A corrugated pipe fixing device and installation method for prestressed construction

Abstract

This invention discloses a corrugated pipe fixing device and installation method for prestressed construction, relating to the field of prestressed construction technology. It solves the technical problem of corrugated pipes easily shifting due to the impact of concrete during pouring. The device includes: a reinforcing cage structure comprising longitudinal and transverse reinforcing bars distributed in a cross pattern; a corrugated pipe fitting installed inside the reinforcing cage structure; and a positioning and installation structure sleeved on the corrugated pipe fitting and connected to the reinforcing cage structure. This invention enables the tight installation of the corrugated pipe fitting and the reinforcing cage structure. Within a certain range, even if there is a distance between the corrugated pipe fitting and the reinforcing bars, the installation strength can be increased using universal reinforcement components. Compared to traditional wire installation, this is more stable and prevents displacement or shaking during concrete pouring, thus increasing the accuracy of the corrugated pipe fitting's pouring and processing position.

Description

Technical Field

[0001] This invention belongs to the field of prestressed construction technology, specifically a corrugated pipe fixing device and installation method for prestressed construction. Background Technology

[0002] During prestressed construction, corrugated pipes need to be installed in the steel cage, and prestressing tendons are installed inside the corrugated pipes. The position of the corrugated pipes determines the position of the prestressing tendons, and the position of the prestressing tendons determines the stability and mechanical properties of the prestressed member.

[0003] Traditional corrugated pipes are directly inserted into the steel reinforcement cage of prestressed members. During the pouring process, they are easily displaced by the impact of concrete, resulting in inaccurate positioning and failure to meet the design requirements for prestress distribution. In addition, the large distance between the corrugated pipes and the steel reinforcement makes it inconvenient to directly tie them with steel wire. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a corrugated pipe fixing device and installation method for prestressed construction.

[0005] A corrugated pipe fixing device for prestressed construction, comprising:

[0006] A steel cage structure, wherein the steel cage structure includes longitudinal steel bars and transverse steel bars that are distributed in a cross pattern;

[0007] Corrugated pipe fittings installed inside a steel cage structure;

[0008] A positioning and installation structure that is fitted onto the corrugated pipe fittings and connected to the steel cage structure;

[0009] Side positioning components for positioning the corrugated pipe fittings are provided between the intersecting longitudinal and transverse reinforcing bars.

[0010] The positioning and installation structure includes an annular installation component sleeved on the corrugated pipe fitting and two universal reinforcement components installed on the upper and lower surfaces of the annular installation component and connected to the steel cage structure.

[0011] Preferably, the annular mounting component includes a second fixing ring and a first fixing ring that are respectively sleeved on the corrugated pipe fitting. The second fixing ring and the first fixing ring are respectively provided with a second ear plate and a first ear plate at their two ends. The oppositely distributed first ear plate and second ear plate are connected by a plug-in component.

[0012] Preferably, the plug-in component includes a plug-in post fixed to the upper surface of the first ear plate, the plug-in post passing through the second ear plate and exposed on the outside, a side groove is provided at the upper end of the plug-in post, a locking block is provided inside the side groove, and a spring is provided between the locking block and the inner wall of the side groove.

[0013] Preferably, the universal reinforcement component includes a universal adjusting ball seat fixed to the surface of the second fixed ring, a screw is provided on the upper surface of the spherical block of the universal adjusting ball seat, a sleeve is sleeved on the screw, and a rotatable first clamp is provided on the front surface of the sleeve.

[0014] Preferably, an installation ring is fitted on the sleeve, and a limit bolt is provided between the two. A universal ball seat is provided between the first clamp and the installation ring.

[0015] Preferably, the side positioning component includes a semi-circular support arc plate sleeved on two longitudinal steel bars, a fixing plate vertically arranged on the outer surface of the semi-circular support arc plate, and a side positioning plate for positioning the side of the corrugated pipe fitting between the two fixing plates. The side positioning plate is U-shaped, and the fixing plate is viewed as Y-shaped from the side.

[0016] Preferably, the front and rear surfaces of the fixing plate are provided with rectangular notches, and the front and rear surfaces of the side positioning plate are provided with fixing posts that penetrate the rectangular notches, and the fixing posts are fitted with limiting rings that contact the surface of the fixing plate.

[0017] Preferably, a connecting member is provided between the intersecting longitudinal and transverse reinforcing bars. The connecting member includes a longitudinal clamp and a transverse clamp respectively sleeved on the transverse and longitudinal reinforcing bars, and a fixing seat is provided on the lower surface of the longitudinal clamp.

[0018] Preferably, the upper surface of the transverse clamp is provided with a ball-head rod, and the spherical end of the ball-head rod is rotatably located in the fixed seat.

[0019] An installation method for a corrugated pipe fixing device for prestressed construction;

[0020] S1. Multiple longitudinal and transverse steel bars are intersected to form a three-dimensional cage structure, and the connection between the longitudinal and transverse steel bars is fixed by connecting members.

[0021] S2. Next, install the corrugated pipe fittings into the cage structure formed in step S1, and fix the two together by the positioning and installation structure.

[0022] S3. A side positioning component is installed between two longitudinal steel bars distributed vertically. The side positioning component is located on both sides of the corrugated pipe fitting and positions both sides of the corrugated pipe fitting.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] (1) The present invention can realize the tight installation of corrugated pipe fittings and steel cage structure. Within a certain range, even if there is a distance between the corrugated pipe fittings and the steel bars, the installation strength of the two can be increased by using universal reinforcement components. It is more stable than the traditional steel wire installation and will not cause swaying due to concrete pouring, thus increasing the accuracy of the corrugated pipe fitting pouring and processing position.

[0025] (2) The side positioning component designed in this invention can adapt to the distance between two steel bars of different heights, thereby adapting to the installation of different corrugated pipe fittings, and further providing stable support for the side of the corrugated pipe fittings. The pouring of concrete will not cause the corrugated pipe fittings to shift laterally, thus increasing the accuracy of the corrugated pipe fittings installation position.

[0026] (3) The present invention can achieve the fastening of longitudinal and transverse steel bars through the designed connecting components. Compared with wire binding, it can increase the fastening of steel bars to each other, increase the stability of the entire steel cage structure, and thus increase the stability of corrugated pipe fittings during installation and use. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the corrugated pipe mounting device of the present invention;

[0028] Figure 2 For the present invention Figure 1 A schematic diagram of the central positioning and installation structure;

[0029] Figure 3 For the present invention Figure 2 Structural schematic diagram of the universal joint reinforcement component;

[0030] Figure 4 For the present invention Figure 2 A sectional view of the interlocking component;

[0031] Figure 5 For the present invention Figure 1 Schematic diagram of the middle positioning component;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of region A in the middle;

[0033] Figure 7 For the present invention Figure 1 Structural diagram of the connecting component;

[0034] In the diagram: 100, steel cage structure; 101, longitudinal reinforcement; 102, transverse reinforcement; 200, corrugated pipe fitting; 300, positioning and installation structure; 301, annular installation component; 3011, second fixing ring; 3012, first fixing ring; 3013, first ear plate; 3014, second ear plate; 3015, plug-in component; 30151, plug-in column; 30152, locking block; 30153, side groove; 30154, spring; 3016, annular groove; 302, universal reinforcement component; 3021. Universal adjusting ball seat; 3022, screw; 3023, sleeve; 3024, mounting ring; 3025, limiting bolt; 3026, first clamp; 3027, universal ball seat component; 400, side positioning component; 401, semi-circular support arc plate; 402, side positioning plate; 403, fixing plate; 404, connecting bolt; 405, rectangular notch; 406, fixing column; 407, limiting ring; 500, connecting component; 501, transverse clamp; 502, longitudinal clamp; 503, fixing seat; 504, ball head rod. Detailed Implementation

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figure 1 - Figure 4 This application provides a corrugated pipe fixing device for prestressed construction, comprising:

[0038] The steel cage structure 100 includes longitudinal steel bars 101 and transverse steel bars 102 that are distributed in a cross pattern. The steel cage structure 100 has space inside for the installation of corrugated pipe fittings 200.

[0039] Corrugated pipe fitting 200 installed inside the steel cage structure 100;

[0040] A positioning installation structure 300 is installed on the corrugated pipe fitting 200 and connected to the steel cage structure 100. The positioning installation structure 300 can be used to achieve a tight installation between the corrugated pipe fitting 200 and the steel cage structure 100. Within a certain range, even if there is a distance between the corrugated pipe fitting 200 and the steel bar, the universal reinforcement component 302 can be used to increase the installation strength of the two. Compared with the traditional steel wire installation, it is more stable and will not shift or shake due to concrete pouring, thus increasing the accuracy of the corrugated pipe fitting 200 pouring position.

[0041] A side positioning component 400 is provided between the intersecting longitudinal steel bars 101 and transverse steel bars 102 to position the corrugated pipe fitting 200 on the side. The side positioning component 400 can limit the lateral position of the installed corrugated pipe fitting 200, making the installation position of the corrugated pipe fitting 200 more accurate and improving the subsequent casting quality of the corrugated pipe fitting 200.

[0042] The positioning and installation structure 300 includes an annular installation component 301 sleeved on the corrugated pipe fitting 200 and two universal reinforcing components 302 installed on the upper and lower surfaces of the annular installation component 301 and connected to the steel cage structure 100.

[0043] In this embodiment, preferably, the annular mounting component 301 includes a second fixing ring 3011 and a first fixing ring 3012 that are respectively sleeved on the corrugated pipe fitting 200. The second fixing ring 3011 and the first fixing ring 3012 form a circular structure sleeved on the corrugated pipe fitting 200, and the inner surface of the circular structure is provided with an annular groove 3016. The annular groove 3016 allows the protrusion of the corrugated pipe fitting 200 to be inserted when the circular structure is installed on the corrugated pipe fitting 200, thereby increasing the installation strength between the circular structure and the corrugated pipe fitting 200 and making it less likely to cause front-to-back misalignment. The second fixing ring 3011 and the first fixing ring 3012 are respectively provided with a second ear plate 3014 and a first ear plate 3013 at both ends. The oppositely distributed first ear plate 3013 and second ear plate 3014 are connected by a plug-in component 3015.

[0044] In this embodiment, preferably, the plug-in component 3015 includes a plug-in post 30151 fixed to the upper surface of the first ear plate 3013. Using the plug-in component 3015 reduces the inconvenience of rotating bolts in the steel cage structure 100 and increases the ease of installation of the second fixing ring 3011 and the first fixing ring 3012 with the corrugated pipe fitting 200. The plug-in post 30151 penetrates the second ear plate 3014 and is exposed on the outside. The surface of the second ear plate 3014 has a plug hole for the plug-in post 30151 to pass through. Multiple plug-in pins 30151 can be arranged, and the vertical projection size of the plug-in pins 30151 is smaller than the size of the insertion hole on the second ear plate 3014, so that the plug-in pins 30151 can pass through the insertion hole. A side groove 30153 is provided at the upper end of the plug-in pins 30151. A locking block 30152 is provided inside the side groove 30153. The locking block 30152 is a right-angled triangular wedge. A spring 30154 is provided between the locking block 30152 and the inner wall of the side groove 30153. The length of the spring 30154 is smaller than the size of the side groove 30153, which can prevent the locking block 30152 from disengaging from the side groove 30153 and facilitate the left and right movement of the locking block 30152. When the plug-in pins 30151 pass through the second ear plate 3014, the lower surface of the locking block 30152 contacts the upper surface of the second ear plate 3014.

[0045] In this embodiment, preferably, the universal reinforcing member 302 includes a universal adjusting ball seat 3021 fixed to the surface of the second fixing ring 3011. The universal reinforcing member 302 can easily change its installation angle and height to adapt to the distance between the reinforcing bar and the corrugated pipe fitting 200. The universal adjusting ball seat 3021 has a self-locking mechanism, which is a common structure and can be purchased on the market. After the universal adjusting ball seat 3021 is locked, the structure is more stable. A screw 3022 is provided on the upper surface of the spherical block of the universal adjusting ball seat 3021. A sleeve 3023 is sleeved on the screw 3022. A rotatable first clamp 3026 is provided on the front surface of the sleeve 3023. The structure of the first clamp 3026, the transverse clamp 501 and the longitudinal clamp 502 is the same as that of the annular mounting member 301, but the size is more adapted to the size of the reinforcing bar.

[0046] In this embodiment, preferably, an installation ring 3024 is fitted on the sleeve 3023, and a limit bolt 3025 is provided between the two. The height adjustment of the installation ring 3024 can further expand the height installation range of the first clamp 3026. The height position of the installation ring 3024 can be limited and fixed by the limit bolt 3025. A universal ball seat 3027 is provided between the first clamp 3026 and the installation ring 3024 to facilitate changing the angle of the first clamp 3026 and facilitate installation on the reinforcing bar.

[0047] In summary, when fixing the corrugated pipe fitting 200 for prestressed construction, the first fixing ring 3012 and the second fixing ring 3011 can be passed through the steel cage structure 100 to the outside of the corrugated pipe fitting 200. Then, the first fixing ring 3012 and the second fixing ring 3011 are aligned, and the corrugated protrusions of the corrugated pipe fitting 200 are embedded in the annular groove 3016 inside the first fixing ring 3012 and the second fixing ring 3011. Then, the sleeve 3023 can be rotated to change its height, thereby changing the height of the first clamp 3026 on the sleeve 3023, bringing the first clamp 3026 closer to the steel reinforcement. When the position is appropriate, the first clamp 3026 is fitted onto the steel reinforcement, and then the universal adjusting ball seat 3021 is locked to complete the fixing of the first fixing ring 3012 and the second fixing ring 3011, while simultaneously fixing the corrugated pipe fitting 200. Workers can then move the fitting along its length. The installation of multiple positioning structures 300 prevents the corrugated pipe fitting 200 from shifting during concrete pouring, improving the installation stability of the corrugated pipe fitting 200 and thus improving work and construction efficiency. Simultaneously, when the first fixing ring 3012 and the second fixing ring 3011 are connected, the worker can align the insertion post 30151 and pass it through the insertion hole on the second ear plate 3014. When the insertion post 30151 passes through the insertion hole, the outer inclined surface of the locking block 30152 is compressed, generating a horizontal component force. The spring 30154 is compressed, and the locking block 30152 enters the side groove 30153. After the locking block 30152 passes through the insertion hole, the spring 30154 rebounds, pushing the locking block 30152 back to its original position and locking the second ear plate 3014, thus completing the quick connection. This eliminates the hassle of bolted connections required by traditional fixing rings, making it easier for workers to operate in confined spaces within the steel cage frame and improving usability.

[0048] Example 2

[0049] Reference Figure 5 and Figure 6 This is the second embodiment of the present invention.

[0050] In this embodiment, preferably, the side positioning component 400 includes a semi-circular support arc plate 401 sleeved on two longitudinal steel bars 101. A fixing plate 403 is vertically arranged on the outer surface of the semi-circular support arc plate 401, and the two are connected by a connecting bolt 404 for easy assembly. A side positioning plate 402 for positioning the side of the corrugated pipe fitting 200 is arranged between the two fixing plates 403. The side positioning plate 402 is U-shaped, and the inner side of the side positioning plate 402 contacts the outer surface of the corrugated pipe fitting 200. The fixing plate 403 is Y-shaped from the side, so that the lower end of the fixing plate 403 has a notch for the end of the side positioning plate 402 to extend into. A rectangular notch 405 is opened on the front and rear surfaces of the fixing plate 403. A fixing post 406 penetrating the rectangular notch 405 is arranged on the front and rear surfaces of the side positioning plate 402. A limiting ring 407 that contacts the surface of the fixing plate 403 is sleeved on the fixing post 406. The diameter of the limiting ring 407 is larger than the size of the rectangular notch 405.

[0051] In summary, during use, the fixing plate 403 is fixed to the outer surface of the semi-circular support arc plate 401 by connecting bolts 404, according to the distance between the upper and lower longitudinal steel bars 101. Simultaneously, the limiting ring 407 is loosened, allowing the fixing plate 403 to move outward along the fixing column 406, changing the distance between the two semi-circular support arc plates 401 until the distance is appropriate. Then, the limiting ring 407 is tightened to make it contact the surface of the fixing plate 403. The frictional resistance of the contact achieves a tight connection between the fixing plate 403 and the fixing column 406. When installing the corrugated pipe fitting 200, the entire side positioning component 400 can be moved towards the outside. The corrugated pipe fitting 200 is brought close together, and two semi-circular support arc plates 401 are respectively fitted onto two longitudinal steel bars 101 in the vertical direction. The inner surface of the side positioning plate 402 is in contact with the outer surface of the corrugated pipe fitting 200. The frictional resistance between the semi-circular support arc plate 401 and the longitudinal steel bar 101 makes it difficult for them to separate. At the same time, the semi-circular support arc plate 401 can be connected to another semi-circular support arc plate 401 and connected through the plug-in component 3015 between the two semi-circular support arc plates 401 to form a structure with the same structure as the ring installation component 301 but different in size, so as to achieve stable installation and casting of the corrugated pipe fitting 200.

[0052] Example 3

[0053] Reference Figure 7 This is the third embodiment of the present invention.

[0054] In this embodiment, preferably, a connecting member 500 is provided between the intersecting longitudinal steel bars 101 and transverse steel bars 102. The connecting member 500 can be used to achieve the fastening of the longitudinal steel bars 101 and transverse steel bars 102. Compared with wire binding, it can increase the fastening of the steel bars. The connecting member 500 includes a longitudinal clamp 502 and a transverse clamp 501 respectively sleeved on the transverse steel bars 102 and the longitudinal steel bars 101. A fixing seat 503 is provided on the lower surface of the longitudinal clamp 502, and a ball head rod 504 is provided on the upper surface of the transverse clamp 501. The spherical end of the ball head rod 504 rotates and is located in the fixing seat 503. The ball head rod 504 and the fixing seat 503 are combined to form the same structure as the universal adjusting ball seat 3021, which has a self-locking function.

[0055] In summary, during use, first, the transverse clamp 501 is fitted onto the longitudinal reinforcing bar 101, then the longitudinal reinforcing bar 101 is vertically installed above the transverse reinforcing bar 102, and the longitudinal clamp 502 is fitted onto the transverse reinforcing bar 102. The longitudinal reinforcing bar 101 and the transverse reinforcing bar 102 form a cross shape. Since the ball head rod 504 and the fixed seat 503 combine to form the same structure as the universal adjusting ball seat 3021, after self-locking, the transverse clamp 501 and the longitudinal clamp 502 are locked together, increasing the assembly stability of the longitudinal reinforcing bar 101 and the transverse reinforcing bar 102.

[0056] Example 4

[0057] The installation method of a prestressed construction corrugated pipe fixing device is obtained by combining the devices in Embodiment 1, Embodiment 2 and Embodiment 3;

[0058] S1. Multiple longitudinal steel bars 101 and transverse steel bars 102 are intersected to form a three-dimensional cage structure, and the connection between the longitudinal steel bars 101 and the transverse steel bars 102 is fixed by a connecting member 500.

[0059] S2. Then install the corrugated pipe fitting 200 into the cage structure formed in step S1, and fix the two together by the positioning and mounting structure 300.

[0060] S3. A side positioning component 400 is installed between the two longitudinal steel bars 101 distributed vertically. The side positioning component 400 is located on both sides of the corrugated pipe fitting 200 and positions the corrugated pipe fitting 200 on both sides.

[0061] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A corrugated pipe fixing device for prestressed construction, characterized in that, include: A steel cage structure (100) includes longitudinal steel bars (101) and transverse steel bars (102) that are distributed in a cross pattern. Corrugated pipe fittings (200) installed inside the steel cage structure (100). A positioning installation structure (300) is sleeved and installed on the corrugated pipe fitting (200) and connected to the steel cage structure (100). A side positioning member (400) for positioning the side of the corrugated pipe fitting (200) is provided between the intersecting longitudinal steel bars (101) and transverse steel bars (102). The positioning and installation structure (300) includes an annular installation component (301) sleeved on the corrugated pipe fitting (200) and two universal reinforcing components (302) installed on the upper and lower surfaces of the annular installation component (301) and connected to the steel cage structure (100). The annular mounting component (301) includes a second fixing ring (3011) and a first fixing ring (3012) that are respectively sleeved on the corrugated pipe fitting (200). The second fixing ring (3011) and the first fixing ring (3012) are respectively provided with a second ear plate (3014) and a first ear plate (3013) at both ends. The first ear plate (3013) and the second ear plate (3014) that are distributed opposite to each other are connected by a plug-in component (3015). The universal reinforcement component (302) includes a universal adjusting ball seat (3021) fixed to the surface of the second fixing ring (3011). A screw (3022) is provided on the upper surface of the spherical block of the universal adjusting ball seat (3021). A sleeve (3023) is sleeved on the screw (3022). A rotatable first clamp (3026) is provided on the front surface of the sleeve (3023).

2. The corrugated pipe fixing device for prestressed construction according to claim 1, characterized in that, The plug-in component (3015) includes a plug-in post (30151) fixed on the upper surface of the first ear plate (3013). The plug-in post (30151) passes through the second ear plate (3014) and is exposed on the outside. A side groove (30153) is provided at the upper end of the plug-in post (30151). A locking block (30152) is provided inside the side groove (30153). A spring (30154) is provided between the locking block (30152) and the inner wall of the side groove (30153).

3. The corrugated pipe fixing device for prestressed construction according to claim 1, characterized in that, The sleeve (3023) is fitted with an installation ring (3024), and a limit bolt (3025) is provided between the two. A universal ball seat (3027) is provided between the first clamp (3026) and the installation ring (3024).

4. The corrugated pipe fixing device for prestressed construction according to claim 1, characterized in that, The side positioning component (400) includes a semi-circular support arc plate (401) sleeved on two longitudinal steel bars (101). A fixing plate (403) is vertically arranged on the outer surface of the semi-circular support arc plate (401). A side positioning plate (402) for positioning the side of the corrugated pipe fitting (200) is arranged between the two fixing plates (403). The side positioning plate (402) is U-shaped, and the fixing plate (403) is viewed as Y-shaped from the side.

5. A corrugated pipe fixing device for prestressed construction according to claim 4, characterized in that, The fixing plate (403) has rectangular notches (405) on its front and rear surfaces. The side positioning plate (402) has fixing posts (406) that pass through the rectangular notches (405) on its front and rear surfaces. A limiting ring (407) that contacts the surface of the fixing plate (403) is fitted on the fixing post (406).

6. The corrugated pipe fixing device for prestressed construction according to claim 1, characterized in that, A connecting member (500) is provided between the longitudinal reinforcing bars (101) and transverse reinforcing bars (102) that are distributed in a cross pattern. The connecting member (500) includes a longitudinal clamp (501) and a transverse clamp (502) respectively sleeved on the transverse reinforcing bars (102) and the longitudinal reinforcing bars (101). A fixing seat (503) is provided on the lower surface of the longitudinal clamp (501).

7. A corrugated pipe fixing device for prestressed construction according to claim 6, characterized in that, The upper surface of the transverse clamp (502) is provided with a ball head rod (504), and the spherical end of the ball head rod (504) is rotatably located in the fixed seat (503).

8. A method for installing a corrugated pipe fixing device for prestressed construction, characterized in that, The corrugated pipe fixing device for prestressed construction according to any one of claims 1-7 is adopted; S1. Multiple longitudinal steel bars (101) and transverse steel bars (102) are intersected to form a three-dimensional cage structure, and the connection between the longitudinal steel bars (101) and the transverse steel bars (102) is fixed by a connecting member (500). S2. Then install the corrugated pipe fitting (200) into the cage structure formed in step S1, and fix the two together by the positioning and mounting structure (300); S3. A side positioning component (400) is installed between two longitudinal steel bars (101) distributed vertically. The side positioning component (400) is located on both sides of the corrugated pipe fitting (200) to position the corrugated pipe fitting (200) on both sides.

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