Threaded fastener
By designing the screw and nut structure of threaded fasteners, the problem of tool mismatch in rail installation is solved, and the stable fixing screws are achieved without the need for additional tools, which improves installation efficiency.
Patent Information
- Application Number
- CN202421442843.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-06-24
AI Technical Summary
During the installation of the rail, the installer failed to carry the necessary tools with him or the tool size mismatched, resulting in frequent round trips to get the appropriate tools, which is very troublesome.
A threaded fastener is designed, including a shell and an auxiliary expansion assembly. The shell is equipped with a screw and a nut. The outer surface of the nut is fixed and installed with auxiliary nuts. The outer surface of the shell is equipped with groove printing and raised plates. The screw is The lower screw-connected cap body has a protrusion on the top, and there is a gasket between the nut and the shell. Users can fix the nut through wrench or visors, and use the notch to rotate the auxiliary nut to drive the nut to rotate and expand the shell groove to print it. Fixed to avoid the problem of tool mismatch.
It realizes stable fixing screws without requiring additional tools, avoids the trouble of round-trip access to tools caused by tool mismatch, and improves installation efficiency.
Smart Images
Figure CN222351112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of railroads, in particular to a threaded fastener. Background Art
[0002] my country's railway construction speed leads the world, with a total railway mileage of more than 100,000 kilometers. If a sleeper is laid every 0.5 meters and each sleeper has 4 rail fastening screws, there will be more than 800 million screws on the railway line. Screws, as a fastener, are used to fix two parts, usually with nuts or threaded holes. It is very common to use screws to fix the parts to be connected through threaded connections in actual production operations.
[0003] When performing installation tasks such as expansion screws, the installation master fails to carry necessary tools, such as wrenches, and the size of the tools he carries does not match the screws to be installed, resulting in the master having to go back and forth to get the appropriate tools, which is very troublesome.
[0004] Therefore, the utility model provides a threaded fastener to solve the above problems. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a threaded fastener to solve the above problems.
[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a threaded fastener, including a shell, an auxiliary expansion component is arranged inside the shell, the auxiliary expansion component includes a nut, a screw is rotatably connected inside the shell, the nut is screwed on the outer surface of the upper part of the screw, an auxiliary nut is fixedly installed on the outer surface of the nut, and a notch is opened on the outer surface of the auxiliary nut.
[0007] Furthermore, a raised plate is fixedly mounted on the outer surface of the shell, and a groove is provided between the raised plate and the shell.
[0008] By adopting the above technical solution, the provided groove can facilitate the user to use a wrench or a vise to fix and rotate the nut.
[0009] Furthermore, a cap body is screwed onto the outer surface of the lower portion of the screw rod, and a protrusion is fixedly mounted on the outer surface of the cap body.
[0010] By adopting the above technical solution, the provided protrusions can make it easier to abut against the shell when rising, so that the two sides of the shell can be expanded and fixed in a larger range.
[0011] Furthermore, a gasket is installed between the nut and the shell, and the top of the cap body is against the inner wall of the lower part of the shell.
[0012] By adopting the above technical solution, the provided gasket can effectively reduce the shaking of the nut body, thereby causing unstable fixing.
[0013] Beneficial Effects
[0014] The utility model provides a threaded fastener. Compared with the prior art, it has the following beneficial effects:
[0015] 1. This threaded fastener drives the screw to rotate by rotating the nut, and the screw rotates and rises, which drives the nut to move. The movement of the nut causes the corners of the groove at the lower part of the shell to expand, so that the device body can be stably fixed in the hole. When the user tightens the nut and the corners are damaged, and the user does not carry tools such as wrenches, a steel stick and an auxiliary tool are inserted into the slot and rotated to make the auxiliary nut rotate, thereby driving the nut to rotate. This avoids the problem that the installation master fails to carry necessary tools, such as wrenches, and the size of the tools carried does not match the screws to be installed, resulting in the master having to go back and forth to get the appropriate tools, which is very troublesome. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a side view structural schematic diagram of the utility model;
[0019] Figure 3 It is a schematic diagram of the top view structure of the utility model;
[0020] Figure 4 This utility model Figure 1 Enlarged view of point A in .
[0021] In the figure: 1, shell; 2, auxiliary expansion assembly; 21, screw; 22, auxiliary nut; 23, notch; 24, nut; 25, gasket; 26, cap body; 27, protrusion; 28, groove mark; 29, protrusion plate. DETAILED DESCRIPTION
[0022] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0023] The present application is further described in detail below through drawings and examples.
[0024] Reference Figures 1 to 4 An embodiment of the present application provides a threaded fastener, including a shell 1, an auxiliary expansion component 2 is arranged inside the shell 1, the auxiliary expansion component 2 includes a nut 24, a screw 21 is rotatably connected inside the shell 1, the nut 24 is screwed on the outer surface of the upper part of the screw 21, an auxiliary nut 22 is fixedly installed on the outer surface of the nut 24, and a notch 23 is opened on the outer surface of the auxiliary nut 22.
[0025] In this embodiment, a raised plate 29 is fixedly installed on the outer surface of the shell 1, a groove 28 is opened between the raised plate 29 and the shell 1, a cap body 26 is screwed on the outer surface of the lower part of the screw 21, a protrusion 27 is fixedly installed on the outer surface of the cap body 26, a gasket 25 is installed between the nut 24 and the shell 1, and the top of the cap body 26 is against the inner wall of the lower part of the shell 1. The user installs the device body into the pre-buried hole, and drives the screw 21 to rotate by rotating the nut 24. The screw 21 rotates and rises, and the screw 21 rotates and rises to drive the nut 24 to move, and the nut 24 moves This allows the corners of the groove 28 at the bottom of the shell 1 to expand, so that the device body can be stably fixed in the hole. When the user tightens the nut 24 and the corners are damaged, and the user does not carry tools such as a wrench, the user can use a steel stick and an auxiliary tool to insert the groove 23 and rotate it, so that the auxiliary nut 22 rotates, and then drives the nut 24 to rotate, avoiding the problem that the installation master fails to carry necessary tools such as a wrench, and the size of the tools carried does not match the screws to be installed, resulting in the master having to go back and forth to get the appropriate tools, which is very troublesome.
[0026] Working principle: the user installs the device body into the pre-buried hole, and drives the screw 21 to rotate by rotating the nut 24, and the screw 21 rotates and rises, and the rotation and rise of the screw 21 drives the nut 24 to move, and the movement of the nut 24 causes the corners at the groove 28 at the lower part of the shell 1 to expand, so that the device body can be stably fixed in the hole. When the user tightens the nut 24 and the corners are damaged, and the user does not carry tools such as wrenches, the user can use a steel stick and an auxiliary tool to insert the notch 23 and rotate it, so that the auxiliary nut 22 rotates, and then drives the nut 24 to rotate, avoiding the problem that the installation master fails to carry necessary tools such as wrenches, and the size of the tools carried does not match the screws to be installed, resulting in the master having to go back and forth to get the appropriate tools, which is very troublesome.
[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0028] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A threaded fastener, comprising a housing (1), characterized in that: An auxiliary expansion assembly (2) is arranged inside the shell (1), and the auxiliary expansion assembly (2) includes a nut (24). A screw rod (21) is rotatably connected inside the shell (1), and the nut (24) is screwed onto the outer surface of the upper part of the screw rod (21). An auxiliary nut (22) is fixedly mounted on the outer surface of the nut (24), and a notch (23) is provided on the outer surface of the auxiliary nut (22).
2. A threaded fastener according to claim 1, characterized in that: A raised plate (29) is fixedly mounted on the outer surface of the shell (1), and a groove (28) is provided between the raised plate (29) and the shell (1).
3. A threaded fastener according to claim 2, characterized in that: A cap body (26) is screwed onto the outer surface of the lower portion of the screw rod (21), and a protrusion (27) is fixedly mounted on the outer surface of the cap body (26).
4. A threaded fastener according to claim 3, characterized in that: A gasket (25) is installed between the nut (24) and the shell (1), and the top of the cap body (26) abuts against the inner wall of the lower part of the shell (1).