Positioning device for calandria construction

Abstract

The utility model belongs to the field of engineering construction, and particularly relates to a calandria construction positioning device which comprises a plurality of calandria positioning frames, each calandria positioning frame comprises two vertical U-shaped frames, the two vertical U-shaped frames are connected together through a top rod and a bottom rod, and the bottoms of the calandria positioning frames are embedded in a concrete cushion layer. A plurality of rows of calandria limiting stoppers are arranged in the calandria positioning frame from bottom to top, and an encapsulating template is fixedly connected between the vertical U-shaped frames; the size of the prefabricated calandria pipe joint is consistent with that of a reserved opening of the inspection well. According to the prefabricated calandria pipe joint, the calandria positioning frame is pre-buried in a concrete cushion layer, then the calandria limiting device and the encapsulation formwork are fixed to the calandria positioning frame, the problem that a pipeline floats upwards during concrete pouring is solved, and the common quality problem that water is prone to leaking at the joint of the pipeline and an inspection well is solved through the prefabricated calandria pipe joint.

Description

Technical Field

[0001] The utility model belongs to the field of engineering construction, and in particular relates to a pipe laying construction positioning device. Background Art

[0002] In the field of engineering construction, traditional multi-layer pipeline construction such as power pipes generally uses concrete to protect the pipes. During the concrete pouring process, the pipes will float due to the high specific gravity of concrete, and the templates on both sides are not easy to fix during the encapsulation. In addition, the joints where the pipes are connected to the inspection well are weak points in quality, and water leakage is common. Summary of the invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the background technology and provide a pipe laying construction positioning device.

[0004] The present invention is achieved through the following technical solutions:

[0005] A pipe laying construction positioning device comprises a plurality of pipe laying positioning frames, wherein the pipe laying positioning frames comprise two symmetrical vertical U-shaped frames, wherein the U-shaped opening of the vertical U-shaped frames faces outward, the upper ends of the two vertical U-shaped frames are fixedly connected together by a horizontal top rod, and the lower ends of the two vertical U-shaped frames are fixedly connected together by a horizontal bottom rod, the upper surface of the vertical U-shaped frame is flush with the upper surface of the top rod, and the lower surface of the vertical U-shaped frame is flush with the bottom surface of the bottom rod, and the bottom of the bottom rod and the bottom of the vertical U-shaped frame are pre-buried in a concrete cushion layer; a plurality of rows of pipe limiters are arranged from bottom to top in the pipe laying positioning frame, and the pipe limiters are integrally connected to the pipe The body is in the shape of a distance, and the pipe limiter includes two symmetrical upper and lower parts, both of which are provided with semicircular grooves, and the two semicircular grooves form a limiting circular hole, and the inner diameter of the limiting circular hole is equal to the outer diameter of the pipeline, and the adjacent pipe limiters are connected together by bolts, and the pipe limiters close to the vertical U-shaped frame are fixed together with the vertical U-shaped frame by bolts; the encapsulation template is fixedly connected between the vertical U-shaped frames, and the encapsulation template is at the same height as the pipe positioning frame; it also includes prefabricated pipe sections, and the prefabricated pipe sections are provided with a plurality of rows of through holes matching the pipelines, and the size of the prefabricated pipe sections is consistent with the reserved opening of the inspection well.

[0006] Preferably, a strip-shaped groove is provided around the outer surface of the front end of the prefabricated pipe segment, and a water-swellable waterstop strip is installed in the strip-shaped groove.

[0007] Preferably, the vertical U-shaped frame is made of channel steel.

[0008] Preferably, the vertical U-shaped frame is formed by vertically cutting a square tube.

[0009] The device of the present invention pre-buries the pipe positioning frame in the concrete cushion layer, and then fixes the pipe limiter and the encapsulation template together with the pipe positioning frame, thereby solving the problem of pipe floating when pouring concrete; the device of the present invention is provided with prefabricated pipe sections, thereby solving the common quality problem of water leakage at the joint between the pipeline and the inspection well; the encapsulation template of the present invention is fixed between two adjacent pipe positioning frames, thereby realizing concrete pouring in separate compartments, reducing the pouring interval time, shortening the construction period, and solving the common quality problem of cracks caused by temperature deformation of long-distance concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure used in this embodiment;

[0011] Figure 2 This is a schematic diagram of the structure of the present embodiment without installing the encapsulation template;

[0012] Figure 3 This is a schematic diagram of the structure of the pipe arrangement and positioning frame after being pre-buried in this embodiment;

[0013] Figure 4 This is a schematic diagram of the structure of the pipe positioning frame and the pipe limiter of this embodiment;

[0014] Figure 5 This is a schematic diagram of the structure of the pipe arrangement and positioning frame of this embodiment;

[0015] Figure 6 This is an enlarged structural diagram of the vertical U-shaped frame of this embodiment;

[0016] Figure 7 This is a schematic diagram of the structure of the pipe limiter of this embodiment;

[0017] Figure 8 This is a schematic diagram of the split structure of the prefabricated pipe section and the inspection well in this embodiment;

[0018] Fig. 9 This is a schematic diagram of the structure of the prefabricated pipe segment in this embodiment.

[0019] In the figure, 1 is a pipe positioning frame, 2 is a vertical U-shaped frame, 3 is a top rod, 4 is a bottom rod, 5 is a concrete cushion, 6 is a pipe limiter, 7 is a semicircular groove, 8 is a limiting circular hole, 9 is a pipeline, 10 is a sealing template, 11 is a prefabricated pipe section, 12 is an inspection well, 13 is a reserved opening, 14 is a strip groove, and 15 is a through hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0021] The present embodiment includes a plurality of pipe positioning frames 1. The pipe positioning frames 1 are rectangular frames as a whole. The pipe positioning frames 1 include two symmetrical vertical U-shaped frames 2, and the U-shaped openings of the vertical U-shaped frames 2 face outward. The upper ends of the two vertical U-shaped frames 2 are fixedly connected together by a horizontal top rod 3, and the upper surface of the vertical U-shaped frame 2 is flush with the upper surface of the top rod 3. The lower ends of the two vertical U-shaped frames 2 are fixedly connected together by a horizontal bottom rod 4, and the lower surface of the vertical U-shaped frame 2 is flush with the bottom surface of the bottom rod 4. The bottom of the pipe positioning frame 1 is embedded in the concrete cushion layer 5, specifically, the bottom rod 4 at the bottom and the bottom of the vertical U-shaped frames 2 on both sides are embedded in the concrete cushion layer 5.

[0022] Several rows of pipe stoppers 6 are arranged from bottom to top in the pipe positioning frame 1. In this embodiment, four rows of pipe stoppers 6 are arranged. The pipe stoppers 6 are used to limit the pipes 9. The pipe stoppers 6 are in the shape of a distance as a whole, and are composed of two symmetrical upper and lower parts. Both the upper and lower parts are provided with semicircular grooves 7. The two semicircular grooves 7 form a limiting circular hole 8. The limiting circular hole 8 is used for the pipe 9 to pass through and position the pipe 9. Therefore, the inner diameter of the limiting circular hole 8 is equal to the outer diameter of the pipe 9. Adjacent pipe stoppers 6 are fixedly connected together, and the pipe stoppers 6 at the left and right ends that are most externally close to the vertical U-shaped frame 2 are fixed together with the vertical U-shaped frame 2 by bolts.

[0023] The vertical U-shaped frame 2 can be made of channel steel commonly used on the construction site. To save costs, the square tubes on the construction site can also be cut vertically to form the vertical U-shaped frame 2. The vertical U-shaped frames 2 on the same side are fixedly connected to the encapsulation template 10, which is the same height as the pipe positioning frame 1. A number of positioning holes are provided on the vertical U-shaped frame 2. The encapsulation template 10 and the pipe positioning frame 1 are fixed together by bolts passing through the positioning holes. The bolts can be loosened and the encapsulation template 10 can be removed later.

[0024] The present invention also includes a prefabricated drainage pipe section 11, which is prefabricated with concrete. The prefabricated drainage pipe section 11 is provided with a plurality of rows of through holes 15 matching the pipe 9. Similarly, four rows of through holes 15 are provided in this embodiment, and the through holes 15 are used to connect the pipe 9. The size of the prefabricated drainage pipe section 11 is consistent with the reserved opening 13 of the inspection well 12. The prefabricated drainage pipe section 11 needs to be connected to the reserved opening 13 of the inspection well 12 in the later stage, and the front end becomes a part of the wall of the inspection well 12. In order to further prevent water leakage at the joint, a strip groove 14 is provided around the outer surface of the front end of the prefabricated drainage pipe section 11, and a water-swelling waterstop strip is installed in the strip groove 14. The depth of the strip groove 14 is half the thickness of the water-swelling waterstop strip. The water-swelling waterstop strip is tightly attached to the reserved opening 13 of the inspection well 12 in the later stage.

[0025] Construction process: After the trench bottom is leveled, combined with the design position of the on-site inspection well 12, the prefabricated drainage pipe segment 11 is placed along the direction of the pipeline 9. The bottom of the prefabricated drainage pipe segment 11 is temporarily supported. When the prefabricated drainage pipe segment 11 is placed, the front end is located at the reserved opening 13 of the designed inspection well 12, and the front end face and the inner wall of the reserved opening 13 are on the same vertical plane. In order to clearly show the placement position of the prefabricated drainage pipe segment 11, Figure 1 and attached Figure 2The inspection well 12 to be cast in situ later is drawn in advance. After the prefabricated drainage pipe section 11 is placed, the drainage pipe positioning frame 1 is first fixedly installed in the groove according to the direction and length of the pipeline 9. The distance between the frontmost drainage pipe positioning frame 1 and the prefabricated drainage pipe section 11 is 1.5 meters. After that, a drainage pipe positioning frame 1 is fixedly installed every 3 meters in the longitudinal direction. This embodiment uses a 6-meter section of the pipeline 9, so 1.5 meters and 3 meters are set. During construction, the distance setting can be adjusted according to the length of the pipeline 9. The bottom rod 4 of the pipe positioning frame 1 is fixed to the bottom of the groove, and the top rod 3 is not installed first. After the pipe positioning frame 1 is fixed, the cushion concrete is poured to form a concrete cushion 5 in the groove. At the same time, the bottom rod 4 of the pipe positioning frame 1 and the bottom of the vertical U-shaped frame 2 are pre-buried in the concrete cushion 5. Then, the pipe stoppers 6 are installed from bottom to top in the pipe positioning frame 1. The bottom row of pipe stoppers 6 are installed first. The pipe stoppers 6 on both sides are fixedly connected to the vertical U-shaped frame 2 by bolts. The adjacent pipe stoppers 6 are fixedly connected together by bolts, and the pipe stoppers 6 and the vertical U-shaped frame 2 form a whole. After the bottom row of pipe stoppers 6 are installed, pipes 9 are placed in the limiting circular holes 8 of the pipe stoppers 6 to form the bottom row of pipes. The front end of the frontmost pipe section 9 extends into the prefabricated pipe section 11, and the front end face is flush with the front end face of the prefabricated pipe section 11. When installing the pipe 9, pull the line through, align it, use matching pipe clamp interfaces between pipes 9 and pipes 9, and use sealing waterproof tape to adhere and fix the interfaces. Continue to install the upper pipe limiter 6 and pipe 9 in the same way. When the four-layer pipe limiter 6 and pipe 9 are installed, install the top rod 3 of the pipe positioning frame 1. The top rod 3 is fixed together with the vertical U-shaped frame 2 on both sides to form a fixed pipe encapsulation support system. Then, the encapsulation template 10 is fixedly installed between the pipe positioning frames 1 to form a concrete encapsulation template system divided by the pipe limiter 6. Such a pipe encapsulation with separate compartments can be encapsulated by pouring concrete in compartments. According to the construction period, the skipping method can be used to shorten the construction period or pour in sequence to reduce the difficulty of construction organization. The compartment pouring can offset the volume deformation caused by the temperature change of the concrete and prevent concrete cracks. The concrete in each compartment is poured in layers with a layer thickness of 30 cm. After the concrete is poured, the surface is collected, the top surface is leveled, and the plastic film is covered for maintenance. During the curing period of the pipeline encapsulating concrete, the steel bars of the inspection well 12 are tied, and water-swelling waterstop strips are installed in the strip grooves 14 of the prefabricated drainage pipe segments 11 to avoid the risk of leakage at the joints between the inspection well 12 and the prefabricated drainage pipe segments 11. The formwork is set up and the concrete for the inspection well body is poured. After curing, the formwork is removed to form the inspection well 12, and the prefabricated drainage pipe segments 11 are connected to the inspection well 12 as a whole. This form of cast-in-place inspection well 12 connected to the prefabricated drainage pipe segments 11 can ensure the quality of the joints and prevent water leakage compared to traditional processes.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe laying construction positioning device, characterized in that: The invention comprises a plurality of pipe positioning frames (1), wherein the pipe positioning frames (1) comprise two symmetrical vertical U-shaped frames (2), wherein the U-shaped opening of the vertical U-shaped frames (2) faces outward, the upper ends of the two vertical U-shaped frames (2) are fixedly connected together by a horizontal top rod (3), and the lower ends of the two vertical U-shaped frames (2) are fixedly connected together by a horizontal bottom rod (4), the upper surface of the vertical U-shaped frame (2) is flush with the upper surface of the top rod (3), and the lower surface of the vertical U-shaped frame (2) is flush with the bottom surface of the bottom rod (4), and the bottom of the bottom rod (4) and the bottom of the vertical U-shaped frame (2) are pre-buried in a concrete cushion layer (5); a plurality of row pipe stoppers (6) are arranged from bottom to top in the pipe positioning frame (1), and the row pipe stoppers (6) are generally in the shape of a pitch, and the row pipe stoppers (6) include The invention comprises two symmetrical upper and lower parts, both of which are provided with semicircular grooves (7), the two semicircular grooves (7) forming a limiting circular hole (8), the inner diameter of the limiting circular hole (8) being equal to the outer diameter of the pipe (9), adjacent pipe stoppers (6) being connected together by bolts, and the pipe stoppers (6) close to the vertical U-shaped frame (2) being fixed together with the vertical U-shaped frame (2) by bolts; a sealing template (10) being fixedly connected between the vertical U-shaped frames (2), the sealing template (10) being of the same height as the pipe positioning frame (1); and a prefabricated pipe section (11) being provided with a plurality of rows of through holes (15) matching the pipe (9), and the size of the prefabricated pipe section (11) being consistent with the reserved opening (13) of the inspection well (12).

2. The pipe laying construction positioning device according to claim 1, characterized in that: A strip-shaped groove (14) is provided around the outer surface of the front end of the prefabricated pipe segment (11), and a water-swellable water stop strip is installed in the strip-shaped groove (14).

3. The pipe laying construction positioning device according to claim 1, characterized in that: The vertical U-shaped frame (2) is made of channel steel.

4. The pipe laying construction positioning device according to claim 1, characterized in that: The vertical U-shaped frame (2) is formed by vertically cutting a square tube.

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