Straightening device for steel pipes for steel pipe processing
Patent Information
- Application Number
- CN202521110669.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-06-03
Smart Images

Figure CN224406105U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of straightening devices, specifically relating to a steel pipe straightening device for steel pipe processing. Background Technology
[0002] Steel pipe poles are a common structural material with good strength, corrosion resistance, and compressive strength. They are widely used in construction and infrastructure projects, such as bridges, high-rise buildings, overpasses, guardrails, street lighting poles, traffic light poles, and surveillance camera support poles. In addition, steel pipe poles are also used in industrial fields such as pipeline systems for transporting fluids or gases and support structures for power transmission lines. When steel pipe poles are used as surveillance camera support poles, they are generally processed by bending, welding, and galvanizing thin steel plates to produce regular polygonal (e.g., regular octagonal or regular hexagonal) steel pipes. These pipes are not only long but also have thin walls (sometimes less than 2mm). Due to the geometric shape, the stress difference between the inner and outer parts of these long and thin pipes is significant, leading to localized stress concentration on the pipe wall. This stress concentration easily causes the pipe wall to bend. Therefore, how to solve the bending problem of the steel pipe before welding to avoid producing bent steel pipes that affect product quality is one of the problems that needs to be solved in the current steel pipe processing.
[0003] Chinese patent publication number CN220837303U discloses a steel pipe straightening device for steel pipe processing, including a straightening assembly. The straightening assembly includes a worktable, slides, mounting grooves, a rotating shaft, rotating rollers, a stop rod, pin holes, a pin rod, a vertical plate, a hydraulic push rod, a mounting plate, a connecting block, and a clamping bracket. Two slides are symmetrically slidably connected to the left side of the upper surface of the worktable. The upper surface of each slide has a mounting groove, and the inner wall of the mounting groove is rotatably connected to the rotating shaft via bearings. In operation, the steel pipe to be straightened is placed on the two rotating rollers. The rotation of the rotating shaft drives the rotating rollers to rotate. Moving the steel pipe reduces friction, facilitating the movement of the pipe so that the bent or protruding part aligns with the hydraulic push rod. One end of the piston rod of the hydraulic push rod extends, driving the clamping bracket to push the bent or protruding part of the steel pipe. The stop rod clamps both sides of the steel pipe. Under the pushing force of the clamping bracket, the steel pipe deforms, eliminating the bend.
[0004] However, the current straightening mechanism has the following problems: the existing device is difficult to adjust the height of the table, which makes it very difficult to place the steel pipe. Therefore, we propose a steel pipe straightening device for steel pipe processing. Utility Model Content
[0005] The purpose of this invention is to provide a steel pipe straightening device for steel pipe processing, which can solve the problem of difficulty in adjusting the height of the table in related technologies.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A steel pipe straightening device for steel pipe processing includes a straightening mechanism. The straightening mechanism includes a base plate, a top plate above the base plate, and a cylinder fixedly connected to the top of the top plate. The cylinder is slidably connected to a push rod via an internal piston. A push plate is fixedly connected to the end of the push rod away from the cylinder. A lifting mechanism is externally provided to the straightening mechanism. The lifting mechanism includes a motor, which is fixedly connected to the top of the base plate. A threaded rod is fixedly connected to the output shaft of the motor. A threaded sleeve is threadedly connected to the end of the threaded rod away from the motor. One side of the threaded sleeve is fixedly connected to... A connecting rod has a slider passing through its end away from the threaded sleeve, and a slide rail is provided on the top of the base plate; the connecting rod has a connecting plate A passing through its end near the slider and is rotatably connected to the connecting plate A; a fixing block is fixedly connected to the top of the base plate; a connecting plate B is provided on one side of the fixing block; a lead screw passes through one end of the connecting plate B and is rotatably connected to the connecting plate B; a long rod passes through one side of the connecting plate A and is rotatably connected to the connecting plate A; there are four slide rails, arranged in pairs and symmetrically along the vertical central axis of the base plate; the slider is slidably connected to the inner wall of the slide rail.
[0008] The straightening mechanism is externally equipped with a protective mechanism, which includes a rotating rod. The circumferential surface of the rotating rod is rotatably connected to one side of the push plate. A protective plate is fixedly connected to the circumferential surface of the rotating rod. A gear is fixedly connected to one end of the rotating rod. A spring telescopic rod is fixedly connected to one side of the push plate. A locking block is fixedly connected to the end of the spring telescopic rod away from the push plate. The locking block meshes with the gear and is located on the gear's displacement trajectory. The protective plate is located above the push plate. There are two push plates, which are symmetrical to each other along the vertical central axis of the top plate. There are two cylinders, which are symmetrical to each other along the vertical central axis of the top plate. There are two connecting plates A, which are symmetrical to each other along the vertical central axis of the bottom plate. The connecting plates A are located between the top plate and the bottom plate.
[0009] The technical effects achieved by this utility model are as follows:
[0010] This utility model, through the setting of a lifting mechanism, enables components such as a motor, threaded rod, and threaded sleeve to cooperate with each other. The motor drives the threaded rod to rotate, thereby causing the threaded rod to move the threaded sleeve, which in turn causes the threaded sleeve to rotate the connecting plate A and the connecting plate B, thus achieving the effect of adjusting the height of the table and facilitating the handling of steel pipes.
[0011] This utility model, through the setting of a protective mechanism, enables the rotating rod and protective plate to cooperate with each other, so that rotating the rotating rod drives the protective plate to rotate, thereby preventing the steel pipe from breaking during the straightening process and thus avoiding accidental injury to workers. Attached Figure Description
[0012] Figure 1 This is a three-dimensional appearance schematic diagram of the present invention;
[0013] Figure 2 This is a side view of the three-dimensional structure of the base plate of this utility model;
[0014] Figure 3 This is a side view three-dimensional structural diagram of the threaded sleeve of this utility model;
[0015] Figure 4 This is a three-dimensional structural diagram of the base plate of this utility model, viewed from below.
[0016] Figure 5 This utility model Figure 3 A 3D magnified view of A in the middle.
[0017] The attached diagram lists the components represented by each number as follows:
[0018] 1. Straightening Mechanism; 101. Base Plate; 102. Top Plate; 103. Cylinder; 104. Push Rod; 105. Push Plate; 2. Lifting Mechanism; 201. Motor; 202. Threaded Rod; 203. Threaded Sleeve; 204. Connecting Rod; 205. Slide Rail; 206. Slider; 207. Connecting Plate A; 208. Connecting Plate B; 209. Fixing Block; 210. Lead Screw; 211. Long Rod; 3. Protective Mechanism; 301. Rotating Rod; 302. Protective Plate; 303. Gear; 304. Spring Telescopic Rod; 305. Locking Block. Detailed Implementation
[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0020] like Figure 1-3As shown, a steel pipe straightening device for steel pipe processing includes a straightening mechanism 1. The straightening mechanism 1 includes a base plate 101, a top plate 102 above the base plate 101, a cylinder 103 fixedly connected to the top of the top plate 102, a push rod 104 slidably connected to the cylinder 103 via an internal piston, and a push plate 105 fixedly connected to the end of the push rod 104 away from the cylinder 103. A lifting mechanism 2 is provided outside the straightening mechanism 1. The lifting mechanism 2 includes a motor 201, which is fixedly connected to the top of the base plate 101. A threaded rod 202 is fixedly connected to the output shaft of the motor 201. A threaded sleeve 203 is threadedly connected to the end of the threaded rod 202 away from the motor 201, and a connecting rod 2 is fixedly connected to one side of the threaded sleeve 203. 04. A slider 206 passes through the end away from the threaded sleeve 203, and a slide rail 205 is provided on the top of the base plate 101; a connecting rod 204 passes through a connecting plate A207 at the end near the slider 206 and is rotatably connected to the connecting plate A207; a fixing block 209 is fixedly connected to the top of the base plate 101; a connecting plate B208 is provided on one side of the fixing block 209; a lead screw 210 passes through one end of the connecting plate B208 and is rotatably connected to the connecting plate B208; a long rod 211 passes through one side of the connecting plate A207 and is rotatably connected to the connecting plate A207; there are four slide rails 205, arranged in pairs, and symmetrically arranged along the vertical central axis of the base plate 101; the slider 206 is slidably connected to the inner wall of the slide rail 205.
[0021] According to the above structure, this application uses an external power source to drive the motor 201 to operate, thereby driving the threaded rod 202 to rotate. This causes the threaded rod 202 to drive the threaded sleeve 203 on it to move horizontally, which in turn causes the threaded sleeve 203 to drive the connecting rod 204 to move horizontally. This causes the connecting rod 204 to push the slider 206 to slide within the slide rail 205, which in turn causes the slider 206 to drive the connecting plate A207 to move. At this time, the connecting plate A207 will rotate via the long rod 211, thereby cooperating with the connecting plate B208 to achieve the effect of adjusting the height of the table, which is convenient for transporting steel pipes.
[0022] like Figure 4-5As shown, a protective mechanism 3 is provided outside the straightening mechanism 1. The protective mechanism 3 includes a rotating rod 301, the circumferential surface of which is rotatably connected to one side of the push plate 105. A protective plate 302 is fixedly connected to the circumferential surface of the rotating rod 301. A gear 303 is fixedly connected to one end of the rotating rod 301. A spring telescopic rod 304 is fixedly connected to one side of the push plate 105. A locking block 305 is fixedly connected to the end of the spring telescopic rod 304 away from the push plate 105. The locking block 305 and the gear 302 are connected to the protective mechanism 303. 03 are meshed with each other, the locking block 305 is located on the displacement trajectory of the gear 303, and the protective plate 302 is located above the push plate 105; there are two push plates 105, which are symmetrical to each other along the vertical central axis of the top plate 102; there are two cylinders 103, which are symmetrical to each other along the vertical central axis of the top plate 102; there are two connecting plates A207, which are symmetrical to each other along the vertical central axis of the bottom plate 101, and the connecting plate A207 is located between the top plate 102 and the bottom plate 101.
[0023] Based on the above structure, this application pulls the locking block 305 away from the gear 303, thereby pushing the anti-slip plate 302, causing the protective plate 302 to rotate via the rotating rod 301. Then, by releasing the locking block 305, the locking block 305 engages with the gear 303, thereby limiting the gear 303. This achieves the goal of preventing the steel pipe from breaking during the straightening process, thus avoiding accidental injury to workers.
[0024] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A steel pipe straightening device for steel pipe processing, characterized in that: The system includes a straightening mechanism (1), which includes a base plate (101) and a top plate (102) above the base plate (101). A cylinder (103) is fixedly connected to the top of the top plate (102). A push rod (104) is slidably connected to the cylinder (103) through an internal piston. A push plate (105) is fixedly connected to the end of the push rod (104) away from the cylinder (103). The straightening mechanism (1) is provided with a lifting mechanism (2) outside. The lifting mechanism (2) includes a motor (201). The motor (201) is fixedly connected to the top of the base plate (101). The output shaft of the motor (201) is fixedly connected to a threaded rod (202). The end of the threaded rod (202) away from the motor (201) is threadedly connected to a threaded sleeve (203). A connecting rod (204) is fixedly connected to one side of the threaded sleeve (203). A slider (206) passes through the end of the threaded sleeve (203). A slide rail (205) is provided on the top of the base plate (101).
2. The steel pipe straightening device for steel pipe processing according to claim 1, characterized in that: The connecting rod (204) has a connecting plate A (207) passing through one end near the slider (206). A fixing block (209) is fixedly connected to the top of the base plate (101). A connecting plate B (208) is provided on one side of the fixing block (209). A lead screw (210) passes through one end of the connecting plate B (208) and is rotatably connected to the connecting plate B (208). A long rod (211) passes through one side of the connecting plate A (207), and both the connecting rod (204) and the long rod (211) are rotatably connected to the connecting plate A (207).
3. The steel pipe straightening device for steel pipe processing according to claim 2, characterized in that: The number of slide rails (205) is four, in pairs, and they are symmetrical to each other along the vertical central axis of the base plate (101). The slider (206) is slidably connected to the inner wall of the slide rail (205).
4. The steel pipe straightening device for steel pipe processing according to claim 3, characterized in that: The straightening mechanism (1) is provided with a protective mechanism (3) on the outside. The protective mechanism (3) includes a rotating rod (301). The circumferential surface of the rotating rod (301) is rotatably connected to one side of the push plate (105). A protective plate (302) is fixedly connected to the circumferential surface of the rotating rod (301). A gear (303) is fixedly connected to one end of the rotating rod (301). A spring telescopic rod (304) is fixedly connected to one side of the push plate (105). A locking block (305) is fixedly connected to the end of the spring telescopic rod (304) away from the push plate (105).
5. The steel pipe straightening device for steel pipe processing according to claim 4, characterized in that: The locking block (305) meshes with the gear (303), the locking block (305) is located on the displacement trajectory of the gear (303), and the protective plate (302) is located above the push plate (105).
6. The steel pipe straightening device for steel pipe processing according to claim 1, characterized in that: There are two push plates (105) and two cylinders (103), and the push plates (105) and cylinders (103) are symmetrical to each other along the vertical central axis of the top plate (102).
7. The steel pipe straightening device for steel pipe processing according to claim 2, characterized in that: There are two connecting plates A (207), which are symmetrical to each other along the vertical central axis of the bottom plate (101). The connecting plates A (207) are located between the top plate (102) and the bottom plate (101).
Citation Information
Patent Citations
Steel pipe straightening device for steel pipe machining
CN220837303U