CN221160173U - PCCP pipeline internal pulling tool - Google Patents

Abstract

The utility model discloses a PCCP pipeline inner pulling tool, which comprises a stressed inner beam and two tension rods, wherein the stressed inner beam comprises an operation rod, two ends of the operation rod are respectively sleeved with a steel pipe, an inner hole at one end of the steel pipe is in threaded engagement with the corresponding end of the operation rod, the other end of the steel pipe is provided with an inner stress plate which is used for being attached to the end face of an inner joint of a pipe body, the outer side face of the steel pipe is provided with a connecting structure, and the two connecting structures are respectively connected with one end part of each tension rod. The tension rod adopts the stereoplasm pole, can restrict the rotation of steel pipe, makes the action bars with the steel pipe constitutes spiral transmission structure, through rotating the action bars, makes two interior atress boards be close to each other or keep away from each other, realizes adjusting simultaneously two interior atress board's position, thereby the regulation atress internal beam length that can be quick, and operating space is sufficient moreover, and the operation is very convenient, improves installation effectiveness greatly.

Description

PCCP pipeline internal pulling tool

Technical Field

The utility model relates to the technical field of PCCP installation, in particular to a PCCP pipeline internal pulling tool.

Background

PCCP (PRESTRESSED CONCRETE CYLINDER PIPE, prestressed steel cylinder concrete pipe) is a water pipe made by winding a circumferential prestressed steel wire on a high-strength concrete pipe core with a steel cylinder and spraying a compact cement mortar protection layer on the steel wire, and has excellent comprehensive performance and wide application range. For PCCP installation, an internal pulling method is often adopted, and the principle is that: and taking the inner seam of the PCCP to be assembled as an acting point, erecting a stressed inner beam, erecting a stressed outer beam on the outer end surface of the PCCP to be assembled, connecting the two beams by using a connecting rod piece, and then using a tool to pull the stressed inner beam and the stressed outer beam to finish the butt joint of the two sections of pipelines.

The specification of the Chinese patent CN209638532U discloses a pull-in installation device of a PCCP pipeline, which comprises an outer beam, an inner beam, a hydraulic device connected with the outer beam and the inner beam, a traveling trolley fixed below the outer beam and the inner beam, two sliding blocks I respectively connected with two ends of the outer beam in a sliding way, two sliding blocks II respectively connected with two ends of the inner beam in a sliding way, protruding plates extending out from two opposite sides of the two sliding blocks II respectively, and the two sliding blocks I and II can be matched and separated with the PCCP pipeline quickly during installation by manually moving the sliding blocks. However, in actual operation, each time the next pipe section is installed, the first sliding block and the second sliding block which retract or extend are required to be operated sequentially, the action is very complicated, the first sliding block and the second sliding block are both positioned at the end part of the beam, the operation space is limited for the stressed inner beam positioned in the pipe, the operation is inconvenient, and the installation efficiency is low.

Disclosure of utility model

The technical problem to be solved by the utility model is to provide the PCCP pipeline inner pulling tool, which can conveniently and rapidly adjust the retraction or extension of the two ends of the stressed inner beam at the same time, and improve the installation efficiency.

In order to solve the technical problem, the PCCP pipeline inner pulling tool comprises a stressed inner beam and two tension rods, wherein the stressed inner beam comprises an operation rod, two ends of the operation rod are respectively sleeved with a steel pipe, an inner hole at one end of the steel pipe is in threaded engagement with the corresponding end of the operation rod, an inner stress plate which is used for being attached to the inner seam end face of a tubular body is arranged at the other end of the steel pipe, a connecting structure is arranged on the outer side face of the steel pipe, and the two connecting structures are respectively connected with one end part of each tension rod.

In the PCCP pipeline internal pulling tool, the tension rod adopts a hard rod, and the other end is connected with a stressed outer beam and other structures, so that the rotation of the steel pipe can be limited, the operation rod and the steel pipe form a spiral transmission structure, the two internal stress plates are mutually close to or mutually far away through rotating the operation rod, and the positions of the two internal stress plates are adjusted simultaneously, so that the length of the stressed inner beam can be adjusted rapidly, the operation rod is rotated only in the middle of the stressed inner beam, the operation space is sufficient, the operation is very convenient, the matching or the separation of the stressed inner beam and a tubular body is completed rapidly, and the installation efficiency is greatly improved.

Further, the middle part of action bars is provided with first through-hole along radial, the inside of first through-hole is provided with the rotary rod, the diameter of rotary rod is less than first through-hole, the both ends of rotary rod are equipped with a dog respectively, make the rotary rod can not follow first through-hole internal slipping out.

Through the torsion leverage of the rotary rod and the characteristic of flexible sliding in the first through hole, the rotary operation can be performed on the operation rod of the cylindrical rod body conveniently and labor-saving by hand.

Further, the side surface of the inner stress plate, which is far away from the operating rod, is an arc-shaped surface. When PCCP pipeline lays, the internal joint end face of the pipe body is a circular ring face, so the outer side face of the internal stress plate is set to be an arc face, and the internal stress plate can be attached to the internal joint cylindrical side face of the pipe body, so that the internal stress plate and the internal joint end face have larger attaching area, the stress state is better when being pulled inwards, and the pipe body is not easy to damage.

Definition: the arc-shaped surface is an arc in a plane, and translates along a straight line perpendicular to the plane, and the surface is swept; the radius of the arc surface is the radius of the arc. Preferably, the radius of the arc-shaped surface of the inner stress plate is equal to the radius of the outer circle of the inner seam end surface of the assembled pipe body.

Further, the tension rod is formed by connecting a plurality of sections of rod bodies, and each section of rod body comprises a rod body, and a sub-connector and a female connector which are arranged at two ends of the rod body; the sub-connectors are in a shape of a gate hole, a second through hole is formed in the middle of an arched area of the plate body, and one side edge far away from the arched area is fixedly connected with the rod body; the female connector is in a plate shape with a U-shaped section, two side plates of the U-shaped plate body are all in a plate shape of a gate hole, and an arch area of the two U-shaped side plates is provided with a through third through hole, and the middle part of a bottom plate of the U-shaped plate body is fixedly connected with the rod body.

Preferably, when the female connector is installed in a pull-in mode, the main connector and the urban door cavity plate body of the female connector are horizontally arranged.

Further, the tension rod further comprises a connecting pin, and the connecting pin can penetrate through the second through hole and the third through hole to realize the plug connection of the sub-connector and the female connector. Preferably, the end part of the connecting pin is provided with an open pin hole for preventing the connecting pin from falling off.

The quick connection of the sub-connector and the main connector can be realized conveniently and quickly through the connecting pin, rod bodies with different numbers and different rod body lengths are connected with each other, and the installation of the pipe bodies with various length sizes can be met.

Furthermore, the connecting structure is the same as the structure of the sub-connector or the main connector, so that the fixed connection between the stressed inner beam and the tension rod can be realized quickly, and the dismounting is very convenient.

Furthermore, an electro-hydraulic internal pulling device is arranged in the middle of each tension rod, and tension is applied to enable the body to be assembled to move towards the assembled body, so that the assembly is realized.

Further, the PCCP pipeline inner pulling tool further comprises a stress outer beam, wherein the stress outer beam and the stress inner beam are the same in structure and are used for being attached to the outer end face of the pipe body to be assembled. The size of the stressed outer beam is different from that of the stressed inner beam, but the stressed outer beam has the same structure, and can realize rapid length adjustment, thereby improving the installation efficiency.

Further, the PCCP pipeline inner pulling tool further comprises three rack carts which are respectively arranged at the middle part and the two ends of the tension rod and used for providing support to enable the stressed inner beam and the stressed outer beam to be horizontally arranged along the radial direction of the pipe body and positioned at the central height of the pipe body. The movable support is provided by the trolley, so that the stressed inner beam, the stressed outer beam and the tension rod can be moved conveniently when the pipe body is switched and installed.

Further, the shelf vehicle comprises a top bracket, a vehicle body arranged at the bottom of the top bracket and wheels arranged on the vehicle body; the top bracket is of a frame structure with a horizontal top surface.

Through the support of top bracket top surface, can make atress internal beam and atress external beam radially and the level arrangement along the body, two tension rods horizontal interval arrangement keeps better internal pull gesture, improves installation quality.

In conclusion, by adopting the PCCP pipeline inner pulling tool, the matching or separation of the stressed inner beam and the stressed outer beam and the pipe body can be conveniently and rapidly completed during the installation and construction, and the installation efficiency is greatly improved.

Drawings

In the drawings:

FIG. 1 is a diagram of the stressed inner beam structure of the PCCP pipe inner pull tool of the present utility model.

Fig. 2 is a block diagram of the PCCP pipe internal pulling tool of the present utility model.

Fig. 3 is a top view of the rod structure of the PCCP pipe internal pulling tool of the present utility model.

Fig. 4 is a sectional view showing the structure of a rod of the PCCP pipe internal pulling tool of the present utility model.

Fig. 5 is a connection structure diagram of a sub-connector and a main connector of the PCCP pipe internal drawing tool of the present utility model.

Fig. 6 is a front view of a carriage for a PCCP pipe internal pulling tool according to the present utility model.

Fig. 7 is a side view of a carriage structure of the PCCP pipe internal pulling tool of the present utility model.

Fig. 8 is a rectangular frame construction diagram of the PCCP pipe internal pulling tool of the present utility model.

Reference numerals illustrate: 1. a stressed inner beam; 11. an operation lever; 111. a first through hole; 12. a steel pipe; 13. an inner force-bearing plate; 14. a connection structure; 151. a stop block; 15. a rotating rod; 2. a tension rod; 21. a shaft; 22. a sub-connector; 23. a female connector; 24. a second through hole; 25. a third through hole; 26. a connecting pin; 3. an electro-hydraulic pull-in device; 4. a stressed outer beam; 5. a shelf vehicle; 51. a top bracket; 511. a rectangular frame; 512. a cross beam; 52. a vehicle body; 521. an arc-shaped supporting frame; 522. a wheel support; 523. a brace rod; 53. a wheel; 6. a tubular body; 7. and (5) a tube body to be assembled.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model.

Figures 1-8 illustrate a PCCP pipe internal pulling tool of the present utility model. As shown in fig. 1 and 2, the PCCP pipeline internal pulling tool comprises a stressed internal beam 1 and two tension rods 2, wherein the stressed internal beam 1 comprises an operating rod 11, two ends of the operating rod 11 are respectively sleeved with a steel pipe 12, an inner hole at one end of the steel pipe 12 is in threaded engagement with a corresponding end of the operating rod 11, an internal stress plate 13 which is used for being attached to an internal seam end face of a tubular body 6 is arranged at the other end of the steel pipe 12, a connecting structure 14 is arranged on the outer side face of the steel pipe 12, and the two connecting structures 14 are respectively connected with the end parts of the tension rods 2.

Optionally, a first through hole 111 is radially disposed in the middle of the operating rod 11, a rotating rod 15 is disposed in the first through hole 111, the diameter of the rotating rod 15 is smaller than that of the first through hole 111, and two ends of the rotating rod 15 are respectively provided with a stop block 151, so that the rotating rod 15 cannot slide out from the first through hole 111.

The torsion leverage of the rotary lever 15 and the flexible sliding property in the first through hole 111 allow the manual and labor-saving rotary operation of the operation lever 11 of the cylindrical shaft 21.

Optionally, the side of the inner stress plate 13 away from the operating rod 11 is an arc surface. When PCCP pipeline lays, the internal joint end face of the tubular body 6 is a circular ring face, so the outer side face of the internal stress plate 13 is set to be an arc face, and the internal stress plate can be attached to the internal joint cylindrical side face of the tubular body 6, so that the internal stress plate 13 and the internal joint end face have larger attaching area, the stress state is better when being pulled inwards, and the tubular body is not easy to damage.

Alternatively, the tension rod 2 is formed by connecting a plurality of sections of rod bodies, as shown in fig. 3 and 4, each section of rod body comprises a rod body 21, and a sub-connector 22 and a main connector 23 which are arranged at two ends of the rod body 21; the sub-connector 22 is in a shape of a city gate, a second through hole 24 is arranged in the middle of the arched area of the plate body, and one side edge far away from the arched area is fixedly connected with the rod body 21; the female connector 23 is in a plate shape with a U-shaped section, two side plates of the U-shaped plate body are all in a plate shape with a gate hole, the arch area of the two U-shaped side plates is provided with a through third through hole 25, and the middle part of the bottom plate of the U-shaped plate body is fixedly connected with the rod body 21.

Optionally, when the pull-in installation is performed, the gate-shaped plate bodies of the sub-connector 22 and the main connector 23 are horizontally arranged.

Optionally, as shown in fig. 5, the tension rod 2 further includes a connection pin 26, where the connection pin 26 can pass through the second through hole 24 and the third through hole 25 to implement the latch connection between the sub-connector 22 and the main connector 23. Preferably, the end of the connecting pin 26 is provided with an open pin hole to prevent the connecting pin 26 from falling off.

The connecting pin 26 can conveniently and rapidly realize the quick connection between the sub-connector 22 and the main connector 23, and can connect rod bodies with different numbers and different lengths of the rod bodies 21 with each other, so as to meet the installation of the pipe bodies with various length sizes.

Optionally, the structure of the connecting structure 14 is the same as that of the sub-connector 22 or the main connector 23, so that the fixed connection between the stressed inner beam 1 and the tension rod 2 can be realized quickly, and the disassembly is very convenient.

Optionally, an electro-hydraulic internal pulling device 3 is arranged in the middle of each tension rod 2, and tension is applied to enable the to-be-assembled pipe 7 to move towards the assembled pipe 6, so that the installation is realized.

Optionally, the PCCP pipeline inner pulling tool further comprises a stress outer beam 4, wherein the stress outer beam 4 and the stress inner beam 1 have the same structure and are used for being attached to the outer end face of the pipe body 7 to be assembled. The size of the stressed outer beam 4 is different from that of the stressed inner beam 1, but the stressed outer beam is identical in structure, so that quick length adjustment can be realized, and the installation efficiency is improved.

Optionally, as shown in fig. 2, the PCCP pipeline internal pulling tool further includes three shelves 5 respectively disposed at the middle and two ends of the tension rod 2, for providing support to horizontally arrange the stressed inner beam 1 and the stressed outer beam 4 along the radial direction of the pipe body, and located at the central height of the inside of the pipe body. The trolley 5 provides movable support, and is convenient for moving the stressed inner beam 1, the stressed outer beam 4 and the tension rod 2 when the switching pipe body is installed. In addition, the forced inner beam 1 and the forced outer beam 4 are suspended and are convenient for the operation of rotating the operating rod 11.

Alternatively, as shown in fig. 6 to 8, the truck 5 includes a roof bracket 51, a body 52 provided at the bottom of the roof bracket 51, and wheels 53 provided on the body 52; the top bracket 51 is a frame structure with a horizontal top surface. The support of top bracket 51 top surface can make atress internal beam 1 and atress external beam 4 radially and the level arrangement of body, and two tension rods 2 level interval arrangement keep better internal drawing gesture, improves installation quality.

Alternatively, the top bracket 51 includes a rectangular frame 511 and a cross beam 512 provided in the rectangular frame 511, and when mounted by being pulled in, the long side of the rectangular frame 511 and one beam of the cross beam 512 are arranged in the horizontal radial direction of the pipe body, and the short side of the rectangular frame 511 and the other beam of the cross beam 512 are arranged in the axial direction of the pipe body.

The vehicle body 52 comprises two arc-shaped supporting frames 521 and two wheel brackets 522, wherein two ends of the arc-shaped supporting frames 521 are respectively fixed on two short sides of the rectangular frame 511, and are arranged at intervals along the axial direction of the pipe body when being pulled inwards, and the plane where the arc-shaped supporting frames 521 are positioned is on the cross section of the pipe body; a plurality of supporting rods 523 are arranged at the bottom between the two arc-shaped supporting frames 521, so that the structure of the vehicle body 52 is stable. The wheel support 522 is in an inverted V shape, the top corners of the V shape are respectively fixed at the midpoints of two long sides of the rectangular frame 511, the two sides of the V shape extend downwards to the bottom of the arc-shaped support 521 respectively, a wheel 53 is fixed, and the middle is fixedly connected with the arc-shaped support 521.

Since the wheels 53 are preferably placed on the smooth flat inner wall of the tube body while the ends of the tube body are generally stepped to form a gap during pull-in installation, in order for the top bracket 51 to smoothly support the inner and outer load beams 1 and 4, the top bracket 51 may extend beyond the body 52, and the extension may be placed on top of the ends of the tube body during pull-in installation to support the inner and outer load beams 1 and 4. Specifically, the length of the short side of the rectangular frame 511 is greater than the distance between the two arc-shaped supporting frames 521. A counterweight may be provided on the vehicle body 52 to prevent the truck 5 from tipping.

In addition, the stress inner beam 1 and the stress outer beam 4 may be directly placed on the rectangular frame 511 of the corresponding truck 5, or may be fixed on the rectangular frame 511 of the corresponding truck 5.

When the device is used, the operation rod 11 is rotated to adjust the stressed inner beam 1 and the stressed outer beam 4 to the state of minimum size, and then the stressed inner beam 1 and the stressed outer beam 4 are placed on the trolley 5, and the stressed inner beam 1 is aligned with the inner seam end face of the tubular body 6, and the stressed outer beam 4 is aligned with the outer end face of the tubular body 7; then, two tension rods 2 are correspondingly connected between the stressed inner beam 1 and the stressed outer beam 4 respectively by utilizing a connecting structure 14 to form a similar rectangular structure, and the electro-hydraulic inner pulling device 3 is installed; then the operating rod 11 is rotated to enable the inner stress plate 13 to move back, the size of the stress inner beam 1 is adjusted to be large, the stress inner beam is attached to the inner seam end face of the stress inner beam 1, the stress outer beam 4 is attached to the outer end face of the pipe body 7 to be assembled by the same operating method as an internal acting point; finally, the electro-hydraulic internal pulling device 3 is started to pull the pipe body 7 to be assembled, the pipe body is gradually adjusted to be in place to complete one-section pipe body installation, the whole tool position is moved, and the continuous installation can be realized by repeating the operation.

Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical aspects of the present utility model and not for limiting the scope thereof, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes, modifications or equivalents may be made to the specific embodiments of the present utility model after reading the present utility model, and these changes, modifications or equivalents are within the scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a PCCP pipeline internal pulling instrument, its characterized in that, including atress internal beam (1) and two tension rods (2), atress internal beam (1) include an action bars (11), the both ends of action bars (11) are overlapped respectively and are equipped with a steel pipe (12), the one end hole of steel pipe (12) with the corresponding end screw thread engagement of action bars (11), the other end of steel pipe (12) is provided with interior atress board (13) that are used for laminating with the interior seam terminal surface of the tubular body (6), be provided with connection structure (14) on the lateral surface of steel pipe (12), two connection structure (14) respectively with one tension rod (2) end connection.

2. The PCCP pipe internal pulling tool according to claim 1, wherein a first through hole (111) is provided in the middle of the operating rod (11) along a radial direction, a rotating rod (15) is provided in the first through hole (111), the diameter of the rotating rod (15) is smaller than that of the first through hole (111), and two ends of the rotating rod (15) are respectively provided with a stop block (151), so that the rotating rod (15) cannot slide out from the first through hole (111).

3. A PCCP pipe internal pulling tool as defined in claim 1, wherein the side of the internal force plate (13) remote from the operating lever (11) is an arcuate surface.

4. The PCCP pipeline internal pulling tool according to claim 1, wherein the pulling rod (2) is formed by connecting a plurality of sections of rod bodies, each section of rod body comprises a rod body (21), and a sub-connector (22) and a main connector (23) which are arranged at two ends of the rod body (21); the sub-connectors (22) are in a gate-shaped platy shape, a second through hole (24) is formed in the middle of an arched area of the plate body, and one side edge far away from the arched area is fixedly connected with the rod body (21); the female connector (23) is in a plate shape with a U-shaped section, two side plates of the U-shaped plate body are all in a plate shape with a gate hole, a third through hole (25) which is communicated is formed in an arch area of the two U-shaped side plates, and the middle part of the bottom plate of the U-shaped plate body is fixedly connected with the rod body (21).

5. The PCCP pipe internal pulling tool according to claim 4, characterized in that the pulling rod (2) further comprises a connecting pin (26), the connecting pin (26) being capable of penetrating the second through hole (24) and the third through hole (25) to realize the plug-in connection of the sub-connector (22) and the main connector (23).

6. The PCCP pipe internal drawing tool according to claim 4, wherein the connection structure (14) is the same as the structure of the sub-connector (22) or the main connector (23).

7. A PCCP pipe internal pulling tool according to claim 1, characterized in that the middle of each tension rod (2) is provided with an electro-hydraulic internal pulling device (3).

8. The PCCP pipeline inner pulling tool as claimed in claim 1, further comprising a stressed outer beam (4), wherein the stressed outer beam (4) has the same structure as the stressed inner beam (1) and is used for being attached to the outer end face of a pipe body (7) to be assembled.

9. The PCCP pipeline inner pulling tool as defined in claim 8, further comprising three shelf vehicles (5) respectively arranged at the middle part and the two ends of the tension rod (2) for providing support to horizontally arrange the stressed inner beam (1) and the stressed outer beam (4) along the radial direction of the pipe body and positioned at the central height of the inner part of the pipe body.

10. The PCCP pipe internal pulling tool according to claim 9, characterized in that the truck (5) includes a top bracket (51), a body (52) provided at the bottom of the top bracket (51), and wheels (53) provided on the body (52); the top bracket (51) is a frame structure with a horizontal top surface.