Lean tube fixing assembly

CN224770602UActive Publication Date: 2026-09-18JIANGSU SONGHUI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522291182.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-09-18
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

[0004]然而,这种单纯依靠摩擦力进行锁紧的连接方式,在实际应用,尤其是在一些苛刻的工况下,暴露出明显的技术缺陷

Benefits of technology

1、该精益管固定组件,通过设置的稳定组件,螺栓旋入时,限位块沿卡槽斜面顺利滑入,实现顺畅旋紧;反向转动时,斜面转为直面干涉,形成机械自锁,有效防松。拆除时,按压压杆可解除限位,并驱动连接块滑越卡板,随后在弹簧作用下,连接块与卡板的平面侧相抵,锁定机构于开放状态,此时即可顺利卸下螺栓。

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Abstract

The utility model relates to lean pipe fixing assembly technical field, and disclose a kind of lean pipe fixing assembly, including pipe body, connecting piece, the pipe body is installed in the inside of connecting piece, the outer surface of connecting piece is equipped with thread groove, the inside thread connection of thread groove has bolt, the inside of connecting piece, bolt and surface is equipped with stabilizing assembly and separation assembly, the stabilizing assembly is used to avoid connection loosening, the separation assembly is used to facilitate to separate work, this lean pipe fixing assembly, by the stabilizing assembly of setting, when bolt is screwed in, limit block is smoothly slid into along the groove bevel, realize smooth screwing;When reverse rotation, bevel becomes straight face interference, form mechanical self-locking, effectively prevent loosening.Dismantling, press the rod can remove limit, and drive connecting block to slide over clamping plate, subsequently under the action of spring, the plane side of connecting block and clamping plate is resisted, locking mechanism is in open state, at this moment, bolt can be smoothly unloaded.
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Description

Technical Field

[0001] This utility model relates to the technical field of lean pipe fixing components, specifically a lean pipe fixing component. Background Technology

[0002] Aluminum alloy lean pipes, as a modular, lightweight, and durable structural material, are widely used in modern industry and daily life due to their excellent characteristics of being easy to cut, assemble, and adjust. They are commonly used to construct various frame structures, such as production line workbenches, material handling carts, warehouse shelves, display racks, protective fences, and temporary sheds. These structures are combined using standardized lean pipe fittings and specialized connectors, enabling rapid response to changing needs in production layout and space utilization.

[0003] Currently, the connection between aluminum alloy lean pipes typically relies on specialized connectors, such as external connecting blocks, corner fittings, or tee fittings. Bolts or other fasteners are screwed in radially, with the ends or sides of the bolts directly or indirectly pressing against the surface of the lean pipe. The positive pressure generated by tightening the bolts creates static friction between the lean pipe and the connector's contact surface, thus achieving fixation and locking.

[0004] However, this connection method, which relies solely on friction for locking, reveals significant technical flaws in practical applications, especially under harsh working conditions. First, in environments subjected to long-term vibration loads, such as near automated equipment, on assembly lines, or on motor-driven mobile carts, continuous vibration causes the bolts to gradually loosen due to stress relaxation. This reduces the original preload, weakens friction, and ultimately leads to the connection point coming loose, thereby reducing the stability and safety of the entire structure. Utility Model Content

[0005] The purpose of this invention is to provide a lean pipe fixing component to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lean pipe fixing assembly, including a pipe body and a connector, wherein the pipe body is installed on the inner side of the connector, the outer surface of the connector is provided with a threaded groove, and a bolt is threadedly connected to the inner side of the threaded groove. The inner side and the surface of the connector and the bolt are provided with a stabilizing component and a separating component. The stabilizing component is used to prevent the connection from loosening, and the separating component is used to facilitate disengagement from the work. The stabilizing component includes: Limiting block, the limiting block is used to cooperate with the slot to limit the bolt in one direction; The fixed plate is used to drive the synchronous movement of each mechanism. Connecting block: The connecting block is used to cooperate with the clamping plate to achieve limit position and facilitate the removal of bolts.

[0007] Preferably, the limiting block is fixed to the outer surface of the bolt, an annular groove is formed on the inner side of the threaded groove, a ring is slidably connected to the inner wall of the annular groove, a retaining groove is formed on the side of the ring near the limiting block, a spring is fixed to the outer surface of the ring, and the end of the spring away from the ring is fixed to the inner wall of the annular groove. When the bolt is screwed in, the limiting block on its surface cooperates with the inclined surface of the retaining groove of the ring, and it can be tightened smoothly; when it loosens in the opposite direction, the inclined surface turns into a straight surface interference, forming a mechanical lock, effectively preventing loosening.

[0008] Preferably, the separation component includes a movable plate, which is slidably connected to the inner wall of the annular groove. A magnet is fixed to the inner wall of the annular groove, and the magnet is magnetically connected to the movable plate. The side of the movable plate closest to the magnet is set as an inclined surface. When reset is required, the pressure rod is pressed again, and after the connecting block passes the movable plate, it is released. The spring will drive the entire component to reset and push the movable plate to fit against the card plate, thereby releasing the limit. At the same time, the magnet attracts the movable plate to reset.

[0009] Preferably, a fixing rod is fixed to the outer surface of the ring, and a groove is formed on the outer surface of the fixing rod. A connecting block is slidably connected to the inner wall of the groove. A second spring is fixed to the outer surface of the connecting block. The end of the second spring away from the connecting block is fixed to the inner wall of the groove. A retaining plate is fixed to the inner wall of the annular groove. The fixing rod and the connecting block move, causing the inclined surface of the connecting block to slide into the groove along the retaining plate, compressing the second spring. After passing the retaining plate, the second spring rebounds, pushing the plane of the connecting block to abut against the plane of the retaining plate, thereby locking the position and allowing the bolt to be removed.

[0010] Preferably, the cross-sections of the limiting block and the slot are both set as right-angled triangles, and they face opposite directions. The end of the connecting block away from the second spring is set as an inclined surface, and the side of the card plate near the connecting block is set as an inclined surface. When the plane side of the limiting block and the slot abut against each other, the bolt can be unidirectionally limited. When the inclined surface of the connecting block is abutted, the connecting block can move into the slide groove without affecting the normal pressing of the pressure rod. When the card plate and the moving plate are in contact with each other, it is easy to release the limit.

[0011] Preferably, a fixing plate is fixed to the outer surface of the ring, one end of the fixing plate passes through the connector, and the fixing plate and the connector are slidably connected. A pressure rod is fixed to the outer surface of the fixing plate, the end of the pressure rod away from the fixing plate passes through the connector, and the pressure rod and the connector are slidably connected. Pressing the pressure rod can drive the fixing plate and the ring to move synchronously, so that the slot is disengaged from the limiting block, making it convenient to remove the bolt.

[0012] Compared with the prior art, the present invention provides a lean pipe fixing assembly, which has the following beneficial effects: 1. This lean pipe fixing assembly, through its stabilizing component, allows the limiting block to slide smoothly into the inclined surface of the slot when the bolt is screwed in, achieving smooth tightening. When rotating in the opposite direction, the inclined surface becomes a straight surface, forming a mechanical self-locking mechanism to effectively prevent loosening. For removal, pressing the pressure rod releases the limiting block and drives the connecting block to slide over the clamping plate. Subsequently, under the action of the spring, the connecting block abuts against the flat side of the clamping plate, locking the mechanism in the open state, at which point the bolt can be easily removed.

[0013] 2. This lean pipe fixing assembly, through its designed separation component, allows for automatic return of each mechanism to its original position when resetting is required. Pressing the lever again causes the connecting block to pass the moving plate and release, allowing each component to automatically return to its original position under the action of the spring. During this process, the connecting block pushes the moving plate against the locking plate, thereby releasing all limits and restoring the mechanism to its initial state, facilitating subsequent normal use. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a cross-sectional view of the connector of this utility model; Figure 3 This is a front view of the exploded structure of some of the stabilizing components and separation components of this utility model; Figure 4 This is a cross-sectional view of some of the stabilizing components of this utility model.

[0015] In the diagram: 1. Pipe body; 2. Connector; 3. Threaded groove; 4. Bolt; 5. Stabilizing component; 50. Limiting block; 51. Annular groove; 52. Circular ring; 53. Spring 1; 54. Slot; 55. Fixing plate; 56. Pressure rod; 57. Fixing rod; 58. Slide groove; 59. Connecting block; 500. Spring 2; 501. Clamping plate; 6. Separation component; 60. Moving plate; 61. Magnet. Detailed Implementation

[0016] like Figures 1-4 As shown, this utility model provides a technical solution: a lean pipe fixing assembly, including a pipe body 1 and a connector 2. The pipe body 1 is installed on the inner side of the connector 2. A threaded groove 3 is opened on the outer surface of the connector 2. A bolt 4 is threadedly connected to the inner side of the threaded groove 3. A stabilizing component 5 and a separating component 6 are provided on the inner side and surface of the connector 2 and the bolt 4. The stabilizing component 5 is used to prevent the connection from loosening, and the separating component 6 is used to facilitate disengagement. The stabilizing component 5 includes: a limiting block 50, an annular groove 51, a ring 52, a first spring 53, a slot 54, a fixing plate 55, a pressure rod 56, a fixing rod 57, a sliding groove 58, a connecting block 59, a second spring 500, and a slot plate 501.

[0017] The limiting block 50 is fixed to the outer surface of the bolt 4. An annular groove 51 is formed on the inner side of the threaded groove 3. A ring 52 is slidably connected to the inner wall of the annular groove 51. A slot 54 is formed on the side of the ring 52 near the limiting block 50. A spring 53 is fixed to the outer surface of the ring 52. The end of the spring 53 away from the ring 52 is fixed to the inner wall of the annular groove 51. A fixing rod 57 is fixed to the outer surface of the ring 52. A sliding groove 58 is formed on the outer surface of the fixing rod 57. A connecting block 59 is slidably connected to the inner wall of the sliding groove 58. A second spring 500 is fixed to the outer surface of the connecting block 59. The end of the second spring 500 away from the connecting block 59 is fixed to the inner wall of the sliding groove 58. A ring 51 is fixed to the inner wall of the annular groove 51. The cross-sections of the clamping plate 501, the limiting block 50, and the slot 54 are all set as right-angled triangles, and they face opposite directions. The end of the connecting block 59 away from the spring 500 is set as an inclined surface, and the side of the clamping plate 501 near the connecting block 59 is also set as an inclined surface. A fixing plate 55 is fixed to the outer surface of the ring 52. One end of the fixing plate 55 passes through the connector 2, and the fixing plate 55 is slidably connected to the connector 2. A pressure rod 56 is fixed to the outer surface of the fixing plate 55. The end of the pressure rod 56 away from the fixing plate 55 passes through the connector 2, and the pressure rod 56 is slidably connected to the connector 2. When the bolt 4 is screwed into the threaded groove 3 of the connector 2, the limiting block 50 on the surface of the bolt 4 interacts with the slot 54 on the ring 52. Both of their cross-sections are right-angled triangles with opposite directions, allowing the bolt 4 to pass smoothly when tightened, and forming mechanical interference when loosened in the opposite direction, achieving one-way locking and preventing loosening due to vibration. During disassembly, press down on the pressure rod 56 to move the fixing plate 55 and the ring 52 away from the bolt 4, releasing the limit. At the same time, the ring 52 moves the fixing rod 57 and the connecting block 59. When the inclined surface of the connecting block 59 contacts the inclined surface of the clamping plate 501, the connecting block 59 slides into the slide groove 58, and the second spring 500 is compressed; after passing the clamping plate 501, the second spring 500 is released, causing the flat side of the connecting block 59 to abut against the flat side of the clamping plate 501, thereby locking the position of the fixing rod 57 and the ring 52. At this time, the bolt 4 can be removed normally.

[0018] The separation assembly 6 includes a movable plate 60, which is slidably connected to the inner wall of an annular groove 51. A magnet 61 is fixed to the inner wall of the annular groove 51, and the magnet 61 is magnetically connected to the movable plate 60. The side of the movable plate 60 closest to the magnet 61 is set as an inclined surface. When resetting is required, the pressure rod 56 is pressed again, and the connecting block 59 contacts the outer surface of the movable plate 60. After the connecting block 59 passes the movable plate 60, the pressure rod 56 is released, the spring 53 is released, and the ring 52, the fixing rod 57, and the connecting block 59 are reset. At the same time, the connecting block 59 pushes the movable plate 60 towards the clamping plate 501. When the movable plate 60 is in contact with the clamping plate 501, the limiting of the connecting block 59, the fixing rod 57, and the ring 52 is released, and each mechanism returns to its normal position for subsequent use.

[0019] When bolt 4 is screwed into the threaded groove 3 of connector 2, the limiting block 50 fixed on the outer surface of bolt 4 interacts with the retaining groove 54 on ring 52. Since the cross-sections of limiting block 50 and retaining groove 54 are both right-angled triangles and face opposite directions, bolt 4 can pass smoothly during tightening, but will be subject to mechanical interference when loosening in the reverse direction, forming a one-way locking effect, effectively preventing the connection from loosening due to vibration. The ring 52 maintains contact pressure with the limiting block 50 via spring 53, enhancing the reliability of the locking mechanism. When removal is required, pressing the pressure rod 56 causes the fixing plate 55 to move the ring 52 away from the bolt 4, thus releasing the one-way limit. Simultaneously, the ring 52 moves the fixing rod 57 and the connecting block 59. When the inclined surface of the connecting block 59 contacts the inclined surface of the clamping plate 501, the connecting block 59 moves into the slide groove 58, compressing the spring 500. When the connecting block 59 passes the clamping plate 501, the spring 500 is released, and the flat side of the connecting block 59 contacts the flat side of the clamping plate 501. The fixed rod 57 and the ring 52 can be limited, and the bolt 4 can be removed normally. When the mechanism needs to be reset, press the pressure rod 56 again. At this time, the connecting block 59 contacts the outer surface of the moving plate 60. When the connecting block 59 passes the moving plate 60, the pressure rod 56 is released, the spring 53 is released, and the ring 52, the fixed rod 57, and the connecting block 59 are reset. At this time, the connecting block 59 drives the moving plate 60 to move closer to the clamping plate 501. When the moving plate 60 and the clamping plate 501 are in contact with each other, the limitation on the connecting block 59, the fixed rod 57, and the ring 52 can be released, and the mechanism can be reset normally for convenient continued use.

[0020] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A lean tube fixing assembly comprising a tube body (1), a connecting member (2), characterized in that: The tube body (1) is installed on the inside of the connector (2). The outer surface of the connector (2) is provided with a threaded groove (3). The inner side of the threaded groove (3) is threaded with a bolt (4). The inner side and surface of the connector (2) and the bolt (4) are provided with a stabilizing component (5) and a separating component (6). The stabilizing component (5) is used to prevent the connection from becoming loose, and the separating component (6) is used to facilitate disengagement from the work. The stabilizing component (5) includes: Limiting block (50) is used to cooperate with slot (54) to limit the bolt (4) in one direction; Fixed plate (55) is used to drive the synchronous movement of each mechanism; Connecting block (59) is used to limit the position of the card plate (501).

2. A lean tube fixation assembly according to claim 1, characterized in that: The limiting block (50) is fixed on the outer surface of the bolt (4). An annular groove (51) is provided on the inner side of the threaded groove (3). A ring (52) is slidably connected to the inner wall of the annular groove (51). A slot (54) is provided on the side of the ring (52) near the limiting block (50). A spring (53) is fixed on the outer surface of the ring (52). The end of the spring (53) away from the ring (52) is fixed on the inner wall of the annular groove (51).

3. A lean tube fixation assembly according to claim 1, wherein: The separation component (6) includes a movable plate (60) which is slidably connected to the inner wall of an annular groove (51). A magnet (61) is fixed to the inner wall of the annular groove (51). The magnet (61) is magnetically connected to the movable plate (60). The side of the movable plate (60) near the magnet (61) is set as an inclined surface.

4. A lean tube fixation assembly according to claim 2, wherein: A fixing rod (57) is fixed on the outer surface of the ring (52). A groove (58) is provided on the outer surface of the fixing rod (57). A connecting block (59) is slidably connected to the inner wall of the groove (58). A second spring (500) is fixed on the outer surface of the connecting block (59). One end of the second spring (500) away from the connecting block (59) is fixed on the inner wall of the groove (58). A clamping plate (501) is fixed on the inner wall of the annular groove (51).

5. A lean tube fixation assembly according to claim 4, wherein: The cross-sections of the limiting block (50) and the slot (54) are both set as right-angled triangles, and they face opposite directions. The end of the connecting block (59) away from the second spring (500) is set as an inclined surface, and the side of the card plate (501) close to the connecting block (59) is set as an inclined surface.

6. A lean tube fixation assembly according to claim 2, wherein: A fixing plate (55) is fixed on the outer surface of the ring (52). One end of the fixing plate (55) passes through the connector (2), and the fixing plate (55) and the connector (2) are slidably connected. A pressure rod (56) is fixed on the outer surface of the fixing plate (55). One end of the pressure rod (56) away from the fixing plate (55) passes through the connector (2), and the pressure rod (56) and the connector (2) are slidably connected.