Paint spraying protection device for paint spraying pipe

Abstract

The utility model provides a paint spraying protection device for a paint spraying pipe, which comprises a paint spraying chamber and a cross rod, the paint spraying pipe is hung on the cross rod through a pipe joint, the cross rod is respectively provided with a sealing sleeve on the left side and the right side of the pipe joint, an inner hole of the sealing sleeve is provided with a sealing groove, and the sealing groove is provided with a sealing ring. The first sealing paste is annular, is attached to the interface mounting surface and shields the interface mounting surface; second sealing pastes are respectively adhered to the interface mounting surfaces of the pipe joints at other positions of the paint spraying pipe, and the corresponding interface mounting surfaces are covered and shielded by the second sealing pastes. The device is convenient to operate, high in production efficiency and low in production cost.

Description

Technical Field

[0001] The utility model belongs to the field of external spraying of metal pipes, and particularly relates to a paint spraying protection device for a paint spraying pipe. Background Art

[0002] Multiple metal pipe fittings are used in the diesel engine structure, and multiple pipe joints are provided on the metal pipes. In order to enhance the protection of the surface of the pipe fittings, the outer surface of the pipe components needs to be baked with paint, that is, paint is sprayed on the surface of the metal pipes. However, for some metal pipes, it is not allowed that the interface mounting surface of the pipe joint is stained with paint. Therefore, the interface mounting surface needs to be shielded during the paint spraying operation. Currently, the following three shielding methods are usually adopted to shield the interface mounting surface:

[0003] 1. Through the traditional protection method, using bolts, nuts, washers, etc., a special protection tooling is designed for protection. Although this method can effectively shield the interface mounting surface of the pipe joint, the paint film on the bolts, nuts, and washers must be removed before reuse. This operation is very cumbersome, time-consuming and laborious, and the production efficiency is low.

[0004] 2. Through the chemical protection method, a certain dose of silicone oil is accurately applied to the parts of the pipe components that need to be protected first, and then the paint spraying and baking are carried out according to the normal paint spraying procedure. After completion, the surface paint film of the interface mounting surface of the pipe joint is removed by mechanical methods such as blade scraping. This method results in low production efficiency. At the same time, when applying silicone oil, the silicone oil is easily stained on other paint spraying positions of the pipe joint, resulting in the peeling off of the paint film and the uneven paint surface at this position, affecting the paint spraying quality.

[0005] 3. The magnet protection method is adopted, and the magnet block is attached to the interface mounting surface of the pipe joint by magnetic force for protection. This method has three disadvantages. First, it is the same as the disadvantage of the special protection tooling of bolts, nuts, and washers. The paint film on the magnet block must be removed before reuse, resulting in low production efficiency. Second, the magnetic attraction is very likely to magnetize the pipe fittings, having a series of unknown effects on the use of the pipe fittings. Third, some pipe component joints are made of aluminum bronze, brass, and stainless steel, resulting in inability to be directly used. Content of the Utility Model

[0006] In view of this, the utility model aims to provide a paint spraying protection device for a paint spraying pipe, which can effectively cover the interface mounting surface of the pipe joint on the paint spraying pipe, improve the paint spraying efficiency, and ensure the paint spraying quality.

[0007] To achieve the above object, the technical solution of the utility model is realized as follows:

[0008] A paint spraying protection device for a paint spraying pipe, comprising a paint spraying chamber, and a cross bar detachably installed in the paint spraying chamber for hoisting the paint spraying pipe. The cross bar is of a round bar structure. The paint spraying pipe is hoisted on the cross bar through a pipe joint at one end thereof. Sealing sleeves are respectively arranged on the left and right sides of the pipe joint on the cross bar. A sealing groove is formed in the inner hole of the sealing sleeve, and a sealing ring is arranged in the sealing groove. The sealing ring seals and connects the sealing sleeve and the cross bar. A first sealing sticker is arranged on the interface installation surface of the sealing sleeve corresponding to the pipe joint. The first sealing sticker is annular and fits with and covers the interface installation surface.

[0009] Second sealing stickers are respectively adhered to the interface installation surfaces of the pipe joints at other positions of the paint spraying pipe, and the corresponding interface installation surfaces are covered and blocked by the second sealing stickers.

[0010] Further, the sealing ring is an O-ring.

[0011] Further, the first sealing sticker is double-sidedly adhered to bond the sealing sleeve and the interface installation surface of the pipe joint.

[0012] The second sealing sticker is single-sidedly adhered, and the second sealing sticker is adhered to the interface installation surface of the corresponding pipe joint.

[0013] Further, the outer edges of the first sealing sticker and the second sealing sticker respectively protrude from the outer edges of the interface installation surfaces of the corresponding pipe joints.

[0014] Further, a cross beam is respectively arranged at the upper positions of the left and right side walls of the paint spraying chamber. The two cross beams face each other. Limit grooves corresponding to the cross bar are respectively formed on the top surfaces of the two cross beams. The cross bar straddles the two cross beams, and its ends are embedded in the limit grooves of the cross beams.

[0015] Compared with the prior art, the paint spraying protection device for a paint spraying pipe of the present utility model has the following advantages:

[0016] In the present utility model, the interface installation surface of the pipe joint hoisted on the cross bar is covered by the first sealing sticker to prevent it from adhering to paint. At the same time, the setting of the sealing ring prevents paint from entering the pipe joint during the spraying process and polluting its inner surface. The interface installation surfaces of the pipe joints at other positions of the paint spraying pipe are respectively covered by the second sealing stickers to prevent them from adhering to paint. After the paint spraying is completed, the first sealing sticker and the second sealing sticker can be torn off from the interface installation surfaces of the corresponding pipe joints. Therefore, the present utility model is convenient to operate, has high production efficiency and low production cost. Description of the Drawings

[0017] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 The front view of a paint spraying protection device for a paint spraying pipe according to an embodiment of the present utility model;

[0019] Figure 2 The top view of a paint spraying protection device for a paint spraying pipe according to an embodiment of the present utility model;

[0020] Figure 3 The schematic structural view of the cross beam in this embodiment.

[0021] Explanation of reference numerals:

[0022] 1 - Paint spraying chamber; 2 - Paint spraying pipe; 21 - Pipe joint; 3 - Cross beam; 31 - Limiting groove; 4 - Sealing ring; 5 - Sealing sleeve; 6 - First sealing sticker; 7 - Cross bar; 8 - Second sealing sticker. Specific implementation manner

[0023] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0024] As Figure 1 , Figure 2 shown, a paint spraying protection device for a paint spraying pipe includes a paint spraying chamber 1. A cross bar 7 is detachably arranged near the top inside the paint spraying chamber 1. The cross bar 7 is of a round bar structure, preferably a metal bar, and its diameter is larger than the inner diameter of the pipe joint 21 on the paint spraying pipe 2, ensuring that the pipe joint 21 can pass through the cross bar 7. The pipe joint 21 at one end (the top position after hoisting) of the paint spraying pipe 2 passes through the cross bar 7 horizontally. At this time, the paint spraying pipe 2 is hoisted on the cross bar 7 through the pipe joint 21. During operation, several paint spraying pipes 2 can be hoisted on the cross bar 7, and a distance is left between every two adjacent paint spraying pipes 2 to realize simultaneous paint spraying operation of several paint spraying pipes 2.

[0025] On the left and right sides of each pipe joint 21 at the top end, a sealing sleeve 5 is provided respectively. An annular sealing groove is formed on the inner hole surface of the sealing sleeve 5, and a sealing ring 4 is arranged in the sealing groove. The sealing ring 4 is preferably an O-shaped rubber ring. The sealing ring 4 seals and connects the sealing sleeve 5 and the cross bar 7. A first sealing sticker 6 is arranged on the interface installation surface of the corresponding pipe joint 21 of the sealing sleeve 5. The first sealing sticker 6 is preferably annular and double-sidedly adhered. One side of it is adhered to the sealing sleeve 5, and the other side is adhered to the interface installation surface of the corresponding pipe joint 21. At this time, the first sealing sticker 6 fits with the interface installation surface and covers the interface installation surface. As a preference, to improve the operation convenience, a plurality of first sealing stickers 6 can be sequentially arranged and adhered to each other. After spraying, only the outermost first sealing sticker 6 (adhered to the interface installation surface of the pipe joint) needs to be torn off, and then the next first sealing sticker 6 is used to adhere to and cover the interface installation surface of the pipe joint 21 of the next paint spraying pipe. In this structure, due to the damping effect of the relative movement between the sealing ring 4 and the cross bar 7, it can ensure that the first sealing sticker 6 is firmly adhered to the interface installation surface of the corresponding pipe joint 21.

[0026] The interface mounting surfaces of the pipe joints 21 at other positions of the paint spraying pipe 2 are respectively adhesively bonded with second sealing stickers 8. The second sealing stickers 8 are single-sided adhesives and are of an integral structure, that is, the second sealing stickers 8 cannot be provided with structures such as holes and openings, so as to ensure that the second sealing stickers 8 completely cover and block the interfaces of the corresponding pipe joints 21, prevent the paint from adhering to the interface mounting surfaces, and at the same time prevent the paint from entering the pipe joints 21.

[0027] In the present utility model, the outer edges of the first sealing sticker 6 and the second sealing sticker 8 respectively protrude from the outer edges of the interface mounting surfaces of the corresponding pipe joints 21. This structure facilitates grasping the first sealing sticker 6 and the second sealing sticker 8 so as to tear them off from the corresponding pipe joints 21 after the spraying is completed.

[0028] In the present utility model, the installation structure of the cross bar 7 in the paint spraying chamber 1 is as follows: a cross beam 3 is respectively provided at the upper positions of the left and right side walls of the paint spraying chamber 1, and the two cross beams 3 face each other. The structure of the cross beam 3 is as Figure 3 shown, and a limiting groove 31 corresponding to the cross bar 7 is opened on its top surface. After installation, the cross bar 7 straddles the two cross beams 3, and the two end portions of the cross bar 7 are embedded into the limiting grooves 31 of the two cross beams 3. This structure can fix the position of the cross bar 7 and is convenient for disassembling the cross bar 7, improving the hoisting convenience of the paint spraying pipe 2.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A paint spraying protection device for a paint spraying tube, characterized in that: The invention comprises a spray booth (1), and a cross bar (7) which is detachably mounted in the spray booth (1) and used for hanging a spray paint pipe (2), wherein the cross bar (7) is a round bar structure, and the spray paint pipe (2) is hung on the cross bar (7) through a pipe joint (21) at one end thereof, and the cross bar (7) is provided with sealing sleeves (5) on the left and right sides of the pipe joint (21), respectively, and a sealing groove is provided in the inner hole of the sealing sleeve, and a sealing ring (4) is provided in the sealing groove, and the sealing ring (4) seals and connects the sealing sleeve (5) and the cross bar (7), and a first sealing sticker (6) is provided on the interface mounting surface of the sealing sleeve (5) corresponding to the pipe joint (21), and the first sealing sticker (6) is annular and fits with the interface mounting surface and shields the interface mounting surface; The interface installation surfaces of the pipe joints (21) at other positions of the paint spray pipe (2) are respectively bonded with second sealing stickers (8), and the corresponding interface installation surfaces are covered and shielded by the second sealing stickers (8).

2. A paint spraying protection device for a paint spraying tube according to claim 1, characterized in that: The sealing ring (4) is an O-ring.

3. A paint spraying protection device for a paint spraying tube according to claim 1, characterized in that: The first sealing sticker (6) is double-sidedly pasted to bond the sealing sleeve (5) and the interface mounting surface of the pipe joint (21); The second sealing sticker (8) is single-sidedly pasted, and the second sealing sticker (8) is bonded to the interface installation surface of the corresponding pipe joint (21).

4. A paint spraying protection device for a paint spraying tube according to claim 1, characterized in that: The outer edges of the first sealing sticker (6) and the second sealing sticker (8) respectively protrude from the outer edges of the interface installation surfaces of the corresponding pipe joints (21).

5. A paint spraying protection device for a paint spraying tube according to claim 1, characterized in that: A crossbeam (3) is respectively arranged at the upper part of the left and right side walls of the spray booth (1), the two crossbeams (3) are opposite to each other, and the top surfaces of the two crossbeams (3) are respectively provided with limiting grooves (31) corresponding to the crossbar (7), and the crossbar (7) spans the two crossbeams (3), and the end of the crossbar (7) is embedded in the limiting groove (31) of the crossbar (3).

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