Anti-falling interface ring hoisting device

Abstract

The utility model provides an anti-drop interface ring hoisting device which comprises an upper hoisting ring, a concentric-square-shaped hoisting ring and an automatic locking device, the upper hoisting ring is arranged on the concentric-square-shaped hoisting ring, and an automatic locking assembly is arranged in a concentric-square-shaped assembly; the automatic locking device comprises a spring assembly and a connecting rod assembly; the spring assembly is arranged in the concentric-square-shaped hanging ring, the bottom of the spring assembly is connected with the connecting rod assembly, and the connecting rod assembly is slidably arranged on one side of the concentric-square-shaped hanging ring. The connecting rod assembly comprises a connecting rod and a lifting rod, one side of the connecting rod is movably connected with the spring assembly, the other end of the connecting rod is movably connected with the bottom of the lifting rod, and the lifting rod is slidably arranged in the concentric-square-shaped lifting ring; an opening through which a to-be-lifted steel plate can pass is formed in one side of the concentric-square-shaped lifting ring, and a pin seat corresponding to the lifting rod is arranged at the bottom of the concentric-square-shaped lifting ring. The lifting device has the advantages that the upper lifting ring is combined with the concentric-square-shaped lifting ring, automatic hooking and unhooking operation can be achieved, the transfer frequency in production is reduced, and the hooking and unhooking time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of prestressed steel cylinder concrete pipe production, in particular to an anti-dropping interface ring hoisting device. Background Art

[0002] Prestressed steel cylinder concrete pipe refers to a water pipeline made by winding circumferential prestressed steel wire on a high-strength concrete pipe core with a steel cylinder, and then rolling a dense cement mortar protective layer on its surface. It has the characteristics of high pressure resistance, corrosion resistance, high sealing, high strength and high impermeability. It is widely used in long-distance water supply trunk lines, urban water supply projects, pressurized water supply trunk lines, pressure sewage trunk pipes, etc.

[0003] The production of PCCP interface rings mainly includes rolling, welding, polishing, flanging, rounding, drilling, tapping and other processes. The main raw materials are fixed-length socket flat steel and spigot special-shaped steel, with a width of 216mm and 205mm. The main equipment is a rolling machine, a flanging machine, a rounding machine, and a magnetic drill. The finished steel strip is first rolled into a ring using a rolling machine. By adjusting the gap between the rollers, the interface rings of different specifications are cold rolled into a circle. The interface end faces should be horizontal up and down, and the welds should be "V" shaped. Misalignment and misalignment are not allowed. Then, the spot welding is firm and the ring is hoisted to the welding platform for grinding and welding. After the socket ring is welded, it needs to be flanging. The socket ring is hoisted to the flanging area. By adjusting the height and gap of the flanging machine rollers, the socket ring can be flanging to the required size. After the edge is folded, it is hoisted to the expansion area. The expansion mold should be adjusted according to the type of the expanded interface ring. The interface ring is placed on the expansion machine and measured with a depth gauge. When it expands to a certain depth, the diameter of the interface ring is measured with a π ruler until it is expanded to the standard size. After the expansion is completed, the plug ring needs to be symmetrically drilled along the diameter direction between the two sealing grooves and tapped.

[0004] The production process of PCCP interface rings is complex, and finished products and semi-finished products need to be frequently transported between various operating areas during the production process. Since the weight of the PCCP socket steel plate is relatively small, iron chains are generally used to pass through the interface rings, and the two ends of the chains are put on the hooks for lifting. During the production process, operators need to frequently remove and hang iron chains. Utility Model Content

[0005] In view of this, the utility model aims to propose an anti-dropping interface ring lifting device to assist in the processing and transportation of PCCP socket steel plates, reduce the time for lifting equipment replacement, optimize the workers' work process, and improve production efficiency.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] An anti-drop interface ring lifting device comprises an upper lifting ring, a return lifting ring, and an automatic locking device, wherein the upper lifting ring is arranged on the return lifting ring, and the automatic locking component is arranged inside the return component;

[0008] The automatic locking device comprises a spring assembly and a connecting rod assembly; the spring assembly is arranged in the return type lifting ring, the bottom of the spring assembly is connected to the connecting rod assembly, and the connecting rod assembly is slidably arranged on one side of the return type lifting ring;

[0009] The connecting rod assembly includes a connecting rod and a lifting rod. One side of the connecting rod is movably connected to the spring assembly, and the other end of the connecting rod is movably connected to the bottom of the lifting rod. The lifting rod is slidably arranged in a return-shaped lifting ring.

[0010] One side of the loop-shaped lifting ring is provided with an opening through which the steel plate to be lifted can pass, and the bottom of the loop-shaped lifting ring is provided with a pin seat corresponding to the lifting rod.

[0011] The steel plate to be hoisted is PCCP socket steel plate.

[0012] Further, the spring assembly includes a pressure rod, an upper spring connecting plate, a lower spring connecting plate, and a spring, wherein the upper spring connecting plate and the lower spring connecting plate are arranged at both ends of the spring; the bottom of the pressure rod is vertically arranged on the upper part of the upper spring connecting plate;

[0013] A sliding sleeve is arranged inside the return lifting ring, and the upper spring connecting plate is slidably arranged in the sliding sleeve;

[0014] A through hole is arranged on the return type lifting ring for allowing the spring to pass through, a guide plate is arranged inside the return type lifting ring, a sliding groove is arranged on the guide plate, and a lower spring connecting plate is slidably arranged on the sliding groove of the guide plate.

[0015] Furthermore, the return ring is provided with a sliding hole capable of sliding the lifting rod; the lifting rod is slidably arranged in the return ring through the sliding hole, and the sliding hole is arranged on one side of the opening of the return ring;

[0016] A through groove is provided on the return lifting ring so that the connecting rod can move up and down. The connecting rod can move in the through groove of the return lifting ring. The return lifting ring is a hollow structure.

[0017] Furthermore, an adjustment rod is provided inside the circular hoisting ring, and the two ends of the adjustment rod are arranged on both sides of the circular hoisting ring, and a plurality of bearings are rotatably provided on the adjustment rod. The steel plate to be hoisted is arranged above the bearings, and the operator can change the position of the steel plate to be hoisted by rotating the bearings. The matching bearings cooperate with manual rotation of the steel plate to be hoisted, which can facilitate welding and grinding of the steel plate to be hoisted, and can replace the role of the welding platform to a certain extent.

[0018] Further, the height of the bearing corresponds to the height of the sliding sleeve, or the height of the sliding sleeve is lower than the height of the bearing.

[0019] Compared with the prior art, the anti-dropping interface ring lifting device described in the utility model has the following advantages:

[0020] 1. This application combines the upper lifting ring with the return lifting ring to realize automatic hooking and unhooking operations, reduce the frequency of transportation in production, and shorten the time of hooking and unhooking; the matching bearing cooperates with manual rotation to facilitate welding and grinding of the socket, which can replace the role of the welding platform to a certain extent, optimize the workers' work process, and improve production efficiency. At the same time, the lifting device is equipped with an automatic locking device, which can realize automatic anti-loosening locking and improve safety.

[0021] 2. The device has a simple structure, is easy to assemble, is firm and stable, is not easy to damage, and the parts are easy to make at a low cost.

[0022] 3. The structure of this device can quickly put the steel plate to be hoisted, and the matching bearing can rotate the steel plate to be hoisted manually, which can facilitate welding and grinding of the steel plate to be hoisted, and can replace the role of the welding platform to a certain extent.

[0023] 4. This application is equipped with an automatic anti-drop locking function for the sling, and does not require manual operation, which greatly improves safety.

[0024] 5. The structure of this device is suitable for different types of PCCP socket steel plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the anti-dropping interface ring lifting device according to an embodiment of the utility model;

[0027] Figure 2 for Figure 1 The AA cross-sectional schematic diagram;

[0028] Figure 3 for Figure 1 The schematic diagram of the BB cross section;

[0029] Figure 4 A schematic diagram of placing the anti-drop interface ring lifting device according to an embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of the use of the anti-slip interface ring lifting device described in an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1. Upper lifting ring; 2. Return lifting ring; 3. Adjusting rod; 4. Bearing; 5. Pressure rod; 6. Spring; 7. Upper spring fixing plate; 8. Connecting rod; 9. Lifting rod; 10. Pin seat; 11. Lower spring fixing plate; 12. Sliding hole; 13. Sliding sleeve; 14. Guide plate. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] like Figures 1 to 5 As shown, an anti-drop interface ring lifting device includes an upper lifting ring 1, a return lifting ring 2, and an automatic locking device. The upper lifting ring 1 is arranged on the return lifting ring 2, and the automatic locking assembly is arranged inside the return assembly. The automatic locking device includes a spring assembly and a connecting rod assembly; the spring assembly is arranged inside the return lifting ring 2, and the bottom of the spring assembly is connected to the connecting rod assembly, and the connecting rod assembly is slidably arranged on one side of the return lifting ring 2; the connecting rod assembly includes a connecting rod 8 and a lifting rod 9, one side of the connecting rod 8 is rotatably connected to the spring assembly, and the other end of the connecting rod 8 is rotatably connected to the bottom of the lifting rod 9, and the lifting rod 9 is slidably arranged in the return lifting ring 2; one side of the return lifting ring 2 is provided with an opening that allows the steel plate to be lifted to pass through, and the bottom of the return lifting ring 2 is provided with a pin seat 10 corresponding to the lifting rod 9. The steel plate to be lifted is a PCCP socket steel plate.

[0036] The spring assembly includes a pressure rod 5, an upper spring connecting plate 7, an upper spring connecting plate 11, and a spring 6. The upper spring connecting plate 7 and the upper spring connecting plate 11 are arranged at both ends of the spring 6; the bottom of the pressure rod 5 is vertically arranged on the upper part of the upper spring connecting plate 7;

[0037] A sliding sleeve 13 is provided inside the return ring 2, and the upper spring connecting plate 7 is slidably arranged in the sliding sleeve 13; a through hole is provided on the return ring 2 to allow the spring 6 to pass through, a guide plate 14 is provided inside the return ring 2, a sliding groove is provided on the guide plate 14, and the upper spring connecting plate 11 is slidably arranged on the sliding groove of the guide plate 14. The return ring 2 is provided with a sliding hole 12 to allow the lifting rod 9 to slide; the lifting rod 9 is slidably arranged in the return ring 2 through the sliding hole 12, and the sliding hole 12 is arranged on one side of the opening of the return ring 2;

[0038] The circular lifting ring 2 is provided with a through groove that enables the connecting rod 8 to move up and down. The connecting rod 8 can move in the through groove of the circular lifting ring 2. The circular lifting ring 2 is a hollow structure. An adjusting rod 3 is provided in the circular lifting ring 2. The two ends of the adjusting rod 3 are arranged on both sides of the circular lifting ring 2. A plurality of bearings 4 are rotatably arranged on the adjusting rod 3. The steel plate to be hoisted is arranged above the bearing 4. The operator can change the position of the steel plate to be hoisted by rotating the bearing 4. The matching bearing 4 cooperates with manual rotation of the steel plate to be hoisted, which can facilitate welding and grinding of the steel plate to be hoisted, and can replace the role of the welding platform to a certain extent. The height of the bearing 4 corresponds to the height of the sleeve 13, or the height of the sleeve 13 is lower than the height of the bearing 4. Specific implementation method:

[0040] After the PCCP interface ring operation is completed, the crane can be driven to the operation area and close to the PCCP socket steel plate. The PCCP socket steel plate is placed into the return ring 2. Figure 4 , Figure 5 As shown, the upper lifting ring 1 is connected to the hook of the lifting device, the PCCP socket steel plate moves downward, driving the pressure rod 5 to move downward, the pressure rod 5 drives the spring 6 to move downward along the sliding sleeve 13, the spring 6 drives the connecting rod 8 to move, the connecting rod 8 drives the lifting rod 9 to move upward along the sliding space, so that the lifting rod 9 cooperates with the pin space of the return lifting ring 2 to automatically lock the sling.

[0041] When the PCCP socket steel plate needs to be lowered, the PCCP socket steel plate is removed. At this time, the pressure rod 5 is no longer under force, and the spring 6 moves upward and then automatically recovers. The connecting rod 8 drives the lifting rod 9 to descend under the action of the spring 6 and can be directly removed. When the PCCP socket steel plate needs to be welded, polished, or drilled, the bearing 4 provided by this device can be used to rotate the interface ring, which is convenient for welding the interface ring on the PCCP socket steel plate, polishing the weld, etc., and can replace the welding and polishing platform to a certain extent. During the production process of the interface ring, frequent lifting and placing operations are required, and it must be transferred between various equipment. The use of a new lifting device is suitable for PCCP socket steel plates of various specifications and models.

[0042] 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 should be included in the protection scope of the present invention.

Claims

1. An anti-drop interface ring lifting device, characterized in that: It includes an upper lifting ring, a return lifting ring, and an automatic locking device. The upper lifting ring is arranged on the return lifting ring, and the automatic locking component is arranged inside the return component. The automatic locking device comprises a spring assembly and a connecting rod assembly; the spring assembly is arranged in the return type lifting ring, the bottom of the spring assembly is connected to the connecting rod assembly, and the connecting rod assembly is slidably arranged on one side of the return type lifting ring; The connecting rod assembly includes a connecting rod and a lifting rod. One side of the connecting rod is movably connected to the spring assembly, and the other end of the connecting rod is movably connected to the bottom of the lifting rod. The lifting rod is slidably arranged in a return-shaped lifting ring. One side of the loop-shaped lifting ring is provided with an opening through which the steel plate to be lifted can pass, and the bottom of the loop-shaped lifting ring is provided with a pin seat corresponding to the lifting rod.

2. The anti-drop interface ring lifting device according to claim 1, characterized in that: The spring assembly comprises a pressure rod, an upper spring connecting plate, a lower spring connecting plate, and a spring, wherein the upper spring connecting plate and the lower spring connecting plate are arranged at both ends of the spring; the bottom of the pressure rod is vertically arranged on the upper part of the upper spring connecting plate; A sliding sleeve is arranged inside the return lifting ring, and the upper spring connecting plate is slidably arranged in the sliding sleeve; A through hole is arranged on the return type lifting ring for allowing the spring to pass through, a guide plate is arranged inside the return type lifting ring, a sliding groove is arranged on the guide plate, and a lower spring connecting plate is slidably arranged on the sliding groove of the guide plate.

3. The anti-drop interface ring lifting device according to claim 1, characterized in that: The return-shaped lifting ring is provided with a sliding hole capable of sliding the lifting rod; the lifting rod is slidably arranged in the return-shaped lifting ring through the sliding hole, and the sliding hole is arranged on one side of the opening of the return-shaped lifting ring.

4. The anti-dropping interface ring lifting device according to claim 1, characterized in that: A through slot is provided on the return lifting ring so that the connecting rod can move up and down, and the connecting rod can move in the through slot of the return lifting ring.

5. The anti-drop interface ring lifting device according to claim 1, characterized in that: An adjusting rod is arranged inside the circular lifting ring, two ends of the adjusting rod are arranged on two sides inside the circular lifting ring, and a plurality of bearings are rotatably arranged on the adjusting rod.

6. The anti-drop interface ring lifting device according to claim 5, characterized in that: The height of the bearing corresponds to the height of the sleeve, or the height of the sleeve is lower than the height of the bearing.

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