Trestle bridge trapezoidal convex stainless steel pole four times bearing box device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG MINGTAI MEDICAL EQUIP GRP CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-21
Smart Images

Figure CN224523507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical pendant technology, specifically a pendant bridge device with a trapezoidal outward-protruding stainless steel rod and a four-fold load-bearing box. Background Technology
[0002] Medical pendant towers are essential gas supply medical equipment in modern hospital operating rooms. They are mainly used for the terminal transfer of medical gases such as oxygen, suction, compressed air, and nitrogen in the operating room. The tower head and supporting platform can only be suspended on the circumference of the cantilever radius, so single cantilever towers are only chosen for operating rooms with smaller areas. The rotation angle is ≤340°, and gas pipelines, cables, and network communication lines all pass through here.
[0003] A relevant reference is Chinese utility model patent CN218165545U, which discloses a medical pendant system including a housing, a rotating shaft, a boom, and a display mounting bracket. The housing and one end of the rotating shaft are rotatably connected, and the other end of the rotating shaft is connected to the boom. The display mounting bracket is connected to the surface of the housing. The display mounting bracket includes a frame and several display mounting seats, with the mounting seats connected to the frame. This utility model can fix multiple displays using several display mounting seats, and can also fix larger displays using a combination of mounting seats. After fixing, because the housing and rotating shaft are rotatably connected, and the frame and housing are connected, the viewing angle of the display can be adjusted.
[0004] The rotation damping of the aforementioned medical pendant shaft is fixed, requiring a large force to move the tower head when adjusting its position, which is very inconvenient. Furthermore, in order to facilitate the routing of internal pipe and circuit structures, the cantilever and tower head of the pendant are hollow structures, resulting in limited load-bearing capacity of the tower head of existing medical pendants. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a four-fold load-bearing box device with trapezoidal protruding stainless steel rods for gantry cranes and bridges, which solves the problems of limited load-bearing capacity and fixed rotation damping.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: The trapezoidal protruding stainless steel rod four-fold load-bearing box device for gantry cranes and bridges includes a box body, end caps are fixedly installed at both ends of the box body, a lifting pipe is fixedly installed above the end caps, reinforcing ribs are provided on the inner wall of the box body, and a directional adjustment mechanism is fixedly installed above the lifting pipe.
[0007] The steering mechanism includes a lower cantilever fixedly installed at the top of the suspension pipe, an upper cantilever movably installed above the lower cantilever, connecting pipes movably installed above the lower cantilever and on the upper and lower sides of the upper cantilever, a coil frame fixedly installed on the outer side of the connecting pipe, a copper wire coil wound on the outer side of the coil frame, a magnetic ring fixedly installed inside the upper cantilever, a fixing plate fixedly installed inside the upper cantilever, an electromagnet fixedly installed below the fixing plate, a limit plate fixedly installed below the fixing plate, nylon sleeves fixedly installed at both ends of the limit plate, a transmission column fixedly installed inside the nylon sleeves, and a silicone plate fixedly installed at the bottom end of the transmission column.
[0008] Preferably, the front side of the box body is provided with a symmetrical sliding groove structure, a limit rod is fixedly installed inside the sliding groove structure on the front side of the box body, and a support rod is movably installed on the outside of the limit rod.
[0009] Preferably, a storage platform is fixedly installed above the support rod, a connecting plate is fixedly installed below the limiting rod, a drawer is fixedly installed below the connecting plate, the box body has a trapezoidal cross-section, and the reinforcing ribs are located at both ends of the four internal facades of the box body.
[0010] Preferably, the lower cantilever and the upper cantilever, and the upper cantilever and the mounting surface are connected by a connecting pipe, and the top end face of the connecting pipe is provided with a toothed structure.
[0011] Preferably, the upper cantilever at the bottom end of the connecting pipe forms a rotatable connection, the coil frame is located at the center of the magnetic ring and its outer edge does not contact the magnetic ring, the electromagnet is fitted and installed on the left and right sides of the fixed plate, and the limiting plate is fixedly connected to the upper cantilever through the fixed plate.
[0012] Preferably, the transmission column and the nylon sleeve form a sliding connection, and the silicone plate is installed below the nylon sleeves on both sides of the limiting plate through the transmission column, and the silicone plate is located above the toothed structure of the connecting tube.
[0013] Beneficial effects
[0014] This utility model provides a four-fold load-bearing capacity box device with trapezoidal protruding stainless steel rods for tower cranes and bridges. Compared with the prior art, it has the following advantages:
[0015] (1) The trapezoidal convex stainless steel rod of the gantry crane with a four-fold load-bearing box device, through the setting of copper wire coil, when the lower cantilever drives the connecting pipe to rotate, the copper wire coil wound on the outside of the coil frame will generate an angle change with the outer magnetic ring, so that the copper wire coil generates current. By monitoring whether there is current inside the copper wire coil, the direction of the magnetic pole of the electromagnet is adjusted. When there is no current inside the copper wire coil, the direction of the magnetic pole of the electromagnet is opposite to the direction of the magnetic pole of the permanent magnet at the top of the transmission column. When there is current inside the copper wire coil, the direction of the magnetic pole of the electromagnet is the same as the direction of the magnetic pole of the permanent magnet at the top of the transmission column. Thus, the rotational damping of the connecting pipe is reduced when the connecting pipe rotates, and at the moment when the connecting pipe stops rotating, the silicone plate contacts the toothed structure at the top of the connecting pipe, restricting the position of the connecting pipe, so as to adjust the position of the box.
[0016] (2) The trapezoidal outward-protruding stainless steel rod of the gantry crane has a load-bearing box device with four times the load capacity. The reinforcing ribs are located at both ends of the four vertical surfaces of the inner wall of the box. The reinforcing ribs can increase the cross-sectional area of the box, thereby increasing the moment of inertia of the box section and enhancing the box's resistance to bending and torsion, so as to avoid deformation of the box after bearing the load. In addition, the cross-sections of the lower cantilever and the upper cantilever are similar to the cross-section of the box, which can increase the bending resistance of the lower cantilever and the upper cantilever, thereby improving the load-bearing capacity of the lower cantilever and the upper cantilever, so as to improve the overall load-bearing capacity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the connection structure between the box body and the storage platform of this utility model;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the box body of this utility model;
[0020] Figure 4 This is a schematic diagram of the connection structure between the lower cantilever and the lifting pipe of this utility model;
[0021] Figure 5 This is a schematic diagram of the transmission column installation structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the upper cantilever of this utility model;
[0023] In the diagram: 1. Box body; 11. Limiting rod; 12. Support rod; 13. Storage platform; 14. Connecting plate; 15. Drawer; 16. End cap; 17. Hanging pipe; 18. Reinforcing rib; 2. Orientation mechanism; 21. Lower cantilever; 22. Upper cantilever; 23. Connecting pipe; 24. Coil frame; 25. Copper wire coil; 26. Magnetic ring; 27. Fixing plate; 28. Electromagnet; 29. Limiting plate; 210. Nylon sleeve; 211. Transmission column; 212. Silicone plate. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-6 This utility model provides a technical solution: a trapezoidal convex stainless steel rod four-fold load-bearing box device for a gantry crane, including a box 1. The box 1 has a trapezoidal cross-section. The front side of the box 1 is provided with a left-right symmetrical sliding groove structure. A limit rod 11 is fixedly installed inside the sliding groove structure on the front side of the box 1. A support rod 12 is movably installed on the outside of the limit rod 11. A storage platform 13 is fixedly installed above the support rod 12. A connecting plate 14 is fixedly installed below the limit rod 11. A drawer 15 is fixedly installed below the connecting plate 14. End caps 16 are fixedly installed at both ends of the box 1. A hanging pipe 17 is fixedly installed above the end caps 16. Reinforcing ribs 18 are provided on the inner wall of the box 1. The reinforcing ribs 18 are located at both ends of the four internal facades of the box 1.
[0026] Specifically, the cabinet 1 can protect the internal circuit and gas pipeline. A power socket, grounding terminal and gas terminal are provided on one side of the cabinet 1. The support rod 12 can support the storage platform 13. The relative position between the support rod 12 and the limiting rod 11 is fixed by bolts. The connecting plate 14 can facilitate the connection between the drawer 15 and the limiting rod 11. The position of the cabinet 1 can be adjusted by the handles on both sides of the connecting plate 14. The end cap 16 can close the upper and lower ends of the cabinet 1. The reinforcing rib 18 can increase the strength of the cabinet 1.
[0027] A directional adjustment mechanism 2 is fixedly installed above the suspension pipe 17. The directional adjustment mechanism 2 includes a lower cantilever 21 fixedly installed at the top of the suspension pipe 17, an upper cantilever 22 movably installed above the lower cantilever 21, connecting pipes 23 movably installed above the lower cantilever 21 and on the upper and lower sides of the upper cantilever 22, a coil frame 24 fixedly installed on the outside of the connecting pipe 23, a copper wire coil 25 wound on the outside of the coil frame 24, a magnetic ring 26 fixedly installed inside the upper cantilever 22, a fixing plate 27 fixedly installed inside the upper cantilever 22, an electromagnet 28 fixedly installed below the fixing plate 27, a limit plate 29 fixedly installed below the fixing plate 27, nylon sleeves 210 fixedly installed at both ends of the limit plate 29, and a transmission column 211 fixedly installed inside the nylon sleeve 210. A silicone plate 212 is fixedly installed at the bottom of the moving column 211. The lower cantilever 21 and the upper cantilever 22 are connected by a connecting pipe 23, and the upper cantilever 22 is connected to the mounting surface by a connecting pipe 23. The top end face of the connecting pipe 23 is provided with a toothed structure. The bottom end of the connecting pipe 23 and the upper cantilever 22 form a rotatable connection. The coil frame 24 is located at the center of the magnetic ring 26, and its outer edge does not contact the magnetic ring 26. The electromagnet 28 is fitted and installed on the left and right sides of the fixed plate 27. The limiting plate 29 is fixedly connected to the upper cantilever 22 through the fixed plate 27. The transmission column 211 and the nylon sleeve 210 form a sliding connection. The silicone plate 212 is installed below the nylon sleeve 210 on the left and right sides of the limiting plate 29 through the transmission column 211, and the silicone plate 212 is located above the toothed structure of the connecting pipe 23.
[0028] Specifically, the upper cantilever 21 and lower cantilever 22 have a rectangular pipe structure at their center, with symmetrical webs on both sides of the central pipe structure, connecting to the outer walls on both sides to enhance structural strength and rigidity. The front and rear ends of the upper cantilever 21 and lower cantilever 22 are sealed with end caps with snap-fits. The lower cantilever 21 increases the movement range of the housing 1. The lower cantilever 21 is connected to the mounting surface via connecting pipes 23 on both sides of the upper cantilever 22. Since the electromagnet 28 below the fixed plate 27 remains open when not receiving a control signal and is in a state opposite to the magnetic pole of the permanent magnet above the transmission column 211, the silicone plate 212 below the transmission column 211 always remains in contact with the toothed structure on the end face of the connecting pipe 23, generating a certain pressure between the silicone plate 212 and the toothed structure on the end face of the connecting pipe 23. Under the action of pressure, the silicone plate 212 deforms, thereby limiting the rotation angle of the connecting pipe 23. The connecting pipe 23 maintains a certain rotational damping in its initial state. When the lower cantilever 21 drives the connecting pipe 23 to rotate, the copper wire coil 25 wound around the outside of the coil frame 24 will produce an angle change with the outer magnetic ring 26, causing the copper wire coil 25 to generate current. By monitoring whether there is current inside the copper wire coil 25, the magnetic pole direction of the electromagnet 28 is adjusted. When there is no current inside the copper wire coil 25, the magnetic pole direction of the electromagnet 28 is opposite to the magnetic pole direction of the permanent magnet at the top of the transmission column 211. When there is current inside the copper wire coil 25, the magnetic pole direction of the electromagnet 28 is the same as the magnetic pole direction of the permanent magnet at the top of the transmission column 211. This reduces the rotational damping of the connecting pipe 23 when it rotates. At the instant the connecting pipe 23 stops rotating, the silicone plate 212 contacts the toothed structure at the top of the connecting pipe 23, restricting the position of the connecting pipe 23. At the same time, all contents not described in detail in this specification are prior art known to those skilled in the art.
[0029] During operation, when the lower cantilever 21 drives the connecting pipe 23 to rotate, the copper wire coil 25 wound around the outside of the coil frame 24 will experience an angular change with the outer magnetic ring 26, causing current to flow into the copper wire coil 25. The direction of the electromagnet 28's magnetic poles is adjusted by monitoring whether current is present inside the copper wire coil 25. When there is no current inside the copper wire coil 25, the direction of the electromagnet 28's magnetic poles is opposite to the direction of the permanent magnet at the top of the transmission column 211. When there is current inside the copper wire coil 25, the direction of the electromagnet 28's magnetic poles is the same as the direction of the permanent magnet at the top of the transmission column 211. This reduces the rotational damping of the connecting pipe 23 when it rotates, and at the instant the connecting pipe 23 stops rotating, the silicone plate 21... 2. The toothed structure at the top of the connecting pipe 23 contacts the connecting pipe 23, restricting the position of the connecting pipe 23 so as to adjust the position of the box 1. The direction of the magnetic pole of the electromagnet 28 is controlled by a single-chip microcomputer with a current detection module. The reinforcing rib 18 is located at both ends of the four vertical surfaces of the inner wall of the box 1. The reinforcing rib 18 can increase the cross-sectional area of the box 1, thereby increasing the moment of inertia of the cross section of the box 1, thereby enhancing the bending and torsional resistance of the box 1, so as to avoid deformation of the box 1 after bearing the load. In addition, the cross sections of the lower cantilever 21 and the upper cantilever 22 are similar to the cross section of the box 1, which can increase the bending resistance of the lower cantilever 21 and the upper cantilever 22, thereby improving the load-bearing capacity of the lower cantilever 21 and the upper cantilever 22, so as to improve the overall load-bearing capacity.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A trapezoidal convex stainless steel rod four-fold load-bearing box device for tower cranes and bridges, comprising a box (1), characterized in that: End caps (16) are fixedly installed at both ends of the box (1), and a hanging pipe (17) is fixedly installed above the end caps (16). The inner wall of the box (1) is provided with reinforcing ribs (18), and a steering mechanism (2) is fixedly installed above the hanging pipe (17). The steering mechanism (2) includes a lower cantilever (21) fixedly installed at the top of the suspension pipe (17), an upper cantilever (22) movably installed above the lower cantilever (21), and connecting pipes (23) movably installed above the lower cantilever (21) and on the upper and lower sides of the upper cantilever (22). A coil frame (24) is fixedly installed on the outside of the connecting pipe (23), and a copper wire coil (25) is wound around the outside of the coil frame (24). A coil is fixedly installed inside the upper cantilever (22). A magnetic ring (26) is provided. A fixing plate (27) is fixedly installed inside the upper cantilever (22). An electromagnet (28) is fixedly installed below the fixing plate (27). A limiting plate (29) is fixedly installed below the fixing plate (27). Nylon sleeves (210) are fixedly installed at both ends of the limiting plate (29). A transmission column (211) is fixedly installed inside the nylon sleeve (210). A silicone plate (212) is fixedly installed at the bottom end of the transmission column (211).
2. The four-fold load-bearing box device with trapezoidal protruding stainless steel rod of the gantry crane and suspension bridge according to claim 1, characterized in that: The front side of the box (1) is provided with a left-right symmetrical sliding groove structure. A limit rod (11) is fixedly installed inside the sliding groove structure on the front side of the box (1). A support rod (12) is movably installed on the outside of the limit rod (11).
3. The four-fold load-bearing box device with trapezoidal protruding stainless steel rod for gantry cranes and suspension bridges according to claim 2, characterized in that: A storage platform (13) is fixedly installed above the support rod (12), a connecting plate (14) is fixedly installed below the limiting rod (11), a drawer (15) is fixedly installed below the connecting plate (14), the box body (1) has a trapezoidal cross-section, and the reinforcing rib (18) is located at both ends of the four vertical surfaces inside the box body (1).
4. The four-fold load-bearing box device with trapezoidal protruding stainless steel rod of the gantry crane and suspension bridge according to claim 1, characterized in that: The lower cantilever (21) and the upper cantilever (22) are connected by a connecting pipe (23), and the upper cantilever (22) and the mounting surface are connected by a connecting pipe (23). The top end face of the connecting pipe (23) is provided with a toothed structure.
5. The four-fold load-bearing box device with trapezoidal protruding stainless steel rod of the gantry crane and suspension bridge according to claim 1, characterized in that: The connecting tube (23) and the upper cantilever (22) at the bottom end form a rotatable connection. The coil frame (24) is located at the center of the magnetic ring (26) and its outer edge does not contact the magnetic ring (26). The electromagnet (28) is fitted and installed on the left and right sides of the fixing plate (27). The limiting plate (29) is fixedly connected to the upper cantilever (22) through the fixing plate (27).
6. The four-fold load-bearing box device with trapezoidal protruding stainless steel rod of the gantry crane and suspension bridge according to claim 1, characterized in that: The transmission column (211) and the nylon sleeve (210) form a sliding connection. The silicone plate (212) is installed below the nylon sleeve (210) on both sides of the limiting plate (29) through the transmission column (211), and the silicone plate (212) is located above the toothed structure of the connecting pipe (23).