而保证螺栓1或螺母一3不会发生松动从而导致脱落引发事故。
在另一实施例具体安装使用过程中，当拧紧螺栓1或螺母一3时，螺母一3产生作用力挤压固定垫片2，进而带动固定垫片2挤压弹性垫片5和垫圈7，进一步的带动垫圈7挤压固定件6，直至完全紧固。固定垫片2中心孔的尺寸、形状与螺杆的横截面相匹配，固定垫片2的凸起22套入螺杆的竖槽12内，将固定垫片2牢牢固定于螺杆上，无法转动。其他部件的结构功能与上述实施例的一致。
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (5)

  1. 一种防松紧固件，其特征在于：包括螺栓、固定部件、和依次套接于螺栓的固定垫片以及螺母一；
    所述固定部件包括螺母二和切面，所述螺栓的螺杆尾部单侧或两侧切出一个或者两个所述切面，所述螺母二套接于螺栓，靠近螺栓的头部，并远离所述螺杆的切面设置；
    所述固定垫片中间开孔的形状及大小与所述螺杆的横截面相匹配，以使所述固定垫片相对于螺栓固定；
    所述螺母一远离螺栓的头部设置，所述螺母一与固定垫片相接触的表面设有至少2个楔形斜齿，所述固定垫片与螺母一相接触的表面设有与所述楔形斜齿相啮合的楔形凹槽。
  2. 如权利要求1所述的一种防松紧固件，其特征在于：所述固定部件还可替换为至少一个竖槽和与所述竖槽相配合设置的凸起，所述竖槽设于所述螺杆上，与所述螺杆的轴线相平行，所述凸起设于固定垫片内侧。
  3. 如权利要求1或2所述的一种防松紧固件，其特征在于：所述楔形斜齿均匀分布于所述螺母一表面，由中心向外呈放射状。
  4. 如权利要求3所述的一种防松紧固件，其特征在于：还包括弹性垫片，所述弹性垫片套接于螺栓，设置于所述固定垫片靠近螺栓头部的一侧，所述弹性垫片具有弹性以支撑所述固定垫片与螺母一紧密接触。
  5. 如权利要求4所述的一种防松紧固件，其特征在于：所述弹性垫片为圆环形垫片，所述圆环形垫片具有一缺口，所述缺口相对的两表面错位设置。
PCT/CN2023/083766 2022-04-11 2023-03-24 一种防松紧固件 WO2023197850A1 (zh)

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JPH07269550A (ja) * 1994-03-25 1995-10-17 Okuma Mach Works Ltd 高精度緩み止めナット
CN201133408Y (zh) * 2007-06-13 2008-10-15 于洋 防松紧固螺栓
CN105090208A (zh) * 2015-08-25 2015-11-25 王景东 防松动防拆卸螺栓
US20170343135A1 (en) * 2016-05-25 2017-11-30 Loren Piotrowski Pass through fitting for cables and the like
CN110566565A (zh) * 2019-08-30 2019-12-13 南京斯杩克机器人技术有限公司 一种机器人安装用防松动机构
CN216975462U (zh) * 2022-04-11 2022-07-15 陈榕 一种防松动的螺栓紧固器件
CN114876939A (zh) * 2022-04-11 2022-08-09 陈榕 一种防松动的螺栓紧固器件
CN217271356U (zh) * 2022-05-26 2022-08-23 陈榕 一种防松紧固件

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07269550A (ja) * 1994-03-25 1995-10-17 Okuma Mach Works Ltd 高精度緩み止めナット
CN201133408Y (zh) * 2007-06-13 2008-10-15 于洋 防松紧固螺栓
CN105090208A (zh) * 2015-08-25 2015-11-25 王景东 防松动防拆卸螺栓
US20170343135A1 (en) * 2016-05-25 2017-11-30 Loren Piotrowski Pass through fitting for cables and the like
CN110566565A (zh) * 2019-08-30 2019-12-13 南京斯杩克机器人技术有限公司 一种机器人安装用防松动机构
CN216975462U (zh) * 2022-04-11 2022-07-15 陈榕 一种防松动的螺栓紧固器件
CN114876939A (zh) * 2022-04-11 2022-08-09 陈榕 一种防松动的螺栓紧固器件
CN217271356U (zh) * 2022-05-26 2022-08-23 陈榕 一种防松紧固件

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