An assembly structure of a taper cement pole and a flange
By combining the base steel rod, connecting flange, and protective components, the problem of difficult disassembly caused by rust on nuts and bolts during maintenance and replacement of tapered cement rods and flange connections is solved, enabling rapid disassembly and maintenance and extending the service life of the components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LUJIA ELECTRIC POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-29
AI Technical Summary
The existing tapered cement pole and flange connection is prone to corrosion during maintenance and replacement because the nuts and bolts are exposed to the outside environment for a long time, making disassembly difficult and requiring a lot of physical labor from construction workers.
It adopts a combination structure of base steel rod, connecting flange, plug-in fixing component and protective component. The knob design enables quick disassembly and assembly. The protective shell fully covers the flange connection to prevent moisture and dust intrusion and extend the service life of the components.
It enables rapid disassembly and maintenance, reduces the time and physical exertion of operators, extends the service life of components, and prevents corrosion at threaded connections.
Smart Images

Figure CN224301183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tapered cement pole technology, specifically to an assembly structure of a tapered cement pole and a flange. Background Technology
[0002] The tapered cement flange is a composite structure combining tapered cement rods and flange connection technology. The tapered rod features a gradually decreasing diameter at the bottom and top, meeting the anti-overturning design requirements in engineering mechanics. By expanding the bottom contact area, it disperses pressure and reduces the risk of foundation settlement, making it widely used in power, telecommunications, railway, and petroleum industries.
[0003] The existing assembly structure of tapered cement poles and flanges requires cleaning the bottom of the cement pole and the flange contact surface to ensure it is free of mud and sand and uneven. Then, welding is performed at the connection between the outer flange and the bottom of the cement to ensure the stability of the connection. Finally, concrete is poured to fill the gaps. This connection method enhances stability, but in practical applications, the connection between the tapered cement pole and flange requires maintenance. If cracks or instability occur, maintenance or replacement is necessary. However, during replacement, the connecting nuts and bolts, due to long-term exposure to the external environment, are prone to rust and other corrosion, making it difficult to loosen the threads connecting the nuts and bolts. This results in lengthy disassembly times and requires considerable physical effort from construction workers. Utility Model Content
[0004] This utility model provides an assembly structure for a tapered cement pole and flange, which has the advantage of preventing rust on the connecting threads and nuts of the flange and cement column. This solves the problem of existing tapered cement pole and flange assembly structures requiring cleaning of the bottom of the cement pole and the flange contact surface to ensure no mud or unevenness, followed by welding the connection between the outer flange and the bottom of the cement to ensure connection stability, and then filling the gaps with concrete. While this connection method enhances stability, in practical applications, the connection between the tapered cement pole and flange requires maintenance. If cracks or instability occur, maintenance or replacement is necessary. However, during replacement, the connecting nuts and bolts, long-term exposure to the external environment, are prone to rust and corrosion, making it difficult to loosen the threads connecting the nuts and bolts, resulting in lengthy disassembly times and high labor costs for construction workers.
[0005] To prevent rusting of the connecting threads and nuts between the protective flange and the cement column, this utility model provides the following technical solution: an assembly structure of a tapered cement rod and a flange, including a base steel rod, a connecting flange installed on the top surface of the base steel rod, the base steel rod being a plurality of bases arranged in a ring array at the construction site of the tapered cement column, the top end of the base steel rod being threaded, the base steel rod being fixedly connected to the connecting flange through the threaded connection of the base nut, and the cement rod being installed on the top surface of the connecting flange.
[0006] As a preferred technical solution of this utility model, a plug-in fixing component is installed on the top surface of the connecting flange. The plug-in fixing component includes a connecting groove, which is opened on the top surface of the connecting flange. A replacement plate that can be adapted to the sinking height of the cement pole is machined on the inner wall of the connecting groove.
[0007] As a preferred technical solution of this utility model, the plug-in fixing assembly further includes an insertion head and a supporting steel column. The insertion head consists of two top and bottom surfaces for installing and replacing the plate, respectively. The replacement plate is connected to the connecting slot through the insertion head installed on the bottom surface, and the replacement plate is fixedly connected to the cement pole through the insertion head installed on the top surface.
[0008] As a preferred embodiment of this utility model, the supporting steel columns are arranged in a ring array and installed on the inner wall of the cement pole. The bottom end of the supporting steel columns is threaded with a fixing nut, and the supporting steel columns are fixedly connected to the connecting flange through the fixing nut.
[0009] As a preferred technical solution of this utility model, the protective component includes an extension plate, and there are several extension plates. Every two extension plates are arranged in a ring array and installed on the outer surface of the connecting flange. A slotted plate is installed on one side of the extension plate, and a locking block is rotatably connected to the inner wall of each group of slotted plates. A rotating column is installed on one side of the locking block.
[0010] As a preferred technical solution of this utility model, a limiting plate is fixedly installed on the outer surface of each rotating column, a main protective shell for protecting the wall threads and nuts inside the connecting flange is installed at one end of each rotating column, a main limiting plate is installed on the inner wall of each protective shell, a knob is installed at the other end of each rotating column, and a groove is opened on the outer surface of each protective shell, with each groove on the outer surface of the protective shell corresponding to a knob.
[0011] As a preferred technical solution of this utility model, the outer surface of the connecting flange is provided with multiple slots, and each of the protective shells corresponds to a slot on the outer surface of the connecting flange. The protective shell is inserted into the inner wall of the slot on the outer surface of the connecting flange.
[0012] Compared with the prior art, this utility model provides an assembly structure for a tapered cement rod and a flange, which has the following advantages:
[0013] The assembly structure of this tapered cement rod and flange allows for quick assembly and disassembly via a knob design using a protective shell, solving the problem of difficult disassembly caused by the corrosion of traditional bolts. The replacement plate adopts an insert design, and height adjustment requires no measurement. Furthermore, the protective shell fully covers the flange connection, preventing moisture and dust intrusion, extending the service life of components, and preventing corrosion at threaded connections, significantly reducing the time required for replacement, disassembly, and maintenance. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the connecting flange structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of the cement pole of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the connecting parts on the outer side of the connecting flange of this utility model;
[0018] Figure 5 This is a schematic diagram of the overall structure of the protective component of this utility model;
[0019] Figure 6 This is a schematic diagram of the internal structure of the protective component of this utility model.
[0020] In the diagram: 1. Base steel rod; 10. Connecting flange; 11. Base nut; 12. Cement rod; 2. Insertion fixing assembly; 20. Connecting slot; 21. Replacement plate; 22. Insert head; 23. Support steel column; 24. Fixing nut; 3. Protective assembly; 30. Extension plate; 31. Slot plate; 32. Locking block; 33. Rotating column; 34. Limiting plate; 35. Protective shell; 36. Main limiting plate; 37. Knob. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0022] Please see Figures 1-2 This utility model discloses an assembly structure for a tapered cement rod and a flange, including a base steel rod 1, a connecting flange 10 mounted on the top surface of the base steel rod 1, a plug-in fixing assembly 2 mounted on the top surface of the connecting flange 10, and a protective assembly 3 mounted on the outer surface of the connecting flange 10, wherein:
[0023] The plug-in fixing assembly 2 includes a connecting slot 20, which is opened on the top surface of the connecting flange 10. The inner wall of the connecting slot 20 is machined with a replacement plate 21 that can be adapted according to the sinking height of the cement pole.
[0024] It should be noted that the bottom inner wall of cement pole 12 and the top surface of cement pole 19 are provided with connecting slots 20 that cooperate with the insertion head 22, and the thickness of the replacement plate 21 can be selected according to the cement pole replacement requirements.
[0025] The protective assembly 3 includes an extension plate 30. There are several extension plates 30, and two extension plates 30 are arranged in a ring array and installed on the outer surface of the connecting flange 10. A slotted plate 31 is installed on one side of the extension plate 30. A locking block 32 is rotatably connected to the inner wall of each set of slotted plates 31. A rotating column 33 is installed on one side of the locking block 32. A main protective shell 35 for protecting the wall threads and nuts inside the connecting flange 10 is installed at one end of the rotating column 33.
[0026] Furthermore, the base steel rod 1 consists of several bases arranged in a ring array installed at the construction site of the conical cement column. The top of the base steel rod 1 is threaded, and the base steel rod 1 is fixedly connected to the connecting flange 10 through the threaded connection of the base nut 11. A cement rod 12 is installed on the top surface of the connecting flange 10.
[0027] It should be noted that the base steel rod 1 is connected to the cement foundation pre-embedded in the ground, and the connecting flange 10 is fixed to the upper part of the base steel rod 1 by the base nut 11 to maintain a stable connection.
[0028] Furthermore, the plug-in fixing assembly 2 also includes an insertion head 22 and a supporting steel column 23. The insertion head 22 consists of two parts: the top surface and the bottom surface of the replacement plate 21, which are respectively installed and replaced. The replacement plate 21 is connected to the connecting slot 20 through the insertion head 22 installed on the bottom surface, and the replacement plate 21 is fixedly connected to the cement pole 12 through the insertion head 22 installed on the top surface.
[0029] Evenly wrap the base steel rod 1 around the construction position and connect it to the bottom of the flange with nuts. Adjust the flange to ensure it is level. Use tools to assist in centering and initially tighten the nuts. Based on the settlement of the cement pole 12, select a replacement plate 21 of appropriate thickness and insert its bottom into the groove at the top of the flange, with the top aligning with the bottom of the cement pole 12. Ensure the replacement plate 21 fits tightly against the flange and cement pole 12. Evenly insert multiple support steel columns 23 into the inner wall of the cement pole 12 and secure them to the bottom of the flange with nuts to ensure stable support. Adjust the position of the steel columns to keep the cement pole 12 vertical. Align the protective shell 35 with the groove on the outside of the flange and insert it. Rotate the knob 37 on the shell to engage the internal locking block 32 with the groove. Confirm that the protective shell 35 completely covers the flange threads and nuts, forming a sealed protection. Example 2
[0030] Based on the above embodiment 1, please refer to Figures 3-6 The supporting steel columns 23 are arranged in a ring array and installed on the inner wall of the cement pole 12. The bottom end of the supporting steel columns 23 is threaded with a fixing nut 24, and the supporting steel columns 23 are fixedly connected to the connecting flange 10 through the fixing nut 24.
[0031] Furthermore, the protective assembly 3 also includes a limiting plate 34, a limiting plate 34 is fixedly installed on the outer surface of each rotating column 33, a limiting plate 34 is installed on the outer surface of each rotating column 33, a main limiting plate 36 is installed on the inner wall of each protective shell 35, and a knob 37 is installed at the other end of each rotating column 33.
[0032] Furthermore, the outer surface of the connecting flange 10 is provided with multiple slots, and each protective shell 35 corresponds to a slot on the outer surface of the connecting flange 10. The protective shell 35 is inserted into the inner wall of the slot on the outer surface of the connecting flange 10.
[0033] Furthermore, each protective shell 35 has a groove on its outer surface, and each groove on the outer surface of the protective shell 35 corresponds to a knob 37.
[0034] It should be noted that when the inner walls of the two slot plates 31 are horizontal with the locking block 32, the locking block 32 is rotated to the inner wall of the slot plate 31. At this time, due to the limiting effect of the limiting plate 34 and the main limiting plate 36, the locking block 32 will not be rotated out of the inner wall of the slot plate 31.
[0035] Rotate knob 37 on protective housing 35 to release the locking of block 32 and slot, easily removing protective housing 35. No additional tools are required; this can be done quickly by one person. Loosen base nut 11, adjust the height of steel rod or replace damaged parts, and retighten the nut to the appropriate force. Use tools to automatically control the tightening force, avoiding overtightening or loosening. Pull out the old replacement plate 21, insert the new plate, and adjust the height to ensure the cement pole 12 remains vertical. Select the replacement plate 21 of the appropriate thickness according to the sinking height; no complicated measurements are required. Reinstall protective assembly 3, reinsert it into protective housing 35, and rotate knob 37 to lock it, ensuring the sealing ring fits tightly with the slot to prevent external corrosion.
[0036] It should be noted that a rubber ring can be installed at the gap where the outer side of the protective shell 35 fits with the connecting flange 10 to prevent water corrosion. The protective shell can also be made of corrosion-resistant material.
[0037] The working principle and usage process of this utility model are as follows: The base steel rod 1 is evenly wrapped around the construction position, and connected to the bottom of the flange using nuts. The flange is adjusted to ensure it is level. Tools are used to assist in centering, and the nuts are initially tightened.
[0038] Adjust the plug-in assembly: Based on the sinking of the cement pole 12, select a replacement plate 21 of appropriate thickness, insert its bottom into the groove at the top of the flange, and align its top with the bottom of the cement pole 12. Ensure that the replacement plate 21 fits tightly against the flange and the cement pole 12.
[0039] Fixed support structure: Multiple supporting steel columns 23 are evenly inserted into the inner wall of the cement pole 12 and tightened to the bottom of the flange with nuts to ensure stable support. Adjust the position of the steel columns to keep the cement pole 12 vertical.
[0040] Install protective component 3: Align the protective housing 35 with the groove on the outside of the flange and insert it. Rotate the knob 37 on the housing to engage the internal locking block 32 with the groove. Ensure that the protective housing 35 completely covers the flange threads and nuts to form a sealed protection.
[0041] Removing the protective shell 35: Rotate the knob 37 on the protective shell 35 to release the locking of the latch 32 and the slot, and easily remove the protective shell 35. No additional tools are required, and it can be done quickly by one person.
[0042] Adjusting the base steel rod 1: Loosen the base nut 11, adjust the height of the steel rod or replace the damaged part, and retighten the nut to the appropriate force. Use tools to automatically control the tightening force to avoid overtightening or loosening.
[0043] Replace the connector plate: Remove the old replacement plate 21, insert the new plate and adjust the height to ensure the cement pole 12 remains vertical. Select the replacement plate 21 of the appropriate thickness according to the sinking height; no complicated measurements are required. Reinstall the protective assembly 3, reinsert the protective shell 35 and rotate the knob 37 to lock it, ensuring the sealing ring fits tightly with the groove to prevent external corrosion.
Claims
1. An assembly structure of a tapered cement rod and a flange, comprising a base steel rod (1), wherein a connecting flange (10) is mounted on the top surface of the base steel rod (1), characterized in that: The top surface of the connecting flange (10) is equipped with a plug-in fixing assembly (2), and the outer surface of the connecting flange (10) is equipped with a protective assembly (3), wherein: The plug-in fixing assembly (2) includes a connecting slot (20), which is opened on the top surface of the connecting flange (10), and the inner wall of the connecting slot (20) is machined with a replacement plate (21) that can be adapted according to the sinking height of the cement pole. The protective component (3) includes an extension plate (30), and there are several extension plates (30). Every two extension plates (30) are arranged in a ring array and installed on the outer surface of the connecting flange (10). A slotted plate (31) is installed on one side of the extension plate (30). A locking block (32) is rotatably connected to the inner wall of each set of slotted plates (31). A rotating column (33) is installed on one side of the locking block (32). A main protective shell (35) for protecting the wall threads and nuts inside the connecting flange (10) is installed at one end of the rotating column (33).
2. The assembly structure of a tapered cement rod and flange according to claim 1, characterized in that: The base steel rod (1) consists of several bases arranged in a ring array and installed at the construction site of the conical cement column. The top of the base steel rod (1) is threaded. The base steel rod (1) is fixedly connected to the connecting flange (10) through the threaded connection of the base nut (11). The top surface of the connecting flange (10) is equipped with a cement rod (12).
3. The assembly structure of a tapered cement rod and flange according to claim 1, characterized in that: The plug-in fixing assembly (2) also includes an insertion head (22) and a supporting steel column (23). The insertion head (22) consists of two top and bottom surfaces of the mounting and replacement plate (21) respectively. The replacement plate (21) is connected to the connecting slot (20) through the insertion head (22) mounted on the bottom surface. The replacement plate (21) is fixedly connected to the cement pole (12) through the insertion head (22) mounted on the top surface.
4. The assembly structure of a tapered cement rod and flange according to claim 3, characterized in that: The supporting steel columns (23) are a number of them arranged in a ring array and installed on the inner wall of the cement pole (12). The bottom end of the supporting steel column (23) is threaded with a fixing nut (24), and the supporting steel column (23) is fixedly connected to the connecting flange (10) through the fixing nut (24).
5. The assembly structure of a tapered cement rod and flange according to claim 1, characterized in that: The protective assembly (3) also includes a limiting plate (34), a limiting plate (34) is fixedly installed on the outer surface of each of the rotating columns (33), a limiting plate (34) is installed on the outer surface of each of the rotating columns (33), a main limiting plate (36) is installed on the inner wall of each of the protective shells (35), and a knob (37) is installed at the other end of each of the rotating columns (33).
6. The assembly structure of a tapered cement rod and flange according to claim 5, characterized in that: The outer surface of the connecting flange (10) has multiple slots, and each protective shell (35) corresponds to a slot on the outer surface of the connecting flange (10). The protective shell (35) is inserted into the inner wall of the slot on the outer surface of the connecting flange (10).
7. The assembly structure of a tapered cement rod and flange according to claim 5, characterized in that: Each of the protective shells (35) has a groove on its outer surface, and each groove on the outer surface of the protective shell (35) corresponds to a knob (37).