End plugging device for prefabricated thermal insulation pipe

Abstract

An end plugging device for a prefabricated heat preservation pipe comprises a foaming platform used for containing an outer protection pipe and a steel pipe, plugging flanges used for sealing a foaming cavity between the outer protection pipe and the steel pipe are arranged on the two sides of the foaming platform, an anti-splashing assembly is arranged on the outer side of the corresponding plugging flange, and the anti-splashing assembly comprises an anti-splashing cover arranged on the outer side of the plugging flange in a sleeving mode. A drawable storage box is arranged on the lower portion in the splash-proof cover, a hydraulic cylinder used for moving forwards is arranged on the back of the splash-proof cover, and the splash-proof cover is connected with the supporting frames on the two sides of the foaming platform in a sliding and supporting mode. The anti-splashing assembly is arranged on the outer side of the plugging flange, so that a series of problems caused by splashing of the filled polyurethane material are fundamentally solved, the cleanliness and tidiness of the operation environment are greatly guaranteed, meanwhile, the situation that the polyurethane material splashes to the body of an operator, and consequently the body health of the operator is affected is prevented, and the service life of the operator is prolonged. And meanwhile, the splashed polyurethane material can be gathered in the splash-proof cover, so that the labor intensity of operators can be reduced during cleaning.

Description

Technical Field

[0001] The utility model relates to the field of thermal insulation pipes, and in particular to an end plugging device for prefabricated thermal insulation pipes. Background Art

[0002] The prefabricated insulation pipe is composed of an outer protective pipe, an insulation layer, and a steel pipe. When making the insulation pipe, the steel pipe is first inserted into the outer protective pipe, and a foaming cavity is formed between them. Then, a sealing flange is used to seal the foaming cavity formed between the outer protective pipe and the steel pipe. After the sealing is completed, a foaming machine is used to fill the interior with polyurethane to form an insulation layer.

[0003] In the existing production of the thermal insulation layer, since there will be a certain pressure when filling the polyurethane material, when the foaming cavity is filled, the polyurethane material often sprays out from the exhaust holes and some gaps, and the sprayed polyurethane material will splash everywhere. The splashed polyurethane material may splash onto the skin of the operator, which is easy to cause skin allergies and irritate the respiratory tract. Since the splashed polyurethane material is irregular, it is extremely cumbersome to clean it manually, which will greatly increase the labor intensity of the operator. In addition, if the splashed polyurethane material is not cleaned for a long time, it will harden and adhere to the attachment. In this case, it needs to be heated before it can be detached when cleaning. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides an end plugging device for a prefabricated thermal insulation pipe.

[0005] The utility model is realized through the following technical solutions:

[0006] A prefabricated thermal insulation pipe end plugging device comprises a foaming platform for placing an outer protective tube and a steel tube, sealing flanges for closing a foaming cavity between the outer protective tube and the steel tube are arranged on both sides of the foaming platform, and a splash-proof component is arranged on the outer side of the corresponding sealing flange, the splash-proof component comprises a splash-proof cover sleeved on the outer side of the sealing flange, a pull-out storage box is arranged at the lower part of the splash-proof cover, a hydraulic cylinder for forward movement is arranged on the back of the splash-proof cover, the splash-proof cover is connected to the support frames on both sides of the foaming platform in a sliding support, and a heating component is arranged on the inner side wall of the splash-proof cover.

[0007] Further optionally, sliders are provided on both sides of the splash shield, a slide bar is connected between the support frame and the foaming platform, and the sliders are connected to the slide bar sliding support.

[0008] Further optionally, a handle is provided on the outside of the storage box.

[0009] Further optionally, the hydraulic cylinder is connected and fixed to the support frame, and the piston rod of the hydraulic cylinder is connected and fixed to the back of the splash shield.

[0010] Further optionally, the sealing flange is fixed inside the splash shield via a connecting rod.

[0011] Further optionally, a plurality of exhaust holes penetrating the sealing flange are provided in a ring shape on the sealing flange.

[0012] Further optionally, the heating component includes a heating wire, and the heating wire is electrically connected to an external power source.

[0013] Compared with the existing technology, the beneficial effects of the utility model are: the utility model fundamentally solves a series of problems caused by the splashing of polyurethane material after filling by arranging an anti-splash component on the outside of the sealing flange, greatly ensures the cleanliness of the operating environment, and prevents splashing on the body of the operator, thereby affecting the health of the operator. At the same time, the splashed polyurethane material will gather in the anti-splash cover, which will also reduce the labor intensity of the operator during cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 yes Figure 1 A partial enlarged schematic diagram;

[0016] Figure 3 It is a partial cross-sectional schematic diagram of the utility model;

[0017] Figure 4 This is a practical partial release schematic diagram

[0018] In the figure: foaming platform 1, outer protective tube 2, steel pipe 3, support frame 4, sealing flange 5, splash cover 6, storage box 7, handle 8, slide bar 9, slide block 10, hydraulic cylinder 11, filling hole 12, foaming machine 13, exhaust hole 14, connecting rod 15, foaming chamber 16, heating wire 17. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0020] like Figure 1 , 3 As shown, a prefabricated thermal insulation pipe end sealing device includes a foaming platform 1 for placing an outer protective tube 2 and a steel tube 3, and sealing flanges 5 for closing a foaming cavity 16 between the outer protective tube 2 and the steel tube 3 are arranged on both sides of the foaming platform 1, and a splash-proof component is arranged on the outer side of the corresponding sealing flange 5, and the splash-proof component includes a splash-proof cover 6 sleeved on the outer side of the sealing flange 5, a pull-out storage box 7 is arranged at the lower part of the splash-proof cover 6, a hydraulic cylinder 11 for forward movement is arranged on the back of the splash-proof cover 6, the splash-proof cover 6 is connected to the support frames 4 on both sides of the foaming platform 1 in a sliding manner, and a heating component is arranged on the inner side wall of the splash-proof cover 6.

[0021] like Figure 1 , 3 As shown, sliders 10 are provided on both sides of the splash shield 6, a slide bar 9 is connected between the support frame 4 and the foaming platform 1, and the sliders 10 are connected to the slide bar 9 by sliding support.

[0022] like Figure 1 , 3 As shown, a handle 8 is provided on the outside of the storage box 7 .

[0023] like Figure 1 , 3 As shown, the hydraulic cylinder 11 is connected and fixed to the support frame 4 , and the piston rod of the hydraulic cylinder 11 is connected and fixed to the back of the splash cover 6 .

[0024] like Figure 2 , 3 As shown, the sealing flange 5 is fixed inside the splash shield 6 via a connecting rod 15 .

[0025] like Figure 2 As shown, a plurality of exhaust holes 14 penetrating the sealing flange 5 are provided in an annular shape on the sealing flange 5 .

[0026] like Figure 4 As shown, the heating assembly includes a heating wire 17, and the heating wire 17 is electrically connected to an external power source.

[0027] The implementation principle of the end plugging device for a prefabricated thermal insulation pipe in the embodiment of the present application is as follows:

[0028] When making the insulation pipe, the steel pipe 3 is inserted into the outer protective pipe 2. When inserting, an anti-eccentric bracket is used to ensure that the steel pipe 3 and the outer protective pipe 2 are arranged concentrically. After the steel pipe 3 and the outer protective pipe 2 are inserted, a foaming cavity 16 is formed between the steel pipe 3 and the outer protective pipe 2. The steel pipe 3 is placed on the foaming platform 1, and both ends are prepared to be blocked.

[0029] When plugging, the hydraulic cylinder 11 is started, the output rod of the hydraulic cylinder 11 extends and pushes the splash shield 6 to move forward with the slide rod 9 as the axis. During the movement, the plugging flange 5 will move forward with it, and the foaming cavity 16 formed by the steel pipe 3 and the outer protective tube 2 will be plugged during the forward movement. After the plugging is completed, it is ready to be filled with polyurethane;

[0030] During filling, the spray gun of the foaming machine 13 is installed on the filling hole 12 opened on the outer protective tube 2, and the foaming machine 13 is started at the same time. The foaming machine will slowly fill the polyurethane into the foaming cavity 16. When the polyurethane filling is completed, the polyurethane will be sprayed out from the exhaust hole 14 (when the polyurethane material is sprayed out from the exhaust hole 14, the polyurethane material has filled the foaming cavity 16). The sprayed polyurethane material will fall into the splash shield 6, some will directly fall into the storage box 7 at the bottom, and a part will adhere to the inner wall of the splash shield 6. At the same time, the heating wire 17 is powered, and the heating wire 17 is powered. After the wire 17 is powered, the temperature of the inner wall of the splash shield 6 will increase to prevent the polyurethane material from drying out and hardening. The heated polyurethane material will slide along the side wall of the splash shield 6 into the storage box 7 at the bottom. When it is observed that there is a lot of polyurethane material in the storage box 7 (depending on the on-site situation), the handle 8 is pulled to pull out the storage box 7, and the waste in the storage box 7 is inverted in the external waste collection area. After the inversion is completed, the storage box 7 is placed in the splash shield 6 to continue collecting the polyurethane material sprayed from the exhaust hole 14. The whole process saves time and effort, while also ensuring the surrounding environment.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A prefabricated thermal insulation pipe end plugging device, comprising a foaming platform (1) for placing an outer protective pipe (2) and a steel pipe (3), and sealing flanges (5) for sealing a foaming cavity (16) between the outer protective pipe (2) and the steel pipe (3) are arranged on both sides of the foaming platform (1), characterized in that: An anti-splash component is arranged corresponding to the outer side of the sealing flange (5), and the anti-splash component includes a splash cover (6) sleeved on the outer side of the sealing flange (5), a pull-out storage box (7) is arranged at the lower part of the inside of the splash cover (6), a hydraulic cylinder (11) for moving forward is arranged at the back of the splash cover (6), the splash cover (6) is connected to the support frames (4) on both sides of the foaming platform (1) by sliding support, and a heating component is arranged on the inner side wall of the splash cover (6).

2. The end plugging device for a prefabricated thermal insulation pipe according to claim 1 is characterized in that: Slide blocks (10) are provided on both sides of the splash shield (6), a slide bar (9) is connected between the support frame (4) and the foaming platform (1), and the slide block (10) is connected to the slide bar (9) in a sliding support manner.

3. The end plugging device for a prefabricated thermal insulation pipe according to claim 1 is characterized in that: A handle (8) is provided on the outside of the storage box (7).

4. The end plugging device for a prefabricated thermal insulation pipe according to claim 1, characterized in that: The hydraulic cylinder (11) is connected and fixed to the support frame (4), and the piston rod of the hydraulic cylinder (11) is connected and fixed to the back of the splash shield (6).

5. The end plugging device for a prefabricated thermal insulation pipe according to claim 1, characterized in that: The sealing flange (5) is fixed inside the splash shield (6) via a connecting rod (15).

6. The end plugging device for a prefabricated thermal insulation pipe according to claim 5, characterized in that: The sealing flange (5) is provided with a plurality of exhaust holes (14) in an annular shape and passing through the sealing flange (5).

7. The end plugging device for a prefabricated thermal insulation pipe according to claim 1, characterized in that: The heating component comprises a heating wire (17), and the heating wire (17) is electrically connected to an external power source.

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