Transmission mechanism of dual-energy X-ray bone mineral density instrument

Abstract

The utility model relates to the field of dual-energy X-ray bone mineral density instruments, and particularly discloses a transmission mechanism of a dual-energy X-ray bone mineral density instrument, which comprises a vertical rod fixedly connected in a shell, the outer side of the vertical rod is slidably connected with a cross rod, the top of the cross rod is slidably connected with an instrument body, one end of the cross rod is rotatably connected with a main oblique gear, and the other end of the cross rod is rotatably connected with an auxiliary oblique gear. A limiting block is fixedly arranged at the top of one end of the cross rod, and the top of the main oblique gear is meshed with an auxiliary oblique gear; through a guide rail and a guide wheel, a transverse rod is smoother during vertical movement in the later period, when an auxiliary oblique gear rotates, a threaded rod can be driven to rotate, the threaded rod and an upper arc-shaped groove rotate in a threaded mode, a protruding block can transversely slide in a transverse sliding groove, and transverse sliding and vertical sliding can be achieved during use; when the motor is damaged, the air cylinder can continuously drive the transverse rod to vertically slide on the outer side of the vertical rod, and when the air cylinder is damaged, the motor can continuously drive the instrument body to transversely slide on the top of the transverse rod.

Description

Technical Field

[0001] The present application relates to the field of dual-energy X-ray bone densitometers, and in particular to a transmission mechanism of a dual-energy X-ray bone densitometer. Background Art

[0002] Dual-energy X-ray absorptiometry is a medical device used to measure the density of human bones. This instrument uses dual-energy X-ray absorptiometry (DXA) to assess bone health and bone density. The device can detect the mineral content in bones and help doctors diagnose bone-related problems such as fracture risk and osteoporosis.

[0003] The dual-energy X-ray bone densitometer uses a transmission mechanism to move when working. The transmission mechanism of the dual-energy X-ray bone densitometer in the prior art is driven by a belt and a motor. The drive of the belt and the motor makes the transmission mechanism of the dual-energy X-ray bone densitometer relatively simple, and in later use, there may be a problem that the entire device cannot be transmitted due to belt damage. Utility Model Content

[0004] In order to improve the problem that the entire device cannot transmit power due to belt damage during later use, the present application provides a transmission mechanism for a dual-energy X-ray bone densitometer.

[0005] The transmission mechanism of a dual-energy X-ray bone densitometer provided in this application adopts the following technical solution:

[0006] A transmission mechanism of a dual-energy X-ray bone densitometer comprises a vertical rod fixedly connected to the inside of a housing, a horizontal rod vertically slidably connected to the outside of the vertical rod, and an instrument body transversely slidably connected to the top of the horizontal rod;

[0007] A protective plate is fixedly provided at one end of the cross bar, and the main bevel gear is rotatably connected inside the protective plate. A limiting block is fixedly provided at the top of one end of the cross bar, and a secondary bevel gear is meshed at the top of the main bevel gear, and a threaded rod is fixedly provided on one side of the secondary bevel gear, and one end of the threaded rod passes through the limiting block and is rotatably connected thereto.

[0008] By adopting the above technical solution, the instrument body can slide vertically on the outside of the vertical rod through the cross rod, and the instrument body can also slide laterally on the outside of the cross rod, so the instrument body can slide both horizontally and vertically during operation.

[0009] Preferably, through grooves are provided at symmetrical positions at both ends of the cross bar, and the through grooves are sleeved on the outside of the vertical rod and slidably connected thereto.

[0010] By adopting the above technical solution, the cross bar can be sleeved on the outer side of the vertical bar through the through groove sleeve and vertically slidably connected with the vertical bar.

[0011] Preferably, a guide rail is provided on one side of the vertical rod, a guide wheel is rotatably connected to one side of the inner wall of the through groove, and the guide wheel is embedded in the inside of the guide rail and slidably connected to the guide rail, and the outer side of the guide wheel is in contact with the inner side of the guide rail.

[0012] By adopting the above technical solution, the cross bar can slide more smoothly laterally on the outside of the vertical bar through the guide wheels and the guide rails.

[0013] Preferably, a lower arc groove is opened in the middle of the top of the cross bar, and the outer side of the threaded rod is embedded in the lower arc groove and rotatably connected thereto.

[0014] By adopting the above technical solution, the threaded rod is limited by the lower arc groove inside the cross rod, so that the threaded rod will not move when rotating.

[0015] Preferably, transverse sliding grooves are provided on both sides of the top of the cross bar, and the tops of the transverse sliding grooves are slidably connected to the protrusions.

[0016] By adopting the above technical solution, the protrusion is embedded in the inside of the transverse sliding groove and can slide transversely with the cross bar through the transverse sliding groove.

[0017] Preferably, an upper arc-shaped groove is provided in the middle of the protrusion, the inner wall of the upper arc-shaped groove is fitted with the outer side of the threaded rod, and the top of the protrusion is fixedly connected to the instrument body.

[0018] By adopting the above technical solution, the upper arc groove wraps the threaded rod exposed outside, and the upper arc groove and the lower arc groove are enclosed to form a circle, and the instrument body is fixed to the top of the protrusion by bolt threads.

[0019] Preferably, a motor is fixedly provided on one side of one of the vertical rods, and the output shaft of the motor passes through the protective plate and the main bevel gear to be rotationally connected thereto.

[0020] By adopting the above technical solution, after the output shaft passes through the main bevel gear, the motor will rotate the output shaft when driving, so the output shaft will drive the main bevel gear to rotate synchronously.

[0021] Preferably, an oblique rod is fixedly provided at the bottom of the cross rod, a telescopic rod is fixedly provided at the bottom of the oblique rod, a cylinder is fixedly provided at one end of the telescopic rod, and one end of the cylinder is fixedly connected to the inner wall of the shell.

[0022] By adopting the above technical solution, the top of the diagonal rod is fixed to the bottom of the horizontal rod by bolt threads, and the bottom of the diagonal rod is welded and fixed with a telescopic rod, one end of the telescopic rod is fixed with a cylinder by bolt threads, and one end of the cylinder is fixed to the inner wall of the outer shell by bolt threads, so that the horizontal rod is driven by the cylinder to slide vertically on the vertical rod in the later stage.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the through groove, the horizontal bar is sleeved on the outside of the vertical bar and slides vertically with the vertical bar, and through the guide rail and guide wheel, the horizontal bar can move vertically more smoothly in the later stage;

[0025] 2. The main bevel gear and the auxiliary bevel gear are engaged by the motor. When the auxiliary bevel gear rotates, the threaded rod is driven to rotate, and then the threaded rod rotates with the upper arc groove thread, so that the protrusion can slide horizontally inside the horizontal slide groove, so that it can slide horizontally or vertically in later use;

[0026] 3. When the motor is damaged, the cylinder can continue to drive the cross bar to slide vertically on the outside of the vertical bar. When the cylinder is damaged, the motor can continue to drive the instrument body to slide horizontally on the top of the cross bar, so that the problems mentioned in the above background technology will not occur when the device is used later. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0029] Figure 3 This is a schematic diagram of the structure of the local equipment of the utility model Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the explosion structure of a local device of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the local equipment of the utility model Figure 2 ;

[0032] Figure 6 This is a schematic diagram of the structure of the local equipment of the utility model Figure 3 .

[0033] Reference numerals: 10, housing; 11, vertical rod; 12, guide rail; 13, cylinder; 14, inclined rod; 15, instrument body; 16, convex block; 17, upper arc groove; 18, motor;

[0034] 20. Cross bar; 21. Horizontal slide groove; 22. Through groove; 23. Guide wheel; 24. Protective plate; 25. Main bevel gear; 26. Secondary bevel gear; 27. Threaded rod; 28. Limit block; 29. ​​Lower arc groove. DETAILED DESCRIPTION

[0035] Embodiment 1, below is combined with the attached Figure 1—6 Provide further details of this application.

[0036] The embodiment of the present application discloses a transmission mechanism of a dual-energy X-ray bone densitometer, including a vertical rod 11 threadedly fixed inside a housing 10 by bolts, and a horizontal rod 20 sleeved on the outer side of the vertical rod 11 through a through groove 22 and longitudinally slidably connected to the vertical rod 11.

[0037] Please refer to Figure 4 The two ends of the guide wheel 23 are welded and fixed with a rotating shaft, and the two ends of the rotating shaft are embedded in the through groove 22 and are rotatably connected to the through groove 22. When the cross bar 20 is sleeved on the outside of the vertical bar 11, the guide wheel 23 is also synchronously embedded in the inside of the guide rail 12, so that the cross bar 20 can slide laterally on the outside of the vertical bar 11 more smoothly.

[0038] Please refer to Figure 4 A first through hole is opened in the middle of the protective plate 24, and the two ends of the main bevel gear 25 are respectively embedded in the two first through holes and rotatably connected to the protective plate 24, and a secondary bevel gear 26 is engaged with the top of the main bevel gear 25. The cross bar 20 is located at the top of one end of the protective plate 24 and is welded and fixed with a limit block 28. A second through hole is opened in the middle of the limit block 28, and a threaded rod 27 is welded and fixed on one side of the secondary bevel gear 26, and one end of the threaded rod 27 passes through the second through hole and is rotatably connected to the limit block 28.

[0039] Please refer to Figure 4 The outer side of the threaded rod 27 is embedded in the interior of the lower arc groove 29 and is rotatably connected to the lower arc groove 29. Therefore, the threaded rod 27 will be limited by the lower arc groove 29 when it rotates in the later stage, so that the position of the threaded rod 27 will not be offset when it rotates. The instrument body 15 is fixed to the top of the protrusion 16 by bolt threads. The inner wall of the upper arc groove 17 is in contact with the outer side of the threaded rod 27, and the upper arc groove 17 and the lower arc groove 29 are enclosed in a circle, so that the upper arc groove 17 and the lower arc groove 29 can wrap the outer side of the threaded rod 27.

[0040] Please refer to Figure 3-6 A motor 18 is threadedly fixed to the outside of one of the vertical rods 11 by bolts, and the output shaft of the motor 18 passes through the protective plate 24 and the main bevel gear 25 and is rotationally connected to the protective plate 24 and the main bevel gear 25. When the motor 18 is driven, the output shaft will rotate, so the output shaft will drive the main bevel gear 25 to rotate synchronously inside the protective plate 24.

[0041] Please refer to Figure 4The cylinder 13 will drive the telescopic rod to extend and retract, and when the telescopic rod is extended, it will synchronously drive the inclined rod 14 to move, so the inclined rod 14 will drive the cross bar 20 to slide vertically on the outside of the vertical rod 11. When the motor 18 is started, the main bevel gear 25 is engaged with the auxiliary bevel gear 26, and the auxiliary bevel gear 26 will drive the threaded rod 27 to rotate in the upper arc groove 17 and the lower arc groove 29, so the protrusion 16 will slide horizontally inside the horizontal slide groove 21.

[0042] Working principle and process of this utility model:

[0043] When the instrument body 15 needs to slide horizontally, the motor 18 is started, so that the motor 18 drives the output shaft and the main bevel gear 25 to rotate synchronously, so that the main bevel gear 25 will mesh with the auxiliary bevel gear 26, so that the auxiliary bevel gear 26 drives the threaded rod 27 to rotate, and the threaded rod 27 rotates on the arc groove 17, so that the protrusion 16 slides horizontally inside the horizontal slide groove 21;

[0044] When the cross bar 20 needs to slide vertically on the outside of the vertical bar 11, the cylinder 13 is started, so that the cylinder 13 drives the telescopic rod to extend and retract. When the telescopic rod is extended, the diagonal rod 14 is driven to move synchronously. Therefore, the diagonal rod 14 pushes the cross bar 20 toward the end away from the cylinder 13, so that the cross bar 20 slides vertically on the outside of the vertical rod 11. When the telescopic rod is retracted, the diagonal rod 14 pulls the cross bar 20 toward one end of the cylinder 13, so that the cross bar 20 can slide back and forth on the outside of the vertical rod 11.

[0045] Note: The cylinder 13 and the motor 18 are prior art, so they are not described in detail in the text, and the motor 18 and the cylinder 13 are controlled by a controller and electricity, which are also common prior art and are not described in detail in the text. A vertical groove is provided at one end of the main bevel gear 25, and a vertical convex strip is welded and fixed on the outer side of the output shaft of the motor 18, and the vertical convex strip is fixedly engaged with the vertical groove at one end of the main bevel gear 25, so when the output shaft of the motor 18 rotates, the main bevel gear 25 will rotate synchronously.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transmission mechanism of a dual-energy X-ray bone densitometer, characterized in that: include; A vertical rod (11) is fixedly connected to the inside of the housing (10), the outer side of the vertical rod (11) is vertically slidably connected to a cross rod (20), and the top of the cross rod (20) is laterally slidably connected to an instrument body (15); A protective plate (24) is fixedly provided at one end of the cross bar (20), and a main bevel gear (25) is rotatably connected inside the protective plate (24). A limit block (28) is fixedly provided at the top of one end of the cross bar (20), and a secondary bevel gear (26) is meshed at the top of the main bevel gear (25), and a threaded rod (27) is fixedly provided at one side of the secondary bevel gear (26), and one end of the threaded rod (27) passes through the limit block (28) and is rotatably connected thereto.

2. The transmission mechanism of the dual-energy X-ray bone densitometer according to claim 1, characterized in that: Through slots (22) are provided at symmetrical positions at both ends of the cross bar (20), and the through slots (22) are sleeved on the outside of the vertical bar (11) and are slidably connected thereto.

3. The transmission mechanism of the dual-energy X-ray bone densitometer according to claim 1, characterized in that: A guide rail (12) is provided on one side of the vertical rod (11), and a guide wheel (23) is rotatably connected to one side of the inner wall of the through groove (22), and the guide wheel (23) is embedded in the inside of the guide rail (12) and is slidably connected to the guide rail (12), and the outer side of the guide wheel (23) is in contact with the inner side of the guide rail (12).

4. The transmission mechanism of the dual-energy X-ray bone densitometer according to claim 1, characterized in that: A lower arc groove (29) is provided in the middle of the top of the cross bar (20), and the outer side of the threaded rod (27) is embedded in the lower arc groove (29) to be rotatably connected thereto.

5. The transmission mechanism of the dual-energy X-ray bone densitometer according to claim 1, characterized in that: Both sides of the top of the cross bar (20) are provided with transverse sliding grooves (21), and the top of the transverse sliding grooves (21) is slidably connected to the protrusions (16).

6. The transmission mechanism of the dual-energy X-ray bone densitometer according to claim 5, characterized in that: An upper arc groove (17) is provided in the middle of the protrusion (16), the inner wall of the upper arc groove (17) is in contact with the outer side of the threaded rod (27), and the top of the protrusion (16) is fixedly connected to the instrument body (15).

7. The transmission mechanism of the dual-energy X-ray bone densitometer according to claim 1, characterized in that: A motor (18) is fixedly arranged on one side of the vertical rod (11), and the output shaft of the motor (18) passes through the protective plate (24) and the main bevel gear (25) to be rotationally connected thereto.

8. The transmission mechanism of the dual-energy X-ray bone densitometer according to claim 1, characterized in that: The bottom of the cross bar (20) is fixedly provided with an inclined bar (14), the bottom of the inclined bar (14) is fixedly provided with a telescopic bar, one end of the telescopic bar is fixedly provided with a cylinder (13), and one end of the cylinder (13) is fixedly connected to the inner wall of the outer shell (10).

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