CN217177094U - High-strength transportation bolt - Google Patents

Abstract

The present application discloses a high-strength transport bolt, comprising a cylindrical bolt head, a bolt backing plate and a bolt body with external threads on the surface. A through groove is formed on the upper surface of the bolt head, and the bottom of the through groove is the upper surface of the bolt backing plate. The through groove is provided with an inner fixing head for inserting and urging the bolt body to follow the rotation to fasten or disassemble. The inner fixing head is fixed on the upper surface of the bolt backing plate, and the top of the bolt head is provided with an opening and closing device for opening and closing the through slot. For the control assembly, the lower surface of the bolt pad is provided with a guide gasket pressing assembly. After completing the tightening function, the opening and closing control components are used to control the closing of the slot, so as to protect the inner fixing head, avoid the inner fixing head being directly exposed to the outside air, reduce the erosion of water vapor, and improve the use. Therefore, during disassembly and installation, the phenomenon of slippage is avoided. A guide gasket pressing component is arranged on the lower surface of the bolt pad, which can make the tightening tighter and the whole more stable.

Description

A high-strength transport bolt

technical field

The utility model relates to the technical field of bolts, in particular to a high-strength transport bolt.

Background technique

Bolts: bolts, mechanical parts, cylindrical threaded fasteners with nuts, a type of fasteners consisting of a head and a screw (a cylinder with external threads), which need to be matched with nuts, with It is used to fasten and connect two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, the bolt connection is a detachable connection. Bolts made of high-strength steel, or bolts that require a large pre-tightening force, can be called high-strength bolts. High-strength bolts are mostly used for the connection of bridges, rails, high pressure and ultra-high pressure equipment. At present, many objects are connected The most used bolts are bolts. Whether it is actually building a house or building a shed, a lot of bolts are needed, and bolts bring great convenience to our lives.

The existing high-strength transport bolt structure usually includes a bolt head, a bolt backing plate and a bolt body with threads on the surface. When in use, the bolt head is rotated by clamping and rotating or inserting and rotating, so as to drive the bolt body to be fastened to the bolt body. However, there are several problems in the existing structure. First, the bolt head is directly exposed to the outside air, and the corrosion of rain or water vapor will cause the slot or hole on the bolt head for insertion to be corroded, resulting in subsequent disassembly. The phenomenon of sliding wire is easy to occur when the bolt is not removed, and it is extremely inconvenient to use; 2. Flat washers are usually placed at the connection between the bolt backing plate and the main body of the bolt, but the flat washer is prone to displacement, and the entire high-strength transport bolt is fixed. The strength is of little help and thus needs to be improved.

SUMMARY OF THE INVENTION

The utility model aims to solve one of the technical problems existing in the prior art.

The present application provides a high-strength transport bolt, comprising a cylindrical bolt head, a bolt backing plate and a bolt body with an external thread on the surface, characterized in that a through groove is formed on the upper surface of the bolt head, and the through groove is The bottom is the upper surface of the bolt pad, the through groove is provided with an inner fixing head for inserting and urging the bolt body to follow the rotation to fasten or disassemble, the inner fixing head is fixed on the upper surface of the bolt pad, the bolt The top of the head is provided with an opening and closing control assembly for opening and closing the slot, and a guide gasket pressing assembly is disposed on the lower surface of the bolt backing plate.

Using the above-mentioned high-strength transport bolt, a through groove is opened on the upper surface of the bolt head, the inner fixing head connected to the upper surface of the bolt backing plate is arranged in the through groove, and the top of the bolt head is provided with a hole for opening and closing The opening and closing control component of the slot slot, when in use, rotates the inner fixed head by inserting a tool, thereby driving the bolt body to follow the rotation and tightening the fixed body. Control the closing of the slot of the channel to protect the inner fixed head, prevent the inner fixed head from being directly exposed to the outside air, reduce the erosion of water vapor, improve the service life, and avoid slippage during disassembly and installation. To avoid the thread phenomenon, a guide gasket pressing component is arranged on the lower surface of the bolt backing plate, which can make the tightening tighter and the whole more stable.

Preferably, the opening and closing control assembly comprises a hemispherical casing, an outer connecting cylinder connected at the edge of the casing, an inner thread arranged on the inner wall of the outer connecting cylinder, an annular connecting plate connected at the slot of the through groove, The outer thread on the outer wall of the annular connecting plate is arranged at the slot of the through-slot through the inner thread of the outer connecting cylinder and the outer thread of the annular connecting plate.

Preferably, the thickness of the outer connecting cylinder plus the thickness of the annular connecting plate is equal to the thickness between the groove wall of the through groove and the outer side wall of the bolt head.

Preferably, the upper surface of the inner fixing head is provided with an inner hexagonal groove, and the bottom of the inner hexagonal groove is provided with a cross groove.

Preferably, the guide gasket pressing assembly includes a circular flat backing plate, at least two lower rods connected to the side wall of the flat washer plate facing the bolt head, connected to the end of the lower rods and having a diameter smaller than that of the lower rods. The upper rod of the rod, the spring surrounding the upper rod, and the guide hole opened on the side wall of the bolt pad facing the flat pad, at least two upper rods are respectively slidably inserted into the guide holes.

Preferably, at least two protrusions are arranged on the outer side wall of the casing along the circumferential direction, and the protrusions are in the shape of a rectangular parallelepiped.

The beneficial effects of the present invention will be described in detail in the embodiments, so that the beneficial effects are more obvious.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between "first", "second", etc. The objects are usually of one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

The embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Example 1:

As shown in Figure 1, a high-strength transport bolt includes a cylindrical bolt head 1, a bolt backing plate 2 and a bolt body 3 with an external thread on the surface. The surface is provided with a through slot 4, the bottom of the through slot 4 is the upper surface of the bolt backing plate 2, and the through slot 4 slot is provided with an inner fixed head 5 for inserting and urging the bolt body 3 to follow the rotation to fasten or disassemble , the inner fixing head 5 is fixed on the upper surface of the bolt pad 2, the top of the bolt head 1 is provided with an opening and closing control assembly for opening and closing the slot of the through groove 4, and the lower surface of the bolt pad 2 is provided with a guide pad Sheet compression assembly.

Using the above-mentioned high-strength transport bolt, a through groove 4 is opened on the upper surface of the bolt head 1, and the inner fixing head 5 connected with the upper surface of the bolt backing plate 2 is arranged in the through groove 4, and on the top of the bolt head 1. There is an opening and closing control assembly for opening and closing the slot of the through groove 4. When in use, the inner fixing head 5 is rotated by inserting a tool, so as to drive the bolt body 3 to follow the rotation and tighten the fixed body to complete the tightening. After the action, the opening and closing control assembly is used to control the closing of the slot of the through groove 4, so as to protect the inner fixing head 5, avoid the inner fixing head 5 being directly exposed to the outside air, reduce the erosion of water vapor, and improve the use. Therefore, during disassembly and installation, the phenomenon of slippage is avoided. A guide gasket pressing component is arranged on the lower surface of the bolt pad 2, which can make the tightening tighter and the whole more stable.

In a specific embodiment of the present invention, the opening and closing control assembly includes a hemispherical casing 11, an outer connecting cylinder 12 connected to the edge of the casing 11, an inner thread provided on the inner wall of the outer connecting cylinder 12, and a through groove connected to the outer casing 11. 4. The annular connecting plate 13 at the notch, the external thread provided on the outer wall of the annular connecting plate 13, the casing 11 is rotated and arranged in the through groove 4 through the internal thread of the external connecting cylinder 12 and the external thread of the annular connecting plate 13. at the notch.

When in use, the inner fixing head 5 is rotated by inserting a tool, thereby driving the bolt body 3 to follow the rotation and then tightening the fixed body. The connecting plate 13 and the outer casing 11 are rotated and arranged at the slot of the through-slot 4 through the inner thread of the outer connecting cylinder 12 and the outer thread of the annular connecting plate 13 to control the closing of the slot of the through-slot 4 to protect the inner fixed head The function of 5 prevents the inner fixed head 5 from being directly exposed to the outside air, reduces the erosion of water vapor, improves the service life, and then avoids the phenomenon of slippage during disassembly and installation. The hemispherical shell 11 is convenient for water droplets to follow the slope. Sliding, reducing erosion.

In a specific embodiment of the present invention, the thickness of the outer connecting cylinder 12 plus the thickness of the annular connecting plate 13 is equal to the thickness between the groove wall of the through groove 4 and the outer side wall of the bolt head 1 .

This structure is used to make the outer wall of the outer connecting cylinder 12 and the outer side wall of the bolt head 1 on the same plane, that is, the cross section of the outer connecting cylinder 12 and the annular connecting plate 13 is coincident with the cross section of the bolt head 1, which further facilitates The sliding of water droplets when it rains reduces the erosion of water vapor.

Example 2:

As shown in FIG. 1 , in addition to including the structural features of the foregoing embodiments, in the specific embodiment of the present invention, the inner hexagonal groove 6 is provided on the upper surface of the inner fixed head 5 , and the bottom of the inner hexagonal groove 6 is provided with a cross. slot 7.

In order to further facilitate the insertion of the tool to rotate the inner fixed head 5, the inner hexagonal groove 6 is provided on the upper surface of the inner fixed head 5, and the inner hexagonal wrench can be used to rotate the inner fixed head 5, and the bottom of the inner hexagonal groove 6 is provided with a cross groove 7. You can also use a Phillips screwdriver or a flat-blade screwdriver to rotate the inner fixing head 5 to further reduce the influence of the sliding wire phenomenon on the disassembly and installation.

Example 3:

As shown in FIG. 1 , in addition to the structural features of the foregoing embodiments, in a specific embodiment of the present invention, the guide pad pressing assembly includes a circular flat backing plate 16 , which is connected to the flat backing plate 16 toward the At least two lower rods 17 on one side wall of the bolt head 1, an upper rod 18 connected to the end of the lower rod 17 and having a diameter smaller than the lower rod 17, a spring 19 surrounding the upper rod 18, and opening on the bolt backing plate 2 toward In the guide holes 20 on one side wall of the flat plate 16 , at least two upper rods 18 are respectively slidably inserted into the guide holes 20 .

When in use, the inner fixing head 5 is rotated by inserting a tool, thereby driving the bolt body 3 to follow the rotation and then tightening the fixed body. During the process, the flat backing plate 16 approaches the bolt head 1, and the upper rod 18 follows the The guide hole 20 slides, the upper end of the lower rod 18 cooperates with the bolt pad 2 to compress the spring 19, the spring 19 forms a rebound force, and acts on the flat pad 16, so that the flat pad 16 and the fixed body are connected at the connection point. It is more compact, and at the same time, it is not easy to be displaced by external force. After completing the tightening action, by aligning the outer connecting cylinder 12 on the outer casing 11 with the annular connecting plate 13, the outer casing 11 is connected to the annular connection through the inner thread of the outer connecting cylinder 12. The external thread of the plate 13 is arranged at the slot of the through slot 4 to control the closing of the slot of the through slot 4 so as to protect the inner fixed head 5 .

In the specific embodiment of the present invention, at least two protrusions 15 are disposed on the outer side wall of the casing 11 along the circumferential direction, and the protrusions 15 are in the shape of a rectangular parallelepiped.

In order to facilitate the installation and disassembly of the casing 11, at least two protrusions 15 are arranged on the outer side wall of the casing 11 in the circumferential direction.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (6)

1. A high-strength transport bolt, comprising a cylindrical bolt head (1), a bolt backing plate (2) and a bolt body (3) with an external thread on the surface, characterized in that the upper surface of the bolt head (1) A through slot (4) is provided, the bottom of the through slot (4) is the upper surface of the bolt backing plate (2), and the slot of the through slot (4) is provided with a slot for inserting and urging the bolt body (3) to follow the rotation A fastened or disassembled inner fixing head (5), the inner fixing head (5) is fixed on the upper surface of the bolt backing plate (2), and the top of the bolt head (1) is provided with a groove for opening and closing the through groove (4) The opening and closing control assembly of the port is provided, and the lower surface of the bolt pad (2) is provided with a guide gasket pressing assembly. 2. The high-strength transport bolt according to claim 1, wherein the opening and closing control assembly comprises a hemispherical casing (11), an outer connecting cylinder (12) connected to the edge of the casing (11) ), the inner thread arranged on the inner wall of the outer connecting cylinder (12), the annular connecting plate (13) connected to the slot of the through groove (4), the outer thread arranged on the outer wall of the annular connecting plate (13), the outer (11) The inner thread of the outer connecting cylinder (12) and the outer thread of the annular connecting plate (13) are rotated and arranged at the notch of the through groove (4). 3. A high-strength transport bolt according to claim 2, characterized in that the thickness of the outer connecting cylinder (12) plus the thickness of the annular connecting plate (13) is equal to the thickness of the through groove (4) groove wall to the bolt head (1) Thickness between outer side walls. 4. A high-strength transport bolt according to claim 2, characterized in that, an inner hexagonal groove (6) is provided on the upper surface of the inner fixing head (5), and a groove bottom of the inner hexagonal groove (6) is provided There is a cross groove (7). 5. A high-strength transport bolt according to claim 2, 3 or 4, characterized in that the guide pad pressing assembly comprises a circular flat backing plate (16), which is connected to the flat backing plate (16) At least two lower rods (17) on the side wall facing the bolt head (1), an upper rod (18) connected to the end of the lower rod (17) and having a diameter smaller than the lower rod (17), surrounding the upper rod (18) The spring (19) on the rod (18), the guide hole (20) provided on the side wall of the bolt pad (2) facing the flat pad (16), at least two upper rods (18) are respectively slidably inserted into the bolt pad (2). into the guide hole (20). 6 . The high-strength transport bolt according to claim 5 , wherein at least two protrusions ( 15 ) are provided on the outer side wall of the casing ( 11 ) along the circumferential direction, and the protrusions ( 15 ) Rectangular shape.

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