Anti-corrosion polyethylene curtain coating device outside pipeline

Abstract

The utility model discloses a pipeline external anti-corrosion polyethylene shower coating device which comprises a shower coating unit, the shower coating unit comprises a supporting frame and a semicircular shell fixedly connected to the top of the supporting frame, the top of the semicircular shell is connected with a protective shell through a hinge, the inner wall of the semicircular shell is fixedly connected with a sealing disc, one side of the sealing disc is fixedly connected with a storage box, and the other side of the sealing disc is fixedly connected with a rotating shaft; one side of the storage box is fixedly communicated with an air pump, the top of the storage box is fixedly communicated with a spraying pipe penetrating through the sealing disc, the limiting unit comprises a servo motor fixedly installed on one side of the sealing disc, and the output end of the servo motor penetrates through the sealing disc and is fixedly connected with a threaded rod. According to the utility model, a closed space can be provided for the pipeline by closing the protective shell, so that polyethylene subjected to shower coating cannot drift around and is in full contact with the pipeline, and redundant polyethylene is remained in the semicircular shell and can be recycled, so that waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipeline outer anti -corrosion polyethylene shower coating device belongs to pipeline outer anti -corrosion polyethylene shower coating device technical field. BACKGROUND

[0002] The anti -corrosion polyethylene coating is a kind of coating with excellent anticorrosive performance, is widely used in the anticorrosive protection of various metals and non-metallic materials, and the main film-forming substance of the anti -corrosion polyethylene coating is polyethylene resin.Polyethylene resin has good corrosion resistance, water resistance, weather resistance and mechanical properties, can effectively protect the object to be coated from corrosion and damage, and the type of polyethylene resin is many, such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), linear low-density polyethylene (LLDPE) etc., pipeline can contact various corrosive media, such as acid, alkali, salt etc., polyethylene coating has excellent chemical corrosion resistance, can effectively block the erosion of these corrosive substances to the metal surface of pipeline, and provides reliable protection for pipeline, prolongs the service life of pipeline.

[0003] In order to be able to use for a long time, the outer wall of pipeline is usually showered with anti -corrosion polyethylene, and the polyethylene is usually in powder form so as to be attached to the outer wall of pipeline, so as to form anticorrosion layer to protect pipeline, in the process of showering polyethylene on pipeline, the environment of showering lacks sealing measures, since polyethylene is in powder form, this makes polyethylene powder easy to drift in air in the process of showering, thereby not only being difficult to shower pipeline uniformly, but also being easy to cause the waste of polyethylene, therefore, a pipeline outer anti -corrosion polyethylene shower coating device is provided. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the prior art, the utility model is proposed.

[0006] Therefore, the utility model aims to provide a pipeline outer anti -corrosion polyethylene shower coating device, which is suitable for solving the problem that the environment of showering lacks sealing measures when showering polyethylene on pipeline, so that polyethylene powder is easy to drift in air in the process of showering, thereby not only being difficult to shower pipeline uniformly, but also being easy to cause the waste of polyethylene.

[0007] To solve the above technical problems, the utility model provides technical scheme as follows: A pipeline outer anti -corrosion polyethylene shower coating device, it includes

[0008] The shower coating unit includes a support frame, a semicircular shell fixedly connected to the top of the support frame, a protective shell connected to the top of the semicircular shell through a hinge, a sealing disc fixedly connected to the inner wall of the semicircular shell, a storage box fixedly connected to one side of the sealing disc, an air pump fixedly communicated to one side of the storage box, and a spray pipe fixedly communicated to the top of the storage box and penetrating the sealing disc.

[0009] The limiting unit includes a servo motor fixedly installed on one side of the sealing disc, a threaded rod penetrating the sealing disc and fixedly connected to the output end of the servo motor, a circular ring threadedly sleeved on the outer wall of the threaded rod, a rotating disc rotatably connected to the inner wall of the circular ring, two rectangular openings formed in one side of the rotating disc, a sliding plate slidingly arranged on the inner side of each of the two rectangular openings, a fixed plate fixedly connected to one side of the rotating disc, a forward-reverse screw rod penetrating the fixed plate and rotatably connected to one side of the fixed plate, and a clamping plate fixedly connected to the same side of each of the two sliding plates.

[0010] As a preferred scheme of the pipeline outer anti-corrosion polyethylene shower coating device, the two sides of each of the two sliding plates are fixedly connected to a baffle, and the size of the baffle is adapted to the rectangular opening of the rotating disc.

[0011] As a preferred scheme of the pipeline outer anti-corrosion polyethylene shower coating device, two telescopic rods are fixedly connected to one side of the rotating disc, and a cross plate is fixedly connected to the end portions of the two telescopic rods.

[0012] As a preferred scheme of the pipeline outer anti-corrosion polyethylene shower coating device, a limiting disc is rotatably connected to one side of the fixed plate, and the limiting disc is composed of a plurality of discs with diameters decreasing in sequence and fixedly connected to each other.

[0013] As a preferred scheme of the pipeline outer anti-corrosion polyethylene shower coating device, a recycling pipe penetrating the sealing disc is fixedly connected to one side of the sealing disc, and a valve is sleeved on the outer wall of the recycling pipe.

[0014] As a preferred scheme of the pipeline outer anti-corrosion polyethylene shower coating device, a limiting block is fixedly connected to the inner wall of the semicircular shell, and a U-shaped rod is fixedly connected to the side wall of the protective shell.

[0015] The utility model discloses a beneficial effect: through closing protection shell can provide closed space for pipeline, make polyethylene of shower coating not float around and fully contact with pipeline, and the polyethylene of the excessive polyethylene is kept in semicircle shell and can be recycled, through the space of moving ring compression polyethylene shower coating, can be according to the different length of pipeline shower coating and the application amount of polyethylene, further can high -efficiently save the dosage of polyethylene. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing of the utility model make a simple introduction, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Wherein:

[0017] Figure 1 The utility model discloses a pipeline outer anti -corrosion polyethylene shower coating device whole structure schematic diagram is shown;

[0018] Figure 2 The utility model discloses a protective shell unfolding structure schematic diagram is shown;

[0019] Figure 3 The utility model discloses a baffle and sliding plate connecting structure schematic diagram is shown;

[0020] Figure 4 The utility model discloses a sliding plate and turntable connecting structure schematic diagram is shown;

[0021] Figure 5 The utility model discloses a sliding plate and clamp plate connecting structure schematic diagram is shown. BRIEF DESCRIPTION OF DRAWINGS

[0023] 100, shower coating unit;101, support frame;102, semicircle shell;103, protection shell;104, sealing disc;105, storage box;106, air pump;107, spray pipe;108, recovery pipe;200, limiting unit;201, servo motor;202, threaded rod;203, ring;204, turntable;205, sliding plate;206, fixed plate;207, positive and negative toothed rod;208, clamp plate;209, baffle;210, telescopic rod;211, cross plate;212, limiting disc;213, limiting block;214, U-shaped rod. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, feature and advantage of the utility model more obvious and easy to understand, the specific embodiment of the utility model will be described in detail in the following with the drawings of the specification.

[0025] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that can not be described in detail herein, and the skilled in the art will appreciate that the present application can be practiced in a variety of ways, all of which are intended to be encompassed by the present application.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive with other embodiments.

[0027] Thirdly, the present application is described in detail in conjunction with the schematic diagram. In the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0028] Embodiments

[0029] Reference Figures 1-5 For one embodiment of the present application, a pipeline external anti-corrosion polyethylene shower coating device is provided, comprising: a shower coating unit 100 and a limiting unit 200;

[0030] The shower coating unit 100 comprises a support frame 101 and a semicircular shell 102 fixedly connected to the top of the support frame 101. The top of the semicircular shell 102 is connected with a protective shell 103 through a hinge. The inner wall of the semicircular shell 102 is fixedly connected with a sealing disc 104. One side of the sealing disc 104 is fixedly connected with a storage box 105. One side of the storage box 105 is fixedly connected with an air pump 106. The top of the storage box 105 is fixedly connected with a spray pipe 107 penetrating through the sealing disc 104.

[0031] The limiting unit 200 comprises a servo motor 201 fixedly installed on one side of the sealing disc 104. The output end of the servo motor 201 penetrates through the sealing disc 104 and is fixedly connected with a threaded rod 202. The outer wall of the threaded rod 202 is threadedly sleeved with a circular ring 203. The inner wall of the circular ring 203 is rotatably connected with a rotating disc 204. Two rectangular openings are formed on one side of the rotating disc 204. Two sliding plates 205 are slidably arranged on the inner sides of the two rectangular openings. One side of the rotating disc 204 is fixedly connected with a fixed plate 206. One side of the fixed plate 206 is rotatably connected with a forward and reverse screw rod 207 penetrating through the fixed plate 206. Two sliding plates 205 are threadedly sleeved at the two ends of the forward and reverse screw rod 207. The same side of the two sliding plates 205 is fixedly connected with a clamping plate 208.

[0032] The diameter of the semicircular shell 102 is the same as that of the protective shell 103, the protective shell 103 can be deflected at will through the hinge, when the semicircular shell 102 is in full contact with the protective shell 103, one end of the protective shell 103 is blocked by the sealing disc 104, and the other end of the protective shell 103 is blocked by the circular ring 203 and the rotating disc 204, so as to form a closed cylindrical inner cavity, the pipeline is sprayed with polyethylene in the cylindrical inner cavity, the top of the storage box 105 is provided with a filling port for adding polyethylene, the polyethylene in the storage box 105 can be delivered to the spray pipe 107 through the air pump 106, and the polyethylene is discharged through the spray pipe 107 with high-pressure gas, before spraying, the protective shell 103 is opened, then the pipeline is aligned with the two clamping plates 208, and the two clamping plates 208 are inserted into the inside of the pipeline end, the rotating disc 204 is provided with two rotationally symmetrical rectangular grooves on one side, and the two sliding plates 205 are also rotationally symmetrical;

[0033] One end of the positive and negative toothed rod 207 is provided with a handle for rotating the positive and negative toothed rod 207, by rotating the positive and negative toothed rod 207, the two sliding plates 205 can drive the two clamping plates 208 to move away from each other or move close to each other, the two clamping plates 208 are arranged in parallel, the inner wall of the pipeline is clamped by the two clamping plates 208, so that the pipeline is suspended at the axis of the rotating disc 204, thereby facilitating the spraying of polyethylene, by rotating the positive and negative toothed rod 207, the two clamping plates 208 can clamp and fix the pipelines with different inner diameters;

[0034] When the fixing is completed, the protective shell 103 is deflected to be in full contact with the semicircular shell 102 and form a sealed space, then the threaded rod 202 is rotated by the servo motor 201, the threaded rod 202 is eccentrically arranged with the circular ring 203, so that the circular ring 203 drives the rotating disc 204 to move linearly along the threaded rod 202, when the pipeline is in contact with the sealing disc 104, the pipeline is sprayed with polyethylene through the spray pipe 107, the polyethylene can only circulate in the sealed space, so as not to scatter everywhere, so as to facilitate the polyethylene to fully contact with the pipeline, and the excess polyethylene naturally settles at the bottom of the semicircular shell 102, so as to be recycled, by moving the circular ring 203, the spraying space can be compressed, when the length of the pipeline is short, the amount of polyethylene can be saved by compressing the space, so as to avoid waste, after the spraying is completed, the circular ring 203 is moved away from the sealing disc 104 by the servo motor 201, then the protective shell 103 is opened, and then the pipeline can be taken out from the two clamping plates 208 by rotating the positive and negative toothed rod 207.

[0035] Further, the two sides of the two sliding plates 205 are fixedly connected with baffles 209, the size of the baffle 209 is matched with the rectangular opening of the rotating disc 204, one side of the rotating disc 204 is fixedly connected with two telescopic rods 210, the ends of the two telescopic rods 210 are fixedly connected with a cross plate 211.

[0036] When the rotating positive and negative toothed rod 207 is rotated, the two sliding plates 205 are moved along the rectangular opening of the rotating disc 204, and the baffle 209 is used to cover the rectangular opening, so as to prevent the polyethylene from floating from the rectangular opening, further reducing waste, and the side of the two sliding plates 205 is provided with a notch for the movement of the baffle 209, so that the two sliding plates 205 do not interfere with each other when the baffle 209 is moved;

[0037] The rotating disc 204 can rotate along the inner wall of the circular ring 203, and the cross plate 211 can drive the rotating disc 204 to rotate through the two telescopic rods 210, when the pipe is coated with polyethylene, the rotating disc 204 drives the pipe to rotate through the clamping plate 208, so that the polyethylene can be quickly and uniformly coated on the outer wall of the pipe, when the servo motor 201 drives the circular ring 203 to move, the rotating disc 204 can drive the telescopic rod 210 to automatically extend through the handheld cross plate 211, so that when the rotating disc 204 moves a certain distance, the worker can still drive the rotating disc 204 to rotate through the cross plate 211 and the two telescopic rods 210, to improve the efficiency of pipe coating.

[0038] Further, one side of the fixed plate 206 is rotatably connected with a limiting disc 212, the limiting disc 212 is composed of a plurality of discs with diameters decreasing in turn, one side of the sealing disc 104 is fixedly connected with a recycling pipe 108 penetrating the sealing disc 104, and the outer wall of the recycling pipe 108 is sleeved with a valve.

[0039] The axis of the limiting disc 212 is aligned with the axis of the rotating disc 204, the limiting disc 212 is composed of a plurality of discs with diameters decreasing in turn, the diameters of the plurality of discs gradually decrease towards the rotating disc 204, when one end of the pipe is fixed by the two clamping plates 208, the rotating disc 204 is driven by the servo motor 201 to move towards the sealing disc 104, so that the disc smaller than the inner diameter of the pipe is inserted into the end of the pipe, thereby assisting the support of the pipe, reducing the pressure of the clamping plate 208, and limiting the support of the pipe through the limiting disc 212, so that the pipe can rotate more smoothly;

[0040] When spraying polyethylene, the valve of the recovery pipe 108 is closed, and when the polyethylene in the storage tank 105 is used up, it remains sealed and is driven by the servo motor 201 to move the rotating disc 204 towards the sealing disc 104, so that the circular ring 203 scrapes the polyethylene on the inner wall of the protective shell 103 and the semicircular shell 102, and pushes the polyethylene accumulated at the bottom of the semicircular shell 102 towards the recovery pipe 108. When the clamping plate 208 contacts the limiting disc 212, it stops moving and opens the valve of the recovery pipe 108, which is connected to the recovery device. Then start the air pump 106 to make the spray pipe 107 spray high pressure gas, and the residual polyethylene is discharged through the recovery pipe 108 for recycling.

[0041] Further, the inner wall of the semicircular shell 102 is fixedly connected with a limiting block 213, and the side wall of the protective shell 103 is fixedly connected with a U-shaped rod 214.

[0042] The limiting block 213 is used to limit the circular ring 203, so that the circular ring 203 does not separate from the threaded rod 202 and always contacts the semicircular shell 102. The U-shaped rod 214 can facilitate workers to push the protective shell 103, so that the protective shell 103 can be quickly opened and closed.

[0043] During use, before spraying, polyethylene is added to the storage tank 105, then the protective shell 103 is opened by the U-shaped rod 214, then the pipe is aligned with the two clamping plates 208, the two clamping plates 208 are inserted into the inside of the pipe end, then the positive and negative toothed rod 207 is rotated to make the two sliding plates 205 drive the two clamping plates 208 to move, and the inner wall of the pipe is clamped by the two clamping plates 208, then the rotating disc 204 is driven by the servo motor 201 to move towards the sealing disc 104, so that the limiting disc 212 is inserted into the end of the pipe, then the protective shell 103 is deflected to completely contact the semicircular shell 102 and form a sealed space, then the polyethylene in the storage tank 105 is transported to the spray pipe 107 by the air pump 106, and the pipe is sprayed with polyethylene by the spray pipe 107;

[0044] Then the hand-held cross plate 211, and through the cross plate 211 and two telescopic rods 210 drive the rotating disc 204 to rotate, so that the polyethylene can be quickly and uniformly sprayed on the outer wall of the pipeline, after spraying, then through the servo motor 201 makes the ring 203 away from the sealing disc 104, then open the protective shell 103 and rotate the positive and negative toothed rod 207 so that its two clamping plates 208 no longer clamp the pipeline, then the pipeline can be taken out from the two clamping plates 208, when the polyethylene in the storage box 105 is used up, then through the ring 203 pushes the polyethylene accumulated at the bottom of the semicircular shell 102 towards the recovery pipe 108, then open the valve of the recovery pipe 108 and start the air pump 106, through the gas to make the residual polyethylene through the recovery pipe 108 to discharge, in order to recycle.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A polyethylene coating device for external corrosion protection of pipelines, characterized in that, include: A spray coating unit (100) includes a support frame (101) and a semi-circular shell (102) fixedly connected to the top of the support frame (101). The top of the semi-circular shell (102) is connected to a protective shell (103) via a hinge. A sealing disc (104) is fixedly connected to the inner wall of the semi-circular shell (102). A storage box (105) is fixedly connected to one side of the sealing disc (104). An air pump (106) is fixedly connected to one side of the storage box (105). A spray pipe (107) penetrating the sealing disc (104) is fixedly connected to the top of the storage box (105). The limiting unit (200) includes a servo motor (201) fixedly installed on one side of the sealing disc (104). The output end of the servo motor (201) passes through the sealing disc (104) and is fixedly connected to a threaded rod (202). A ring (203) is threadedly sleeved on the outer wall of the threaded rod (202). A turntable (204) is rotatably connected to the inner wall of the ring (203). Two rectangular openings are opened on one side of the turntable (204). Sliding plates (205) are slidably arranged on the inner side of the two rectangular openings. A fixing plate (206) is fixedly connected to one side of the turntable (204). A positive and negative threaded rod (207) passing through the fixing plate (206) is rotatably connected to one side of the fixing plate (206). The two sliding plates (205) are respectively threadedly sleeved on both ends of the positive and negative threaded rod (207). A clamping plate (208) is fixedly connected to the same side of the two sliding plates (205).

2. The polyethylene coating device for external corrosion protection of pipelines according to claim 1, characterized in that: Both sides of the two sliding plates (205) are fixedly connected with baffles (209), the size of which is adapted to the rectangular opening of the turntable (204).

3. The polyethylene coating device for external corrosion protection of pipelines according to claim 2, characterized in that: Two telescopic rods (210) are fixedly connected to one side of the turntable (204), and the ends of the two telescopic rods (210) are fixedly connected to a cross plate (211).

4. The polyethylene coating device for external corrosion protection of pipelines according to claim 1, characterized in that: One side of the fixed plate (206) is rotatably connected to a limiting disk (212), which is composed of multiple disks with successively decreasing diameters that are fixedly connected to each other.

5. The polyethylene coating device for external corrosion protection of pipelines according to claim 4, characterized in that: A recovery pipe (108) is fixedly connected to one side of the sealing disc (104) and passes through the sealing disc (104). A valve is sleeved on the outer wall of the recovery pipe (108).

6. The polyethylene coating device for external corrosion protection of pipelines according to claim 1, characterized in that: The inner wall of the semi-circular shell (102) is fixedly connected to a limiting block (213), and the side wall of the protective shell (103) is fixedly connected to a U-shaped rod (214).

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