CN215366567U - Rail brace structure for rail capable of realizing bolt looseness prevention - Google Patents

Abstract

The embodiment of the utility model provides a rail brace structure for a rail, which can realize bolt looseness prevention and relates to the technical field of railway equipment. The rail brace structure for the rail capable of realizing bolt looseness prevention comprises a rail brace, a transverse bolt, a transverse nut, a gasket and a clamping piece for nut looseness prevention. The rail brace is characterized in that a rotation stopping boss is convexly arranged around a first through hole in a vertical wall of the rail brace, the rotation stopping boss is surrounded to form a screwing space for screwing the transverse nut, the clamping piece is arranged on the rotation stopping boss and invades the screwing space to support a side wall vertical face of the transverse nut when the transverse nut has a loosening rotation trend, and therefore loosening of the transverse nut under the condition of fixing of the transverse bolt is prevented, and firm connection of the rail brace and a rail is guaranteed. The nut locking device has a simple structure, can realize locking after the transverse nut is screwed, is simple and convenient to mount and dismount, does not influence the original rail brace structure and bolt length, has stronger universality, and is suitable for all types of rail braces for rails to realize nut locking of the transverse bolt penetrating through the rails and the rail braces.

Description

Rail brace structure for rail capable of realizing bolt looseness prevention

Technical Field

The utility model relates to the technical field of railway equipment, in particular to a rail brace structure for a rail, which can realize bolt looseness prevention.

Background

In order to effectively resist the lateral forces generated by contact between the wheels and the rail, a rail brace is usually mounted on the side of the rail away from the centerline of the rail. The existing rail brace is generally installed in a turnout or on the outer side of an outer strand rail of a small-radius curve rail of a common rail, so that the phenomenon that the rail is transversely displaced and even overturned due to overlarge transverse force generated when a train passes through the rail brace is prevented.

The existing rail brace is usually connected with a rail through a transverse bolt and a nut, however, in the using process of the rail brace, the transverse bolt and the nut of the rail brace are easy to loosen, so that the rail brace is insecure in connection with the rail, the difficulty of line maintenance is increased, and the potential safety hazard of driving is easy to form.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rail brace structure for a rail, which can realize bolt looseness prevention and can prevent a nut for transversely installing a bolt on a rail brace from loosening in the using process.

The embodiment of the utility model is realized by the following steps:

in a first aspect, the utility model provides a rail brace structure for a rail, which can realize bolt looseness prevention and comprises a rail brace, a transverse bolt, a washer, a transverse nut and a clamping piece; the vertical wall of the rail support is provided with a first through hole, and the transverse bolt penetrates through the rail and the first through hole and is matched with the transverse nut and the washer; a rotation stopping boss is convexly arranged around the first through hole on the vertical wall, and the rotation stopping boss surrounds a screwing space for screwing the transverse nut; the clamping piece is used for being installed on the rotation stopping boss and invading the screwing space so as to prop against the side wall vertical face of the transverse nut under the condition that the transverse nut has a loosening and rotating tendency.

In an alternative embodiment, the rotation stopping boss is provided with a second through hole, the second through hole is communicated with the screwing space, and the clamping piece penetrates through the second through hole and at least partially invades into the screwing space.

In an optional implementation manner, the first through hole is a waist-shaped hole, the opening direction of the second through hole is parallel to the extending direction of the waist-shaped hole, and the rotation stopping boss faces the wall surface of the waist-shaped hole and is matched with the shape of the waist-shaped hole.

In an optional embodiment, the rotation stopping boss is provided with a groove, the groove is communicated with the second through hole, the groove is communicated with the screwing space, and the clamping piece penetrates through the second through hole and is at least partially accommodated in the groove and the screwing space.

In an optional embodiment, the retaining member is a split pin, and the split pin includes a supporting portion in a cylindrical shape, and the supporting portion is inserted into the second through hole and intrudes into the screwing space to support a sidewall vertical surface of the transverse nut under a condition that the transverse nut has a loosening rotation tendency.

In an alternative embodiment, a portion of the retainer intruding into the screwing space intersects with a circumscribed circle formed by a rotation trajectory of the lateral nut.

In an alternative embodiment, a portion of the retainer intruding into the screwing space abuts against a side wall elevation of the lateral nut.

In an alternative embodiment, the portion of the retainer that intrudes into the screwing space is provided spaced apart from the lateral nut.

In an alternative embodiment, the rotation stop boss comprises at least one boss, and at least one boss surrounds a space for screwing the nut.

In an optional embodiment, the rotation stopping boss comprises two arc-shaped bosses, the two arc-shaped bosses are arranged oppositely, the two opposite wall surfaces of the arc-shaped bosses are arc-shaped curved surfaces or polygonal curved surface contours, and the two arc-shaped curved surfaces or polygonal curved surface contours enclose a space for screwing the nut.

In an alternative embodiment, the diameter of a circle formed by the projection of the screwing space on the vertical wall is larger than the diameter of a circle formed by the rotation track of the transverse nut.

The rail brace structure for the rail, which can realize bolt looseness prevention, provided by the embodiment of the utility model has the beneficial effects that: the rail brace is characterized in that a rotation stopping boss is convexly arranged around a first through hole in a vertical wall of the rail brace, the rotation stopping boss is enclosed to form a screwing space for screwing the transverse nut, the clamping piece is arranged on the rotation stopping boss and invades the screwing space to support a side wall vertical face of the transverse nut under the condition that the transverse nut has a loosening rotation trend, and therefore the loosening condition of the transverse bolt and the transverse nut is prevented, and the rail brace is guaranteed to be firmly connected with a rail. The utility model has simple structure, can effectively realize the anti-loosening after the transverse nut is screwed, is simple and convenient to install and disassemble, does not influence the original rail brace structure and the bolt length, has stronger universality and is suitable for all types of rail braces for rails to realize the nut anti-loosening of the transverse bolt penetrating through the rails and the rail braces.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a rail brace structure for a rail, which is provided by an embodiment of the present invention and can achieve bolt looseness prevention;

FIG. 2 is a schematic diagram of a portion of a rail brace according to an embodiment of the present invention;

FIG. 3 is a schematic view of a cotter pin according to an embodiment of the present invention;

FIG. 4 is a schematic view of a lateral nut holding state 1 according to an embodiment of the present invention;

FIG. 5 is a schematic view of a lateral nut holding state provided in the embodiment of the present invention 2;

fig. 6 is a schematic diagram of a waist-shaped hole structure of a rail brace structure provided in an embodiment of the present invention;

fig. 7 is a schematic structural diagram 1 of a rail brace for a railway rail according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a rail brace for a railway rail according to an embodiment of the present invention 2.

10-rail brace structure for rail capable of realizing bolt looseness prevention; 100-rail brace; 110 — a first via; 111-kidney shaped holes; 130-rotation stopping bosses; 131-a screwing space; 133-a second via; 135-a groove; 137-arc boss; 139-arc curved surface; 150-standing a wall; 170-side ribs; 200-transverse bolts; 300-a transverse nut; 400-a retaining member; 410-cotter pin; 411-head; 413-a holding portion; 415-tail; 500-a gasket; 20-the railway track.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The existing rail brace is used, after the rail is subjected to vibration impact of wheels or rusted by connecting bolts, transverse connecting bolts and nuts of the rail brace are easy to loosen, so that the rail brace is not firm in connection with the rail, the difficulty of line maintenance can be increased, and the potential safety hazard of driving can be increased.

Referring to fig. 1 and 2, the present invention provides a rail brace structure 10 for a rail, which is capable of preventing a bolt from loosening, and is used for connecting with a rail 20 to support the rail 20 and resist a lateral force applied to the rail 20 by a wheel during a driving process, so as to ensure that the rail 20 maintains a stable installation state during the driving process of a train.

In the present embodiment, the rail brace structure 10 for a rail capable of preventing the bolt from loosening includes a rail brace 100, a transverse bolt 200, a transverse nut 300, a retainer 400, and a washer 500. The vertical wall 150 of the rail brace 100 is opened with a first through hole 110, and the transverse bolt 200 passes through the rail 20 and the first through hole 110 and is engaged with the transverse nut 300 and the washer 500. The rotation stopping boss 130 is protruded around the first through hole 110 of the vertical wall 150, and the rotation stopping boss 130 encloses a screwing space 131 for screwing the transverse nut 300. The retainer 400 is adapted to be mounted to the rotation stop boss 130 and intrudes into the screw space 131 to hold the lateral nut 300 in case the lateral nut 300 has a tendency to loose rotation.

In this embodiment, the rail brace 100 further includes two side ribs 170, and two ends of the vertical wall 150 are respectively connected to the side ribs 170 vertically. The cross bolt 200 extends through the rail 20 and the rail brace 100 and cooperates with the cross nut 300 and the washer 500 to maintain the rail brace 100 in abutting engagement with the rail 20. It should be understood that, in the embodiment of the present invention, it is within the scope of the present invention as long as the rail brace 100 is provided with the first through hole 110, and the rotation stopping boss 130 is disposed around the first through hole 110 to prevent the lateral nut 300 from loosening. The difference of the rail brace 100 caused by the difference of other parts or structures of the rail brace 100 does not affect the protection scope of the present invention.

In the present embodiment, the screw space 131 may accommodate the lateral nut 300 and the washer 500, and the lateral nut 300 may freely rotate within the screw space 131. The transverse bolt 200 may be a T-bolt and the transverse nut 300 may be a hexagonal nut. It is understood that, in other embodiments of the present invention, the transverse bolt 200 and the transverse nut 300 may be other bolts and other nuts, and the washer 500 may be a flat washer, a spring washer, or the like, and whether the flat washer, the spring washer, or other washers, it does not affect the penetration of the retaining member 400 into the rotation stop boss 130 to achieve the anti-loosening of the transverse nut 300, and is not limited in particular.

In this embodiment, the rotation stopping bosses 130 may be welded to the vertical wall 150 of the rail brace 100, or may be cast integrally with the rail brace 100, so that the rotation stopping bosses are suitable for all types of rail braces 100, and are not limited herein. The rotation stopping boss 130 is higher than the bottom wall of the transverse nut 300 when the transverse nut 300 is completely matched with the transverse bolt 200 and lower than the top wall of the transverse nut 300, so that the transverse nut 300 can be conveniently screwed to be matched with the transverse bolt 200 in an installing mode or detached from the transverse bolt 200.

In the present embodiment, the retaining member 400 is mounted on the rotation stopping boss 130 and extends into the screwing space 131 to abut against the side wall of the transverse nut 300 under the condition that the transverse nut 300 has a loose rotation tendency, so as to prevent the transverse bolt 200 and the transverse nut 300 from being loosened, and ensure that the rail brace 100 is firmly connected with the rail 20. Therefore, the installation and the disassembly of the transverse nut 300 are not influenced, the structure of the rail brace 100 and the length of the bolt are not influenced, and meanwhile, the installation is convenient for operators.

It should be noted that the tendency of loose rotation may be that the lateral nut 300 will be loosely rotated, but loose rotation has not yet occurred; it is also possible to perform the loosening rotation of the lateral nut 300 already within a small range, but the lateral nut 300 cannot continue the loosening rotation due to the abutting action of the retainer.

Further, the rotation stopping boss 130 is provided with a second through hole 133, the second through hole 133 is communicated with the screwing space 131, and the clamping member 400 penetrates through the second through hole 133 and at least partially invades into the screwing space 131.

In this embodiment, the second through hole 133 may be a through hole penetrating through the rotation stopping boss 130, or may be two through holes opened oppositely, and the specific arrangement is determined according to the specific structure of the rotation stopping boss 130, and is not limited herein.

Further, the rotation stopping boss 130 is provided with a groove 135, the groove 135 is communicated with the second through hole 133, the groove 135 is communicated with the screwing space 131, and the retaining member 400 passes through the second through hole 133 and is at least partially accommodated in the groove 135 and the screwing space 131.

In the embodiment, the groove 135 is formed on the boss wall of the rotation-stopping boss 130 facing the transverse nut 300, so that the groove 135 is respectively communicated with the second through hole 133 and the screwing space 131, and after the retaining member 400 passes through the second through hole 133, at least a part of the retaining member 400 is accommodated in the groove 135 and the screwing space 131.

Further, referring to fig. 2 to fig. 3, the retaining member 400 is a split pin 410, the split pin 410 includes a supporting portion 413 in a cylindrical shape, and the supporting portion 413 is inserted into the second through hole 133 and intrudes into the screwing space 131 to support the sidewall vertical surface of the transverse nut 300 under the condition that the transverse nut 300 has a loose rotation tendency.

In the present embodiment, the shape and size of the abutting portion 413 are adapted to the shape and size of the second through hole 133, so that the abutting portion 413 can smoothly enter the second through hole 133.

Alternatively, the cotter pin 410 may be made of a rigid material having good elasticity. The retaining member 400 may be a cotter 410, or may be other pin-type parts capable of preventing the transverse nut from rotating 300 or similar to the cotter 410, for example, the cotter 410 may be a strip-shaped part matching the second through hole 133, such as a strip-shaped iron sheet, an iron wire, or a pin, as long as it is ensured that the cotter 410 can enter the second through hole 133 and abut against the transverse nut 300, and no specific limitation is made herein.

Further, the cotter 410 also includes a head 411 and a tail 415. The head 411, the holding portion 413, and the tail 415 are connected in sequence. The head 411 is a ring structure, the tail 415 is a column that can be opened by pulling, and when the cotter 410 is inserted into the second through hole 133, the head 411 and the tail 415 are respectively located outside two ends of the second through hole 133 to prevent the cotter 410 from being removed from the second through hole 133.

In the embodiment, the head portion 411, the abutting portion 413 and the tail portion 415 of the cotter 410 are generally integrated, and before the cotter 410 is mounted on the rotation stopping boss 130, the tail portion 415 of the cotter 410 is two closed columns to facilitate the cotter 410 to pass through the second through hole 133. When the cotter pin 410 is inserted into the second through hole 133, the head 411 of the cotter pin 410 is positioned at the upper end of the second through hole 133 and restricts the cotter pin 410 from continuing to pass through the second opening. The tail 415 of the cotter 410 is located at the lower end of the second through hole 133, and the tail 415 of the cotter 410 may be pulled out to form a V shape, or the tail 415 of the cotter 410 may be twisted several times, but is not limited thereto, as long as the function of preventing the cotter 410 from being removed from the second through hole 133 is achieved, and the function is not limited in detail.

Further, referring to fig. 4 to 5, a portion of the retainer 400 intruding into the screwing space 131 intersects with a circumscribed circle formed by a rotation trajectory of the lateral nut 300.

In the present embodiment, the rotation trajectory (shown by the dotted line) is a circumscribed circle formed by the motion trajectory of the lateral wall of the lateral nut 300 during screwing. Since the portion of the retainer 400 intruding into the screw space 131 intersects with the rotation trajectory of the lateral nut 300, when the retainer 400 is mounted on the rotation-stopping boss 130, the portion of the retainer 400 intruding into the screw space 131 is in contact with the outer wall of the lateral nut 300, and the lateral nut 300 is prevented from rotating in the screw space 131 because the retainer 400 occupies the space in which the lateral nut 300 rotates.

Further, the part of the retainer 400 intruding into the screwing space 131 abuts against the side wall elevation of the cross nut 300; alternatively, the portion of the holder 400 intruding into the screw space 131 is spaced apart from the lateral nut 300.

In the embodiment, after the transverse nut 300 is completely matched with the transverse bolt 200 in the screwing space 131, and the retainer 400 is installed on the rotation stopping boss 130, because the angle of the transverse nut 300 is not fixed, as shown in fig. 4, the part of the retainer 400 that intrudes into the screwing space 131 can be separated from the transverse nut 300 by a certain distance, and after the transverse nut 300 is loosened and rotated in a small range, the transverse nut 300 is connected with the retainer 400 in a propping manner, so that the transverse nut 300 is prevented from continuing to rotate; as shown in fig. 5, the portion of the retainer 400 intruding into the screwing space 131 can also be just connected with the transverse nut 300 in a butting manner, and the transverse nut 300 is directly prevented from rotating.

Further, the rotation stopping boss comprises at least one boss, and the at least one boss surrounds the screwing space.

It is understood that, in various embodiments of the present invention, the rotation-stopping protrusion 130 may be an annular protrusion, the annular protrusion is provided with at least one second through hole 133, the retaining member 400 can penetrate through the second through hole and partially intrude into the screwing space 131 and can abut against the transverse nut 300, but not limited thereto, the rotation-stopping protrusion 130 may also be a plurality of protrusions, for example, 4 protrusions are symmetrically arranged, as long as the protrusion is provided with the second through hole 133, and the retaining member 400 can pass through the second through hole 133, so that the retaining member 400 at least partially intrudes into the screwing space 131 and can abut against the transverse nut 300 to prevent the transverse nut 300 from rotating when the transverse nut has a loose rotation tendency, and is not particularly limited herein.

Further, referring to fig. 2, the rotation stopping protrusion 130 includes two arc-shaped protrusions 137, the two arc-shaped protrusions 137 are disposed opposite to each other, and the opposite wall surfaces of the two arc-shaped protrusions 137 are both arc-shaped curved surfaces 139 or polygonal curved surface contours, and the two arc-shaped curved surfaces 139 or polygonal curved surface contours surround the screwing space 131.

In the present embodiment, two arc-shaped bosses 137 are symmetrically disposed on two sides of the first through hole 110, and an approximately cylindrical screwing space 131 is defined by two arc-shaped curved surfaces 139, or an approximately cylindrical space for screwing the nut is defined by two or polygonal curved surface profiles.

Further, the diameter of a circle formed by projection of the screw space 131 on the standing wall 150 is larger than that of a circle formed by the rotation trajectory of the cross nut 300.

In the present embodiment, the diameter of the circle formed by the projection of the screwing space 131 on the vertical wall 150 is slightly larger than the diameter of the circumscribed circle formed by the rotation track of the transverse nut 300, so as to ensure that the transverse nut 300 can rotate in the screwing space 131, and also ensure that the retaining member 400 can at least partially intrude into the screwing space 131 after passing through the second through hole 133, thereby preventing the transverse nut 300 from rotating.

Further, referring to fig. 6, the first through hole 110 is a waist-shaped hole 111, the opening direction of the second through hole 133 is parallel to the extending direction of the waist-shaped hole 111, and the wall surface of the rotation-stopping boss 130 facing the waist-shaped hole 111 is adapted to the shape of the waist-shaped hole 111.

In the present embodiment, the waist-shaped hole 111 (shown by a dotted line in fig. 6) is a vertical oblong hole, and both the opening direction of the second through hole 133 and the extending direction of the waist-shaped hole 111 are the a direction shown in fig. 6. The size of the kidney-shaped hole 111 is slightly larger than the diameter of the transverse bolt 200 so that the transverse bolt 200 just passes through the first through-hole 110. The kidney-shaped hole 111 can be understood as an elongated through hole of the first through hole 110, and correspondingly, the rotation stop boss 130 fitted to the kidney-shaped hole can be understood as an elongated boss of the arc-shaped boss 137. Through setting up first through-hole 110 to waist shape hole 111, and make the wall of spline boss 130 set up to with the shape looks adaptation in waist shape hole 111 to make horizontal bolt 200 when there is the deviation in vertical direction, still can freely install, and do not influence horizontal nut 300 and locking.

In this embodiment, the rail brace 100 may be the rail brace 100 shown in fig. 7 or fig. 8, which are provided with the rotation stopping bosses 130 to prevent the transverse nut 300 from loosening. But not limited thereto, the rail brace 100 shown in fig. 6 or fig. 7 is only an example, and the rail brace 100 may also have other structures, which are not limited herein.

It can be understood that the rail brace for the turnout appears in various different types, different specifications or different structures according to the use occasions (such as subways, tramways, high-speed railways, heavy-duty railways, common speed railways, mine railways and the like) of the rail brace for the turnout, the difference of various rail types, the difference of installation positions of the turnout or the rails, the difference of rail fastener forms, whether a transverse through hole is arranged on a rail brace vertical wall or a plurality of through holes are arranged, and the like, but no matter what type of rail brace, the vertical walls and the side ribs are arranged on the rail supports, the vertical walls of the rail supports are generally parallel to or form an included angle (the included angle is not more than 3 degrees) with the rail web median plane (a plane which is perpendicular to the rail bottom surface and is formed by the rail web central lines of the front end surface and the rear end surface of the rail), the differences among various rail supports are designed according to various functional requirements such as installation, adjustment or vibration reduction besides the vertical wall and the side ribs. Therefore, it can be understood that no matter how the form of the rail brace is changed, it is within the scope of the present invention that the rail brace is provided with the mounting hole for the transverse bolt to pass through and the rotation stopping boss capable of preventing the transverse nut from loosening. In addition, the realization of the anti-loosening function of the utility model is not affected by the differences of the forms of the clamping pieces (such as other strip-shaped iron parts similar to the cotter pin), as long as the clamping pieces can support the transverse nut to prevent the transverse nut from loosening, so other clamping pieces which play the same role as the clamping pieces in the utility model are within the protection scope of the utility model.

In summary, the rail brace structure 10 for a rail, which is provided by the present invention and can realize bolt looseness prevention, has a simple structure and is convenient to operate, and the clamping member 400 is installed on the rotation stopping boss 130 and extends into the screwing space 131 to abut against the transverse nut 300 under the condition that the transverse nut 300 has a loosening rotation tendency, so as to effectively prevent the transverse bolt 200 and the transverse nut 300 from loosening after being screwed up, thereby ensuring that the rail brace 100 is firmly connected with the rail 20, ensuring that a train can stably run, avoiding the occurrence of traffic safety hidden troubles, simultaneously facilitating the daily maintenance and overhaul of operators, and reducing the difficulty of line maintenance. The rotation stopping boss 130 does not affect the installation and the disassembly of the transverse nut 300, does not affect the structure of the rail brace 100 and the length of the bolt, and is convenient to operate. The rotation stopping boss 130 is arranged on the rail brace 100 in a welding or casting mode, so that the universality is strong, and the locking device is suitable for rail braces of all types to realize the locking of the transverse nut 300. The rotation stopping boss 130 is matched with the cotter pin 410, so that the transverse nut 300 can be effectively prevented from loosening.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A rail brace structure for a rail capable of realizing bolt looseness prevention is characterized by comprising a rail brace, a transverse bolt, a gasket, a transverse nut and a clamping piece;

the vertical wall of the rail support is provided with a first through hole, and the transverse bolt penetrates through the rail and the first through hole and is matched with the transverse nut and the washer;

a rotation stopping boss is convexly arranged around the first through hole on the vertical wall, and the rotation stopping boss surrounds a screwing space for screwing the transverse nut;

the clamping piece is used for being installed on the rotation stopping boss and invading the screwing space so as to prop against the side wall vertical face of the transverse nut under the condition that the transverse nut has a loosening and rotating tendency.

2. The rail brace structure for railway capable of preventing bolt loosening as claimed in claim 1, wherein the rotation stopping boss is provided with a second through hole, the second through hole is communicated with the screwing space, and the retaining member passes through the second through hole and at least partially intrudes into the screwing space.

3. The rail brace structure capable of preventing bolt looseness of claim 2, wherein the first through hole is a kidney-shaped hole, the opening direction of the second through hole is parallel to the extending direction of the kidney-shaped hole, and the wall surface of the rotation stopping boss facing the kidney-shaped hole is matched with the shape of the kidney-shaped hole.

4. A rail brace structure for a railway track capable of preventing loosening of bolts as claimed in claim 2, wherein the rotation-stopping boss is provided with a groove, the groove is communicated with the second through hole, the groove is communicated with the screwing space, and the retaining member passes through the second through hole and is at least partially accommodated in the groove and the screwing space.

5. The rail brace structure for railway capable of achieving bolt looseness prevention as claimed in claim 2, wherein the holding member is a split pin, and the split pin includes an abutting portion in a column shape, and the abutting portion is used for being inserted into the second through hole and intruding into the screwing space so as to abut against a side wall vertical surface of the transverse nut in a case where the transverse nut has a tendency of loosening and rotating.

6. A rail brace structure for a railway capable of preventing loosening of a bolt according to claim 1, wherein a portion of the retaining member intruding into the screwing space intersects with a circumscribed circle formed by a rotation locus of the cross nut.

7. A rail brace structure for a railway capable of preventing loosening of a bolt according to claim 6, wherein a portion of said holding member intruding into said screwing space abuts against a side wall surface of said lateral nut.

8. A rail brace structure for a railway in which bolt looseness prevention is achieved according to claim 6, wherein a portion of said holding member which intrudes into said screwing space is provided at a distance from said lateral nut.

9. A rail brace structure for a railway capable of preventing loosening of a bolt according to claim 1, wherein the rotation-stopping boss comprises at least one boss, and at least one boss defines a space for screwing the nut.

10. The rail brace structure for the rail capable of preventing the bolt from loosening as claimed in claim 1, wherein the rotation stopping boss comprises two arc-shaped bosses, the two arc-shaped bosses are arranged oppositely, the opposite wall surfaces of the two arc-shaped bosses are both arc-shaped curved surfaces or polygonal curved surface contours, and the two arc-shaped curved surfaces or polygonal curved surface contours enclose a space for screwing the nut.

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