KR20100098023A - U-bolt assembly having unscrew preventing function - Google Patents

U-bolt assembly having unscrew preventing function Download PDF

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Publication number
KR20100098023A
KR20100098023A KR1020090016980A KR20090016980A KR20100098023A KR 20100098023 A KR20100098023 A KR 20100098023A KR 1020090016980 A KR1020090016980 A KR 1020090016980A KR 20090016980 A KR20090016980 A KR 20090016980A KR 20100098023 A KR20100098023 A KR 20100098023A
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KR
South Korea
Prior art keywords
nut
loosening
bolt
coupling
bolt assembly
Prior art date
Application number
KR1020090016980A
Other languages
Korean (ko)
Inventor
이동호
Original Assignee
주식회사 호크마이엔지
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 주식회사 호크마이엔지 filed Critical 주식회사 호크마이엔지
Priority to KR1020090016980A priority Critical patent/KR20100098023A/en
Publication of KR20100098023A publication Critical patent/KR20100098023A/en

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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
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
    • 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
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • F16B39/101—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt with a plate, spring, wire or ring holding two or more nuts or bolt heads which are mainly in the same plane

Abstract

PURPOSE: U-bolt assembly having an anti-release function is provided to prevent the release of a nut by making the rotation direction of the nut contrary by connecting an anti-release member to a connecting part after forming the connecting part on nuts which are adjacent to each other. CONSTITUTION: U-bolt assembly having an anti-release function is composed of a pair of nuts(100-1,100-2) coupled to a U-bolt and an anti-release member(200) which prevents the release of the nut. A thread is formed in the nut and a plurality of connecting parts are formed on the side of the nut. The anti-release member is formed from a steel wire having elasticity. The anti-release member is composed of a S-shaped body(220) and connecting units formed on both ends of the body. One connecting unit of the anti-release member is connected to a connecting part of one nut and the other connecting unit of the anti-release member is connected to a connecting part of the other nut.

Description

Shock-bolt assembly with loosening protection {U-BOLT ASSEMBLY HAVING UNSCREW PREVENTING FUNCTION}

The present invention relates to a U-bolt assembly having an anti-loosening function, and more particularly, to form an engaging portion in a nut adjacent to each other, and then to unfasten the nut by combining the anti-loosening member with the engaging portion to reverse the direction of rotation of the nut. The present invention relates to a U bolt assembly having an anti-loosening function which prevents loosening of a nut installed in the U bolt by using the same for the U bolt.

A nut generally refers to a mechanical element having a polygonal column shape with a threaded through hole therein.

The nut is normally held by screwing a bolt or the like, and when a disturbance such as vibration is applied to the nut, the nut is loosened and the nut is separated from the bolt.

A conventional anti-loosening nut for preventing this will be described with reference to FIGS. 1 and 2.

1 is a perspective view of a conventional anti-loosening nut, and FIG. 2 is a cross-sectional view showing a cross section in a state where the anti-loosening nut is engaged with the bolt.

1 and 2, the conventional anti-loosening nut 10 includes a body part 11 having a polygonal pillar shape, an extension part 13 formed on the body part 11, and a body. It includes a washer 15 formed on the bottom of the portion 11, the extension portion 13 is formed with a spiral cut portion (14).

When the above-mentioned anti-loosening nut 10 is combined with the bolt 20, the washer 15 is pressed against the fixed object 30, and the repulsive force acts in the direction I side, so that the thread portion and the bolt 20 on the inner surface of the body part 11 are fixed. It is possible to prevent the loosening of the nut 10 by increasing the friction force of the contact portion of the threaded portion of the.

Further, when an external force is applied on the extension portion 13 in the direction II axis, the cutout portion 14 is deformed into a shape in which the width thereof is narrowed, and the screw thread formed inside the cutout portion 14 by the deformation is its height or pitch. The back changes.

Thus, the thread inside the deformed cutout 14 and the thread of the bolt 20 are not able to move relative to each other and eventually loosen of the nut 10.

However, in the case of the conventional anti-loosening nut 10 described above, a spiral cutout 14 must be formed in the extension part 13, but the cutout part 14 must be processed, and an external force is applied on the extension part 13. To deform the incision 14 only to act again there was a problem that takes a lot of time and effort to mount the conventional anti-loosening nut (10).

The present invention is to solve the above problems, an object of the present invention is to prevent the loosening of the nut by reversing the direction of rotation of the nut by combining the anti-loosening member with the engaging portion after forming the coupling portion in the adjacent nut mutually On the other hand it is to provide a U bolt assembly having an anti-loosening function to prevent the loosening of the nut installed in the U bolt by using this in the U bolt.

The object is according to the present invention, a U bolt assembly consisting of a pair of nuts fastened to the U bolt, and an anti-loosening member for preventing loosening of the nut, the nut is threaded therein, a plurality of coupling on the side An additionally formed, the anti-loosening member is formed of a steel wire having elasticity, and is composed of a body portion formed in the S-shape, and coupling means formed on both ends of the body portion, one side coupling means of the anti-loosening member Coupled to one coupling portion of one nut, and the other coupling means is coupled to the other coupling portion opposite to the coupling portion of the other nut, thereby preventing rotation of the adjacent nut to prevent loosening of the nut. Is achieved.

In addition, the coupling portion is formed of a hole formed through the side of the nut or a groove formed by recessed into the nut, the coupling means are each formed of a pin bent in the opposite direction so that the pin is in the hole or groove Can be inserted.

In addition, the coupling portion is formed of a protrusion formed to protrude out of the nut, the coupling means may be formed in a ring may be installed so that the hook is caught in the protrusion.

In addition, the body portion of the anti-loosening member may include a spring portion to enable elastic deformation in the longitudinal direction.

Thereby, the U bolt assembly having an anti-loosening function according to the present invention forms a coupling portion in the nut adjacent to each other, and then combines the anti-loosening member with the coupling portion to prevent loosening of the nut by reversing the direction of rotation of the nut. By using this in the U bolt to prevent the loosening of the nut installed in the U bolt, there is an effect that can reduce the time and effort required for the prevention of nut loosening compared to the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

The U bolt assembly having an anti-loosening function according to the present invention relates to the nut 100, the anti-loosening member 200, and the U bolt assembly using the same.

First, as shown in FIGS. 3A and 3B, the nut 100 has a polygonal pillar shape, a thread 111 is formed therein, and a plurality of coupling parts 120 are formed in a radial direction on a side surface thereof. .

3A and 3B, the coupling part 120 may be formed as a cylindrical hole to penetrate the nut 100 toward the center of the nut 100, and FIGS. 4A and 4B. Likewise, the side of the nut 100 may be formed with protrusions protruding in the outward direction of the nut 100.

At this time, the coupling part 120 (hole, protrusion) may be formed to face the center point of the nut 100, but may be formed to be inclined at an angle, in the present invention, all of which are included in the radial direction.

And, when the coupling portion 120 is formed as a hole, it is intended to insert the pins 210 and 230 of the anti-loosening member 200 to be described later, other shapes as long as the above object is achieved, for example Naturally, even if the groove is not formed through a hole and does not penetrate the nut 100 or is not in a cylindrical shape, it is a matter of course.

On the other hand, the anti-loosening member 200, as shown in Figures 5a to 7b, formed as a steel wire having elasticity, the body portion 220 having an S-shape, and both ends of the body portion 220 Consists of coupling means respectively formed in the.

Coupling means may be formed of pins 210 and 230 which are bent in opposite directions at both ends of the body portion 220, as shown in FIGS. 5A, 5B and 7A, and in FIGS. 6A, 6B and 7B. As shown, each of the ends of the body portion 220 may be formed as a ring 240, respectively.

Here, when the coupling part 120 of the nut 100 is a hole or a groove, an anti-loosening member 200 having both ends of the body part 220 formed with pins 210 and 230 may be used. When the coupling part 120 is a protrusion, an anti-loosening member 200 in which both ends of the body part 220 are formed of the ring 240 is used.

5A and 5B are conceptual views illustrating that the loosening prevention member 200 of the present invention is installed in the nut 100 to prevent loosening when the coupling part 120 formed in the nut 100 is a hole.

As shown in FIG. 5A, the pin 210 on the left side of the anti-loosening member 200 is bent in the lower side of the drawing of the body portion 220, and the pin 230 on the right side is bent in the upper side in the drawing. It is illustrated.

At this time, the pin 210 on the left side is inserted into the lower hole 120a of the drawing of the nut 100-1 on the left side, and the pin 230 on the right side of the drawing upper hole 120b of the nut 100-2 on the right side. Is inserted into

As the anti-loosening member 200 is installed, the rotation direction of the adjacent nut 100 is reversed.

For example, when the nut 100-1 on the left attempts to rotate counterclockwise, the nut 100-2 on the right attempts to rotate clockwise.

In other words, when the nut 100-1 on the left side starts to loosen from the bolt while rotating counterclockwise, the nut 100-2 on the right side tries to rotate in the more tight direction.

Therefore, the left nut 100-1 cannot rotate counterclockwise, that is, in the unwinding direction, by the right nut 100-2 rotating in the opposite direction, thereby preventing loosening of the nut 100.

Of course, even if the right nut 100-2 tries to rotate in the release direction, it cannot be rotated by the left nut 100-1 and the loosening is prevented.

As described above, the loosening member 200 of the present invention can prevent loosening of the nut 100 installed on the U bolt, which will be described later.

Meanwhile, in FIG. 5A, the loosening preventing member 200 of the present invention is inserted into the holes 120a and 120b at the 6 o'clock and 0 o'clock directions of the nut 100, but as shown in FIG. 5B. It is also possible to insert into the holes 120c and 120d at the 9 o'clock and 3 o'clock directions.

In addition, the reference numerals of the holes are divided into 120a, 120b, 120c, and 120d, and they are indicated by dividing the reference numerals according to the position at which they are formed and the shape is the same.

On the other hand, the body portion 220 connecting the pins 210 and 230 is represented as having an S-shape.

However, the above expression is intended to indicate that the body portion 220 is formed to be inclined because the loosening prevention member 200 must connect the upper side and the lower side of the adjacent nut 100.

That is, the loosening prevention member 200 is fixed to the upper side and the lower side of the adjacent nut 100, respectively, to reverse the direction of rotation of the adjacent nut 100 to prevent loosening of the nut 100. Bar, another shape, for example, as shown in Figure 5a, the shape of the flat portion 220a is present between the pins 210, 230 and the body portion 220 or the body portion 220 as shown in Figure 5b Even if the shape is extended, but the flat portion (220a) does not exist, as long as the above object is achieved, it is natural to belong to the scope of the present invention.

6A and 6B are conceptual views illustrating that the loosening prevention member 200 of the present invention is installed on the nut 100 to prevent loosening when the coupling part 120 formed on the nut 100 is a protrusion. .

At this time, only the coupling means of the anti-loosening member 200 is different from that formed by a ring, and the other portions of the anti-loosening member 200 used when the coupling part 120 formed on the nut 100 is a hole are the same. Therefore, detailed description is omitted.

On the other hand, in order to further improve the workability when installing the anti-loosening member 200 of the present invention to the nut 100, as shown in Figure 7a and 7b, the spring portion 250 to the body portion 220 It is also preferable to include the elastic deformation in the longitudinal direction.

The spring portion 250 may be a compression coil spring 250, as shown in FIGS. 7A and 7B, or may be a torsion coil spring, although not shown.

The spring unit 250 is a spring shape, and refers to a spring that is returned by elastic force when tensioned in a compressed state, and the torsion coil spring is a spring that is tensioned by torsion in a compressed state and then returns again as the torsion is resolved. .

Since the anti-loosening member 200 is elastically deformed by the anti-loosening member 200 including the spring part 250 of the present invention, workability is greatly improved when the nut 100 is mounted on the nut 100.

On the other hand, the spring portion 250 in the present invention includes not only the coil spring but also other deformed structures that enable elastic deformation in the longitudinal direction.

On the other hand, the U bolt assembly having an anti-loosening function of the present invention, as shown in Figures 8a and 8b, the U bolt (U), the nut 100 is provided on the U bolt (U), and the nut ( And an anti-loosening member 200 installed at 100.

8A and 8B are perspective views showing that the U bolt U, the nut 100, and the anti-loosening member 200, which are used to fix the pipe B in which the electric wire W is embedded, are installed.

Here, the nut 100 and the loosening prevention member 200 are the same as described above.

8A illustrates a case in which the coupling part 120 is a hole and the coupling means are pins 210 and 230, and FIG. 8B is a case in which the coupling part 120 is a protrusion and the coupling means is a ring 240. As shown in the drawings, in both cases, only the shape of the coupling unit 120 and the coupling means are different, so the coupling unit 120 is a hole and the coupling means will be described only when the pins 210 and 230.

As shown in FIG. 8A, the nut 100 of the present invention described above is mounted on both side thread portions U1 of the U bolt U, respectively.

U-bolt (U) has a U-shape as is widely known, but the threaded portion (U1) is formed on both sides, the threaded portion (U1) is a screw formed together with the right or left screw.

In FIG. 8A, the wire B having the wire W embedded therein is fixed by the U bolt U, and the fixing plate P is installed to fix the pipe B more firmly.

The nut 100 is coupled to both threaded portions U1 of the U bolt U, and the nut 100 is provided with an anti-loosening member 200.

At this time, the anti-loosening member 200 inserts one side pin 210 of the anti-loosening member 200 into the hole 120 of the nut 100 on one side of the nut 100-FIG. 8A.

Thereafter, when the other pin 230 is inserted into the hole 120 of the other nut 100-2, the mounting of the release preventing member 200 is completed.

The loosening of the nut 100 is prevented by the U bolt assembly of the present invention.

For example, when the nut 100-1 on the left side is to be released from the screw portion U1 while rotating counterclockwise due to vibration or the like, the nut 100-2 on the right side rotates in the opposite direction and thus clockwise. Try to rotate

Therefore, the left nut 100-1 cannot be rotated by the right nut 100-2, and as a result, loosening of the left nut 100-1 is prevented.

At this time, the nut 100 is preferably coupled to the bottom of the screw portion (U1) of the U bolt (U) as much as possible.

In the above-described example, this means that even if the right nut 100-2 tries to rotate in the locked direction, it can no longer be lowered toward the lower side of the U bolt U, and as a result, the left nut 100 cannot be rotated. -1) also can not be rotated to prevent loosening.

Of course, even if the nut 100 is lowered only up to the intermediate point of the threaded portion (U1) of the U bolt (U), the loosening is prevented.

That is, the left nut 100-1 is raised while rotating in the unwinding direction, and the right nut 100-2 is rotated in the opposite direction, so that the left nut 100-1 is lowered.

However, since the length of the body portion 220 of the loosening prevention member 200 is limited, the lifting and lowering displacement of the left nut 100-1 and the right nut 100-2 is limited.

Therefore, after raising and lowering to some extent, rotation of the left nut 100-1 and the right nut 100-2 is restricted, thereby preventing loosening of the left nut 100-1.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. It will be understood that various changes and modifications may be made without departing from the scope of the present invention.

1 is a perspective view of a conventional anti-loosening nut.

Fig. 2 is a cross sectional view showing a cross section of a state in which a conventional anti-loosening nut is engaged with a bolt.

3A and 3B are a perspective view and a plan view of one embodiment of a nut of the present invention.

4A and 4B are a perspective view and a plan view of another embodiment of a nut of the present invention.

5A to 6B are conceptual views showing that the anti-loosening member of the present invention is attached to a nut to prevent loosening.

7A and 7B are conceptual views of each embodiment provided with a spring part in the anti-loosening member of the present invention.

8A and 8B are perspective views in which a U bolt, a nut, and an anti-loosening member are combined.

<Description of the symbols for the main parts of the drawings>

100: nut 110: through hole

111: thread 120: coupling part

200: loosening prevention member 210, 230: pin

220: body portion 240: ring

250: spring portion U: U bolt

U1: thread

Claims (4)

A U bolt assembly consisting of a pair of nuts fastened to a U bolt and an anti-loosening member for preventing the nut from loosening, The nut is threaded therein, a plurality of coupling parts are formed on the side, The anti-loosening member is formed of a steel wire having elasticity, and is composed of a body portion formed in an S shape and coupling means formed at both ends of the body portion. One coupling means of the anti-loosening member is coupled to one coupling portion of one nut, and the other coupling means is coupled to the other coupling portion opposite to the coupling portion of the other nut to reverse the rotation direction of the adjacent nut. U bolt assembly having an anti-loosening function, characterized in that to prevent loosening of the nut. The method of claim 1, The coupling part is formed of a hole formed through the side of the nut or a groove formed by recessed into the nut, The coupling means are each formed of a pin bent in the opposite direction, the U bolt assembly having an anti-loosening function, characterized in that the pin is inserted into the hole or groove. The method of claim 1, The coupling portion is formed of a protrusion formed to protrude out of the nut, The coupling means is formed in a ring U bolt assembly having a loosening function, characterized in that the hook is installed so as to catch the projection. The method of claim 1, U-bolt assembly having an anti-loosening function, characterized in that the body portion of the anti-loosening member includes a spring portion to elastically deform in the longitudinal direction.
KR1020090016980A 2009-02-27 2009-02-27 U-bolt assembly having unscrew preventing function KR20100098023A (en)

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Application Number Priority Date Filing Date Title
KR1020090016980A KR20100098023A (en) 2009-02-27 2009-02-27 U-bolt assembly having unscrew preventing function

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190025774A (en) 2017-09-01 2019-03-12 현대자동차주식회사 Apparatus of preventing nut loosening
CN111677744A (en) * 2020-04-30 2020-09-18 中国航发南方工业有限公司 Double-insurance connecting structure, turboprop type aero-engine and double-insurance fixing method
KR102376365B1 (en) * 2021-11-22 2022-03-18 문정남 Pipe Coupling Apparatus
CN114810787A (en) * 2022-05-12 2022-07-29 嘉兴华意科技股份有限公司 Wind power locking nut

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190025774A (en) 2017-09-01 2019-03-12 현대자동차주식회사 Apparatus of preventing nut loosening
CN111677744A (en) * 2020-04-30 2020-09-18 中国航发南方工业有限公司 Double-insurance connecting structure, turboprop type aero-engine and double-insurance fixing method
CN111677744B (en) * 2020-04-30 2021-08-06 中国航发南方工业有限公司 Double-insurance connecting structure, turboprop type aero-engine and double-insurance fixing method
KR102376365B1 (en) * 2021-11-22 2022-03-18 문정남 Pipe Coupling Apparatus
CN114810787A (en) * 2022-05-12 2022-07-29 嘉兴华意科技股份有限公司 Wind power locking nut

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