Elastic dustproof cap of bolt for engineering
By designing an elastic dust cap for the bolt and adopting specific materials and structures, the problem of bolt protection is solved, and the effects of preventing impurities from intruding, fixing the nut and preventing rust are achieved. It is suitable for a variety of environments.
Patent Information
- Application Number
- CN202420718365.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-04-09
AI Technical Summary
In existing engineering construction, bolts are easily invaded by impurities such as mud, rainwater, and dust, nuts are easy to fall off and threads are easy to be damaged, and bolts are easy to rust, and protection measures are insufficient.
An elastic dust cap for engineering bolts is designed. It is made of EPDM rubber or silicone rubber and includes a stepped air hole, a dust cap cover, a tensioning arc ring and other structures. It is produced by molding and is suitable for working conditions of -60℃ to +90℃. It prevents impurities from entering and protects nuts and threads.
It effectively prevents impurities from entering the bolt hole, prevents the nut from falling off and the thread from being damaged, and prevents the bolt from rusting. It has a wide range of applicable temperatures, is easy to install and has low cost, and is suitable for many industries.
Smart Images

Figure CN223387732U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an elastic dust cap for engineering bolts, belonging to the technical field of engineering construction and installation bolt protection. The elastic dust cap for engineering bolts primarily functions to: 1) prevent impurities such as mud, sand, rainwater, and dust from entering the bolt hole; 2) ensure the nut does not fall off and protect the threads from damage; and 3) prevent the bolt from rusting. Background Art
[0002] Engineering construction plays a significant role in the national economy and people's livelihoods, and bolts are essential components of any project. However, bolt protection techniques and measures are often overlooked. Bolts are often simply coated with a grease-like protective product or a simple dust cap, but these caps often fall off and fail. Utility Model Content
[0003] In light of this, the present invention proposes an elastic dust cap for engineering bolts that thoroughly resolves the aforementioned issues. It features a scientific design, a rational and simple structure, an aesthetically pleasing design, ease of installation and use, high real-time performance, reliability, and safety, a simple production process, low cost, and excellent protection. This new design solves the practical problem of effectively protecting engineering bolts and can also be widely used in other industries, such as automotive, machinery, and valves.
[0004] The purpose of this utility model is achieved through the following technical solutions:
[0005] The elastic dust cap for engineering bolts is composed of an elastic dust cap 1 and an exhaust hole plug 2; the elastic dust cap 1 includes a stepped air hole 11, a dust cap upper cover 12, an outer chamfer 13, a tightening arc ring 14, a slot 15, an inner chamfer 16, and a dust cap bottom edge 17; the exhaust hole plug 2 is provided with an anti-slip platform 21.
[0006] The elastic dust cap 1 for engineering bolts is made of EPDM rubber or silicone rubber elastic material and is suitable for working conditions of -60°C to +90°C.
[0007] The elastic dust cap 1 for engineering bolts is manufactured by molding.
[0008] The advantages and effects of the utility model are:
[0009] 1) The utility model discloses an elastic dust cap for an engineering bolt, which solves the following problems: 1) prevents impurities such as mud, sand, rainwater, dust, and oil from entering the bolt hole; 2) ensures that the nut will not fall off and protects the thread from being damaged; 3) prevents the bolt from rusting.
[0010] 2) The product of this utility model is suitable for working conditions of -60℃~+90℃.
[0011] 3) The utility model has a scientific design, a reasonable and simple structure, beautiful appearance, easy installation and use, high real-time performance, reliability and safety, simple product production process, low cost and good protection effect.
[0012] 4) The utility model can not only effectively protect engineering bolts, but can also be widely used in other industries such as automobiles, machinery, valves, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a top view of the elastic dust cap of the engineering bolt of the utility model.
[0014] Figure 2 This is a bottom view of the elastic dust cap of the engineering bolt of the utility model.
[0015] Figure 3 This is a schematic diagram of the assembly of the elastic dust cap of the engineering bolt of the utility model.
[0016] Figure numerals: 1-bolt elastic dust cap, 2-exhaust hole plugging, 11-step air hole, 12-dust cap upper cover, 13-external chamfer, 14-tensioning arc ring, 15-slot, 16-inner chamfer, 17-dust cap bottom edge, 21-anti-fall-off platform, 3-bolt hole, 4-bolt. DETAILED DESCRIPTION
[0017] The following is combined with Figures 1 to 3 The utility model is further described in detail with examples.
[0018] Obviously, the embodiments described are only representative embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] In the description of this utility model, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figures 1 to 3 The orientations or positional relationships shown are merely for the purpose of simplifying the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, all dimensions are measured from the centerline.
[0020] The engineering bolt elastic dust cap is composed of a bolt elastic dust cap 1 and an exhaust hole plug 2.
[0021] The bolt elastic dust cap 1 includes a stepped air hole 11 , a dust cap upper cover 12 , an outer chamfer 13 , a tensioning arc ring 14 , a slot 15 , an inner chamfer 16 , and a dust cap bottom edge 17 .
[0022] The exhaust hole blocker 2 is provided with an anti-fall-off platform 21 .
[0023] The elastic dust cap 1 for engineering bolts is made of EPDM rubber or silicone rubber elastic material and is suitable for working conditions of -60°C to +90°C.
[0024] The elastic dust cap 1 for engineering bolts is manufactured by a molding production method.
[0025] Example 1
[0026] In order to meet the needs of constructing water conservancy and hydropower water retaining facility air shield dam projects in hot and humid areas with high radiation, the protection technology and products of the elastic dust cap of the anchor bolt of the utility model are adopted.
[0027] Refer to the attached Figures 1 to 3 And specific implementation methods:
[0028] like Figure 1 ,and Figure 2 As shown, an elastic dust cap for an engineering bolt in this embodiment is composed of an elastic dust cap for a bolt 1 and a vent plug 2.
[0029] The bolt elastic dust cap 1 includes a stepped air hole 11 , a dust cap upper cover 12 , an outer chamfer 13 , a tensioning arc ring 14 , a slot 15 , an inner chamfer 16 , and a dust cap bottom edge 17 .
[0030] The exhaust hole blocker 2 is provided with an anti-fall-off platform 21 .
[0031] The air shield dam project is located in a hot and humid area with strong ultraviolet light, which places strict requirements on the weather resistance of the materials.
[0032] The elastic dust cap 1 for engineering bolts is made of EPDM elastic material and is suitable for working conditions of -60°C to +90°C.
[0033] The engineering bolt elastic dust cap 1 is manufactured by a molding production method, that is, firstly, two sets of molding molds are opened for the main anchor and the restraining band bolt elastic dust cap 1, and then the EPDM rubber mixture is filled into the mold, and the product is manufactured in a flat vulcanizer.
[0034] Figure 3 As shown, the bolt elastic dust cap 1 is tightly buckled on the anchor bolt rod head, and then the exhaust hole plug 2 is inserted into the step air hole 11 to complete the effective protection of the bolts of the air shield dam project.
[0035] Example 2
[0036] In order to meet the needs of construction projects in inner road areas, the protection technology and product of the elastic dust cap 1 of the anchor bolt of the utility model are adopted.
[0037] Refer to the attached Figures 1 to 3 And specific implementation methods:
[0038] The elastic dust cap 1 for engineering bolts is made of silicone rubber elastic material and is suitable for working conditions of -60°C to +90°C.
[0039] Other than this, it is the same as Example 1.
[0040] The utility model forms a new economic growth point, serves as a reference for the design and manufacturing of engineering bolts, the application of materials and the progress of installation, and has important social and economic benefits.
[0041] The above embodiments are representative implementations of the present invention, but the present invention is not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the essence and principles of the present invention are equivalent replacement schemes and should be included in the scope of protection of the present invention.
Claims
1. An elastic dust cap for a bolt used in an engineering project, wherein the elastic dust cap for a bolt used in an engineering project is characterized by: The invention is composed of a bolt elastic dust cap (1) and an exhaust hole plug (2). The bolt elastic dust cap (1) is tightly buckled on the anchor bolt rod head, and then the exhaust hole plug (2) is inserted into the step air hole (11); the bolt elastic dust cap (1) includes the step air hole (11), a dust cap upper cover (12), an outer chamfer (13), a tightening arc ring (14), a clamping groove (15), an inner chamfer (16), and a dust cap bottom edge (17); the exhaust hole plug (2) is provided with an anti-drop platform (21).
2. The elastic dust cap (1) for engineering bolts according to claim 1 is characterized in that project The bolt elastic dust cap is made of EPDM rubber or silicone rubber elastic material and is suitable for working conditions of -60℃ to +90℃.