Steel pipe support cutting device for traffic sign post production

By designing an automated steel pipe support cutting device, which utilizes guide holes and support plates for guidance, and combines a drive motor and lifting mechanism, the error problem caused by manual hand-held cutting is solved, and efficient and precise cutting of inspection holes for traffic sign pole steel pipes is achieved.

CN121820757APending Publication Date: 2026-04-10XUZHOU SHANGBO TRANSPORTATION FACILITIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-09
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In existing technologies, manual hand-cutting of inspection holes in traffic sign pole steel pipes suffers from significant errors and unstable cutting.

Method used

A cutting device for steel pipe supports used in the production of traffic sign poles was designed. It adopts a cutting frame and guide hole structure, uses a support plate to support the cutting machine and cutting blade, guides the sliding cutting through the guide ring groove, and realizes automated cutting by combining a drive motor and a lifting mechanism. The cutting frame is fixed by a rubber elastic rod and an electromagnet to ensure cutting accuracy and stability.

Benefits of technology

It enables automated cutting of precise inspection holes without manual handling, avoiding cutting errors, improving cutting efficiency and stability, and simplifying the operation process.

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Abstract

The invention discloses a steel pipe support cutting device for traffic sign post production, and belongs to the field of sign post steel pipe production. A steel pipe support cutting device for traffic sign post production comprises a cutting frame, the cutting frame is attached to a steel pipe in a covering mode, a guide hole is formed in the cutting frame, a guide ring groove is formed in the side wall of the guide hole, a supporting plate is connected to the guide ring groove in a sliding mode, and a cutting machine is connected to the supporting plate. The cutting machine is fixedly connected to a cutting blade; the cutting machine and the cutting blade are supported through the supporting plate, manual hand holding is not needed, during cutting, the supporting plate can be manually pushed for sliding cutting, and the manhole is cut through the guiding effect of the guiding ring groove in the guiding hole.
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Description

Technical Field

[0001] This invention relates to the field of steel pipe manufacturing technology for traffic sign poles, and more particularly to a steel pipe support cutting device for traffic sign pole manufacturing. Background Technology

[0002] Traffic sign poles are an indispensable infrastructure in the highway traffic system. They serve as the supporting framework for traffic signs, ensuring that traffic signs can be stably and securely installed at the prescribed locations, heights, and angles, providing road condition information, as well as corresponding traffic lights, traffic cameras, and traffic violation records.

[0003] Traffic sign poles, which support signs, traffic lights, and other similar equipment, typically use steel pipe brackets to support the facilities. The steel pipes reduce the overall weight of the poles and also facilitate the connection of electrical wires and control lines, especially for traffic lights.

[0004] To facilitate the inspection of some traffic signs, an inspection hole is usually opened on the bottom side of the steel pipe support of the sign pole. The inspection hole is usually cut out by a cutting machine after the steel pipe is formed as a whole. Currently, the cutting method is mostly to mark the lines and then cut manually with a hand-held cutting machine. Manual hand-held cutting of tubular structures may be unstable, leading to cutting errors, excessive cutting, or tilting. Summary of the Invention

[0005] The purpose of this invention is to solve the problem of large errors in manual hand-cutting of inspection holes in the prior art, and to propose a steel pipe support cutting device for the production of traffic sign poles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A steel pipe support cutting device for traffic sign pole production includes a cutting frame, the cutting frame being attached to a steel pipe, a guide hole being provided on the cutting frame, a guide ring groove being provided on the side wall of the guide hole, a support plate being slidably connected to the guide ring groove, a cutting machine being connected to the support plate, and a cutting blade being fixedly connected to the cutting machine. The guide hole is shaped like a marker rod inspection hole. When the inspection hole is cut, the support plate drives the cutting machine to slide in the guide ring groove on the side wall of the guide hole. The cutting machine drives the cutting blade to cut the steel pipe and cut out the inspection hole.

[0007] In order to drive the cutting machine to move, preferably, a drive motor is fixedly connected to the bottom side of the support plate, a drive gear is fixedly connected to the drive end of the drive motor, and gear teeth are provided on the side wall of the guide hole, and the drive gear meshes with the gear teeth.

[0008] To ensure that the support plate slides in the guide ring groove, preferably, a guide slider corresponding to the guide ring groove is fixedly connected to the support plate.

[0009] To achieve the lifting and lowering of the cutting machine, preferably, the lifting and lowering mechanism of the cutting machine is mounted on a support plate, the support plate has a lifting groove, a lifting block is slidably connected in the lifting groove, and the cutting machine is fixedly connected to the lifting block.

[0010] Furthermore, a lifting rod is fixedly connected to the lifting block, and a spring is sleeved on the lifting rod.

[0011] To facilitate the removal of the cut steel pipe segments, preferably, a rotating shaft is rotatably connected to the cutting frame, a force spring is fitted on the rotating shaft, and the two ends of the force spring are fixedly connected to the cutting frame and the rotating shaft respectively. A rubber elastic rod is fixedly connected to the rotating shaft, and a rubber hammer is fixedly connected to the end of the rubber elastic rod.

[0012] To achieve a stable cutting frame, at least one set of the rotating shaft, spring, rubber elastic rod and rubber hammer are symmetrically arranged, and the rubber hammer is internally and fixedly connected to an electromagnet; After the cutting frame is placed on the steel pipe, the rotating shaft is rotated and a set of symmetrical rubber elastic rods and rubber hammers are pulled around to the bottom side of the steel pipe. The electromagnets are energized and attracted to the bottom side of the steel pipe, or the symmetrical set of electromagnets attract each other, thus fixing the cutting frame on the steel pipe.

[0013] To facilitate a more stable clamping of the cutting frame, a clamping frame is fixedly connected to the cutting frame, an arc-shaped clamping plate is slidably connected to the clamping frame, a gear sleeve is fixedly sleeved on the rotating shaft, and a rack is fixedly connected to the arc-shaped clamping plate, with the gear sleeve meshing with the rack.

[0014] To facilitate the movement of the cutting frame, preferably, a telescopic cylinder is fixedly connected to the bottom side of the cutting frame, a telescopic rod is telescopically connected in the telescopic cylinder, a universal ball bearing is rotatably connected on the telescopic rod, the universal ball bearing abuts against the steel pipe, and a compression spring is provided between the telescopic rod and the telescopic cylinder.

[0015] Compared with the prior art, the present invention provides a steel pipe support cutting device for the production of traffic sign poles, which has the following advantages: The steel pipe support cutting device for traffic sign pole production allows the cutting machine and cutting blade to be placed in the support plate of the guide hole. The support plate supports the cutting machine and cutting blade, eliminating the need for manual handling. During cutting, the support plate can be manually pushed to slide and cut, and the inspection hole is cut out by using the guiding ring groove on the guide hole.

[0016] By rotating the rotating shaft and pulling a symmetrical set of rubber elastic rods and rubber hammers around to the bottom of the steel pipe, a symmetrical set of electromagnets are attracted to the bottom of the steel pipe, thus fixing the cutting frame on the steel pipe for cutting.

[0017] By pulling the rubber elastic rod and rotating the rubber hammer to tighten the force spring, and then quickly releasing it, the elastic rod 18 and the rubber hammer 19 are driven to smash the cut steel pipe segment by the rebound action of the force spring, knocking the steel pipe segment off the inspection hole. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of the present invention; Figure 2 This is one of the cross-sectional structural schematic diagrams of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A; Figure 4 This is the second structural schematic diagram of the present invention; Figure 5 This is the third structural schematic diagram of the present invention; Figure 6 This is a second schematic diagram of the cross-sectional structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point B; Figure 8 For the present invention Figure 6 Schematic diagram of the structure at point C; 1. Cutting frame; 101. Opening; 2. Steel pipe; 3. Guide hole; 4. Guide ring groove; 5. Support plate; 6. Cutting machine; 7. Cutting disc; 8. Guide slider; 9. Lifting block; 10. Lifting groove; 11. Lifting rod; 12. Spring; 13. Drive motor; 14. Drive gear; 15. Gear tooth; 16. Rotating shaft; 17. Force spring; 18. Rubber elastic rod; 19. Rubber hammer; 20. Electromagnet; 21. Gear sleeve; 22. Clamping frame; 23. Rack and pinion; 24. Arc-shaped clamping plate; 25. Telescopic cylinder; 26. Telescopic rod; 27. Universal ball bearing; 28. Compression spring. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example

[0020] Reference Figure 1A steel pipe support cutting device for traffic sign pole production includes a cutting frame 1, which has a semi-circular structure and can be clamped onto a steel pipe 2. The cutting frame 1 is attached to the steel pipe 2. Since the steel pipe 2 of the traffic sign pole is generally narrower at the top and wider at the bottom during production to ensure stability after erection, the cutting frame 1 is first placed on the narrow part of the steel pipe, and then pushed to the wide end of the steel pipe 2, i.e., the lower end, for cutting and opening. The cutting frame 1 has a guide hole 3, and the side wall of the guide hole 3 has... The guide ring groove 4 and the support plate 5 are fixedly connected to the guide slider 8 corresponding to the guide ring groove 4. The support plate 5 is slidably connected to the guide ring groove 4. The cutting machine 6 is connected to the support plate 5. The cutting blade 7 is fixedly connected to the cutting machine 6. After the size of the guide hole 3 is preset, the cutting machine 6 and the cutting blade 7 can be placed in the support plate 5 of the guide hole 3. The support plate 5 supports the cutting machine 6 and the cutting blade. There is no need for manual handling. When cutting, the support plate 5 can be manually pushed to slide and cut. The inspection hole is cut out by using the guiding effect of the guide ring groove 4 on the guide hole 3.

[0021] Reference Figure 2 and Figure 3 The guide hole 3 is shaped like a marker rod inspection hole. When the inspection hole is cut, the support plate 5 drives the cutting machine 6 to slide in the guide ring groove 4 on the side wall of the guide hole 3. In actual operation, the cutting machine 6 is raised and lowered on the support plate 5 to move the cutting machine 6 and the cutting blade up and down, and then cut. The cutting machine 6 drives the cutting blade 7 to cut the steel pipe 2 and cut out the inspection hole, avoiding the problem of large size error in the inspection hole cutting caused by manual cutting.

[0022] Reference Figure 2 and Figure 3 In specific implementations, in some other embodiments, the sliding method of the support plate 5 and the cutting machine 6 can be as follows: a drive motor 13 is fixedly connected to the bottom side of the support plate 5, and a drive gear 14 is fixedly connected to the drive end of the drive motor 13. Gear teeth 15 are provided on the side wall of the guide hole 3. The drive gear 14 meshes with the gear teeth 15. The drive motor 13 drives the drive gear 14 to rotate. Under the meshing action of the gear teeth 15 around the side wall of the guide hole 3, the drive motor 13 will rotate around the guide hole 3 together with the support plate 5, thereby realizing the cutting.

[0023] Reference Figure 2 and Figure 3The cutting machine 6 is mounted on the support plate 5. The support plate 5 has a lifting groove 10. A lifting block 9 is slidably connected in the lifting groove 10. The cutting machine 6 is fixedly connected to the lifting block 9. A lifting rod 11 is fixedly connected to the lifting block 9. A spring 12 is sleeved on the lifting rod 11. When cutting, in order to facilitate cutting, the cutting machine 6 and the cutting blade 7 need to be moved up and down. This can be achieved by the lifting block 9 being slidably mounted in the lifting groove 10. When it is necessary to rise, the lifting rod 11 is pulled up to raise the machine. Example

[0024] Reference Figure 1 A steel pipe support cutting device for traffic sign pole production includes a cutting frame 1, which has a semi-circular structure and can be clamped onto a steel pipe 2. The cutting frame 1 is attached to the steel pipe 2. Since the steel pipe 2 of the traffic sign pole is generally narrower at the top and wider at the bottom during production to ensure stability after erection, the cutting frame 1 is first placed on the narrow part of the steel pipe, and then pushed to the wide end of the steel pipe 2, i.e., the lower end, for cutting and opening. The cutting frame 1 has a guide hole 3, and the side wall of the guide hole 3 has a guide... A guide slider 8 corresponding to the guide ring groove 4 is fixedly connected to the support plate 5. The support plate 5 is slidably connected to the guide ring groove 4. A cutting machine 6 is connected to the support plate 5. A cutting blade 7 is fixedly connected to the cutting machine 6. After the size of the guide hole 3 is preset, the cutting machine 6 and the cutting blade 7 can be placed in the support plate 5 of the guide hole 3. The support plate 5 supports the cutting machine 6 and the cutting blade 7. There is no need for manual handling. When cutting, the support plate 5 can be manually pushed to slide and cut. The inspection hole is cut out by using the guiding effect of the guide ring groove 4 on the guide hole 3.

[0025] Reference Figure 2 and Figure 3 The guide hole 3 is shaped like a marker rod inspection hole. When the inspection hole is cut, the support plate 5 drives the cutting machine 6 to slide in the guide ring groove 4 on the side wall of the guide hole 3. In actual operation, the cutting machine 6 is raised and lowered on the support plate 5 to move the cutting machine 6 and the cutting blade 7 up and down, and then cut. The cutting machine 6 drives the cutting blade 7 to cut the steel pipe 2 and cut out the inspection hole, avoiding the problem of large size error in the inspection hole cutting caused by manual cutting.

[0026] Reference Figure 2 and Figure 3In specific implementations, in some other embodiments, the sliding method of the support plate 5 and the cutting machine 6 can be as follows: a drive motor 13 is fixedly connected to the bottom side of the support plate 5, and a drive gear 14 is fixedly connected to the drive end of the drive motor 13. Gear teeth 15 are provided on the side wall of the guide hole 3. The drive gear 14 meshes with the gear teeth 15. The drive motor 13 drives the drive gear 14 to rotate. Under the meshing action of the gear teeth 15 around the side wall of the guide hole 3, the drive motor 13 will rotate around the guide hole 3 together with the support plate 5, thereby realizing the cutting.

[0027] Reference Figure 2 and Figure 3 The cutting machine 6 is mounted on the support plate 5. The support plate 5 has a lifting groove 10. A lifting block 9 is slidably connected in the lifting groove 10. The cutting machine 6 is fixedly connected to the lifting block 9. A lifting rod 11 is fixedly connected to the lifting block 9. A spring 12 is sleeved on the lifting rod 11. When cutting, in order to facilitate cutting, the cutting machine 6 and the cutting blade 7 need to be moved up and down. This can be achieved by the lifting block 9 being slidably mounted in the lifting groove 10. When it is necessary to rise, the lifting rod 11 is pulled up to raise the machine.

[0028] Reference Figure 4 In practice, because the cutting blade 7 moves up and down to cut, some fibrous strands inevitably remain uncut during the cutting process. Therefore, after cutting, the cut steel pipe segments need to be manually knocked off. In this implementation plan, the following method is used to knock them off: A rotating shaft 16 is rotatably connected to the cutting frame 1, and a force spring 17 is fitted on the rotating shaft 16. The two ends of the force spring 17 are fixedly connected to the cutting frame 1 and the rotating shaft 16, respectively. A rubber elastic rod 18 is fixedly connected to the rotating shaft 16, and a rubber hammer 19 is fixedly connected to the end of the rubber elastic rod 18. After cutting, the rubber elastic rod 18 and the rubber hammer 19 are pulled to rotate the rotating shaft 16 to tighten the force spring 17, and then quickly released. Under the rebound action of the force spring 17, the rotating shaft 16 rotates rapidly, thereby driving the rubber elastic rod 18 and the rubber hammer 19 to smash the cut steel pipe segments, knocking the steel pipe segments off the inspection hole.

[0029] Reference Figure 4 , Figure 5 and Figure 6It should be noted again that in some other embodiments, specifically, the cutting process needs to ensure that the cutting frame 1 is stable on the steel pipe 2. To achieve this stability, the following scheme is adopted: at least one set of rotating shaft 16, force spring 17, rubber elastic rod 18, and rubber hammer 19 are symmetrically arranged. The rubber hammer 19 has an electromagnet 20 fixedly connected inside. After the cutting frame 1 is placed on the steel pipe 2, after the cutting frame 1 is moved to the cutting position, in order to ensure the stability of the cutting frame 1, the rotating shaft 16 is rotated and the symmetrical set of rubber elastic rods 18 and rubber hammers 19 are pulled around to the bottom side of the steel pipe 2. The symmetrical set of electromagnets 20 attract each other and fix the cutting frame 1 on the steel pipe 2. It should be noted that the axis of rotation of the rotating shaft 16 is set in the lower half of the cutting frame 1 to ensure that the set of electromagnets 20 can be fixed at the lower end of the steel pipe 2, and at the same time, can hammer the cut inspection piece at the inspection hole.

[0030] After cutting, the energizing method of one of the electromagnets 20 is changed, altering its magnetic poles. This causes a set of rubber hammers 19 to quickly separate, and then, under the action of the force spring 17, they strike the cut steel pipe segment on the inspection hole. Simultaneously, because the electromagnet 20 has an attractive effect, it can attract the inspection segment after striking it, making it easy to remove the cut inspection segment from the inspection hole. Figure 5 As shown, in practical implementation, in order to ensure that the rubber elastic rod 18 springs towards the inspection piece, an opening 101 can be made on the cutting frame 1 to leave space for the rubber elastic rod 18. For another stable adsorption method, the electromagnet 20 is energized and adsorbed on the bottom side of the steel pipe 2. After the cutting is completed, all the electromagnets 20 are de-energized, and the rubber hammer 19 and the rubber elastic rod 18 are struck by the spring 17 to facilitate the removal of the inspection piece.

[0031] Reference Figure 6 and Figure 7 A clamping frame 22 is fixedly connected to the cutting frame 1, and an arc-shaped clamping plate 24 is slidably connected to the clamping frame 22. A gear sleeve 21 is fixedly sleeved on the rotating shaft 16, and a rack rod 23 is fixedly connected to the arc-shaped clamping plate 24. The gear sleeve 21 meshes with the rack rod 23. When the rotating shaft 16 rotates to fix the cutting frame 1, the rotating shaft 16 can drive the rack rod 23 to move through the gear sleeve 21. As a result, the rack rod 23 drives the arc-shaped clamping plate 24 to move towards the steel pipe 2, thereby further stabilizing the cutting frame 1.

[0032] Reference Figure 8A telescopic cylinder 25 is fixedly connected to the bottom side of the cutting frame 1. A telescopic rod 26 is telescopically connected in the telescopic cylinder 25. A universal ball bearing 27 is rotatably connected on the telescopic rod 26. The universal ball bearing 27 abuts against the steel pipe 2. A compression spring 28 is provided between the telescopic rod 26 and the telescopic cylinder 25. The telescopic rod 26 and the telescopic cylinder 25 can support the entire cutting frame 1. At the same time, the universal ball bearing 27 makes it easy to move the cutting frame 1.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A steel pipe support cutting device for traffic sign pole production, characterized by, Including cutting frame (1), the cutting frame (1) is pasted on the steel pipe (2), the cutting frame (1) is provided with guide hole (3), the side wall of guide hole (3) is provided with guide ring groove (4), the support plate (5) is slidably connected on the guide ring groove (4), the support plate (5) is connected with cutting machine (6), the cutting machine (6) is fixedly connected with cutting piece (7) on it; The guide hole (3) is shaped like a sign pole access hole, when cutting the access hole, the support plate (5) drives the cutting machine (6) to slide in the guide ring groove (4) of the side wall of the guide hole (3), the cutting machine (6) drives the cutting piece (7) to cut the steel pipe (2) and cut out the access hole.

2. The steel pipe support cutting device for traffic sign pole production according to claim 1, characterized by, The bottom side of the support plate (5) is fixedly connected with a drive motor (13), the drive end of the drive motor (13) is fixedly connected with a drive gear (14), the side wall of the guide hole (3) is provided with a gear tooth (15), the drive gear (14) is engaged with the gear tooth (15).

3. The steel pipe support cutting device for traffic sign pole production according to claim 1 or 2, characterized by, The support plate (5) is fixedly connected with a guide sliding block (8) corresponding to the guide ring groove (4).

4. The steel pipe support cutting device for traffic sign pole production according to claim 1 or 2, characterized by, The cutting machine (6) is arranged on the support plate (5) in a lifting manner, the support plate (5) is provided with a lifting groove (10), the lifting block (9) is slidably connected in the lifting groove (10), and the cutting machine (6) is fixedly connected with the lifting block (9).

5. The steel pipe support cutting device for traffic sign pole production according to claim 4, characterized by, The lifting block (9) is fixedly connected with a lifting rod (11), and the lifting rod (11) is sleeved with a spring (12).

6. The steel pipe support cutting device for traffic sign pole production according to claim 1, characterized by, The cutting frame (1) is rotatably connected with a rotating shaft (16), the rotating shaft (16) is sleeved with a strong spring (17), the two ends of the strong spring (17) are fixedly connected with the cutting frame (1) and the rotating shaft (16) respectively, the rotating shaft (16) is fixedly connected with a rubber elastic rod (18), and the end of the rubber elastic rod (18) is fixedly connected with a rubber hammer (19).

7. The steel pipe support cutting device for traffic sign pole production according to claim 6, characterized by, The rotating shaft (16), the strong spring (17), the rubber elastic rod (18) and the rubber hammer (19) are symmetrically provided with at least one group, and the rubber hammer (19) is fixedly connected with an electromagnet (20) inside. When the cutting frame (1) is placed on the steel pipe (2), the rotating shaft (16) is rotated, and a symmetric group of rubber elastic rods (18) and rubber hammers (19) are pulled around to the bottom side of the steel pipe (2), the electromagnet (20) is electrified and adsorbed on the bottom side of the steel pipe (2) or a symmetric group of electromagnets (20) are adsorbed to each other, so that the cutting frame (1) is fixed on the steel pipe (2).

8. The steel pipe support cutting device for traffic sign pole production according to claim 6, characterized by, The cutting frame (1) is fixedly connected with a clamping frame (22), and the clamping frame (22) is slidably connected with an arc-shaped clamping plate (24).

9. The steel pipe support cutting device for traffic sign pole production according to claim 8, characterized by, The rotating shaft (16) is fixedly sleeved with a gear sleeve (21), the arc-shaped clamping plate (24) is fixedly connected with a rack rod (23), and the gear sleeve (21) is engaged with the rack rod (23).

10. The steel pipe support cutting device for traffic sign pole production according to claim 8, characterized by, The cutting frame (1) is fixedly connected with an extension cylinder (25) at the bottom side, the extension cylinder (25) is connected with an extension rod (26) in an extension manner, the extension rod (26) is rotatably connected with a universal ball (27), the universal ball (27) is in abutment with the steel pipe (2), and the extension rod (26) is provided with a compression spring (28) between the extension cylinder (25).