Anti-rust spraying equipment for inner wall of nodular cast iron pipe

Abstract

The invention relates to the related technical field of spraying equipment, in particular to nodular cast iron pipe inner wall rust-proof spraying equipment which comprises a feeding pipe, a spraying device and a spraying device. The spraying head is arranged at one end of the feeding pipe; the fixed seat is fixedly connected to the outer side of the mounting pipe; the rod body is connected to the fixed seat in a sliding manner; the shell is fixedly connected to one end of the rod body; the round head rod is connected to the fixed seat in a sliding manner; according to the anti-rust spraying equipment for the inner wall of the nodular cast iron pipe, before spraying, the rod body is pulled, the position of the rod body is adjusted, the limiting ring is rotated and fixed, then the spraying head conducts anti-rust spraying operation on the inner wall of the nodular cast iron pipe in a pumping and conveying mode, spraying operation is completed, then the operation steps are repeated, the rod body is moved into the fixing base, and the rod body is fixed. The anti-rust spraying equipment for the inner wall of the nodular cast iron pipe is convenient to store and transfer, and the problem that existing anti-rust spraying equipment for the inner wall of the nodular cast iron pipe does not have a good adjusting function is solved.

Description

Technical Field

[0001] The present invention relates to related technical fields, and in particular to an anti-rust spraying device for the inner wall of a ductile iron pipe. Background Art

[0002] Ductile iron pipes are made by centrifugally casting ductile iron at high speed using a centrifugal ductile iron casting machine after adding a nodulizer to molten iron of grade 18 or higher. These pipes are often referred to as ductile iron pipes, ductile iron pipes, or ductile iron pipes. They are primarily used for conveying tap water and are an ideal material for water pipes. During the production and processing of ductile iron pipes, spraying equipment is required to apply anti-rust coating to the pipe interior, thereby improving the pipe's rust resistance.

[0003] At present, the ductile iron pipe inner wall anti-rust spraying equipment on the market is generally provided with an adjustment mechanism in order to be suitable for pipes of different diameters. For example, the patent with publication number CN221832631U discloses a tubular inner wall paint uniformity brushing machine, which drives the second sliding member to rotate by turning the knob, so that it moves linearly along the screw, drives the first sliding member to move and pushes the cross rod formed by the cross-hinged connection of the first connecting rod and the second connecting rod to stretch, so that the roller can contact the inner wall of the pipe, complete the positioning of the device inside the pipe, and facilitate the movement of subsequent devices. However, in actual use, its adjustment range is small, and it is not convenient for subsequent storage, which has certain limitations. Moreover, when used in conjunction with the subsequent protective nozzle, it can only spray pipes of specified models, which greatly reduces the practicality of the equipment and brings inconvenience to the spraying work. Summary of the Invention

[0004] The object of the present invention is to provide an anti-rust spraying device for the inner wall of a ductile iron pipe to solve the problems raised in the above background technology.

[0005] The technical solution adopted in the present invention is:

[0006] A ductile iron pipe inner wall anti-rust spraying device, comprising:

[0007] A feeding pipe, the outer side of which is fixedly connected to a mounting pipe;

[0008] A spray head is provided at one end of the feeding pipe;

[0009] A fixing seat, fixedly connected to the outside of the mounting tube;

[0010] A rod body, slidably connected to the fixing seat;

[0011] A housing, fixedly connected to one end of the rod;

[0012] a wheel rotatably connected to the inner side of the housing;

[0013] A round-head rod, slidably connected to the fixing seat;

[0014] A spring is sleeved on the outside of the round-headed rod, the round-headed rod is connected to the fixing seat through the spring, and one end of the round-headed rod is tightly pressed against the rod body;

[0015] A limiting ring is threadedly connected to the outer side of the mounting tube.

[0016] Optionally, the rod body is a telescopic rod, and a fixing bolt is threadedly connected to the rod body.

[0017] Optionally, a plurality of rod bodies are provided, and each of the rod bodies is provided with the shell and the wheel.

[0018] Optionally, a slide rail is fixedly connected to the outside of the mounting tube;

[0019] The cover body is slidably connected to the slide rail.

[0020] Optionally, the cross-section of the slide rail is I-shaped, and a stop block is fixedly connected to the top.

[0021] Optionally, the ring body is rotatably connected to the side surface of the limiting ring;

[0022] An insertion rod is fixedly connected to one side of the ring body, and the insertion rod passes through the fixing seat;

[0023] A slot is provided on a side surface of the slide rail;

[0024] A chute is provided in the mounting tube;

[0025] The slider is slidably connected in the slide groove and fixedly connected to the bottom of the slide rail.

[0026] Optionally, a slope is provided inside the insertion rod.

[0027] Optionally, a groove is provided on the outer side of the fixing seat.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] Before spraying, the ductile iron pipe inner wall anti-rust spraying equipment pulls the rod body, adjusts its position, rotates the limit ring to fix it, and then uses pumping to transport materials so that the spray head performs anti-rust spraying on the inner wall of the ductile iron pipe to complete the spraying operation. Then, the above operation steps are repeated, the rod body is moved to the fixed seat and fixed to complete storage, which is convenient for storage and transportation, and solves the problem that the existing ductile iron pipe inner wall anti-rust spraying equipment does not have a good adjustment function. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 This is a schematic diagram of the structure of this application;

[0032] Figure 2 This is a schematic diagram of the installation position structure of the cover body in this application;

[0033] Figure 3 Schematic diagram of the installation position structure of the plug rod in this application

[0034] Figure 4 This is a schematic diagram of the opening position structure of the chute in this application.

[0035] Reference numerals:

[0036] 10. Feeding pipe; 11. Installation pipe; 12. Spraying head;

[0037] 20. Fixed seat; 21. Rod body; 22. Housing; 23. Wheel; 24. Round rod; 25. Spring; 26. Limiting ring;

[0038] 30. Slide rail; 31. Cover;

[0039] 40. Ring body; 41. Insert rod; 42. Slot; 43. Slide groove; 44. Slider. DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042] In view of the current existing technology, by turning the knob, the second sliding member is driven to rotate, so that it moves in a straight line along the screw rod, driving the first sliding member to move and pushing the cross rod formed by the cross-hinged connection of the first connecting rod and the second connecting rod to extend, so that the roller can contact the inner wall of the pipe, completing the positioning of the device inside the pipe, and facilitating the movement of subsequent devices. However, in actual use, its adjustment range is small, and it is not convenient for subsequent storage, which has certain limitations. Moreover, when used in conjunction with the subsequent protective nozzle, it can only spray pipes of specified models, which greatly reduces the practicality of the equipment and brings inconvenience to the spraying work.

[0043] like Figure 1-4 As shown, an embodiment of the present invention provides an anti-rust spraying device for the inner wall of a ductile iron pipe, comprising: a feed pipe 10, the outer side of which is fixedly connected to a mounting pipe 11; a spray head 12, arranged at one end of the feed pipe 10; a fixed seat 20, fixedly connected to the outer side of the mounting pipe 11; a rod body 21, slidably connected to the fixed seat 20; a shell 22, fixedly connected to one end of the rod body 21; a wheel 23, rotatably connected to the inner side of the shell 22; a round head rod 24, slidably connected to the fixed seat 20; a spring 25, sleeved on the outer side of the round head rod 24, the round head rod 24 is connected to the fixed seat 20 through the spring 25, and one end of the round head rod 24 is tightly pressed against the rod body 21; a limiting ring 26, threadedly connected to the outer side of the mounting pipe 11.

[0044] Before spraying, pull the rod body 21 to make it slide in the fixing seat 20, and adjust the position of the rod body 21. At the same time, the rebound force of the spring 25 makes the round head rod 24 contact with the outside of the rod body 21, providing resistance for the adjustment of the position of the rod body 21, thereby making the adjustment more precise. Finally, after the wheel 23 on the inner side of the shell 22 at the outer end of the rod body 21 can fit into the inside of the pipe, rotate the limiting ring 26 so that it rotates and moves on the outside of the mounting tube 11 and contacts the outer end of the round head rod 24. Then, push the round head rod 24 to slide into the fixing seat 20, so that one end of the round head rod 24 is tightly pressed against the outside of the rod body 21, thereby fixing the position of the rod body 21 and completing the adjustment of the position of the wheel 23. Then, after connecting one end of the feed pipe 10 to the anti-corrosion paint delivery pipe, the installation pipe 11 and the structure thereon are passed through the entire pipeline and placed at one end of the pipeline. Then, the anti-corrosion paint delivery pipe is pulled, and the paint is delivered to the feed pipe 10 by pumping (which belongs to the existing technology and will not be described in detail). Then, the paint is sprayed out through the multiple nozzles on the spray head 12, so that while the wheel 23 moves, the spray head 12 performs an anti-rust spraying operation on the inner wall of the ductile iron pipe, and finally sprays it to the other end of the pipeline to complete the spraying operation. Then, the above-mentioned operation steps are repeated, and the position of the rod body 21 is adjusted again so that the rod body 21 slides completely into the fixing seat 20 to complete the storage, which is convenient for storage and transportation.

[0045] Specifically, a scale bar is provided on the outside of the rod body 21 to facilitate the staff to judge whether the adjustment distances of the multiple rod bodies 21 are consistent.

[0046] Furthermore, the rod body 21 is a telescopic rod, and a fixing bolt is threadedly connected to the rod body 21. The position of the rod body 21 can be adjusted once by sliding the rod body 21 into the fixing seat 20, and a secondary adjustment can be achieved by changing the telescopic length of the rod body 21.

[0047] Furthermore, a plurality of rod bodies 21 are provided, and each rod body 21 is provided with the housing 22 and the wheels 23 , so that multiple sets of wheels 23 work simultaneously, thereby improving stability.

[0048] Furthermore, the slide rail 30 is fixedly connected to the outside of the mounting tube 11 ; and the cover 31 is slidably connected to the slide rail 30 .

[0049] When the spraying operation is not required, the cover body 31 is pushed to slide on the slide rail 30 to cover the spray head 12 , thereby providing shielding and protection for the spray head 12 .

[0050] Furthermore, the cross section of the slide rail 30 is I-shaped, and a stopper is fixedly connected to the top, so that the cover body 31 slides more stably and has an anti-slip effect.

[0051] Furthermore, the ring body 40 is rotatably connected to the side of the limit ring 26; the insertion rod 41 is fixedly connected to one side of the ring body 40, and the insertion rod 41 passes through the fixed seat 20; the slot 42 is opened on the side of the slide rail 30; the slide groove 43 is opened in the mounting tube 11; the slider 44 is slidably connected in the slide groove 43 and fixedly connected to the bottom of the slide rail 30.

[0052] While rotating the limiting ring 26 to fix the position of the rod body 21, the ring body 40 and the insertion rod 41 are pushed, so that one end of the insertion rod 41 is inserted into the slot 42, pushing the slide rail 30 to generate an upward force, so that the slide rail squeezes the cover body 31, limiting the cover body 31, and simultaneously fixing the positions of the rod body 21 and the cover body 31, preventing the position of the cover body 31 from shifting during spraying, affecting the spraying, and after the spraying is completed, the cover body 31 has a better shielding and protective effect on the spray head 12.

[0053] Furthermore, an inclined surface is provided inside the insertion rod 41 to facilitate contact between the insertion rod 41 and the slot 42 .

[0054] Furthermore, a groove is provided on the outside of the fixing seat 20, so that the shell 22 can slide into the groove on the outside of the fixing seat 20, thereby reducing the occupied area and facilitating storage.

[0055] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An anti-rust spraying device for the inner wall of a ductile iron pipe, characterized in that: include: A feeding pipe (10), the outer side of which is fixedly connected to a mounting pipe (11); A spray head (12) is provided at one end of the feeding pipe (10); A fixing seat (20) fixedly connected to the outside of the mounting tube (11); A rod body (21) is slidably connected to the fixing seat (20); A housing (22) is fixedly connected to one end of the rod (21); a wheel (23) rotatably connected to the inner side of the housing (22); A round head rod (24) is slidably connected to the fixing seat (20); A spring (25) is sleeved on the outside of the round-headed rod (24); the round-headed rod (24) is connected to the fixing seat (20) via the spring (25); one end of the round-headed rod (24) is tightly pressed against the rod body (21); A limiting ring (26) is threadedly connected to the outer side of the mounting tube (11).

2. The rust-proof spraying equipment for the inner wall of a ductile iron pipe according to claim 1, characterized in that: The rod body (21) is a telescopic rod, and a fastening bolt is threadedly connected to the rod body (21).

3. The rust-proof spraying equipment for the inner wall of a ductile iron pipe according to claim 2, characterized in that: A plurality of rod bodies (21) are provided, and each rod body (21) is provided with the housing (22) and the wheel (23).

4. The rust-proof spraying equipment for the inner wall of a ductile iron pipe according to claim 1, characterized in that: include: A slide rail (30) fixedly connected to the outside of the mounting tube (11); The cover body (31) is slidably connected to the slide rail (30).

5. The rust-proof spraying equipment for the inner wall of a ductile iron pipe according to claim 4, characterized in that: The cross section of the slide rail (30) is I-shaped, and a stopper is fixedly connected to the top.

6. The rust-proof spraying equipment for the inner wall of a ductile iron pipe according to claim 4, characterized in that: include: A ring body (40) is rotatably connected to the side surface of the limiting ring (26); An inserting rod (41) is fixedly connected to one side of the ring body (40), and the inserting rod (41) passes through the fixing seat (20); A slot (42) is provided on a side surface of the slide rail (30); A chute (43) is provided in the mounting tube (11); The slider (44) is slidably connected in the slide groove (43) and fixedly connected to the bottom of the slide rail (30).

7. The rust-proof spraying equipment for the inner wall of a ductile iron pipe according to claim 6, characterized in that: The inserting rod (41) is provided with an inclined surface.

8. The rust-proof spraying equipment for the inner wall of a ductile iron pipe according to claim 1, characterized in that: A groove is formed on the outer side of the fixing seat (20).

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