Heat-proof bridge connecting structure with reinforcing steel bar when pipeline is embedded in floor slab

Abstract

The utility model relates to the field of green building structures, in particular to a heat-proof bridge connecting structure of a floor slab and a reinforcing steel bar when a pipeline is embedded in the floor slab, which comprises a mounting strip, a mounting block and a heat insulation block, the mounting strip is fixed on the outer side of a shell of the embedded pipeline, the mounting block is detachably connected with the mounting strip before concrete is poured, and the heat insulation block is embedded in the mounting block. The load-bearing steel bars are connected with the heat insulation blocks. According to the heat-proof bridge connecting structure with the reinforcing steel bars when the pipelines are embedded in the floor, the heat insulation blocks are arranged to block a heat transfer channel between the reinforcing steel bars and the pipelines embedded in the floor, so that the influence of cold and hot circulation on the reinforcing steel bars and the pipelines in the floor is reduced, and the problems of mildewing and condensation at the junctions of the stressed reinforcing steel bars and concrete are solved. And meanwhile, the detachable mounting blocks and mounting strips are used for conveniently adapting to adjustment of the load-bearing steel bars at different intervals, and the application flexibility of the connecting structure can be improved.

Description

Technical Field

[0001] The utility model relates to the field of green building structures, in particular to a heat-bridge-proof connection structure for a pipeline embedded in a floor slab and a steel bar. Background Art

[0002] In recent years, the functional requirements of buildings have become more and more, and equipment pipelines have been buried in the concrete floor, and the pipeline extension direction runs through the entire thickness of the concrete floor. At this time, in order to ensure the mechanical integrity of the concrete floor, it is necessary to weld the stress-bearing steel bars in the concrete floor to the outside of the equipment pipeline (such as Figure 1 shown).

[0003] However, when the equipment pipeline is in use, there will often be hot and cold air circulation, and the way the steel bars are directly welded to the steel pipes will cause the heat flow to be directly conducted along the junction of the steel pipe and the steel bars to the interface between the steel bars and the concrete, which will cause a thermal bridge phenomenon. As the service life of the pipeline increases, the area where the stressed steel bars connect to the pipeline is easily affected by the hot and cold cycles, causing mold and rust at the junction of the stressed steel bars and concrete, which is not conducive to the insulation of the building structure and will also reduce the living experience of the building. Utility Model Content

[0004] Aiming at the problem in the prior art that equipment pipelines are affected by hot and cold cycles, causing mildew and condensation at the junction of stressed steel bars and concrete, the utility model provides a heat bridge-proof connection structure between pipelines buried in floor slabs and steel bars.

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

[0006] A heat-bridge-proof connection structure for buried pipes in a floor slab and steel bars, comprising a mounting strip, a mounting block and a heat-insulating block. The mounting strip is fixed to the outer side of the outer shell of the buried pipe. Before concrete is poured, the mounting block and the mounting strip are detachably connected. The heat-insulating block is embedded in the mounting block, and the stressed steel bars are connected to the heat-insulating block.

[0007] Preferably, the mounting bar is provided with interconnected mounting grooves and matching grooves, and the matching grooves match with the mounting blocks.

[0008] Preferably, the mounting block comprises a connecting block and a matching block which are fixedly connected, the matching groove is connected to the matching block, and the connecting block is located in the mounting groove.

[0009] Preferably, the side wall of the matching groove is provided with matching teeth, and the matching block is provided with engaging teeth, and the matching teeth and the engaging teeth are engaged with each other.

[0010] Preferably, the sum of the thicknesses of the connecting block and the matching block is less than the depth of the installation groove, and the opening width of the matching groove is greater than the diameter of the stressed steel bar.

[0011] Preferably, the insulation block includes a steel bar fixing block and an insulation flexible block, the ends of the stressed steel bars are connected to the steel bar fixing block, the steel bar fixing block is embedded in the insulation flexible block, and the insulation flexible block is embedded in the connecting block and the matching block.

[0012] Preferably, the steel bar fixing block and the heat insulating flexible block are both in the shape of a frustum and have a polygonal cross section.

[0013] Preferably, the bottom plane of the steel bar fixing block is flush with the surface of the matching block, and the cross-sectional area of ​​the steel bar fixing block gradually increases from a side close to the surface of the matching block to a side away from the surface.

[0014] Preferably, the bottom plane of the thermal insulation flexible block is flush with the surface of the matching block, and the other end is embedded in the connecting block.

[0015] Preferably, a sealing plate is provided on the top of the thermal insulation flexible block, and the sealing plate is embedded in the connecting block.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a heat bridge prevention connection structure for a pipe embedded in a floor slab and a steel bar, which blocks the heat transfer channel between the stressed steel bar and the buried pipe in the floor slab by setting a heat insulation block, thereby reducing the influence of the cold and hot cycle on the stressed steel bar and the buried pipe in the floor slab, thereby solving the problem of mildew, rust and condensation at the junction of the stressed steel bar and the concrete at the connection pipe. At the same time, the detachable installation block and installation strip are designed to facilitate the adjustment of stressed steel bars with different spacings, which helps to improve the applicability flexibility of the connection structure.

[0018] Furthermore, the cooperation between the matching teeth and the engaging teeth can realize the connection between the matching block and the matching groove, thereby realizing the connection between the mounting block and the mounting strip.

[0019] Furthermore, the thickness of the connecting block and the matching block is smaller than the depth of the mounting groove in order to facilitate adjustment of the position of the mounting block.

[0020] Furthermore, the steel bar fixing block is used to connect the stressed steel bars, and the polygonal steel bar fixing block can prevent the stressed steel bar fixing block from rotating, which helps to enhance the stability of the stressed steel bars.

[0021] Furthermore, the blocking plate is used to ensure the installation of the thermal insulation flexible pad and prevent the thermal insulation flexible pad from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of conventional steel bars and pipes;

[0023] Figure 2This is a schematic diagram of a heat-resistant bridge connection structure between a pipe embedded in a floor slab and a steel bar according to the utility model;

[0024] Figure 3 This is a front view of a heat-bridge-proof connection structure between a pipe buried in a floor slab and a steel bar according to the utility model;

[0025] Figure 4 It is a side view of a heat-bridge-proof connection structure between a pipe buried in a floor slab and a steel bar according to the utility model;

[0026] Figure 5 It is an assembly diagram of steel bars and heat insulation blocks in a heat bridge prevention connection structure with steel bars when pipes are buried in a floor slab according to the utility model;

[0027] Figure 6 The utility model discloses an assembly diagram of steel bars, heat insulation blocks and mounting blocks in a heat bridge prevention connection structure between steel bars and a pipeline buried in a floor slab.

[0028] In the figure, 1. buried pipe; 2. installation strip; 3. stress-bearing steel bar; 4. connection block; 5. matching block; 6. installation groove; 7. steel bar fixing block; 8. thermal insulation flexible block; 9. sealing plate. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0030] The utility model discloses a heat-proof bridge connection structure for a pipeline buried in a floor slab and a steel bar, referring to Figure 2 , including a mounting strip 2, a mounting block and an insulating block. The mounting strip 2 is fixed to the outer side of the outer shell of the buried pipe 1 by welding. The mounting block and the mounting strip 2 can be detachably connected before pouring concrete. The insulating block is embedded in the mounting block, and the stressed steel bar 3 is connected to the insulating block.

[0031] Among them, a connecting installation groove 6 and a matching groove are formed between the installation strip 2 and the outer shell of the buried pipe 1, and the matching groove matches with the installation block; the installation block includes a fixedly connected connection block 4 and a matching block 5, the matching groove is connected with the matching block 5, and the connection block 4 is located in the installation groove 6. Matching teeth are provided on the side wall of the matching groove, and the matching block 5 is provided with interlocking teeth, and the matching teeth and the interlocking teeth are interlockingly matched. In this embodiment, the installation strip 2 is composed of two steel materials with L-shaped cross-sections arranged oppositely, and the installation groove 6 is formed between the long limbs thereof, and the matching groove is formed between the short limbs. The interlocking teeth are double-tooth settings, which can ensure that the stressed steel bar 3 cooperates with the installation block to achieve millimeter-level precise installation and positioning in the installation groove 6, and at the same time can prevent the installation block from loosening after installation.

[0032] In order to facilitate personnel to install the mounting block, the mounting groove 6 and the matching groove are long through grooves opened along the length axis of the mounting bar 2.

[0033] In order to facilitate the installation of the stressed steel bar 3 in the installation groove 6 and accurately adjust the position of the stressed steel bar 3, the sum of the thickness of the connecting block 4 and the matching block 5 in this embodiment is less than the depth of the installation groove 6, and the opening width of the matching groove is greater than the diameter of the stressed steel bar 3, so as to facilitate the adjustment of the stressed steel bar 3. When adjusting, the connecting block 4 and the matching block 5 are pushed into the installation groove 6 at the same time, and then the matching block 5 is pulled to a suitable position by the stressed steel bar 3, and the stressed steel bar 3 is pulled and rotated so that the matching teeth of the matching block 5 are matched with the interlocking teeth at the new position on the installation bar 2, thereby realizing the locking of the new position.

[0034] The heat-insulating block includes a steel bar fixing block 7 and a heat-insulating flexible block 8. The end of the stressed steel bar 3 is threadedly connected to the steel bar fixing block 7. The hole in the steel bar fixing block 7 is provided with a thread. The steel bar fixing block 7 is embedded in the heat-insulating flexible block 8. The heat-insulating flexible block 8 is embedded in the connecting block 4 and the matching block 5, that is, the connecting block 4 and the matching block 5 are provided with grooves that match the heat-insulating flexible block 8. The steel bar fixing block 7 and the heat-insulating flexible block 8 are both in the shape of a cone and have a polygonal cross section. In this embodiment, the heat-insulating flexible block 8 is made of rubber material, and the cross sections of the steel bar fixing block 7 and the heat-insulating block are quadrilaterals, which can prevent the stressed steel bar fixing block 7 from rotating and help to enhance the connection stability of the stressed steel bar 3.

[0035] In order to facilitate installation, the bottom plane of the steel bar fixing block 7 is flush with the surface of the matching block 5, and the cross-sectional area of ​​the steel bar fixing block 7 gradually increases from the side close to the surface of the matching block 5 to the side away from it, in order to ensure that the end of the stressed steel bar 3 connected to the mounting block will not fall out of the mounting block under stress after pouring concrete. The bottom plane of the thermal insulation flexible block 8 is flush with the surface of the matching block 5, and the other end is embedded in the connection block 4. When the matching teeth and the interlocking teeth are in the locked state, the height of the connection block 4 is greater than the opening width of the matching groove, in order to prevent the stressed steel bar 3 from pulling the mounting block out of the mounting groove 6 due to stress after pouring concrete.

[0036] A sealing plate 9 is provided on the top of the thermal insulation flexible block 8 , and the sealing plate 9 is embedded in the connecting block 4 . The sealing plate 9 can prevent the thermal insulation flexible block 8 from falling off, and ensure that the thermal insulation block is stably connected in the connecting block 4 .

[0037] The installation process of the heat bridge prevention connection structure between the pipeline buried in the floor slab and the steel bar is as follows:

[0038] S1, using external force to embed the steel bar fixing block 7 into the thermal insulation flexible block 8 to form a thermal insulation block;

[0039] S2, insert the heat insulation block from one end of the mounting block close to the connecting block 4, and fix the sealing plate 9 to the mounting block by welding, so that the heat insulation block is fixed in the mounting block to form a standby assembly block;

[0040] S3, threading the stressed steel bar 3 and the steel bar fixing block 7 in the standby assembly block to form a component to be installed;

[0041] S4, fix the installation bar 2 to the outside of the buried pipe 1 by welding, and then push the component to be installed into the installation groove 6 of the installation bar 2. When it is pushed to the specified position according to the engineering requirements, pull and rotate the stressed steel bar 3 so that the matching teeth on the matching groove are matched with the engaging teeth on the matching block 5, so as to achieve the fitting of the installation block and the installation bar 2;

[0042] S5, fill the space between the end face of the connecting block 4 away from the stressed steel bar 3 and the outer side of the buried pipe 1 with wood or rubber strips to prevent the mating teeth on the mating groove and the engaging teeth on the mating block 5 from loosening due to the later pouring of concrete.

[0043] Meanwhile, in the above S3 , threads may be firstly made on the outer surface of the stressed steel bar 3 using a mechanical lathe, and then the stressed steel bar 3 and the steel bar fixing block 7 are threadedly connected.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and replacements, and these modifications and replacements are also within the scope of protection covered by the claims.

Claims

1. A heat-bridge-proof connection structure between a pipe buried in a floor slab and a steel bar, characterized in that: It comprises a mounting strip (2), a mounting block and a heat insulating block. The mounting strip (2) is fixed to the outer side of the outer shell of the buried pipe (1). Before the concrete is poured, the mounting block and the mounting strip (2) are detachably connected. The heat insulating block is embedded in the mounting block. The stress-bearing steel bar (3) is connected to the heat insulating block.

2. The heat-bridge-proof connection structure between the buried pipe and the steel bar in the floor slab according to claim 1, characterized in that: The mounting strip (2) is provided with a communicating mounting groove (6) and a matching groove, and the matching groove matches with the mounting block.

3. The heat bridge preventing connection structure between the buried pipe and the steel bar in the floor slab according to claim 2, characterized in that: The mounting block comprises a connection block (4) and a matching block (5) which are fixedly connected, the matching groove is connected to the matching block (5), and the connection block (4) is located in the mounting groove (6).

4. The heat-bridge-proof connection structure between the buried pipe and the steel bar in the floor slab according to claim 3, characterized in that: The side wall of the matching groove is provided with matching teeth, and the matching block (5) is provided with engaging teeth, and the matching teeth and the engaging teeth are engaged with each other.

5. The heat-bridge-proof connection structure between the buried pipe and the steel bar in the floor slab according to claim 3, characterized in that: The sum of the thicknesses of the connecting block (4) and the matching block (5) is less than the depth of the installation groove (6), and the opening width of the matching groove is greater than the diameter of the stressed steel bar (3).

6. The heat-bridge-proof connection structure between the buried pipe and the steel bar in the floor slab according to claim 3, characterized in that: The heat-insulating block comprises a steel bar fixing block (7) and a heat-insulating flexible block (8); the end of the stressed steel bar (3) is connected to the steel bar fixing block (7); the steel bar fixing block (7) is embedded in the heat-insulating flexible block (8); and the heat-insulating flexible block (8) is embedded in the connecting block (4) and the matching block (5).

7. The heat bridge preventing connection structure between the buried pipe and the steel bar in the floor slab according to claim 6, characterized in that: The steel bar fixing block (7) and the heat insulating flexible block (8) are both in the shape of a frustum and have a polygonal cross section.

8. The heat-bridge-proof connection structure between the buried pipe and the steel bar in the floor slab according to claim 7, characterized in that: The bottom plane of the steel bar fixing block (7) is flush with the surface of the matching block (5), and the cross-sectional area of ​​the steel bar fixing block (7) gradually increases from the side close to the surface of the matching block (5) to the side away from it.

9. The heat-bridge-proof connection structure between the buried pipe and the steel bar in the floor slab according to claim 6, characterized in that: The bottom plane of the heat-insulating flexible block (8) is flush with the surface of the matching block (5), and the other end is embedded in the connecting block (4).

10. The heat bridge preventing connection structure between the buried pipe and the steel bar in the floor slab according to claim 9, characterized in that: A sealing plate (9) is provided on the top of the heat-insulating flexible block (8), and the sealing plate (9) is embedded in the connecting block (4).

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