Sand blasting protector for inner bore hole surface of composite pipe

Abstract

The utility model provides a composite pipe inner bore hole surface sand blasting protector which comprises a protector body arranged at at least one end of a pipe, the protector body is located in the pipe and matched with the inner wall of the pipe, and at least two locking mechanisms used for locking and fixing the protector body to the pipe are arranged at the upper end of the outer wall of the protector body. The protector is placed in the pipe end, needing to be protected, of the pipe, the protector is locked and fixed to the outer wall of the pipe through the locking mechanism arranged on the protector, sand is prevented from passing through the inner wall surface of the pipe end of the pipe through the protector, the inner wall surface of the pipe end of the pipe is protected, and the protector is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sand blasting protection tool technical field, concretely relates to a kind of composite pipe inner bore surface sand blasting protector. BACKGROUND

[0002] With the increasingly strict requirement of industry to pipe end bevel processing surface, the inner bore surface of composite pipe fitting (base layer is carbon steel, cladding is stainless steel) pipe end cannot be damaged by steel sand in sand blasting process, but the surface of pipe fitting not bored needs to be sand blasted and reach roughness requirement, to avoid steel sand damage bored processing surface when spraying non-processing surface, the inner wall surface of pipe end needs to be protected, to avoid steel sand fall into the range of bore.

[0003] Therefore, the utility model solves the technical problem of how to protect the inner wall surface of pipe when sand blasting the inner wall of pipe. UTILITY MODEL CONTENT

[0004] To solve the technical problem of how to protect the inner wall surface of pipe when sand blasting the inner wall of pipe, the utility model provides a kind of composite pipe inner bore surface sand blasting protector.

[0005] Specific scheme is as follows:

[0006] A kind of composite pipe inner bore surface sand blasting protector, including the protector body of being arranged in at least one end of pipe material, protector body is located in the inside of pipe material and cooperates with the inner wall of pipe material, at least two locking mechanisms for locking and fixing protector body on the outer wall upper end of protector body are provided.

[0007] The locking mechanism includes the connecting plate fixed on the outer wall upper end of protector body, the connecting plate includes horizontal plate, one end of the horizontal plate is fixed on the outer wall upper end of protector body, the other end of horizontal plate extends vertical plate towards the direction of lower end of protector body, horizontal plate and vertical plate form L-shaped connecting plate, nut is fixedly connected to the lower end of vertical plate, the hole in the center of nut is towards protector body, screw for locking protector body on pipe end is inserted in nut.

[0008] The protector body includes cylindrical structure at upper end and skirt structure extending outward at lower end, and the maximum gap is formed between the outer diameter of skirt structure and pipe material.

[0009] The inside of protector body is cavity.

[0010] The protector body is stainless steel material.

[0011] The utility model has the advantages of:

[0012] The utility model provides a kind of composite pipe inner boring surface sand blasting protector, the protector is placed in the pipe end inside that pipe material needs protection, and it is locked and fixed on the outer wall of pipe material using the locking mechanism set on the protector, prevent sand material from passing through the inner wall surface of the pipe end of pipe material using the protector, realize the protection to the inner wall surface of the pipe end of pipe material, and the protector is simple in structure, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the protector and pipe end cooperation schematic diagram of the utility model.

[0014] Among them, protector body 1, connecting plate 2, nut 3, screw 4, pipe material 5. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiment is only a part of the implementation of the utility model, not all the implementation, based on the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the protection of the utility model.

[0016] As Figure 1 Indicated, the utility model provides a kind of composite pipe inner boring surface sand blasting protector, including the protector body 1 of being set at least one end of pipe material 5, protector body 1 is located inside pipe material 5 and is cooperated with the inner wall of pipe material 5, at least two locking mechanisms for locking and fixing protector body 1 on the outer wall upper end of protector body 1 on pipe material 5 are provided.

[0017] The utility model provides a kind of composite pipe inner boring surface sand blasting protector, the protector is placed in the pipe end inside that pipe material needs protection, and it is locked and fixed on the outer wall of pipe material using the locking mechanism set on the protector, prevent sand material from passing through the inner wall surface of the pipe end of pipe material using the protector, realize the protection to the inner wall surface of the pipe end of pipe material, and the protector is simple in structure, convenient to use.

[0018] Protector body 1 cooperates with the inner wall of pipe material 5, it is that the outer wall of protector body 1 and the inner wall of pipe material 5 are contacted or have small gap.

[0019] As Figure 1 Indicated, the locking mechanism includes the connecting plate 2 of being fixed on the outer wall upper end of protector body 1, the connecting plate 2 includes horizontal plate, one end of the horizontal plate is fixed on the outer wall upper end of protector body 1, the other end of horizontal plate extends vertical plate towards the direction of the lower end of protector body 1, horizontal plate and vertical plate constitute L-shaped connecting plate 2, the lower end of vertical plate is fixedly connected with nut 3, the hole in the center of nut 3 is towards protector body 1, screw 4 for locking protector body 1 in the pipe end of pipe material 5 is inserted in nut 3.

[0020] At least two locking mechanisms are arranged on the outer wall of the protector body 1 to realize the fixation between the protector and the pipe end of the pipe material, the locking mechanisms can be symmetrically arranged two or uniformly spaced three; the lower end of the connecting plate 2 is fixedly connected with the nut 3, the screw 4 is inserted in the nut 3, by changing the rotating direction of the screw 4 relative to the nut 3, the direction of the end of the screw 4 extending out of the nut 3 can be controlled, that is, when the screw 4 is rotated clockwise or counterclockwise, the end of the screw 4 extends out of the nut 3 in the direction close to the outer wall of the pipe end of the pipe material, the distance between the two gradually decreases, until the end of the screw 4 abuts against the outer wall of the pipe end of the pipe material, so as to realize the locking of the protector body 1 on the outer wall of the pipe material; when the screw 4 is rotated counterclockwise or clockwise, that is, reversely, the end of the screw 4 extends out of the nut 3 in the direction away from the outer wall of the pipe end of the pipe material, the distance between the two gradually increases, when the distance increases to a suitable distance, the protector body 1 is removed, so as to realize the separation of the protector body 1 and the outer wall of the pipe material, the pipe end is locked and fixed by the screw 4, which is convenient for installation and removal, and can greatly improve the production efficiency.

[0021] The protector body 1 includes a cylindrical structure at the upper end and a skirt structure extending outward at the lower end, and the maximum outer diameter of the skirt structure forms a gap with the pipe material 5; in the embodiment, the upper end of the protector body 1 is a cylindrical structure, as shown in the part above the dashed line a in FIG. 1, the skirt structure is a variable cross-section structure, that is, in the direction from top to bottom, the diameter of the outer wall of the protector body 1 gradually increases, and the maximum outer diameter of the outer wall is at the lowermost end of the skirt structure, as shown in the area between the dashed line a and the dashed line b in FIG. 1, the outer diameter of the upper end of the protector body 1 is set to be smaller than the outer diameter of the lower end, and the outer wall of the protector body 1 is smoothly transitioned as a whole, which facilitates the insertion of the protector into the pipe material, and the protector is easy to put in and take out, and the maximum outer diameter of the skirt structure forms a gap with the pipe material 5, that is, the outer diameter of the lowermost end of the protector differs from the inner diameter of the pipe end by 1mm-3mm, that is, after the protector is put into the pipe end, there is a small gap between the two. Figure 1 Figure 1 In actual use, the maximum diameter of the lower end of the protector needs to be located at the boundary line of the region of the pipe end that needs to be protected, as shown by the dashed line b in FIG. 1, which is also the maximum diameter of the lower end of the protector, so as to effectively block the contact between the sand and the inner wall of the pipe end during sand blasting, avoid affecting the roughness of the surface of the inner wall of the pipe end, and realize the protection of the inner wall of the pipe end.

[0022] In actual use, the maximum diameter of the lower end of the protector needs to be located at the boundary line of the region of the pipe end that needs to be protected, as shown by the dashed line b in FIG. 1, which is also the maximum diameter of the lower end of the protector, so as to effectively block the contact between the sand and the inner wall of the pipe end during sand blasting, avoid affecting the roughness of the surface of the inner wall of the pipe end, and realize the protection of the inner wall of the pipe end. Figure 1

[0023] ​​The protector body 1 is hollow, so that the overall weight of the protector body 1 is light, and the protector body 1 can be provided with a bottom surface or not provided with a bottom surface; if the bottom surface is provided, the bottom surface can block the sand from passing through to protect the inner wall surface of the pipe end; if the bottom surface is not provided, the pipe wall of the protector can protect the inner wall surface of the pipe end.

[0024] The protector body 1 is made of waste stainless steel materials, so that the cost is low, the hard material can completely protect the boring surface, and the protector can be used for pipes with the same inner diameter and can be recycled.

[0025] According to the length of the inner wall surface of the pipe end to be protected, a protector with a matching length is arranged, so that the protector extending into the pipe end can cover the inner wall surface of the pipe end to be protected, so as to protect the inner wall surface of the pipe end.

[0026] The specific working process of the utility model is as follows:

[0027] In use, a protector with a proper specification is selected, so that the protector can completely cover the area of the pipe 5 end to be protected, the protector body 1 is inserted into the pipe end of the pipe, so that the lower end of the protector body 1 with the maximum diameter can extend to the boundary line of the area to be protected in the pipe end, that is, Figure 1 The dotted line b, the protector and the pipe end are fastened through the locking mechanism.

[0028] Specifically, the screw 4 is rotated clockwise or counterclockwise, so that the end of the screw 4 extends out of the nut 3 in a direction close to the outer wall of the pipe end of the pipe, and the distance between the screw 4 and the nut 3 gradually decreases, until the end of the screw 4 abuts against the outer wall of the pipe end of the pipe, so as to lock and fix the protector body 1 on the outer wall of the pipe; then the inner wall of the pipe is sandblasted, at this time, since the outer diameter of the lowermost end of the skirt structure of the protector body 1 matches the diameter of the inner wall of the pipe, the sandblasting material is prevented from contacting the inner wall surface of the pipe end, so as to protect the inner wall surface of the pipe end; after the sandblasting is completed, the screw 4 is rotated counterclockwise or clockwise, that is, the screw 4 is rotated in the opposite direction, so that the end of the screw 4 extends out of the nut 3 in a direction away from the outer wall of the pipe end of the pipe, and the distance between the screw 4 and the nut 3 gradually increases; when the distance is increased to a proper distance, the protector body 1 is removed, so as to separate the protector body 1 from the outer wall of the pipe.

[0029] The technical means disclosed in the utility model is not limited to the technical means disclosed in the above-mentioned embodiments, and also includes the technical solutions composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements are also considered to be within the protection scope of the utility model.

Claims

1. A composite pipe inside boring surface sand blasting protector, characterized in that: The protective body (1) is arranged at least one end of the pipe (5), and is located inside the pipe (5) and matched with the inner wall of the pipe (5). At least two locking mechanisms are arranged on the outer wall of the upper end of the protective body (1) to lock and fix the protective body (1) on the pipe (5).

2. The composite pipe bore honing surface sandblasting protector according to claim 1, characterized in that: The locking mechanism comprises a connecting plate (2) fixed on the outer wall of the upper end of the protective body (1). The connecting plate (2) comprises a horizontal plate fixed on the outer wall of the upper end of the protective body (1), and a vertical plate extending from the other end of the horizontal plate towards the lower end of the protective body (1). The horizontal plate and the vertical plate form an L-shaped connecting plate (2). A nut (3) is fixedly connected to the lower end of the vertical plate. The center hole of the nut (3) faces the protective body (1). The screw (4) is inserted into the nut (3) to lock and fix the protective body (1) on the pipe end of the pipe (5).

3. The composite tube inside bore sandblasting protector of claim 1, wherein: The protective body (1) comprises a cylindrical structure at the upper end and a skirt structure extending outward at the lower end. The maximum outer diameter of the skirt structure forms a gap with the pipe (5).

4. The composite pipe bore honing surface sandblasting protector according to claim 1, characterized in that: The protective body (1) is a hollow cavity.

5. The composite pipe bore honing surface sandblasting protector according to claim 1, characterized in that: The protective body (1) is made of stainless steel.

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