Connecting assembly for railway construction

Abstract

The utility model discloses a connecting component for railway construction, which comprises a screw rod penetrating through a sleeper, a clamping plate is arranged on the screw rod, clamping strips are arranged on two sides of the clamping plate, the clamping strips on two sides and the clamping plate form a clamping groove, the upper surface of a pressing plate is positioned in the clamping groove, a locknut is in threaded connection with the screw rod, and the locknut is in threaded connection with the pressing plate. The pressing plate can be effectively prevented from rotating due to friction force through the clamping plate, the accuracy of the position of the pressing plate is kept, and pressing plate breakage caused by uneven stress in the later period is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the fastener technical field, more specifically relates to a railway construction is with connecting component. BACKGROUND

[0002] In the construction of railway, need to fix the rail on the sleeper, the prior art generally will use the pressing plate or the fastener to press on the transverse plate under the rail, then use the bolt to pass through the pressing plate or the fastener, again use the nut to be pressed in the pressing plate or the fastener.

[0003] In the rail using the pressing plate as the compression piece, the one end of the pressing plate is pressed on the transverse plate under the rail, the other end is contacted on the support block, and the bolt is located between the support block and the rail transverse plate, and the pressing plate is a certain distance away from the sleeper, when the nut is screwed and pressed on the pressing plate, the friction force when the hand nut of the pressing plate rotates can make the pressing plate rotate with the nut, the end of the pressing plate pressed on the rail is offset, the pressing plate is unevenly stressed, and the pressing plate is easily broken when the train passes. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides a connecting assembly for railway construction, which prevents the pressing plate from rotating under the friction force when being pressed, and avoids uneven stress and breaking of the pressing plate in the later period.

[0005] To achieve the above object, the utility model provides the following technical scheme: a connecting assembly for railway construction, comprising a screw rod penetrating through a sleeper, a clamping plate is arranged on the screw rod, clamping strips are arranged on both sides of the clamping plate, the clamping strips and the clamping plate form a clamping groove, the upper surface of the pressing plate is located in the clamping groove, and a lock nut is threadedly connected to the screw rod.

[0006] Further, the lock nut comprises a first subnut and a second subnut, and the first subnut and the second subnut are both threadedly connected to the screw rod, one side of the first subnut is in contact with the pressing plate, the other side of the first subnut is provided with a boss, and the second subnut is provided with a groove corresponding to the boss.

[0007] Further, the depth of the groove is greater than the height of the boss.

[0008] Further, the side surface of the boss is an inclined surface, the inner wall of the groove is an inclined surface, and the side surface of the boss is parallel to the inner wall of the groove.

[0009] Further, the diameter of the top of the boss is less than the diameter of the bottom of the groove.

[0010] Further, the second sub-nut is provided with a convex ring on the end close to the first sub-nut, and one side of the convex ring extends to the side of the second sub-nut in contact with the first sub-nut, and the side of the second sub-nut in contact with the first sub-nut is provided with an anti-loosening tooth.

[0011] Further, a gasket is arranged between the end of the screw rod and the sleeper.

[0012] Compared with the prior art, the utility model has the advantages that when the clamping groove on the clamping plate is clamped on the pressing plate, and then the lock nut is tightened on the pressing plate, the pressing plate can be effectively prevented from rotating due to friction during the tightening process, the accuracy of the position of the pressing plate is maintained, and the pressing plate is prevented from being broken due to uneven stress in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a result schematic view of the connecting assembly for railway construction of the utility model;

[0014] Figure 2 It is a structure schematic view of the lock nut in the connecting assembly for railway construction of the utility model;

[0015] Figure 3 It is Figure 2 It is a side view of the utility model;

[0016] Figure 4 It is a plane structure schematic view of the pressing plate in the connecting assembly for railway construction of the utility model;

[0017] Figure 5 It is a structure schematic view when the connecting assembly for railway construction of the utility model connects the pressing plate.

[0018] The drawings show: screw rod 1, clamping plate 2, clamping strip 3, clamping groove 4, lock nut 5, first sub-nut 6, second sub-nut 7, convex platform 8, recess 9, convex ring 10, gasket 11, pressing plate 12, sleeper 13. DETAILED DESCRIPTION

[0019] In the description of the utility model, it should be explained that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0020] In addition, the terms "first", "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first", "second" features can explicitly or implicitly include one or more features, and in the description of the utility model, the meaning of "several", "several" is two or more than two, unless otherwise explicitly specified.

[0021] Referring to Figures 1 to 5 Further illustrate the utility model.

[0022] A connecting assembly for railway construction, comprising a screw rod 1 penetrating through a sleeper 13, a clamping plate 2 is arranged on the screw rod 1, clamping strips 3 are arranged on both sides of the clamping plate 2, the clamping strips 3 on both sides and the clamping plate 2 form a clamping groove 4, the upper surface of a pressing plate 12 is located in the clamping groove 4, and a lock nut 5 is threadedly connected to the screw rod 1.

[0023] As Figures 1 to 5 shown, when connecting, the clamping groove 4 on the clamping plate 2 is clamped on the pressing plate 12, and then the lock nut 5 is tightened on the pressing plate 12, and when the lock nut 5 is tightened, the pressing plate 12 can be effectively prevented from rotating due to friction, the accuracy of the position of the pressing plate 12 is maintained, and the breaking of the pressing plate 12 caused by uneven stress in the later stage is avoided.

[0024] As Figure 1 and Figure 2 shown, preferably in the present example, the lock nut 5 comprises a first sub-nut 6 and a second sub-nut 7, and the first sub-nut 6 and the second sub-nut 7 are both threadedly connected to the screw rod 1, one side of the first sub-nut 6 is in contact with the pressing plate 12, the other side of the first sub-nut 6 is provided with a boss 8, and the second sub-nut 7 is provided with a groove 9 corresponding to the boss 8.

[0025] Specifically, when connecting, the first sub-nut 6 is first tightened and pressed on the pressing plate 12, and then the second sub-nut 7 is tightened and pressed on the first sub-nut 6, so that the two nuts are used to prevent loosening.

[0026] As Figure 2 shown, preferably in the present example, the depth of the groove 9 is greater than the height of the boss 8.

[0027] As Figure 2 shown, preferably in the present example, the side surface of the boss 8 is an inclined surface, the inner wall of the groove 9 is an inclined surface, and the side surface of the boss 8 is parallel to the inner wall of the groove 9.

[0028] As Figure 2 shown, preferably in the present example, the diameter of the top of the boss 8 is less than the diameter of the bottom of the groove 9.

[0029] AsFigure 2 and Figure 3 As shown in the figure, preferably in the embodiment, the second sub-nut 7 is provided with a convex ring 10 on the end close to the first sub-nut 6, and one side of the convex ring 10 extends to the side of the second sub-nut 7 in contact with the first sub-nut 6, and the side of the second sub-nut 7 in contact with the first sub-nut 6 is provided with an anti-loosening tooth (not shown in the figure).

[0030] Specifically, the diameter of the convex ring 10 is slightly larger than the outer diameter of the second sub-nut 7.

[0031] Specifically, the provision of the convex ring 10 increases the area of the side of the second sub-nut 7, thereby increasing the area of the anti-loosening tooth and improving the anti-loosening effect between the first sub-nut 6 and the second sub-nut 7.

[0032] As shown in the figure, Figure 1 and Figure 5 As shown in the figure, preferably in the embodiment, the end of the screw rod 1 is provided with a gasket 11 between the end and the sleeper 13.

[0033] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiment, and any technical solution falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A connecting component for railway construction, characterized in that: The device includes a screw that passes through a sleeper, a retaining plate on the screw, retaining strips on both sides of the retaining plate, the retaining strips on both sides forming a retaining groove with the retaining plate, the upper surface of the pressure plate being located in the retaining groove, and an anti-loosening nut being threaded onto the screw. The anti-loosening nut includes a first sub-nut and a second sub-nut, both of which are threadedly connected to the screw. One side of the first sub-nut contacts the pressure plate, and a boss is provided on the other side of the first sub-nut. The second sub-nut is provided with a groove corresponding to the boss.

2. The connecting component for railway construction according to claim 1, characterized in that: The depth of the groove is greater than the height of the boss.

3. The connecting component for railway construction according to claim 1, characterized in that: The side of the boss is inclined, the inner wall of the groove is inclined, and the side of the boss is parallel to the inner wall of the groove.

4. The connecting component for railway construction according to claim 1, characterized in that: The diameter of the top of the boss is smaller than the diameter of the bottom of the groove.

5. The connecting component for railway construction according to claim 1, characterized in that: The second sub-nut has a protruding ring at its end near the first sub-nut, and one side of the protruding ring extends toward the first sub-nut to the side where the second sub-nut contacts the first sub-nut. Anti-loosening teeth are provided on the side where the second sub-nut contacts the first sub-nut.

6. The connecting component for railway construction according to claim 1, characterized in that: A washer is provided between the end of the screw and the sleeper.

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