Screw structure for railway box

Abstract

The utility model relates to the technical field of screw structures, in particular to a screw structure for a railway box, which comprises a bolt and a locking nut, the locking nut is in threaded connection with the bolt, an anti-loosening mechanism is arranged between the locking nut and the bolt, and the anti-loosening mechanism is used for increasing friction between the bolt and a mounting part. An adjusting mechanism is arranged on the bolt, the adjusting mechanism is located between the anti-loosening mechanism and a nut at one end of the bolt, and the adjusting mechanism is used for adjusting the position of the nut at one end of the bolt. Furthermore, the anti-loosening mechanism and the adjusting mechanism are arranged on the bolt to be matched, the anti-loosening mechanism prevents the bolt from slipping on the box body due to vibration to cause loosening of the bolt, the adjusting mechanism adjusts the position of a nut of the bolt, the bolt is convenient to disassemble and maintain in the later period, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of screw structure technology, and in particular to a screw structure for railway boxes. Background Technology

[0002] The railway is equipped with junction boxes, which are locked by locks. Due to the wide variety of locks available, the boxes are equipped with different locks for locking and fixing. During maintenance, it is necessary to wear many opening tools that match the locks. On the one hand, this increases the weight of the tools worn by maintenance personnel, and on the other hand, the large number of tools reduces the opening efficiency of the boxes and increases the workload, resulting in a significant decrease in work efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: in order to solve the problem that there are many types of existing locks, and the box is equipped with different locks for locking and fixing. During maintenance, many opening tools that match the locks need to be worn. On the one hand, this increases the weight of the tools worn by maintenance personnel, and on the other hand, the numerous tools reduce the opening efficiency of the box and increase the workload, resulting in a significant reduction in work efficiency. Now, a screw structure for railway boxes is provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a screw structure for railway boxes, including bolts and locking nuts, wherein the locking nuts are threadedly connected to the bolts, and an anti-loosening mechanism is provided between the locking nuts and the bolts. The anti-loosening mechanism is used to increase the friction between the bolts and the mounting parts. An adjustment mechanism is provided on the bolts, and the adjustment mechanism is located between the anti-loosening mechanism and the nut at one end of the bolts. The adjustment mechanism is used to adjust the position of the nut at one end of the bolts.

[0005] The anti-loosening mechanism includes an anti-loosening nut, which is threaded onto the bolt and located between the locking nut and the nut at one end of the bolt. The anti-loosening nut has several protrusions on one end of its contact surface with the installation part. Compared to existing technologies, this solution unifies the locks of the box into a bolt structure, eliminating the need for multiple different tools for disassembly. Furthermore, by incorporating an anti-loosening mechanism and an adjustment mechanism on the bolt, the anti-loosening mechanism prevents the bolt from slipping on the box body due to vibration, thus preventing loosening. The adjustment mechanism adjusts the position of the bolt nut, facilitating bolt disassembly and subsequent maintenance, thereby improving work efficiency.

[0006] To increase the friction between the locking nut and the mounting part of the housing, in some preferred embodiments, the end of the locking nut near the mounting part is provided with a flange that protrudes radially outward. By providing an outwardly protruding flange at the end of the locking nut near the mounting part, the flange increases the contact surface between the protrusion on the locking nut and the mounting part, thereby increasing the friction between the protrusion and the contact surface and ensuring that the locking nut is stable and reliable in preventing loosening.

[0007] To increase the friction between the protrusion and the contact surface, in some preferred embodiments, the contact surface between the protrusion and the mounting portion is a plane. By making the contact surface between the protrusion and the mounting portion plane, the contact area with the mounting portion is increased, ensuring the friction between the protrusion and the contact surface.

[0008] In some preferred embodiments, the protrusions are evenly distributed along the circumference.

[0009] To facilitate the assembly of bolts, lock nuts, and tightening nuts, in some preferred embodiments, the nuts, lock nuts, and tightening nuts at one end of the bolt are all of the same specification. By standardizing the nuts, lock nuts, and tightening nuts at one end of the bolt to a single specification, a single tool can be used to assemble the bolts, lock nuts, and tightening nuts respectively.

[0010] To implement the adjustment mechanism, in some preferred embodiments, the adjustment mechanism includes a sleeve that is fitted onto the bolt. By fitting the sleeve between the lock nut and the nut at one end of the bolt, and using sleeves of different axial lengths according to the depth of the countersunk hole on the housing, the nut at one end of the bolt can protrude, facilitating subsequent bolt disassembly.

[0011] To achieve the desired sleeve design, in some preferred embodiments, the sleeve is a ring structure. Setting the sleeve in a ring structure simplifies the design and facilitates manufacturing and installation.

[0012] The beneficial effects of this utility model are as follows: When using the screw structure for railway boxes, this utility model unifies the locks of the boxes into a bolt structure, eliminating the need for multiple different tools for disassembly. Furthermore, by setting anti-loosening and adjustment mechanisms on the bolts, the anti-loosening mechanism prevents the bolts from slipping on the box body due to vibration, thus preventing them from loosening. The adjustment mechanism adjusts the position of the bolt nuts, facilitating bolt disassembly and subsequent maintenance, thereby improving work efficiency. This avoids the problems of existing locks being numerous and requiring different locks for locking and fixing the boxes. During maintenance, many opening tools matching the locks are needed, which increases the weight of the tools worn by maintenance personnel and reduces the efficiency of opening the boxes, increases workload, and leads to a significant decrease in work efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention. Figure 1 ;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 2;

[0016] Figure 3 This is the front view of this utility model;

[0017] Figure 4 This is a left view of the present invention;

[0018] Figure 5 This is a top view of the present invention;

[0019] Figure 6 This is a diagram showing the state of this utility model in use.

[0020] In the diagram: 1. Bolt, 101. Nut, 102. Threaded end, 2. Lock nut, 3. Anti-loosening nut, 4. Protrusion, 5. Flange, 6. Sleeve. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments:

[0022] This utility model is not limited to the following specific embodiments. Those skilled in the art can implement this utility model using various other specific embodiments based on the disclosed content. Any modifications or alterations to the design structure and concept of this utility model also fall within the protection scope of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this utility model can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1-6 As shown, a screw structure for railway boxes includes a bolt 1 and a locking nut 2. The locking nuts 2 are threaded onto the bolt 1. An anti-loosening mechanism is provided between the locking nuts 2 and the bolt 1. The anti-loosening mechanism is used to increase the friction between the bolt 1 and the mounting part to prevent the bolt 1 from loosening. An adjustment mechanism is provided on the bolt 1. The adjustment mechanism is located between the anti-loosening mechanism and the nut 101 at one end of the bolt 1. The adjustment mechanism is used to adjust the position of the nut 101 at one end of the bolt 1.

[0026] The anti-loosening mechanism includes an anti-loosening nut 3, which is threaded onto the bolt 1 and located between the locking nut 2 and the nut 101 at one end of the bolt 1. The anti-loosening nut 3 has a plurality of protrusions 4 arranged in an array at one end of its contact surface with the mounting part. These protrusions 4 are evenly distributed along the circumference. The end of the anti-loosening nut 3 near the mounting part has a radially outwardly protruding flange 5, and the contact surface between the protrusions 4 and the mounting part is a plane.

[0027] The nut 101, anti-loosening nut 3, and lock nut 2 at one end of bolt 1 are all of the same specification.

[0028] The adjustment mechanism includes a sleeve 6, which is sleeved on the bolt 1 and has a ring structure.

[0029] When using the above-mentioned railway box screw structure, first, the sleeve 6 is put onto the bolt 1, and then the lock nut 3 is threaded onto the bolt 1. The lock nut 3 is then tightened onto the bolt 1 using a wrench or other tools. At this time, the two ends of the sleeve 6 are respectively abutted against the nut 101 at one end of the bolt 1 and the lock nut 3. Then, the threaded end 102 of the bolt 1 is passed through the through hole on the box body, and the protrusion 4 at one end of the flange 5 of the lock nut 3 contacts the bottom of the countersunk hole. Then, the locking nut 2 is tightened onto the bolt 1 to complete the installation. Finally, grease is applied to the countersunk hole to prevent the bolt 1 from rusting.

[0030] The above description, based on the preferred embodiments of this utility model, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A screw structure for a railway box, characterized by: The bolt (1) and the lock nut (2) are threadedly connected, the lock nut (2) and the bolt (1) are provided with a locking mechanism, the locking mechanism is used for increasing the friction between the bolt (1) and the mounting part, the bolt (1) is provided with an adjusting mechanism, the adjusting mechanism is located between the locking mechanism and the nut (101) at one end of the bolt (1), and the adjusting mechanism is used for adjusting the position of the nut (101) at one end of the bolt (1). The locking mechanism comprises a lock nut (3), the lock nut (3) is threadedly connected on the bolt (1) and located between the lock nut (2) and the nut (101) at one end of the bolt (1), and one end of the lock nut (3) in contact with the mounting part is provided with a plurality of protrusions (4).

2. The railway box screw structure according to claim 1, characterized in that: The lock nut (3) is provided with a flange (5) protruding outward in the radial direction at one end close to the mounting part.

3. The railway box screw structure according to claim 2, characterized in that: The contact surface of the protrusion (4) with the mounting part is a plane.

4. The railway box screw structure according to claim 3, characterized in that: The plurality of protrusions (4) are uniformly distributed along the circumference.

5. The railway box screw structure according to claim 1, characterized in that: The nut (101) at one end of the bolt (1), the lock nut (3) and the lock nut (2) are of the same specification.

6. The railway box screw structure according to claim 1, characterized by: The adjusting mechanism comprises a sleeve (6), and the sleeve (6) is sleeved on the bolt (1).

7. The railway box screw structure according to claim 6, characterized in that: The sleeve (6) has an annular structure.

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