CN212730095U - Ratchet clamping type orthopedic traction structure applied to traction frame and traction frame - Google Patents

Abstract

The utility model relates to the field of medical equipment, concretely relates to use ratchet screens formula orthopedics traction structure and traction frame on traction frame, include: the ratchet wheel fixing sleeve, the ratchet wheel rotating sleeve rod, the locking sleeve, the spring, the pulley frame, the pulley, the traction rope, the weight and the traction body. The utility model discloses an use ratchet screens formula orthopedics traction structure and traction frame on traction frame adopts the fixed cover of ratchet and the inclination of ratchet rotation loop bar through ratchet face interlock control dwang. The ratchet fixed sheathe in the ratchet rotates loop bar that the cover was established and has axial displacement's stroke, can control interlock and two states of the ratchet face that breaks away from the fixed cover of ratchet to realized that the ratchet rotates the loop bar and switched over on mutual screens is fixed and relative free rotation two states, guaranteed the functional of this application. The locking sleeve is connected to the outer portion of the threaded sleeve shaft structure of the ratchet fixing sleeve through threads, limitation of axial stroke of the ratchet rotating sleeve rod is achieved through threaded locking, operation is simple, and the effect is obvious.

Description

Ratchet clamping type orthopedic traction structure applied to traction frame and traction frame

Technical Field

The utility model relates to the field of medical equipment, particularly, relate to a ratchet screens formula orthopedics that uses on traction frame pulls structure and traction frame.

Background

The traction technique is a commonly used treatment method in orthopedics department, and is a treatment method for relieving muscle tension and strong contraction, reducing fracture and dislocation, preventing and correcting soft tissue contracture, and performing preoperative tissue release and postoperative brake on certain diseases by using the weight of suspension as traction force and the body weight as counter traction force through a traction device. Bone traction is an important traction technique, also called direct traction, and is characterized in that a steel needle or a traction forceps is used to penetrate through bone, so that traction force directly passes through bones to reach an injured part, and the functions of restoration, fixation and rest are achieved.

When medical personnel in hospitals carry out bone traction on patients with lower limb fracture, a fixed traction frame is sleeved on a sickbed frame at the tail part of a sickbed, a fixed pulley sleeve fixed through a top pin is arranged on the traction frame, a traction stay cord is wound around the fixed pulley, a weight is fixed at the tail end of the traction stay cord and naturally hangs down by means of gravity, and traction force is provided for the patients through the traction stay cord. But the following defects are found in clinical use at present:

1. the fixed pulley sleeve is turned over on the round tube type traction frame cross rod with a smooth surface simply through the ejector pin, the fixation on the angle is unstable, the contact area of the ejector pin is too small when the ejector pin is propped on the surface of the round tube type traction frame cross rod, the ejector pin is in point-to-point contact, the fixed pulley sleeve is very easy to loosen and fall off when the fixed pulley sleeve is turned over on the traction frame cross rod for angle positioning, and if the fixed pulley sleeve is fiercely loosened and easily pulled to form dislocation on the traction position of a patient, the fixed pulley sleeve has great hidden danger on the safety of the patient.

2. The existing lower limb tractor is convenient for a patient to pull the lower limbs in the lateral direction of a sickbed, the tractor is also fixed on the two ends of the cross rod of the traction frame by the telescopic pipes, the structure is overstaffed, the counterweight of the traction frame is overlarge, the traction process is very complicated when the traction frame is replaced on the tractor of the telescopic pipes, and the sliding sleeve of the fixed pulley is very easy to loosen and take off in the operation process.

3. The technical scheme structure of pulley yoke fixed mode non-point contact is too complicated loaded down with trivial details among the current tractor, and the structure material is too much, and the counter weight is overweight, and medical staff very labouring when changing the traction frame, the condition of exhausting appears easily, leads to changing efficiency to hang down.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a ratchet screens formula orthopedics traction structure and traction frame of using on the traction frame that stable in structure is reliable.

The utility model aims at realizing through the following technical scheme:

on the one hand, the utility model provides a pair of ratchet screens formula orthopedics that uses on traction frame pulls the structure is provided with the slip pipe on the traction frame, and orthopedics pulls the structure setting on the slip pipe, and orthopedics pulls the structure and includes: the ratchet wheel fixing sleeve, the ratchet wheel rotating sleeve rod, the locking sleeve, the spring, the pulley frame, the pulley, the traction rope, the weight and the traction body; the ratchet fixing sleeve is sleeved on the sliding pipe and comprises a ratchet sleeve structure I and a threaded sleeve shaft structure which are connected, a ratchet rotating sleeve rod is sleeved on the ratchet sleeve structure I, a circular groove I is formed in one side surface of the ratchet sleeve structure I, which faces the ratchet rotating sleeve rod, the peripheral portion of the ratchet sleeve structure I, which is located in the groove I, is a circumferential end edge I, unidirectional ratchets I are uniformly distributed on the circumferential end edge I, and the direction of the unidirectional ratchets I is upward;

the ratchet wheel rotating sleeve rod comprises a ratchet wheel sleeve structure II and a rotating rod which are connected, a circle-shaped groove II is formed in one side surface, facing the ratchet wheel sleeve structure I, of the ratchet wheel sleeve structure II, the peripheral portion, located on the groove II, of the ratchet wheel sleeve structure II is a circumferential end edge II, one-way ratchets II are uniformly distributed on the circumferential end edge II, and the direction of the one-way ratchets II is upward; a pulley yoke is hinged on the rotating rod, and the pulley is arranged on the pulley yoke; the traction rope is arranged on the pulley in a penetrating way, one end of the traction rope is connected with the weight, and the other end of the traction rope is connected with a traction body fixed at the ankle of a patient to be pulled;

the locking sleeve is sleeved on the threaded sleeve shaft structure in a threaded mode, the spring is sleeved on the ratchet sleeve structure I and contained in the groove I and the groove II, the spring is in a compression state all the time, and the one-way ratchet II on the ratchet sleeve structure II under the pushing of the locking sleeve is meshed with the one-way ratchet I to limit the height of the rotating rod.

Furthermore, the ratchet wheel fixing sleeve comprises a sleeve shaft structure I, a ratchet wheel sleeve structure I, a sleeve shaft structure II and a threaded sleeve shaft structure which are sequentially and integrally arranged in the axis direction of the sliding pipe, and the ratchet wheel rotating sleeve rod is sleeved on the sleeve shaft structure II.

Furthermore, a fixing pin hole is formed in the sleeve shaft structure I in a way of going towards the axis direction of the sliding pipe, and a fixing pin is installed on the fixing pin hole.

Furthermore, the outer diameter of the threaded sleeve shaft structure is smaller than that of the sleeve shaft structure II, and a step is formed at the joint of the threaded sleeve shaft structure and the sleeve shaft structure II.

Furthermore, a double-line external thread structure is arranged on the outer circumferential surface of the threaded sleeve shaft structure, and a double-line internal thread structure is arranged on the inner wall of the locking sleeve.

Further, the traction body comprises a traction bow.

Furthermore, a rotating handle is arranged on the locking sleeve.

On the other hand, the utility model provides a pair of traction frame, include the ratchet screens formula orthopedics traction structure of using on traction frame as above arbitrary.

Further, the sliding pipe is a square pipe.

Further, the traction frame includes: the hospital bed comprises two upright posts vertically fixed in a sleeved mode at the tail of a hospital bed, traction frame vertical cylindrical columns sleeved on the upright posts, a plurality of horizontal traction frame cross rods which are vertically distributed and fixedly connected between the two traction frame vertical cylindrical columns, square pipe sleeves respectively sleeved on the two traction frame vertical cylindrical columns, and square pipes synchronously sleeved on the two square pipe sleeves; the both ends of square pipe are opened there is the square hole passageway, and the square hole passageway at both ends is inside all to be equipped with flexible side's pipe, and orthopedics pulls the structure setting and manages with flexible side at square pipe.

The utility model discloses an use ratchet screens formula orthopedics traction structure and traction frame on traction frame adopts the fixed cover of ratchet and the inclination of ratchet rotation loop bar through ratchet face interlock control dwang. The ratchet fixed sheathe in the ratchet rotates loop bar that the cover was established and has axial displacement's stroke, can control interlock and two states of the ratchet face that breaks away from the fixed cover of ratchet to realized that the ratchet rotates the loop bar and switched over on mutual screens is fixed and relative free rotation two states, guaranteed the functional of this application. The locking sleeve is connected to the outer portion of the threaded sleeve shaft structure of the ratchet fixing sleeve through threads, limitation of axial stroke of the ratchet rotating sleeve rod is achieved through threaded locking, operation is simple, and the effect is obvious. Meanwhile, the springs in a compressed state are arranged in the ratchet fixing sleeve and the ratchet rotating sleeve rod, and the lateral jacking force applied to the locking sleeve by the ratchet rotating sleeve rod can ensure that the locking sleeve locks the ratchet rotating sleeve rod in a threaded sleeved connection relationship and cannot be loosened, so that the safety is further ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a structural diagram of a middle traction frame of the present invention;

FIG. 2 is a block diagram of portion A of the orthopedic distraction structure of FIG. 1;

fig. 3 is a cross-sectional view of the orthopedic traction structure of the present invention;

fig. 4 is an exploded view of the traction structure for orthopedics department of the present invention;

wherein the reference numerals are: 1. a ratchet wheel fixing sleeve; 2. the ratchet wheel rotates the loop bar; 3. a locking sleeve; 4. a spring; 5. a pulley yoke; 6. a pulley; 7. a hauling rope; 8. a weight; 9. a traction body; 10. a ratchet sleeve structure I; 11. a threaded sleeve shaft structure; 12. a ratchet sleeve structure II; 13. rotating the rod; 14. a sleeve shaft structure I; 15. a sleeve shaft structure II; 16. a fixing pin hole; 17. a fixing pin; 18. rotating the handle; 19. a square tube; 20. a traction frame upright cylinder column; 21. A traction frame cross bar; 22. a square pipe sleeve; 23. a telescopic square tube; 24. and (4) a terminal.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 to 4, the utility model discloses use ratchet screens formula orthopedics traction structure on traction frame of embodiment is provided with the slip tube on the traction frame, and orthopedics traction structure sets up on the slip tube, and orthopedics traction structure includes: the device comprises a ratchet wheel fixing sleeve 1, a ratchet wheel rotating sleeve rod 2, a locking sleeve 3, a spring 4, a pulley frame 5, a pulley 6, a traction rope 7, a weight 8 and a traction body 9; the ratchet fixing sleeve 1 is sleeved on the sliding pipe, the ratchet fixing sleeve 1 comprises a ratchet sleeve structure I10 and a threaded sleeve shaft structure 11 which are connected, a ratchet rotating sleeve rod 2 is sleeved on the ratchet sleeve structure I10, a circular groove I is formed in one side surface of the ratchet sleeve structure I10, which faces the ratchet rotating sleeve rod 2, the peripheral portion of the ratchet sleeve structure I10, which is located on the groove I, is a circumferential end edge I, unidirectional ratchets I are uniformly distributed on the circumferential end edge I, and the direction of the unidirectional ratchets I is upward;

the ratchet wheel rotating loop bar 2 comprises a ratchet wheel sleeve structure II 12 and a rotating bar 13 which are connected, a circle-shaped groove II is formed in one side surface, facing the ratchet wheel sleeve structure I10, of the ratchet wheel sleeve structure II 12, the peripheral portion, located in the groove II, of the ratchet wheel sleeve structure II 12 is a circumferential end edge II, one-way ratchet teeth II are evenly distributed on the circumferential end edge II, and the direction of the one-way ratchet teeth II is upward; a pulley yoke 5 is hinged on the rotating rod 13, and a pulley 6 is arranged on the pulley yoke 5; the traction rope 7 is arranged on the pulley 6 in a penetrating way, one end of the traction rope is connected with the weight 8, and the other end of the traction rope is connected with a traction body 9 which is used for being fixed at the ankle of a patient to be dragged;

the locking sleeve 3 is sleeved on the threaded sleeve shaft structure 11 in a threaded manner, the spring 4 is sleeved on the ratchet sleeve structure I10 and is contained in the groove I and the groove II, the spring 4 is always in a compression state, and the one-way ratchet II on the ratchet sleeve structure II 12 under the pushing of the locking sleeve 3 is meshed with the one-way ratchet I to limit the height of the rotating rod 13.

The utility model discloses an use ratchet screens formula orthopedics traction structure on traction frame adopts the fixed cover of ratchet 1 and the inclination of ratchet rotation loop bar 2 through ratchet face interlock control dwang 13. The ratchet rotating loop bar 2 that the cover was established on the fixed cover of ratchet 1 has axial displacement's stroke, can control interlock and two states of the ratchet face that breaks away from the fixed cover of ratchet 1 to realized that ratchet rotating loop bar 2 switches on fixed and relative free rotation two states of screens each other, guaranteed the functional of this application. The locking sleeve 3 is connected to the outer portion of the threaded sleeve shaft structure 11 of the ratchet fixing sleeve 1 through threads, limitation of axial stroke of the ratchet rotating sleeve rod 2 is achieved through thread locking, operation is simple, and the effect is obvious. Simultaneously fixed cover 1 at the ratchet and ratchet rotate the inside spring 4 that sets up compression state of loop bar 2, through the side direction jacking power that ratchet rotated loop bar 2 and applyed locking sleeve 3, can guarantee on the connection that the screw thread cup jointed that locking sleeve 3 locks can not take place the pine to take place to take off ratchet rotates loop bar 2, further assurance the security.

Preferably, the ratchet fixing sleeve 1 comprises a sleeve shaft structure I14, a ratchet sleeve structure I10, a sleeve shaft structure II 15 and a thread sleeve shaft structure 11 which are sequentially and integrally arranged along the axial direction of the sliding pipe, and the ratchet rotating sleeve rod 2 is sleeved on the sleeve shaft structure II 15.

The ratchet wheel fixing sleeve 1 comprises a sleeve shaft structure I14, a ratchet wheel sleeve structure I10, a sleeve shaft structure II 15 and a thread sleeve shaft structure 11 which are sequentially and integrally fixed along the axial direction of a square tube 19. Wherein the external diameter of ratchet cover structure I10 is the biggest, and ratchet cover structure I10 is gone up to be provided with the circle shape recess of certain degree of depth towards a side of ratchet rotation loop bar 2, and the internal diameter of circle shape recess is less than the external diameter of ratchet cover structure I10, guarantees to keep the circumference end limit of certain thickness between the external diameter of ratchet cover structure I10 and the internal diameter of recess, designs the ratchet that the circumference was evenly arranged on this circumference end limit, and this ratchet is one-way ratchet, has one-way limiting displacement to circumference ratchet cover structure II on the ratchet rotation loop bar 2 rather than interlock.

The periphery of a sleeve shaft structure II 15 on the inner side of the ratchet sleeve structure is sleeved with a ratchet rotating rod 13, the ratchet rotating sleeve rod 2 is mainly formed by fixedly connecting a ratchet sleeve structure II 12 and the rotating rod 13 into a whole, meanwhile, the ratchet sleeve structure II 12 is basically consistent with a ratchet sleeve structure I10 of the ratchet fixing sleeve 1, ratchet structures and groove structures which are circumferentially distributed are designed, the ratchet surface of the ratchet rotating sleeve rod 2 is opposite to the ratchet surface of the ratchet fixing sleeve 1 in direction, and the two ratchet sleeve structures can be mutually meshed through ratchets. And because the ratchets in the technical scheme are all unidirectional ratchets, the ratchet wheel rotating sleeve rod 2 can only rotate unidirectionally relative to the ratchet wheel fixing sleeve 1.

Preferably, the sleeve shaft structure I14 is provided with a fixing pin hole 16 which is opened towards the axial direction of the sliding pipe, and a fixing pin 17 is arranged on the fixing pin hole 16.

The sleeve shaft structures on two sides of the ratchet sleeve structure I are optical axis structures, a fixing pin hole 16 is formed in the sleeve shaft structure I14 on the outer side in the axial direction, and a fixing pin 17 is inserted through the fixing pin hole 16, so that the ratchet fixing sleeve 1 and the square tube 19 can be kept in an axially fixed state.

Preferably, the outer diameter of the threaded sleeve shaft structure 11 is smaller than that of the sleeve shaft structure II 15, and a step is formed at the joint of the threaded sleeve shaft structure 11 and the sleeve shaft structure II 15.

The outer diameter of the threaded sleeve shaft structure 11 is smaller than that of the sleeve shaft structure II 15, so that a step is formed at the joint of the threaded sleeve shaft structure 11 and the sleeve shaft structure II 15.

Preferably, the outer circumferential surface of the threaded sleeve shaft structure 11 is provided with a double-thread outer thread structure, and the inner wall of the locking sleeve 3 is provided with a double-thread inner thread structure.

The outer circumference of the threaded sleeve shaft structure 11 is provided with a double-thread outer thread structure. The periphery of a threaded sleeve shaft structure 11 of the ratchet wheel fixing sleeve 1 is sleeved with a locking sleeve 3, and the inner wall of the locking sleeve 3 is provided with a double-line internal thread structure matched with the periphery of the threaded sleeve shaft structure 11 for threaded connection.

Preferably, the traction body 9 comprises a traction bow.

The sleeve shaft structure II 15 at the inner side of the ratchet fixing sleeve 1 is provided with enough length along the axial direction to enable the ratchet rotating sleeve rod 2 to slide towards the inner side direction, so that the ratchet surface can be separated from the ratchet surface of the ratchet fixing sleeve 1. Perpendicular fixedly connected with dwang 13 structure on the ratchet cover structure II 12 circumference side of ratchet rotation loop bar 2, dwang 13 structure is whole to be long straight pole and the end 24 of wide in the design of outer end department, it has pulley yoke 5 to articulate in 24 below of end of dwang 13 structure, pulley yoke 5 inside is provided with can be gliding pulley 6 freely, 6 department has haulage rope 7 at the pulley, 7 one end of haulage rope is connected with weight 8, the other end is connected with traction body 9 such as traction bow, this traction body 9 such as traction bow is fixed in patient ankle department that needs traction, this traction body 9 such as traction bow is prior art, do not do the repeated description here. The spring 4 is sleeved in the groove area between the ratchet wheel fixing sleeve 1 and the ratchet wheel rotating sleeve rod 2, and the spring 4 is always in a compressed state.

Preferably, the locking sleeve 3 is provided with a turning handle 18.

The outer wall of one side of the locking sleeve 3 is fixedly provided with an extended rotating handle 18, the rotating handle 18 is controlled to control the locking sleeve 3 to axially move on the threaded sleeve shaft structure 11, so that the end face of the locking sleeve 3 tightly pushes the end face of the ratchet rotating sleeve rod 2, meanwhile, the spring 4 is in a compression state, the jacking force of the spring 4 is applied to the locking sleeve 3 through the ratchet rotating sleeve rod 2, the locking state of the locking sleeve 3 in threaded connection is matched with the lateral force, and the locking sleeve 3 can be always in a stable locking state to ensure the stability of the structure.

Example 2

As shown in fig. 1 to 4, the utility model provides a traction frame, which comprises a ratchet clamping type orthopedic traction structure applied on the traction frame.

The utility model discloses a traction frame adopts the fixed cover of ratchet 1 and the inclination of ratchet rotation loop bar 2 through ratchet face interlock control dwang 13. The ratchet rotating loop bar 2 that the cover was established on the fixed cover of ratchet 1 has axial displacement's stroke, can control interlock and two states of the ratchet face that breaks away from the fixed cover of ratchet 1 to realized that ratchet rotating loop bar 2 switches on fixed and relative free rotation two states of screens each other, guaranteed the functional of this application. The locking sleeve 3 is connected to the outer portion of the threaded sleeve shaft structure 11 of the ratchet fixing sleeve 1 through threads, limitation of axial stroke of the ratchet rotating sleeve rod 2 is achieved through thread locking, operation is simple, and the effect is obvious. Simultaneously fixed cover 1 at the ratchet and ratchet rotate the inside spring 4 that sets up compression state of loop bar 2, through the side direction jacking power that ratchet rotated loop bar 2 and applyed locking sleeve 3, can guarantee on the connection that the screw thread cup jointed that locking sleeve 3 locks can not take place the pine to take place to take off ratchet rotates loop bar 2, further assurance the security.

Preferably, the sliding tube is a square tube 19.

The traction structure mainly comprises a ratchet wheel fixing sleeve 1, a ratchet wheel rotating sleeve rod 2, a locking sleeve 3, a pulley frame 5, a pulley 6, a traction rope 7 and a weight 8. The ratchet wheel fixing sleeve 1 is sleeved on the periphery of the square tube 19, and the outer section of the square tube 19 is rectangular, so that the ratchet wheel fixing sleeve 1 cannot rotate relative to the square tube 19.

Preferably, the traction frame comprises: the hospital bed comprises two upright posts vertically fixed in a sleeved mode at the tail of a hospital bed, traction frame vertical barrel posts 20 sleeved on the upright posts, a plurality of horizontal traction frame cross rods 21 which are vertically distributed and fixedly connected between the two traction frame vertical barrel posts 20, square pipe sleeves 22 respectively sleeved on the two traction frame vertical barrel posts 20, and square pipes 19 synchronously sleeved on the two square pipe sleeves 22; square hole channels are formed in two ends of the square tube 19, telescopic square tubes 23 are sleeved inside the square hole channels at the two ends, and the orthopedic traction structure is arranged on the square tube 19 and the telescopic square tubes 23.

The traction frame is mainly used for traction of lower limbs of patients with lower limb fracture. The traction frame is sleeved on a vertical fixed upright post (not shown in the figure) at the tail of a sickbed, and the upright posts are respectively vertically fixed at the left and the right of the tail of the sickbed. A plurality of horizontal traction frame cross rods 21 are distributed and fixedly connected between the two traction frame upright posts 20 sleeved on the upright posts up and down to form a complete traction frame. The two traction frame upright cylinder columns 20 of the traction frame are respectively sleeved with square pipe sleeves 22, and the two square pipe sleeves 22 are synchronously sleeved with a horizontal square pipe 19. Both ends of the square tube 19 are internally provided with square hole channels. Inside all the cover of square hole passageway is equipped with flexible square pipe 23. The left side and the right side of the square pipe 19 are respectively sleeved with a traction structure, and meanwhile, the two telescopic square pipes 23 are also sleeved with a traction structure.

When needs carry out traction treatment to patient's low limbs through this technical scheme's traction frame, will pull the structure and move to suitable horizontal transverse position on square pipe 19, will pull the structure through fixed pin 17 and for the square pipe 19 relative fixity of position of traction frame, then it is fixed to patient's ankle department with traction body 9 such as the traction bow of haulage rope 7 rear end. At this time, the locking sleeve 3 and the ratchet wheel rotating sleeve rod 2 are in an unlocked state on the threaded sleeve shaft structure 11, and the ratchet wheel rotating sleeve rod 2 is supported in the inward direction under the supporting action of the spring 4, so that the ratchet surface of the ratchet wheel rotating sleeve rod 2 and the ratchet surface of the ratchet wheel fixing sleeve 1 are separated from each other. The angle of the inclined upward inclination of the rotating lever 13 is adjusted by rotating the rotating lever 13 structure of the ratchet rotating sleeve 2 so that the pulley 6 pulls the ankle of the patient to a proper height with respect to the traction rope 7.

After the angle adjustment of the rotating rod 13 structure of the ratchet wheel rotating loop bar 2 is completed, the rotating locking sleeve 3 is rotated to push the ratchet wheel rotating loop bar 2 to the outer side direction until the ratchet surface of the ratchet wheel rotating loop bar 2 is meshed with the ratchet surface of the ratchet wheel fixing sleeve 1 to be locked, and the rotating rod 13 structure of the ratchet wheel rotating loop bar 2 has a fixed clamping effect in the downward rotating direction due to the ratchet structure being a one-way ratchet, so that the traction frame is in a stable state in the traction process. When the lifting height of the lower limbs of a patient needs to be adjusted in the traction process, the locking sleeve 3 is rotated reversely, so that the ratchet wheel rotating sleeve rod 2 and the locking sleeve 3 are in a non-locking state, then the structure inclination angle of the rotating rod 13 of the ratchet wheel rotating sleeve rod 2 is adjusted according to the operation, and the ratchet wheel rotating sleeve rod 2 is locked and fixed through the locking sleeve 3 again.

The utility model discloses an innovation technical point and beneficial effect lie in at least:

1. the inclination angle of the rotating rod 13 is controlled by the engagement of the ratchet wheel fixing sleeve 1 and the ratchet wheel rotating sleeve rod 2 through the ratchet tooth surface. Compare present clinical traditional tractor that uses, fix a position through the locating pin locking to the round cover of cover on the traction frame pipe, the inclination who comes control round cover pulley frame 5, the mutual interlock of ratchet is more stable among this technical scheme, and the locating pin is locking contact position when locking the pipe to the pipe, locating pin locking contact is point-to-point contact because traction frame pipe outer wall is glossy circular arc curved surface, it is very unstable, the fixed very easy failure of angle under the pulling effect of weight 8 and patient's low limbs, if lead to taking off with the round cover pine of pulley yoke 5 fixed at the traction in-process, then can lead to pulley yoke 5 to swing rapidly under the pulling of weight 8 and patient's low limbs, cause further injury to the patient. The mutual interlock of the unidirectional ratchet of circumference is the face-to-face contact among this technical scheme, replaces the pipe into square pipe 19 simultaneously and has guaranteed that the angle between fixed cover 1 of ratchet and the square pipe 19 is in fixed state all the time, stable in structure, easy operation, factor of safety greatly improves during the use.

2. The ratchet rotating loop bar 2 that the cover was established on the sleeve shaft structure II 15 of the fixed cover of ratchet 1 has axial displacement's stroke, can control interlock and two states of the ratchet face that breaks away from the fixed cover of ratchet 1 to realized that ratchet rotating loop bar 2 switches on mutual screens is fixed and relative free rotation two states, guaranteed the functional of this application.

3. The locking sleeve 3 is connected to the outer portion of the threaded sleeve shaft structure 11 of the ratchet fixing sleeve 1 through threads, limitation of axial stroke of the ratchet rotating sleeve rod 2 is achieved through thread locking, operation is simple, and the effect is obvious. Simultaneously fixed cover 1 at the ratchet and ratchet rotate the inside spring 4 that sets up compression state of loop bar 2, through the side direction jacking power that ratchet rotated loop bar 2 and applyed locking sleeve 3, can guarantee on the connection that the screw thread cup jointed that locking sleeve 3 locks can not take place the pine to take place to take off ratchet rotates loop bar 2, further assurance the security.

4. On the basis of guaranteeing that pulley yoke 5 can not drop, simple structure, the few counter weight of material is light, and the medical staff of very being convenient for changes the traction frame.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides an use ratchet screens formula orthopedics traction structure on traction frame, the last slip tube that is provided with of traction frame, orthopedics traction structure sets up on the slip tube, its characterized in that, orthopedics traction structure includes: the ratchet wheel fixing sleeve, the ratchet wheel rotating sleeve rod, the locking sleeve, the spring, the pulley frame, the pulley, the traction rope, the weight and the traction body; the ratchet wheel fixing sleeve is sleeved on the sliding pipe and comprises a ratchet wheel sleeve structure I and a threaded sleeve shaft structure which are connected, a ratchet wheel rotating sleeve rod is sleeved on the ratchet wheel sleeve structure I, a circular groove I is formed in one side surface of the ratchet wheel sleeve structure I, which faces the ratchet wheel rotating sleeve rod, the peripheral portion of the ratchet wheel sleeve structure I, which is located on the groove I, is a circumferential end edge I, unidirectional ratchet teeth I are uniformly distributed on the circumferential end edge I, and the direction of the unidirectional ratchet teeth I is upward;

the ratchet wheel rotating loop bar comprises a ratchet wheel sleeve structure II and a rotating bar which are connected, a circle-shaped groove II is formed in one side surface of the ratchet wheel sleeve structure II facing to the ratchet wheel sleeve structure I, the peripheral portion of the ratchet wheel sleeve structure II located in the groove II is a circumferential end edge II, one-way ratchets II are uniformly distributed on the circumferential end edge II, and the direction of the one-way ratchets II is upward; the pulley yoke is hinged to the rotating rod, and the pulleys are arranged on the pulley yoke; the traction rope is arranged on the pulley in a penetrating mode, one end of the traction rope is connected with the weight, and the other end of the traction rope is connected with the traction body which is used for being fixed at the ankle of a patient to be pulled;

the locking sleeve threaded sleeve is arranged on the threaded sleeve shaft structure, the spring sleeve is arranged on the ratchet sleeve structure I and is contained in the groove I and the groove II, the spring is always in a compression state, the ratchet sleeve structure II is arranged on the locking sleeve under the pushing effect, the one-way ratchet II is meshed with the one-way ratchet I and is limited to the rotating rod in height.

2. The ratchet clamping type orthopedic traction structure applied to a traction frame as claimed in claim 1, wherein said ratchet fixing sleeve comprises a sleeve shaft structure i, a ratchet sleeve structure i, a sleeve shaft structure ii, and a threaded sleeve shaft structure, which are integrally disposed in sequence along the axial direction of said sliding tube, and said ratchet rotating sleeve rod is sleeved on said sleeve shaft structure ii.

3. The ratchet clamping type orthopedic traction structure applied to the traction frame as claimed in claim 2, wherein the sleeve shaft structure i is opened with a fixing pin hole towards the axial direction of the sliding tube, and the fixing pin hole is installed with a fixing pin.

4. The ratchet clamping type orthopedic traction structure applied to the traction frame as claimed in claim 2, wherein the external diameter of the threaded sleeve shaft structure is smaller than that of the sleeve shaft structure II, and a step is formed at the connection part of the threaded sleeve shaft structure and the sleeve shaft structure II.

5. The ratchet clamping type orthopedic traction structure applied to a traction frame as claimed in claim 1, wherein a double-thread external thread structure is provided on the outer circumferential surface of the threaded sleeve shaft structure, and a double-thread internal thread structure is provided on the inner wall of the locking sleeve.

6. The ratchet clamping type orthopedic traction structure applied to a traction frame as claimed in claim 1, wherein the traction body comprises a traction bow.

7. The ratchet clamping type orthopedic traction structure applied to the traction frame as claimed in claim 1, wherein a rotation handle is provided on the locking sleeve.

8. A traction frame, characterized in that, it comprises the ratchet clamping type orthopaedics traction structure applied on the traction frame of any one of claims 1 to 7.

9. The hitch frame of claim 8, wherein the sliding tube is a square tube.

10. The hitch frame of claim 9, wherein the hitch frame comprises: the device comprises two upright posts vertically fixed at the tail of a sickbed in a sleeved mode, traction frame vertical barrel posts sleeved on the upright posts, a plurality of horizontal traction frame cross rods which are vertically distributed and fixedly connected between the two traction frame vertical barrel posts, square pipe sleeves respectively sleeved on the two traction frame vertical barrel posts, and square pipes synchronously sleeved on the two square pipe sleeves; the both ends of square pipe are opened there is the square hole passageway, both ends the inside flexible side of all overlapping of square hole passageway is equipped with pipe, orthopedics pulls the structure setting and is in square pipe with flexible side is gone up.

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