Low-temperature anti-freezing spheroidal graphite pipe fitting

Abstract

The utility model discloses a low-temperature anti-freezing spheroidal graphite pipe fitting which comprises a pipe body, a plate seat, an air connecting end, a flange plate and a heat preservation sleeve, and the plate seat is arranged on the surface of the pipe body; the air connecting end heads are symmetrically arranged on the surface of the plate seat and are communicated with the interior of the plate seat; the flanges are arranged on two end surfaces of the pipe body; the heat preservation sleeves respectively sleeve the surface of the pipe body and the surface of the plate seat; the heat preservation sleeve is fixedly connected with the surface of the plate base through a quick fastener. Therefore, the cold resistance and freezing resistance of the pipe body can be effectively improved through the heat preservation sleeve, the heating mechanism is arranged in the pipe body, frozen liquid in the pipe body can be quickly thawed by supplying power to the heating mechanism to enable the heating mechanism to operate and emit heat, and the pipe body can be suitable for various extreme weather conditions; the device is further provided with an air connecting end, hot air is circularly injected into the plate base through the air connecting end, frozen liquid in the pipe body is quickly thawed, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of ductile iron pipe fittings, in particular to a low-temperature antifreeze ductile iron pipe fitting. Background Art

[0002] Ductile iron pipe fittings, also known as ductile iron pipes, are a high-performance cast iron pipe material. During the manufacturing process, ductile iron pipe fittings are added with magnesium or rare earth magnesium combined with gold spheroidizers before pouring to spheroidize graphite, thereby greatly reducing stress concentration and giving the pipes many advantages such as high strength, high elongation, impact resistance, corrosion resistance, and good sealing. These characteristics have made ductile iron pipe fittings widely used in the water supply industry, drainage industry, and sewage industry.

[0003] During the use of pipelines, especially outdoors or in cold areas, pipelines are often affected by weather factors. When the temperature drops sharply, the moisture in the pipeline may freeze, causing the volume of the pipeline to expand, and then there is a risk of freezing and cracking. In addition, the frozen liquid will also block the pipeline, affecting the normal transportation of the liquid and causing inconvenience to production and life.

[0004] In order to solve this problem, traditional pipeline antifreeze protection devices mostly use antifreeze foam. However, due to the single antifreeze method, the antifreeze effect of antifreeze foam is general and has certain limitations in use. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the utility model is to propose a low-temperature antifreeze ductile iron pipe fitting. The thermal insulation sleeve arranged in the device can effectively improve the cold resistance and antifreeze properties of the pipe body. A heating mechanism is arranged inside the device. By supplying power to the heating mechanism to make it run and generate heat, the frozen liquid inside the pipe body can be thawed quickly, so that the pipe body can be suitable for various extreme weather conditions. The device is also provided with an air connecting end, through which hot air is circulated and injected into the interior of the plate seat, the frozen liquid inside the pipe body can be thawed quickly, and the use effect is good.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a low-temperature antifreeze ductile iron pipe fitting, comprising a pipe body, a plate seat, a gas connection end head, a flange and a thermal insulation sleeve, wherein the plate seat is arranged on the surface of the pipe body; the gas connection end head is symmetrically arranged on the surface of the plate seat and is connected with the inside of the plate seat; the flange is arranged on the two end surfaces of the pipe body; the thermal insulation sleeve is respectively sleeved on the surface of the pipe body and the surface of the plate seat; the thermal insulation sleeve is fixedly connected to the surface of the plate seat by a fastener.

[0008] The utility model discloses a low-temperature antifreeze ductile iron pipe fitting. The heat-insulating sleeve arranged in the device can effectively improve the cold resistance and antifreeze property of the pipe body. A heating mechanism is arranged inside the device. By supplying power to the heating mechanism to make it run and generate heat, the frozen liquid inside the pipe body can be thawed quickly, so that the pipe body can be suitable for various extreme weather conditions. The device is also provided with an air connection end head, through which hot air is circulated and injected into the interior of the plate seat, the frozen liquid inside the pipe body can be thawed quickly, and the use effect is good.

[0009] In addition, the low-temperature antifreeze ductile iron pipe fittings proposed in the application may also have the following additional technical features:

[0010] Specifically, the thermal insulation sleeve includes an inner material layer, a thermal insulation layer, a heat insulating layer and a plastic outer shell, wherein the inner material layer, the thermal insulation layer, the heat insulating layer and the plastic outer shell are arranged in sequence from the inside to the outside and bonded and fixed; the outer surface of the plastic outer shell is provided with a waterproof film.

[0011] Specifically, the thermal insulation sleeve also includes a heating mechanism, which includes an electric heating belt, a flame retardant layer, an installation box, an electrical terminal and a wire, wherein the electric heating belt is arranged between the thermal insulation layer and the heat insulation layer; the flame retardant layer is arranged between the electric heating belt and the heat insulation layer; the installation box is arranged on the plastic shell, and the electrical terminal is arranged inside the installation box, and channels for facilitating the installation of the wire are opened on the flame retardant layer and the heat insulation layer. The wire is located in the channel, one end of the wire is connected to one end of the electric heating belt, and the other end of the wire is connected to one end of the electrical terminal.

[0012] Specifically, a hand groove and a fixing groove are respectively provided at positions corresponding to the positions of the plate seat surface and the heat preservation sleeve surface, and a through hole is provided at a position corresponding to the position of the heat preservation sleeve surface and the gas connection end.

[0013] Specifically, the fastener includes a connecting column, a connecting tube and an elastic clip, wherein one end of the connecting column is located inside the connecting tube and is slidably connected to the inner wall of the connecting tube; the elastic clip and the slot are respectively provided at positions corresponding to the positions of the one end surface of the connecting column and the inner wall of the connecting tube, and the elastic clip is fixedly connected to the slot.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of a low-temperature antifreeze ductile iron pipe fitting of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a heat preservation sleeve in a low-temperature antifreeze ductile iron pipe fitting of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a fastener in a low-temperature antifreeze ductile iron pipe fitting of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the installation box structure in a low-temperature antifreeze ductile iron pipe fitting.

[0020] As shown in the figure:

[0021] 1. Pipe body; 2. Plate seat; 3. Gas connection end; 4. Flange; 5. Insulation sleeve; 8. Fastener;

[0022] 51. Inner material layer; 52. Insulation layer; 55. Heat insulation layer; 56. Plastic outer shell;

[0023] 50. Heating mechanism; 53. Electric heating belt; 54. Flame retardant layer; 57. Installation box; 58. Electrical terminal; 59. Wire;

[0024] 6. Hand slot; 7. Fixing slot; 9. Through hole;

[0025] 81. Connecting column; 82. Connecting tube; 83. Elastic clip. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0027] A low-temperature antifreeze ductile iron pipe fitting according to an embodiment of the utility model will be described below in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 4 As shown, a low-temperature antifreeze ductile iron pipe fitting of an embodiment of the utility model includes a pipe body 1, a plate seat 2, a gas connection end head 3, a flange 4 and a thermal insulation sleeve 5, wherein the plate seat 2 is arranged on the surface of the pipe body 1; the gas connection end head 3 is symmetrically arranged on the surface of the plate seat 2 and is connected with the inside of the plate seat 2; the flange 4 is arranged on the surfaces of both ends of the pipe body 1; the thermal insulation sleeve 5 is respectively sleeved on the surface of the pipe body 1 and the surface of the plate seat 2; the thermal insulation sleeve 5 is fixedly connected to the surface of the plate seat 2 by a fastener 8.

[0029] Specifically, the utility model is provided with a hot air heating mechanism mainly composed of a plate seat 2 and an air connecting end 3, and a heat preservation heating and antifreeze mechanism mainly composed of a heat preservation sleeve 5. The heat preservation sleeve 5 can effectively improve the cold resistance and antifreeze property of the pipe body 1. A heating mechanism 50 is arranged inside the heat preservation sleeve 5. When the liquid inside the pipe body 1 is frozen, power can be supplied to the heating mechanism 50. The heating mechanism 50 is powered on and generates heat, which can quickly thaw the frozen liquid inside the pipe body 1, so that the pipe body 1 can be suitable for various extreme weather conditions. Hot air is circulated and injected into the plate seat 2 through the air connecting end 3, so that the frozen liquid inside the pipe body 1 can be quickly thawed, and the use effect is good.

[0030] In one embodiment of the present invention, Figure 2 As shown, the thermal insulation sleeve 5 includes an inner material layer 51, a thermal insulation layer 52, a heat insulating layer 55 and a plastic outer shell 56, wherein the inner material layer 51, the thermal insulation layer 52, the heat insulating layer 55 and the plastic outer shell 56 are arranged in sequence from the inside to the outside and bonded and fixed; the outer surface of the plastic outer shell 56 is provided with a waterproof film.

[0031] It should be noted that the plastic housing 56 described in this embodiment is easy to install and use, and has good use effect.

[0032] Specifically, the inner material layer 51 is thick canvas, the thermal insulation layer 52 is thermal insulation cotton, and the heat insulation layer 55 is a multi-layer composite heat insulation cloth.

[0033] In one embodiment of the present invention, Figure 2 As shown, the thermal insulation sleeve 5 also includes a heating mechanism 50, which includes an electric heating belt 53, a flame retardant layer 54, an installation box 57, an electrical terminal 58 and a wire 59, wherein the electric heating belt 53 is arranged between the thermal insulation layer 52 and the heat insulation layer 55; the flame retardant layer 54 is arranged between the electric heating belt 53 and the heat insulation layer 55; the installation box 57 is arranged on the plastic shell 56, and the electrical terminal 58 is arranged inside the installation box 57, and channels for facilitating the installation of the wire 59 are opened on the flame retardant layer 54 and the heat insulation layer 55. The wire 59 is located in the channel, one end of the wire 59 is connected to one end of the electric heating belt 53, and the other end of the wire 59 is connected to one end of the electrical terminal 58.

[0034] It should be noted that the flame retardant layer 54 and the heat insulation layer 55 described in this embodiment are bonded and fixed.

[0035] It should also be noted that the flame retardant layer 54 is rock wool, and the electric heating belt 53 is a constant temperature heating belt.

[0036] It can be understood that the installation box 57 is arranged on one side of the bottom of the thermal insulation sleeve 5 to effectively prevent rainwater from entering.

[0037] Specifically, the power terminal 58 is connected to an external power source. After the circuit is connected, the electric heating belt 53 is powered on and operates to heat the pipe body 1.

[0038] In one embodiment of the present invention, Figure 1 As shown, a hand groove 6 and a fixing groove 7 are respectively provided at positions corresponding to the surface of the plate seat 2 and the surface of the heat preservation sleeve 5 , and a through hole 9 is provided at a position corresponding to the surface of the heat preservation sleeve 5 and the gas connection end 3 .

[0039] Specifically, the hand groove 6 facilitates lifting the tube body 1 , the fixing groove 7 facilitates fixing of the fastener 8 , and the through hole 9 facilitates exposing one end of the gas connection terminal 3 .

[0040] In one embodiment of the present invention, Figure 4 As shown, the fastener 8 includes a connecting column 81, a connecting tube 82 and an elastic clamp 83, wherein one end of the connecting column 81 is located inside the connecting tube 82 and is slidably connected to the inner wall of the connecting tube 82; the elastic clamp 83 and the clamping groove are respectively provided at the positions corresponding to the positions of the inner wall of the connecting tube 82 on the surface of one end of the connecting column 81, and the elastic clamp 83 is clamped and fixed to the clamping groove.

[0041] Specifically, the fastener 8 is designed to be simple to operate, easy to connect, and ensure stable fixing force and good use effect.

[0042] To sum up, in the low-temperature antifreeze ductile iron pipe fitting of the embodiment of the utility model, the thermal insulation sleeve 5 provided in the device can effectively improve the cold resistance and antifreeze property of the pipe body 1, and a heating mechanism 50 is provided inside the device. By supplying power to the heating mechanism 50 to make it run and generate heat, the frozen liquid inside the pipe body 1 can be thawed quickly, so that the pipe body 1 can be suitable for various extreme weather conditions. The device is also provided with an air connecting end 3, through which hot air is circulated and injected into the plate seat 2, so that the frozen liquid inside the pipe body 1 can be thawed quickly, and the use effect is good.

[0043] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A low-temperature antifreeze ductile iron pipe, characterized in that: It comprises a pipe body (1), a plate seat (2), a gas connection end (3), a flange (4) and a heat-insulating sleeve (5), wherein: The plate seat (2) is arranged on the surface of the tube body (1); The gas connection end (3) is symmetrically arranged on the surface of the plate seat (2) and is connected to the interior of the plate seat (2); The flanges (4) are arranged on the surfaces of both ends of the tube body (1); The heat-insulating sleeve (5) is respectively sleeved on the surface of the tube body (1) and the surface of the plate seat (2); The heat-insulating sleeve (5) is fixedly connected to the surface of the plate seat (2) via a fastener (8).

2. The low-temperature antifreeze ductile iron pipe fitting according to claim 1, characterized in that: The thermal insulation sleeve (5) comprises an inner material layer (51), a thermal insulation layer (52), a heat insulating layer (55) and a plastic outer shell (56), wherein: The inner material layer (51), the heat-insulating layer (52), the heat-insulating layer (55) and the plastic outer shell (56) are arranged in sequence from the inside to the outside and bonded and fixed; The outer surface of the plastic housing (56) is provided with a waterproof membrane.

3. The low-temperature antifreeze ductile iron pipe fitting according to claim 2, characterized in that: The heat-insulating sleeve (5) further comprises a heating mechanism (50), wherein the heating mechanism (50) comprises an electric heating belt (53), a flame-retardant layer (54), a mounting box (57), an electrical terminal (58) and a wire (59), wherein: The electric heating belt (53) is arranged between the thermal insulation layer (52) and the heat insulating layer (55); The flame retardant layer (54) is arranged between the electric heating belt (53) and the heat insulation layer (55); The installation box (57) is arranged on the plastic housing (56), the power connection terminal (58) is arranged inside the installation box (57), the flame retardant layer (54) and the heat insulation layer (55) are provided with a channel for facilitating the installation of the wire (59), the wire (59) is located in the channel, one end of the wire (59) is connected to one end of the electric heating belt (53), and the other end of the wire (59) is connected to one end of the power connection terminal (58).

4. The low-temperature antifreeze ductile iron pipe fitting according to claim 1, characterized in that: A hand groove (6) and a fixing groove (7) are respectively provided at positions corresponding to the surface of the plate seat (2) and the surface of the heat-insulating sleeve (5), and a through hole (9) is provided at a position corresponding to the surface of the heat-insulating sleeve (5) and the gas connection end (3).

5. The low-temperature antifreeze ductile iron pipe fitting according to claim 1, characterized in that: The fastener (8) comprises a connecting column (81), a connecting tube (82) and an elastic clamp (83), wherein: One end of the connecting column (81) is located inside the connecting tube (82) and is slidably connected to the inner wall of the connecting tube (82); The elastic clamp (83) and the clamping groove are respectively provided at positions corresponding to the positions of the one end surface of the connecting column (81) and the inner wall of the connecting tube (82), and the elastic clamp (83) is clamped and fixed to the clamping groove.

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