CN221922249U - Pipe threading device for pipes - Google Patents

Abstract

The utility model discloses a pipe threading device for pipes, comprising a pipe pushing assembly and an auxiliary pulley, the pipe pushing assembly comprising an end frame, the end frame being detachably mounted on the rear end of the pipe, the end frame being towed and moving from rear to front along the axial direction of the pipe to push the pipe forward, the auxiliary pulley being supported on the bottom surface of the pipe to assist the pipe in sliding forward; in the pipe threading device for pipes of the utility model, the towed end frame cooperates with the auxiliary pulley supported on the bottom of the pipe, so that the resistance during the pipe threading process is smaller, the pushing of the pipe is simpler, the construction difficulty is effectively reduced, the construction time is shortened, and the construction efficiency is improved.

Description

Pipe threading device for pipes

Technical Field

The utility model belongs to the technical field of building construction and relates to a pipe threading device for pipelines.

Background Art

In the field of long-distance heat supply, when a pipeline needs to cross a road, it is generally necessary to dig up the road first, install the casing and backfill it, and then push the thermal pipeline from one side of the casing until the thermal pipeline passes through the casing. The existing technology of crossing the casing construction is to gradually push the thermal pipeline by manpower or install a hydraulic device, but most of the thermal pipelines used for long-distance heat supply are heavy and long, so it is very difficult to push the pipeline into the casing by manual labor and light machinery. In addition, as the length of the thermal pipeline is pushed in, the weight of the pipeline also gradually increases, and the required thrust also increases accordingly. This leads to the difficulty of construction, long construction time and low construction efficiency when the pipeline crosses the casing, which in turn leads to an increase in construction costs and a decrease in economic benefits.

In order to solve the above problems, a construction tool for pipeline crossing casing construction is needed to reduce the construction difficulty and improve the construction efficiency.

Utility Model Content

In view of this, the utility model provides a pipe threading device for pipes, in which the towed end frame cooperates with the auxiliary pulley supported at the bottom of the pipe, so that the resistance during the pipe threading process is smaller and the pushing of the pipe is simpler, which effectively reduces the construction difficulty, shortens the construction time, and improves the construction efficiency.

A pipe threading device for a pipeline comprises a pipe pushing assembly and an auxiliary pulley. The pipe pushing assembly comprises an end frame which is detachably mounted on the rear end of the pipeline. The end frame can be towed to move from rear to front along the axial direction of the pipeline to push the pipeline forward. The auxiliary pulley is supported on the bottom surface of the pipeline to assist the pipeline in sliding forward.

Furthermore, the push tube assembly also includes a driving device and a traction rope, at least two auxiliary ropes are provided at the end of the traction rope, and the end frame is provided with at least two hanging points. One end of the traction rope is connected to the driving device, and the other end is respectively connected to the two hanging points of the end frame through two auxiliary ropes. The driving device pulls the end frame through the traction rope.

Furthermore, the auxiliary pulley includes a frame, a support plate and an auxiliary arm group, the frame is equipped with walking wheels, the support plate is installed on the frame in a manner that can be driven to rise and fall in the vertical direction, the auxiliary arm group includes two symmetrically arranged auxiliary support arms, the top of the auxiliary support arms is equipped with auxiliary wheels, the support plate can be driven to rise to support the bottom surface of the pipe, or the support plate can be driven to fall so that the auxiliary wheels are supported on the bottom surface of the pipe.

Furthermore, the push pipe assembly also includes a column, and two columns are provided. The two columns are respectively arranged on both sides of the radial direction of the pipeline. Any of the columns is installed with a fixed pulley, and the two auxiliary ropes are respectively connected to the hanging point of the end frame after passing around the two fixed pulleys.

Furthermore, the end frame is a four-sided pyramid frame structure composed of multiple skeletons, the bottom surface of the end frame is square, and multiple hanging points are evenly arranged on the bottom surface of the end frame along the circumferential direction; the end frame is detachably installed on the rear end of the pipeline in a manner that the cone top is inserted into the pipeline.

Furthermore, the auxiliary support arm includes a lower arm and an upper arm connected to each other, the lower arm is vertically installed on the frame, the upper arm is obliquely installed on the top of the lower arm, and the auxiliary wheel is rotatably installed on the top of the upper arm, and the rotation direction of the auxiliary wheel is the same as or opposite to the forward direction of the pipeline.

Furthermore, the bottom of the upper arm is connected to the top of the lower arm, the top of the upper arm is inclined toward the direction close to the pipeline, and the bottom of the upper arm is inclined toward the direction away from the pipeline; the extension line of the central axis of the upper arm intersects with the central axis of the pipeline.

Furthermore, the frame is a rectangular grid structure, and a plurality of auxiliary arm groups are evenly arranged on the frame along the axial direction of the pipeline.

Furthermore, the auxiliary pulley also includes a telescopic rod, and the support plate is installed on the frame through the telescopic rod. The top surface of the support plate is an arc surface that conforms to the surface of the pipe. The position of the support plate corresponding to the auxiliary support arm is provided with an avoidance opening for avoiding the auxiliary wheel; the auxiliary pulley is provided with multiple ones from front to rear along the axial direction of the pipe.

Beneficial effects of the utility model:

The utility model discloses a pipe threading device for pipelines. The towed end frame cooperates with the auxiliary pulley supported at the bottom of the pipeline, so that the resistance during the pipe threading process is smaller and the pushing of the pipeline is simpler; two auxiliary ropes are used to connect the end frame for traction, and the force on the end frame is more uniform and reasonable. In addition, the end frame with a conical structure makes the force on the pipeline more uniform, so that the pipeline can enter the casing smoothly, the advancement is more stable, and the pipe mouth will not be deformed, which greatly reduces the project cost; after the pipe threading is completed, the auxiliary pulley can lower the support plate, and use the auxiliary arm group to support the pipeline, which is more conducive to the recovery of the auxiliary pulley stranded in the middle of the casing. The setting of the fixed pulley can change the direction of the traction force, so that the traction equipment is not restricted by conditions such as terrain, and the selection range is wider. The utility model has the advantages of simple operation and convenient use, effectively reduces the construction difficulty, shortens the construction time, improves the construction efficiency, and thus reduces the construction cost and improves the economic benefit. Moreover, the use conditions of the pipe threading device for pipelines of the utility model are not restricted, and can be widely used in the laying of casings such as water supply and drainage, gas pipelines, etc.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the main structure of the utility model;

FIG2 is a schematic diagram of the structure of the utility model from the left;

FIG3 is a front view of the auxiliary pulley of the utility model;

FIG4 is a left side view of the auxiliary pulley of the utility model;

FIG5 is a top view of the auxiliary pulley of the utility model;

Fig. 6 is a cross-sectional view at A-A in Fig. 3;

Fig. 7 is a cross-sectional view of the B-B portion in Fig. 5 when the support plate is raised;

Fig. 8 is a cross-sectional view of the B-B portion in Fig. 5 when the support plate is lowered;

FIG9 is a front view of the end frame of the utility model;

FIG. 10 is a top view of the end frame of the present invention.

DETAILED DESCRIPTION

It should be noted that in the description of this specification, the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In this embodiment, it is stipulated that the forward direction when the pipeline is passed through the pipe is the front.

As shown in the figure, the embodiment of the utility model discloses a pipe threading device for a pipe 5, including a pipe pushing assembly and an auxiliary pulley 1, wherein the pipe pushing assembly includes an end frame 2, wherein the end frame 2 is detachably mounted on the rear end of the pipe 5, and the end frame 2 can be towed to move from rear to front along the axial direction of the pipe 5 to push the pipe 5 forward, and the auxiliary pulley 1 is supported on the bottom surface of the pipe 5 to assist the pipe 5 in sliding forward. The towed end frame 2 cooperates with the auxiliary pulley 1 supported on the bottom of the pipe 5, so that the resistance of the pipe 5 during the pipe threading process is smaller, and the pushing of the pipe 5 is simpler.

In this embodiment, the push tube assembly further includes a driving device and a traction rope 7, at least two auxiliary ropes 701 are provided at the end of the traction rope 7, and the end frame 2 is provided with at least two hanging points 201, one end of the traction rope 7 is connected to the driving device, and the other end is respectively connected to the two hanging points 201 of the end frame 2 through two auxiliary ropes 701, and the driving device pulls the end frame 2 through the traction rope 7. In this embodiment, the push tube assembly further includes a column 3, two of which are provided, and the two columns 3 are respectively and correspondingly arranged on both sides of the radial direction of the pipeline 5, and any of the columns 3 is installed with a fixed pulley 4, and the two auxiliary ropes 701 are respectively and correspondingly connected to the hanging points 201 of the end frame 2 after passing through the two fixed pulleys 4. In this embodiment, the column 3 is fixedly buried in the tunnel at the location of the pipe penetration construction, and it is best to drive it into the bedrock, and the column 3 is set close to the entrance of the casing 6; the traction rope 7 is a steel wire rope, and one end of the traction rope 7 is divided into two, forming two auxiliary ropes 701, and the two auxiliary ropes 701 are respectively passed around two pulleys and then connected to the hanging point 201 of the end frame 2, so that no matter where the driving device is pulled, the end frame 2 is subjected to axial forward traction. The traction device in this embodiment is a crane, and the upward pulling force of the crane can be converted into traction force on the end frame 2. The force on the end frame 2 is more uniform and reasonable, so that the force on the pipeline 5 is also more uniform, so that the pipeline 5 can enter the casing 6 smoothly, and the advancement is more stable. The traction device can also use common pulling equipment such as a winch according to the actual terrain.

In this embodiment, the auxiliary pulley 1 includes a frame 13, a support plate 11 and an auxiliary arm group, the frame 13 is equipped with a walking wheel 14, the support plate 11 is installed on the frame 13 in a manner that can be driven to rise and fall in the vertical direction, the auxiliary arm group includes two auxiliary support arms 9 that are symmetrically arranged, and an auxiliary wheel 10 is installed on the top of the auxiliary support arm 9. The support plate 11 can be driven to rise to support the bottom surface of the pipeline 5, or the support plate 11 can be driven to fall so that the auxiliary wheel 10 is supported on the bottom surface of the pipeline 5. In this embodiment, the auxiliary support arm 9 includes a lower boom 901 and an upper boom 902 that are connected to each other, the lower boom 901 is vertically installed on the frame 13, the upper boom 902 is obliquely installed on the top of the lower boom 901, and the auxiliary wheel 10 is rotatably installed on the top of the upper boom 902, and the rotation direction of the auxiliary wheel 10 is the same as or opposite to the forward direction of the pipeline 5. In this embodiment, the bottom of the upper arm 902 is connected to the top of the lower arm 901, the top of the upper arm 902 is inclined toward the direction close to the pipeline 5, and the bottom of the upper arm 902 is inclined toward the direction away from the pipeline 5; the extension line of the central axis of the upper arm 902 intersects with the central axis of the pipeline 5. In this embodiment, the auxiliary pulley 1 also includes a telescopic rod 12, and the support plate 11 is installed on the frame 13 through the telescopic rod 12. The top surface of the support plate 11 is an arc surface conforming to the surface of the pipeline 5. The support plate 11 is provided with an avoidance opening 15 for avoiding the auxiliary wheel 10 at the position corresponding to the auxiliary support arm 9; the auxiliary pulley 1 is provided with multiple ones from front to back along the axial direction of the pipeline 5. When the casing 6 is being crossed, since the thermal pipe 5 is long, or the casing 6 to be crossed is long, it is necessary to add an auxiliary pulley 1 as the pipe 5 advances. After the pipe 5 is crossed, the auxiliary pulley 1 will be stranded in the casing 6. In order to control the cost, the support plate 11 of the trolley is designed to be liftable. When the pipe is passed, the support plate 11 is raised, and the auxiliary wheel 10 is hidden under the support plate 11, as shown in Figure 7, and the top surface of the support plate 11 is conformally fitted to the bottom surface of the pipe 5, which can support and assist the pipe 5 to advance; after the pipe is passed, the support plate 11 is lowered, so that the auxiliary wheel 10 is exposed and supported at the bottom of the pipe 5, and it can be pulled out of the casing 6 to realize the recovery of the trolley. The telescopic rod 12 in this embodiment is preferably a hydraulic remote-controlled telescopic rod 12, which has a strong bearing capacity and is easy to control. The extension line of the central axis of the upper arm 902 intersects with the central axis of the pipeline 5. Under this structure, the pressure of the pipeline 5 can be smoothly transmitted to the frame 13 through the auxiliary support arm 9, which effectively improves the bearing capacity of the auxiliary support arm 9. The specific number of auxiliary pulleys 1 can be adjusted according to the length of the pipeline 5 or the sleeve 6. The rotation direction of the auxiliary wheel 10 is preferably bidirectional, so that it is easy to recycle according to actual conditions. Of course, unidirectional rotation is also possible; the avoidance opening 15 is to avoid the auxiliary wheel 10 during the lifting and lowering of the support plate 11.

In this embodiment, the end frame 2 is a tetrahedral pyramid frame structure composed of multiple skeletons. The bottom surface of the end frame 2 is square, and multiple hanging points 201 are evenly arranged on the bottom surface of the end frame 2 along the circumferential direction; the end frame 2 is detachably installed on the rear end of the pipe 5 in a manner that the top of the cone is inserted into the pipe 5. As shown in the figure, the end frame 2 is a tetrahedral prism frame structure supported by materials such as steel bars or flat irons through welding. This structure further ensures that the force on the pipe 5 is uniform, so that the pipe 5 can enter the casing 6 smoothly, the advancement is more stable, and the pipe mouth will not be deformed, which greatly reduces the project cost. The hanging point 201 in this embodiment is a hook, and a horseshoe buckle can also be used. There are four hanging points 201, which are distributed at the four top corners of the bottom surface of the end frame 2, as shown in Figure 10.

In this embodiment, the frame 13 is a rectangular grid structure, and the frame 13 is evenly provided with multiple auxiliary arm groups along the axial direction of the pipe 5. In this embodiment, there are two auxiliary arm groups, and the grid-shaped frame 13 can ensure the load-bearing strength of the vehicle body while reducing the weight of the vehicle body.

The embodiment of the utility model will further explain the aforementioned pipe penetration device for pipes in combination with the construction method of pipe penetration casing, and the construction method is specifically divided into the following steps:

S1. According to the diameter of the casing 6 and the diameter of the pipe 5 to be penetrated, the end frame 2 is manufactured by welding. Flat steel and hooks are used on site to manufacture the end frame 2 by welding, wherein the length of the diagonal line of the bottom surface of the end frame 2 should be greater than the diameter of the pipe 5, and the depth of the end frame 2 inserted into the pipe 5 should not be less than one third of the height of the end frame 2.

Before the pipe penetration construction is carried out, the ground 8 needs to be dug up first and the casing 6 needs to be pre-buried in place. This is a conventional technical method in this technical field, so it will not be repeated. This method mainly focuses on how to advance the pipeline 5.

S2, after fixing the column 3, first place the first auxiliary pulley 1 at the entrance of the casing 6, then connect the end of the traction rope 7 without the auxiliary rope 701 to the traction device, and the auxiliary rope 701 of the traction rope 7 is connected to the hanging point 201 of the end frame 2. The traction device of this embodiment is a crane, and the hook of the crane is located above the axial direction of the pipeline 5 and is located in the same vertical plane as the two fixed pulleys 4.

S3, hoist the pipe 5 to be threaded to the entrance position of the casing 6, place the front frame 2 of the pipe 5 on the support plate 11 of the auxiliary pulley 1, and then plug the end frame 2 into the end of the pipe 5;

S4, start the traction device, pull the pipeline 5 forward through the traction rope 7, and as the pipeline 5 moves forward, add an auxiliary pulley 1 to the bottom of the pipeline 5 at each set interval; use a crane to pull the traction rope 7 at a constant speed, so that the pipeline 5 can move forward at a constant speed.

S5, after the pipe 5 is threaded, the support plate 11 is lowered, the auxiliary wheel 10 is supported on the pipe 5, and the auxiliary pulley 1 is pulled out. Before placing the trolley, a rope can be tied to the frame 13, and after the pipe is threaded, the auxiliary pulley 1 is pulled out by the rope to realize the recovery of the auxiliary pulley 1.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims (8)

1. A pipe threading device for a pipe, characterized by: the device comprises a push tube assembly and an auxiliary pulley, wherein the push tube assembly comprises an end frame, the end frame is detachably arranged at the rear end of a pipeline, and the end frame can be pulled to move forwards from back to front along the axial direction of the pipeline so as to push the pipeline to advance; the auxiliary pulley comprises a frame, a supporting plate and an auxiliary arm group, wherein the frame is provided with travelling wheels, the supporting plate is arranged on the frame in a mode that the supporting plate can be driven to rise and fall in the vertical direction, the auxiliary arm group comprises two auxiliary supporting arms which are symmetrically arranged, the top of each auxiliary supporting arm is provided with an auxiliary wheel, the supporting plate can be driven to rise to be supported on the bottom surface of a pipeline, or the supporting plate can be driven to descend to enable the auxiliary wheels to be supported on the bottom surface of the pipeline.

2. A tube threading device for a pipeline according to claim 1 wherein: the push tube assembly further comprises a driving device and a traction rope, at least two auxiliary ropes are arranged at the end parts of the traction rope, at least two hanging points are arranged on the end frame, one end of the traction rope is connected to the driving device, the other end of the traction rope is connected to the two hanging points of the end frame through the two auxiliary ropes, and the driving device pulls the end frame through the traction rope.

3. A tube threading device for a pipeline according to claim 2 wherein: the push tube assembly further comprises two stand columns, the two stand columns are respectively and correspondingly arranged on two radial sides of the pipeline, any fixed pulleys are respectively arranged on the stand columns, and the two auxiliary ropes are respectively and correspondingly connected with hanging points of the end frames after bypassing the two fixed pulleys.

4. A tube threading device for a pipeline according to claim 2 wherein: the end frame is of a quadrangular pyramid frame structure formed by a plurality of skeletons, the bottom surface of the end frame is square, and a plurality of hanging points are uniformly arranged on the bottom surface of the end frame along the circumferential direction; the end frame is detachably arranged at the rear end of the pipeline in a mode that the cone top is inserted into the pipeline.

5. A tube threading device for a pipeline according to claim 1 wherein: the auxiliary support arm comprises a lower big arm and an upper big arm which are connected with each other, the lower big arm is vertically arranged on the frame, the upper big arm is obliquely arranged at the top of the lower big arm, the auxiliary wheel is rotatably arranged at the top of the upper big arm, and the rotation direction of the auxiliary wheel is the same as or opposite to the advancing direction of the pipeline.

6. A tube penetrating apparatus for a pipe according to claim 5, wherein: the bottom of the upper big arm is connected with the top of the lower big arm, the top of the upper big arm is inclined towards the direction close to the pipeline, and the bottom of the upper big arm is inclined towards the direction far away from the pipeline; an extension line of the central axis of the upper large arm is intersected with the central axis of the pipeline.

7. A tube threading device for a pipeline according to claim 1 wherein: the frame is rectangular grid-shaped structure, and the frame is provided with a plurality of groups of auxiliary arm groups along the axial direction of the pipeline.

8. A tube threading device for a pipeline according to claim 1 wherein: the auxiliary pulley further comprises a telescopic rod, the supporting plate is arranged on the frame through the telescopic rod, the top surface of the supporting plate is a cambered surface which is in shape with the surface of the pipeline, and an avoidance opening for avoiding the auxiliary wheel is formed in the position, corresponding to the auxiliary supporting arm, of the supporting plate; the auxiliary pulleys are arranged in a plurality from front to back along the axial direction of the pipeline.