A tubing joint coating masking tool

Abstract

The utility model discloses a kind of oil pipe joint coating masking tool, it is related to the technical field of part surface treatment, including two groups of parallelly arranged cross bars, two cross bars are connected by adjustable connecting rod, the end face of two cross bars is provided with multiple groups of corresponding bolt protection seat, protection hole is opened on the bolt protection seat. Through the setting of the utility model, the protection hole on the bolt protection seat can be accurately sleeved on the bolt, and the thread surface and the connecting end surface of the bolt can be masked in a targeted manner, preventing the coating from covering these critical parts during the coating process, ensuring the subsequent assembly accuracy and connection reliability. Compared with the traditional manual wrapping tape, setting rubber plug and other methods, this structure can significantly reduce the situation of overcoating or excessive masking, improve the consistency and stability of masking.

Description

Technical Field

[0001] This utility model relates to the field of surface treatment technology for parts, and in particular to a coating and masking tool for oil pipe joints. Background Technology

[0002] In the field of energy transportation such as oil and natural gas, pipelines serve as critical transport carriers, and the corrosion resistance of their joints directly affects the safety and service life of the entire transportation system. To improve the corrosion resistance of pipeline joints, the industry typically applies coating treatments, such as spraying anti-corrosion coatings or applying anti-rust paint.

[0003] However, the surface of tubing joints often has bolts used for connection. These bolts need to be masked during the coating process to prevent the coating from covering the threaded surfaces or connection ends of the bolts, otherwise it will affect the subsequent assembly accuracy and connection reliability. Currently, the masking of tubing joint bolts is mostly done manually by wrapping them with tape or using rubber plugs. These methods have obvious drawbacks: on the one hand, manual operation is inefficient, and it is difficult to ensure the consistency of masking, which can easily lead to missed areas or over-masking; on the other hand, it also increases operating costs and time costs.

[0004] Therefore, developing a coating and masking tool that can protect the threads of oil pipe joints, prevent coating from contaminating the threads, is easy to operate, and has a reliable masking effect has become the key to solving the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the defects existing in the prior art and to propose a coating and masking tool for oil pipe joints.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coating and masking fixture for an oil pipe joint is characterized by comprising two sets of parallel horizontal bars connected by an adjustable connecting rod, and multiple sets of corresponding bolt protection seats provided on the opposite end faces of the two horizontal bars, wherein the bolt protection seats are provided with protective holes.

[0008] Furthermore, the connecting rod is a fixed stud, and the crossbar has an opening that matches the fixed stud. The fixed stud is connected to the crossbar by a nut.

[0009] Furthermore, a buffer pad layer is provided on the bolt protection seat, and the buffer pad layer is made of silicone or rubber.

[0010] Furthermore, the protective hole is a smooth hole, and the diameter of the protective hole is larger than the diameter of the oil pipe joint.

[0011] Furthermore, the crossbar is made of high-strength alloy material, and its cross-section has a rectangular structure.

[0012] Furthermore, the crossbar is provided with hanging rods at both ends, the hanging rods are bent rods or curved rods, and the surface of the hanging rods is provided with anti-slip texture.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Because the two crossbars are connected by an adjustable connecting rod, the spacing between the two sets of crossbars can be flexibly adjusted according to the actual size of the oil pipe joint, thus adapting to joint structures of different widths or sizes. At the same time, multiple sets of corresponding bolt protection seats are set on the two crossbars. Combined with the design of the protection holes, it can accommodate bolts of different numbers, spacings and sizes, eliminating the need to frequently change the shielding tools for joints of different specifications, greatly reducing operating costs and time costs.

[0016] The protective holes on the bolt protector can be precisely fitted onto the bolt, selectively masking the bolt's threaded surface and connection end face. This prevents the coating from covering these critical areas during the coating process, ensuring subsequent assembly accuracy and connection reliability. Compared to traditional methods such as manually wrapping with tape or using rubber plugs, this structure significantly reduces missed coatings or over-masking, improving the consistency and stability of the masking. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 , 2 A schematic diagram of the overall structure of the coating and masking tool for the oil pipe joint.

[0019] Figure 3 This is a partially enlarged structural diagram of part A.

[0020] In the diagram: 1. Hanging rod; 2. Fixing stud; 3. Crossbar; 4. Bolt protection seat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] Reference Figures 1-3 A coating and masking fixture for an oil pipe joint includes two sets of parallel horizontal bars 3 connected by an adjustable connecting rod. The opposite end faces of the two horizontal bars 3 are provided with multiple sets of corresponding bolt protection seats 4, and the bolt protection seats 4 are provided with protective holes.

[0024] Since the two crossbars 3 are connected by an adjustable connecting rod, the spacing between the two sets of crossbars 3 can be flexibly adjusted according to the actual size of the oil pipe joint, thus adapting to joint structures of different widths or sizes. At the same time, multiple sets of corresponding bolt protection seats 4 are set on the two crossbars 3. Combined with the design of the protection holes, it can accommodate bolts of different numbers, spacings and sizes, eliminating the need to frequently change the shielding tools for joints of different specifications, greatly reducing operating costs and time costs.

[0025] The protective holes on the bolt protection seat 4 can be precisely fitted onto the bolt, specifically shielding the bolt's threaded surface and connection end face. This prevents the coating from covering these critical areas during the coating process, ensuring subsequent assembly accuracy and connection reliability. Compared to traditional methods such as manually wrapping with tape or using rubber plugs, this structure significantly reduces instances of missed coating or excessive shielding, improving the consistency and stability of the shielding.

[0026] In other preferred embodiments, the connecting rod is a fixing stud 2, and the crossbar 3 has an opening adapted to the fixing stud 2. The fixing stud 2 is connected to the crossbar 3 by a nut.

[0027] The threaded connection between the nut and the fixing stud 2 has reliable self-locking performance, which can firmly fix the crossbar 3 in the set position, preventing the crossbar 3 from shifting due to vibration, collision and other factors during the coating operation, and ensuring that the bolt protection seat 4 and the bolt always maintain precise correspondence, which not only ensures the masking effect, but also reduces the safety hazards caused by tooling loosening.

[0028] In other preferred embodiments, a buffer pad layer is provided on the bolt protection seat 4, and the buffer pad layer is made of silicone or rubber.

[0029] Silicone and rubber materials have good elasticity and softness. When the bolt is inserted into the protective hole and comes into contact with the buffer layer, it can form a flexible buffer, avoiding direct rigid collision or friction between the bolt and the metal protective seat. This prevents scratches, wear or deformation on the bolt surface. Especially for precision-machined threaded surfaces, it can significantly improve their integrity and service life.

[0030] In other preferred embodiments, the protective hole is a smooth hole. When the smooth inner wall of the smooth hole contacts the bolt, it can reduce the risk of scratches on the bolt surface caused by friction or jamming, prevent the threads of the part from seizing with the tooling threads after heating, and facilitate the disassembly of the part. Especially for precision-machined bolts, this structure can better cooperate with the buffer pad layer to further protect the integrity of the bolt and ensure that its performance is not affected.

[0031] In other preferred embodiments, the crossbar 3 is made of high-strength alloy material, and the crossbar 3 has a rectangular cross-section.

[0032] In other preferred embodiments, hanging rods 1 are provided at both ends of the crossbar 3. The hanging rods 1 are bent rods or curved rods, and the surface of the hanging rods 1 is provided with anti-slip texture. The hanging rods 1 provide convenient hanging points for the tooling, making it easy to hang the tooling for coating. Workers can hang the entire tooling on hooks, brackets, etc., to carry out coating operations.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coating and masking tool for an oil pipe joint, characterized in that, It includes two sets of parallel crossbars connected by an adjustable connecting rod. The opposite end faces of the two crossbars are provided with multiple sets of corresponding bolt protection seats, and the bolt protection seats are provided with protective holes.

2. The coating and masking fixture for an oil pipe joint according to claim 1, characterized in that, The connecting rod is a fixed stud, and the crossbar has an opening that matches the fixed stud. The fixed stud is connected to the crossbar by a nut.

3. The coating and masking fixture for an oil pipe joint according to claim 1, characterized in that, The bolt protection seat is provided with a buffer pad layer, which is made of silicone or rubber.

4. The coating and masking fixture for an oil pipe joint according to claim 1, characterized in that, The protective hole is a smooth hole, and its diameter is larger than that of the oil pipe joint.

5. The coating and masking fixture for an oil pipe joint according to claim 1, characterized in that, The crossbar is made of high-strength alloy and has a rectangular cross-section.

6. The coating and masking fixture for an oil pipe joint according to claim 1, characterized in that, The crossbar is provided with hanging rods at both ends. The hanging rods are bent rods or curved rods, and the surface of the hanging rods is provided with anti-slip texture.

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