A built-in thermal insulation system embedded line pipe fixing device for cast-in-place concrete

Abstract

The utility model provides a cast-in-place concrete built-in heat preservation system pre -buried line pipe fixing device, including first card piece, second card piece and adjusting assembly, wherein, first card piece includes four card mouth, and card mouth is suitable for with anti -crack mesh piece joint, second card piece includes clamping groove, and the direction of clamping groove is opposite with card mouth, is suitable for with pre -buried line pipe joint, adjusting assembly one end rotation connection is in the one end of first card piece far away from card mouth, and the other end is with second card piece far away from clamping groove one end swing joint, is used for adjusting the position and axial direction of clamping groove, and card mouth and clamping groove between have set distance, the utility model discloses through setting first card piece and pit crack mesh piece joint, second card piece and pre -buried line pipe joint, has realized pre -buried line pipe and the reliable connection of anti -crack mesh piece, through the distance between card mouth and clamping groove, has guaranteed the depth of pre -buried line pipe's burying, has avoided the concrete cracking of pre -buried line pipe position, has guaranteed the construction quality of concrete.

Description

Technical Field

[0001] This utility model belongs to the field of conduit installation technology, and in particular relates to a pre-embedded conduit fixing device for a cast-in-place concrete built-in insulation system. Background Technology

[0002] The cast-in-place concrete built-in insulation system, consisting of a polystyrene board in the middle and concrete surfaces on both the inner and outer sides, is increasingly used in building energy conservation due to its advantages such as good insulation, high fire resistance, good durability, and high safety. During construction, the embedded conduit needs to be pre-embedded between the insulation board and the system's built-in crack-resistant mesh. However, since the built-in insulation board infill wall system lacks shear wall reinforcement, the current construction method involves binding the embedded conduit to the crack-resistant mesh with wire. Because the crack-resistant mesh is only 5mm from the outer edge of the concrete, the embedded depth of the conduit is insufficient, easily causing cracks on the concrete surface and affecting the appearance of the concrete. If spacers are used to control the distance between the embedded conduit and the crack-resistant mesh, the spacers are prone to loosening and falling off during pouring, making it impossible to reliably control the embedded depth of the conduit. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a fixing device for pre-embedded conduits in cast-in-place concrete built-in insulation systems, which ensures the embedding depth of the pre-embedded conduits, avoids concrete cracking at the location of the pre-embedded conduits, and ensures the construction quality of the concrete.

[0004] The technical solution adopted in this utility model is: a fixing device for pre-embedded conduits in a cast-in-place concrete built-in insulation system.

[0005] The first fastener includes four slots, which are adapted to engage with the crack-resistant mesh.

[0006] The second clamping component includes a clamping groove, which faces opposite to the bayonet opening and is suitable for engaging with a pre-embedded conduit.

[0007] An adjustment component is rotatably connected at one end to the end of the first card that is away from the bayonet opening, and movably connected at the other end to the end of the second card that is away from the clamping groove, for adjusting the position and axial direction of the clamping groove;

[0008] There is a set distance between the bayonet and the clamping slot.

[0009] Furthermore, the first card is a cavity structure with an opening at one end, and the slots are evenly and circumferentially arranged at one end of the opening.

[0010] Furthermore, the bayonet includes an insertion port and a rotating port. The insertion port is arranged along the opening direction, and the rotating port is connected to the end of the insertion port and arranged in the same direction along the same circumference.

[0011] Furthermore, the adjustment assembly includes a first adjustment member, which includes a connecting plate and a rotating shaft. The two ends of the rotating shaft are rotatably connected to the first locking member and the connecting plate, respectively. The connecting plate is connected to a first limiting pin for abutting against the rotating shaft.

[0012] Furthermore, the connecting plate is provided with a connecting block, and the first limiting pin is threadedly connected to the connecting block; the rotating shaft is also provided with a limiting groove suitable for the insertion of the limiting pin.

[0013] Furthermore, the adjustment assembly also includes a second adjustment member connected to the first adjustment member. The second adjustment member has a slot on the side facing away from the first adjustment member, and the second adjustment member is slidably engaged in the slot.

[0014] Furthermore, the card slot includes a horizontal card slot and a vertical card slot connected vertically, and the card slot has an opening, the width of which is smaller than the width of the card slot body.

[0015] Furthermore, the second card has a slider on the side facing away from the clamping groove. The slider is adapted to the card groove and is connected to a second limiting pin for abutting against the card groove.

[0016] Furthermore, the inner wall of the clamping groove is an arc-shaped surface with a notch, forming a receiving space suitable for accommodating more than half of the cross-sectional area of ​​the pre-embedded conduit.

[0017] The method of using the pre-embedded conduit fixing device for the cast-in-place concrete built-in insulation system as described above includes the following steps:

[0018] Complete the installation of insulation boards and crack-resistant mesh;

[0019] Align the slot of the first clip with the reinforcing bar of the crack-resistant mesh, press and then rotate;

[0020] The axial direction of the clamping groove on the second card is adjusted by the first adjusting member and fixed by the first limiting pin;

[0021] The second card is moved along the slot on the second adjusting member and fixed by the second limiting pin;

[0022] Insert the pre-embedded conduit into the clamping groove;

[0023] Erect concrete formwork and pour concrete.

[0024] The advantages and positive effects of this utility model are:

[0025] (1) This application achieves a reliable connection between the pre-embedded conduit and the crack-resistant mesh by setting the first clip to be connected to the crack-resistant mesh and the second clip to be connected to the pre-embedded conduit. By controlling the distance between the clip and the clamping groove, the pre-embedded conduit and the concrete surface have a set distance, which ensures the embedding depth of the pre-embedded conduit, avoids the cracking of the concrete at the location of the pre-embedded conduit, and ensures the construction quality of the concrete.

[0026] (2) By setting the first adjusting component, the axial direction of the clamping groove can be adjusted as needed, ensuring the accurate routing of the pre-embedded conduit; by setting the second adjusting component, the position of the clamping groove can be adjusted as needed, ensuring that the position of the pre-embedded conduit meets the design requirements and ensuring the accuracy of the installation position of the pre-embedded conduit.

[0027] (3) The overall structure is simple, easy to operate, and reliable in connection, which avoids the movement of the pre-embedded conduit during concrete pouring and further ensures the construction quality. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of a specific embodiment of the present invention;

[0029] Figure 2 This is a two-dimensional structural schematic diagram of a specific embodiment of the present invention;

[0030] Figure 3 This is a bottom view schematic diagram of a specific embodiment of the present invention.

[0031] In the picture:

[0032] 1. First locking component; 11. Bayonet; 111. Insertion port; 112. Rotation port; 2. Adjustment assembly; 21. First adjusting component; 211. Connecting plate; 212. Rotating shaft; 213. First limiting pin; 22. Second adjusting component; 221. Slot; 3. Second locking component; 31. Clamping groove; 32. Slider; 33. Second limiting pin. Detailed Implementation

[0033] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0034] like Figure 1 , Figure 2 , Figure 3As shown in the figure, this utility model embodiment proposes a fixing device for pre-embedded conduits in a cast-in-place concrete built-in insulation system, including a first clamp 1, a second clamp 3, and an adjustment component 2. The first clamp 1 includes four slots 11, which are adapted to engage with crack-resistant mesh. The second clamp 3 includes a clamping groove 31, which faces opposite to the slots 11 and is adapted to engage with the pre-embedded conduit. One end of the adjustment component 2 is rotatably connected to the end of the first clamp 1 away from the slots 11, and the other end is movably connected to the end of the second clamp 3 away from the clamping groove 31, for adjusting the position and axial direction of the clamping groove 31. There is a set distance between the slots 11 and the clamping groove 31. In this application, the cast-in-place concrete built-in insulation system includes an insulation board and cast-in-place concrete structures on both sides of the insulation board. The cast-in-place concrete structures contain crack-resistant mesh. The insulation board and crack-resistant mesh are pre-constructed, and the embedded conduit needs to be installed between the insulation board and the crack-resistant mesh before concrete pouring. In existing technology, the embedded conduit is tied to the crack-resistant mesh with wire. However, because the distance between the crack-resistant mesh and the repressurized soil surface on the other side is very small, the embedment depth of the embedded conduit is difficult to meet the requirements. If spacers are used to control the distance between the embedded conduit and the crack-resistant mesh, the spacers are prone to loosening and falling off during pouring, making it impossible to reliably control the embedment depth of the embedded conduit. The operation is simple: the first clip 1 engages with the crack-resistant mesh, and the second clip 3 engages with the embedded conduit. This ensures a reliable connection between the embedded conduit and the crack-resistant mesh. The embedded conduit is clamped in the clamping groove 31, with the axis of the clamping groove 31 corresponding to the direction of the embedded conduit. By setting the adjustment component 2, the position and direction of the embedded conduit can be adjusted, ensuring accurate positioning. Since the crack-resistant mesh is clamped at the slot 11, the distance between the slot 11 and the clamping groove 31 is controlled to ensure a set gap between the embedded conduit and the concrete surface. This ensures the embedment depth of the embedded conduit, prevents concrete cracking at the location of the embedded conduit, and ensures the construction quality of the concrete.

[0035] In this embodiment, the first clamp 1 is a cavity structure with one end open, and the clamps 11 are evenly arranged circumferentially at one end of the opening. Specifically, the crack-resistant mesh includes several crisscrossing transverse and longitudinal reinforcing bars. The first clamp 1 is set at the intersection of the transverse and longitudinal reinforcing bars, and each clamp 11 is engaged with one reinforcing bar around the intersection. By engaging the four reinforcing bars around the intersection with the four clamps 11, the entire device can be fixed at the intersection of the reinforcing bars. By evenly arranging the clamps 11 circumferentially, it is beneficial to improve the balance of force on the device. By setting the first clamp 1 as a cavity structure, it can enter the cavity structure during concrete pouring, which helps to achieve full contact between the device and the concrete and make full use of the bonding stress of the concrete to form a more reliable connection.

[0036] Specifically, the aforementioned slot 11 includes an insertion port 111 and a rotating port 112. The insertion port 111 is arranged along the opening direction, and the rotating port 112 is connected to the end of the insertion port 111 and arranged in the same direction along the same circumference. The insertion port 111 is a notch opened on the end face of the opening end of the first clamp 1. The size of the insertion port 111 and the rotating port 112 are uniform and adapted to the diameter of the steel bars of the crack-resistant mesh, allowing the steel bars to enter the depth of the insertion port 111. Then, by rotating the first clamp 1, the steel bars can enter the rotating port 112. Since the crack-resistant mesh is arranged vertically, during use, the insertion port 111 is horizontal and perpendicular to the steel bars. After the steel bars are inserted and rotated, they enter the depth of the rotating port 112. The side wall of the insertion port 111 forms a shield against the rotating port 112, which can effectively prevent the first clamp 1 from falling off, achieving a convenient, efficient, and stable connection between the first clamp 1 and the crack-resistant mesh.

[0037] In the above embodiments, the cross-section of the first card 1 can be set as square, and the slots 11 are evenly arranged in the middle of the four sides of the opening end of the first card 1; or it can be set as circular, and the slots 11 are evenly arranged around the opening end of the first card 1.

[0038] The adjustment assembly 2 includes a first adjustment member 21, which includes a connecting plate 211 and a rotating shaft 212. The two ends of the rotating shaft 212 are rotatably connected to the first clamping member 1 and the connecting plate 211, respectively. The connecting plate 211 is connected to a first limiting pin 213 for abutting against the rotating shaft 212. The first adjustment member 21 is used to adjust the axial direction of the clamping groove 31 so that the wire clamped therein is accurately oriented. The first limiting pin 213 is used to limit the rotating shaft 212. When the rotating shaft 212 drives the first adjustment member 21 to rotate to a set angle, the first limiting pin 213 can stop the rotating shaft 212 from continuing to rotate, so that the axial direction of the clamping groove 31 is maintained in the set direction.

[0039] In one specific embodiment, the connecting plate 211 is provided with a connecting block, and the first limiting pin 213 is threadedly connected to the connecting block; the rotating shaft 212 is also provided with a limiting groove suitable for the insertion of the first limiting pin 213. The width of the limiting groove is adapted to the diameter of the first limiting pin 213, and a ring is provided around the circumference of the rotating shaft 212 at a set height; the connecting block is provided with a threaded hole at a corresponding height, and the first limiting pin 213 is disposed in the threaded hole; by screwing the first limiting pin 213, one end of it can be inserted into the limiting groove and pressed against the limiting groove, thereby limiting the rotating shaft 212; preferably, multiple first limiting pins 213 and connecting blocks are provided correspondingly, together forming an effective limiting of the rotating shaft 212.

[0040] Furthermore, the adjustment assembly 2 also includes a second adjustment component 22 connected to the first adjustment component 21. The second adjustment component 22 has a slot 221 on the side facing away from the first adjustment component 21, and the second locking component 3 is slidably engaged with the slot 221. The second adjustment component 22 is used to adjust the position of the clamping slot 31. Typically, the mesh size of the crack-resistant mesh is 4cm×4cm. When there is a deviation between the design position of the pre-embedded conduit and the intersection of the reinforcing bars, the position of the clamping slot 31 can be adjusted by moving the second opening along the slot 221, thereby ensuring the accurate position of the pre-embedded conduit.

[0041] In one specific embodiment, the slot 221 includes a horizontal slot 221 and a vertical slot 221 connected vertically. The slot 221 has an opening, the width of which is smaller than the width of the slot body. Since the direction of the pre-embedded conduit is usually horizontal or vertical, in this embodiment, the first clamp 1 is connected to the intersection of the reinforcing bars near the design position of the pre-embedded conduit on the crack-resistant mesh. After the axis direction of the clamping groove 31 is accurately adjusted by the first adjusting member 21, the second clamp 3 can be moved along the horizontal slot 221 or the vertical slot 221 to ensure that the pre-embedded conduit is located in the design position after installation. For example, the axis direction of the clamping groove 31 has been adjusted to extend vertically. If there is a horizontal deviation from the design position of the pre-embedded conduit, the second clamp 3 is moved along the horizontal slot 221 to adjust the horizontal position of the axis of the clamping groove 31. The axis of the first clamp 1 has been adjusted to extend horizontally. If there is a deviation in height from the design position of the pre-embedded conduit, the second clamp 3 is moved along the vertical groove 221 to adjust the position of the axis of the clamping groove 31 in the height direction. In this embodiment, the horizontal groove 221 and the vertical groove 221 have sufficient length to meet the adjustment range requirements. In some cases, if the second clamp 3 cannot be adjusted to the design position of the clamping groove 31 by moving along the horizontal groove 221 or the vertical groove 221, it indicates that the installation position deviation of the first clamp 1 is too large. At this time, the device needs to be removed from the anti-crack mesh and reinstalled at a suitable rebar intersection.

[0042] The second locking member 3 is provided with a slider 32 on the side opposite to the clamping groove 31. The slider 32 is adapted to the groove 221 and is connected to a second limiting pin 33 for abutting against the groove 221. Specifically, the slider 32 includes a sliding part and a locking part. The sliding part is adapted to the cross-sectional shape of the groove 221, and the slider 32 can pass into the groove 221 through the end opening of the groove 221. One end of the locking part is connected to the sliding part and shrinks inward relative to both sides of the sliding part, and is adapted to the groove opening of the groove 221. The other end is connected to the clamping groove 31. Preferably, the second limiting pin 33 passes through the locking part and the sliding part and is threadedly connected to both. With this setting, the slider can move freely along the groove 221, and after moving to the set position, it is locked in the groove 221 by the second limiting pin 33, ensuring that the second locking member 3 will not move during the concrete pouring process. Preferably, multiple second limiting pins 33 can be provided to form a limit on the second locking member 3.

[0043] The inner wall of the aforementioned clamping groove 31 is an arc-shaped surface with a notch, forming a receiving space suitable for accommodating more than half of the cross-sectional area of ​​the pre-embedded conduit. With this configuration, the pre-embedded conduit can enter the clamping groove 31 through the notch. The arc-shaped surface of the clamping groove 31 fits tightly against the outer wall of the pre-embedded conduit and provides a certain clamping force to the pre-embedded conduit to prevent it from coming out and to ensure that the pre-embedded conduit is stably fixed on the second clip 3.

[0044] In the above embodiment, the second clip 3 is made of thermoplastic material and integrally injection molded, which has good strength and certain deformation recovery characteristics, so that the pre-embedded conduit can be pressed into the clamping groove 31 under the action of external force and stably fixed in the clamping groove 31 during the concrete pouring process.

[0045] This application embodiment also proposes a method for using the above-mentioned pre-embedded conduit fixing device for cast-in-place concrete built-in insulation system, including the following steps:

[0046] S1. Complete the construction of insulation boards and crack-resistant mesh;

[0047] In this embodiment, the other side of the crack-resistant mesh is a concrete side formwork, and the insulation board and the side formwork form a concrete pouring space; the crack-resistant mesh is 5mm away from the side formwork and 5cm away from the insulation board.

[0048] S2. Align the slot 11 of the first clip 1 with the steel bar of the crack-resistant mesh, press and rotate;

[0049] Specifically, the first clip 1 is moved to the vicinity of the rebar intersection near the design location of the pre-embedded conduit, so that the insertion port 111 of each clip 11 is aligned with a rebar around the intersection. Then, the rebar is forcefully inserted into the depth of the insertion port 111 and rotated in the direction of the rotation port 112 until the first clip 1 can no longer rotate.

[0050] In this embodiment, the extension length of the insertion port 111 is 5mm. After installation, the open end of the first clip 1 directly abuts against the side formwork of the concrete, which can give full play to its role in limiting the position of the anti-crack mesh.

[0051] S3. Adjust the axial direction of the clamping groove 31 on the second card 3 by adjusting the first adjusting member 21, and fix it by the first limiting pin 213;

[0052] The axial direction of the clamping groove 31 is determined according to the direction of the pre-embedded conduit to be installed. It is usually along the horizontal or vertical direction, or it can be at a certain angle with the horizontal or vertical square. The first adjusting member 21 can adjust the axial direction of the clamping groove 31 to any angle, and has a wide range of applications.

[0053] S4. Move the second clip 3 along the slot 221 on the second adjusting member 22 and fix it by the second limiting pin 33;

[0054] Specifically, after confirming that the axial direction of the clamping groove 31 is accurate, the position of the clamping groove 31 is checked to see if it meets the design requirements of the pre-embedded conduit. When there is a deviation between the two, the second clamp 3 is controlled to move along the transverse or longitudinal clamping groove 221 until the installation requirements are met.

[0055] S5. Insert the pre-embedded conduit into the clamping groove 31;

[0056] It is understandable that several pre-embedded conduit fixing devices are provided along the length of the pre-embedded conduit to jointly fix the pre-embedded conduit; when the worker applies a certain external force to open the clamping groove 31, the pre-embedded conduit can be pressed into the clamping groove 31 without damaging the clamping groove 31. After the clamping groove 31 returns to its original deformation, it will stably clamp the pre-embedded conduit inside.

[0057] In this application, after the pre-embedded conduit is installed, it is located near the insulation board.

[0058] S6. Erect concrete formwork and pour concrete.

[0059] The advantages and positive effects of this utility model are:

[0060] (1) This application achieves a reliable connection between the pre-embedded conduit and the crack-resistant mesh by setting the first clip to be connected to the crack-resistant mesh and the second clip to be connected to the pre-embedded conduit. By controlling the distance between the clip and the clamping groove, the pre-embedded conduit and the concrete surface have a set distance, which ensures the embedding depth of the pre-embedded conduit, avoids the cracking of the concrete at the location of the pre-embedded conduit, and ensures the construction quality of the concrete.

[0061] (2) By setting the first adjusting component, the axial direction of the clamping groove can be adjusted as needed, ensuring the accurate routing of the pre-embedded conduit; by setting the second adjusting component, the position of the clamping groove can be adjusted as needed, ensuring that the position of the pre-embedded conduit meets the design requirements and ensuring the accuracy of the installation position of the pre-embedded conduit.

[0062] (3) The overall structure is simple, easy to operate, and reliable in connection, which avoids the movement of the pre-embedded conduit during concrete pouring and ensures the construction quality.

[0063] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A fixing device for pre-embedded conduits in a cast-in-place concrete built-in insulation system, characterized in that: The first fastener includes four slots, which are adapted to engage with the crack-resistant mesh. The second clamping component includes a clamping groove, which faces opposite to the bayonet opening and is suitable for engaging with a pre-embedded conduit. An adjustment component is rotatably connected at one end to the end of the first card that is away from the bayonet opening, and movably connected at the other end to the end of the second card that is away from the clamping groove, for adjusting the position and axial direction of the clamping groove; There is a set distance between the bayonet and the clamping slot.

2. The pre-embedded conduit fixing device for the cast-in-place concrete built-in insulation system according to claim 1, characterized in that: The first card is a cavity structure with one end open, and the slots are evenly and circumferentially arranged at one end of the opening.

3. The pre-embedded conduit fixing device for the cast-in-place concrete built-in insulation system according to claim 2, characterized in that: The bayonet includes an insertion port and a rotating port. The insertion port is arranged along the opening direction, and the rotating port is connected to the end of the insertion port and arranged in the same direction along the same circumference.

4. The pre-embedded conduit fixing device for the cast-in-place concrete built-in insulation system according to claim 3, characterized in that: The adjustment assembly includes a first adjustment component, which includes a connecting plate and a rotating shaft. The two ends of the rotating shaft are rotatably connected to the first locking component and the connecting plate, respectively. The connecting plate is connected to a first limiting pin for abutting against the rotating shaft.

5. The pre-embedded conduit fixing device for the cast-in-place concrete built-in insulation system according to claim 4, characterized in that: The connecting plate is provided with a connecting block, and the first limiting pin is threadedly connected to the connecting block; the rotating shaft is also provided with a limiting groove suitable for the insertion of the limiting pin.

6. The pre-embedded conduit fixing device for cast-in-place concrete built-in insulation system according to claim 4 or 5, characterized in that: The adjustment assembly further includes a second adjustment member connected to the first adjustment member. The second adjustment member has a slot on the side facing away from the first adjustment member, and the second adjustment member slides into the slot.

7. The pre-embedded conduit fixing device for the cast-in-place concrete built-in insulation system according to claim 6, characterized in that: The card slot includes a horizontal card slot and a vertical card slot connected vertically. The card slot has an opening, the width of which is smaller than the width of the card slot body.

8. The pre-embedded conduit fixing device for the cast-in-place concrete built-in insulation system according to claim 7, characterized in that: The second card has a slider on the side facing away from the clamping groove. The slider is adapted to the card groove and is connected to a second limiting pin for abutting against the card groove.

9. The pre-embedded conduit fixing device for cast-in-place concrete built-in insulation system according to claim 1, 7 or 8, characterized in that: The inner wall of the clamping groove is an arc-shaped surface with a notch, forming a receiving space suitable for accommodating more than half of the cross-sectional area of ​​the pre-embedded conduit.

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