Sand dirt cleaning device for bolt hole

Abstract

The utility model discloses a bolt hole sand dirt cleaning device which comprises a stud matched with the inner wall of a bolt hole in shape, the stud is of a hollow shell structure, the side wall of the stud is provided with a first dirt discharging groove penetrating through the inside and the outside of the side wall of the stud, and the top of the stud is connected with a twisting head. The bolt is simple and convenient to operate, as the stud is of the hollow shell structure and the first dirt discharge groove penetrating through the inside and the outside of the side wall of the stud is formed in the side wall of the stud, sand dirt on the hole wall of the bolt hole can be collected into the stud from the first dirt discharge groove by rotating the screwing head manually or through a wrench, and the sand dirt in the bolt hole is convenient to clean; the problem of insufficient buckling pressure of the fastener caused by sand accumulation in the bolt hole is solved, the risk of rail breakage is greatly reduced, the time for cleaning the sand in the bolt hole is short, and the operation efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of track bed construction technology, and in particular relates to a device for cleaning sand and dirt from bolt holes. Background Technology

[0002] The track bed is a layer of crushed stone, gravel, or concrete laid on the substructure of a roadbed, bridge, or tunnel, below the rails, sleepers, or support blocks, serving as the foundation for the rails or track frame.

[0003] The track bed has pre-drilled bolt holes for connecting bolts to fix fasteners and rails. Due to years of dust, sand spillage from trains and locomotives, and oiling of bolts, sand and dirt accumulate in the bolt holes. When loosening or unloading bolts, dirt enters the bolt holes and adheres to or even hardens on the side walls and bottom of the bolt holes. As a result, after the operation, the bolts cannot be screwed down in the bolt holes, and the fastening pressure of the fasteners on the rails is seriously insufficient.

[0004] To clean bolt holes, the current common practice is to use a blower with a thin tube to blow the sand out of the bolt holes or to use a homemade "small spoon" to scoop out the sand and dirt bit by bit. This method cannot effectively clean the oil stains in the bolt holes, resulting in low quality and low work efficiency. Moreover, using a blower to blow the sand out will cause additional dust and pollution. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a bolt hole sand and dirt cleaning device.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A device for cleaning sand and dirt from bolt holes includes a stud whose shape is adapted to the inner wall of the bolt hole. The stud is a hollow shell structure. A first drainage groove is formed on the side wall of the stud, which runs through the inside and outside of the side wall. A rotating head is connected to the top of the stud.

[0008] Preferably, the bottom of the stud is a raised shape that matches the shape of the bottom of the bolt hole, and a second drain groove is provided at the bottom of the stud that extends through the bottom of the stud.

[0009] Preferably, the top of the screw head is provided with an opening that allows the interior of the stud to communicate with the outside.

[0010] Preferably, the screw head is an external hexagonal bolt head.

[0011] Preferably, an extension rod is provided between the stud and the screw head.

[0012] The beneficial effects of this utility model are:

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This invention is easy to operate. Because the stud has a hollow shell structure and a first drainage groove that runs through the inside and outside of the stud side wall, sand and dirt from the bolt hole wall can be collected from the first drainage groove into the stud by manually or by rotating the screw head with a wrench. This makes it easy to clean the sand and dirt in the bolt hole, solves the problem of insufficient fastening pressure caused by sand and dirt accumulation in the bolt hole, greatly reduces the risk of rail breakage, and the cleaning of sand and dirt in the bolt hole is quick and efficient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the present invention from another perspective. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-2 As shown, this utility model provides a technical solution: a bolt hole sand and dirt cleaning device, including a stud 1 whose shape is adapted to the inner wall of the bolt hole. The stud 1 is a hollow shell structure. A first drainage groove 2 that runs through the inside and outside of the side wall of the stud 1 is opened on the side wall of the stud 1. A screw head 3 is connected to the top of the stud 1.

[0019] In use, the stud 1 of this utility model is placed into the bolt hole, and the stud 1 is screwed into the bolt hole by rotating the screw head 3. Since the shape of the stud 1 is adapted to the shape of the inner wall of the bolt hole, the outer wall of the stud 1 is tightly attached to the inside of the bolt hole. The side wall of the first drainage groove 2 opened on the side wall of the stud 1 scrapes the sand and dirt attached to or hardened in the thread of the bolt hole into the inside of the stud 1 from the first drainage groove 2, thereby cleaning the inner wall of the bolt hole. Since the sand and dirt in the bolt hole is mostly a mixture of sand and oil, it is sticky and will adhere to the inside of the stud 1. At this time, the stud 1 is reversed to remove the sand and dirt from the bolt hole.

[0020] This utility model is easy to operate. Since the stud 1 has a hollow shell structure and a first drainage groove 2 that runs through the inside and outside of the side wall of the stud 1 is provided, the sand and dirt on the bolt hole wall can be collected from the first drainage groove 2 into the stud 1 by manually or by rotating the screw head 3 with a wrench. This makes it easy to clean the sand and dirt in the bolt hole, solves the problem of insufficient fastening pressure of the fastener caused by the accumulation of sand and dirt in the bolt hole, and greatly reduces the risk of rail breakage. Moreover, cleaning the sand and dirt in the bolt hole takes little time and has high work efficiency.

[0021] Furthermore, the bottom of the stud 1 is a protruding shape that matches the shape of the bottom of the bolt hole. A second drainage groove 4 is provided at the bottom of the stud 1, so that when the stud 1 is screwed into the bolt hole, the bottom of the stud 1 is in close contact with the bottom of the bolt hole. The sand and dirt attached or hardened at the bottom of the bolt hole are scraped into the stud 1 through the side wall of the second drainage groove 4, thereby cleaning the sand and dirt attached or hardened at the bottom of the bolt hole.

[0022] Furthermore, the top of the screw head 3 is provided with an opening 31 that connects the inside of the stud 1 to the outside, so that the sand and dirt inside the stud 1 can be poured out at the opening 31. Water can also be used to clean the sand and dirt inside the stud 1 from the opening 31, making it easy to clean the sand and dirt inside the stud 1. Thus, the cleaning device of this utility model can be reused.

[0023] Specifically, the screw head 3 is an external hexagonal bolt head, which makes it easy to use a wrench or electric wrench to rotate the screw head 3 to screw the stud 1 into the bolt hole; furthermore, the screw head 3 can also be a Torx handle, which makes it easy for the operator to rotate the screw head 3 directly by hand.

[0024] Furthermore, an extension rod 5 is provided between the stud 1 and the screw head 3 to lengthen the stud 1 and raise the position of the screw head 3, making it easier to rotate the screw head 3 with a wrench and preventing other parts at the bolt hole opening from obstructing the wrench operation.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for cleaning sand and dirt from bolt holes, characterized in that, The stud (1) is a hollow shell structure with a shape that matches the inner wall of the bolt hole. A first drain groove (2) is provided on the side wall of the stud (1) that runs through the inside and outside of the side wall of the stud (1). A screw head (3) is connected to the top of the stud (1). The bottom of the stud (1) is a raised shape that matches the bottom of the bolt hole. A second drain groove (4) is provided on the bottom of the stud (1) that runs through the bottom of the stud (1). An opening (31) is provided on the top of the screw head (3) that runs through the inside of the stud (1) to the outside. The screw head (3) is an external hexagonal bolt head.

2. The bolt hole sand and dirt cleaning device according to claim 1, characterized in that, An extension rod (5) is provided between the stud (1) and the screw head (3).

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