阅读说明：本技术 一种c臂机旋转扫描运动电缆自动张紧装置 (Automatic cable tensioning device for rotary scanning movement of C-arm machine ) 是由 程希元 廖炎鹏 凌小娣 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种C臂机旋转扫描运动电缆自动张紧装置,包括底板和张紧箱,所述张紧箱固定安装在所述底板的顶部,所述张紧箱的两侧均固定安装有导向箱,两个所述导向箱均为两侧开口结构,所述张紧箱内侧顶部的中间位置处固定安装有气缸,所述气缸的输出端设置有气动伸缩杆,所述气动伸缩杆的底端固定安装有第一安装板,所述第一安装板内部的四端均开设有安装通孔,四个所述安装通孔的内部均活动安装有活动杆,四根所述活动杆的底端固定安装有第二安装板,所述第二安装板的底部固定安装有第二辊架,所述第二安装板的底部通过所述第二辊架活动安装有张紧辊。本发明通过设置一系列的结构使得本装置具有可防止线缆活动时偏移和张紧效果好的特点。(The invention discloses an automatic tensioning device for a cable in rotary scanning motion of a C-arm machine, which comprises a bottom plate and a tensioning box, the tensioning box is fixedly arranged at the top of the bottom plate, guide boxes are fixedly arranged on both sides of the tensioning box, both the guide boxes are of a structure with openings on both sides, an air cylinder is fixedly arranged at the middle position of the top of the inner side of the tensioning box, the output end of the air cylinder is provided with a pneumatic telescopic rod, a first mounting plate is fixedly mounted at the bottom end of the pneumatic telescopic rod, mounting through holes are formed in four ends of the interior of the first mounting plate, movable rods are movably mounted in the four mounting through holes, a second mounting plate is fixedly mounted at the bottom ends of the four movable rods, the bottom fixed mounting of second mounting panel has the second roller frame, the bottom of second mounting panel is passed through second roller frame movable mounting has the tensioning roller. The invention has the characteristics of preventing the cable from deviating during movement and having good tensioning effect by arranging a series of structures.)

1. The utility model provides a C arm machine rotation scanning motion cable automatic tensioning device, includes bottom plate (1) and tensioning case (7), its characterized in that: tensioning case (7) fixed mounting be in the top of bottom plate (1), the equal fixed mounting in both sides of tensioning case (7) has guide box (2), two guide box (2) are both sides open structure, the intermediate position department fixed mounting at the inboard top of tensioning case (7) has cylinder (22), the output of cylinder (22) is provided with pneumatic telescopic link (21), the bottom fixed mounting of pneumatic telescopic link (21) has first mounting panel (20), mounting hole (36) have all been seted up at four ends of first mounting panel (20) inside, four the equal movable mounting in inside of mounting hole (36) has movable rod (39), four the bottom fixed mounting of movable rod (39) has second mounting panel (19), the bottom fixed mounting of second mounting panel (19) has second roller frame (18), the bottom of second mounting panel (19) is passed through second roller frame (18) movable mounting has tensioning roller (17), the wire guide device is characterized in that first roller frames (14) are fixedly mounted on two sides of the inner bottom of the tensioning box (7), and wire guide rollers (15) are movably mounted on two sides of the inner bottom of the tensioning box (7) through the first roller frames (14).

2. The automatic tensioning device for cable of C-arm machine rotary scanning motion of claim 1, characterized in that: the wire inlet (23) is formed in the side wall of one side of the tensioning box (7), the wire outlet (16) is formed in the side wall of the other side of the tensioning box (7), and the two guide boxes (2) are located on one side of the wire inlet (23) and one side of the wire outlet (16) respectively.

3. The automatic tensioning device for cable of C-arm machine rotary scanning motion of claim 1, characterized in that: the bottom fixed mounting of bottom plate (1) has right angle mounting bracket (12), four screw thread through-holes (13) have been seted up to the equidistant bottom of right angle mounting bracket (12), and wherein two screw rod (11) are installed to the internal thread of screw thread through-hole (13), the top of screw rod (11) is provided with locating piece (9), the bottom of screw rod (11) is provided with knob (10).

4. The automatic tensioning device for cable of C-arm machine rotary scanning motion of claim 1, characterized in that: the surface movable mounting of tensioning case (7) has door axle (8), the surface of tensioning case (7) passes through door axle (8) movable mounting has chamber door (6), the surface of chamber door (6) is provided with door handle (5), just chamber door (6) with be provided with retaining member (4) between tensioning case (7).

5. The automatic tensioning device for cable of C-arm machine rotary scanning motion of claim 1, characterized in that: four the equal fixed mounting in top of movable rod (39) has dog (37), four all the cover is equipped with two springs (38) on movable rod (39), one of them spring (38) are located dog (37) with between first mounting panel (20), another spring (38) are located first mounting panel (20) with between second mounting panel (19).

6. The automatic tensioning device for cable of C-arm machine rotary scanning motion of claim 1, characterized in that: two shaft seats (24) are fixedly installed at the bottom of the inner side of the guide box (2), and a plurality of bottom rotating rollers (25) are movably installed between the two shaft seats (24).

7. The C-arm machine rotary scanning motion cable automatic tensioning device of claim 6, characterized in that: the top movable mounting of direction case (2) inboard has bull stick (31), the intermediate position department of bull stick (31) is provided with stopper (32), the surface of bull stick (31) is provided with two sections reverse screw threads, two sections reverse screw threads in bull stick (31) surface with stopper (32) are symmetric distribution of each other for the symmetric point, just equal screw thread of two sections reverse screw threads in bull stick (31) surface department cup joints and is installed internal thread cover (29), two the equal fixed mounting in bottom of internal thread cover (29) has installation piece (28), two the equal fixed mounting in bottom of installation piece (28) has C type mounting bracket (26), two the inboard impartial interval movable mounting of C type mounting bracket (26) has a plurality of side to change roller (27).

8. The C-arm machine rotary scanning motion cable automatic tensioning device of claim 7, characterized in that: one end of the rotating rod (31) is connected with a connecting shaft (35), and one end of the connecting shaft (35) is provided with a rotating handle (3).

9. The C-arm machine rotary scanning motion cable automatic tensioning device of claim 7, characterized in that: the top fixed mounting of direction case (2) inboard has gag lever post (33), gag lever post (33) are located bull stick (31) directly over, movable sleeve joint installs two stop collars (30) on gag lever post (33), two stop collar (30) are located two respectively directly over female thread bush (29), just female thread bush (29) with fixed mounting has connecting block (34) between stop collar (30).

Technical Field

The invention relates to the technical field of C-arm machines, in particular to an automatic tensioning device for a cable in rotary scanning movement of a C-arm machine.

Background

The C-arm machine is a movable X-ray machine integrating light collection, machine and image processing technologies, and generally comprises a high voltage generator, an X-ray tube, an operation control system, a display and the like. The imaging of the C-shaped arm X machine is a two-dimensional image, is visual and clear, is easy to master by surgeons and is convenient to popularize and use. In order to match with operations of different parts of different patients, the C-shaped arm X machine commonly used in orthopedics at present is in a bedside moving type, and plays a unique role in the aspects of positioning of the orthopedic operations, the examination and restoration effects, the development and treatment of minimally invasive operations and the like.

The C arm machine is convenient for the regulation of different angle directions, and its cable that is used for connecting each part also can be along with the activity of the last part of C arm machine and move about, and then it is indispensable to carry out the tensioning to the cable on the C arm machine, but most all simple structure of current overspeed device tensioner, can not fix a position the cable, prevent its skew, and the tensioning in-process can not cushion the tensioning force, easily injure the cable, consequently, we provide a C arm machine rotation scanning motion cable automatic tensioning device solution problem in order to solve this a series of problems.

Disclosure of Invention

The invention aims to provide an automatic tensioning device for a cable in rotary scanning motion of a C-arm machine, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic tensioning device for a rotary scanning motion cable of a C-arm machine comprises a bottom plate and a tensioning box, wherein the tensioning box is fixedly mounted at the top of the bottom plate, guide boxes are fixedly mounted on two sides of the tensioning box respectively, two guide boxes are of two-side opening structures, a cylinder is fixedly mounted at the middle position of the top of the inner side of the tensioning box, an output end of the cylinder is provided with a pneumatic telescopic rod, a first mounting plate is fixedly mounted at the bottom end of the pneumatic telescopic rod, four mounting through holes are formed in four ends of the inner part of the first mounting plate respectively, four movable rods are movably mounted in the mounting through holes respectively, a second mounting plate is fixedly mounted at the bottom end of each movable rod, a second roller frame is fixedly mounted at the bottom of the second mounting plate, a tensioning roller is movably mounted at the bottom of the second mounting plate through the second roller frame, first roller frames are fixedly mounted on two sides of the bottom of the inner side of the tensioning box respectively, wire guiding rollers are movably mounted on two sides of the bottom of the inner side of the tensioning box through the first roller frame.

Preferably, a wire inlet is formed in the side wall of one side of the tensioning box, a wire outlet is formed in the side wall of the other side of the tensioning box, and the two guide boxes are respectively located on one side of the wire inlet and one side of the wire outlet.

Preferably, the bottom fixed mounting of bottom plate has the right angle mounting bracket, four screw thread through-holes have been seted up to the equidistant bottom of right angle mounting bracket, and wherein two the screw rod is installed to the internal thread of screw thread through-hole, the top of screw rod is provided with the locating piece, the bottom of screw rod is provided with the knob.

Preferably, a door shaft is movably mounted on the surface of the tensioning box, a box door is movably mounted on the surface of the tensioning box through the door shaft, a door handle is arranged on the surface of the box door, and a locking piece is arranged between the box door and the tensioning box.

Preferably, four the equal fixed mounting in top of movable rod has the dog, four all the cover is equipped with two springs on the movable rod, one of them the spring is located the dog with between the first mounting panel, another the spring is located first mounting panel with between the second mounting panel.

Preferably, two shaft seats are fixedly installed at the bottom of the inner side of the guide box, and a plurality of bottom rotating rollers are movably installed between the two shaft seats.

Preferably, there is the bull stick at the inboard top movable mounting of guide box, the intermediate position department of bull stick is provided with the stopper, the surface of bull stick is provided with two sections reverse screw threads, two sections reverse screw threads in bull stick surface with the stopper is symmetrical point symmetric distribution of each other, just the equal screw thread of two sections reverse screw thread departments in bull stick surface cup joints and installs the internal thread cover, two the equal fixed mounting in bottom of internal thread cover has the installation piece, two the equal fixed mounting in bottom of installation piece has C type mounting bracket, two the roller is changeed to the inboard impartial interval movable mounting of C type mounting bracket has a plurality of side.

Preferably, one end of the rotating rod is connected with a connecting shaft, and one end of the connecting shaft is provided with a rotating handle.

Preferably, the top fixed mounting of guide box inboard has the gag lever post, the gag lever post is located directly over the bull stick, movable sleeve joint installs two stop collars, two on the gag lever post the stop collar is located two respectively directly over the internal thread cover, just the internal thread cover with fixed mounting has the connecting block between the stop collar.

Compared with the prior art, the invention has the beneficial effects that: the C-arm machine is scientific and reasonable in structure and safe and convenient to use, the device can be mounted on the machine arm of the C-arm machine through the right-angle mounting rack, a proper threaded through hole is selected according to the actual size of the machine arm, and then the two knobs are respectively rotated to enable the two screw rods to rotate, so that the two screw rods are fixed through the two positioning blocks; the guide boxes are arranged on the two sides of the tensioning box, the two rotating handles are respectively rotated to enable the two rotating rods to rotate, the two rotating rods respectively drive the two internal thread sleeves on the rotating rods to move, and then the two C-shaped mounting frames in the tensioning box move to limit the cable on the C-arm machine, so that the cable tensioning effect is prevented from being influenced due to deviation generated in use; the box door is opened, the cable penetrates through the tensioning box and the two guide boxes, the cylinder is controlled, the cylinder drives the pneumatic telescopic rod to stretch out, the pneumatic telescopic rod further drives the tensioning roller at the bottom of the pneumatic telescopic rod to descend to be in contact with the cable to tension the cable, a good buffering effect is achieved through the spring, the cable cannot be damaged when the tensioning force is too large, and the tensioning force can be improved through the acting force of the spring when the tensioning force is too small.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the interior of the tensioning box of the present invention;

FIG. 3 is an enlarged view of the invention at A in FIG. 2;

FIG. 4 is a schematic view of the interior of the guide box of the present invention;

fig. 5 is an enlarged view of the invention at B in fig. 4.

In the figure: 1. a base plate; 2. a guide box; 3. a handle is rotated; 4. a locking member; 5. a door handle; 6. a box door; 7. a tensioning box; 8. a door shaft; 9. positioning blocks; 10. a knob; 11. a screw; 12. a right-angle mounting rack; 13. a threaded through hole; 14. a first roll stand; 15. a wire guide roller; 16. an outlet; 17. a tension roller; 18. a second roll stand; 19. a second mounting plate; 20. a first mounting plate; 21. a pneumatic telescopic rod; 22. a cylinder; 23. a wire inlet; 24. a shaft seat; 25. bottom roller rotation; 26. a C-shaped mounting rack; 27. a lateral roller; 28. mounting blocks; 29. an internal thread sleeve; 30. a limiting sleeve; 31. a rotating rod; 32. a limiting block; 33. a limiting rod; 34. connecting blocks; 35. a connecting shaft; 36. mounting a through hole; 37. a stopper; 38. a spring; 39. a movable rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a technical scheme of an automatic tensioning device for a cable in rotary scanning movement of a C-arm machine comprises a bottom plate 1 and a tensioning box 7, wherein the tensioning box 7 is fixedly arranged at the top of the bottom plate 1, two sides of the tensioning box 7 are both fixedly provided with guide boxes 2, both the guide boxes 2 are both of a two-side opening structure, a cylinder 22 is fixedly arranged at the middle position of the top of the inner side of the tensioning box 7, the output end of the cylinder 22 is provided with a pneumatic telescopic rod 21, the bottom end of the pneumatic telescopic rod 21 is fixedly provided with a first mounting plate 20, four ends of the inner part of the first mounting plate 20 are both provided with mounting through holes 36, movable rods 39 are movably arranged in the four mounting through holes 36, the bottom ends of the four movable rods 39 are fixedly provided with a second mounting plate 19, the bottom of the second mounting plate 19 is fixedly provided with a second roller frame 18, the bottom of the second mounting plate 19 is movably provided with a tensioning roller 17 through the second roller frame 18, and two sides of the bottom of the inner side of the tensioning box 7 are both fixedly provided with first roller frames 14, both sides of the inner bottom of the tensioning box 7 are movably provided with wire guide rollers 15 through a first roller frame 14.

Preferably, the side wall of one side of the tensioning box 7 is provided with a wire inlet 23, the side wall of the other side of the tensioning box 7 is provided with a wire outlet 16, and the two guide boxes 2 are respectively positioned on one side of the wire inlet 23 and one side of the wire outlet 16, so that the device is reasonable in design, and a cable can pass through the guide boxes 2 and the tensioning box 7.

Preferably, the bottom fixed mounting of bottom plate 1 has right angle mounting bracket 12, and four screw through-holes 13 have been seted up to the equidistant bottom of right angle mounting bracket 12, and wherein the screw rod 11 is installed to the internal thread of two screw through-holes 13, and the top of screw rod 11 is provided with locating piece 9, and the bottom of screw rod 11 is provided with knob 10, and then is convenient for be connected this device with the C arm machine.

Preferably, the surface of the tensioning box 7 is movably provided with a door shaft 8, the surface of the tensioning box 7 is movably provided with a box door 6 through the door shaft 8, the surface of the box door 6 is provided with a door handle 5, and a locking piece 4 is arranged between the box door 6 and the tensioning box 7, so that the device is reasonable in design and convenient for a cable to pass through the device.

Preferably, the top of four movable rods 39 is fixed with the stop block 37, two springs 38 are sleeved on the four movable rods 39, one of the springs 38 is located between the stop block 37 and the first mounting plate 20, the other spring 38 is located between the first mounting plate 20 and the second mounting plate 19, a good buffering effect is achieved through the springs 38, the cable cannot be damaged when the tension force is too large, and when the tension force is too small, the tension force can be improved through the acting force of the springs 38.

Preferably, two axle seats 24 are fixedly installed at the bottom of the inner side of the guide box 2, a plurality of bottom rotating rollers 25 are movably installed between the two axle seats 24, a rotating rod 31 is movably installed at the top of the inner side of the guide box 2, a limiting block 32 is arranged at the middle position of the rotating rod 31, two sections of reverse threads are arranged on the surface of the rotating rod 31, the two sections of reverse threads on the surface of the rotating rod 31 are symmetrically distributed by taking the limiting block 32 as a symmetric point, an internal thread sleeve 29 is installed at the equal threaded position of the two sections of reverse threads on the surface of the rotating rod 31 in a sleeved mode, an installation block 28 is fixedly installed at the bottom of the two internal thread sleeves 29, a C-shaped installation frame 26 is fixedly installed at the bottom of the two installation blocks 28, a plurality of side rotating rollers 27 are movably installed at equal intervals on the inner sides of the two C-shaped installation frames 26, and therefore, a cable on the C-arm machine can be limited and can be prevented from being deviated.

Preferably, one end of the rotating rod 31 is connected with a connecting shaft 35, and one end of the connecting shaft 35 is provided with the rotating handle 3, so that the rotating rod 31 can be driven to rotate conveniently.

Preferably, the top fixed mounting of guide box 2 inboard has gag lever post 33, gag lever post 33 is located bull stick 31 directly over, two stop collars 30 are installed to the movable sleeve joint on the gag lever post 33, two stop collars 30 are located two internal thread cover 29 directly over respectively, and fixed mounting has connecting block 34 between internal thread cover 29 and the stop collar 30, when making bull stick 31 rotate, two internal thread cover 29 can not rotate along with bull stick 31's rotation, can only be on bull stick 31 in opposite directions or reverse movement simultaneously.

The working principle is as follows: before use, the safety of each structure of the device is checked, wherein the air cylinder 22 is an existing element and can be installed and used according to the actual use requirement, according to the actual size of the machine arm of the C-arm machine, a proper thread through hole 13 is selected, and then the two knobs 10 are respectively rotated to enable the two screw rods 11 to rotate, then the device is fixed on a C-arm machine through two positioning blocks 9, a box door 6 is opened, a cable penetrates through a tensioning box 7 and two guide boxes 2, two rotating handles 3 are respectively rotated, so that the two rotating rods 31 rotate, the two rotating rods 31 respectively drive the two internal thread sleeves 29 on the two rotating rods to move, and then the two C-shaped mounting frames 26 in the tensioning box 7 move, the cable on the C-arm machine is limited, the cylinder 22 is controlled, the cylinder 22 drives the pneumatic telescopic rod 21 to extend out, and the pneumatic telescopic rod 21 drives the tensioning roller 17 at the bottom of the pneumatic telescopic rod to descend to contact with the cable to tension the cable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.