Anti-overflow device for production of polyurethane thermal insulation pipe

Abstract

The utility model discloses a polyurethane thermal insulation pipe production spill-proof device which comprises a spill-proof body, sliding assemblies are fixed to the two sides of the spill-proof body respectively, two supporting frames are connected to the sliding assembly on each side, supporting legs are connected to the interiors of the supporting frames in a sliding mode, and bottom base plates are fixed to the bottoms of the supporting legs. Through the designed sliding assembly, the supporting frame, the supporting legs and the bottom base plate, one end of the supporting frame is connected into the sliding block, the supporting position of the supporting frame is adjusted through sliding of the sliding block in the sliding frame, then the four supporting legs are moved downwards to be supported on the ground, and the anti-overflow body located on the heat preservation pipe is supported and centralized; and the anti-overflow body is prevented from skewing to influence the compression anti-overflow effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of the production of thermal insulation pipes, and particularly relates to an anti-overflow device for the production of polyurethane thermal insulation pipes. Background Technique

[0002] At present, in the production process of the pipe-in-pipe of the thermal insulation pipe, after drilling a material injection hole in the middle part of the outer layer pipe, that is, the polyethylene outer protection layer, a polyurethane high-pressure foaming machine injects liquid polyurethane raw materials into the above-mentioned material injection hole. After injection, the polyurethane undergoes a chemical reaction and foams and expands. The liquid polyurethane gradually solidifies and fills all the spaces between the two pipes, that is, the working pipe and the outer protection pipe, with the expansion. During the foaming process, the material injection hole is sealed with a plug. An anti-overflow device for the production of polyurethane thermal insulation pipes with the application number 202322397231.8 includes an anti-overflow body. One side of the anti-overflow body is used to abut against the plug of the outer protection layer of the thermal insulation pipe, and this side has an arc surface in the same direction as the outer protection layer of the thermal insulation pipe; a groove is opened on the arc surface that abuts against the plug. Thus, by pressing the anti-overflow body against the plug of the outer protection layer of the thermal insulation pipe, the problem that polyurethane is easily flushed open the plug under high pressure and sprayed or overflowed from the material injection hole is solved, avoiding causing certain dangers, waste and product quality problems, ensuring the performance indexes such as the density and hardness of the polyurethane thermal insulation layer, reducing the potential danger caused by the overflow of polyurethane, and reducing costs.

[0003] The above anti-overflow device presses on the plug to ensure that the plug will not become loose under high-pressure impact and cause polyurethane to spray or overflow from the material injection hole. However, there are the following defects: (1) The anti-overflow device is placed on the outer wall of the thermal insulation pipe and presses on the top of the plug. However, during the pressing process of the anti-overflow, since the anti-overflow body is placed on the thermal insulation pipe and the thermal insulation pipe is circular in structure, it is easy to cause the anti-overflow body to slide and tilt along the pipe wall, affecting the pressing and anti-overflow effect.

[0004] (2) When the anti-overflow device for the production of polyurethane thermal insulation pipes is in use, if its weight is insufficient, heavy objects are stacked on its top plane to increase the pressing gravity. However, when the heavy objects are directly placed on the top plane of the anti-overflow device, it is easy to slide, resulting in unstable stacking and weight gain. For this reason, we propose an anti-overflow device for the production of polyurethane thermal insulation pipes. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an anti-overflow device for the production of polyurethane thermal insulation pipes to solve the problems that the anti-overflow device for the production of polyurethane thermal insulation pipes is prone to skew, affecting the pressing and anti-overflow effect, and at the same time, when heavy objects are placed on the top plane, it is easy to slide, resulting in unstable stacking and weight gain as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: An anti-overflow device for the production of polyurethane insulation pipes, comprising an anti-overflow body, wherein sliding components are fixed on both sides of the anti-overflow body, and two support frames are respectively connected to each side of the sliding components. A support leg is slidably connected inside the support frame, and a bottom backing plate is fixed to the bottom of the support leg.

[0007] Preferably, the sliding component is composed of a sliding frame and two sliders, and the two sliders are slidably connected inside the sliding frame. The end of the slider is connected to the support frame, and the sliding frame is fixed on the surface of the anti-overflow body.

[0008] Preferably, the longitudinal section of the slider is a convex-shaped structure, and the cross-sections of the slider and the sliding frame are both rectangular structures.

[0009] Preferably, a limiting hole is provided on the side wall of the support leg, and a limiting block is arranged inside the limiting hole. The limiting block is fixed on the support frame.

[0010] Preferably, the longitudinal section of the support frame is an L-shaped structure, and the cross-section of the support leg is a rectangular structure.

[0011] Preferably, a spring is arranged at the top of the support leg, and the spring is inside the support frame.

[0012] Preferably, a cavity box is fixed on the top of the anti-overflow body by embedding. A liquid injection hole is provided on the surface of the cavity box, and a sealing column is threadedly connected to the liquid injection hole.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] (1) Through the designed sliding component, support frame, support leg and bottom backing plate, one end of the support frame is connected inside the slider. The support position is adjusted by sliding the slider inside the sliding frame, and then the four support legs are moved downward to support on the ground, so as to support and straighten the anti-overflow body on the insulation pipe, avoiding the anti-overflow body from being skewed and affecting the anti-overflow effect of pressing. Through the designed limiting hole and limiting block, the support leg is limited to prevent the support leg from falling off the support frame. Through the designed spring, the spring applies an elastic extrusion force to the support leg to push it to slide down quickly, avoiding the support leg from being affected by the frictional resistance of the inner wall of the support frame and being unable to slide down automatically.

[0015] (2) Through the designed cavity box, liquid injection hole and sealing column, by injecting liquid into the cavity box and blocking the liquid injection hole with the seal, compared with the traditional weight-increasing method, the weight-increasing is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 is the front structural sectional view of the present utility model;

[0018] Figure 3 for the present utility model Figure 2 the enlarged view of part A therein;

[0019] Figure 4 for the present utility model Figure 2 the enlarged view of part B therein;

[0020] In the figure: 1, anti-overflow body; 2, cavity box; 3, liquid injection hole; 4, sealing column; 5, sliding frame; 6, sliding block; 7, sliding assembly; 8, support frame; 9, support leg; 10, bottom cushion plate; 11, limiting hole; 12, limiting block; 13, spring. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment

[0023] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: an anti-overflow device for the production of polyurethane insulating pipes, including an anti-overflow body 1. Sliding assemblies 7 are fixed on both sides of the anti-overflow body 1, and two support frames 8 are respectively connected to each side of the sliding assembly 7. A support leg 9 is slidably connected inside the support frame 8, and a bottom cushion plate 10 is fixed to the bottom of the support leg 9. The sliding assembly 7 is composed of a sliding frame 5 and two sliding blocks 6, and the two sliding blocks 6 are slidably connected inside the sliding frame 5. The end of the sliding block 6 is connected to the support frame 8, and the sliding frame 5 is fixed on the surface of the anti-overflow body 1. By designing the sliding assembly 7, support frame 8, support leg 9 and bottom cushion plate 10, one end of the support frame 8 is connected inside the sliding block 6. The support position is adjusted by sliding the sliding block 6 inside the sliding frame 5, and then the four support legs 9 are moved downward to support on the ground, so as to support and straighten the anti-overflow body 1 on the insulating pipe, avoiding the anti-overflow body 1 from being skewed and affecting the anti-overflow effect of pressing. The longitudinal section of the sliding block 6 is a convex structure, and the cross sections of the sliding block 6 and the sliding frame 5 are both rectangular structures.

[0024] In this embodiment, preferably, a limiting hole 11 is formed in the side wall of the support leg 9, and a limiting block 12 is arranged inside the limiting hole 11. The limiting block 12 is fixed on the support frame 8. Through the designed limiting hole 11 and limiting block 12, the support leg 9 is limited to prevent the support leg 9 from falling off the support frame 8. The longitudinal section of the support frame 8 is an L-shaped structure, and the cross-section of the support leg 9 is a rectangular structure. A spring 13 is arranged at the top of the support leg 9. Through the designed spring 13, the spring 13 applies an elastic extrusion force to the support leg 9 to push it to slide down quickly, preventing the support leg 9 from being affected by the frictional resistance of the inner wall of the support frame 8 and being unable to slide down automatically, and the spring 13 is inside the support frame 8.

[0025] In this embodiment, preferably, a cavity box 2 is fixedly embedded at the top of the anti-overflow body 1. A liquid injection hole 3 is formed on the surface of the cavity box 2, and a sealing column 4 is connected to the liquid injection hole 3 by a thread. Through the designed cavity box 2, liquid injection hole 3 and sealing column 4, by injecting liquid into the cavity box 2 and blocking the liquid injection hole 3 with the sealing column 4, compared with the traditional weight-increasing method, the weight increase is more stable and reliable.

[0026] The working principle and usage process of the present utility model: Unscrew the sealing column 4 from the liquid injection hole 3 of the present utility model, inject liquid into the cavity box 2 to increase the weight of the anti-overflow body 1, then place the anti-overflow body 1 at the plug cover on the heat preservation pipe, adjust its support position by sliding the slider 6 in the sliding frame 5, and then move the four support legs 9 downward so that they support on the ground to support and straighten the anti-overflow body 1 on the heat preservation pipe, preventing the anti-overflow body 1 from being skewed and affecting the anti-overflow effect of pressing.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-overflow device for the production of polyurethane insulation pipes, comprising an anti-overflow body (1), characterized in that: Sliding components (7) are fixed on both sides of the anti-overflow body (1), and two support frames (8) are respectively connected to each side of the sliding component (7). A support leg (9) is slidably connected inside the support frame (8), and a bottom backing plate (10) is fixed to the bottom of the support leg (9).

2. The anti-overflow device for the production of polyurethane insulation pipes according to claim 1, characterized in that: The sliding component (7) is composed of a sliding frame (5) and two sliders (6), and the two sliders (6) are slidably connected inside the sliding frame (5). The end of the slider (6) is connected to the support frame (8), and the sliding frame (5) is fixed on the surface of the anti-overflow body (1).

3. The anti-overflow device for the production of polyurethane insulation pipes according to claim 2, characterized in that: The longitudinal section of the slider (6) is a convex-shaped structure, and the cross-sections of the slider (6) and the sliding frame (5) are both rectangular structures.

4. The anti-overflow device for the production of a polyurethane insulation pipe according to claim 1, characterized in that: A limiting hole (11) is formed in the side wall of the support leg (9), a limiting block (12) is arranged inside the limiting hole (11), and the limiting block (12) is fixed on the support frame (8).

5. A polyurethane insulation pipe production anti-overflow device according to claim 1, characterized in that: The longitudinal section of the support frame (8) is an L-shaped structure, and the cross-section of the support leg (9) is a rectangular structure.

6. The anti-overflow device for the production of polyurethane insulation pipes according to claim 1, characterized in that: A spring (13) is arranged at the top of the support leg (9), and the spring (13) is inside the support frame (8).

7. The anti-overflow device for the production of polyurethane insulation pipes according to claim 1, characterized in that: A cavity box (2) is fixedly embedded at the top of the anti-overflow body (1). A liquid injection hole (3) is formed in the surface of the cavity box (2), and a sealing column (4) is threadedly connected to the liquid injection hole (3).

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