Plastic pipe inner wall spraying device

Abstract

The utility model relates to the technical field of plastic pipe processing, in particular to a plastic pipe inner wall spraying device which comprises a supporting plate, a supporting rod is arranged at the rear end of the upper side wall of the supporting plate, an auxiliary plate is arranged at the upper end of the supporting rod, a telescopic device is arranged at the front end of the bottom wall of the auxiliary plate, and a reinforcing pump is arranged at the lower end of the telescopic device. A spray head is arranged at the lower end of the reinforcing pump, a connecting pipe with a water pump is arranged on the upper side wall of the auxiliary plate, a groove is formed in the upper side wall of the supporting plate, a clamping device is arranged in the groove, a storage box is arranged on the bottom wall of the supporting plate, and the telescopic device comprises a fixing cylinder, an electric threaded rod, a sliding rod and an auxiliary pipe. The clamping device comprises an electric telescopic rod and a control plate, a feeding pipe is arranged at one end of the upper side wall of the supporting plate, stepless adjustment of the height of the spray head is achieved, it is guaranteed that the spray head and the inner wall of the pipe keep the optimal spraying distance, and the coating thickness is uniform and free of faults.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe processing technology, specifically to a plastic pipe inner wall spraying device. Background Technology

[0002] As is well known, existing plastic pipes are widely used in construction, chemical, and agricultural fields due to their advantages such as being lightweight, corrosion-resistant, and easy to process. However, plastic pipes often face problems such as internal wall corrosion, wear, or insufficient functionality during use. Therefore, it is necessary to coat their inner walls to improve their performance.

[0003] Currently, the technology for spraying the inner wall of plastic pipes mainly relies on manual operation or semi-automated equipment, which presents some problems during use.

[0004] Specifically, existing spraying equipment mostly uses fixed nozzles, which are difficult to cover the entire circumference of the inner wall of the pipe, resulting in uneven coating thickness and affecting the anti-corrosion or wear resistance effect. At the same time, the spraying process relies on manual control of the nozzle movement path and paint flow, which makes it difficult to ensure consistency and is labor-intensive. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a device for spraying the inner wall of plastic pipes.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a plastic pipe inner wall spraying device, comprising a support plate, a support rod provided at the rear end of the upper side wall of the support plate, an auxiliary plate provided at the upper end of the support rod, a telescopic device provided at the front end of the bottom wall of the auxiliary plate, a reinforcing pump provided at the lower end of the telescopic device, a spray nozzle provided at the lower end of the reinforcing pump, a connecting pipe with a water pump provided on the upper side wall of the auxiliary plate, the connecting pipe being connected to the telescopic device, a groove provided on the upper side wall of the support plate, a clamping device provided in the groove, a storage box provided on the bottom wall of the support plate, and the lower end of the connecting pipe penetrating the bottom wall of the storage box.

[0009] To achieve precise adjustment of the nozzle height, this utility model improves upon the following: the telescopic device includes a fixed cylinder, an electric threaded rod, a sliding rod, and an auxiliary tube. The fixed cylinder is connected to the bottom wall of the auxiliary plate. The electric threaded rod passes through the fixed cylinder. The sliding rod is inside the fixed cylinder and fits against its inner wall. The electric threaded rod passes through the sliding rod and is threadedly connected to it. The auxiliary tube passes through both ends of the sliding rod. The upper end of the auxiliary tube is connected to the output end of the water pump, and the lower end is connected to the reinforcing pump.

[0010] To achieve rapid clamping and release of pipes and improve operational efficiency, this utility model has the following improvements: the clamping device includes an electric telescopic rod and a control plate, the electric telescopic rod is symmetrically arranged inside the groove, and the control plate is on one side of the electric telescopic rod.

[0011] To simplify the paint addition process and reduce downtime, the present invention includes the following improvements: a feed pipe is provided at one end of the side wall of the support plate, the feed pipe passes through the support plate and communicates with the storage box, and a detachable protective cover is provided at the upper end of the feed pipe.

[0012] In order to intercept particulate impurities in the paint and prevent clogging of the nozzle, the present invention is improved by making the bottom wall of the groove a filter screen material.

[0013] To ensure uniform atomization of the coating and coverage of the entire inner circumference of the pipe, the present invention is improved by having the following features: the nozzle has an annular porous structure with 20-30 atomizing nozzles of 0.2-0.5 mm in diameter evenly distributed on its outer wall.

[0014] To extend the service life of the auxiliary tube, the present invention is improved by making the auxiliary tube a flexible hose made of corrosion-resistant silicone material.

[0015] To prevent paint from dripping and reduce waste, the present invention is improved by providing an elastic anti-drip diaphragm at the bottom of the nozzle.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a plastic pipe inner wall spraying device, which has the following beneficial effects:

[0018] This plastic pipe inner wall spraying device is equipped with a telescopic device. The rotation of the electric threaded rod drives the sliding rod to rise and fall, thereby raising and lowering the spray head. This allows for stepless adjustment of the spray head height, ensuring that the spray head maintains the optimal spraying distance from the inner wall of the pipe, thus adapting to plastic pipes of different diameters.

[0019] By directly connecting the water pump and the booster pump through the auxiliary pipe, the continuity and stability of the coating delivery are ensured, resulting in a uniform coating thickness without any breaks.

[0020] The storage tank forms a closed-loop circulation system with the water pump through connecting pipes. Unused paint can flow back to the storage tank through the filter screen at the bottom of the groove, be filtered and reused, reduce paint waste and reduce environmental pollution.

[0021] The elastic anti-drip diaphragm at the bottom of the nozzle closes automatically after spraying, effectively preventing paint from dripping due to gravity. This keeps the working environment clean and avoids paint buildup at the nozzle opening, which could affect the quality of subsequent spraying. Attached Figure Description

[0022] Figure 1 This is a first-view schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a second-view schematic diagram of the structure of this utility model;

[0024] Figure 3 This is a third-view schematic diagram of the structure of this utility model;

[0025] Figure 4 This is an exploded view of the telescopic device of this utility model.

[0026] In the diagram: 1. Support plate; 2. Support rod; 3. Connecting pipe; 4. Auxiliary plate; 5. Fixing cylinder; 6. Reinforcing pump; 7. Nozzle; 8. Protective cover; 9. Storage box; 10. Electric telescopic rod; 11. Control panel; 12. Feed pipe; 13. Electric threaded rod; 14. Sliding rod; 15. Auxiliary pipe. Detailed Implementation

[0027] 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.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figure 1-4A plastic pipe inner wall spraying device includes a support plate 1, a support rod 2 disposed at the rear end of the upper side wall of the support plate 1, an auxiliary plate 4 disposed at the upper end of the support rod 2, a telescopic device disposed at the front end of the bottom wall of the auxiliary plate 4, a reinforcing pump 6 disposed at the lower end of the telescopic device, a spray nozzle 7 disposed at the lower end of the reinforcing pump 6, a connecting pipe 3 with a water pump disposed on the upper side wall of the auxiliary plate 4, the connecting pipe 3 being connected to the telescopic device, a groove disposed on the upper side wall of the support plate 1, a clamping device disposed within the groove, a storage box 9 disposed on the bottom wall of the support plate 1, the lower end of the connecting pipe 3 penetrating the bottom wall of the storage box 9, and the telescopic device including a fixed cylinder 5 and an electric threaded rod 13. The device includes a sliding rod 14 and an auxiliary tube 15. The fixed cylinder 5 is connected to the bottom wall of the auxiliary plate 4. The electric threaded rod 13 passes through the fixed cylinder 5. The sliding rod 14 is inside the fixed cylinder 5 and fits against its inner wall. The electric threaded rod 13 passes through the sliding rod 14 and is threadedly connected to it. The auxiliary tube 15 passes through both ends of the sliding rod 14. The upper end of the auxiliary tube 15 is connected to the output end of the water pump, and the lower end is connected to the reinforcing pump 6. The clamping device includes an electric telescopic rod 10 and a control plate 11. The electric telescopic rod 10 is symmetrically arranged inside the groove. The control plate 11 is on one side of the electric telescopic rod 10. The bottom wall of the groove is made of filter screen material.

[0031] During use, the plastic pipe to be sprayed is placed vertically in the groove on the upper side of the support plate 1, with both ends of the pipe positioned between the symmetrically arranged electric telescopic rods 10. By activating the electric telescopic rods 10, they move inward synchronously, firmly clamping the pipe in the groove. During clamping, the stroke of the electric telescopic rods 10 can be automatically adjusted according to the pipe diameter to ensure uniform clamping force and prevent deformation or damage to the pipe. After clamping, the electric threaded rod 13 is activated, and its internal motor drives the threaded rod to rotate. Since the sliding rod 14 is threadedly connected to the electric threaded rod 13, and the sliding rod 14 is tightly fitted to the inner wall of the fixed cylinder 5, the rotation of the threaded rod drives the sliding rod 14 to move vertically downward within the fixed cylinder 5. The movement of the sliding rod 14 causes the auxiliary pipes 15 and the nozzles 7 passing through its two ends to extend synchronously. By controlling the rotation angle of the electric threaded rod 13, the depth of the nozzle 7 inserted into the pipe can be precisely adjusted to ensure that the nozzle 7 maintains the optimal spraying distance from the inner wall of the pipe. At the same time, the water pump is started, and the water pump pumps the paint in the storage tank 9 to the auxiliary pipe 15 through the connecting pipe 3. The auxiliary pipe 15 delivers the paint to the booster pump 6, which pressurizes the paint and sprays it out through the nozzle 7 in an atomized state, ensuring that the coating thickness is uniform and without dead corners. During the spraying process, the paint that does not adhere to the inner wall of the pipe falls in liquid or atomized state and lands on the filter screen at the bottom of the groove. The filter screen intercepts particulate impurities in the paint, while allowing the liquid paint to flow back to the storage tank 9 through the filter screen. After being filtered, the paint in the storage tank 9 can be pumped back to the nozzle 7 by the water pump, realizing the recycling of paint, reducing waste and reducing environmental pollution.

[0032] In actual use, it is necessary to simplify the paint addition process, reduce downtime, and ensure the purity of the paint. In order to meet the above requirements, in this embodiment, a feed pipe 12 is provided at one end of the upper side wall of the support plate 1. The feed pipe 12 passes through the support plate 1 and communicates with the storage box 9. A detachable protective cover 8 is provided at the upper end of the feed pipe 12. The paint can be added into the storage box 9 by opening the protective cover 8.

[0033] In actual use, it is necessary to ensure that the coating is uniformly atomized and covers the entire circumference of the inner wall of the pipe to improve the coating quality. In order to meet the above requirements, in this embodiment, the nozzle 7 is an annular porous structure with 20-30 atomizing nozzles with a diameter of 0.2-0.5mm evenly distributed on its outer wall. The coating is evenly sprayed from the nozzles and can cover the entire circumference of the inner wall of the pipe.

[0034] In practical use, it is necessary to be able to withstand the chemicals in the coating and extend the service life of the auxiliary tube 15. In order to meet the above requirements, in this embodiment, the auxiliary tube 15 is a flexible hose made of corrosion-resistant silicone material.

[0035] In actual use, it is necessary to prevent paint from dripping and reduce waste. In order to meet the above requirements, in this embodiment, the bottom of the nozzle 7 is provided with an elastic anti-drip diaphragm.

[0036] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended only as examples, not as limiting the scope of protection of this application.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic pipe inner wall spraying device, comprising a support plate (1), characterized in that: A support rod (2) is provided at the rear end of the upper side wall of the support plate (1). An auxiliary plate (4) is provided at the upper end of the support rod (2). A telescopic device is provided at the front end of the bottom wall of the auxiliary plate (4). A reinforcing pump (6) is provided at the lower end of the telescopic device. A nozzle (7) is provided at the lower end of the reinforcing pump (6). A connecting pipe (3) with a water pump is provided on the upper side wall of the auxiliary plate (4). The connecting pipe (3) is connected to the telescopic device. A groove is provided on the upper side wall of the support plate (1). A clamping device is provided in the groove. A storage box (9) is provided on the bottom wall of the support plate (1). The lower end of the connecting pipe (3) penetrates the bottom wall of the storage box (9).

2. The plastic pipe inner wall spraying device according to claim 1, characterized in that: The telescopic device includes a fixed cylinder (5), an electric threaded rod (13), a sliding rod (14), and an auxiliary pipe (15). The fixed cylinder (5) is connected to the bottom wall of the auxiliary plate (4). The electric threaded rod (13) passes through the fixed cylinder (5). The sliding rod (14) is inside the fixed cylinder (5) and fits against its inner wall. The electric threaded rod (13) passes through the sliding rod (14) and is threadedly connected to it. The auxiliary pipe (15) passes through both ends of the sliding rod (14). The upper end of the auxiliary pipe (15) is connected to the output end of the water pump, and the lower end is connected to the reinforcing pump (6).

3. The plastic pipe inner wall spraying device according to claim 2, characterized in that: The clamping device includes an electric telescopic rod (10) and a control plate (11). The electric telescopic rod (10) is symmetrically arranged inside the groove, and the control plate (11) is on one side of the electric telescopic rod (10).

4. The plastic pipe inner wall spraying device according to claim 3, characterized in that: A feed pipe (12) is provided at one end of the upper side wall of the support plate (1). The feed pipe (12) passes through the support plate (1) and communicates with the storage box (9). A detachable protective cover (8) is provided at the upper end of the feed pipe (12).

5. The plastic pipe inner wall spraying device according to claim 4, characterized in that: The bottom wall of the groove is made of filter material.

6. The plastic pipe inner wall spraying device according to claim 5, characterized in that: The nozzle (7) has an annular porous structure with 20-30 atomizing nozzles of 0.2-0.5 mm in diameter evenly distributed on its outer wall.

7. The plastic pipe inner wall spraying device according to claim 6, characterized in that: The auxiliary tube (15) is a flexible hose made of corrosion-resistant silicone material.

8. The plastic pipe inner wall spraying device according to claim 7, characterized in that: The nozzle (7) is provided with an elastic anti-drip diaphragm at its bottom.

Images