Diameter-variable thermal insulation mold

Abstract

The utility model provides a variable-diameter heat preservation mold, which belongs to the technical field of pipeline heat preservation layer forming and comprises a flexible PVC (polyvinyl chloride) transparent plate and a tension band component. According to the utility model, the flexible PVC transparent plate and the tension band assembly are used for forming the heat preservation mold, so that the manufacturing is simple, and the cost is low; and by utilizing the characteristics that two edges of the flexible PVC transparent plate can be partially overlapped and the flexible PVC transparent plate is variable, the outer diameter of the flexible PVC transparent plate rolled into the circular ring can be properly adjusted according to the outer diameter of an actual construction pipeline and the filling thickness of the required polyurethane foaming material, so that the purpose of universality is achieved, and the construction progress can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline thermal insulation layer forming technical field, concretely is a variable diameter type thermal insulation mould. BACKGROUND

[0002] In pipeline engineering construction, in order to prevent pipe material freezing, its thermal insulation measure is essential due to winter climate, the commonly used mode is that polyurethane foaming thermal insulation pipe is formed on the outside of pipeline, and the specific process is as follows: the mould is sleeved on the outside of construction pipeline, an annular chamber is formed between the mould and construction pipeline, then polyurethane is injected in the annular chamber, and polyurethane foaming forms polyurethane thermal insulation layer on the outside of construction pipeline, that is, polyurethane foaming thermal insulation pipe.

[0003] At present, the mould used is mostly two semicircular structures connected by hinges, and the manufacture is complex, the cost is higher, and the mould cannot cope with pipe materials of various pipe diameters, thereby affecting the construction progress of the project, and the utility model provides a variable diameter type thermal insulation mould. UTILITY MODEL CONTENT

[0004] In order to solve the problems that the existing mould is complex to manufacture, the cost is high, and the mould cannot cope with pipe materials of various pipe diameters, thereby affecting the construction progress of the project, the utility model provides a variable diameter type thermal insulation mould.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A variable diameter type thermal insulation mould comprises:

[0007] The flexible PVC transparent plate is sheet-shaped, and the flexible PVC transparent plate is processed into an arc shape through a hot rolling and shaping process;

[0008] The hoop assembly is clamped on the outside of the flexible PVC transparent plate when the flexible PVC transparent plate is rolled into a circular shape;

[0009] The first end of the hoop assembly is provided with a threaded row hole, and the second end of the hoop assembly is rotatably provided with a screw piece.

[0010] As a further description of the above technical scheme:

[0011] Further comprising: a plug piece, the plug piece is overall in the shape of a fan ring, a plurality of V-shaped openings are formed at the inner ring edge of the plug piece, and the plug piece is connected to the end of the flexible PVC transparent plate through a rope.

[0012] As a further description of the above technical scheme:

[0013] The flexible PVC transparent plate comprises a connecting piece and two PVC arc-shaped pieces symmetrically fixed on two sides of the connecting piece.

[0014] As a further description of the above technical solution:

[0015] The two sides of the connecting piece are provided with a strip-shaped aperture, and the side edge of the PVC arc-shaped piece is fixedly connected to the inner side of the strip-shaped aperture.

[0016] As a further description of the above technical solution:

[0017] Further comprising: a telescopic supporting assembly connected to the inner side of the connecting piece, wherein the telescopic supporting assembly is provided in plurality, and the plurality of telescopic supporting assemblies are distributed along the length direction of the connecting piece.

[0018] As a further description of the above technical solution:

[0019] The telescopic supporting assembly comprises:

[0020] A threaded column, one end of which is fixedly connected to the connecting piece;

[0021] A supporting square column, one end of which is threadedly connected to the threaded column, and the other end of the supporting square column away from the threaded column is provided with an aperture;

[0022] A supporting piece, which is clamped on the inner side of the aperture, and one end of the supporting piece away from the supporting square column is fixedly connected with an arc-shaped piece.

[0023] As a further description of the above technical solution:

[0024] The aperture is square, and a guide bevel is arranged at the opening of the aperture, and a rubber block is fixedly connected to the inner side of the aperture.

[0025] The utility model discloses the beneficial effect:

[0026] The utility model discloses a flexible PVC transparent plate and hoop assembly are used as the heat preservation mould through the heat roll shaping process, when using, the two edges of the flexible PVC transparent plate can overlap a part, and then the flexible PVC transparent plate can be adjusted the outer diameter of the roll into the circular ring according to the actual construction pipeline's outer diameter, the thickness of the required polyurethane foaming material filling, to reach the universal purpose.

[0027] The utility model discloses a flexible PVC transparent plate and hoop assembly are used as the heat preservation mould, which is simple to manufacture, low in cost, and can be prepared in batches in the construction site, thereby improving the convenience of construction. DRAWINGS

[0028] In order to more clearly show a variable diameter type heat preservation mold, the following drawings are shown;

[0029] Figure 1 It is a perspective view of the utility model;

[0030] Figure 2 It is a front view of the utility model;

[0031] Figure 3 It is Figure 2 It is a sectional view of the section line A-A;

[0032] Figure 4 It is Figure 3 It is a local enlarged schematic view of B;

[0033] Figure 5 It is a perspective view of the flexible PVC transparent plate of the utility model;

[0034] Figure 6 It is Figure 5 It is a local enlarged schematic view of C.

[0035] The reference signs in the drawings are as follows:

[0036] 1, flexible PVC transparent plate; 101, connecting piece; 101a, bar-shaped socket; 102, PVC arc-shaped piece; 2, hoop assembly; 2a, threaded hole; 2b, screw piece; 3, plug piece; 3a, V-shaped port; 3b, rope body; 4, construction pipeline; 5, telescopic support assembly; 501, threaded column; 502, support square column; 502a, rubber block; 503, support piece; 504, arc-shaped piece. DETAILED DESCRIPTION

[0037] Please refer to the accompanying Figures 1-6 , a variable diameter type heat preservation mold provided by the embodiment of the application is shown, which comprises: a flexible PVC transparent plate 1 and a hoop assembly 2; wherein the flexible PVC transparent plate 1 is in a sheet shape, and the flexible PVC transparent plate 1 is processed into an arc shape through a heat rolling setting process, the heat rolling setting process is a common way of setting a plate (a plastic plate) at present, the flexible PVC transparent plate 1 in a flat sheet shape is preheated, and then is rolled on a cylindrical setting mold, after secondary heating, the flexible PVC transparent plate 1 is obtained after cooling, the present scheme needs to utilize the variability of the flexible PVC transparent plate 1, so that a larger cylindrical setting mold (larger than the diameter of the circle that the flexible PVC transparent plate 1 needs to be rolled into) can be used, and the hoop assembly 2 adopts a structure that can be tightened and adjusted.

[0038] In use, the flexible PVC transparent plate 1 is wound outside the construction pipe 4, at this time, the two edges of the flexible PVC transparent plate 1 can be overlapped, and then the flexible PVC transparent plate 1 is adjusted to the outer circular shape suitable for the construction pipe 4, when the flexible PVC transparent plate 1 is wound into a circle, the hoop assembly 2 is buckled outside the flexible PVC transparent plate 1, so as to keep the flexible PVC transparent plate 1 stable, the user controls the construction pipe 4 to be located at the center of the flexible PVC transparent plate 1 wound into a circle, so that the inside of the flexible PVC transparent plate 1 and the outside of the construction pipe 4 form an annular space, the mixed polyurethane foaming material is filled into the annular space, after the polyurethane foaming material is shaped, the hoop assembly 2 is removed, and the flexible PVC transparent plate 1 is removed.

[0039] In the above use mode, since the two edges of the flexible PVC transparent plate 1 can be overlapped, and the flexible PVC transparent plate 1 itself is variable, the user can adjust the outer diameter of the flexible PVC transparent plate 1 wound into a circular ring according to the actual outer diameter of the construction pipe 4 and the thickness of the polyurethane foaming material to be filled, so as to achieve the purpose of universality.

[0040] In an embodiment, the hoop assembly 2 can use a sheet metal strip, and the first end of the hoop assembly 2 is provided with a threaded hole 2a, and the threaded hole 2a is distributed along the length direction of the hoop assembly 2, and the second end of the hoop assembly 2 is rotatably installed with a screw member 2b, in use, the hoop assembly 2 is wound outside the flexible PVC transparent plate 1, the screw member 2b is positioned corresponding to one of the threaded holes in the threaded hole 2a, then the screw member 2b is rotated, so that the bottom end of the screw member 2b is threadedly connected with the threaded hole, at this time, the hoop assembly 2 is in a ring shape.

[0041] According to the design of the threaded hole 2a structure, the diameter of the hoop assembly 2 can be adjusted according to the needs, so as to fasten the flexible PVC transparent plate 1 with different outer diameters.

[0042] In an embodiment, in order to reduce the overflow of the polyurethane foaming material from the two ends of the annular space inside the flexible PVC transparent plate 1, a plug member 3 is also designed, the plug member 3 is in a whole fan ring shape, the arc of the plug member 3 is selected to be about 180°, and a plurality of V-shaped openings 3a are formed at the inner ring edge of the plug member 3, the inner diameter of the plug member 3 with this structure can be enlarged by external force, and the plug member 3 is tightly clamped outside the construction pipe 4.

[0043] The plug member 3 is connected to the end of the flexible PVC transparent plate 1 through a rope 3b, so that the plug member 3 is integrated with the flexible PVC transparent plate 1, and the plug member 3 is prevented from being lost.

[0044] In an embodiment, the flexible PVC transparent plate 1 comprises a connecting piece 101 and two PVC arc-shaped pieces 102 symmetrically fixed on both sides of the connecting piece 101, the connecting piece 101 serves to connect the two PVC arc-shaped pieces 102, and the connecting piece 101 is thickened PVC material with high structural strength, which can serve as a framework structure to connect the telescopic support assembly 5.

[0045] In an embodiment, a strip-shaped socket 101a is formed on each side of the connecting piece 101, and the side edge of the PVC arc-shaped piece 102 is fixedly connected to the inner side of the strip-shaped socket 101a.

[0046] In an embodiment, the telescopic support assembly 5 is further provided, which is connected to the inner side of the connecting piece 101, and a plurality of telescopic support assemblies 5 are arranged along the length direction of the connecting piece 101, the length of the telescopic support assembly 5 can be adjusted, and one end of the telescopic support assembly 5 is abutted against the outer side of the construction pipeline 4 during use, so as to facilitate the user to control the position of the flexible PVC transparent plate 1.

[0047] In an embodiment, the telescopic support assembly 5 comprises a threaded column 501, a supporting square column 502, a supporting piece 503, and an arc-shaped piece 504.

[0048] The one end of the threaded column 501 is fixedly connected to the connecting piece 101, the one end of the supporting square column 502 is a long threaded hole,

[0049] The one end of the supporting square column 502 is threadedly connected to the threaded column 501, the end of the supporting square column 502 away from the threaded column 501 is provided with a socket, the supporting piece 503 is clamped on the inner side of the socket, and the end of the supporting piece 503 away from the supporting square column 502 is fixedly connected to the arc-shaped piece 504.

[0050] The supporting piece 503 and the arc-shaped piece 504 are galvanized iron pieces integrated together, which can be well abutted against the outer side of the construction pipeline 4, and the galvanized iron piece is clamped on the inner side of the socket of the supporting square column 502. After the thermal insulation polyurethane foam is formed, the flexible PVC transparent plate 1 is disassembled, the supporting square column 502 and the threaded column 501 are removed, and the galvanized iron piece is in contact with the thermal insulation polyurethane foam.

[0051] In an embodiment, the socket is square-shaped, the opening of the socket is provided with a guide bevel, the inner side of the socket is fixedly connected to a rubber block 502a, the rubber block 502a applies an elastic clamping force to the supporting piece 503 to stably clamp the supporting piece 503, and when the flexible PVC transparent plate 1 is disassembled later, a slightly larger pulling force is applied to separate the supporting square column 502 and the galvanized iron piece.

[0052] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0053] It should be understood that any reference to a term herein, such as "first" and "second", and the like, can be taken as a mere designation in the description for the purposes of differentiating between two separate entities or operations without necessarily implying or requiring any actual relationship or order between or among such entities or operations. The application is not limited to the precise construction and instrumentalities shown in the drawings and as such variations and modifications can be effected without departing from the scope of the application. The scope of the application is limited only by the claims that follow.

Claims

1. A variable-diameter thermal insulation mold, characterized in that, include: Flexible PVC transparent sheet (1), wherein the flexible PVC transparent sheet (1) is sheet-like and is processed into an arc shape by a hot rolling and shaping process; The hoop assembly (2) is attached to the outside of the flexible PVC transparent sheet (1) when the flexible PVC transparent sheet (1) is rolled into a circle; The first end of the hoop assembly (2) is provided with a threaded hole (2a), and the second end of the hoop assembly (2) is rotatably mounted with a screw (2b).

2. The variable diameter heat-insulating mold according to claim 1, characterized in that, Also includes: The end cap (3) is in the shape of a fan ring, and several V-shaped openings (3a) are provided at the inner edge of the end cap (3). The end cap (3) is connected to the end of the flexible PVC transparent plate (1) by a rope (3b).

3. The variable diameter heat-insulating mold according to claim 1, characterized in that, The flexible PVC transparent panel (1) includes: a connector (101) and two PVC arc-shaped parts (102), which are symmetrically fixed on both sides of the connector (101).

4. A variable diameter thermal insulation mold according to claim 3, characterized in that: The connector (101) has strip-shaped slots (101a) on both sides, and the side of the PVC arc-shaped part (102) is fixedly connected to the inside of the strip-shaped slots (101a).

5. A variable diameter thermal insulation mold according to claim 3, characterized in that, It also includes: a retractable support component (5), which is connected to the inner side of the connector (101). Multiple retractable support components (5) are provided, and the multiple retractable support components (5) are distributed along the length direction of the connector (101).

6. A variable diameter thermal insulation mold according to claim 5, characterized in that, The retractable support assembly (5) includes: A threaded post (501), one end of which is fixedly connected to a connector (101); A support column (502) is provided, one end of which is threadedly connected to a threaded column (501), and a notch is provided at the end of the support column (502) away from the threaded column (501). The support member (503) is snapped into the inside of the slot, and an arc-shaped member (504) is fixedly connected to the end of the support member (503) away from the support column (502).

7. A variable diameter thermal insulation mold according to claim 6, characterized in that: The bayonet is square, and a guide bevel is provided at the opening of the bayonet. A rubber block (502a) is fixedly connected to the inner side of the bayonet.

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