Horizontal freezing pipe drawing device

By introducing a synchronous rotation driving mechanism and fixing mechanism into the freezing pipe extraction device, the problems of low efficiency and insufficient safety and reliability of freezing pipe extraction in the prior art are solved, and efficient and safe extraction of freezing pipes are achieved.

CN119712955APending Publication Date: 2025-03-28CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202411917196.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing freezing pipe extrusion device is inefficient and has insufficient safety and reliability during the process of extrusion, which can easily lead to freezing pipe breakage and engineering accidents.

Method used

A horizontal freezing pipe extrusion device is provided, including a pipe extrusion mechanism, a driving mechanism, a fixing mechanism and a control mechanism. The driving mechanism drives the pipe pulling mechanism to apply pulling force and torque to the freezing tube through synchronous rotation. The fixing mechanism ensures that the device works stably on the scaffolding, and the control mechanism coordinates the working status of each part.

Benefits of technology

It improves the extraction efficiency of the freezing tube, reduces the requirements for the pulling force, ensures the smooth extraction of the freezing tube, avoids breakage, and improves the safety and reliability of the device.

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Abstract

The invention discloses a horizontal freezing pipe drawing device which is characterized in that a driving mechanism drives a pipe drawing mechanism to synchronously rotate in the pipe drawing process, so that the pipe drawing mechanism and the driving mechanism are matched to synchronously apply drawing force and torque to a freezing pipe in the pipe drawing process, and the freezing pipe can overcome resistance of frozen soil more easily; the requirement for drawing force is lowered, so that the freezing pipe can be stably drawn out, the pipe drawing efficiency is improved, it is guaranteed that the freezing pipe cannot be broken due to too large drawing force, meanwhile, the pipe drawing mechanism and the driving mechanism are fixed to a scaffold through the fixing mechanism, it can be guaranteed that the pipe drawing mechanism and the driving mechanism are kept in the stable working state, and the working efficiency is improved. And the applied drawing force and torque are kept stable, so that the safety and reliability of the device in the pipe drawing process are improved.
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Description

Technical Field

[0001] The invention relates to the technical field of tunnel engineering, and in particular to a pipe pulling device for freezing tunnel pipes. Background Art

[0002] In tunnel engineering, freezing pipes are usually driven horizontally into the tunnel soil to freeze the tunnel soil and improve the soil properties to facilitate subsequent tunnel construction. After the freezing is completed, before the shield machine is constructed, some of the freezing pipes in the frozen soil need to be pulled out. In the prior art, a manual hoist is usually used to manually pull the freezing pipes.

[0003] A Chinese patent with announcement number CN 215332835 U discloses a freezing pipe pulling machine, including a pipe pulling machine base, wherein the pipe pulling machine base is provided with a freezing pipe clearance hole penetrating therethrough, a lifting device and a guide rod are vertically provided on the outer side of the pipe pulling machine base, the lifting device includes a lifting arm, the lifting arm is connected to an upper end plate, the upper end plate is in a circular ring shape, a guide component for guiding the guide rod is provided on the outer side of the upper end plate, the upper end plate is evenly hingedly connected to more than two pull rods, the lower end of the pull rod is hingedly connected to a locking rod, the lower end of the locking rod is a locking end, a locking protrusion is provided on the inner side of the locking end, and the locking end is hingedly connected to a lower end plate in a circular ring shape to pull the freezing pipe out of the soil.

[0004] However, the existing freezing pipe pulling device can only provide pulling force for the freezing pipe, and the freezing pipe is tightly connected to the frozen soil, so the freezing pipe is not easy to pull out. It is also easy to cause the freezing pipe to break during the pulling process, causing engineering accidents, and the pulling efficiency is low.

[0005] Therefore, how to effectively improve the extraction efficiency of the frozen pipes and ensure the safety and reliability of the pipe extraction device has become an urgent problem in this field. Summary of the invention

[0006] In view of the defects of the prior art, the object of the present invention is to provide a horizontal freezing pipe pulling device which has high pulling efficiency and is safe and reliable.

[0007] In order to achieve the above-mentioned purpose, the horizontal freezing pipe pulling device provided by the present invention comprises a pulling mechanism, wherein the pulling mechanism can pull the freezing pipe, and further comprises

[0008] a driving mechanism, the driving mechanism being connected to the extubation mechanism and configured to drive the extubation mechanism to rotate synchronously during the extubation process,

[0009] A fixing mechanism, the fixing mechanism is connected to the driving mechanism, configured to adjust the clamping force, and fix the tube pulling mechanism and the driving mechanism on the scaffold,

[0010] A control mechanism is configured to control the working states of the extubation mechanism, the driving mechanism and the fixing mechanism.

[0011] Furthermore, the fixing mechanism comprises a mounting seat, one end of which is connected to the connecting seat of the tube pulling mechanism via a sliding assembly, and the other end of which is provided with an adjustable clamp assembly, the diameter of which can be adjusted to match the scaffold.

[0012] Furthermore, the sliding assembly includes a guide slide groove and a guide slide seat arranged in the guide slide groove, the guide slide groove is arranged at the end of the mounting seat, and the guide slide seat is arranged at the end of the connecting seat.

[0013] Furthermore, the adjustable clamp assembly includes a first positioning clamp block and a second positioning clamp block that can form a circular ring, the first positioning clamp block is fixed on the mounting seat, and the second positioning clamp block is slidably connected to a sliding groove on the mounting seat via a slider.

[0014] Furthermore, the adjustable clamp assembly also includes an electric push rod, one end of which is arranged on the side of the mounting seat, and the other end is connected to a push plate, and the push plate is connected to the slider via a support arm.

[0015] Furthermore, the driving mechanism includes a mounting cavity, an active component and a driven component. The mounting cavity is built into the mounting seat and accommodates the active component therein. The driven component is respectively connected to the active component and the tube removal mechanism. The active component is configured to drive the driven component to rotate synchronously.

[0016] Furthermore, the active component includes a driving motor, a first rotating rod and a first gear, wherein one end of the first rotating rod is connected to an output end of the driving motor, and the other end of the first rotating rod is connected to the first gear.

[0017] Furthermore, the driven assembly includes a second gear, an upper area of ​​the second gear passes through the installation cavity and meshes with the first gear, a middle area is connected to a third gear through a second rotating rod, the third gear meshes with a gear ring, and the gear ring is distributed around the connecting seat.

[0018] Further, the number of teeth of the first gear is less than the number of teeth of the second gear, and the number of teeth of the third gear is less than the number of teeth of the gear ring.

[0019] Furthermore, the end of the second rotating rod is connected to the side surface of the mounting seat through a bearing seat.

[0020] The horizontal freezing pipe pulling device provided by the present invention drives the pulling mechanism to rotate synchronously during the pulling process through the driving mechanism, so that the pulling mechanism and the driving mechanism cooperate to synchronously apply pulling force and torque to the freezing pipe during the pulling process, so that the freezing pipe can more easily overcome the resistance of the frozen soil, reduce the requirement for the pulling force, so that the freezing pipe can be pulled out smoothly, thereby improving the pulling efficiency and ensuring that the freezing pipe will not break due to excessive pulling force.

[0021] At the same time, the horizontal freezing pipe pulling device provided by the present invention fixes the pulling mechanism and the driving mechanism on the scaffolding through a fixing mechanism, which can ensure that the pulling mechanism and the driving mechanism maintain a stable working state, so that the applied pulling force and torque remain stable, thereby improving the safety and reliability of the device during the pulling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of the horizontal freezing pipe pulling device provided by the present invention;

[0024] Figure 2 for Figure 1 A magnified image of

[0025] Figure 3 It is a schematic diagram of the matching structure of the driving mechanism in the present invention.

[0026] Reference numerals:

[0027] 100. Tube removal mechanism; 110. Connecting seat;

[0028] 200. driving mechanism; 210. mounting cavity; 220. driving component; 221. driving motor; 222. first rotating rod; 223. first gear; 230. driven component; 231. second gear; 232. second rotating rod; 233. third gear; 234. bearing seat; 235. gear ring;

[0029] 300. Fixing mechanism; 310. Mounting seat; 311. Slide groove; 320. Sliding assembly; 321. Guide slide groove; 322. Guide slide seat; 330. Adjustable clamp assembly; 331. First positioning clamp block; 332. Second positioning clamp block; 333. Sliding block; 334. Electric push rod; 335. Push plate; 336. Support arm. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0031] Embodiment 1

[0032] See also Figure 1 , which shows an example of the horizontal freezing pipe pulling device provided by the present invention.

[0033] As can be seen from the figure, the horizontal freezing pipe pulling device of this example includes a pulling mechanism 100, a driving mechanism 200, a fixing mechanism 300 and a control mechanism.

[0034] The tube pulling mechanism 100 can pull the frozen pipe, and the driving mechanism 200 is connected to the tube pulling mechanism 100 and is configured to drive the tube pulling mechanism 100 to rotate synchronously during the tube pulling process, so that the driving mechanism 200 and the tube pulling mechanism 100 synchronously apply a pulling force and torque to the frozen pipe, so that the frozen pipe can more easily overcome the resistance of the frozen soil, reduce the requirement for the pulling force, so that the frozen pipe can be pulled out smoothly, so as to improve the tube pulling efficiency and ensure that the frozen pipe will not break due to excessive pulling force.

[0035] Furthermore, the fixing mechanism 300 is configured to fix the tube removal mechanism 100 and the driving mechanism 200 on the scaffold, ensuring that the tube removal mechanism 100 and the driving mechanism 200 maintain a stable working state, so that the applied pulling force and torque remain stable, thereby improving the safety and reliability of the device during the tube removal process.

[0036] In addition, the control mechanism is configured to control the working states of the tube pulling mechanism 100, the driving mechanism 200 and the fixing mechanism 300, so that the tube pulling mechanism 100 and the driving mechanism 200 cooperate with each other to pull out the frozen pipe slowly and smoothly, thereby ensuring the tube pulling efficiency and the structural integrity of the frozen pipe.

[0037] Combination Figure 2 The fixing mechanism 300 includes a mounting seat 310, one end of which is connected to the connecting seat 110 of the tube-pulling mechanism 100 through a sliding assembly 320, so that the tube-pulling mechanism 100 can rotate relative to the fixing mechanism 300 through the sliding assembly 320, and the other end of the mounting seat 310 is provided with an adjustable clamp assembly 330, and the diameter of the adjustable clamp assembly 330 can be adjusted to match the scaffold, so that the fixing mechanism 300 can fix the tube-pulling mechanism 100 on the scaffold to ensure the working stability of the tube-pulling mechanism 100.

[0038] Furthermore, the adjustable clamp assembly 330 includes a first positioning clamp block 331 and a second positioning clamp block 332. The first positioning clamp block 331 and the second positioning clamp block 332 can be enclosed to form a circular ring to clamp the scaffolding. The first positioning clamp block 331 is fixedly set at the end of the mounting seat 310, and the second positioning clamp block 332 is slidably connected to the slide groove 311 on the mounting seat 310 through the slider 333, so that the slider 333 moves axially in the slide groove 311, which can drive the second positioning clamp block 332 to move synchronously on the mounting seat 310.

[0039] As an example, when the slider 333 moves axially in the slide groove 311 facing the first positioning clamp 331, it can drive the second positioning clamp 332 to move axially on the mounting seat 310 facing the first positioning clamp 331 synchronously, thereby reducing the diameter and clamping force of the ring formed by the first positioning clamp 331 and the second positioning clamp 332.

[0040] On the contrary, the slider 333 moves axially in the slide groove 311 away from the first positioning clamp 331, which can drive the second positioning clamp 332 to move synchronously, thereby increasing the diameter of the ring formed by the first positioning clamp 331 and the second positioning clamp 332. Therefore, the diameter and clamping force of the adjustable clamp assembly 330 can be adjusted by the movement of the slider 333 to adapt to the scaffolding, so that the adjustable clamp assembly 330 can clamp the scaffolding.

[0041] Furthermore, the ends of the first positioning clamp block 331 and the second positioning clamp block 332 can be connected by fixing bolts, so that after the first positioning clamp block 331 and the second positioning clamp block 332 clamp the scaffold, the fixing bolts can stabilize the clamping force to ensure a firm clamping of the scaffold.

[0042] The adjustable clamp assembly 330 also includes an electric push rod 334, one end of which is arranged on the side of the mounting seat 310, and the other end is connected to the push plate 335. The push plate 335 is connected to the slider 333 through the support arm 336, so that the electric push rod 334 can be extended and retracted to drive the slider 333 to move synchronously in the slide groove 311 through the push plate 335 and the support arm 336, thereby adjusting the diameter and clamping force of the ring formed by the first positioning clamp block 331 and the second positioning clamp block 332.

[0043] The adjustable clamp assembly 330 thus formed is arranged at the upper and lower end areas of the end surface of the mounting seat 310, which can ensure that the pipe pulling mechanism 100 and the driving mechanism 200 work smoothly without being affected by environmental factors such as uneven frozen soil.

[0044] In coordination therewith, the sliding assembly 320 is arranged at the upper and lower end areas of the other end surface of the mounting seat 310 and corresponds to the adjustable clamp assembly 330, so that the sliding assembly 320 and the adjustable clamp assembly 330 cooperate to fix the tube extraction mechanism 100 and the driving mechanism 200, and the driving mechanism 200 can also drive the tube extraction mechanism 100 to rotate relative to the fixing mechanism 300 through the sliding assembly 320.

[0045] Specifically, the sliding assembly 320 includes a guide slot 321 and a guide slide 322. The guide slot 321 is arranged at the end of the mounting seat 310, and the guide slide 322 is arranged at the end of the connecting seat 110 of the tube removal mechanism 100. The guide slide 322 is arranged in the guide slot 321, so that the guide slide 322 can rotate in the guide slot 321 and drive the tube removal mechanism 100 to rotate synchronously relative to the fixing mechanism 300.

[0046] Preferably, the guide slide 322 is configured as a dovetail slide, and the guide slide 322 is slidably connected to the guide slot 321. The guide slot 321 utilizes the wedge structure of the dovetail slot to effectively resist lateral force and achieve very precise linear guidance. It has high rigidity and can withstand large loads without deformation, thereby making the structure more stable and not easy to loosen, and preventing the rotation of the tube removal mechanism 100 from offset.

[0047] The sliding assembly 320 thus constructed enables the pipe pulling mechanism 100 to pull the frozen pipe, and while applying a pulling force, it can also rotate synchronously to drive the frozen pipe to rotate, apply torque to the frozen pipe, and make it easier for the frozen pipe to overcome the resistance of the frozen soil, so that the frozen pipe can be pulled out smoothly, thereby improving the pipe pulling efficiency and ensuring that the frozen pipe will not break due to excessive pulling force.

[0048] Combination Figure 2 In order to enable the extubation mechanism 100 to stably rotate through the sliding assembly 320, the driving mechanism 200 is connected to the connecting seat 110 of the extubation mechanism 100, and can drive the extubation mechanism 100 to rotate synchronously during the extubation process.

[0049] Specifically, the driving mechanism 200 includes a mounting cavity 210, an active component 220 and a driven component 230. The active component 220 is built into the mounting cavity 210. The driven component 230 is respectively connected to the active component 210 and the tube removal mechanism 110. The active component 220 is configured to drive the driven component 230 to rotate synchronously, thereby driving 220 to rotate synchronously.

[0050] Furthermore, the mounting cavity 210 is built into the mounting seat 110 of the fixing mechanism 300 and is placed in the lower area of ​​the mounting seat 110 to improve the tight connection and cooperation among the fixing mechanism 300, the driving mechanism 200 and the tube removal mechanism 100 and make the device compact.

[0051] At the same time, the installation cavity 210 accommodates the active component 220 therein, and the active component 220 includes a driving motor 221, a first rotating rod 222 and a first gear 223. One end of the first rotating rod 222 is connected to the output end of the driving motor 221, and the other end is connected to the first gear 223, so that the driving motor 221 can drive the first rotating rod 222 to rotate. At the same time, the first rotating rod 222 can drive the first gear 223 to rotate synchronously, so that the active component 220 can rotate synchronously in the installation cavity 210.

[0052] Furthermore, a through hole is provided at the bottom of the installation cavity 210 for cooperating with the driven component 230, so that the driven component 230 passes through the through hole to cooperate with the active component 220 in the installation cavity 210, so that the active component 220 can drive the driven component 230 to rotate synchronously.

[0053] In coordination therewith, the driven assembly 230 includes a second gear 231, the upper area of ​​the second gear 231 passes through the mounting cavity 210 and meshes with the first gear 223, a second rotating rod 232 is provided in the middle area of ​​the second gear 231, one end of the second rotating rod 232 is connected to the third gear 233, and the other end is connected to the bottom side of the mounting seat 110 through a bearing seat 234, so that the rotation of the first gear 223 can drive the second gear 231 to rotate synchronously, and drive the third gear 233 to rotate synchronously through the second rotating rod 232.

[0054] At the same time, the second rotating rod 232 is connected to the bottom side of the mounting seat 110 through the bearing seat 234 to ensure the rotational matching stability of the second gear 231 and the third gear 233 .

[0055] Furthermore, the driven assembly 230 further includes a gear ring 235, which is distributed around the connecting seat 110 of the tube removal mechanism 100. The third gear 233 is meshed with the gear ring 235, so that the third gear 233 can drive the gear ring 235 to rotate synchronously, so that the gear ring 235 can drive the connecting seat 110 to rotate synchronously in the sliding assembly 320, thereby driving the tube removal mechanism 100 to rotate stably.

[0056] Combination Figure 3 The number of teeth of the first gear 223 is less than that of the second gear 231, the first gear 223 and the second gear 231 are meshed with each other, and the gear ring 235 drives the second gear 231 to rotate, the number of teeth of the third gear 233 is less than that of the gear ring 235, the third gear 233 and the gear ring 235 are meshed with each other, and the third gear 233 drives the gear ring 235 to rotate.

[0057] This arrangement can achieve the effect of deceleration and torque increase by driving the large gear through the small gear. During the pipe pulling process, it is necessary to overcome the resistance of the frozen soil, which requires a large torque. The deceleration and torque increase can amplify the pulling force provided by the pipe pulling mechanism 100, thereby making it easier to overcome the resistance of the frozen soil, reduce the requirements for the power system and pulling force, and protect the frozen pipe from overload damage.

[0058] At the same time, by changing the rotation speed of the small gear through the control mechanism, the rotation speed of the large gear and the connected pipe pulling mechanism 100 can be accurately controlled, so that the frozen pipe can be pulled out slowly and smoothly, especially when the soil conditions around the frozen pipe are complicated or the freezing conditions are uneven, which can avoid pipeline damage or other accidents caused by excessively fast pipe pulling speed.

[0059] The driving mechanism 200 thus constructed cooperates with the active component 220 and the driven component 230 to drive the tube pulling mechanism 100 to rotate synchronously and stably during the tube pulling process, so that the tube pulling mechanism 100 simultaneously applies pulling force and torque to the frozen pipe, ensuring that the frozen pipe can be pulled out smoothly and improving the tube pulling efficiency.

[0060] In order to ensure the stable operation of the device, the device also includes a control mechanism, which is respectively connected to the tube pulling mechanism 100, the driving motor 221 of the driving mechanism 200, and the electric push rod 334 of the fixing mechanism 300, so that the control mechanism can respectively control the tube pulling speed of the tube pulling mechanism 100, the rotation speed of the driving mechanism 200 and the clamping force of the fixing mechanism 300, so that the fixing mechanism 300 can firmly clamp the tube pulling mechanism 100 and the driving mechanism 200 on the scaffold, and make the tube pulling speed and rotation speed of the tube pulling mechanism 100 compatible, so as to ensure that the pulling force and torque applied to the frozen pipe are stable, the frozen pipe can be pulled out smoothly, the tube pulling efficiency is improved, and the safety and reliability of the device are ensured at the same time.

[0061] Embodiment 2

[0062] On the basis of the first embodiment, in order to improve the extraction efficiency of the tube extraction mechanism 100, a vibration mechanism is further provided in the second embodiment. The vibration mechanism is composed of a telescopic support frame, one end of the telescopic support frame is connected to the connection seat 110 of the tube extraction mechanism 100, and the other end is connected to the mounting seat 310 of the fixing mechanism 300, so that the telescopic support frame can be quickly extended and retracted to drive the tube extraction mechanism 100 to disengage from the sliding assembly 320 and generate forward and backward vibrations, so that the tube extraction mechanism 100 can drive the frozen pipe to vibrate, overcome the resistance of the frozen soil, and thus extract the frozen pipe.

[0063] Thus, the control mechanism can control the vibration mechanism to work alternately with the driving mechanism 200, so that the pipe pulling mechanism 100 can generate vibration or rotation in different frozen soil environments to improve the pipe pulling efficiency.

[0064] Furthermore, a water spraying mechanism is also provided on the connecting seat 110 of the tube pulling mechanism 100, and the water spraying mechanism can cooperate with the driving mechanism 200. When the driving mechanism 200 drives the tube pulling mechanism 100 to rotate, the water spraying mechanism synchronously sprays water on the frozen pipe, so that in the process of the driving mechanism 200 driving the tube pulling mechanism 100 to rotate, the water sprayed by the water spraying mechanism can cover the surrounding of the frozen pipe, so that the connection between the frozen pipe and the frozen soil is loosened, the resistance of the frozen soil is reduced, and the frozen pipe can be quickly pulled out.

[0065] The following examples illustrate the working process of the present invention in a specific application. It should be noted that the following content is only a specific application example of the present solution and does not constitute a limitation to the present solution.

[0066] The control mechanism controls the extension and retraction of the electric push rod 334 of the adjustable clamp assembly 330, so that the electric push rod 33 drives the slider 333 to move synchronously in the slide groove 311 through the push plate 335 and the support arm 336, thereby adjusting the diameter of the ring formed by the first positioning clamp block 331 and the second positioning clamp block 332, so that the adjustable clamp assembly 330 can stably clamp the scaffolding, ensuring that the pipe pulling mechanism 100 and the driving mechanism 200 work smoothly without being affected by environmental factors such as uneven frozen soil.

[0067] Next, the control mechanism controls the tube pulling mechanism 100 to start pulling the frozen pipe and applies a pulling force to the frozen pipe. At the same time, the control mechanism controls the drive motor 221 to work to drive the active component 220 to rotate, so that the active component drives the driven component 230 to rotate synchronously, thereby driving the tube pulling mechanism 100 to rotate synchronously, and synchronously applying torque to the frozen pipe to overcome the resistance of the frozen soil, pull out the frozen pipe smoothly, and improve the tube pulling efficiency.

[0068] The horizontal freezing pipe pulling device provided by the present invention realizes the synchronous pulling and rotation of the pulling mechanism 100 through the cooperation of the pulling mechanism 100, the driving mechanism 200, the fixing mechanism 300 and the control mechanism, and synchronously applies pulling force and torque to the freezing pipe, so that the freezing pipe can more easily overcome the resistance of the frozen soil, reduce the requirement for the pulling force, so that the freezing pipe can be pulled out smoothly, improve the pulling efficiency, and ensure that the freezing pipe will not be broken due to excessive pulling force, while improving the safety and reliability of the operation of the device.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A horizontal freezing pipe pulling device, comprising a pulling mechanism, wherein the pulling mechanism can pull the freezing pipe, and wherein: Also includes a driving mechanism, the driving mechanism being connected to the extubation mechanism and configured to drive the extubation mechanism to rotate synchronously during the extubation process, A fixing mechanism, the fixing mechanism is connected to the driving mechanism, configured to adjust the clamping force, and fix the tube pulling mechanism and the driving mechanism on the scaffold, A control mechanism is configured to control the working states of the extubation mechanism, the driving mechanism and the fixing mechanism.

2. The horizontal freezing pipe pulling device according to claim 1, characterized in that: The fixing mechanism comprises a mounting seat, one end of which is connected to the connecting seat of the tube pulling mechanism via a sliding assembly, and the other end of which is provided with an adjustable clamp assembly, the diameter of which can be adjusted to match the scaffold.

3. The horizontal freezing pipe pulling device according to claim 2, characterized in that: The sliding assembly comprises a guide slide groove and a guide slide seat arranged in the guide slide groove, the guide slide groove is arranged at the end of the mounting seat, and the guide slide seat is arranged at the end of the connecting seat.

4. The horizontal freezing pipe pulling device according to claim 2, characterized in that: The adjustable clamp assembly includes a first positioning clamp block and a second positioning clamp block that can form a circular ring, the first positioning clamp block is fixed on the mounting seat, and the second positioning clamp block is slidably connected to a sliding groove on the mounting seat via a sliding block.

5. The horizontal freezing pipe pulling device according to claim 4, characterized in that: The adjustable clamp assembly also includes an electric push rod, one end of which is arranged on the side of the mounting seat, and the other end is connected to a push plate, and the push plate is connected to the slider through a support arm.

6. The horizontal freezing pipe pulling device according to claim 2, characterized in that: The driving mechanism includes a mounting cavity, a driving component and a driven component. The mounting cavity is built into the mounting seat and accommodates the driving component therein. The driven component is respectively connected to the driving component and the tube removal mechanism. The driving component is configured to drive the driven component to rotate synchronously.

7. The horizontal freezing pipe pulling device according to claim 6, characterized in that: The active component includes a driving motor, a first rotating rod and a first gear. One end of the first rotating rod is connected to the output end of the driving motor, and the other end is connected to the first gear.

8. The horizontal freezing pipe pulling device according to claim 7, characterized in that: The driven assembly includes a second gear, the upper area of ​​the second gear passes through the installation cavity and meshes with the first gear, the middle area is connected to the third gear through a second rotating rod, the third gear meshes with a gear ring, and the gear ring is distributed around the connecting seat.

9. The horizontal freezing pipe pulling device according to claim 8, characterized in that: The number of teeth of the first gear is less than that of the second gear, and the number of teeth of the third gear is less than that of the gear ring.

10. The horizontal freezing pipe pulling device according to claim 8, characterized in that: The end of the second rotating rod is connected to the side surface of the mounting seat through a bearing seat.

Citation Information

Patent Citations

  • Freezing pipe drawing bench

    CN215332835U