Internal pulling construction device for large-diameter PCCP (prestressed concrete cylinder pipe)

Abstract

The utility model relates to the technical field of PCCP pipeline installation, in particular to a large-diameter PCCP pipeline internal pulling construction device which comprises an installed pipeline and a pipeline to be installed, an internal supporting assembly is arranged in the installed pipeline, an annular fixing assembly is fixedly connected to a pipe opening of the pipeline to be installed, and the annular fixing assembly is fixedly connected with the pipeline to be installed. A chain block is arranged between the inner supporting assembly and the annular fixing assembly, and the two ends of the chain block are connected with the inner supporting assembly and the annular fixing assembly through pull rods. According to the utility model, the problems of unstable pipeline connection and low working efficiency are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCCP pipeline installation, in particular to a large-diameter PCCP pipeline inner pulling construction device. Background Art

[0002] Traditional PCCP pipelines are generally laid in excavated tunnels. Due to construction limitations, it is difficult for workers to connect the pipelines, and it is time-consuming and labor-intensive, consuming a lot of physical strength and resulting in low construction efficiency.

[0003] Most existing hydraulic inner-pull devices for rapid PCCP pipe installation feature only a single hydraulic rod, making it impossible to individually pull the connecting pipes. Furthermore, the hydraulic inner-pull device cannot be adjusted to the PCCP pipe's inner diameter, resulting in instability when connected to the pipe's inner wall, low efficiency, and poor inner-pull performance. Therefore, a technical challenge remains to develop a hydraulic inner-pull device for rapid PCCP pipe installation that addresses these existing technical issues. Utility Model Content

[0004] In order to solve the above-mentioned problems of the prior art, the utility model provides a large-diameter PCCP pipeline inner pulling construction device, which solves the problems of unstable pipeline connection and low work efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-diameter PCCP pipe internal pulling construction device, comprising an installed pipe and a pipe to be installed, an internal support assembly is provided in the installed pipe, and the pipe mouth of the pipe to be installed is fixedly connected with an annular fixing assembly, a hand hoist is provided between the internal support assembly and the annular fixing assembly, and the two ends of the hand hoist are connected to the internal support assembly and the annular fixing assembly through a pull rod.

[0006] The above structural design is adopted to set up a structure combining an inner support component, an annular fixing component and a hand hoist to connect the installed pipe and the pipe to be installed. The installed pipe and the pipe to be installed are pulled closer by controlling the hand hoist, which is simple and convenient to operate.

[0007] Preferably, the annular fixing assembly includes a fixing plate and several telescopic rods fixedly connected to the side end of the fixing plate, and a fastening mechanism is installed at one end of the telescopic rod away from the fixing plate, and the fastening mechanism can fix one end of the telescopic rod at the pipe mouth of the pipe to be installed.

[0008] With the above structural design, the annular fixing assembly is fixed to the pipe mouth of the pipe to be installed through the fastening mechanism, which not only fixes the pipe but also ensures the stability of the support for the pipe end and prevents the pipe from being damaged.

[0009] Preferably, the fastening mechanism includes a U-shaped plate clamped on the pipe mouth to be installed, one end of the U-shaped plate is threadedly connected to a fastening bolt, one end of the fastening bolt passes through the U-shaped plate and abuts against the side wall of the pipe to be installed.

[0010] With the above structural design, the U-shaped plate is fixed to the pipe opening of the pipe to be installed by tightening bolts.

[0011] Preferably, the inner support assembly includes a support column, the support column is hollow inside, and the side wall of the support column has two sliding grooves symmetrically provided along the length direction, a movable ring is sleeved on the support column, and a fixed plate is fixedly connected to the movable ring, the fixed plate is located inside the support column and the two ends of the fixed plate pass through the sliding groove, an electric push rod is installed at the end of the support column away from the pull rod, the movable rod of the electric push rod extends into the support column and is fixedly connected to the fixed plate, the circumferential side of the movable ring and one end of the support column are equidistantly connected to a plurality of support rods through a connecting seat, and the two support rods symmetrically arranged on the left and right are rotatably connected to a side plate, and the side plate abuts against the inner wall of the installed pipe.

[0012] With the above structural design, the movable ring is moved on the support column by the electric push rod, and the support rod forms a tensioning mechanism inside the installed pipe to support and fix the inside of the pipe, and the structure is stable.

[0013] Preferably, a non-slip rubber pad is provided on the side of the side plate close to the inner side wall of the installed pipe.

[0014] With the above structural design, anti-skid rubber pads are provided to increase the friction between the side panels and the pipe connection, thereby increasing the firmness of the connection of the inner support assembly.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The structure combines an internal support assembly, an annular fixing assembly, and a hand chain hoist to connect the installed pipe with the pipe to be installed. The installed pipe and the pipe to be installed are pulled closer by controlling the hand chain hoist, making operation simple and convenient. The hand chain hoist controls the pipe docking, improving installation accuracy. The internal support assembly and annular fixing assembly can be used for pipes of different diameters, increasing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the annular fixing assembly of the utility model;

[0019] Figure 3 It is a schematic diagram of the partial structure of the inner support assembly of the utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a large-diameter PCCP pipe internal pulling construction device, comprising an installed pipe 1 and a pipe to be installed 2, wherein an internal support assembly 6 is provided in the installed pipe 1, and the pipe mouth of the pipe to be installed 2 is fixedly connected with an annular fixing assembly 5, and a hand chain hoist 3 is provided between the internal support assembly 6 and the annular fixing assembly 5, and the two ends of the hand chain hoist 3 are connected to the internal support assembly 6 and the annular fixing assembly 5 through a pull rod 4. The length of the pull rod 4 is selected according to the size of the pipe, thereby increasing the applicability of the device. A structure combining the internal support assembly 6, the annular fixing assembly 5 and the hand chain hoist 3 is provided to connect the installed pipe 1 and the pipe to be installed 2, and the installed pipe 1 and the pipe to be installed 2 are pulled closer by controlling the hand chain hoist 3, which is simple and convenient to operate.

[0022] The annular fixing assembly 5 includes a fixing plate 501 and four telescopic rods 502 fixedly connected to the side ends of the fixing plate 501. The telescopic rods 502 are arranged equidistantly and are equipped with positioning bolts to control their length. A fastening mechanism 503 is mounted on the end of each telescopic rod 502 away from the fixing plate 501. The fastening mechanism 503 is capable of securing one end of the telescopic rod 502 to the nozzle of the pipe 2 to be installed. The fastening mechanism 503 secures the annular fixing assembly 5 to the nozzle of the pipe 2 to be installed, thereby securing the pipe and ensuring the stability of the pipe end support, preventing damage to the pipe.

[0023] The fastening mechanism 503 includes a U-shaped plate clamped on the pipe mouth of the pipe 2 to be installed, and one end of the U-shaped plate is threadedly connected to a fastening bolt 504. One end of the fastening bolt 504 passes through the U-shaped plate and abuts against the side wall of the pipe 2 to be installed.

[0024] The inner support assembly 6 includes a support column 601, which is hollow inside. Two sliding grooves 607 are symmetrically provided on the side wall of the support column 601 along the length direction. A movable ring 602 is sleeved on the support column 601, and a fixed plate 608 is fixedly connected to the movable ring 602. The fixed plate 608 is located inside the support column 601 and both ends of the fixed plate 608 pass through the sliding groove 607. An electric push rod 603 is installed at the end of the support column 601 away from the pull rod 4. The movable rod of the electric push rod 603 extends into the support column 601 and is fixedly connected to the fixed plate 608. The circumferential side of the movable ring 602 and one end of the support column 601 are equidistantly connected to a number of support rods 604 through a connecting seat. The two support rods 604 symmetrically arranged on the left and right are both rotatably connected to a side plate 605, and the side plate 605 abuts against the inner wall of the installed pipe 1. The movable ring 602 is moved on the support column 601 by the electric push rod 603, and the support rod 604 forms a tensioning mechanism inside the installed pipe 1 to support and fix the inside of the pipe, and the structure is stable.

[0025] The side of the side plate 605 close to the inner side wall of the installed pipe 1 is provided with an anti-skid rubber pad 606. The anti-skid rubber pad 606 increases the friction between the side plate 605 and the pipe connection, and increases the firmness of the connection of the inner support assembly 6.

[0026] Working principle: The staff first places the inner support assembly 6 inside the installed pipe 1, starts the electric push rod 603 to make the movable rod push the fixed plate 608, so that the movable ring 602 moves on the support column 601, and the support rod 604 forms a tensioning mechanism inside the installed pipe 1 to fix and support the inside of the pipe, and then fixes the annular fixing assembly 5 to the pipe mouth of the pipe to be installed 2 away from the end of the installed pipe 1 through the fastening mechanism 503, selects the length of the pull rod 4 according to the size of the pipe, connects the hooks at both ends of the hand hoist 3 with the two pull rods 4, and connects to the pipe to be installed 2 and the installed pipe 1 through the pull rod 4, starts the hand hoist, reels the chain, and makes the pipe to be installed 2 approach the installed pipe 1 and dock.

[0027] The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A large-diameter PCCP pipe inner pulling construction device, comprising an installed pipe (1) and a pipe to be installed (2), characterized in that: An internal support assembly (6) is provided in the installed pipe (1), an annular fixing assembly (5) is fixedly connected to the pipe mouth of the pipe (2) to be installed, a hand chain hoist (3) is provided between the internal support assembly (6) and the annular fixing assembly (5), and both ends of the hand chain hoist (3) are connected to the internal support assembly (6) and the annular fixing assembly (5) through a pull rod (4).

2. A large-diameter PCCP pipe inner pulling construction device according to claim 1, characterized in that: The annular fixing assembly (5) comprises a fixing plate (501) and a plurality of telescopic rods (502) fixedly connected to the side end of the fixing plate (501); a fastening mechanism (503) is installed at one end of the telescopic rod (502) away from the fixing plate (501); and the fastening mechanism (503) is capable of fixing one end of the telescopic rod (502) at the pipe mouth of the pipe (2) to be installed.

3. A large-diameter PCCP pipe inner pulling construction device according to claim 2, characterized in that: The fastening mechanism (503) comprises a U-shaped plate clamped on the pipe mouth of the pipe (2) to be installed, one end of the U-shaped plate is threadedly connected to a fastening bolt (504), and one end of the fastening bolt (504) passes through the U-shaped plate and abuts against the side wall of the pipe (2) to be installed.

4. The large-diameter PCCP pipe inner pulling construction device according to claim 1 is characterized in that: The inner support assembly (6) includes a support column (601), the support column (601) is hollow inside, and two slide grooves (607) are symmetrically provided on the side wall of the support column (601) along the length direction. A movable ring (602) is sleeved on the support column (601), and a fixed plate (608) is fixedly connected inside the movable ring (602). The fixed plate (608) is located inside the support column (601) and the two ends of the fixed plate (608) pass through the slide grooves (607). The support column (601) is away from the support column (601). An electric push rod (603) is installed at one end of the pull rod (4), and the movable rod of the electric push rod (603) extends into the support column (601) and is fixedly connected to the fixed plate (608). The peripheral side of the movable ring (602) and one end of the support column (601) are equidistantly connected to a plurality of support rods (604) through a connecting seat. The two support rods (604) symmetrically arranged on the left and right are both rotatably connected to a side plate (605), and the side plate (605) is in contact with the inner wall of the installed pipe (1).

5. The large-diameter PCCP pipe inner pulling construction device according to claim 4 is characterized in that: A non-slip rubber pad (606) is provided on one side of the side plate (605) close to the inner side wall of the installed pipe (1).

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