A self-locking swing arm with good flexibility

Abstract

The present invention relates to the field of mechanical arm technology, and discloses a self-locking swing arm with good flexibility, including a fixed cylinder, a rotating cylinder, a U-shaped seat, a hollow block 1 and a support rod, the top of the fixed cylinder is rotatably mounted with a rotating cylinder, the annular side of the rotating cylinder is mounted with a U-shaped seat, the top of the U-shaped seat is mounted with a hollow block 1, the top of the hollow block 1 is fixedly mounted with a support rod, the inside of the hollow block 1 is rotatably mounted with a ball head, and the inside of the hollow block 1 is movably mounted with a push block on the right side. The present invention can not only facilitate the adjustment of the support rod position on the horizontal and vertical planes through the design of the hollow block 1 and the ball head, but also can promote the movement of the moving cylinder 2 and the moving cylinder 1 by rotating the threaded cylinder, thereby promoting the movement of the push rod, and can also rotate the rotating ball 1 and the rotating ball 2 inside the hollow shell 1 and the hollow shell 2, thereby fine-tuning the drug output end of the anesthesia machine.

Description

Technical Field

[0001] The invention relates to the technical field of medical mechanical arms, in particular to a self-locking swing arm with good flexibility. Background Art

[0002] Among medical devices, there is a type of robotic arm that is specifically used for surgical infusion and gas delivery. One end of this type of robotic arm is fixed, and the other end can be bent, shortened, and extended in any direction according to the needs of doctors or nurses. Most of the existing medical robotic arms are connected by multi-section rotating arms, and the shortening and extension of the rotating arms are achieved by hinged locking between the arms.

[0003] The currently used robotic arms have certain defects during use. It is inconvenient to adjust and fix the support rod during the use of the medical device, and it is inconvenient to adjust and control according to actual needs, which reduces the practicality of the medical device. Therefore, it is very necessary to propose a self-locking swing arm with good flexibility. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a self-locking swing arm with good flexibility, which mainly solves the problem that the support rod is fixed in position, which makes it inconvenient to adjust and fix the position according to different patients, thereby reducing the practicality of the anesthesia machine.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A self-locking swing arm with good flexibility comprises a fixed cylinder, a rotating cylinder, a U-shaped seat, a hollow block 1 and a support rod, the top of the fixed cylinder is rotatably mounted with a rotating cylinder, the U-shaped seat is fixedly mounted on the annular side surface of the rotating cylinder, a hollow block 1 is mounted on the top of the U-shaped seat, the top of the hollow block 1 is fixedly mounted with a support rod, a ball head is rotatably mounted inside the hollow block 1, a pushing block is movably mounted on the right side of the hollow block 1, a sealing block is mounted on the right end of the hollow block 1, a square block is fixedly mounted on the bottom end of the support rod, and a hollow rod is fixedly mounted inside the square block, a push rod is slidably mounted inside the hollow rod, the left end of the push rod passes through the sealing block and is fixedly connected to the pushing block, the left end of the push rod is fixedly mounted on the sealing block, a hollow block 2 is fixedly mounted on the right side of the bottom end of the support rod, and the left end of the hollow block 2 is fixedly mounted on the right end of the hollow rod, a cylindrical block is slidably mounted inside the hollow block 2, and the left end of the cylindrical block is fitted with the right end of the push rod, and a threaded The transmission gear of said sliding panel also is provided with an interlocking wheel which is cooperatively connected with said sliding panel, and the interlocking wheel is cooperatively connected with said sliding panel.

[0009] Furthermore, a cylinder is rotatably mounted at the front end of the second support seat, a T-shaped round block is movably mounted inside the cylinder, a spline groove is provided at the rear end of the T-shaped round block, and the size of the spline groove cross section is the same as the size of the spline shaft cross section.

[0010] On the basis of the above scheme, two square grooves are symmetrically provided on the annular side of the cylinder, two square blocks are symmetrically fixedly installed on the annular side of the T-shaped circular block, and the square blocks are slidably installed inside the slide groove.

[0011] Furthermore, a fixing plate is fixedly installed at the front end of the hollow block 2, and a face gear 1 is movably installed at the front end of the fixing plate, the face gear 1 is movably installed on the annular side surface of the movable cylinder, a spring is fixedly installed at the rear end of the face gear 1, and the rear end of the spring is fixedly installed on the fixing plate, a supporting shell is fixedly installed at the rear end of the supporting block, and face gear 2 is fixedly installed inside the supporting shell, and face gear 2 is aligned front and back with face gear 1, a friction plate is installed between face gear 1 and face gear 2, and face gear 1 and the friction plate are installed inside the supporting shell.

[0012] On the basis of the above scheme, two square plates are symmetrically fixedly installed on the top of the U-shaped seat, fixed plates are symmetrically fixedly installed on the front and rear ends of the hollow block, and a rotating shaft is fixedly installed on the fixed plate, and the rotating shaft is rotatably installed inside the square plate, and the two fixed plates are fixedly installed with round rods at one end away from each other, and an arc groove is opened at one end of the square plate close to the fixed plate, and one end of the round rod extends into the arc groove.

[0013] As a further scheme of the present invention, a gear 1 is fixedly installed on the rear end of one of the rotating shafts, a rotating shaft 2 is rotatably installed inside the U-shaped seat, and the rotating shaft 2 is located on the left side of the rotating shaft 1, a gear 2 is fixedly installed on the annular side surface of the rotating shaft 2, and the gear 1 and the gear 2 are meshed, a torsion spring is installed on the annular side surface of the rotating shaft 2, a limit block 1 is fixedly installed on the front end of the gear 2, and a limit block 2 is fixedly installed on the bottom end of the U-shaped seat, and both ends of the torsion spring extend to the inside of the limit block 1 and the limit block 2 respectively.

[0014] Furthermore, a rotating rod is fixedly installed at the bottom end of the ball head, and the bottom end of the rotating rod extends into the interior of the fixed cylinder. A fastening bolt is installed on the annular side surface of the fixed cylinder, and the rotating rod is installed on the annular side surface of the fastening bolt.

[0015] On the basis of the above scheme, a hollow tube is installed at the bottom end of the support block, a cylindrical rod is slidably installed inside the hollow tube, the top end of the cylindrical rod is fitted with the second annular side surface of the moving cylinder, the second annular surface of the moving cylinder and the top end of the cylindrical rod are processed with inclined surface 2, and the cylindrical rod and the moving cylinder 2 are fitted through inclined surface 2, a hollow shell 1 is fixedly installed at the bottom end of the hollow tube, and a rotating ball 1 is rotatably installed inside the hollow shell 1, a hollow shell 2 is fixedly installed at the bottom end of the rotating ball 1, and the hollow shell 2 is fixedly installed at the bottom end of the rotating ball 1, and the hollow shell 2 is fixedly installed at the bottom end. A rotating ball 2 is rotatably installed inside the core shell 2, a pressure holding bowl 1 is slidably installed inside the hollow shell 1, and the pressure holding bowl 1 is located on the upper side of the rotating ball 1, a pressure holding bowl 2 is slidably installed inside the hollow shell 2, and the pressure holding bowl 2 is located on the upper side of the rotating ball 2, the pressure holding bowl 1 is fixedly installed on the bottom end of the cylindrical rod, a connecting rod is slidably installed inside the rotating ball 2, and the bottom end of the connecting rod extends to the inside of the hollow shell 2 and is fixedly installed on the top of the pressure holding bowl 2, and the top of the connecting rod fits with the top of the inside of the pressure holding bowl 1.

[0016] As a further solution of the present invention, two strip grooves are symmetrically provided inside the second bevel gear, two strip rods are symmetrically fixedly installed on the annular side surface of the threaded cylinder, and the strip rods are slidably installed inside the strip grooves.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a self-locking swing arm with good flexibility, which has the following beneficial effects:

[0019] 1. The design of the hollow block 1 and the ball head makes it easy to adjust the position of the support rod on the horizontal and vertical planes. The support rod is rotated in the horizontal direction, and the rotation of the support rod drives the hollow block 1 to rotate horizontally around the ball head, thereby causing the rotating cylinder to rotate inside the fixed cylinder, thereby achieving the purpose of adjusting the horizontal position of the support rod. The support rod is rotated in the vertical direction, and the rotation of the support rod drives the hollow block 1 to rotate vertically around the ball head. The rotation of the hollow block 1 drives the rotating shaft 1 to rotate through the fixed plate, and the rotation of the rotating shaft 1 drives the gear 1 to rotate. The rotation of the gear 1 drives the gear 2 to rotate, and then the rotation of the gear 2 squeezes the torsion spring, so that the torsion spring generates torsion. The torsion of the torsion spring facilitates the rotation of the rotating rod to a horizontal position. This design facilitates the adjustment of the position of the support rod, and thus facilitates the wide adjustment of the position of the drug output end of the anesthesia machine, thereby improving the stability of the anesthesia machine.

[0020] 2. The threaded cylinder rotates to push the moving cylinder two and the moving cylinder one to move, thereby pushing the push rod to move, thereby fixing the hollow block one, and the motor drives the bevel gear one to rotate. Because the bevel gear one is meshed with the bevel gear two, the rotation of the bevel gear one drives the bevel gear two to rotate, thereby making the threaded cylinder rotate horizontally along the threaded rod. The horizontal movement of the threaded cylinder pushes the moving cylinder two to move horizontally backward. During the backward movement of the moving cylinder two, the moving cylinder one is driven to move backward. Because the moving cylinder one is processed with an inclined surface one near one end of the cylindrical block, and the inclined surface one is in contact with the cylindrical block, the moving cylinder one moves through the inclined surface one to squeeze the cylindrical block to move, and the cylindrical block moves and squeezes the push rod to move. The push rod moves and drives the pushing block to move, and the pushing block moves and fits with the ball head, thereby pushing the ball head to drive the rotating rod to rotate around the fastening bolt, thereby causing the ball head to move slightly and fit with the inner wall of the hollow block one, thereby achieving the purpose of fixing the hollow block one and realizing the function of fixing the position of the support rod.

[0021] 3. By rotating the rotating ball one and the rotating ball two inside the hollow shell one and the hollow shell two, the position of the drug output end of the anesthesia machine is finely adjusted, the direction of the hollow shell two is changed by rotating the rotating ball one inside the hollow shell one, and then the direction of the rotating ball two is changed by rotating the rotating ball two inside the hollow shell two, thereby changing the direction of the drug output end of the anesthesia machine, thereby improving the use range of the anesthesia machine.

[0022] 4. The rotating ball one and the rotating ball two are locked inside the hollow shell one and the hollow shell two by squeezing the cylindrical rod to move. The movable cylinder two moves backward to squeeze the cylindrical rod through the inclined plane two, so that the cylindrical rod moves downward. The downward movement of the cylindrical rod drives the holding bowl one to move and fit with the rotating ball one, so that the rotating ball one is locked inside the hollow shell one. The downward movement of the holding bowl one drives the connecting rod to move downward. The downward movement of the connecting rod pushes the holding bowl two to move downward and fit with the rotating ball two, so that the rotating ball two is locked inside the hollow shell two, so as to fix the position of the drug output end of the anesthesia machine, thereby improving the stability of the use of the anesthesia machine.

[0023] 5. The design of face gear 1, face gear 2 and friction plate makes it easy to rotate and fix the position of the support block in the vertical direction. The rotation of the support block drives face gear 2 to rotate through the support shell. The rotation of face gear 2 squeezes face gear 1, causing face gear 1 to move backward. The backward movement of face gear 1 squeezes the spring, causing the spring to generate elastic force. When face gear 1 is realigned with face gear 2 front to back, under the action of the spring elastic force, face gear 1 moves and re-engages with face gear 2, thereby fixing the position of the support block. The design of the friction plate increases the friction between face gear 1 and face gear 2, thereby preventing face gear 1 and face gear 2 from automatically rotating due to looseness, thereby improving the stability of the support block after rotation adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a self-locking swing arm with good flexibility proposed by the present invention;

[0025] Figure 2 A schematic cross-sectional view of a hollow block of a self-locking swing arm with good flexibility proposed by the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the structure of a movable cylinder with a self-locking swing arm having good flexibility proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the partially enlarged structure of the A position of a self-locking swing arm with good flexibility proposed by the present invention;

[0028] Figure 5 This is a schematic cross-sectional view of a hollow block of a self-locking swing arm with good flexibility proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the partially enlarged structure at position B of a self-locking swing arm with good flexibility proposed by the present invention.

[0030] In the figure: 1, fixed cylinder; 2, rotating cylinder; 3, U-shaped seat; 4, hollow block 1; 5, ball head; 7, rotating rod; 8, fixed plate; 9, rotating shaft 1; 10, round rod; 11, gear 1; 12, gear 2; 13, rotating shaft 2; 14, torsion spring; 15, limit block 1; 16, limit block 2; 17, support rod; 18, sealing block; 19, pushing block; 21, hollow rod; 22, push rod; 23, hollow block 2; 24, cylindrical block; 25, threaded rod; 26, moving cylinder 1; 27, fixed plate; 28 , face gear one; 29, friction plate; 30, face gear two; 31, support shell; 32, square rod; 33, support block; 34, moving cylinder two; 35, threaded cylinder; 36, bevel gear one; 37, bevel gear two; 38, motor; 39, spline shaft; 40, T-shaped round block; 41, cylinder; 42, hollow tube; 43, cylindrical rod; 44, hollow shell one; 45, pressure holding bowl one; 46, rotating ball one; 47, hollow shell two; 48, pressure holding bowl two; 49, rotating ball two; 50, connecting rod; 51, spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 6A self-locking swing arm with good flexibility comprises a fixed cylinder 1, a rotating cylinder 2, a U-shaped seat 3, a hollow block 4 and a support rod 17. The rotating cylinder 2 is rotatably installed on the top of the fixed cylinder 1 through a bearing. The U-shaped seat 3 is welded on the annular side of the rotating cylinder 2. This design facilitates the rotatable installation of the rotating cylinder 2 and the U-shaped seat 3, and then facilitates the rotation adjustment of the support rod 17 in the horizontal position. A hollow block 4 is installed on the top of the U-shaped seat 3. The support rod 17 is fixedly installed on the top of the hollow block 4 through a connecting plate. This design facilitates the fixed connection between the support rod 17 and the hollow block 4. A ball head 5 is rotatably installed inside the hollow block 4. The design of the ball head 5 facilitates the rotation of the hollow block 4 around the ball head 5, and then facilitates the adjustment of the position of the support rod 17. A push rod is movably installed on the right side of the hollow block 4. The design of the push block 19 is convenient for pushing the ball head 5 to rotate and fit with the inner wall of the hollow block 4. The right end of the hollow block 4 is installed with a sealing block 18 through a threaded connection. The design of the sealing block 18 is convenient for limiting the pushing block 19 inside the hollow block 4 to prevent the pushing block 19 from falling off from the inside of the hollow block 4. The bottom end of the support rod 17 is installed with a square block through a screw, and a hollow rod 21 is clamped and installed inside the square block. This design is convenient for the fixed installation of the hollow rod 21. A push rod 22 is slidably installed inside the hollow rod 21. The left end of the push rod 22 passes through the sealing block 18 and is fixedly connected to the pushing block 19. The movement of the push rod 22 facilitates the movement of the pushing block 19, thereby fixing the position of the hollow block 4. The left end of the push rod 22 is fixedly installed on the sealing block 18. The right side of the bottom end of the support rod 17 A hollow block 23 is welded, and the left end of the hollow block 23 is fixedly installed on the right end of the hollow rod 21. A cylindrical block 24 is slidably installed inside the hollow block 23, and the left end of the cylindrical block 24 fits with the right end of the push rod 22. The movement of the cylindrical block 24 facilitates the movement of the push rod 22. A threaded rod 25 is fixedly installed on the rear end of the hollow block 23 through a nut. A moving cylinder 1 26 and a moving cylinder 2 34 are slidably installed on the threaded rod 25, and a moving cylinder 2 34 is fixedly installed on the front end of the moving cylinder 1 26. An inclined surface 1 is provided at one end of the moving cylinder 1 26 near the cylindrical block 24, and the inclined surface 1 fits with the cylindrical block 24. The moving cylinder 1 26 moves through the inclined surface 1 to push the cylindrical block 24 to move, thereby facilitating the movement of the push rod 22. The outer side of the moving cylinder 2 34 is installed There is a support block 33, and a square rod 32 is welded on the top of the support block 33. The front end of the square rod 32 is installed with a support seat 1 through bolts, and a motor 38 is installed on the top of the support seat through bolts. The bottom end of the motor 38 passes through the support seat 1 and is installed with a bevel gear 1 36 through a key connection. The front end of the moving cylinder 2 34 is equipped with a threaded cylinder 35, and a thrust bearing is installed on the rear side of the inside of the threaded cylinder 35. The rear end of the thrust bearing fits with the front end of the moving cylinder 2 34. The design of the thrust bearing prevents the rotation of the threaded cylinder 35 from driving the moving cylinder 2 34 to rotate. The front end of the threaded rod 25 passes through the moving cylinder 1 26 and the moving cylinder 2 34 and is installed inside the threaded cylinder 35. The rotation of the threaded cylinder 35 facilitates movement along the threaded rod 25. The front end of the support block 33 is installed with a support seat 2 through bolts.A threaded cylinder 35 is movably installed at the rear end of the second support seat, so that the threaded cylinder 35 can move horizontally backward along the second support seat. The front end of the threaded cylinder 35 passes through the second support seat and is installed with a spline shaft 39 through bolts. A bevel gear 2 37 is rotatably installed at the rear end of the second support seat through a bearing, and the bevel gear 2 37 is slidably installed on the annular side of the threaded cylinder 35, so that the bevel gear 2 37 can rotate and drive the threaded cylinder 35 to rotate, and the bevel gear 2 37 can slide relatively along the threaded cylinder 35. The bevel gear 1 36 is meshed with the bevel gear 2 37. This design makes it easy for the motor 38 to drive the bevel gear 1 36 to rotate, and then drive the bevel gear 2 37 to rotate.

[0033] In the present invention, it should be noted that a cylinder 41 is rotatably mounted on the front end of the support seat 2 through a bearing, a T-shaped round block 40 is movably mounted inside the cylinder 41, a spline groove is provided at the rear end of the T-shaped round block 40, and the size of the cross section of the spline groove is the same as the size of the cross section of the spline shaft 39. The design of the spline groove and the spline shaft 39 facilitates the rotation of the T-shaped round block 40 to drive the threaded cylinder 35 to rotate, and facilitates the motor 38 to turn the threaded cylinder 35 to rotate when the power is off. Two square grooves are symmetrically processed on the annular side of the cylinder 41, and the T-shaped round block 4 Two square blocks are symmetrically welded on the annular side surface, and the square blocks are slidably installed inside the slide groove. The design of the square blocks and the square groove facilitates the horizontal adjustment of the position of the T-shaped round block 40, facilitates the connection or separation of the spline groove and the spline shaft 39, and facilitates the installation of the T-shaped round block 40 inside the cylinder 41. The front end of the hollow block 23 is installed with a fixed plate 27 by screws, and the front end of the fixed plate 27 is movably provided with a face gear 28, which is movably installed on the annular side surface of the moving cylinder 26, and the rear end of the face gear 28 is welded with a spring 51, and The rear end of the spring 51 is welded on the fixing plate 27. The design of the spring 51 facilitates the movable installation and reset of the face gear 1 28. The rear end of the support block 33 is fixedly installed with a support shell 31, and the face gear 2 30 is fixedly installed inside the support shell 31. The face gear 2 30 is aligned with the face gear 1 28 front and back. A friction plate 29 is installed between the face gear 1 28 and the face gear 2 30. The friction plate 29 is made of rubber. This design facilitates the meshing of the face gear 1 28 and the face gear 2 30 through the friction plate 29. The face gear 1 28 and the face gear 2 30 are meshed. The friction plate 29 is installed inside the support shell 31. The design of the face gear 1 28, the face gear 2 30 and the friction plate 29 facilitates the square rod 32 and the support block 33 to be fixed in position after rotating around the movable cylinder 2 34. The design of the friction plate 29 increases the friction between the face gear 1 28 and the face gear 2 30, thereby avoiding relative rotation between the face gear 1 28 and the face gear 2 30. The face gear 1 28 and the friction plate 29 are installed inside the support shell 31, and the support shell 31 is rotatably connected to the fixed plate 27 through a bearing.

[0034] In particular, two square plates are symmetrically welded on the top of the U-shaped seat 3, and fixed plates 8 are symmetrically installed at the front and rear ends of the hollow block 4 by screws, and a rotating shaft 9 is fixedly installed on the fixed plate 8, and the rotating shaft 9 is rotatably installed inside the square plate through a bearing. The design of the rotating shaft 9 and the square plate is convenient for the hollow block 4 to be rotatably installed inside the U-shaped seat 3. Round rods 10 are welded on the ends of the two fixed plates 8 that are away from each other, and an arc groove is processed on the end of the square plate close to the fixed plate 8, and one end of the round rod 10 extends into the arc groove. The design of the round rod 10 and the arc groove is convenient for limiting the rotation angle of the support rod 17 inside the vertical plane, so as to avoid excessive rotation of the support rod 17 under the action of its own gravity when it is loose, and a gear 11 is installed at the rear end of one of the rotating shafts 9 through a key connection. A rotating shaft 2 13 is rotatably installed inside the U-shaped seat 3 through a bearing, and the rotating shaft 2 13 is located on the left side of the rotating shaft 1 9. A gear 2 12 is installed on the annular side surface of the rotating shaft 2 13 through a key connection, and the gear 1 11 and the gear 2 12 are meshed. This design facilitates the rotation of the rotating shaft 1 9 to drive the gear 11 to rotate, and then drives the rotating shaft 2 13 to rotate through the gear 2 12. A torsion spring 14 is installed on the annular side surface of the rotating shaft 2 13, a limiting block 15 is welded at the front end of the gear 2 12, and a limiting block 2 16 is welded at the bottom end of the U-shaped seat 3. The two ends of the torsion spring 14 extend to the inside of the limiting block 15 and the limiting block 2 16 respectively. The design of the limiting block 15 and the limiting block 2 16 is convenient for limiting the positions of the two ends of the torsion spring 14, so as to facilitate the rotation of the gear 2 12 to torsion The spring 14 is squeezed, and the design of the torsion spring 14 is convenient for the support rod 17 to maintain a horizontal state when it is loose, so as to prevent the support rod 17 from being damaged due to excessive rotation due to its own gravity. A rotating rod 7 is welded to the bottom end of the ball head 5, and the bottom end of the rotating rod 7 extends to the inside of the fixed cylinder 1. A fastening bolt is installed on the annular side of the fixed cylinder 1, and the rotating rod 7 is rotatably installed on the annular side of the fastening bolt. This design facilitates the rotation installation of the ball head 5, and then facilitates the movement of the pushing block 19 to push the ball head 5 to rotate slightly and fit the inner wall of the hollow block 4. A hollow tube 42 is installed at the bottom end of the support block 33 through a threaded connection, and a cylindrical rod 43 is movably installed inside the hollow tube 42. The top of the cylindrical rod 43 fits with the annular side of the moving cylinder 2 34, and the annular surface of the moving cylinder 2 34 The top and the top of the cylindrical rod 43 are both provided with inclined plane 2, and the cylindrical rod 43 is fitted with the movable cylinder 24 through inclined plane 2. The design of inclined plane 2 facilitates the movable cylinder 24 to move the cylindrical rod 43 downward, thereby pushing the cylindrical rod 43 to move downward. A hollow shell 1 44 is welded to the bottom end of the hollow tube 42, and a rotating ball 1 46 is rotatably installed inside the hollow shell 1 44. A hollow shell 2 47 is welded to the bottom end of the rotating ball 1 46, and a rotating ball 2 49 is rotatably installed inside the hollow shell 2 47. This design facilitates the adjustment of the direction of the bottom end of the rotating ball 2 49, thereby increasing the range of motion of the drug output end of the anesthesia machine and improving the practicality of the anesthesia machine. A pressure holding bowl 1 45 is slidably installed inside the hollow shell 1 44, and the pressure holding bowl 1 45 is located on the upper side of the rotating ball 1 46.A pressure holding bowl 48 is slidably installed inside the hollow shell 47, and the pressure holding bowl 48 is located on the upper side of the rotating ball 49. A pressure holding bowl 45 is fixedly installed at the bottom end of the cylindrical rod 43. A connecting rod 50 is slidably installed inside the rotating ball 49, and the bottom end of the connecting rod 50 extends to the inside of the hollow shell 47 and is installed on the top of the pressure holding bowl 48 by screws. The top of the connecting rod 50 fits with the top of the inside of the pressure holding bowl 45. The movement of the cylindrical rod 43 facilitates the movement of the pressure holding bowl 45 to fit with the rotating ball 46, thereby fixing the rotating ball 46 inside the hollow shell 44, and the pressure holding bowl 45 moves. The connecting rod 50 is pushed to move, and the movement of the connecting rod 50 drives the pressing bowl 2 48 to move, and the pressing bowl 2 48 moves to fit with the rotating ball 2 49, thereby fixing the rotating ball 2 49 inside the hollow shell 2 47, thereby improving the fixing effect of the drug output end of the anesthesia machine. Two strip grooves are symmetrically processed inside the bevel gear 2 37, and two strip rods are symmetrically welded on the annular side of the threaded cylinder 35, and the strip rods are slidably installed inside the strip grooves. The design of the strip rods and the strip grooves facilitates relative sliding between the bevel gear 2 37 and the threaded cylinder 35, and at the same time facilitates the rotation of the bevel gear 2 37 to drive the threaded cylinder 35 to rotate.

[0035] Working principle of this embodiment: when the position of the support rod 17 needs to be adjusted, the support rod 17 is rotated in the horizontal direction, and the rotation of the support rod 17 drives the hollow block 4 to rotate horizontally around the ball head 5, thereby causing the rotating cylinder 2 to rotate inside the fixed cylinder 1, thereby achieving the purpose of adjusting the horizontal position of the support rod 17, and the support rod 17 is rotated in the vertical direction, and the rotation of the support rod 17 drives the hollow block 4 to rotate vertically around the ball head 5, and the rotation of the hollow block 4 drives the rotating shaft 9 to rotate through the fixed plate 8, and the rotation of the rotating shaft 9 drives the gear 11 to rotate, and the rotation of the gear 11 drives the gear 2 12 to rotate, and then the rotation of the gear 2 12 squeezes the torsion spring 14, so that the torsion spring 14 generates torque, The torsion force of the torsion spring 14 facilitates the rotation of the rotating rod 7 to a horizontal position, and the rotating ball 1 46 and the rotating ball 2 49 are respectively rotated inside the hollow shell 1 44 and the hollow shell 2 47, thereby changing the direction of the drug output end of the anesthesia machine, thereby improving the use range of the anesthesia machine. When it is necessary to lock the support rod 17 and the drug output end of the anesthesia machine, the motor 38 is started, and the motor 38 drives the bevel gear 1 36 to rotate. Because the bevel gear 1 36 is meshed with the bevel gear 2 37, the rotation of the bevel gear 1 36 drives the bevel gear 2 37 to rotate, and the rotation of the bevel gear 2 37 drives the threaded cylinder 35 to rotate through the strip groove and the strip rod, and the threaded cylinder 35 rotates and moves horizontally along the threaded rod 25, and the threaded cylinder 35 moves horizontally. The movement pushes the movable cylinder 2 34 to move horizontally backward. Because a thrust bearing is installed between the threaded cylinder 35 and the movable cylinder 2 34, the rotation of the threaded cylinder 35 will not drive the movable cylinder 2 34 to rotate. The movable cylinder 2 34 moves backward through the inclined surface 2 to squeeze the cylindrical rod 43, thereby causing the cylindrical rod 43 to move downward. The cylindrical rod 43 moves downward and drives the holding bowl 1 45 to move and fit with the rotating ball 1 46, thereby locking the rotating ball 1 46 inside the hollow shell 1 44. The holding bowl 1 45 moves downward and drives the connecting rod 50 to move downward. The connecting rod 50 moves downward and drives the holding bowl 2 48 to move downward and fit with the rotating ball 2 49, thereby locking the rotating ball 2 49 inside the hollow shell 2 47, thereby The position of the drug output end of the anesthesia machine is fixed, and the moving cylinder 26 is driven to move backward during the backward movement of the moving cylinder 2 34. Because the moving cylinder 26 is processed with a bevel 1 at one end close to the cylindrical block 24, and the bevel 1 fits with the cylindrical block 24, the moving cylinder 26 moves through the bevel 1 to squeeze the cylindrical block 24 to move, and the cylindrical block 24 moves to squeeze the push rod 22 to move, and the push rod 22 moves to drive the push block 19 to move, and the push block 19 moves to fit with the ball head 5, thereby pushing the ball head 5 to drive the rotating rod 7 to rotate around the fastening bolt, so that the ball head 5 moves slightly and fits with the inner wall of the hollow block 4, thereby fixing the hollow block 4 and realizing the function of fixing the position of the support rod 17.

[0036] When it is necessary to rotate and adjust the position of the square rod 32 and the support block 33 on the vertical plane, the support block 33 is rotated around the threaded rod 25. During the rotation of the support block 33, the movable cylinder 2 34 is driven to rotate accordingly, so that the inclined surface 2 on the movable cylinder 2 34 is always in contact with the cylindrical rod 43, so that after the support block 33 rotates, the movement of the movable cylinder 2 34 will push the cylindrical rod 43 to move. The rotation of the support block 33 drives the face gear 2 30 to rotate through the support shell 31. The face gear 2 30 rotates to squeeze the face gear 1 28, so that the face gear 1 28 moves backward. When the face gear 1 28 is moved, the face gear 1 28 moves backward to squeeze the spring 51, so that the spring 51 generates an elastic force. When the face gear 1 28 is realigned with the face gear 2 30 front and back, under the action of the elastic force of the spring 51, the face gear 1 28 moves and meshes with the face gear 2 30 again, thereby fixing the position of the support block 33. The design of the friction plate 29 increases the friction between the face gear 1 28 and the face gear 2 30, thereby preventing the face gear 1 28 and the face gear 2 30 from automatically rotating due to looseness, thereby improving the stability of the support block 33 after rotation adjustment.

[0037] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0038] In the description of this article, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking swing arm with good flexibility, comprising a fixed cylinder (1), a rotating cylinder (2), a U-shaped seat (3), a hollow block (4) and a support rod (17), wherein the rotating cylinder (2) is rotatably mounted on the top of the fixed cylinder (1), the U-shaped seat (3) is fixedly mounted on the annular side surface of the rotating cylinder (2), the hollow block (4) is mounted on the top of the U-shaped seat (3), and the support rod (17) is fixedly mounted on the top of the hollow block (4), characterized in that: A ball head (5) is rotatably mounted inside the hollow block (4), a push block (19) is movably mounted on the right side inside the hollow block (4), a sealing block (18) is mounted on the right end of the hollow block (4), a square block is fixedly mounted on the bottom end of the support rod (17), and a hollow rod (21) is fixedly mounted inside the square block, a push rod (22) is slidably mounted inside the hollow rod (21), the left end of the push rod (22) passes through the sealing block (18) and is fixedly connected to the push block (19), and the left end of the push rod (22) is fixedly mounted on the sealing block (18). A hollow block 2 (23) is fixedly installed on the right side of the bottom end of the support rod (17), and the left end of the hollow block 2 (23) is fixedly installed on the right end of the hollow rod (21). A cylindrical block (24) is slidably installed inside the hollow block 2 (23), and the left end of the cylindrical block (24) is in contact with the right end of the push rod (22). A threaded rod (25) is fixedly installed on the rear end of the hollow block 2 (23), and a moving cylinder 1 (26) and a moving cylinder 2 (34) are slidably installed on the threaded rod (25), and the moving cylinder 2 (34) is fixedly installed on the front end of the moving cylinder 1 (26). The movable cylinder 1 (26) is processed with an inclined surface 1 near one end of the cylindrical block (24), and the inclined surface 1 is in contact with the cylindrical block (24). The outer side of the movable cylinder 2 (34) is installed with a support block (33), and a square rod (32) is fixedly installed on the top of the support block (33). The front end of the square rod (32) is fixedly installed with a support seat 1, and a motor (38) is fixedly installed on the top of the support seat. The bottom end of the motor (38) passes through the support seat 1 and is fixedly installed with a bevel gear 1 (36). The front end of the movable cylinder 2 (34) is installed with a threaded cylinder (35). The front end of the threaded rod (25) passes through the movable cylinder 1 (26) and the movable cylinder 2 (34) and is installed inside the threaded cylinder (35). The front end of the support block (33) is fixedly installed with the support seat 2, and the rear end of the support seat 2 is movably installed with the threaded cylinder (35). The front end of the threaded cylinder (35) passes through the support seat 2 and is fixedly installed with a spline shaft (39). The rear end of the support seat 2 is rotatably installed with the bevel gear 2 (37), and the bevel gear 2 (37) is slidably installed on the annular side surface of the threaded cylinder (35), and the bevel gear 1 (36) is meshed with the bevel gear 2 (37).

2. A self-locking swing arm with good flexibility according to claim 1, characterized in that: A cylinder (41) is rotatably mounted at the front end of the second support seat, a T-shaped round block (40) is movably mounted inside the cylinder (41), a spline groove is provided at the rear end of the T-shaped round block (40), and the cross section of the spline groove is the same as the cross section of the spline shaft (39).

3. A self-locking swing arm with good flexibility according to claim 2, characterized in that: Two square grooves are symmetrically arranged on the annular side surface of the cylinder (41), and two square blocks are symmetrically fixedly installed on the annular side surface of the T-shaped circular block (40), and the square blocks are slidably installed inside the sliding groove.

4. A self-locking swing arm with good flexibility according to claim 1, characterized in that: A fixing plate (27) is fixedly mounted on the front end of the hollow block 2 (23), and a face gear 1 (28) is movably mounted on the front end of the fixing plate (27). The face gear 1 (28) is movably mounted on the annular side surface of the moving cylinder 1 (26). A spring (51) is fixedly mounted on the rear end of the face gear 1 (28), and the rear end of the spring (51) is fixedly mounted on the fixing plate (27). A supporting shell (31) is fixedly mounted on the rear end of the supporting block (33), and a face gear 2 (30) is fixedly mounted inside the supporting shell (31), and the face gear 2 (30) is aligned with the face gear 1 (28) in front and back directions. A friction plate (29) is mounted between the face gear 1 (28) and the face gear 2 (30), and the face gear 1 (28) and the friction plate (29) are mounted inside the supporting shell (31).

5. A self-locking swing arm with good flexibility according to claim 1, characterized in that: Two square plates are symmetrically fixedly installed on the top of the U-shaped seat (3); fixed plates (8) are symmetrically fixedly installed on the front and rear ends of the hollow block (4); a rotating shaft (9) is fixedly installed on the fixed plate (8); the rotating shaft (9) is rotatably installed inside the square plate; a round rod (10) is fixedly installed on one end of the two fixed plates (8) away from each other; an arc groove is opened on one end of the square plate close to the fixed plate (8), and one end of the round rod (10) extends into the arc groove.

6. A self-locking swing arm with good flexibility according to claim 5, characterized in that: A gear 1 (11) is fixedly mounted on the rear end of one of the rotating shafts 1 (9); a rotating shaft 2 (13) is rotatably mounted inside the U-shaped seat (3), and the rotating shaft 2 (13) is located on the left side of the rotating shaft 1 (9); a gear 2 (12) is fixedly mounted on the annular side surface of the rotating shaft 2 (13), and the gear 1 (11) and the gear 2 (12) are meshed; a torsion spring (14) is mounted on the annular side surface of the rotating shaft 2 (13); a limit block 1 (15) is fixedly mounted on the front end of the gear 2 (12); a limit block 2 (16) is fixedly mounted on the bottom end inside the U-shaped seat (3), and two ends of the torsion spring (14) extend to the inside of the limit block 1 (15) and the limit block 2 (16), respectively.

7. A self-locking swing arm with good flexibility according to claim 1, characterized in that: A rotating rod (7) is fixedly mounted on the bottom end of the ball head (5), the bottom end of the rotating rod (7) extends into the interior of the fixed cylinder (1), a fastening bolt is mounted on the annular side surface of the fixed cylinder (1), and the rotating rod (7) is mounted on the annular side surface of the fastening bolt.

8. A self-locking swing arm with good flexibility according to claim 1, characterized in that: A hollow tube (42) is installed at the bottom end of the support block (33), a cylindrical rod (43) is slidably installed inside the hollow tube (42), the top end of the cylindrical rod (43) is fitted with the annular side surface of the movable cylinder (34), the annular surface of the movable cylinder (34) and the top end of the cylindrical rod (43) are both processed with inclined surface 2, and the cylindrical rod (43) and the movable cylinder (34) are fitted with inclined surface 2, a hollow shell (44) is fixedly installed at the bottom end of the hollow tube (42), and a rotating ball (46) is rotatably installed inside the hollow shell (44), a hollow shell (47) is fixedly installed at the bottom end of the rotating ball (46), and the hollow shell (47) is rotated inside. A rotating ball (49) is installed, a holding bowl (45) is slidably installed inside the hollow shell (44), and the holding bowl (45) is located on the upper side of the rotating ball (46), a holding bowl (48) is slidably installed inside the hollow shell (47), and the holding bowl (48) is located on the upper side of the rotating ball (49), the bottom end of the cylindrical rod (43) is fixedly installed with the holding bowl (45), the rotating ball (49) is slidably installed with a connecting rod (50), and the bottom end of the connecting rod (50) extends into the hollow shell (47) and is fixedly installed on the top of the holding bowl (48), and the top end of the connecting rod (50) fits with the top end of the inside of the holding bowl (45).

9. A self-locking swing arm with good flexibility according to claim 1, characterized in that: Two strip grooves are symmetrically arranged inside the second bevel gear (37), and two strip rods are symmetrically fixedly installed on the annular side surface of the threaded cylinder (35), and the strip rods are slidably installed inside the strip grooves.

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