Medical tower crane arm

Abstract

The utility model discloses a medical tower crane arm which comprises a first cantilever, a second cantilever is connected in the first cantilever in a sliding mode, a U-shaped fixing plate is fixedly connected to the upper end of the first cantilever, a U-shaped rod is connected to the U-shaped fixing plate in a sliding mode, and a spring is fixedly connected to the upper wall in the U-shaped fixing plate. By lifting the U-shaped rod, the spring is pressed to enable the rod to be separated from the fixing groove and unlock the second cantilever, at the moment, an operator can push the motor box to enable the second cantilever to freely stretch out and draw back in the first cantilever, after the second cantilever is adjusted to a proper length, the U-shaped rod is loosened, the spring immediately resets, the U-shaped rod is driven to move downwards and be clamped into the corresponding fixing groove, and the second cantilever is fixed. In the process, the second cantilever can be rapidly adjusted and fixed only through three simple actions of lifting, pushing and loosening, the process is simplified, the efficiency is improved, and it is ensured that the operation is not affected.

Description

Technical Field

[0001] This utility model relates to the field of medical pendant technology, and in particular to a medical pendant tower arm. Background Technology

[0002] Gas supply towers are indispensable medical devices in modern hospital operating rooms, specifically designed for the terminal connection of medical gases such as oxygen, suction, compressed air, and nitrogen. They ensure safe and stable operation through precise motor-controlled platform lifting. A balanced design maintains the platform's level, further guaranteeing safety. The powerful motor drive allows for rapid and efficient operation. With its superior performance, the gas supply tower provides a solid and reliable guarantee for the operating room's gas supply.

[0003] A search revealed a medical pendant lifting arm with patent number "CN220899025U". The procedure involves the operator activating the pendant's drive motor to rotate a cam, releasing the pressure on the movable locking teeth. At this point, the return spring's elasticity causes the movable locking teeth to separate from the movable plate, releasing its restriction. The operator can then push the lifting rod, using the cooperation between the movable plate and the first cantilever to retract the movable plate into the first cantilever. Subsequently, the drive motor is activated again, causing the cam to press against the movable locking teeth, and the cooperation between the movable locking teeth and the movable plate achieves positioning of the first and second cantilever arms. This process allows for flexible control of the length between the first and second cantilever arms, meeting the needs of the medical pendant in different surgical scenarios. However, each adjustment of the length requires activating two drive motors in opposite directions, undoubtedly increasing operational complexity. This could lead to difficulties in quickly adjusting the pendant lifting arm length in emergency situations, thus affecting surgical efficiency. Therefore, this application proposes a medical pendant lifting arm. Utility Model Content

[0004] The U-shaped rods correspond one-to-one with the fixed slots. A motor box is fixedly connected to the side wall of the second cantilever. A rectangular sleeve is fixedly connected to the lower end of the motor box. A telescopic rod is slidably connected inside the rectangular sleeve. A support plate is fixedly connected to the lower end of the telescopic rod. A telescopic mechanism for telescopic rod extension and retraction is installed inside the rectangular sleeve. A mechanism box is fixedly connected to the side wall of the first cantilever. A rotating rod is fixedly connected inside the mechanism box. The rotating rod passes through the mechanism box. A mounting plate is rotatably connected to the upper end of the rotating rod. A rotating mechanism for rotating the rotating rod is installed inside the mechanism box.

[0005] Preferably, the telescopic mechanism includes a connecting rod, a threaded rod, and a nut. The threaded rod is rotatably mounted on the lower end of the motor box, and the nut is threaded onto the threaded rod. One end of the connecting rod is fixedly mounted on the lower end of the nut, and the other end of the connecting rod is fixedly mounted on the upper end of the telescopic rod. A guide mechanism for guiding the nut is installed inside the rectangular sleeve.

[0006] Preferably, the guide mechanism includes two sliders, which are fixedly installed on the side wall of the nut, and the rectangular sleeve has a groove on its inner wall, in which the slider slides.

[0007] Preferably, a motor is fixedly connected inside the motor box, and the output shaft of the motor is fixedly connected to a threaded rod.

[0008] Preferably, the rotating mechanism includes a long rod, a handwheel, a worm gear, and a worm. The long rod is rotatably mounted on the inner wall of the mechanism box and passes through the mechanism box. The worm is fixedly mounted on the long rod, the worm gear is fixedly mounted on the rotating rod, and the worm meshes with the worm gear. The handwheel is fixedly mounted on the long rod.

[0009] Preferably, the handwheel is made of a non-slip material.

[0010] Preferably, the upper end of the motor box has several heat dissipation holes.

[0011] The beneficial effects of this utility model are:

[0012] By pulling the U-shaped rod upwards, the spring is compressed, causing the U-shaped rod to disengage from the fixing slot and releasing the fixation of the second cantilever. At this point, the operator pushes the motor box, allowing the second cantilever to freely extend and retract within the first cantilever. When the appropriate length is reached, the U-shaped rod is released, and the compressed spring instantly returns to its original position, causing the U-shaped rod to move downwards and insert into the corresponding fixing slot, thus fixing the second cantilever. The operator only needs simple pulling, pushing, and releasing actions to complete the extension, retraction, adjustment, and fixation of the second cantilever, greatly simplifying the workflow, improving work efficiency, and avoiding any impact on the efficiency of the surgery.

[0013] By turning the handwheel, the handwheel drives the long rod to rotate, which in turn drives the worm gear to rotate, causing the rotating rod to rotate and the second cantilever to rotate as a whole. This allows for easy adjustment of the equipment's angle to meet different work requirements, making the equipment more flexible and adaptable to various complex working environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a medical pendant tower arm proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the motor box proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the rectangular sleeve proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the mechanism box proposed in this utility model;

[0018] Figure 5 for Figure 1 Enlarged structural diagram at point A;

[0019] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Mounting plate; 2. Rotating rod; 3. Mechanism box; 4. Long rod; 5. Handwheel; 6. First cantilever; 7. Second cantilever; 8. U-shaped rod; 9. Fixing groove; 10. Heat dissipation hole; 11. Motor box; 12. Rectangular sleeve; 13. Telescopic rod; 14. Support plate; 15. Motor; 16. Connecting rod; 17. Threaded rod; 18. Nut; 19. Slide groove; 20. Worm gear; 21. Worm; 22. U-shaped fixing plate; 23. Spring; 24. Slider. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] like Figures 1 to 6As shown, a medical pendant tower arm includes a first cantilever 6, a second cantilever 7 slidably connected within the first cantilever 6, a U-shaped fixing plate 22 fixedly connected to the upper end of the first cantilever 6, a U-shaped rod 8 slidably connected to the U-shaped fixing plate 22, a spring 23 fixedly connected to the upper inner wall of the U-shaped fixing plate 22, and the end of the spring 23 away from the U-shaped fixing plate 22 fixedly mounted on the U-shaped rod 8. The second cantilever 7 has several fixing slots 9, with each U-shaped rod 8 corresponding to a fixing slot 9. The side wall of the second cantilever 7 is fixedly connected to... There is a motor box 11, and a rectangular sleeve 12 is fixedly connected to the lower end of the motor box 11. A telescopic rod 13 is slidably connected inside the rectangular sleeve 12. A support plate 14 is fixedly connected to the lower end of the telescopic rod 13. A telescopic mechanism for telescopically extending and retracting the telescopic rod 13 is installed inside the rectangular sleeve 12. A mechanism box 3 is fixedly connected to the side wall of the first cantilever 6. A rotating rod 2 is fixedly connected inside the mechanism box 3. The rotating rod 2 passes through the mechanism box 3. A mounting plate 1 is rotatably connected to the upper end of the rotating rod 2. A rotating mechanism for rotating the rotating rod 2 is installed inside the mechanism box 3. During operation, pull the U-shaped rod 8 upwards to move it out of the fixing slot 9. At this time, the spring 23 is compressed, and the second cantilever 7 is released from its fixation in the first cantilever 6. The operator can push or pull the motor box 11 by hand to extend or retract the second cantilever 7 within the first cantilever 6. When the appropriate length is reached, release the U-shaped rod 8. At this time, the compressed spring 23 returns to its original position, causing the U-shaped rod 8 to move down instantly and insert into the corresponding fixing slot 9, thus completing the fixing operation of the second cantilever 7.

[0024] like Figure 1 and Figure 3 As shown, the telescopic mechanism includes a connecting rod 16, a threaded rod 17, and a nut 18. The threaded rod 17 is rotatably mounted on the lower end of the motor housing 11, and the nut 18 is threaded onto the threaded rod 17. One end of the connecting rod 16 is fixedly mounted on the lower end of the nut 18, and the other end of the connecting rod 16 is fixedly mounted on the upper end of the telescopic rod 13. During operation, the rotation of the threaded rod 17 causes the nut 18 to move up or down, thereby adjusting the length of the telescopic rod 13 and improving the flexibility of the equipment. A guide mechanism for guiding the nut 18 is installed inside the rectangular sleeve 12.

[0025] like Figure 3 and Figure 6As shown, the guiding mechanism includes two sliders 24, which are fixedly mounted on the side wall of the nut 18. The rectangular sleeve 12 has a groove 19 on its inner wall, and the sliders 24 slide within the groove 19. During operation, the sliders 24 slide freely within the groove 19, while the side wall of the groove 19 limits their movement. This ensures that the nut 18 can only slide up and down along the surface of the groove 19, preventing it from shifting due to the rotation of the threaded rod 17. This improves the stability of the pallet 14, prevents items on the pallet 14 from falling, and avoids unnecessary losses.

[0026] like Figure 1 and Figure 2 As shown, a motor 15 is fixedly connected inside the motor housing 11, and the output shaft of the motor 15 is fixedly connected to the threaded rod 17. During operation, the motor 15 provides driving power to the threaded rod 17, ensuring that the threaded rod 17 can rotate accurately, thus preparing for the operation of the telescopic mechanism.

[0027] like Figure 1 and Figure 4 As shown, the rotating mechanism includes a long rod 4, a handwheel 5, a worm gear 20, and a worm 21. The long rod 4 is rotatably mounted on the inner wall of the mechanism box 3 and passes through the mechanism box 3. The worm 21 is fixedly mounted on the long rod 4, and the worm gear 20 is fixedly mounted on the rotating rod 2. The worm 21 meshes with the worm gear 20. The handwheel 5 is fixedly mounted on the long rod 4. During operation, only the worm 21 drives the worm gear 20 to rotate, while the worm gear 20 cannot drive the worm 21 to rotate. Therefore, the angle adjustment of the equipment can only be achieved by rotating the handwheel 5 to make the worm 21 drive the worm gear 20 to rotate, avoiding changes in the equipment angle due to operator contact. The self-locking structure between the worm gear 20 and the worm 21 improves the stability of the equipment.

[0028] like Figure 1 and Figure 4 As shown, the handwheel 5 is made of a non-slip material. During operation, the non-slip material prevents the operator's hand from slipping off the handwheel 5, thus avoiding inaccurate angle adjustments to the equipment. It also prevents the operator's hand from slipping off the handwheel 5 and causing sprains.

[0029] like Figure 1 and Figure 2 As shown, the motor housing 11 has several heat dissipation holes 10 at its upper end. During operation, the heat generated by the motor 15 inside the motor housing 11 can be dissipated in a timely and effective manner through the heat dissipation holes 10, preventing heat accumulation and overheating of the equipment. This is crucial for maintaining the normal operation of the motor 15 and extending its service life.

[0030] In this invention, the U-shaped rod 8 is pulled upwards, causing it to move out of the fixing groove 9. At this time, the spring 23 is compressed, and the second cantilever 7 is released from its fixation within the first cantilever 6. The operator can push or pull the motor box 11 by hand to extend or retract the second cantilever 7 within the first cantilever 6. When the appropriate length is reached, the U-shaped rod 8 is released, and the compressed spring 23 returns to its original position, causing the U-shaped rod 8 to move downwards instantly and insert into the corresponding fixing groove 9, thus completing the fixing operation of the second cantilever 7.

[0031] Start motor 15, which drives threaded rod 17 to rotate. The rotation of threaded rod 17 causes nut 18 to move downward. Nut 18, through connecting rod 16, drives telescopic rod 13 to move downward. Reversing motor 15 will cause telescopic rod 13 to move upward. This can be adjusted flexibly according to specific circumstances. Turn handwheel 5, which drives long rod 4 to rotate. Since worm gear 20 meshes with worm 21, long rod 4 drives worm gear 20 to rotate through worm 21. Worm gear 20 drives rotating rod 2 to rotate, thereby causing mechanism box 3 and second cantilever 7 to rotate as a whole, thus achieving the adjustment of the equipment angle.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0033] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A medical overhanging tower boom comprising a first cantilever (6), characterized in that, The first cantilever (6) is slidably connected with a second cantilever (7), the upper end of the first cantilever (6) is fixedly connected with a U-shaped fixed plate (22), the U-shaped fixed plate (22) is slidably connected with a U-shaped rod (8), the inner upper wall of the U-shaped fixed plate (22) is fixedly connected with a spring (23), the end of the spring (23) away from the U-shaped fixed plate (22) is fixedly installed on the U-shaped rod (8), a plurality of fixed grooves (9) are formed in the second cantilever (7), the U-shaped rod (8) corresponds to the fixed grooves (9) one by one, the side wall of the second cantilever (7) is fixedly connected with a motor box (11), the lower end of the motor box (11) is fixedly connected with a rectangular sleeve (12), the rectangular sleeve (12) is slidably connected with a telescopic rod (13), the lower end of the telescopic rod (13) is fixedly connected with a supporting plate (14), a telescopic mechanism for telescoping the telescopic rod (13) is installed in the rectangular sleeve (12), the side wall of the first cantilever (6) is fixedly connected with a mechanism box (3), the mechanism box (3) is fixedly connected with a rotating rod (2), the rotating rod (2) penetrates through the mechanism box (3), the upper end of the rotating rod (2) is rotatably connected with a mounting plate (1), and a rotating mechanism for rotating the rotating rod (2) is installed in the mechanism box (3).

2. A medical tower arm as defined in claim 1, wherein, The telescopic mechanism comprises a connecting rod (16), a threaded rod (17) and a nut (18), the threaded rod (17) is rotatably installed at the lower end of the motor box (11), the nut (18) is threadedly installed on the threaded rod (17), one end of the connecting rod (16) is fixedly installed at the lower end of the nut (18), and the other end of the connecting rod (16) is fixedly installed at the upper end of the telescopic rod (13). A guide mechanism for guiding the nut (18) is installed in the rectangular sleeve (12).

3. A medical tower arm as defined in claim 2, wherein, The guide mechanism comprises two sliding blocks (24), the sliding blocks (24) are fixedly installed on the side wall of the nut (18), and a sliding groove (19) is formed in the opposite inner wall of the rectangular sleeve (12). The sliding blocks (24) slide in the sliding groove (19).

4. The medical tower arm of claim 1, wherein, The motor box (11) is fixedly connected with a motor (15), and the output shaft of the motor (15) is fixedly connected with the threaded rod (17).

5. The medical tower arm of claim 1, wherein, The rotating mechanism comprises a long rod (4), a hand wheel (5), a worm wheel (20) and a worm (21), the long rod (4) is rotatably installed on the inner wall of the mechanism box (3) and penetrates through the mechanism box (3), the worm (21) is fixedly installed on the long rod (4), the worm wheel (20) is fixedly installed on the rotating rod (2), the worm (21) is engaged with the worm wheel (20), and the hand wheel (5) is fixedly installed on the long rod (4).

6. A medical tower arm according to claim 5, wherein, The material of the hand wheel (5) is anti-skid material.

7. A medical tower arm as in claim 1, wherein, A plurality of heat dissipation holes (10) are formed in the upper end of the motor box (11).

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