Coating spray head for rust-proof treatment of pipe fittings

Abstract

The utility model discloses a coating nozzle for rust-proof treatment of pipe fittings, which relates to the technical field of pipe fitting processing and comprises a mounting seat, a nozzle fixed in the middle of the mounting seat, a conveying pipe fixed at the tail end of the nozzle and used for conveying rust-proof media, and a plurality of traveling wheel carrier groups mounted on the peripheral side of the mounting seat in an annular array manner and used for driving the mounting seat to move. According to the anti-rust medium spraying device, due to the arrangement of the shielding ring, the push-pull piece and the electric push rod, uneven anti-rust media can be prevented from being sprayed on the inner wall of a pipe fitting when spraying is started and finished, and the anti-rust medium can be prevented from being sprayed on the inner wall of the pipe fitting when spraying is finished. Therefore, the quality of the pipe fitting subjected to rust-proof treatment is improved; besides, when the integrated coating nozzle is used for achieving the effects, the sliding sleeve does not need to be repeatedly mounted and dismounted during spraying treatment, so that the treatment operation is simplified while the good rust-proof treatment effect is achieved, and the efficiency of rust-proof treatment on the pipe fitting is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting processing technology, and in particular to a coating nozzle for rust prevention treatment of pipe fittings. Background Technology

[0002] After metal pipe fittings are processed, they generally need to be sprayed with anti-rust medium on the inner wall of the pipe fittings to prevent rust inside the pipe fittings. When spraying, a coating nozzle suitable for pipe interior operation is often used.

[0003] A search revealed a pipe coating device disclosed in patent document CN218637718U, comprising a coating assembly and a fixing assembly. The fixing assembly includes two sleeves arranged opposite each other, with a slot at one end of each sleeve near the pipe fitting that mates with the end of the pipe fitting. The inner diameter of the sleeve is not less than the inner diameter of the pipe fitting. The coating assembly includes a spray pipe and a nozzle, with the nozzle located at the end of the spray pipe. The nozzle has multiple spray holes evenly distributed on it, communicating with the spray pipe. The spray pipe passes through the sleeve and is coaxially arranged with it. The spray pipe is equipped with a moving assembly for driving the spray pipe to move axially along the pipe fitting. By using sleeves at both ends of the pipe fitting, the device intercepts the uneven rust-preventive medium sprayed at the beginning and end of the spraying process, ensuring uniform coating within the pipe fitting and preventing rust-preventive rings from being sprayed into the external environment and causing environmental pollution.

[0004] Based on the above search and combined with existing technology, it was found that when using existing equipment, it is necessary to install and disassemble the sleeves at both ends of each pipe to be coated, which is cumbersome and reduces the overall processing efficiency. Therefore, a coating nozzle for rust prevention treatment of pipe fittings is needed. Utility Model Content

[0005] The purpose of this application is to provide a coating nozzle for rust prevention treatment of pipe fittings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a coating nozzle for rust prevention treatment of pipe fittings, including a mounting base, a nozzle fixed in the middle of the mounting base, a conveying pipe for conveying rust prevention medium fixed at the tail end of the nozzle, and multiple sets of walking wheel frames for driving the mounting base to move are installed in a ring array around the mounting base.

[0007] The nozzle head is equipped with a shielding ring, and a push-pull component is fixedly connected to one side of the shielding ring to drive the shielding ring to move along the nozzle axis. The push-pull component is slidably mounted on the mounting base, and an electric push rod that drives the push-pull component to move is also installed on the side of the mounting base away from the nozzle orifice on the nozzle head.

[0008] Preferably, the shielding ring is an annular cover with an internal receiving groove. When the shielding ring is placed on the nozzle, the receiving groove corresponds to the position of the nozzle. After the shielding ring moves to the side of the delivery pipe, the nozzle is exposed.

[0009] Preferably, the front end of the mounting base is also fixed with a dirt-proof ring, the front end of the dirt-proof ring is rotatably fitted with the back side of the nozzle, and the outer diameter of the dirt-proof ring is the same as the diameter of the nozzle.

[0010] After the shielding ring moves backward, it covers the outside of the anti-fouling ring and forms a closed ring with the anti-fouling ring.

[0011] Preferably, a sealing ring is fixedly embedded in the inner wall of the shielding ring. When the shielding ring is installed on the nozzle, the sealing ring is interference-fitted with the peripheral wall of the nozzle. When the shielding ring is installed on the anti-fouling ring, the sealing ring is interference-fitted with the outer wall of the anti-fouling ring.

[0012] Preferably, the lower end of the shielding ring is also fixed and connected to a recovery pipe, the end of the recovery pipe away from the shielding ring passes through the mounting base and is connected to an external suction pump, and the middle part of the recovery pipe is tied to the delivery pipe with a cable tie.

[0013] Preferably, the push-pull component includes a connecting ring and a connecting rod, wherein the connecting ring is movably sleeved on the conveying pipe and there is a gap between the inner wall of the connecting ring and the conveying pipe;

[0014] One end of the connecting rod is fixed to one side of the connecting ring, and the other end of the connecting rod slides through the sliding hole on the mounting base and is fixed to the side of the shielding ring near the conveying pipe;

[0015] One end of the electric push rod is fixed to the side of the mounting base away from the cover ring, and the piston rod end of the electric push rod is fixed to the side wall of the connecting ring near the mounting base.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] 1. In this utility model, by setting up a shielding ring, a push-pull component, and an electric push rod, it is possible to avoid uneven application of the anti-rust medium to the inner wall of the pipe fitting at the beginning and end of spraying, thereby improving the quality of the pipe fitting after anti-rust treatment. In addition, when using an integrated coating nozzle to achieve the above effects, there is no need to repeatedly install and disassemble the sliding sleeve during the spraying process, thereby simplifying the processing operation and improving the efficiency of anti-rust treatment of pipe fittings while achieving a good anti-rust treatment effect.

[0018] 2. In this utility model, by setting the anti-fouling ring, the shielding ring can form a closed ring with the anti-fouling ring after being separated from the nozzle, so that the intercepted rust removal medium is sealed in the receiving groove of the shielding ring, further avoiding the possibility of the intercepted rust prevention medium scattering during the movement, and preventing the intercepted rust prevention medium from falling on the inner wall of the pipe fitting, which would cause uneven rust prevention medium layer formed after spraying.

[0019] 3. In this utility model, the rust-preventive medium accumulated in the shielding ring can be removed through the recycling pipe, which facilitates the reuse of the shielding ring and also makes it easier to collect and process the intercepted rust-preventive medium, making it more convenient to use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0022] Figure 2 This is a schematic diagram of the side view structure in this embodiment;

[0023] Figure 3 This is a cross-sectional view of the mounting base, anti-fouling ring, and shielding ring in this embodiment.

[0024] In the diagram: 1. Mounting base; 11. Anti-fouling ring; 12. Sliding hole; 2. Nozzle; 21. Spray hole; 3. Walking wheel frame assembly; 4. Conveying pipe; 5. Covering ring; 51. Receiving groove; 52. Sealing ring; 6. Push-pull component; 61. Connecting ring; 62. Connecting rod; 7. Electric push rod; 8. Recycling pipe; 9. Cable. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: Reference Figures 1-3 The coating nozzle for rust prevention treatment of pipe fittings shown includes a mounting base 1, a nozzle 2 fixed in the middle of the mounting base 1, a conveying pipe 4 for conveying rust prevention medium fixed at the tail end of the nozzle 2, and multiple sets of walking wheel frames 3 for driving the mounting base 1 to move in a circular array around the mounting base 1.

[0027] The nozzle 2 is provided with a shielding ring 5. A push-pull member 6 is fixedly connected to one side of the shielding ring 5 to drive the shielding ring 5 to move along the axis of the nozzle 2. The push-pull member 6 is slidably installed on the mounting base 1. An electric push rod 7 that drives the push-pull member 6 to move is also installed on the side of the mounting base 1 away from the spray hole 21 on the nozzle 2.

[0028] Among them, the push-pull component 6 includes a connecting ring 61 and a connecting rod 62. The connecting ring 61 is movably sleeved on the conveying pipe 4 and there is a gap between the inner wall and the conveying pipe 4.

[0029] One end of the connecting rod 62 is fixed to one side of the connecting ring 61, and the other end of the connecting rod 62 slides through the sliding hole 12 on the mounting base 1 and is fixed to the side of the shielding ring 5 near the conveying pipe 4.

[0030] One end of the electric push rod 7 is fixed to the side of the mounting base 1 away from the shielding ring 5, and the piston rod end of the electric push rod 7 is fixed to the side wall of the connecting ring 61 near the mounting base 1.

[0031] Based on the above structure, during use, firstly, the nozzle 2 is opened, allowing the uneven initial anti-rust medium sprayed from the nozzle 2 to be blocked and intercepted by the shielding ring 5, preventing the uneven initial anti-rust medium from being sprayed onto the inner wall of the pipe fitting. Then, simply open the electric push rod 7, causing the electric push rod 7 to move the connecting ring 61 away from the nozzle 2. This, in turn, causes the shielding ring 5 to move synchronously via the connecting rod 62. After the shielding ring 5 is opened, the uniform anti-rust medium sprayed from the spray hole 21 on the nozzle 2 is applied to the inner wall of the pipe fitting. Then, the traveling wheel frame 3 drives the mounting base 1 to move, thereby completing the anti-rust treatment of the entire pipe fitting. The spray nozzle is used to uniformly spray rust prevention onto the inner wall of the pipe fitting. After completion, the electric push rod 7 is activated again, which drives the shielding ring 5 to move towards the spray nozzle 2 through the connecting ring 61 and the connecting rod 62. The shielding ring 5 surrounds the spray nozzle 2 and blocks the spray hole 21. Then the spray nozzle 2 is closed, so that the uneven rust prevention medium sprayed from the spray hole 21 is also intercepted. This can prevent uneven rust prevention medium from being sprayed onto the inner wall of the pipe fitting at the beginning and end of the spraying, thereby improving the quality of the pipe fitting after rust prevention treatment.

[0032] Furthermore, when using an integrated coating nozzle to achieve the above effects, there is no need to repeatedly install and remove the sleeve during the spraying process. This simplifies the process and improves the efficiency of rust prevention treatment of pipe fittings while achieving good rust prevention results.

[0033] Furthermore, the shielding ring 5 is an annular cover with an inner receiving groove 51. When the shielding ring 5 is placed on the nozzle 2, the receiving groove 51 corresponds to the position of the nozzle 21. After the shielding ring 5 moves to the side of the delivery pipe 4, the nozzle 21 is exposed.

[0034] By setting up the receiving tank 51, the intercepted anti-rust medium can be gathered in the receiving tank 51, preventing the intercepted anti-rust medium from scattering, thereby further ensuring the quality of anti-rust treatment of the inner wall of the pipe fitting after coating.

[0035] Furthermore, the front end of the mounting base 1 is also fixed with a dirt-proof ring 11. The front end of the dirt-proof ring 11 is rotatably fitted with the back side of the nozzle 2, and the outer diameter of the dirt-proof ring 11 is the same as the diameter of the nozzle 2.

[0036] After the shielding ring 5 moves backward, it covers the outside of the anti-fouling ring 11 and forms a closed ring with the anti-fouling ring 11.

[0037] By setting the anti-fouling ring 11, the shielding ring 5 can form a closed ring with the anti-fouling ring 11 after it is separated from the nozzle 2. This allows the intercepted rust-removing medium to be sealed in the receiving groove 51 of the shielding ring 5, further preventing the intercepted rust-preventing medium from scattering during movement and preventing the intercepted rust-preventing medium from falling on the inner wall of the pipe fitting, which would result in an uneven rust-preventing medium layer after spraying.

[0038] Furthermore, a sealing ring 52 is fixedly embedded in the inner wall of the shielding ring 5. When the shielding ring 5 is placed on the nozzle 2, the sealing ring 52 is in an interference fit with the side wall of the nozzle 2. When the shielding ring 5 is placed on the anti-fouling ring 11, the sealing ring 52 is in an interference fit with the outer wall of the anti-fouling ring 11.

[0039] By setting the sealing ring 52, the sealing performance of the shielding ring 5 when it is placed on the nozzle 2 or the anti-fouling ring 11 can be improved, preventing the anti-rust medium from overflowing from the shielding ring 5 after being sprayed, thus ensuring the effectiveness of the shielding ring 5 in intercepting the anti-rust medium.

[0040] Furthermore, a recovery pipe 8 is fixed and connected to the lower end of the shielding ring 5. The end of the recovery pipe 8 away from the shielding ring 5 passes through the mounting base 1 and is connected to an external suction pump. The middle part of the recovery pipe 8 is tied to the delivery pipe 4 with a cable tie. The rust-preventing medium accumulated in the shielding ring 5 can be sucked out through the recovery pipe 8, which facilitates the reuse of the shielding ring 5 and also facilitates the centralized collection and treatment of the intercepted rust-preventing medium, making it more convenient to use.

[0041] It should be noted that a cable 9 should also be tied to the conveying pipe 4 so that the cable 9 is electrically connected to the walking wheel frame 3 and the electric push rod 7, thereby providing power to the walking wheel frame 3 and the electric push rod 7 to meet the operating requirements of the coating nozzle for the anti-rust treatment of the pipe fitting.

[0042] It should be further explained that the walking wheel frame group 3 is composed of a retractable wheel frame, walking wheels, and a drive structure for driving the retractable wheel frame to unfold and retract, which are commonly used in the prior art and applicable to this embodiment. Its specific structure and working principle are all existing technologies (such as the structure and principle shown in the video https: / / v.youku.com / v_show / id_XNjQyMzMzMTU5Ng==.html), and will not be described again here.

[0043] The working principle of this utility model is as follows: In daily use, firstly, the nozzle 2 is opened, causing the uneven initial anti-rust medium sprayed from the nozzle 2 to be blocked and intercepted by the shielding ring 5, preventing the uneven initial anti-rust medium from being sprayed onto the inner wall of the pipe fitting. Then, simply open the electric push rod 7, causing the electric push rod 7 to drive the connecting ring 61 to move away from the nozzle 2. This, in turn, drives the shielding ring 5 to move synchronously through the connecting rod 62. After the shielding ring 5 is opened, the uniform anti-rust medium sprayed from the spray hole 21 on the nozzle 2 is coated onto the inner wall of the pipe fitting. Then, the traveling wheels... The frame assembly 3 drives the mounting base 1 to move, thereby moving the entire pipe fitting anti-rust treatment spray nozzle to complete the uniform spraying anti-rust treatment on the inner wall of the pipe fitting. After completion, the electric push rod 7 is activated again, so that the electric push rod 7 drives the shielding ring 5 to move towards the nozzle 2 through the connecting ring 61 and the connecting rod 62, so that the shielding ring 5 surrounds the nozzle 2 and blocks the spray hole 21. Then the nozzle 2 is closed, so that the uneven anti-rust medium sprayed from the nozzle 2 through the spray hole 21 is also intercepted, completing the anti-rust treatment operation on the inner wall of the pipe fitting.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating nozzle for rust prevention treatment of pipe fittings, comprising a mounting base (1), wherein a nozzle (2) is fixed in the middle of the mounting base (1), and a conveying pipe (4) for conveying rust-preventing medium is fixed at the tail end of the nozzle (2), and multiple sets of walking wheel frames (3) for driving the mounting base (1) to move are arranged in a circular array around the mounting base (1), characterized in that: The nozzle (2) is provided with a shielding ring (5). A push-pull member (6) is fixedly connected to one side of the shielding ring (5) to drive the shielding ring (5) to move along the axis of the nozzle (2). The push-pull member (6) is slidably mounted on the mounting base (1). An electric push rod (7) to drive the push-pull member (6) to move is also installed on the side of the mounting base (1) away from the spray hole (21) on the nozzle (2).

2. The coating nozzle for rust prevention treatment of pipe fittings according to claim 1, characterized in that: The shielding ring (5) is an annular cover with an inner receiving groove (51). When the shielding ring (5) is placed on the nozzle (2), the receiving groove (51) corresponds to the position of the nozzle (21). After the shielding ring (5) moves to the side of the delivery pipe (4), the nozzle (21) is exposed.

3. The coating nozzle for rust prevention treatment of pipe fittings according to claim 2, characterized in that: The front end of the mounting base (1) is also fixed with a dirt-proof ring (11), the front end of the dirt-proof ring (11) is rotatably fitted with the back side of the nozzle (2), and the outer diameter of the dirt-proof ring (11) is the same as the diameter of the nozzle (2); After the shielding ring (5) moves backward, it covers the outside of the anti-fouling ring (11) and forms a closed ring with the anti-fouling ring (11).

4. A coating nozzle for rust prevention treatment of pipe fittings according to claim 3, characterized in that: A sealing ring (52) is fixedly embedded in the inner wall of the shielding ring (5). When the shielding ring (5) is placed on the nozzle (2), the sealing ring (52) is in interference fit with the side wall of the nozzle (2). When the shielding ring (5) is placed on the anti-fouling ring (11), the sealing ring (52) is in interference fit with the outer wall of the anti-fouling ring (11).

5. A coating nozzle for rust prevention treatment of pipe fittings according to claim 2, characterized in that: The lower end of the shielding ring (5) is also fixed and connected to a recovery pipe (8). The end of the recovery pipe (8) away from the shielding ring (5) passes through the mounting base (1) and is connected to an external suction pump. The middle part of the recovery pipe (8) is tied to the delivery pipe (4) with a cable tie.

6. A coating nozzle for rust prevention treatment of pipe fittings according to claim 1, characterized in that: The push-pull component (6) includes a connecting ring (61) and a connecting rod (62). The connecting ring (61) is movably sleeved on the conveying pipe (4) and there is a gap between the inner wall and the conveying pipe (4). One end of the connecting rod (62) is fixed to one side of the connecting ring (61), and the other end of the connecting rod (62) slides through the sliding hole (12) on the mounting base (1) and is fixed to the side of the shielding ring (5) near the conveying pipe (4); One end of the electric push rod (7) is fixed to the side of the mounting base (1) away from the shielding ring (5), and the piston rod end of the electric push rod (7) is fixed to the side wall of the connecting ring (61) near the mounting base (1).

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