A flame shield assembly for high temperature protection of a bolt

Abstract

This utility model relates to a flame-retardant cover assembly for high-temperature protection of bolts. Its features include a cylindrical flame-retardant cover and a cap-head flame-retardant cover. The cylindrical flame-retardant cover is fitted over the outside of the bolt threaded sleeve, with its inner diameter larger than the outer diameter of the bolt threaded sleeve. The cap-head flame-retardant cover is fitted over the outside of the bolt and nut rotating part, and the cap-head flame-retardant cover is connected to the bolt and nut rotating part via a fitting. The bolt and nut rotating part and the bolt threaded sleeve are integrally connected. The cylindrical flame-retardant cover is pressed and limited by the fit between the cap-head flame-retardant cover and the bolt and nut rotating part. This utility model has the advantages of simple structure, ease of manufacture, strong fire and high-temperature resistance, and easy assembly and disassembly.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature protection technology for bolts, specifically to a flame-retardant cover assembly for high-temperature protection of bolts. Background Technology

[0002] In special areas such as bridges, bolt assemblies are needed to secure ropes. However, to ensure safety, these bolts need to be inspected regularly. But with the increasing prevalence of electric vehicles, collisions and spontaneous combustion are becoming more common. Once these burning vehicles approach or directly impact the bolts, they inevitably deform. This not only affects the stability of the connection but also makes disassembly and inspection very difficult later. Therefore, designing a flame-retardant cover assembly for high-temperature protection of bolts is particularly important to solve the above problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention designs a flame-retardant cover assembly for high-temperature protection of bolts. The assembly consists of a cylindrical flame-retardant cover and a cap-head flame-retardant cover, which provides excellent protection for the bolts and prevents excessively high temperatures from adversely affecting their structure.

[0004] To solve the above-mentioned technical problems, this utility model provides a flame-retardant cover assembly for high-temperature protection of bolts, characterized in that: it includes a cylindrical flame-retardant cover and a cap-head flame-retardant cover. The cylindrical flame-retardant cover is sleeved on the outside of the bolt thread sleeve, and the inner diameter of the cylindrical flame-retardant cover is larger than the outer diameter of the bolt thread sleeve. The cap-head flame-retardant cover is sleeved on the outside of the bolt and nut rotating part. The cap-head flame-retardant cover and the bolt and nut rotating part are connected by a fitting. The bolt and nut rotating part and the bolt thread sleeve are connected as a whole. The cylindrical flame-retardant cover is pressed and limited by the cooperation between the cap-head flame-retardant cover and the bolt and nut rotating part.

[0005] Furthermore, the flame-retardant cap is composed of a spherical part, a cylindrical part, and a frustum-shaped protrusion, with both the inner and outer surfaces of the spherical part being spherical.

[0006] Furthermore, the upper end of the cylindrical flame-retardant cover is provided with a sealing slope, and the lower inner side of the frustum-shaped protrusion is provided with a connecting slope that matches the sealing slope.

[0007] Furthermore, the bolt and nut rotating part is configured as a hexagonal nut, and its top is also provided with a spherical protrusion that contacts the inner top wall of the spherical part.

[0008] With the above structure, this utility model provides a flame-retardant cover assembly consisting of a cylindrical flame-retardant cover and a cap flame-retardant cover on the outside of the bolt. This structure can provide good protection for the bolt and prevent excessively high temperatures from adversely affecting the bolt's structure. In addition, this design has the advantages of simple structure, easy manufacturing, strong fire and high temperature resistance, and easy disassembly and assembly. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0010] Figure 1 This is an assembly diagram for the use of this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of this utility model.

[0012] Figure 3 This is a cross-sectional view of a cylindrical flame-retardant cover.

[0013] Figure 4 This is a cross-sectional view of the flame-retardant cap at the top of the hat.

[0014] In the figure: 1 is a cylindrical flame-retardant cover, 2 is a cap head flame-retardant cover, 2-1 is a spherical part, 2-2 is a cylindrical part, 2-3 is a frustum-shaped protrusion, 3-1 is a bolt thread sleeve, and 3-2 is a bolt and nut rotating part. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] In the description of this utility model, it should be noted that certain terms indicating orientation or positional relationship 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.

[0017] In the description of this utility model, it should be noted that the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0018] The present invention will be further described in detail below through specific embodiments.

[0019] like Figure 1 and Figure 2 The illustrated flame-retardant cover assembly for high-temperature protection of bolts includes a cylindrical flame-retardant cover 1 and a cap-head flame-retardant cover 2. The cylindrical flame-retardant cover is fitted over the outside of the bolt thread sleeve 3-1, with the inner diameter of the cylindrical flame-retardant cover being larger than the outer diameter of the bolt thread sleeve. The cap-head flame-retardant cover is fitted over the outside of the bolt and nut rotating part 3-2, and the cap-head flame-retardant cover and the bolt and nut rotating part are connected by a fitting. The bolt and nut rotating part and the bolt thread sleeve are integrally connected vertically. The cylindrical flame-retardant cover is pressed and limited by the fit between the cap-head flame-retardant cover and the bolt and nut rotating part. In use, the cylindrical flame-retardant cover is first fitted over the outside of the bolt thread sleeve, and then the cap-head flame-retardant cover is fitted over the outside of the bolt and nut rotating part, pressing the cap-head flame-retardant cover tightly to its upper end. This invention protects bolts by using the cylindrical flame-retardant cover and the cap-head flame-retardant cover, preventing accidental combustion from damaging the bolts.

[0020] like Figure 4 The flame-retardant cap shown is composed of a spherical part 2-1, a cylindrical part 2-2, and a frustum-shaped protrusion 2-3 connected together, with both the inner and outer surfaces of the spherical part being spherical.

[0021] like Figure 3 and Figure 4 The upper end of the cylindrical flame-retardant cover shown is provided with a sealing slope, and the lower inner side of the frustum-shaped protrusion is provided with a connecting slope that matches the sealing slope.

[0022] like Figure 1 The bolt and nut rotating part shown is configured as a hexagonal nut, and its top is also provided with a spherical protrusion that contacts the inner top wall of the spherical part.

[0023] In summary, this utility model provides a flame-retardant cover assembly consisting of a cylindrical flame-retardant cover and a flame-retardant cap cover on the outside of the bolt. This structure can provide good protection for the bolt and prevent excessively high temperatures from adversely affecting the bolt's structure. Furthermore, this design has the advantages of simple structure, easy manufacturing, strong fire and high temperature resistance, and easy assembly and disassembly.

[0024] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A flame-retardant cover assembly for high-temperature protection of bolts, characterized in that: It includes a cylindrical flame-retardant cover (1) and a cap-head flame-retardant cover (2). The cylindrical flame-retardant cover is sleeved on the outside of the bolt thread sleeve (3-1). The inner diameter of the cylindrical flame-retardant cover is larger than the outer diameter of the bolt thread sleeve. The cap-head flame-retardant cover is sleeved on the outside of the bolt nut rotating part (3-2). The cap-head flame-retardant cover and the bolt nut rotating part are connected by a fitting. The bolt nut rotating part and the bolt thread sleeve are connected as one unit. The cylindrical flame-retardant cover is pressed and limited by the fitting between the cap-head flame-retardant cover and the bolt nut rotating part.

2. The flame-retardant cover assembly for high-temperature protection of bolts according to claim 1, characterized in that: The flame-retardant cap is composed of a spherical part (2-1), a cylindrical part (2-2), and a frustum-shaped protrusion (2-3) connected together, and the inner and outer surfaces of the spherical part are both spherical.

3. A flame-retardant cover assembly for high-temperature protection of bolts according to claim 2, characterized in that: The upper end of the cylindrical flame-retardant cover is provided with a sealing slope, and the lower inner side of the frustum-shaped protrusion is provided with a connecting slope that matches the sealing slope.

4. A flame-retardant cover assembly for high-temperature protection of bolts according to claim 2, characterized in that: The bolt and nut rotating part is configured as a hexagonal nut, and its top is also provided with a spherical protrusion that contacts the inner top wall of the spherical part.

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