Bone correction traction device

Abstract

The invention relates to the technical field of skeleton traction, in particular to a skeleton correction traction device.The skeleton correction traction device comprises a supporting base and a lying plate fixedly installed on the top face of the supporting base, a sliding frame penetrates through the side face of the supporting base, and a traction plate is fixedly installed at the end, located on the outer side of the supporting base, of the sliding frame; a connecting rod is arranged on the side face of the supporting base and located between the sliding frames in a penetrating mode, reciprocating threads are formed in the outer wall, located on the inner side of the supporting base, of the connecting rod, and a driving assembly corresponding to the connecting rod is arranged on the inner side of the supporting base. Compared with the prior art, by means of cooperative work of the driving motor, the transmission conical roller, the transmission wheel, the threaded ring and the connecting rod, reciprocating traction of legs and waist bones of a user is achieved, by means of the design, the traction efficiency is improved, the flexibility of the traction action is ensured, the traction speed can be conveniently adjusted by adjusting the position of the transmission wheel, and the traction effect is improved. The requirements of different users are met, and traction treatment is more personalized and comfortable.

Description

Technical Field

[0001] The present invention relates to the technical field of skeletal traction, and in particular to a skeletal correction traction device. Background Art

[0002] The skeletal correction traction device utilizes continuous and balanced traction force and counter-traction force to achieve the reduction and fixation of displaced fractures and dislocated joints, and maintain the position after reduction. Its principle is based on the balance of action and reaction forces. By applying traction force through a mechanical device, it counteracts the tension and retraction of soft tissues, enabling the reduction of fractures and dislocations, and at the same time preventing and correcting deformities.

[0003] After retrieval, a Chinese patent with the publication number CN211213750U discloses an orthopedic nursing traction rack, including a load-bearing plate. The upper surface of the load-bearing plate is provided with a first sliding groove, and a first slider adapted to the first sliding groove is clamped inside the first sliding groove. A seat is fixedly connected to the upper surface of the load-bearing plate. A card slot is provided on the right side surface of the seat. A connecting plate is provided on the right side of the seat. The left end of the connecting plate extends into the inside of the card slot, and a first baffle is fixedly connected to the left end of the connecting plate. This orthopedic nursing traction rack plays a role in traction on the patient's waist. By installing the clamping plate in the fixing groove, the patient's legs are fixed, preventing the patient's body from sliding down, increasing the stability of the patient during the traction process. The traction rack has the function of being able to perform traction on both the waist and legs, solving the problem that it can only perform traction on the patient's waist and cannot perform traction on the legs, saving the cost of hospital equipment, and at the same time being able to better treat the patient. However, when this solution is actually used, there are still the following deficiencies:

[0004] For patients whose bones need to be traction-corrected, in traditional traction treatment methods, generally, a reciprocating traction method for the patient's waist and legs is adopted. However, in the actual application process of this traction method, the traction speed is usually fixed. Since the bone conditions, muscle tension levels, and correction requirements of each patient are different, the fixed traction speed often fails to meet the personalized treatment needs of different patients.

[0005] Therefore, the present application provides a skeletal correction traction device. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to propose a skeletal correction traction device to solve the problem that the traction speed cannot be adjusted.

[0007] Based on the above purpose, the present invention provides a bone correction traction device, including a support seat and a lying plate fixedly installed on the top surface of the support seat, the side surface of the support seat is penetrated by a sliding frame, the end of the sliding frame located on the outside of the support seat is fixedly installed with a traction plate, the side surface of the support seat is penetrated by a connecting rod located between the sliding frames, the outer wall of the connecting rod located on the inner side of the support seat is provided with a reciprocating thread, the inner side of the support seat is provided with a driving component corresponding to the connecting rod, the end of the lying plate away from the sliding frame is fixedly installed with a connecting plate, the side of the connecting plate is provided with a pulling plate, and the bottom surface of the connecting plate is provided with a pulling component corresponding to the pulling plate;

[0008] The driving assembly includes a threaded ring threadedly mounted on the outer wall of the connecting rod, a transmission cone roller symmetrically rotatably mounted on the inner wall of the support seat through a bracket, and a driving motor fixedly mounted on the inner wall of the support seat. The threaded ring is rotatably mounted on the inner wall of the support seat through a fixing frame, the output end of the driving motor is fixedly connected to the side of one transmission cone roller, and the end of the other transmission cone roller is transmission-connected to the threaded ring through a driven wheel and a synchronous belt, a transmission wheel is arranged between the two transmission cone rollers, and an adjustment structure for adjusting the position of the transmission wheel is arranged on the inner wall of the support seat.

[0009] Preferably, the adjustment structure includes an adjustment screw penetrating the side of the support seat, a connecting sleeve threadedly mounted on the outer wall of the adjustment screw, and a guide rod fixedly mounted on the inner wall of the support seat, the transmission wheel is rotatably mounted on the outer wall of the connecting sleeve, the outer wall of the guide rod is slidably mounted with a guide ring, and a fixing rod is fixedly mounted between the connecting sleeve and the guide ring.

[0010] Preferably, a rotating plate is fixedly mounted on one end of the adjusting screw located outside the supporting seat, and the two transmission cone rollers are arranged oppositely.

[0011] Preferably, the pulling assembly includes a connecting rack slidably installed on the bottom surface of the connecting plate, a linkage gear rotatably installed on the bottom surface of the connecting plate and meshing with the connecting rack, and a one-way bearing fixedly mounted on the bottom end of the rotating shaft, the end of the connecting rack is fixedly connected to the side of the pulling plate, the outer wall of the one-way bearing is fixedly mounted with an adjusting gear, the bottom surface of the connecting plate is slidably mounted with an adjusting rack meshing with the adjusting gear through a mounting frame, and the bottom surface of the connecting plate is provided with a limiting mechanism adapted to the connecting rack.

[0012] Preferably, the limiting mechanism includes a mounting plate fixedly mounted on the bottom surface of the connecting plate, a pull rod is provided through the side of the mounting plate, a spring is mounted on the pull rod, and the two ends of the spring are respectively fixedly connected to the mounting plate and the pull rod, a plurality of pin blocks distributed in a linear array are fixedly mounted on the side of the connecting rack, and a limiting block is fixedly mounted on the end of the pull rod.

[0013] Preferably, a headrest is fixedly installed on the top surface of the connecting plate, and the cross-sectional shapes of the pin block and the limit block are both right trapezoids.

[0014] Preferably, a connecting frame is fixedly installed at the end of the adjusting rack, and a push handle is fixedly installed at one end of the connecting frame away from the adjusting rack.

[0015] Preferably, a traction rope is arranged on the side surface of the pulling plate, and a cloth clip corresponding to the chin is arranged on the outer wall of the traction rope.

[0016] Preferably, a traction frame is arranged on the top surface of the traction plate, positioning handles are arranged on both side surfaces of one end of the lying plate away from the traction plate, and a connecting mechanism is arranged between the positioning handle and the support seat.

[0017] Preferably, the connecting mechanism includes a guiding sleeve fixedly installed on the side surface of the support seat, a threaded sleeve rotatably installed at the end of the guiding sleeve, and a support screw arranged on the inner wall of the guiding sleeve. The support screw is threadedly connected with the threaded sleeve, and the top end of the support screw is fixedly connected with the bottom surface of the positioning handle. A guiding groove is formed on the inner wall of the guiding sleeve, and a guiding block adapted to the guiding groove is fixedly installed at one end of the support screw located inside the guiding sleeve.

[0018] Advantages of the present invention:

[0019] 1. For this kind of skeletal correction traction device, by setting the traction frame and the driving assembly, through the coordinated work of the driving motor, transmission taper rollers, transmission wheels, threaded rings and connecting rods, the reciprocating traction of the user's leg and lumbar bones is realized. This design not only improves the traction efficiency, but also ensures the flexibility of the traction action. By adjusting the position of the transmission wheel, the traction speed can be conveniently adjusted to meet the needs of different users, making the traction treatment more personalized and comfortable.

[0020] 2. For this kind of skeletal correction traction device, by setting the pulling plate and the pulling assembly, through the ingenious design of components such as the pulling plate, traction rope, adjusting rack, adjusting gear and linkage gear, the precise control of the traction force on the head is realized. The reciprocating push of the push handle can change the position of the pulling plate relative to the headrest, which is convenient to use. At the same time, the design of the limit block and the pin block ensures the position stability of the pulling plate after the sliding is completed, avoiding reverse sliding and improving the safety and effect of the traction treatment.

[0021] 3. For this kind of skeletal correction traction device, by setting the positioning handle and the connecting mechanism, by rotating the threaded sleeve, the support screw can be driven to slide, thereby adjusting the position of the positioning handle. This design not only improves the applicability of the device, but also ensures that the positioning handle can be accurately located under the user's armpit, improving the accuracy and comfort of the traction treatment. At the same time, the design of the guiding block and the guiding groove ensures the stability of the support screw during the sliding process, avoiding shaking and deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the support base of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the drive assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the connecting plate of the present invention;

[0027] Figure 5 It is Figure 4 an enlarged schematic diagram of part A in

[0028] Figure 6 It is a partially sectioned schematic diagram of the guide sleeve of the present invention.

[0029] The labels in the figure are:

[0030] 1, support base; 2, lying board; 3, sliding frame; 4, traction board; 5, traction frame; 6, connecting rod; 71, threaded ring; 72, transmission cone roller; 73, drive motor; 74, transmission wheel; 75, adjusting screw; 76, connecting sleeve; 77, guide rod; 78, guide ring; 79, fixed rod; 8, connecting plate; 9, headrest; 10, pull plate; 111, connecting rack; 112, linkage gear; 113, one-way bearing; 114, adjusting gear; 115, adjusting rack; 116, connecting frame; 117, mounting plate; 118, pull rod; 119, spring; 1110, pin block; 1111, limit block; 12, push handle; 131, guide sleeve; 132, threaded sleeve; 133, support screw; 134, guide groove; 14, positioning handle; 15, traction rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following will further describe the present invention in detail with reference to specific embodiments.

[0032] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0033] As Figures 1 to 6 shown, a skeletal correction traction device includes a support base 1 and a lying board 2 fixedly installed on the top surface of the support base 1. A sliding frame 3 is penetrated through the side surface of the support base 1. A traction board 4 is fixedly installed at one end of the sliding frame 3 located outside the support base 1. A connecting rod 6 is penetrated through the side surface of the support base 1 at a position between the sliding frames 3. A reciprocating thread is provided on the outer wall of the connecting rod 6 located inside the support base 1. A driving assembly corresponding to the connecting rod 6 is arranged inside the support base 1. A connecting plate 8 is fixedly installed at one end of the lying board 2 away from the sliding frame 3. A headrest 9 is fixedly installed on the top surface of the connecting plate 8. A pulling plate 10 is arranged on the side surface of the connecting plate 8. A pulling assembly corresponding to the pulling plate 10 is arranged on the bottom surface of the connecting plate 8. A traction rope 15 is arranged on the side surface of the pulling plate 10. A cloth corresponding to the chin is arranged on the outer wall of the traction rope 15. A traction frame 5 is arranged on the top surface of the traction board 4. Positioning handles 14 are arranged on both side surfaces of one end of the lying board 2 away from the traction board 4;

[0034] The driving assembly includes a threaded ring 71 threadedly sleeved on the outer wall of the connecting rod 6, a transmission cone roller 72 symmetrically rotatably installed on the inner wall of the support base 1 through a bracket, and a driving motor 73 fixedly installed on the inner wall of the support base 1. The two transmission cone rollers 72 are arranged in opposite directions. The threaded ring 71 is rotatably installed on the inner wall of the support base 1 through a fixing frame. The output end of the driving motor 73 is fixedly connected to the side surface of one transmission cone roller 72, and the end of the other transmission cone roller 72 is in transmission connection with the threaded ring 71 through a driven wheel and a synchronous belt. A transmission wheel 74 is arranged between the two transmission cone rollers 72. An adjusting structure for adjusting the position of the transmission wheel 74 is arranged on the inner wall of the support base 1;

[0035] The adjusting structure includes an adjusting screw rod 75 penetratingly arranged on the side surface of the support base 1, a connecting sleeve 76 threadedly sleeved on the outer wall of the adjusting screw rod 75, and a guide rod 77 fixedly installed on the inner wall of the support base 1. The driving wheel 74 is rotatably sleeved on the outer wall of the connecting sleeve 76. A guide ring 78 is slidably sleeved on the outer wall of the guide rod 77. A fixing rod 79 is fixedly installed between the connecting sleeve 76 and the guide ring 78. A rotating plate is fixedly installed at one end of the adjusting screw rod 75 located outside the support base 1.

[0036] During use, the user can first lie on the lying board 2, place the ankle between the traction frame 5 and the traction plate 4, and the armpits of the user can be stuck on the positioning handle 14. The positioning handle 14 can limit the upper body of the user to prevent the upper body from sliding during traction. When in traction, the user can turn on the driving motor 73. When the driving motor 73 is turned on, it can drive a driving bevel roller 72 to rotate. There is a driving wheel 74 between the two driving bevel rollers 72. Therefore, when one driving bevel roller 72 rotates, it can drive the other driving bevel roller 72 to rotate through the driving wheel 74. When the other driving bevel roller 72 rotates, it can drive the threaded ring 71 to rotate through the synchronous belt and the driven wheel. Since the threaded ring 71 is screwed to the end of the connecting rod 6, when the threaded ring 71 rotates, it can drive the connecting rod 6 to slide reciprocally, thereby driving the sliding frame 3, the traction plate 4, and the traction frame 5 to slide reciprocally, realizing the reciprocating traction of the leg and waist bones of the user.

[0037] During the use process, if it is necessary to adjust the traction speed, the adjusting screw rod 75 can be rotated. Since the connecting sleeve 76 is screwed to the adjusting screw rod 75, and the connecting sleeve 76 is slidably connected to the guide rod 77 through the fixing rod 79 and the guide ring 78, when the adjusting screw rod 75 rotates, it can drive the connecting sleeve 76 to slide along the guide rod 77, thereby changing the position of the driving wheel 74 on the connecting sleeve 76 between the two driving bevel rollers 72. Since the two driving bevel rollers 72 are arranged in opposite directions, the outer wall of the driving wheel 74 can always be in contact with the outer walls of the two driving bevel rollers 72 when the position of the driving wheel 74 is adjusted. Therefore, when the position of the driving wheel 74 is adjusted, it can change the rotation speed of the driving bevel roller 72 connected to the threaded ring 71, thereby realizing the adjustment of the traction speed of the connecting rod 6 and the traction plate 4, making it more convenient to use.

[0038] Such as Figure 2 、 Figure 4 、 Figure 5As shown in the figure, the traction assembly includes a connecting rack 111 slidably mounted on the bottom surface of the connecting plate 8, a linkage gear 112 rotatably mounted on the bottom surface of the connecting plate 8 through a rotating shaft and meshing with the connecting rack 111, and a one-way bearing 113 fixedly sleeved on the bottom end of the rotating shaft. The end of the connecting rack 111 is fixedly connected to the side surface of the pulling plate 10. An adjusting gear 114 is fixedly sleeved on the outer wall of the one-way bearing 113. An adjusting rack 115 meshing with the adjusting gear 114 is slidably mounted on the bottom surface of the connecting plate 8 through a mounting bracket. A limiting mechanism adapted to the connecting rack 111 is provided on the bottom surface of the connecting plate 8;

[0039] The limiting mechanism includes a mounting plate 117 fixedly mounted on the bottom surface of the connecting plate 8. A pull rod 118 is penetrated through the side surface of the mounting plate 117. A spring 119 is sleeved on the pull rod 118, and both ends of the spring 119 are fixedly connected to the mounting plate 117 and the pull rod 118 respectively. A plurality of pin blocks 1110 distributed in a linear array are fixedly mounted on the side surface of the connecting rack 111. A limiting block 1111 is fixedly mounted at the end of the pull rod 118. The cross-sectional shapes of the pin blocks 1110 and the limiting block 1111 are both right trapezoids. A connecting frame 116 is fixedly mounted at the end of the adjusting rack 115. A push handle 12 is fixedly mounted at one end of the connecting frame 116 away from the adjusting rack 115;

[0040] The user can also perform head traction on the lying board 2. During use, the traction rope 15 on the side surface of the pulling plate 10 can be fixed to the head through a cloth clip. Subsequently, the push handle 12 can be reciprocally pushed. When the push handle 12 is reciprocally pushed, it can drive the adjusting rack 115 to reciprocally slide along the mounting bracket through the connecting frame 116. The adjusting rack 115 meshes with the adjusting gear 114, and a one-way bearing 113 is provided between the adjusting gear 114 and the rotating shaft. Therefore, when the adjusting gear 114 rotates counterclockwise, it can drive the rotating shaft and the linkage gear 112 to rotate, while when it rotates clockwise, it cannot drive the linkage gear 112 to rotate. When the linkage gear 112 rotates, it can drive the connecting rack 111 meshing with it to slide, thereby changing the position of the pulling plate 10 relative to the headrest 9. During the sliding process of the connecting rack 111, under the action of the inclined surface of the limiting block 1111 and the pin block 1110 facing each other, the connecting rack 111 can directly slide. After the sliding is completed, the vertical parts of the limiting block 1111 and the pin block 1110 are opposite to each other, which can limit the positions of the connecting rack 111 and the pulling plate 10 to prevent the pulling plate 10 from sliding in the reverse direction. When the pulling plate 10 is reset after use, the pull rod 118 can be pulled to separate the limiting block 1111 from the pin block 1110, and then the pulling plate 10 can be pushed back to its original position.

[0041] As Figure 1 、 Figure 6As shown in the figure, a connecting mechanism is provided between the positioning handle 14 and the support base 1; the connecting mechanism includes a guiding sleeve 131 fixedly installed on the side of the support base 1, a threaded sleeve 132 rotatably installed at the end of the guiding sleeve 131, and a support screw 133 arranged on the inner wall of the guiding sleeve 131. The support screw 133 is screwed with the threaded sleeve 132, and the top end of the support screw 133 is fixedly connected to the bottom surface of the positioning handle 14. A guiding groove 134 is formed on the inner wall of the guiding sleeve 131. One end of the support screw 133 located inside the guiding sleeve 131 is fixedly installed with a guiding block adapted to the guiding groove 134;

[0042] In the initial state, different users can adjust the position of the positioning handle 14 before lying on the lying board 2 so that it can be accurately located under the armpits of the users. When adjusting, the threaded sleeve 132 can be rotated. The support screw 133 is screwed with the threaded sleeve 132 and is slidably connected to the inner wall of the guiding sleeve 131 through the guiding block and the guiding groove 134. Therefore, when the threaded sleeve 132 rotates, it can drive the support screw 133 to slide, thereby driving the positioning handle 14 to move to adjust the position of the positioning handle 14.

[0043] In the technical solution provided by the present invention, when in use, the user can first lie on the lying board 2 and place the ankle between the traction frame 5 and the traction plate 4, and the armpits of the user can be stuck on the positioning handle 14. The positioning handle 14 can limit the upper body of the user so that the upper body will not slide during traction. When in traction, the user can turn on the driving motor 73. When the driving motor 73 is turned on, it can drive a transmission cone roller 72 to rotate. A transmission wheel 74 is arranged between the two transmission cone rollers 72. Therefore, when one transmission cone roller 72 rotates, it can drive the other transmission cone roller 72 to rotate through the transmission wheel 74. When the other transmission cone roller 72 rotates, it can drive the threaded ring 71 to rotate through the synchronous belt and the driven wheel. Since the threaded ring 71 is screwed with the end of the connecting rod 6, when the threaded ring 71 rotates, it can drive the connecting rod 6 to reciprocate, thereby driving the sliding frame 3, the traction plate 4 and the traction frame 5 to reciprocate, realizing the reciprocating traction of the leg and waist bones of the user;

[0044] When adjusting the traction speed during use, the adjusting screw rod 75 can be rotated. Since the connecting sleeve 76 is screwed to the adjusting screw rod 75 and the connecting sleeve 76 is slidably connected to the guide rod 77 through the fixing rod 79 and the guide ring 78, when the adjusting screw rod 75 rotates, it can drive the connecting sleeve 76 to slide along the guide rod 77, thereby changing the position of the driving wheel 74 on the connecting sleeve 76 between the two driving tapered rollers 72. Since the two driving tapered rollers 72 are arranged in opposite directions, the outer wall of the driving wheel 74 can always be in contact with the outer walls of the two driving tapered rollers 72 when the position of the driving wheel 74 is adjusted. Therefore, when the position of the driving wheel 74 is adjusted, the rotation speed of the driving tapered roller 72 connected to the threaded ring 71 can be changed, thereby realizing the adjustment of the traction speed of the connecting rod 6 and the traction plate 4, which is more convenient to use;

[0045] The user can also perform head traction on the lying board 2. When in use, the traction rope 15 on the side of the pulling board 10 can be fixed to the head through the card cloth. Subsequently, the push handle 12 can be reciprocally pushed. When the push handle 12 is reciprocally pushed, it can drive the adjusting rack 115 to reciprocally slide along the mounting rack through the connecting frame 116. The adjusting rack 115 meshes with the adjusting gear 114, and a one-way bearing 113 is arranged between the adjusting gear 114 and the rotating shaft. Therefore, when the adjusting gear 114 rotates counterclockwise, it can drive the rotating shaft and the linkage gear 112 to rotate, while it cannot drive the linkage gear 112 to rotate when rotating clockwise. When the linkage gear 112 rotates, it can drive the connecting rack 111 meshing with it to slide, thereby changing the position of the pulling board 10 relative to the headrest 9. During the sliding process of the connecting rack 111, under the action of the inclined surface of the limiting block 1111 opposite to the pin block 1110, the connecting rack 111 can directly slide. After the sliding is completed, the vertical parts of the limiting block 1111 and the pin block 1110 are opposite, which can limit the positions of the connecting rack 111 and the pulling board 10 to prevent the pulling board 10 from sliding in the reverse direction. When the pulling board 10 is reset after use, the pull rod 118 can be pulled to separate the limiting block 1111 from the pin block 1110, and then the pulling board 10 can be pushed back to reset;

[0046] In the initial state, different users can adjust the position of the positioning handle 14 before lying on the lying board 2 so that it can be accurately located under the armpits of the users. When adjusting, the threaded sleeve 132 can be rotated. The support screw rod 133 is screwed to the threaded sleeve 132 and is slidably connected to the inner wall of the guide sleeve 131 through the guide block and the guide groove 134. Therefore, when the threaded sleeve 132 rotates, it can drive the support screw rod 133 to slide, thereby driving the positioning handle 14 to move to adjust the position of the positioning handle 14.

[0047] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0048] Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bone correction traction device, characterized in that: The invention comprises a support seat (1) and a lying plate (2) fixedly mounted on the top surface of the support seat (1), a sliding frame (3) is provided through the side surface of the support seat (1), a traction plate (4) is fixedly mounted on one end of the sliding frame (3) located outside the support seat (1), a connecting rod (6) is provided through the side surface of the support seat (1) at a position between the sliding frames (3), a reciprocating thread is provided on the outer wall of the connecting rod (6) located inside the support seat (1), a driving component corresponding to the connecting rod (6) is provided on the inner side of the support seat (1), a connecting plate (8) is fixedly mounted on one end of the lying plate (2) away from the sliding frame (3), a pulling plate (10) is provided on the side surface of the connecting plate (8), and a pulling component corresponding to the pulling plate (10) is provided on the bottom surface of the connecting plate (8); The driving assembly comprises a threaded ring (71) threadedly mounted on the outer wall of the connecting rod (6), a transmission cone roller (72) symmetrically rotatably mounted on the inner wall of the support seat (1) through a bracket, and a driving motor (73) fixedly mounted on the inner wall of the support seat (1); the threaded ring (71) is rotatably mounted on the inner wall of the support seat (1) through a fixing frame; the output end of the driving motor (73) is fixedly connected to the side of one transmission cone roller (72), and the end of the other transmission cone roller (72) is transmission-connected to the threaded ring (71) through a driven wheel and a synchronous belt; a transmission wheel (74) is arranged between the two transmission cone rollers (72), and an adjustment structure for adjusting the position of the transmission wheel (74) is arranged on the inner wall of the support seat (1).

2. A bone correction traction device according to claim 1, characterized in that: The adjustment structure comprises an adjustment screw (75) penetrating a side surface of the support seat (1), a connecting sleeve (76) threadedly sleeved on the outer wall of the adjustment screw (75), and a guide rod (77) fixedly mounted on the inner wall of the support seat (1); the transmission wheel (74) is rotatably sleeved on the outer wall of the connecting sleeve (76); a guide ring (78) is slidably sleeved on the outer wall of the guide rod (77); and a fixing rod (79) is fixedly mounted between the connecting sleeve (76) and the guide ring (78).

3. A bone correction traction device according to claim 2, characterized in that: A rotating plate is fixedly mounted on one end of the adjusting screw rod (75) located outside the supporting seat (1), and the two transmission cone rollers (72) are arranged opposite to each other.

4. The bone correction traction device according to claim 1, characterized in that: The pulling assembly comprises a connecting rack (111) slidably mounted on the bottom surface of the connecting plate (8), a linkage gear (112) rotatably mounted on the bottom surface of the connecting plate (8) and meshing with the connecting rack (111), and a one-way bearing (113) fixedly sleeved on the bottom end of the rotating shaft, the end of the connecting rack (111) is fixedly connected to the side surface of the pulling plate (10), the outer wall of the one-way bearing (113) is fixedly sleeved with an adjusting gear (114), the bottom surface of the connecting plate (8) is slidably mounted with an adjusting rack (115) meshing with the adjusting gear (114) through a mounting frame, and the bottom surface of the connecting plate (8) is provided with a limiting mechanism adapted to the connecting rack (111).

5. A bone correction traction device according to claim 4, characterized in that: The limiting mechanism comprises a mounting plate (117) fixedly mounted on the bottom surface of the connecting plate (8), a pull rod (118) penetrating the side surface of the mounting plate (117), a spring (119) being mounted on the pull rod (118), and two ends of the spring (119) being respectively fixedly connected to the mounting plate (117) and the pull rod (118), a plurality of pin blocks (1110) distributed in a linear array being fixedly mounted on the side surface of the connecting rack (111), and a limiting block (1111) being fixedly mounted on the end of the pull rod (118).

6. A bone correction traction device according to claim 5, characterized in that: A headrest (9) is fixedly mounted on the top surface of the connecting plate (8), and the cross-sectional shapes of the pin block (1110) and the limit block (1111) are both right-angled trapezoids.

7. The bone correction traction device according to claim 5, characterized in that: A connecting frame (116) is fixedly mounted on the end of the adjusting rack (115), and a push handle (12) is fixedly mounted on one end of the connecting frame (116) away from the adjusting rack (115).

8. The bone correction traction device according to claim 1, characterized in that: A traction rope (15) is provided on the side of the pulling plate (10), and a cap corresponding to the chin is provided on the outer wall of the traction rope (15).

9. The bone correction traction device according to claim 1, characterized in that: A traction frame (5) is provided on the top surface of the traction plate (4), and positioning handles (14) are provided on both side surfaces of the end of the lying plate (2) away from the traction plate (4), and a connecting mechanism is provided between the positioning handle (14) and the support seat (1).

10. The bone correction traction device according to claim 9, characterized in that: The connection mechanism comprises a guide sleeve (131) fixedly mounted on the side of the support seat (1), a threaded sleeve (132) rotatably mounted on the end of the guide sleeve (131), and a support screw (133) arranged on the inner wall of the guide sleeve (131); the support screw (133) is threadedly connected to the threaded sleeve (132), and the top end of the support screw (133) is fixedly connected to the bottom surface of the positioning handle (14); the inner wall of the guide sleeve (131) is provided with a guide groove (134); and a guide block adapted to the guide groove (134) is fixedly mounted on one end of the support screw (133) located on the inner side of the guide sleeve (131).

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