Pipeline back-dragging fixing device

Abstract

The utility model discloses a pipeline back-dragging fixing device, which relates to the technical field of pipeline construction and comprises a reaming part, a fixing seat and a fixing component, and the fixing base is connected with the reaming part, a plurality of fixing assemblies are arranged on the side, away from the reaming part, of the fixing base, a pipeline to be pulled back can be inserted into the fixing assemblies, and the inserted pipeline is fixedly clamped. When the pipeline needs to be dragged back, only the pipeline needs to be inserted into the fixing assembly on the fixing base, and then the pipeline is dragged along a channel opened up by the reaming piece under the traction of external force; in this way, the pipeline can be fixed only by inserting the fixing assembly, convenience and rapidness are achieved, and in this way, other fasteners are not needed, and the pipeline is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to a pipeline pulling back fixing device. Background Art

[0002] In pipeline construction, directional drilling technology (referring to machinery that lays pipelines without excavating the ground surface) is widely used due to its advantages such as small impact on the ground and high construction efficiency. However, during the directional drilling pipeline pullback process, due to the influence of soil conditions, pipeline materials, construction environment and other factors, the pipeline is prone to sliding, offset and other problems, which not only affects the accuracy and quality of pipeline construction, but may also cause safety accidents. Therefore, it is necessary to connect the pipeline to the reamer through a fixing device.

[0003] Traditional methods of fixing pipes by pulling them back usually use simple materials such as sandbags and wooden wedges, but these methods have disadvantages such as weak fixing and easy damage to the pipes. At the same time, although some complex fixing devices can provide better fixing effects, they are often complex in structure and expensive, which is not conducive to promotion and application.

[0004] Therefore, how to provide a fixing device that is convenient and quick for fixing a pipeline and is not easily damaged is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] The utility model aims to provide a fixing device which is convenient and quick in fixing a pipeline and is not easily damaged.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pipeline pulling back fixing device, comprising:

[0008] The expansion piece has a spindle-shaped structure;

[0009] The fixing seat is connected with the hole expanding piece. A plurality of fixing components are arranged on the side of the fixing seat away from the hole expanding piece. The pipe to be pulled back can be inserted into the fixing component and the inserted pipe can be fixedly connected.

[0010] Preferably, a first connecting rod for connecting to a traction device is provided at one end of the expansion member along its axis, a second connecting rod is fixedly provided at the end of the expansion member away from the first connecting rod, and a connecting main ring is fixedly provided at the end of the second connecting rod.

[0011] Preferably, the fixing seat is in a cone structure as a whole, and the bottom diameter of the fixing seat is smaller than the maximum cross-sectional diameter of the expansion member perpendicular to its axis.

[0012] Preferably, a third connecting rod is provided at the end of the fixing seat close to the hole expanding member, and a connecting sub-ring for connecting to the connecting main ring is provided at the end of the third connecting rod.

[0013] Preferably, the fixing assembly comprises:

[0014] The sleeve is a cylindrical structure, which is vertically arranged on the bottom surface of the fixed seat and is used for sleeve connection of the pipeline;

[0015] The first clamping structure is arranged inside the sleeve and is used to fix the pipe inserted into the sleeve.

[0016] Preferably, the first clamping structure comprises:

[0017] A set of limit plates, including two limit plates symmetrically arranged, the limit plates being rotatably arranged on the inner wall of the sleeve;

[0018] A convex plate is fixedly arranged on a side opposite to the limiting plate;

[0019] The first spring is arranged between the inner wall of the sleeve and the side opposite to the limiting plate, and the first spring has a tendency to make the limiting plate rotate toward the axis direction of the sleeve.

[0020] Preferably, the fixing assembly further comprises a second clamping structure arranged outside the sleeve, and the second clamping structure comprises:

[0021] A side plate is arranged on the outer peripheral surface of the sleeve through a second spring, and the second spring has a tendency to make the side plate close to the sleeve;

[0022] Two limit rods are symmetrically arranged on one side of the side plate close to the sleeve and are respectively located at two ends of the side plate. The limit rods penetrate the side plate and extend into the interior of the sleeve.

[0023] Preferably, a plurality of groups of first clamping structures are provided inside the sleeve, and a pair of second clamping structures are symmetrically provided outside the sleeve.

[0024] Preferably, the convex plate is made of rubber.

[0025] Preferably, a pressure sensor is provided at the end of the sleeve near the fixing seat to detect whether the pipe in the sleeve is installed in place, and an alarm connected to the pressure sensor is provided outside the fixing seat to sound an alarm when the pipe is not installed in place.

[0026] Compared with the above-mentioned background technology, the utility model provides a pipe pulling back and fixing device, including: a hole expanding piece, a fixing seat and a fixing assembly. The hole expanding piece is a spindle-shaped structure; the fixing seat is connected to the hole expanding piece, and a plurality of fixing assemblies are provided on the side of the fixing seat away from the hole expanding piece. The pipe to be pulled back can be inserted into the fixing assembly and the inserted pipe can be fixed and clamped.

[0027] That is to say, when it is necessary to drag the pipeline back, it is only necessary to insert the pipeline into the fixing assembly on the fixing seat, and then drag it along the channel opened by the expansion piece under the traction of external force; in this way, the pipeline only needs to be inserted into the fixing assembly to complete the fixation, which is convenient and quick, and there is no need to use other fasteners to prevent them from damaging the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] FIG1 is a schematic diagram of the overall structure of a pipeline pulling back and fixing device provided in an embodiment of the utility model;

[0030] FIG2 is a schematic diagram of the structure of the hole expansion member provided in an embodiment of the utility model;

[0031] FIG3 is a schematic diagram of the structure of the fixing base provided in an embodiment of the utility model;

[0032] FIG4 is a schematic diagram of the structure of a fixing assembly provided in an embodiment of the present utility model;

[0033] FIG5 is a schematic diagram of the structure of FIG4 from another angle;

[0034] FIG. 6 is a schematic diagram of the internal structure of the fixing assembly provided in an embodiment of the present utility model.

[0035] in:

[0036] 100 - hole expansion member, 110 - first connecting rod, 120 - second connecting rod, 130 - connecting main ring;

[0037] 200-fixed seat, 210-third connecting rod, 220-connecting secondary ring;

[0038] 300 -fixing assembly, 310 -sleeve, 321 -limiting plate, 322 -convex plate, 323 -first spring 331 -side plate, 332 -second spring, 333 -limiting rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have specific directions, be constructed and operate in specific directions, and therefore should not be understood as limitations of the present invention.

[0042] The utility model aims to provide a fixing device which is convenient and quick in fixing a pipeline and is not easily damaged.

[0043] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0044] Please refer to Figure 1. This embodiment provides a pipe pulling back and fixing device, including: a hole expanding piece 100, a fixing seat 200 and a fixing assembly 300. The hole expanding piece 100 is a spindle-shaped structure; the fixing seat 200 is connected to the hole expanding piece 100, and a plurality of fixing assemblies 300 are provided on the side of the fixing seat 200 away from the hole expanding piece 100. The pipe to be pulled back can be inserted into the fixing assembly 300 and the inserted pipe can be fixedly connected.

[0045] Specifically, the pipe pulling back fixing device provided in the embodiment of the present application can be fixedly connected to the pipe to be pulled back through the fixing component 300 on the fixing seat 200, and the reaming piece 100 connected to the external traction device is connected to the fixing seat 200, and the reaming piece 100 is driven to move in the ground under the action of the external traction force to open up a channel for installing the pipe. The fixing seat 200 connected to the reaming piece 100 will drive the pipe to move as the reaming piece 100 moves, so that the pipe can be dragged to a preset position.

[0046] In order to better play the role of opening up a channel, the reamer 100 is generally configured as a spindle-shaped structure, that is, a structure in which two identical cone bottom surfaces are fitted together, and the diameter of the middle cone bottom surface is the maximum diameter of the reamer 100, that is, the diameter of the expanded channel; in addition, in order to be able to drag multiple pipes at the same time, a number of fixing components 300 are arranged on the bottom surface of the fixing seat 200.

[0047] That is to say, when it is necessary to drag the pipeline back, it is only necessary to insert the pipeline into the fixing assembly 300 on the fixing seat 200, and then drag it along the channel opened by the expansion piece 100 under the traction of external force; in this way, the pipeline only needs to be inserted into the fixing assembly 300 to complete the fixation, which is convenient and quick, and there is no need to use other fasteners to prevent them from damaging the pipeline.

[0048] Preferably, the reamer 100 is provided with a first connecting rod 110 for connecting the traction device at one end along its axis, and a second connecting rod 120 is fixedly provided at the end of the reamer 100 away from the first connecting rod 110, and a connecting main ring 130 is fixedly provided at the end of the second connecting rod 120.

[0049] Specifically, as shown in Figure 2, the reamer 100 is provided with a first connecting rod 110 and a second connecting rod 120 at its two end positions, respectively, and the axes of the first connecting rod 110 and the second connecting rod 120 coincide with the axis of the reamer 100, wherein the first connecting rod 110 is used to connect to an external traction device to transmit power to the reamer 100, and then pull the pipe connected to the fixing seat 200, and the second connecting rod 120 is used to connect to the fixing seat 200. In order to make the connection between the reamer 100 and the fixing member more flexible and the structure simpler, a connecting main ring 130 is provided at the end of the second connecting rod 120.

[0050] Preferably, the fixing seat 200 is in a cone structure as a whole, and the bottom diameter of the fixing seat 200 is smaller than the maximum cross-sectional diameter of the expansion member 100 perpendicular to its axis.

[0051] In this embodiment, the fixing seat 200 is preferably a conical structure, and the top of the cone faces the reamer 100, as shown in Figure 3; in addition, it can be understood that in order to enable the fixing seat 200 and the pipe pulled by it to pass smoothly through the channel opened by the reamer 100, the diameter of the bottom surface of the fixing seat 200, that is, the maximum diameter of the fixing seat 200, should be smaller than the maximum cross-sectional diameter of the reamer 100 perpendicular to its axis. Such an arrangement can smoothly pull the pipe back.

[0052] Preferably, a third connecting rod 210 is provided at the end of the fixing seat 200 close to the reamer 100 , and a connecting sub-ring 220 for connecting to the connecting main ring 130 is provided at the end of the third connecting rod 210 .

[0053] As shown in Figure 3, a third connecting rod 210 is provided at the conical top of the fixing seat 200, that is, the end close to the reaming piece 100, and a connecting sub-ring 220 is provided at the end of the third connecting rod 210. The connecting sub-ring 220 can cooperate with the connecting main ring 130 on the reaming piece 100 to form a stable connection relationship. This connection method has a simple structure and a firm connection, and will not limit the positional relationship between the reaming piece 100 and the fixing seat 200.

[0054] Preferably, the fixing assembly 300 includes: a sleeve 310 and a first clamping structure; the sleeve 310 is a cylindrical structure, vertically arranged on the bottom surface of the fixing seat 200, and the sleeve 310 is used to sleeve the pipeline; the first clamping structure is arranged inside the sleeve 310, and is used to fix the pipeline inserted into the sleeve 310.

[0055] In this embodiment, the fixing component 300 is arranged on the bottom surface of the fixing seat 200, that is, the bottom surface of the conical structure. The fixing component 300 includes a sleeve 310 and a first clamping structure. The sleeve 310 is a tubular structure, which is vertically fixed on the bottom surface of the fixing seat 200. The pipe to be pulled back will be inserted into the sleeve 310; a first clamping structure is provided inside the sleeve 310, and the first clamping structure can clamp and fix the pipe inserted into the sleeve 310, so that the expansion member 100 drives the fixing seat 200 to move, and then drives the pipe to move; such a setting can avoid the pipe being connected to the traction device through bolts, and the connection of the pipe can be completed quickly without damaging the pipe.

[0056] Preferably, the first clamping structure includes: a group of limit plates 321, a protruding plate 322 and a first spring 323; a group of limit plates 321, including two symmetrically arranged limit plates 321, the limit plates 321 are rotatably arranged on the inner wall of the sleeve 310; the protruding plate 322 is fixed on the side opposite to the limit plate 321; the first spring 323 is arranged between the inner wall of the sleeve 310 and the side opposite to the limit plate 321, and the first spring 323 has a tendency to rotate the limit plate 321 toward the axis direction of the sleeve 310.

[0057] As shown in Figures 4 to 5, the first clamping structure includes a limit plate 321 symmetrically arranged on the inner wall of the sleeve 310, and the limit plate 321 is rotatably connected to the inner wall of the sleeve 310. In this embodiment, the limit plate 321 and the inner wall of the sleeve 310 are preferably hinged, and a convex plate 322 is provided on the side opposite to the limit plate 321, that is, the side close to the axis of the sleeve 310, and the surface of the convex plate 322 is provided with uneven grooves. A first spring 323 is provided at the end of the limit plate 321 away from the hinge, and the first spring 323 is respectively arranged between the side of the limit plate 321 away from the convex plate 322 and the sleeve 310. It should be noted that the first spring 323 is always in a compressed state, that is, the first spring 323 always has a tendency to rotate the limit plate 321 toward the axis of the sleeve 310.

[0058] That is to say, one end of the pipe is inserted into the hole inside the sleeve 310, and the limit plate 321 is squeezed by the pipe to make the limit plate 321 rotate inside the sleeve 310, so that the limit plate 321 compresses the first spring 323, and the first spring 323 generates a reverse force, so that the first spring 323 pushes the limit plate 321, so that one side of the limit plate 321 presses against the pipe inside the connecting hole, so that the pipe and the sleeve 310 are automatically connected, and when the limit plate 321 presses against the pipe, the friction with the pipe is increased by the groove on the convex plate 322, so that the pipe and the sleeve 310 are more tightly connected after being connected.

[0059] Preferably, the fixing assembly 300 also includes a second clamping structure arranged on the outside of the sleeve 310, and the second clamping structure includes: a side plate 331 and two limit rods 333; the side plate 331 is arranged on the outer peripheral surface of the sleeve 310 through a second spring 332, and the second spring 332 has a tendency to make the side plate 331 close to the sleeve 310; two limit rods 333, the limit rods 333 are symmetrically arranged on the side of the side plate 331 close to the sleeve 310, and are respectively located at the two ends of the side plate 331, and the limit rods 333 penetrate the side plate 331 and extend into the interior of the sleeve 310.

[0060] As shown in Figures 3 to 4, a side plate 331 is provided on the outer peripheral surface of the sleeve 310, and a second spring 332 is fixedly connected between the side plate 331 and the sleeve 310. Two limit rods 333 are fixedly connected to the side of the side plate 331 facing the sleeve 310, and one end of the limit rod 333 extends and penetrates into the interior of the sleeve 310, wherein the two limit rods 333 are respectively installed at the two end portions of the side. When the sleeve 310 is not inserted into the pipeline, the second spring 332 will make the limit rod 333 extend into the interior of the sleeve 310, that is, the second spring 332 has a tendency to move the side plate 331 closer to the sleeve 310.

[0061] That is to say, when it is necessary to insert the pipe into the sleeve 310, first pull the side plate 331 by external force to keep it away from the sleeve 310, so that the limiting rod 333 is also moved outward, and then the pipe is inserted into the sleeve 310. When the pipe is connected to the sleeve 310, loosen the side plate 331, and under the action of the second spring 332, the side plate 331 moves close to the sleeve 310, thereby driving the limiting rod 333 to move, so that one end of the limiting rod 333 automatically moves to the inside of the sleeve 310 to resist the pipe, making the connection between the pipe and the fixing component 300 more secure.

[0062] Preferably, a plurality of groups of first clamping structures are provided inside the sleeve 310 , and a pair of second clamping structures are symmetrically provided outside the sleeve 310 .

[0063] As shown in FIG6 , in order to further enhance the effect of pipeline connection, a plurality of groups of first clamping structures are arranged inside the sleeve 310 along its axial direction, wherein the number of groups of the first clamping structures can be adjusted according to actual conditions; in addition, in this embodiment, a stack of second clamping structures are symmetrically arranged on the outside of the sleeve 310, thereby further increasing the stability of the connection between the fixing assembly 300 and the pipeline.

[0064] Preferably, the convex plate 322 is made of rubber.

[0065] It can be understood that rubber is an elastic material, which can prevent the pipeline from being damaged during the fastening and connection process to the greatest extent, and can also increase the friction between the protruding plate 322 and the pipeline to prevent the pipeline from escaping from the second clamping structure.

[0066] Preferably, a pressure sensor is provided inside the sleeve 310 at the end near the fixing seat 200 for detecting whether the pipe inside the sleeve 310 is properly installed, and an alarm connected to the pressure sensor is provided outside the fixing seat 200 for sounding an alarm when the pipe is not properly installed.

[0067] This article also provides another embodiment, that is, a pressure sensor is provided inside the sleeve 310 near the end of the fixing seat 200. When a pipe is inserted into the pipe and installed in place, it will abut the pressure sensor, and the pressure sensor will be subjected to a certain pressure. An alarm connected to the pressure sensor is provided on the outside of the fixing seat 200. When the pressure sensor is not subjected to pressure, the alarm will be triggered to remind the operator that the pipe is not installed properly to prevent the pipe from falling off during the dragging process.

[0068] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0069] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0070] The above is a detailed introduction to the embodiments provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A pipeline pulling back fixing device, characterized in that: include: The hole expansion member (100) has a spindle-shaped structure; A fixing seat (200) is connected to the hole expanding member (100); a plurality of fixing assemblies (300) are provided on a side of the fixing seat (200) facing away from the hole expanding member (100); the fixing assemblies (300) can be inserted into the pipe to be pulled back and can fix and clamp the inserted pipe.

2. The pipeline pulling back and fixing device according to claim 1 is characterized in that: The expansion member (100) is provided with a first connecting rod (110) for connecting to a traction device at one end along its axis, and a second connecting rod (120) is fixedly provided at the end of the expansion member (100) away from the first connecting rod (110), and a connecting main ring (130) is fixedly provided at the end of the second connecting rod (120).

3. The pipeline pulling back and fixing device according to claim 2 is characterized in that: The fixing seat (200) is in an overall conical structure, and the bottom surface diameter of the fixing seat (200) is smaller than the maximum cross-sectional diameter of the hole expansion member (100) perpendicular to its axis.

4. The pipeline pulling back and fixing device according to claim 3 is characterized in that: A third connecting rod (210) is provided at the end of the fixing seat (200) close to the hole expanding member (100), and a connecting secondary ring (220) for connecting to the connecting primary ring (130) is provided at the end of the third connecting rod (210).

5. The pipeline pulling back and fixing device according to claim 4 is characterized in that: The fixing assembly (300) comprises: The sleeve (310) is in a cylindrical structure and is vertically arranged on the bottom surface of the fixing seat (200). The sleeve (310) is used to sleeve the pipeline. The first clamping structure is arranged inside the sleeve (310) and is used to fix the pipe inserted into the sleeve (310).

6. The pipeline pulling back and fixing device according to claim 5, characterized in that: The first clamping structure comprises: a set of limiting plates (321), comprising two limiting plates (321) symmetrically arranged, wherein the limiting plates (321) are rotatably arranged on the inner wall of the sleeve (310); A convex plate (322) is fixedly arranged on a side opposite to the limiting plate (321); The first spring (323) is arranged between the inner wall of the sleeve (310) and the side opposite to the limiting plate (321), and the first spring (323) has a tendency to cause the limiting plate (321) to rotate in the axial direction of the sleeve (310).

7. The pipeline pulling back and fixing device according to claim 6, characterized in that: The fixing assembly (300) further comprises a second clamping structure arranged outside the sleeve (310), the second clamping structure comprising: A side plate (331) is arranged on the outer peripheral surface of the sleeve (310) via a second spring (332), wherein the second spring (332) has a tendency to move the side plate (331) closer to the sleeve (310); Two limiting rods (333), the limiting rods (333) are symmetrically arranged on a side of the side plate (331) close to the sleeve (310) and are respectively located at two ends of the side plate (331), and the limiting rods (333) penetrate the side plate (331) and extend into the interior of the sleeve (310).

8. The pipeline pulling back and fixing device according to claim 7, characterized in that: A plurality of groups of first clamping structures are provided inside the sleeve (310), and a pair of second clamping structures are symmetrically provided outside the sleeve (310).

9. The pipeline pulling back and fixing device according to claim 6, characterized in that: The specific material of the convex plate (322) is rubber.

10. The pipeline pulling back and fixing device according to claim 5, characterized in that: A pressure sensor is provided at the end of the sleeve (310) near the fixing seat (200) for detecting whether the pipe in the sleeve (310) is installed in place. An alarm connected to the pressure sensor is provided outside the fixing seat (200) for issuing an alarm when the pipe is not installed in place.

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