Ox head rotating structure for moving DR (Digital Radiography)

Abstract

The utility model discloses an ox head rotating structure for moving a DR (Digital Radiography), which comprises a machine head fork and a bulb tube connecting plate, and is characterized in that a transverse rotating mechanism with a rotating and positioning function is arranged in the middle of the machine head fork, one end of the bulb tube connecting plate is rotatably connected with the machine head fork through a longitudinal rotating mechanism I with a rotating and positioning function, and the other end of the bulb tube connecting plate is connected with the machine head fork. The other end of the bulb tube connecting plate is rotationally connected with the machine head fork through a second longitudinal rotating mechanism with the limit limiting function, and a light bundling device connecting plate used for installing a light bundling device is installed in the middle of the bulb tube connecting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of bull head rotating structures, in particular to a bull head rotating structure of a mobile DR. Background Art

[0002] Mobile DR refers to a mobile X-ray photography system, in which the bullhead is the general term for the tube, harness assembly and operating handle assembly, the tube is the X-ray tube assembly, and the cross arm is the connecting arm used to connect the bullhead assembly.

[0003] At present, the head rotation of mobile DR on the market can basically rotate horizontally and vertically, but the applicability to the ball tube and the cross arm is poor. It is often specially designed for a specified ball tube or cross arm. If the ball tube or the cross arm is replaced, the structural changes will be relatively large. At the same time, many head rotation structures on the market currently do not have rotation positioning and limit functions, and some structures with rotation positioning functions are relatively complex, that is, there are the following problems: 1. The structure is relatively complex; 2. The functional layout is unreasonable; 3. The structural adaptability is poor; In view of the above problems, a bull head rotation structure with a simpler structure, a more reasonable functional layout and a stronger structural adaptability is proposed. Summary of the invention

[0004] The purpose of the present application is to provide a bull head rotating structure for mobile DR.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a rotating structure of the bull head of a mobile DR, including a machine head fork and a ball tube connecting plate, characterized in that a transverse rotating mechanism with a rotational positioning function is installed in the middle of the machine head fork, one end of the ball tube connecting plate is rotatably connected to the machine head fork through a longitudinal rotating mechanism 1 with a rotational positioning function, and the other end of the ball tube connecting plate is rotatably connected to the machine head fork through a longitudinal rotating mechanism 2 with an extreme limiting function, and a beam spotter connecting plate for installing a beam spotter is installed in the middle of the ball tube connecting plate.

[0006] The lateral rotation mechanism includes a head connecting seat, a head connecting shaft and a locking nut, one end of the head connecting shaft is connected to the middle part of the head fork, the other end of the head connecting shaft is threadedly connected to the locking nut, the head connecting seat and the head connecting shaft are rotatably connected, a telescopic positioning bearing group is provided on the head connecting seat, and one end of the head connecting shaft also has a plurality of positioning grooves that cooperate with the telescopic positioning bearing group.

[0007] The other end of the machine head connecting shaft is also sleeved with a disc-shaped spring washer and a damping friction plate.

[0008] An oil-free copper sleeve is also installed on the machine head connecting seat.

[0009] The longitudinal rotation mechanism 1 includes a rotation positioning seat, a nut 1 and a connecting plate 1. The rotation positioning seat is installed at one end of the machine head fork, and the connecting plate 1 is rotatably installed on the rotation positioning seat. The connecting plate 1 is connected to one end of the ball tube connecting plate. The rotation positioning seat is provided with a floating positioning bearing group, and the connecting plate 1 has a positioning groove that matches the floating positioning bearing group. The nut 1 is connected to the connecting plate 1.

[0010] The second longitudinal rotation mechanism includes a rotation limit seat, a second nut and a second connecting plate. The rotation limit seat is installed at the other end of the machine head fork, and the second connecting plate is rotatably installed on the rotation limit seat. The second connecting plate is connected to the other end of the ball tube connecting plate. The rotation limit seat has a limit axis pin, and the second connecting plate has an arc groove that matches the limit axis pin. The second nut is connected to the second connecting plate.

[0011] The connecting plate 1 is also connected with a stop washer 1, a disc-shaped spring washer 2 and a damping friction plate 2.

[0012] The second connecting plate is also connected with a second stop washer, a third disc spring washer and a third damping friction plate.

[0013] A decorative ring 1 is also installed at one end of the machine head fork, and a decorative cover 1 is slidably installed on the decorative ring 1; a decorative ring 2 is also installed at the other end of the machine head fork, and a decorative cover 2 is slidably installed on the decorative ring 2.

[0014] The machine head fork is formed by bending a single plate, and the machine head fork has a recessed portion bent backward for space avoidance; the center of the machine head connecting shaft has a through hole for wiring.

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] 1. The machine head fork has a simple structure, is easy to process and has low cost.

[0017] 2. It integrates the functions of damping hovering, angle positioning feel, and extreme position limiting.

[0018] 3. The structure has strong adaptability and can be used for cross arms with wiring requirements and can be used for different types of tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2The three-dimensional structure of the horizontal rotation mechanism in the utility model is shown in FIG. Figure 1 ;

[0022] Figure 3 The three-dimensional structure of the horizontal rotation mechanism in the utility model is shown in FIG. Figure 2 ;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the longitudinal rotating mechanism 1 in the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the longitudinal rotating mechanism 2 in the utility model;

[0025] In the figure: 1. horizontal rotation mechanism; 2. machine head fork; 3. longitudinal rotation mechanism 1; 4. tube connecting plate; 5. beamer connecting plate; 6. longitudinal rotation mechanism 2; 7. machine head connecting seat; 8. telescopic positioning bearing group; 9. machine head connecting shaft; 10. locking nut; 11. disc spring washer 1; 12. damping friction plate 1; 13. oil-free copper sleeve; 14. decorative cover 1; 15. nut 1; 16. anti-retraction washer 1; 17. disc spring washer 2; 18. damping friction plate 2; 19. decorative ring 1; 20. rotation positioning seat; 21. floating positioning bearing group; 22. connecting plate 1; 23. rotation limit seat; 24. limit shaft nail; 25. connecting plate 2; 34. decorative cover 2; 35. nut 2; 36. anti-retraction washer 2; 37. disc spring washer 3; 38. damping friction plate 3; 39. decorative ring 2. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] like Figure 1-Figure 5 As shown, the bull head rotation structure of the mobile DR includes a head fork 2 and a tube connecting plate 4, a transverse rotation mechanism 1 with a rotation positioning function is installed in the middle of the head fork 2, which is used for the transverse rotation of the head fork 2; one end of the tube connecting plate 4 is rotatably connected to the head fork 2 through a longitudinal rotation mechanism 3 with a rotation positioning function, and the other end of the tube connecting plate 4 is rotatably connected to the head fork 2 through a longitudinal rotation mechanism 6 with an extreme limiting function, which is used for the longitudinal rotation of the tube; a beam spotter connecting plate 5 for installing a beam spotter is installed in the middle of the tube connecting plate 4. In practice, the distance from the beam spotter mounting surface to the tube focus can be adjusted by changing the thickness of the beam spotter connecting plate 5, so that it can be suitable for tubes and beam spotters with different installation size requirements.

[0028] The lateral rotation mechanism 1 includes a head connecting seat 7, a head connecting shaft 9 and a locking nut 10. One end of the head connecting shaft 9 is connected to the middle part of the head fork 2, and the other end of the head connecting shaft 9 is threadedly connected to the locking nut 10. The head connecting seat 7 and the head connecting shaft 9 are rotatably connected. A telescopic positioning bearing group 8 is provided on the head connecting seat 7. The telescopic positioning bearing group 8 adopts an existing product; one end of the head connecting shaft 9 also has a plurality of positioning grooves that match the telescopic positioning bearing group 8; the other end of the head connecting shaft 9 is also sleeved with a disc-shaped spring washer 11 and a damping friction plate 12; an oil-free copper sleeve 13 is also installed on the head connecting seat 7; in this embodiment, the number of the telescopic positioning bearing group 8 is two, and the number of the positioning grooves is There are four of them; with this structure, the lateral rotation mechanism 1 has damping suspension and positioning grooves every ninety degrees. The rotation damping force of the head connecting shaft 9 can be adjusted by adjusting the tightness of the locking nut 10. There are two telescopic positioning bearing groups 8 between the head connecting shaft 9 and the head connecting seat 7. The four positioning grooves on the head connecting shaft 9 are used to achieve the positioning feel during the rotation of the head connecting shaft 9. The positioning groove of the head connecting shaft 9 is long, which can ensure that the telescopic positioning bearing group 8 can smoothly enter the positioning groove for positioning. There is an installation groove on the head connecting seat 7 that matches the telescopic positioning bearing group 8. The shape of the installation groove matches the shape of the telescopic positioning bearing group 8, which serves as a telescopic guide for the telescopic positioning bearing group 8.

[0029] The longitudinal rotation mechanism 3 includes a rotation positioning seat 20, a nut 15 and a connecting plate 22. The rotation positioning seat 20 is installed at one end of the machine head fork 2, and the connecting plate 22 is rotatably installed on the rotation positioning seat 20. The connecting plate 22 is connected to one end of the ball tube connecting plate 4. A floating positioning bearing group 21 is provided on the rotation positioning seat 20. The floating positioning bearing group 21 adopts an existing product. The floating positioning bearing group 21 can float on the rotation positioning seat 20, which adopts the existing technology; the connecting plate 22 has a positioning groove matched with the floating positioning bearing group 21, and the nut 15 is connected to the connecting plate 22; the connecting plate 22 is also connected with a stop washer 16, a disc spring washer 17 and a damping friction plate 18; by adopting this structure, the longitudinal rotation mechanism 3 has a specific angle rotation positioning function, and the specific angle rotation positioning function can be achieved through the cooperation of the rotation positioning seat 20, the floating positioning bearing group and the connecting plate 22.

[0030] The longitudinal rotation mechanism 26 includes a rotation limit seat 23, a nut 235 and a connecting plate 25. The rotation limit seat 23 is installed at the other end of the machine head fork 2, and the connecting plate 25 is rotatably installed on the rotation limit seat 23. The connecting plate 25 is connected to the other end of the tube connecting plate 4. The rotation limit seat 23 is provided with a limit pin 24, and the connecting plate 25 is provided with an arc groove matched with the limit pin 24. The nut 235 is connected to the connecting plate 25; the connecting plate 25 is also connected with a stop washer 236, a disc spring washer 37 and a damping friction plate 38; by adopting this structure, the longitudinal rotation mechanism 26 has an extreme position limiting function. The installation method is the same as that of the longitudinal rotation mechanism 13, but the difference is that the rotation limit seat 23, the limit pin 24 cooperate with the connecting plate 25, and the connecting plate 25 has an arc groove. The limit pin 24 slides in the arc groove to realize the extreme position limiting function.

[0031] The longitudinal rotation mechanism 1 3 and the longitudinal rotation mechanism 2 6 can both achieve the damping force of the longitudinal hovering of the nose by adjusting the tightness of the nut 1 15 and the nut 2 35 .

[0032] A decorative ring 19 is also installed at one end of the machine head fork 2, and a decorative cover 14 is slidably installed on the decorative ring 19; a decorative ring 2 39 is also installed at the other end of the machine head fork 2, and a decorative cover 2 34 is slidably installed on the decorative ring 2 39.

[0033] In practice, by changing the height of the connecting plate 1 22 and the connecting plate 2 25, the center of gravity of the head assembly is adjusted to be at the center of the rotation axis, so that it can be suitable for the installation requirements of tubes and beam spotters with different centers of gravity.

[0034] The machine head fork 2 is formed by bending a single piece of plate, which is simpler and has a simpler appearance than the multi-section spliced ​​structure on the market; the machine head fork 2 has a backward-bent recess for space avoidance, which is used for space avoidance of the high-voltage cable connector during longitudinal rotation; the center of the machine head connecting shaft 9 has a through hole for wiring, which is used for the machine head control line to enter the routing of the control electromagnet inside the cross arm.

[0035] This structure is mainly used in scenarios where the head needs to be rotated horizontally and vertically in mobile DR and other X-ray machines have similar head rotation requirements.

[0036] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The head rotating structure of the mobile DR includes a head fork (2) and a ball tube connecting plate (4), characterized in that: A transverse rotating mechanism (1) with a rotation positioning function is installed in the middle of the machine head fork (2); one end of the ball tube connecting plate (4) is rotationally connected to the machine head fork (2) through a longitudinal rotating mechanism (3) with a rotation positioning function; the other end of the ball tube connecting plate (4) is rotationally connected to the machine head fork (2) through a longitudinal rotating mechanism (6) with an extreme limiting function; a beam-splitting device connecting plate (5) for installing a beam-splitting device is installed in the middle of the ball tube connecting plate (4).

2. The bull head rotating structure of mobile DR according to claim 1 is characterized in that: The lateral rotation mechanism (1) comprises a machine head connecting seat (7), a machine head connecting shaft (9) and a locking nut (10); one end of the machine head connecting shaft (9) is connected to the middle of the machine head fork (2); the other end of the machine head connecting shaft (9) is threadedly connected to the locking nut (10); the machine head connecting seat (7) and the machine head connecting shaft (9) are rotatably connected; a telescopic positioning bearing group (8) is provided on the machine head connecting seat (7); one end of the machine head connecting shaft (9) also has a plurality of positioning grooves that match the telescopic positioning bearing group (8).

3. The bull head rotating structure of mobile DR according to claim 2 is characterized in that: The other end of the machine head connecting shaft (9) is also sleeved with a disc-shaped spring washer (11) and a damping friction plate (12).

4. The bull head rotating structure of the mobile DR according to claim 2 is characterized in that: An oil-free copper sleeve (13) is also installed on the machine head connecting seat (7).

5. The bull head rotating structure of mobile DR according to claim 1 is characterized in that: The longitudinal rotation mechanism (3) comprises a rotation positioning seat (20), a nut (15) and a connecting plate (22); the rotation positioning seat (20) is mounted on one end of the machine head fork (2); the connecting plate (22) is rotatably mounted on the rotation positioning seat (20); the connecting plate (22) is connected to one end of the ball tube connecting plate (4); a floating positioning bearing group (21) is provided on the rotation positioning seat (20); the connecting plate (22) has a positioning groove matched with the floating positioning bearing group (21); the nut (15) is connected to the connecting plate (22).

6. The bull head rotating structure of mobile DR according to claim 1 is characterized in that: The second longitudinal rotation mechanism (6) comprises a rotation limit seat (23), a second nut (35) and a second connecting plate (25); the rotation limit seat (23) is mounted on the other end of the machine head fork (2); the second connecting plate (25) is rotatably mounted on the rotation limit seat (23); the second connecting plate (25) is connected to the other end of the ball tube connecting plate (4); the rotation limit seat (23) has a limit axis pin (24); the second connecting plate (25) has an arc groove matched with the limit axis pin (24); the second nut (35) is connected to the second connecting plate (25).

7. The bull head rotating structure of mobile DR according to claim 5, characterized in that: The connecting plate 1 (22) is also connected to a stop washer 1 (16), a disc-shaped spring washer 2 (17) and a damping friction plate 2 (18).

8. The bull head rotating structure of mobile DR according to claim 6, characterized in that: The second connecting plate (25) is also connected to a second stop washer (36), a third disc spring washer (37) and a third damping friction plate (38).

9. The bull head rotating structure of mobile DR according to claim 1, characterized in that: A decorative ring (19) is also installed at one end of the machine head fork (2), and a decorative cover (14) is slidably installed on the decorative ring (19); a decorative ring (39) is also installed at the other end of the machine head fork (2), and a decorative cover (34) is slidably installed on the decorative ring (39).

10. The bull head rotating structure of mobile DR according to claim 1, characterized in that: The machine head fork (2) is formed by bending a single plate, and the machine head fork (2) has a recessed portion bent backward for space avoidance; the center of the machine head connecting shaft (9) has a through hole for wiring.

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