PCCP pipe vertical lifting device with safety signal device

By using a magnetic ring cylinder and a magnetic switch safety signal device, the problem of inaccurate clamping during PCCP pipe hoisting was solved, achieving precise clamping and safe hoisting, thus improving production efficiency and safety.

CN224377498UActive Publication Date: 2026-06-19SHANDONG ELECTRIC POWER PIPELINE ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ELECTRIC POWER PIPELINE ENG
Filing Date
2025-07-09
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

During the lifting of PCCP pipes, it is difficult for the crane operator to accurately observe whether the cylinder extension and retraction are in place, which may result in the lifting device not being clamped or released properly, easily causing lifting accidents and affecting production efficiency.

Method used

A safety signal device with a magnetic ring cylinder and a magnetic switch is adopted. The piston rod stroke is precisely controlled by the magnetic ring cylinder and the magnetic switch. Combined with the clamping mechanism of the inner and outer rings, the full contact status of the PCCP tube is detected by the contact contact and the clamping status is fed back through wireless communication.

Benefits of technology

It achieves precise clamping of PCCP pipes, avoiding clamping too tightly or too loosely, improving lifting safety and production efficiency, ensuring the stability and reliability of clamping, and providing timely feedback on clamping status, thereby improving operational accuracy.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224377498U_ABST
    Figure CN224377498U_ABST
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Abstract

The utility model provides a kind of PCCP pipe vertical lifting appliance with safety signal device, it is related to prestressed steel cylinder concrete pipeline production technical field, to solve crane driver needs to observe whether in place by naked eye cylinder extension and retract, if hoisting is not in place under the condition of lifting appliance clamping, easy to cause PCCP pipe to fall in the process of hoisting, cause the problem of accident, including inside hole;The inside hole is fixedly connected with inside block inside;Shrinkage groove is set in the inside of the inside block;Contact contact is slidably connected in the inside of the shrinkage groove.Contact contact set on the inside block by shrinkage groove when inner ring is contacted with PCCP pipe, contact contact shrinks, and multiple sets of contact contact work synchronously, only when all shrinkage, trigger signal is sent to wireless communication unit one, to judge whether PCCP pipe and inner ring are completely contacted, and this detection mode ensures that pipeline is completely clamped, and it is convenient for operator to master working condition in real time, improve the accuracy of work.
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Description

Technical Field

[0001] This utility model belongs to the field of prestressed steel cylinder concrete pipe production technology, and more specifically, it relates to a PCCP pipe vertical lifting tool with a safety signal device. Background Technology

[0002] During the PCCP production process, after the core is formed, it needs to be vertically hoisted to the winding, spraying, and anti-corrosion areas for corresponding production operations. Currently, the cranes used in PCCP production lines are generally gantry cranes or bridge cranes, which typically have a large span. When the distance between the PCCP pipe and the crane cab is far or the ambient lighting is insufficient, it is difficult for the crane operator to accurately observe whether the piston rod of the lifting cylinder has extended / retracted into place. Therefore, many lifting accidents such as pipe drops have occurred during the PCCP production process. To facilitate the lifting and handling of PCCP pipes, a special lifting tool is needed.

[0003] Based on existing technology, it has been found that during the current PCCP pipe hoisting process, the crane operator needs to visually observe whether the cylinder extension and retraction are in place. If the lifting is not performed when the lifting device is not properly clamped, the PCCP pipe is prone to falling during the hoisting process, causing an accident. If the lifting device is not properly released, it is difficult for the lifting device to be correctly clamped onto the PCCP pipe socket, which seriously affects production efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model relates to a vertical lifting device for PCCP pipes with a safety signal device. This addresses the issues that, during the existing PCCP pipe lifting process, the crane operator needs to visually observe whether the cylinder extension and retraction are in place. If the lifting is not properly clamped, the PCCP pipe is prone to falling during lifting, causing an accident. Furthermore, if the lifting device is not properly released, it is difficult to correctly engage the lifting device with the PCCP pipe's connector, severely impacting production efficiency.

[0005] This utility model provides a vertical lifting device for PCCP pipes with a safety signal device, achieved through the following specific technical means:

[0006] A vertical lifting device for PCCP pipes with a safety signal device includes: a magnetic ring cylinder; the magnetic ring cylinder is equipped with a cylinder piston rod position detection unit; a clamping mechanism is fixedly connected to the piston rod of the magnetic ring cylinder; an outer ring is fixedly connected to the clamping mechanism; an inner ring is provided on the inner side of the outer ring; a cylinder seat is fixedly connected to the outer wall of the outer ring; external bolt holes are equidistantly opened on the outer wall of the outer ring; internal connecting holes are equidistantly opened on the outer wall of the inner ring; internal mounting holes are equidistantly opened on the inner wall of the inner ring; an adjusting screw is threadedly connected to the internal thread of the external bolt hole; an internal mounting block is fixedly connected to the internal mounting hole; a shrinkage groove is opened inside the internal mounting block; a contact contact is slidably connected inside the shrinkage groove.

[0007] Preferably, the magnetic ring cylinder is provided with a magnetic switch on its exterior.

[0008] Preferably, a magnetic ring cylinder is movably connected inside the cylinder seat; a battery unit is provided on the cylinder seat, and a wireless communication unit one is provided on the cylinder seat; the wireless communication unit one on the cylinder seat is connected to the cylinder piston rod position detection unit on the magnetic ring cylinder via a signal; the wireless communication unit one on the cylinder seat is connected to an external wireless communication unit two via a signal.

[0009] Preferably, the outer bolt hole is a threaded through hole; the inner hole is a circular through hole, and the inner hole is aligned with the corresponding outer bolt hole.

[0010] Preferably, the inner hole is a circular groove; the adjusting screw is rotatably connected to the corresponding inner hole; and the inner block is a cylindrical structure.

[0011] Preferably, the shrinkage groove is configured as a cylindrical groove, and the shrinkage groove is connected to a circular through hole; the contact head is connected to a return spring; the contact head is electrically connected to a wireless communication unit on the cylinder seat.

[0012] Preferably, the top of the outer ring is provided with a top support frame; an external lifting assembly is movably connected above the top support frame.

[0013] The PCCP pipe vertical lifting device with a safety signal device proposed in this utility model has the following beneficial effects:

[0014] 1. The equipment uses a magnetic ring cylinder in conjunction with a magnetic switch to achieve precise control of the piston rod extension distance. The magnetic switch assists the magnetic ring cylinder, which can accurately adjust the piston rod stroke according to actual needs. This allows the clamping mechanism to drive the outer and inner rings to vertically and accurately clamp the PCCP pipe, avoiding damage to the pipe due to excessive clamping or slippage due to insufficient clamping. This ensures the stability and reliability of the clamping process, effectively improving the clamping quality and operational safety of the PCCP pipe. At the same time, the cylinder seat provides auxiliary fixation for the magnetic ring cylinder, enhancing the stability of the overall structure, reducing shaking during operation, and further ensuring the accuracy and stability of the clamping.

[0015] 2. The contact contacts on the inner wall of the inner ring are installed on the inner block through a contraction groove. When the inner ring contacts the PCCP pipe, the contact contacts contract. Multiple sets of contact contacts work synchronously. Only when all contacts are fully contracted will a trigger signal be sent to the wireless communication unit to determine whether the PCCP pipe and the inner ring are in complete contact. This detection method ensures that the pipe is fully clamped, avoiding the problem of insecure clamping due to partial non-contact. It can also promptly feed back the clamping status to the external control system, allowing operators to monitor the working situation in real time and improving the accuracy of the work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the three-dimensional assembly structure of this utility model from a bottom view.

[0018] Figure 3 This is an exploded structural diagram of the present invention.

[0019] Figure 4 This is an exploded bottom view structural diagram of this utility model.

[0020] Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0021] Figure 6 This utility model is composed of Figure 5 A schematic diagram of the enlarged structure of part A.

[0022] Figure 7 This is a flowchart of the safety signal control of this utility model.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Magnetic ring cylinder; 2. Magnetic switch; 3. Clamping mechanism; 4. Outer ring; 5. Inner ring; 6. Cylinder seat; 7. Outer bolt hole; 8. Inner connection hole; 9. Inner mounting hole; 10. Adjusting screw; 11. Inner mounting block; 12. Shrinkage groove; 13. Contact contact; 14. Top mounting bracket; 15. External lifting assembly. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0026] Example 1: As shown in the attached document Figure 1 To be continued Figure 7As shown: This utility model provides a vertical lifting device for PCCP pipes with a safety signal device, including: a magnetic ring cylinder 1; the magnetic ring cylinder 1 is equipped with a cylinder piston rod position detection unit; the magnetic ring cylinder 1 is used to control the clamping mechanism 3 to perform clamping and releasing operations, so as to facilitate vertical clamping of the PCCP pipe; the piston rod of the magnetic ring cylinder 1 is fixedly connected to the clamping mechanism 3; the clamping mechanism 3 is used to adjust under the control of the magnetic ring cylinder 1, so as to drive the outer ring 4 and the inner ring 5 to adjust, so as to facilitate vertical clamping of the PCCP pipe; the outer ring 4 is fixedly connected to the clamping mechanism 3; the outer ring 4... The outer ring 4 is used to vertically clamp the PCCP pipe in conjunction with the inner ring 5; the inner ring 5 is located on the inner side of the outer ring 4; the inner ring 5 is used to vertically clamp the PCCP pipe in conjunction with the outer ring 4; a cylinder seat 6 is fixedly connected to the outer wall of the outer ring 4; the cylinder seat 6 is used to assist in fixing the magnetic ring cylinder 1 to facilitate its stability; external bolt holes 7 are equidistantly opened on the outer wall of the outer ring 4; the external bolt holes 7 are used to assist in adjusting the adjusting screw 10 to facilitate control of the distance between the outer ring 4 and the inner ring 5; so as to vertically clamp the PCCP pipe; the inner ring 5 has equidistantly opened... An internal connection hole 8 is provided; the internal connection hole 8 is used to assist in the installation of the adjusting screw 10, so that the adjusting screw 10 and the inner ring 5 can be adjusted synchronously; the inner wall of the inner ring 5 is provided with internal mounting holes 9 at equal intervals; the internal mounting holes 9 are used to assist in the installation of the internal mounting block 11, so that it can be kept stable; the internal thread of the external bolt hole 7 is connected to the adjusting screw 10; the adjusting screw 10 is used to control the distance between the inner ring 5 and the outer ring 4 through the thread during rotation, so as to facilitate the vertical clamping of the PCCP pipe; the internal mounting block 11 is fixedly connected inside the internal mounting hole 9; the internal mounting block 11 is used to cooperate with the shrink groove 12 to assist in the installation of the PCCP pipe. The contact 13 is installed to facilitate its stability; the inner block 11 has a shrinkage groove 12 inside; the shrinkage groove 12 is used to assist in the installation of the contact 13 and facilitate its adjustment; the contact 13 is slidably connected inside the shrinkage groove 12; the contact 13 shrinks after contacting the PCCP pipe, so as to detect whether the PCCP pipe and the inner ring 5 are in complete contact through multiple sets of synchronous shrinkage, so as to send a trigger signal to the wireless communication unit 1 at the same time as it is fully shrinking, so as to facilitate the vertical clamping of the wireless communication unit 1.

[0027] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 7 As shown, a magnetic switch 2 is provided on the outside of the magnetic ring cylinder 1; the magnetic switch 2 is used to assist in controlling the extension distance of the piston rod of the magnetic ring cylinder 1, so as to facilitate the vertical and precise clamping of the PCCP pipe.

[0028] A magnetic ring cylinder 1 is movably connected inside the cylinder seat 6; a battery unit is provided on the cylinder seat 6; a wireless communication unit 1 is provided on the cylinder seat 6; the wireless communication unit 1 on the cylinder seat 6 is connected to the cylinder piston rod position detection unit on the magnetic ring cylinder 1 via a signal; the wireless communication unit 1 on the cylinder seat 6 is connected to an external wireless communication unit 2 via a signal.

[0029] The outer bolt hole 7 is a threaded through hole; the inner connection hole 8 is a circular through hole, and the inner connection hole 8 is aligned with the corresponding outer bolt hole 7.

[0030] The inner hole 9 is a circular groove; the adjusting screw 10 is rotatably connected to the corresponding inner hole 8; the inner block 11 is a cylindrical structure.

[0031] The shrinkage groove 12 is configured as a cylindrical groove, and the shrinkage groove 12 is connected to a circular through hole; the contact 13 is connected to a return spring; the contact 13 is electrically connected to the wireless communication unit on the cylinder seat 6.

[0032] The top of the outer ring 4 is provided with a top support frame 14; an external lifting assembly 15 is movably connected above the top support frame 14.

[0033] The specific usage and function of this embodiment are as follows:

[0034] In this invention, the adjusting screw 10 is rotated according to the diameter of the PCCP pipe. Since the adjusting screw 10 is threadedly connected to the outer bolt hole 7 and rotatably connected to the inner connection hole 8, the distance between the outer ring 4 and the inner ring 5 is controlled by the threaded transmission when the adjusting screw 10 is rotated, so that the inner ring 5 and the outer ring 4 can adapt to PCCP pipes of different diameters, completing the preparation work for vertical clamping of the PCCP pipe. When vertical clamping of the PCCP pipe is required, the entire device is placed on the PCCP pipe, and the magnetic ring cylinder 1 is activated. The magnetic switch 2 outside the magnetic ring cylinder 1 plays a role in assisting to control the extension distance of the piston rod of the magnetic ring cylinder 1, ensuring that the PCCP pipe can be vertically and accurately clamped. The piston rod of the magnetic ring cylinder 1 drives the clamping mechanism 3 to move, thereby causing the outer ring 4 and the inner ring 5 connected to the clamping mechanism 3 to move towards the PCCP pipe. When the inner ring 5 contacts the PCCP pipe, the contact contact 13 is subjected to the PCCP. The tube is compressed and slides within the shrinkage groove 12, and multiple contact contacts 13 shrink synchronously. When all contact contacts 13 have shrunk to their positions, it indicates that the PCCP tube and the inner ring 5 are in complete contact. At this time, the contact contacts 13 send a trigger signal to the wireless communication unit 1 on the cylinder seat 6. The wireless communication unit 1 then transmits the signal to the external wireless communication unit 2, notifying the external control system that the PCCP tube has been fully vertically clamped and subsequent operations can be performed. When it is necessary to release the PCCP tube, the piston rod of the magnetic ring cylinder 1 retracts, driving the clamping mechanism 3, the outer ring 4, and the inner ring 5 to reset, so that the inner ring 5 and the outer ring 4 are separated from the PCCP tube. The equipment can be hoisted and moved by the external hoisting assembly 15 so that the next PCCP tube can be vertically clamped.

[0035] The following points should be noted in this article:

[0036] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0037] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A vertical lifting device for PCCP pipes with a safety signal device, comprising: A magnetic ring cylinder (1); the magnetic ring cylinder (1) is provided with a cylinder piston rod position detection unit; characterized in that: the piston rod of the magnetic ring cylinder (1) is fixedly connected to a clamping mechanism (3); an outer ring (4) is fixedly connected to the clamping mechanism (3); an inner ring (5) is provided on the inner side of the outer ring (4); a cylinder seat (6) is fixedly connected to the outer wall of the outer ring (4); an outer bolt hole (7) is provided at equal intervals on the outer wall of the outer ring (4); an inner connection hole (8) is provided at equal intervals on the outer wall of the inner ring (5); an inner mounting hole (9) is provided at equal intervals on the inner wall of the inner ring (5); an adjusting screw (10) is threadedly connected to the inner thread of the outer bolt hole (7); an inner mounting block (11) is fixedly connected to the inner thread of the inner thread hole (9); a shrinkage groove (12) is provided inside the inner thread of the inner thread block (11); a contact contact (13) is slidably connected inside the shrinkage groove (12).

2. The PCCP pipe vertical lifting device with safety signal device according to claim 1, characterized in that: The magnetic ring cylinder (1) is equipped with a magnetic switch (2) on its exterior.

3. A vertical lifting device for PCCP pipes with a safety signal device according to claim 1, characterized in that: A magnetic ring cylinder (1) is movably connected inside the cylinder seat (6); a battery unit is provided on the cylinder seat (6), and a wireless communication unit one is provided on the cylinder seat (6); the wireless communication unit one on the cylinder seat (6) is connected to the cylinder piston rod position detection unit on the magnetic ring cylinder (1) via a signal; the wireless communication unit one on the cylinder seat (6) is connected to an external wireless communication unit two via a signal.

4. A vertical lifting device for PCCP pipes with a safety signal device according to claim 1, characterized in that: The outer bolt hole (7) is configured as a threaded through hole; the inner connection hole (8) is configured as a circular through hole, and the inner connection hole (8) is aligned with the corresponding outer bolt hole (7).

5. A vertical lifting device for PCCP pipes with a safety signal device according to claim 1, characterized in that: The inner hole (9) is set as a circular groove; the adjusting screw (10) is rotatably connected in the corresponding inner hole (8); the inner block (11) is set as a cylindrical structure.

6. A vertical lifting device for PCCP pipes with a safety signal device according to claim 1, characterized in that: The shrinkage groove (12) is configured as a cylindrical groove, and the shrinkage groove (12) is connected to a circular through hole; the contact (13) is connected to a reset spring; the contact (13) is electrically connected to the wireless communication unit on the cylinder seat (6).

7. A vertical lifting device for PCCP pipes with a safety signal device according to claim 1, characterized in that: The top of the outer ring (4) is provided with a top support frame (14); an external lifting assembly (15) is movably connected above the top support frame (14).