Guide support device for pipeline dredging rescue

By designing a guide bracket device and using a support frame and guide pulley to reduce the friction of the rescue rope, the problem of high friction of the rescue rope in the pipeline is solved, and the safety and applicability of pipeline dredging and rescue are improved.

CN223423376UActive Publication Date: 2025-10-10CHINA CONSTR EIGHTH ENG BUREAU HUAZHONG CONSTR CO LTD
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Patent Information

Application Number
CN202422614637.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-10-10
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

During the pipeline dredging and rescue process, the intense friction between the rescue rope and the rainwater and sewage pipe openings and the well walls causes the rope to break, posing a safety hazard. Existing technology is difficult to effectively reduce friction.

Method used

A guide bracket device is designed, including a support frame, a handrail, a fixed pulley and a positioning support rod. The guide pulley is used to reduce the friction of the rescue rope. The support frame is supported in the pipeline and the guide pulley is used to rotate and support the rescue rope, thereby reducing friction.

Benefits of technology

It effectively reduces the friction of the rescue rope during the traction process, prevents the rope from breaking, and improves the safety and reliability of the rescue process. It is suitable for rainwater and sewage pipes of different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a guide support device for pipeline desilting rescue, which relates to the technical field of pipeline desilting rescue devices and comprises a support frame, a grab rail, a fixed pulley and two positioning support rods. The grab rail is connected to the supporting frame. The fixed pulley piece comprises a fixed shaft and a guide pulley, the fixed shaft is fixed to the supporting frame, and the guide pulley is rotationally arranged on the guide pulley in a sleeving mode. The grab rail has the advantages that the whole supporting frame can stretch into a rain and sewage well through the grab rail, the supporting frame can be supported at the port of a rain and sewage pipeline, the guide pulley can rotatably support the rescue rope, and therefore the rescue rope can apply traction force from different angles, ground rescue workers or devices can conveniently pull the rescue rope, and the rescue effect is improved. Meanwhile, the guide pulley can greatly reduce friction force borne by the rescue rope in the traction process, and the rescue rope is prevented from being broken. And meanwhile, the device has the advantages of simple structure and convenience in use, and can meet the rescue work of rain and sewage pipelines with different pipe diameters.
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Description

Technical Field

[0001] The utility model relates to the technical field of pipeline desilting and rescue devices, in particular to a guide bracket device for pipeline desilting and rescue. Background Art

[0002] Urban drainage systems typically consist of stormwater and sewage pipes and spaced-apart sewers. These wells extend to the ground, allowing workers to access the pipes from the ground level, facilitating repair and dredging. Many urban sewers, due to age or other factors, are experiencing localized or even systemic blockage or damage, ultimately hindering urban drainage and drainage. This situation has led to a growing demand for desilting and repairing urban sewer pipes. However, desilting is a relatively dangerous operation within confined spaces, making it highly susceptible to accidents and casualties. When an accident occurs while working within a sewer pipe, rescuers are needed. Rescue workers utilize a rescue rope or a rescue vehicle to assist them. The rescuers and the power unit pulling the rescue rope are located above ground. Pulling the rope directly from the ground causes intense friction between the pipe opening and the sewer wall, creating a high friction force that can easily break the rope. Utility Model Content

[0003] In view of this, in order to facilitate ground personnel or equipment to pull rescue personnel or rescue equipment in rainwater and sewage pipes through rescue ropes, the utility model provides a guide bracket device for pipeline desilting and rescue, including a support frame, a handrail, a fixed pulley and two positioning support rods;

[0004] The end of the handrail is fixedly connected to the support frame;

[0005] The fixed pulley member includes a fixed shaft and a guide pulley, wherein the fixed shaft is fixed to the support frame, and the guide pulley is rotatably sleeved on the fixed shaft. The middle portion of the guide pulley is recessed, thereby forming a limiting groove in the middle portion of the guide pulley, and the guide pulley is used to rotatably support the rescue rope;

[0006] The ends of the positioning rods are fixed on the supporting frame, and the positioning rods are perpendicular to the fixed axis.

[0007] Furthermore, the supporting frame includes two longitudinal plates and two transverse plates, and both ends of the transverse plates are vertically connected to the ends of the two longitudinal plates; and both ends of the fixed shaft are respectively fixed to the two longitudinal plates.

[0008] Furthermore, each longitudinal plate is provided with an axle mounting seat, each axle mounting seat is provided with an axle mounting hole, the axle mounting holes on the two axle mounting seats are aligned with each other, and both ends of the fixed shaft are respectively fixedly supported in the two axle mounting holes.

[0009] Furthermore, a limiting cap is provided at one end of the fixed shaft and a connecting thread is provided at the other end, and the fixed shaft passes through the two shaft mounting holes, and the end of the fixed shaft with the connecting thread is sleeved with a first fastening nut, and the fastening nut and the limiting cap press the two shaft mounting seats from the outside of the two shaft mounting seats, thereby fixing and locking the fixed shaft.

[0010] Furthermore, both ends of the guide pulley are provided with limiting protruding rings.

[0011] Furthermore, a rotation bearing is respectively provided at both ends of the guide pulley, and the guide pulley is rotatably arranged on the fixed shaft through the two rotation bearings.

[0012] Furthermore, a bearing clamp is provided on the outer side of each rotating bearing, and both bearing clamps are clamped tightly on the fixed shaft.

[0013] Furthermore, the two positioning rods are respectively fixed to the ends of the two longitudinal plates.

[0014] Furthermore, it also includes two movable support rods, each end of the movable support rod is provided with a locking screw, each longitudinal plate is provided with a strip groove, each of the movable support rods is slidably set in a strip groove through a locking screw, and each of the locking screws is sleeved with a second fastening nut, and the second fastening nut vertically fixes the movable support rod in the strip groove of the longitudinal plate.

[0015] Furthermore, the handrail rod includes multiple branch rods and connecting ends, the connecting ends are welded to the support frame, and a first threaded connecting sleeve is provided on the connecting end. One end of the branch rod is provided with an external thread, and the other end is provided with a second threaded sleeve. The end of the branch rod with an external thread can be connected to the first threaded sleeve or the second threaded sleeve.

[0016] The present invention provides a guide support device for pipeline desilting and rescue, which has the following beneficial effects: the guide support device comprises a support frame, a handrail, a fixed pulley, and two positioning support rods; the handrail allows the entire guide support device to be extended into a rainwater and sewage well; the support frame can be supported at the end of the rainwater and sewage pipe; the guide pulley of the fixed pulley is rotatably fixed to the support frame via a rotating shaft; the guide pulley can rotatably support the rescue rope, thereby enabling the rescue rope to apply traction from different angles, facilitating the traction of the rescue rope by personnel or equipment on the ground; the guide pulley can also significantly reduce the friction experienced by the rescue rope during the traction process, preventing the rescue rope from breaking. The device also has the advantages of a simple structure and ease of use, and can meet the needs of rescue operations in rainwater and sewage pipes of various diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a front view of a guide bracket device for pipeline desilting and rescue.

[0018] Figure 2 The utility model is a side view of a guide bracket device for pipeline desilting and rescue.

[0019] In the above figure: 1-rain and sewage pipe, 2-rain and sewage well, 3-support frame, 31-transverse plate, 32-longitudinal plate, 33-strip groove, 34-axis mounting seat, 4-handrail, 5-fixed shaft, 51-rotating bearing, 52-bearing clamp, 6-guide pulley, 61-limiting convex ring, 7-positioning support rod, 71-movable support rod, 8-rescue rope. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to Figures 1 to 2 The utility model provides a guide bracket device for pipeline desilting and rescue, comprising a support frame 3, a handrail 4, a fixed pulley and two positioning support rods 7.

[0022] The support frame 3 is a rectangular frame structure, and the end of the handrail 4 is fixedly connected to the support frame 3;

[0023] The fixed pulley assembly includes a fixed shaft 5 and a guide pulley 6. The fixed shaft 5 is fixed on the supporting frame 3. The guide pulley 6 is rotatably mounted on the fixed shaft 5. The guide pulley is a cylindrical structure with a concave center, that is, the guide pulley 6 is thin in the middle and thin at both ends, thereby forming a limit groove in the middle of the guide pulley. The guide pulley 6 is used to rotatably support the rescue rope 8; the guide pulley 6 can enable the rescue rope 8 to apply traction from different angles without a sharp increase in friction. The ends of the two positioning support rods 7 are fixed on the supporting frame, and the positioning support rods 7 are both perpendicular to the fixed shaft 5.

[0024] When the guide bracket device is working, the staff uses the handrail rod 4 to extend the support frame 3 into the rainwater and sewage well 2, and supports the support frame 3 on the end of the rainwater and sewage pipe. The two positioning support rods 7 extend into the rainwater and sewage pipe 1 and are close to the inner wall of the rainwater and sewage pipe 1. At the same time, the staff presses the handrail rod 4 to prevent the support frame 3 from moving; the rescue rope 8 deflects the direction of the horizontal rescue rope 8 by a certain angle through the guide pulley 6, so that the rescuer can pull the rescue rope 8 to rescue the trapped person while standing on the ground.

[0025] In a preferred embodiment, the support frame 3 includes two longitudinal plates 32 and two transverse plates 31. The ends of the transverse plates 31 are perpendicularly connected to the ends of the two longitudinal plates 32, thereby forming a rectangular frame structure. In this embodiment, a reinforcement plate is provided between the two transverse plates 31. The ends of the handrail 4 are connected to the reinforcement plate and one of the transverse plates 31 by welding.

[0026] In a preferred embodiment, each longitudinal plate 32 is provided with a shaft mounting seat 34, each shaft mounting seat 34 having a shaft mounting hole, and the shaft mounting holes on the two shaft mounting seats 34 are aligned with each other. The fixed shaft 5 is fixedly supported at both ends within the two shaft mounting holes. One end of the fixed shaft 5 is provided with a stop cap, and the other end is provided with a connecting thread. The fixed shaft 5 passes through the two shaft mounting holes, and the end of the fixed shaft 5 with the connecting thread is sleeved with a first fastening nut. The first fastening nut and the stop cap press the two shaft mounting seats 34 from the outside, thereby securing and locking the fixed shaft 5. Both ends of the guide pulley 6 are provided with stop rings 61, which prevent the rescue rope 8 from sliding laterally on the guide pulley 6.

[0027] In a preferred embodiment, a rotating bearing 51 is provided at each end of the guide pulley 6. The guide pulley 6 is rotatably mounted on the fixed shaft 5 via the two rotating bearings. A bearing clamp 52 is provided on the outer side of each rotating bearing 51, and both bearing clamps 52 are clamped tightly to the fixed shaft 5. The rotating bearings 51 are used to reduce friction during the rotation of the guide pulley 6, thereby reducing the frictional resistance experienced by the rescue rope 8 during the traction process.

[0028] In a preferred embodiment, the two positioning rods 7 are respectively fixed to the ends of the two longitudinal plates 32. The guide bracket device also includes two movable rods 71, each of which is provided with a locking screw at the end thereof. Each longitudinal plate is provided with a strip groove 33. Each movable rod 71 is slidably disposed in one of the strip grooves 33 via a locking screw. Each locking screw is sleeved with a second fastening nut, which vertically fixes the movable rod 71 to the longitudinal plate. The two positioning rods 7 and the two movable rods 71 ​​are used to extend into the rainwater and sewage pipes and adhere to the inner wall of the rainwater and sewage pipe 1, thereby preventing the support frame 3 from sliding at the end of the rainwater and sewage pipe 1. The strip groove and locking screw structure enable the movable rod 71 to slide along the longitudinal plate, and the distance between the movable rod 71 and the positioning rod 7 is adjusted, so that the positioning rod 7 and the movable rod 71 can be applied to rainwater and sewage pipes 1 of different diameters.

[0029] In a preferred embodiment, the handrail rod 4 includes multiple branch rod bodies and connecting ends, the connecting ends are welded to the support frame 3, a first threaded sleeve is provided on the connecting end, one end of the branch rod body is provided with an external thread, and the other end of the branch rod body is provided with a second threaded sleeve, the end of the branch rod body with an external thread can be connected to the first threaded sleeve or the second threaded sleeve, and the handrail rod 4 is a multi-section assembled structure, so that the device can be applied to rainwater and sewage pipes of different depths.

[0030] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0031] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guide bracket device for pipeline dredging and rescue, characterized in that: It includes a supporting frame, a handrail, a fixed pulley and two positioning rods; The end of the handrail is fixedly connected to the support frame; The fixed pulley member includes a fixed shaft and a guide pulley, wherein the fixed shaft is fixed to the support frame, and the guide pulley is rotatably sleeved on the fixed shaft. The middle portion of the guide pulley is recessed, thereby forming a limiting groove in the middle portion of the guide pulley, and the guide pulley is used to rotatably support the rescue rope; The ends of the positioning rods are fixed on the supporting frame, and the positioning rods are perpendicular to the fixed axis.

2. A guide bracket device for pipeline desilting and rescue according to claim 1, characterized in that: The support frame includes two longitudinal plates and two transverse plates, and both ends of the transverse plates are vertically connected to the ends of the two longitudinal plates; and both ends of the fixed shaft are respectively fixed to the two longitudinal plates.

3. The guide bracket device for pipeline desilting and rescue according to claim 1, characterized in that: Each longitudinal plate is provided with an axle mounting seat, each axle mounting seat is provided with an axle mounting hole, the axle mounting holes on the two axle mounting seats are aligned with each other, and the two ends of the fixed shaft are respectively fixed in the two axle mounting holes.

4. A guide bracket device for pipeline desilting and rescue according to claim 3, characterized in that: One end of the fixed shaft is provided with a limiting cap, and the other end is provided with a connecting thread, and the fixed shaft passes through the two shaft mounting holes, and the end of the fixed shaft with the connecting thread is sleeved with a first fastening nut, and the first fastening nut and the limiting cap press the two shaft mounting seats from the outside of the two shaft mounting seats, thereby fixing and locking the fixed shaft.

5. The guide bracket device for pipeline desilting and rescue according to claim 1, characterized in that: Both ends of the guide pulley are provided with limiting convex rings.

6. The guide bracket device for pipeline desilting and rescue according to claim 1, characterized in that: A rotation bearing is respectively provided at both ends of the guide pulley, and the guide pulley is rotatably arranged on the fixed shaft through the two rotation bearings.

7. A guide bracket device for pipeline desilting and rescue according to claim 6, characterized in that: A bearing clamp is provided on the outer side of each rotating bearing, and both bearing clamps are clamped tightly on the fixed shaft.

8. The guide bracket device for pipeline desilting and rescue according to claim 2, characterized in that: The two positioning support rods are respectively fixed to the ends of the two longitudinal plates.

9. The guide bracket device for pipeline desilting and rescue according to claim 2, characterized in that: It also includes two movable support rods, each end of which is provided with a locking screw, and each longitudinal plate is provided with a strip groove. Each of the movable support rods can be slidably set in one of the strip grooves through a locking screw, and each of the locking screws is sleeved with a second fastening nut, which vertically fixes the movable support rod in the strip groove on the longitudinal plate.

10. The guide bracket device for pipeline desilting and rescue according to claim 1, characterized in that: The handrail rod includes multiple branch rods and connecting ends, the connecting ends are welded to the support frame, and a first threaded connecting sleeve is provided on the connecting end. One end of the branch rod is provided with an external thread, and the other end is provided with a second threaded sleeve. The end of the branch rod with an external thread can be connected to the first threaded sleeve or the second threaded sleeve.