Low-heat-loss directly-buried heat supply and heat preservation pipeline fixing joint

Abstract

The utility model discloses a low heat loss direct burial heat supply heat preservation pipeline fixing joint which comprises a pipeline, the outer side of the pipeline is in contact with two heat preservation pads which are symmetrically distributed, the two heat preservation pads are in contact with each other, the outer sides of the heat preservation pads are in contact with a connecting sleeve, the outer side of the connecting sleeve is in sliding sleeve connection with a connecting seat, and the connecting seat is in sliding sleeve connection with the connecting sleeve. The front end and the rear end of each connecting base are fixedly connected with fixing blocks, the outer sides of the fixing blocks are slidably sleeved with connecting frames, and the connecting frames make contact with the two connecting bases correspondingly. Through the design of the heat preservation pad, the connecting sleeve and the connecting base, the pipeline can be clamped and protected, the heat preservation pad can improve the heat preservation performance of the pipeline, when the pipeline expands due to the influence of the temperature, the connecting sleeve and the heat preservation pad can slide, the connecting sleeve and the heat preservation pad make elastic contact with the pipeline, and the pipeline is prevented from being damaged. And in addition, the heat preservation pad is convenient to disassemble, and the aged heat preservation pad is convenient to replace and use.

Description

Technical Field

[0001] The utility model relates to the technical field of fixed joints, in particular to a fixed joint for a low-heat-loss directly buried heating and heat-insulating pipeline. Background Art

[0002] Low-heat-loss, direct-buried, insulated heating pipes are used in heating systems. They exhibit low heat loss and are suitable for direct burial. These pipes are commonly used in urban heating systems and industrial heat distribution. During use, they require support and anchoring with fixing joints.

[0003] Patent authorization publication number CN204512807U discloses a low-heat-loss direct-buried heating pipe fixing joint. The joint comprises a heating pipe and an outer steel pipe A that fits over the pipe. The two are welded together using concentric reducers, and the space between the pipe and the outer pipe is filled with insulation material. This joint offers low heat loss, high safety, and extended service life.

[0004] In the prior art, when the fixing joint is used and clamped on the pipe, the pipe expands when heated and may be deformed by the squeezing of the fixing joint, affecting the use of the pipe. In addition, the fixing joint is not convenient to remove after installation. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of the utility model is to provide a low heat loss direct buried heating insulation pipe fixing joint, which solves the problem that the pipe may be squeezed and deformed, and also solves the problem that the fixing joint is not convenient to disassemble after installation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low heat loss direct-buried heating insulation pipe fixed joint, comprising a pipe, the outer side of the pipe is in contact with two symmetrically distributed insulation pads, the two insulation pads are in contact with each other, the outer side of the insulation pad is in contact with a connecting sleeve, the outer side of the connecting sleeve is slidably sleeved with a connecting seat, the front and rear ends of the connecting seat are fixedly connected with a fixing block, the outer side of the fixed block is slidably sleeved with a connecting frame, the connecting frame is in contact with the two connecting seats respectively, the connecting frame is provided with a connecting mechanism, and the connecting sleeve is provided with a clamping mechanism.

[0007] Preferably, the connecting mechanism includes a magnetic rod, the connecting frame is slidably sleeved with the magnetic rod, the outer side of the magnetic rod is fixedly connected to a push block, one end of the magnetic rod is fixedly connected to a guide rod, the guide rod is slidably connected to the connecting frame, a first spring is provided on the outer side of the guide rod, the connecting frame is fixedly connected with a magnet, the other end of the magnetic rod is fixedly connected to an insert block, the insert block is slidably connected to the connecting frame, and the insert block is slidably connected to the fixed block. The design of the connecting mechanism facilitates the disassembly of the connecting seat.

[0008] Preferably, one end of the first spring is fixedly connected to the magnetic rod, and the other end of the first spring is fixedly connected to the connection frame. By designing the first spring, the force of the first spring can act on the magnetic rod.

[0009] Preferably, a slot is provided inside the fixing block, and an inserting block is slidably connected inside the slot. The slot is designed so that the inserting block can slide inside the fixing block.

[0010] Preferably, the clamping mechanism includes a clamping block, the inner side of the connecting sleeve is fixedly connected to the clamping block, the outer side of the clamping block is clamped to a clamping sleeve, the clamping sleeve is fixedly connected to the thermal insulation pad, the top of the connecting sleeve is fixedly connected to two symmetrically distributed guide rods, the guide rods are slidably connected to the connecting seat, the top of the guide rods is fixedly connected to a guide block, the guide block is slidably connected to the connecting seat, and a second spring is provided on the outer side of the guide rods. By designing the clamping mechanism, the pipe can be clamped and fixed.

[0011] Preferably, a card slot is provided inside the sleeve, and a card block is connected inside the card slot. By designing the connection between the card slot and the card block, the thermal insulation pad can be fixed.

[0012] Preferably, one end of the second spring is fixedly connected to the guide block, and the other end of the second spring is fixedly connected to the connecting seat. By designing the second spring, the force of the second spring can act on the guide block.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model can play a clamping and protective effect on the pipeline by designing the insulation pad, connecting sleeve and connecting seat, and the insulation pad can improve the thermal insulation performance of the pipeline. When the pipeline expands due to temperature, the connecting sleeve and the insulation pad can slide. The connecting sleeve and the insulation pad are in elastic contact with the pipeline, which can avoid the pipeline from being squeezed and deformed after expansion. The insulation pad is easy to disassemble, which is convenient for replacing aging insulation pads.

[0015] 2. The utility model can preliminarily position the two connecting seats by designing the socket connection between the connecting frame and the fixed block. At the same time, by plugging the plug-in block into the internal slot of the fixed block, the connection and fixation of the connecting frame and the fixed block can be realized, thereby achieving the purpose of combining and fixing the two connecting seats. The plug-in block and the slot can be separated by pushing the push block, which is convenient for disassembling the connecting frame and the fixed block and facilitating the disassembly and use of the fixed section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure of the connection frame;

[0018] Figure 3 For this utility model Figure 2 A magnified view of point A;

[0019] Figure 4 For this utility model Figure 1 The right side cross-sectional view of the connecting seat;

[0020] Figure 5 For this utility model Figure 4 Enlarged view of point B.

[0021] In the figure: 1. Pipe; 2. Insulation pad; 3. Connecting sleeve; 4. Connecting seat; 5. Fixing block; 6. Connecting frame; 8. Connecting mechanism; 9. Clamping mechanism; 81. Magnetic rod; 82. Push block; 83. Guide rod; 84. First spring; 85. Insert block; 86. Slot; 87. Magnet; 91. Card block; 92. Card sleeve; 93. Card slot; 94. Guide rod; 95. Guide block; 96. Second spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 、 Figure 2 、 Figure 4A low heat loss direct-buried heating insulation pipe fixed joint includes a pipe 1. The outer side of the pipe 1 is in contact with two symmetrically distributed insulation pads 2. The two insulation pads 2 are in contact with each other. The outer sides of the insulation pads 2 are in contact with a connecting sleeve 3. The outer side of the connecting sleeve 3 is slidably sleeved with a connecting seat 4. The front and rear ends of the connecting seat 4 are fixedly connected with a fixing block 5. The outer side of the fixed block 5 is slidably sleeved with a connecting frame 6. The connecting frame 6 is in contact with the two connecting seats 4 respectively. A connecting mechanism 8 is provided on the connecting frame 6, and a clamping mechanism 9 is provided on the connecting sleeve 3.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 The outer side of the guide rod 83 is fixedly connected to the guide rod 83, and the guide rod 83 is slidably connected to the connecting frame 6. A first spring 84 is provided on the outer side of the guide rod 83, and one end of the first spring 84 is fixedly connected to the magnetic rod 81, and the other end of the first spring 84 is fixedly connected to the connecting frame 6. By designing the first spring 84, the force of the first spring 84 can act on the magnetic rod 81, and the interior of the connecting frame 6 is fixedly connected with a magnet 87. The other end of the magnetic rod 81 is fixedly connected to an insert block 85, which is slidably connected to the connecting frame 6 and the insert block 85 is slidably connected to the fixed block 5. A slot 86 is provided inside the fixed block 5, and the insert block 85 is slidably connected to the internal of the slot 86. By designing the slot 86, the insert block 85 can slide inside the fixed block 5. By designing the connecting mechanism 8, it is convenient to disassemble the connecting seat 4.

[0025] See also Figure 1 、 Figure 4 、 Figure 5 The clamping mechanism 9 includes a card block 91, the inner side of the connecting sleeve 3 is fixedly connected to the card block 91, the outer side of the card block 91 is clamped with a card sleeve 92, the interior of the card sleeve 92 is provided with a card slot 93, the interior of the card slot 93 is clamped with the card block 91, and the insulation pad 2 can be fixed by designing the card slot 93 and the card block 91. The card sleeve 92 is fixedly connected to the insulation pad 2. The top of the connecting sleeve 3 is fixedly connected to two symmetrically distributed guide rods 94, which are slidably connected to the connecting seat 4. The top of the guide rod 94 is fixedly connected with a guide block 95, which is slidably connected to the connecting seat 4. A second spring 96 is provided on the outer side of the guide rod 94, one end of the second spring 96 is fixedly connected to the guide block 95, and the other end of the second spring 96 is fixedly connected to the connecting seat 4. By designing the second spring 96, the force of the second spring 96 can act on the guide block 95. By designing the clamping mechanism 9, the pipe 1 can be clamped and fixed.

[0026] The specific implementation process of the present invention is as follows: through the functions of the thermal insulation pad 2, the connecting sleeve 3 and the connecting seat 4, the pipe 1 can be clamped and protected, and the thermal insulation pad 2 can improve the thermal insulation performance of the pipe 1. When the pipe 1 expands due to heat, the pipe 1 will drive the thermal insulation pad 2 and the connecting sleeve 3 to move, and the connecting sleeve 3 will drive the guide rod 94 and the guide block 95 to slide along the connecting seat 4, and the guide block 95 will squeeze the second spring 96. Under the elastic action of the second spring 96, the thermal insulation pad 2 and the pipe 1 can always be kept in close contact, avoiding affecting the thermal insulation effect and preventing the pipe 1 from being squeezed and deformed after expansion. In addition, the thermal insulation pad 2 and the connecting sleeve 3 can be fixed under the clamping connection of the clamping block 91 and the clamping sleeve 92, making it easy to replace and reuse the aging thermal insulation pad 2.

[0027] When it is necessary to disassemble the connecting seat 4, the push block 82 is directly pushed. The push block 82 drives the magnetic rod 81 to move horizontally, and the magnetic rod 81 drives the guide rod 83 to move. At the same time, the magnetic rod 81 squeezes the first spring 84, and the magnetic rod 81 is adsorbed on the magnet 87. At this time, the magnetic rod 81 will drive the insertion block 85 to move and slide out from the inside of the slot 86. Then, the connecting frame 6 can be removed from the fixed block 5 by moving horizontally, which is convenient for disassembly and use of the fixed section.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low heat loss direct buried heat supply and insulation pipe fixed joint, comprising a pipe (1), characterized in that: The outer side of the pipe (1) is in contact with two symmetrically distributed insulation pads (2), the two insulation pads (2) are in contact with each other, the outer side of the insulation pad (2) is in contact with a connecting sleeve (3), the outer side of the connecting sleeve (3) is slidably sleeved with a connecting seat (4), the front and rear ends of the connecting seat (4) are fixedly connected with a fixing block (5), the outer side of the fixing block (5) is slidably sleeved with a connecting frame (6), the connecting frame (6) is in contact with the two connecting seats (4) respectively, the connecting frame (6) is provided with a connecting mechanism (8), and the connecting sleeve (3) is provided with a clamping mechanism (9).

2. The low heat loss direct buried heating and insulation pipe fixing joint according to claim 1 is characterized by: The connecting mechanism (8) includes a magnetic rod (81), the magnetic rod (81) is slidably sleeved inside the connecting frame (6), a push block (82) is fixedly connected to the outside of the magnetic rod (81), one end of the magnetic rod (81) is fixedly connected to a guide rod (83), the guide rod (83) is slidably connected to the connecting frame (6), a first spring (84) is provided on the outside of the guide rod (83), a magnet (87) is fixedly connected inside the connecting frame (6), the other end of the magnetic rod (81) is fixedly connected to an insert block (85), the insert block (85) is slidably connected to the connecting frame (6), and the insert block (85) is slidably connected to the fixed block (5).

3. The low heat loss direct buried heat supply and insulation pipe fixing joint according to claim 2 is characterized by: One end of the first spring (84) is fixedly connected to the magnetic rod (81), and the other end of the first spring (84) is fixedly connected to the connection frame (6).

4. The low heat loss direct buried heat supply and insulation pipe fixing joint according to claim 1 is characterized in that: A slot (86) is provided inside the fixed block (5), and an inserting block (85) is slidably connected inside the slot (86).

5. The low heat loss direct buried heat supply and insulation pipe fixing joint according to claim 1 is characterized in that: The clamping mechanism (9) includes a clamping block (91), the inner side of the connecting sleeve (3) is fixedly connected to the clamping block (91), the outer side of the clamping block (91) is clamped to a clamping sleeve (92), the clamping sleeve (92) is fixedly connected to the thermal insulation pad (2), the top of the connecting sleeve (3) is fixedly connected to two symmetrically distributed guide rods (94), the guide rods (94) are slidably connected to the connecting seat (4), the top of the guide rod (94) is fixedly connected to a guide block (95), the guide block (95) is slidably connected to the connecting seat (4), and a second spring (96) is provided on the outer side of the guide rod (94).

6. The low heat loss direct buried heat supply and insulation pipe fixing joint according to claim 5 is characterized by: A card slot (93) is provided inside the card sleeve (92), and a card block (91) is connected inside the card slot (93).

7. The low heat loss direct buried heat supply and insulation pipe fixing joint according to claim 5 is characterized by: One end of the second spring (96) is fixedly connected to the guide block (95), and the other end of the second spring (96) is fixedly connected to the connecting seat (4).

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