Pipeline composite traction trolley

By designing a pipe composite pulling truck, the jaw structure and transmission chain are used to pull and recombine the pipe, solving the problems of low equipment versatility and high manufacturing cost in the prior art, and achieving efficient and universal pipeline composite processing.

CN222790404UActive Publication Date: 2025-04-25YICHANG LIMIN AIR-CONDITIONING EQUIP CO LTD
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Patent Information

Application Number
CN202421761699.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-04-25
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

In the prior art, a pulling equipment needs to be set up separately during the pipeline compounding process, resulting in low equipment versatility and increasing processing and manufacturing costs.

Method used

A pipe composite pulling cart is designed, including substrate, engaging part, connecting rod, sliding assembly, roller, locking member and other components. The pipe is clamped through the jaw structure and the transmission chain provides power to achieve pulling and combining of the pipe.

Benefits of technology

The equipment can efficiently pull the diameter expansion molds arranged in the outer layer of the composite pipe or the inner layer of the outer layer of the composite pipe, which has high versatility and reduces production and manufacturing costs.

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Abstract

The utility model relates to a pipeline composite traction trolley. Idler wheels are installed at the lower end of a base plate. The first meshing part and the second meshing part are rotatably connected to the upper end of the base plate through a pin shaft, and the front end of the first meshing part and the front end of the second meshing part form a jaw structure; the front end of the first connecting rod is movably connected with the rear end of the first meshing part through a pin shaft, and the front end of the second connecting rod is movably connected with the rear end of the second meshing part through a pin shaft; the rear end of the first connecting rod and the rear end of the second connecting rod are rotatably connected to the sliding assembly through pin shafts. The jaw structure is arranged on one side of the upper end of the base plate, and the sliding assembly is connected to the other side of the upper end of the base plate. The base plate on the side where the jaw structure is located is connected with one end of the strip-shaped transmission chain, and the sliding assembly is connected with the other end of the strip-shaped transmission chain. And the locking piece is detachably fixed on the first meshing part and the second meshing part. The pipeline composite traction trolley has high universality, and the production and manufacturing cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of composite pipeline processing, in particular to a composite pipeline pulling trolley. Background Art

[0002] Composite pipe refers to a structure in which the pipe walls of multiple layers are composited together by external force. There are two commonly used pipe composite methods:

[0003] The first method is to pull the outer layer pipe forward, pass the outer layer pipe through the diameter reduction die, and squeeze the outer layer pipe inward through the diameter reduction die to reduce the diameter of the outer layer pipe, thereby compounding the outer layer pipe and the inner layer pipe.

[0004] The second method is to set a diameter expansion die in the inner layer pipe, pull the diameter expansion die forward, and squeeze the inner layer pipe outward through the diameter expansion die to achieve the purpose of expanding the inner layer pipe, thereby compounding the inner layer pipe and the outer layer pipe.

[0005] At present, both of the above-mentioned composite pipe solutions require the installation of separate pulling equipment, which results in low versatility of the pulling equipment and increases the processing and manufacturing costs. Utility Model Content

[0006] The utility model provides a pipeline composite pulling trolley to solve the technical problems in the prior art that, in the process of pipeline composite, a separate pulling device needs to be set up to pull the outer pipeline or the mold arranged in the inner pipeline, resulting in low versatility of the pulling device and increased processing and manufacturing costs.

[0007] The technical solution of the utility model to solve the above technical problems is as follows:

[0008] A pipeline composite pulling trolley comprises: a base plate, a first bite portion, a second bite portion, a first connecting rod, a second connecting rod, a sliding assembly, a roller and a locking member;

[0009] The roller is mounted on the lower end of the base plate; the first bite portion and the second bite portion are rotatably connected to the upper end of the base plate through a pin shaft, and the front end of the first bite portion and the front end of the second bite portion constitute a jaw structure, and the jaw structure is used to clamp the outer layer pipe; the front end of the first connecting rod is movably connected to the rear end of the first bite portion through a pin shaft, and the front end of the second connecting rod is movably connected to the rear end of the second bite portion through a pin shaft; the rear end of the first connecting rod and the rear end of the second connecting rod are rotatably connected to the sliding assembly through a pin shaft;

[0010] The jaw structure is arranged on one side of the upper end of the base plate, and the sliding assembly is connected to the other side of the upper end of the base plate; the base plate on the side where the jaw structure is located is connected to one end of the strip transmission chain, and the sliding assembly is connected to the other end of the strip transmission chain;

[0011] The locking member is detachably fixed to the first and second bite parts, and is used to lock the first and second bite parts; a mounting hole is provided on the locking member, and the mounting hole is used to install a pull rod, and the pull rod is used to connect to the expansion mold in the inner layer pipe.

[0012] Furthermore: the slider assembly includes: a first limit block, a second limit block, a sliding block, a first vertical plate, a second vertical plate and a horizontal plate;

[0013] The first limit block and the second limit block are arranged opposite to each other and fixed on the base plate, the gap between the first limit block and the second limit block is arranged as a slideway; the sliding block is arranged in the slideway;

[0014] The first vertical plate and the second vertical plate are fixed to the upper end of the sliding block, the first vertical plate and the second vertical plate are arranged opposite to each other, and the outer sides of the first vertical plate and the second vertical plate are used to connect with one end of the strip transmission chain; the cross plate is fixed to the upper ends of the first vertical plate and the second vertical plate;

[0015] The rear ends of the first connecting rod and the second connecting rod are rotatably connected to the sliding block and the transverse plate through a pin shaft.

[0016] Further: it also includes: a cylinder and a reset claw;

[0017] The reset claw is arranged at the upper ends of the first bite part and the second bite part, and the reset claw is provided with a first support leg and a second support leg, the first support leg and the second support leg are arranged opposite to each other, the first support leg is connected to the first bite part, and the second support leg is connected to the second bite part;

[0018] One end of the cylinder is connected to the reset claw, and the other end of the cylinder is connected to the transverse plate.

[0019] Further: it also includes: a first connecting member and a second connecting member; the first connecting member is connected to the base plate below the jaw structure, and the first connecting member is used to connect to one end of the strip drive chain; the second connecting member is connected to the first vertical plate and the second vertical plate, and the second connecting member is used to connect to the other end of the strip drive chain.

[0020] Further: it also includes: a first cushion block and a second cushion block; the first cushion block is fixed to the inner side of the front end of the first bite portion, and the second cushion block is fixed to the inner side of the front end of the second bite portion;

[0021] The first cushion block and the second cushion block are made of flexible material.

[0022] Furthermore: the first cushion block and the second cushion block are provided with anti-slip grooves on the side in contact with the pipeline.

[0023] The pipeline composite pulling trolley provided by the utility model has at least the following beneficial effects or advantages:

[0024] The composite pipe pulling trolley provided by the utility model, when it is necessary to pull the outer pipe set on the outer layer of the composite pipe, the outer pipe is clamped by the jaw structure, and the transmission chain provides power to pull the outer pipe forward and make the outer pipe pass through the reducing die, so as to achieve the purpose of reducing the diameter of the outer pipe, thereby making the outer pipe and the inner pipe be combined together. When it is necessary to pull the expanding die set in the inner pipe, a locking member is installed, and the expanding die is connected by a pull rod connected to the locking member, and the transmission chain provides power to pull the expanding die forward and squeeze the inner pipe outward, so as to achieve the purpose of expanding the inner pipe, thereby making the inner pipe and the outer pipe be combined together. It can be seen that the composite pipe pulling trolley provided by the utility model can pull the outer pipe set forward and the expanding die set in the inner pipe forward, and has high versatility and reduces the production and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a pipeline composite pulling trolley provided in an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the partial structure of the pipeline composite pulling trolley provided in an embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a sliding assembly provided in an embodiment of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-base plate, 2-first bite part, 3-second bite part, 4-first connecting rod, 5-second connecting rod, 6-sliding assembly, 7-roller, 8-locking member, 9-cylinder, 10-reset claw, 11-first connecting member, 12-second connecting member, 13-first cushion block, 14-second cushion block, 61-first limiting block, 62-second limiting block, 63-sliding block, 64-first vertical plate, 65-second vertical plate, 66-horizontal plate. DETAILED DESCRIPTION

[0030] The utility model provides a pipeline composite pulling trolley to solve the technical problems in the prior art that, in the process of pipeline composite, a separate pulling device needs to be set up to pull the outer pipeline or the mold arranged in the inner pipeline, resulting in low versatility of the pulling device and increased processing and manufacturing costs.

[0031] 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 of 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.

[0032] See also Figure 1 and Figure 2 The utility model provides a pipeline composite pulling trolley, comprising: a base plate 1, a first bite portion 2, a second bite portion 3, a first connecting rod 4, a second connecting rod 5, a sliding assembly 6, a roller 7 and a locking member 9. The functions and positional relationships of the components are as follows:

[0033] The roller 7 is installed at the lower end of the base plate 1; in this embodiment, four rollers 7 are provided, and the four rollers 7 are distributed in a rectangular shape at the lower end of the base plate 1. The first bite part 2 and the second bite part 3 are rotatably connected to the upper end of the base plate 1 through a pin shaft, and the front end of the first bite part 2 and the front end of the second bite part 3 constitute a jaw structure, which is used to clamp the outer layer pipe. The front end of the first connecting rod 4 is movably connected to the rear end of the first bite part 2 through a pin shaft, and the front end of the second connecting rod 5 is movably connected to the rear end of the second bite part 3 through a pin shaft; the rear end of the first connecting rod 4 and the rear end of the second connecting rod 5 are rotatably connected to the sliding assembly 6 through a pin shaft. The jaw structure is provided on one side of the upper end of the base plate 1, and the sliding assembly 6 is connected to the other side of the upper end of the base plate 1; the base plate 1 on the side where the jaw structure is located is connected to one end of the strip transmission chain, and the sliding assembly 6 is connected to the other end of the strip transmission chain.

[0034] After the pipe composite pulling trolley is connected to the strip transmission chain, the pipe composite pulling trolley and the transmission chain form a closed-loop drive assembly, the transmission chain is connected to a power device (such as a sprocket on a reduction motor), and the power device drives the transmission chain to rotate. When it is necessary to pull the pipe set on the outer layer of the composite pipe, the transmission chain drives the motion module in the sliding assembly 6 to slide during the rotation process, and the motion module in the sliding assembly 6 pulls the first connecting rod 4 and the second connecting rod 5 forward, the first connecting rod 4 pulls the first bite part 2, and the second connecting rod 5 pulls the second bite part 3, so that the first bite part 2 and the second bite part 3 clamp the outer layer pipe and drag the outer layer pipe forward, at this time, the inner layer pipe moves synchronously with the outer layer pipe, and the outer layer pipe passes through the diameter reduction die to achieve the purpose of reducing the diameter of the outer layer pipe, thereby making the outer layer pipe and the inner layer pipe composite together.

[0035] The locking member 8 is detachably fixed to the first bite part 2 and the second bite part 3, and is used to lock the first bite part 2 and the second bite part 3; the locking member 8 is provided with a mounting hole, and the mounting hole is used to install a pull rod, and the pull rod is used to connect with the diameter expansion mold in the inner layer pipe. When it is necessary to pull the diameter expansion mold set in the inner layer pipe, the locking member 8 is installed, and the diameter expansion mold is connected through the pull rod connected to the locking member 8. The transmission chain provides power to pull the diameter expansion mold forward and squeeze the inner layer pipe outward, so as to achieve the purpose of expanding the inner layer pipe, and then the inner layer pipe and the outer layer pipe are compounded together.

[0036] See also Figure 1-Figure 3 In a preferred embodiment provided by the present utility model, see Figure 3 The slider assembly includes: a first limit block 61, a second limit block 62, a sliding block 63, a first vertical plate 64, a second vertical plate 65 and a horizontal plate 66. The first limit block 61 and the second limit block 62 are arranged opposite to each other and fixed on the base plate 1, and the gap between the first limit block 61 and the second limit block 62 is set as a slideway; the sliding block 63 is set in the slideway, and the sliding block 63 can move linearly in the slideway. The first vertical plate 64 and the second vertical plate 65 are fixed to the upper end of the sliding block 63, and the first vertical plate 64 and the second vertical plate 65 are arranged opposite to each other. The outer sides of the first vertical plate 64 and the second vertical plate 65 are used to connect with one end of the strip transmission chain; the horizontal plate 66 is fixed to the upper ends of the first vertical plate 64 and the second vertical plate 65. The rear ends of the first connecting rod 4 and the second connecting rod 5 are rotatably connected to the sliding block 63 and the horizontal plate 66 through a pin shaft.

[0037] In order to facilitate the quick release of the first bite part 2 and the second bite part 3 so that the clamped outer pipe can be removed from the jaw structure, a preferred embodiment provided by the utility model also includes: a cylinder 9 and a reset claw 10. The reset claw 10 is arranged at the upper end of the first bite part 2 and the second bite part 3, and the reset claw 10 is provided with a first support leg and a second support leg, the first support leg and the second support leg are arranged oppositely, the first support leg is connected to the first bite part 2, and the second support leg is connected to the second bite part 3. One end of the cylinder 9 is connected to the reset claw 10, and the other end of the cylinder 9 is connected to the cross plate 66. When in use, the movable rod of the cylinder 9 contracts, and the movable rod of the cylinder 9 drives the reset claw 10 to move forward, and the reset claw 10 drives the first bite part 2 and the second bite part 3 forward to separate, so as to facilitate the removal of the outer pipe.

[0038] See also Figure 1 and Figure 2 In order to facilitate the connection between the pipe composite pulling trolley and the strip-shaped driving chain, a preferred embodiment provided by the utility model further includes: a first connecting member 11 and a second connecting member 12. The first connecting member 11 is connected to the base plate 1 below the jaw structure, and the first connecting member 11 is used to connect to one end of the strip-shaped driving chain; the second connecting member 12 is connected to the first vertical plate 64 and the second vertical plate 65, and the second connecting member 12 is used to connect to the other end of the strip-shaped driving chain.

[0039] See also Figure 1 and Figure 2 In a preferred embodiment provided by the utility model, a first pad 13 and a second pad 14 are also provided. The first pad 13 is fixed to the inner side of the front end of the first bite portion 2, and the second pad 14 is fixed to the inner side of the front end of the second bite portion 3. The first pad 13 and the second pad 14 are made of flexible material to prevent damage to the pipe surface when clamping the outer pipe. The first pad 13 and the second pad 14 are provided with anti-slip grooves on the side in contact with the pipe to prevent slipping when clamping the outer pipe.

[0040] The pipeline composite pulling trolley provided by the embodiment of the utility model has at least the following beneficial effects or advantages:

[0041] The composite pipe pulling trolley provided by the embodiment of the utility model, when it is necessary to pull the pipe set on the outer layer of the composite pipe, the outer pipe is clamped by the jaw structure, and the transmission chain provides power to pull the outer pipe forward and make the outer pipe pass through the diameter reduction die, so as to achieve the purpose of reducing the diameter of the outer pipe, thereby making the outer pipe and the inner pipe be combined together. When it is necessary to pull the diameter expansion die set in the inner pipe, a locking member is installed, and the diameter expansion die is connected by a pull rod connected to the locking member, and the transmission chain provides power to pull the diameter expansion die forward and squeeze the inner pipe outward, so as to achieve the purpose of expanding the inner pipe, thereby making the inner pipe and the outer pipe be combined together. It can be seen that the composite pipe pulling trolley provided by the utility model can pull the pipe set on the outer layer forward and pull the diameter expansion die set in the inner pipe forward, which has high versatility and reduces the production and manufacturing costs.

[0042] In the description of the present utility model, it should be noted that the terminology nouns in the various embodiments, such as words indicating directions such as "upper", "lower", "front", "back", "left", "right", etc., are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated according to the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute limitations on the present utility model.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline composite pulling trolley, characterized in that: include: A base plate, a first engaging portion, a second engaging portion, a first connecting rod, a second connecting rod, a sliding assembly, a roller and a locking member; The roller is mounted on the lower end of the base plate; the first bite portion and the second bite portion are rotatably connected to the upper end of the base plate through a pin shaft, and the front end of the first bite portion and the front end of the second bite portion constitute a jaw structure, and the jaw structure is used to clamp the outer layer of the pipeline; the front end of the first connecting rod is movably connected to the rear end of the first bite portion through a pin shaft, and the front end of the second connecting rod is movably connected to the rear end of the second bite portion through a pin shaft; the rear end of the first connecting rod and the rear end of the second connecting rod are rotatably connected to the sliding assembly through a pin shaft; The jaw structure is arranged on one side of the upper end of the base plate, and the sliding assembly is connected to the other side of the upper end of the base plate; the base plate on the side where the jaw structure is located is connected to one end of the strip transmission chain, and the sliding assembly is connected to the other end of the strip transmission chain; The locking member is detachably fixed on the first and second bite parts, and is used to lock the first and second bite parts; a mounting hole is provided on the locking member, and the mounting hole is used to install a pull rod, and the pull rod is used to connect with the expansion mold in the inner layer of the pipeline.

2. The pipeline composite pulling trolley according to claim 1 is characterized in that: The slider assembly comprises: a first limit block, a second limit block, a sliding block, a first vertical plate, a second vertical plate and a horizontal plate; The first limit block and the second limit block are arranged opposite to each other and fixed on the base plate, the gap between the first limit block and the second limit block is arranged as a slideway; the sliding block is arranged in the slideway; The first vertical plate and the second vertical plate are fixed to the upper end of the sliding block, the first vertical plate and the second vertical plate are arranged opposite to each other, and the outer sides of the first vertical plate and the second vertical plate are used to connect with one end of the strip transmission chain; the cross plate is fixed to the upper ends of the first vertical plate and the second vertical plate; The rear ends of the first connecting rod and the second connecting rod are rotatably connected to the sliding block and the transverse plate through a pin shaft.

3. The pipeline composite pulling trolley according to claim 2 is characterized in that: Also includes: Cylinder and reset claw; The reset claw is arranged at the upper ends of the first bite part and the second bite part, and the reset claw is provided with a first support leg and a second support leg, the first support leg and the second support leg are arranged opposite to each other, the first support leg is connected to the first bite part, and the second support leg is connected to the second bite part; One end of the cylinder is connected to the reset claw, and the other end of the cylinder is connected to the transverse plate.

4. The pipeline composite pulling trolley according to claim 1 is characterized in that: Also includes: A first connecting member and a second connecting member; the first connecting member is connected to the base plate below the jaw structure, and the first connecting member is used to connect to one end of the strip drive chain; the second connecting member is connected to the first vertical plate and the second vertical plate, and the second connecting member is used to connect to the other end of the strip drive chain.

5. The pipeline composite pulling trolley according to claim 1 is characterized in that: Also includes: A first cushion block and a second cushion block; the first cushion block is fixed to the inner side of the front end of the first bite portion, and the second cushion block is fixed to the inner side of the front end of the second bite portion; The first cushion block and the second cushion block are made of flexible material.

6. The pipeline composite pulling trolley according to claim 5, characterized in that: The first cushion block and the second cushion block are provided with anti-slip grooves on one side thereof for contacting with the pipeline.