Step flange face bolt

Abstract

The utility model discloses a step flange face bolt and belongs to the technical field of bolts, the step flange face bolt comprises a bolt head, a flange plate and a bolt main body which are of an integrated structure, the bolt head is connected to one end face of the flange plate, the bolt main body is connected to the other end face of the flange plate, a first mounting and dismounting groove is formed in the bolt head, and a second mounting and dismounting groove is formed in the flange plate. And a second mounting and dismounting groove is formed in the bolt main body. According to the utility model, a plurality of mounting and dismounting parts are arranged and can be matched with a plurality of tools, namely a hexagonal head, a plum blossom groove and a straight slot, and can be matched with a hexagonal wrench, a plum blossom screwdriver and a straight screwdriver respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, and particularly relates to a stepped flange surface bolt. Background Art

[0002] Flange bolts are a common type of fastener, consisting of three parts: a hexagonal head, a flange plate, and a screw rod. Flange bolts are widely used in heavy machinery such as highway and railway bridges, industrial and civil buildings, cranes, and excavators.

[0003] Some bolts in the prior art are only adapted to one type of tool. For example, hexagonal bolts can only be installed or disassembled with a hexagonal wrench, and socket head cap screws can only be installed or disassembled with a socket screwdriver. Therefore, when the appropriate tool is lacking, the bolts cannot be used, which has certain limitations. Summary of the Utility Model

[0004] The utility model aims to solve some problems existing in the prior art. For this purpose, an object of the utility model is to provide a stepped flange surface bolt.

[0005] To achieve the above object, the utility model provides:

[0006] A stepped flange surface bolt, comprising a bolt head, a flange plate, and a bolt body of an integral structure. The bolt head is connected to one end face of the flange plate, and the bolt body is connected to the other end face of the flange plate. A first installation and disassembly groove is provided on the bolt head, and a second installation and disassembly groove is provided on the bolt body.

[0007] Preferably, the bolt body is composed of a stepped portion and a threaded portion of an integral structure. The stepped portion is connected to the flange plate, and the outer surface of the stepped portion is smooth. Threads are provided on the outer surface of the threaded portion.

[0008] Preferably, a plurality of equally spaced reinforcing rib plates are provided between the stepped portion and the flange plate. The reinforcing rib plates are of a triangular structure, and the two right-angled sides are respectively connected to the stepped portion and the flange plate.

[0009] Preferably, the bolt head is a hexagonal head, the first installation and disassembly groove is a socket groove, the second installation and disassembly groove is a flat groove, and the second installation and disassembly groove is provided at the end of the threaded portion.

[0010] Preferably, a positioning hole is provided at a position of the threaded portion close to the second installation and disassembly groove, and the positioning hole runs through the threaded portion.

[0011] Preferably, the diameter of the stepped portion is larger than that of the threaded portion.

[0012] Preferably, a chamfer is provided at the end of the threaded portion.

[0013] Advantages of the present utility model:

[0014] 1. The present utility model is provided with multiple installation and disassembly parts, which can be adapted to multiple tools, namely hexagonal head, plum blossom groove and flat groove, and can be respectively adapted to hexagonal wrenches, plum blossom screwdrivers and flat screwdrivers.

[0015] 2. The present utility model is provided with a reinforcing rib plate at the connection between the stepped part and the flange, which can strengthen the connection strength between the flange and the bolt body.

[0016] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Description of the Drawings

[0017] Figure 1 is a perspective view of the present utility model;

[0018] Figure 2 is a front view of the present utility model;

[0019] Figure 3 is a top view of the present utility model;

[0020] Figure 4 is a bottom view of the present utility model;

[0021] Figure 5 is a schematic diagram of the use of the second installation and disassembly groove of the present utility model.

[0022] In the figure: 1. Bolt head, 11. First installation and disassembly groove, 2. Flange, 3. Bolt body, 31. Stepped part, 32. Threaded part, 321. First installation and disassembly groove, 322. Positioning hole, 4. Reinforcing rib plate, 5. Tool. Detailed Embodiments

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0025] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the art to which this utility model belongs. The words "a" or "an" and the like used in the specification and claims of this application do not denote a limitation of quantity but rather denote the presence of at least one. "Plurality" includes two, which is equivalent to at least two. The words "comprising" or "including" and the like are intended to mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The words "connected" or "coupled" and the like are not limited to physical or mechanical connections and may include electrical connections, whether direct or indirect. The singular forms "a", "the" and "said" used in the specification and appended claims of this application are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] Please refer specifically to Figures 1-4 , a stepped flange face bolt, comprising a bolt head 1, a flange 2 and a bolt body 3 of an integral structure. The bolt head 1 is connected to one end face of the flange 2, and the bolt body 3 is connected to the other end face of the flange 2. A first installation and disassembly groove 11 is provided on the bolt head 1, and a second installation and disassembly groove 321 is provided on the bolt body 3. Specifically, the bolt head 1 is a hexagonal head, the first installation and disassembly groove 11 is a plum blossom groove, and the second installation and disassembly groove 321 is a slotted groove. When in use, a hexagonal wrench can be used to clamp the hexagonal head, or a plum blossom screwdriver and a slotted screwdriver can be inserted into the plum blossom groove and the slotted groove respectively to rotate the stepped flange face bolt, thereby realizing the installation or disassembly of the stepped flange face bolt. The stepped flange face bolt is provided with a plurality of installation and disassembly parts, which can be adapted to a plurality of tools 5, namely the hexagonal head, the plum blossom groove and the slotted groove, and can be respectively adapted to a hexagonal wrench, a plum blossom screwdriver and a slotted screwdriver.

[0027] It should be noted that: the second installation and disassembly groove 321 needs to be used in a through hole.

[0028] Furthermore, the bolt body 3 is composed of a stepped portion 31 and a threaded portion 32 of an integral structure. The diameter of the stepped portion 31 is larger than that of the threaded portion 32. The stepped portion 31 is connected to the flange 2, and the outer surface of the stepped portion 31 is smooth, and threads are provided on the outer surface of the threaded portion 32.

[0029] Further, six equally spaced reinforcing rib plates 4 are provided between the step portion 31 and the flange 2. The reinforcing rib plates 4 are of triangular structure, and the two right-angled sides are respectively connected to the step portion 31 and the flange 2. That is, the six reinforcing rib plates 4 are all fixed to the lower end of the flange 2, and the six reinforcing rib plates 4 are simultaneously fixed to the outer wall of the step portion 31. The reinforcing rib plates 4 can improve the anti-impact ability of the bolt body 3 when it is laterally impacted. Thus, when the side of the bolt body 3 is impacted, the bolt body 3 and the flange 2 are not easily broken and separated, and ultimately the practicability of the stepped flange surface bolt can be improved.

[0030] Further, the second installation and removal groove 321 is provided at the end of the threaded portion 32.

[0031] Further, a positioning hole 322 is provided at a position of the threaded portion 32 close to the second installation and removal groove 321. The positioning hole 322 runs through the threaded portion 32. A positioning pin can be inserted into the positioning hole 322. After the stepped flange surface bolt is locked, due to external factors such as vibration, the stepped flange surface bolt will become loose. A positioning pin can be inserted into the positioning hole 322 to position the bolt and prevent the bolt from loosening and affecting the fastening effect.

[0032] Further, a chamfer is provided at the end of the threaded portion 32. The design of the chamfer facilitates the insertion of the threaded portion 32 into a through hole or a threaded hole.

[0033] The present utility model is a stepped flange surface bolt, and its working principle is described in conjunction with the accompanying drawings:

[0034] When in use, due to the existence of the bolt head 1, the first installation and removal groove 11 and the second installation and removal groove 321, it can be used in cooperation with a variety of tools 5, such as a hexagon wrench, a Phillips screwdriver, and a flat screwdriver. It should be noted that the second installation and removal groove 321 needs to be in the Figure 5 state to be used, that is, the flat screwdriver needs to be placed into the connection hole and inserted into the second installation and removal groove 321, and the flat screwdriver is rotated to tighten through the stepped flange surface bolt. When in use, the existence of the reinforcing rib plates 4 can improve the connection strength between the bolt head 1 and the flange 2. When in use, a positioning pin can be inserted into the positioning hole 322 to position the bolt and prevent the bolt from loosening and affecting the fastening effect.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A stepped flange surface bolt, characterized in that, It includes a bolt head, a flange and a bolt body of an integral structure. The bolt head is connected to one end face of the flange, the bolt body is connected to the other end face of the flange, a first disassembly groove is provided on the bolt head, and a second disassembly groove is provided on the bolt body.

2. The stepped flange surface bolt according to claim 1, characterized in that, The bolt body is composed of a stepped portion and a threaded portion of an integral structure. The stepped portion is connected to the flange, and the outer surface of the stepped portion is smooth. Threads are provided on the outer surface of the threaded portion.

3. The stepped flange surface bolt according to claim 2, characterized in that, A number of equally spaced reinforcing rib plates are provided between the stepped portion and the flange. The reinforcing rib plates are of a triangular structure, and the two right-angled sides are respectively connected to the stepped portion and the flange.

4. The stepped flange surface bolt according to claim 2, characterized in that, The bolt head is a hexagonal head, the first disassembly groove is a plum blossom groove, the second disassembly groove is a slotted groove, and the second disassembly groove is provided at the end of the threaded portion.

5. The stepped flange surface bolt according to claim 2, characterized in that, A positioning hole is provided at a position of the threaded portion close to the second disassembly groove, and the positioning hole runs through the threaded portion.

6. The stepped flange surface bolt according to claim 2, wherein The diameter of the stepped portion is larger than that of the threaded portion.

7. The stepped flange surface bolt according to claim 2, wherein, A chamfer is provided at the end of the threaded portion.

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