Active adjusting device for coverage range of lead screen

Abstract

The utility model relates to a lead screen coverage area active adjusting device which comprises two ground rails, the upper ends of the ground rails are both provided with moving assemblies, one side of each moving assembly is fixedly provided with a linkage distance measuring device, and the upper end of each moving assembly is fixedly connected with an electric control telescopic stand column and a lead screen attached to the electric control telescopic stand column. The utility model relates to the technical field of medical X-ray protection devices. According to the active adjusting device for the coverage area of the lead screen, an X-ray bulb tube irradiation field adjusting signal, a signal generated by front-back and up-down position movement of a bulb tube and a screen front-back position signal measured by a linkage distance measuring device are received by a right-angle electric push rod and an electric control telescopic stand column; the extension sections of the right-angle electric push rods and the extension sections of the electric control telescopic stand columns extend or contract correspondingly, the four mounting rods are gathered or scattered towards the middle of the square frame, then the size and height of holes formed among the four medical protection lead sheaths are automatically changed, and the effect of reducing the labor intensity of radiologists is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical X-ray protection devices, in particular to an active adjustment device for the coverage range of a lead screen. Background Art

[0002] X-ray photography is a photographic technique that uses the penetrating power of X-rays to capture the internal structure of an object.

[0003] Radiation protection device is a device used to protect personnel from unnecessary X-ray radiation during X-ray examination.

[0004] In the prior art, when using digital X-ray photography in hospital radiology departments, it is necessary to adjust the medical X-ray protection screen device according to different actual conditions such as the photographed part and the body shape of the examinee before each shooting. However, the medical X-ray protection screen devices used in most hospital radiology departments are manually adjusted. Sometimes, due to the large number of examinees, the labor intensity of radiation workers is greatly increased. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a device for actively adjusting the coverage of a lead screen, so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A device for actively adjusting the coverage range of a lead screen comprises two ground rails, each of which is provided with a moving assembly at the upper end of each ground rail, a linkage distance measuring device is fixedly installed on one side of the moving assembly, an electric-controlled telescopic column is fixedly connected to the upper end of the moving assembly, a square frame is provided at the upper end of the electric-controlled telescopic column, right-angle electric push rods are provided at the four inner corners of the square frame, and the same-direction telescopic ends of two adjacent right-angle electric push rods are commonly connected to a mounting rod, and a medical protective lead sheet is fixedly installed on the end face of the mounting rod.

[0008] Furthermore, the moving assembly includes two pulleys and a fixed frame, the two pulleys are rotatably connected to the fixed frame via a rotating shaft, and the two pulleys are arranged in the track groove of the ground rail, and the top surface of the fixed frame is provided with a positioning hole for installing the electric-controlled telescopic column.

[0009] Furthermore, the square frame includes two columns and two beams, the two beams are fixedly connected to the two ends of the columns respectively, and the two columns are fixedly connected to the upper ends of the two electrically controlled telescopic columns respectively.

[0010] Furthermore, the right-angle electric push rod includes a signal receiving controller and two electric telescopic rods. The signal receiving controller is fixedly installed at the angle between the column and the beam. The two electric telescopic rods are fixedly connected to the housing of the signal receiving controller, and the directions of the two electric telescopic rods are respectively the same as the straight line directions of the column and the beam.

[0011] Furthermore, four mounting rods are provided, and the four mounting rods together form a rectangular frame, and the mounting rod is connected to two electric telescopic rods with the same telescopic direction.

[0012] Furthermore, the linkage distance measuring device includes a resistance rod, which is installed on one side of the ground rail, a conductive sheet slidably connected to the upper end of the resistance rod, and the conductive sheet is connected to the shaft rod of the pulley through two insulating rods. A resistance signal transmitting controller is arranged at the top of the conductive sheet.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] 1. The lead screen coverage range active adjustment device receives the right-angle electric push rod through the X-ray tube irradiation field adjustment signal, the signal generated by the front and rear position movement of the tube, and the front and rear position signal of the screen measured by the linkage distance measuring device, so that the two extension sections of the right-angle electric push rod are respectively extended or contracted, so that the four installation rods gather or spread toward the middle of the square frame, thereby changing the size of the hole generated between the four medical protective lead sheets, and the signal generated by the up and down movement of the X-ray tube is received by the electric control telescopic column to control the height of the square frame, thereby adjusting the center height of the medical protective lead sheet hole to be in a straight line with the center of the X-ray beam and the X-ray detector, thereby reducing the labor intensity of radiation workers;

[0015] 2. The active adjustment device for the coverage range of the lead screen, when the screen is moved on the ground rail by manual pushing, changes the position of the conductive sheet on the resistance rod, changes the resistance value received by the resistance signal transmitting controller, and calculates the front and rear distance of the screen on the ground rail by the change of resistance value, and then transmits the signal of the front and rear distance of the screen movement from the resistance signal transmitting controller to the signal receiving controller, and when the screen is at different positions on the ground rail, the signal sent by the resistance signal transmitting controller changes according to the change of resistance value, and then controls the electric telescopic rod to make different changes through the signal receiving controller, so that the hole at the center of the screen, when the size changes, has different change coefficients according to the different positions on the ground rail, thereby achieving the effect of improving the accuracy of the change of the screen hole;

[0016] 3. The active adjustment device for the coverage range of the lead screen controls the electric control telescopic column to extend and retract up and down through the electrical signals generated by the up and down movement of the X-ray tube and the X-ray detector, controls the height of the square frame, and further adjusts the center height of the medical protective lead sheet hole to be in a straight line with the center of the X-ray beam and the X-ray detector, effectively avoiding the problem of manual height adjustment of the protective screen, effectively reducing the work steps of radiation workers and achieving the purpose of improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The utility model is a structural schematic diagram of a device for actively adjusting the coverage range of a lead screen.

[0019] Figure 2 It is a structural schematic diagram of the front side of a device for actively adjusting the coverage range of a lead screen according to the utility model.

[0020] Figure 3 It is a structural schematic diagram of the back side of a device for actively adjusting the coverage range of a lead screen according to the utility model.

[0021] Figure 4 The utility model is a lead screen coverage range active adjustment device Figure 3 Enlarged view of point A.

[0022] Figure 5 The utility model discloses a circuit diagram of a linkage distance measuring device of an active adjustment device for the coverage range of a lead screen.

[0023] In the figure, 1. ground rail; 2. moving component; 21. pulley; 22. fixing frame; 23. positioning hole; 3. linkage distance measuring device; 31. resistance rod; 32. conductive sheet; 33. resistance signal transmitting controller; 4. electric telescopic column; 5. square frame; 51. column; 52. beam; 6. right-angle electric push rod; 61. signal receiving controller; 62. electric telescopic rod; 7. mounting rod; 8. medical protective lead sheet. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Example:

[0026] Reference Figure 1 - Figure 5 The utility model discloses an active adjustment device for the coverage range of a lead screen, comprising two ground rails 1, each of which is provided with a moving assembly 2 at the upper end of each ground rail 1, a linkage distance measuring device 3 is fixedly installed on one side of the moving assembly 2, an electric-controlled telescopic column 4 is fixedly connected to the upper end of the moving assembly 2, a square frame 5 is provided at the upper end of the electric-controlled telescopic column 4, and right-angle electric push rods 6 are provided at the four inner corners of the square frame 5, and the telescopic ends of two adjacent right-angle electric push rods 6 are commonly connected with a mounting rod 7, and a medical protective lead sheet 8 is fixedly installed on the end face of the mounting rod 7.

[0027] In this embodiment, the ground rail 1 is installed between the X-ray tube and the X-ray detector, and the X-ray tube and the X-ray detector can move up and down (hereinafter referred to as movement one), the X-ray tube moves forward and backward through the ceiling rail (hereinafter referred to as movement three), and the X-ray beam range is adjusted by controlling the irradiation field of the X-ray tube (hereinafter referred to as movement two). During medical digital X-ray photography, the above practices will generate corresponding electrical signals;

[0028] When the device is in use, the X-ray tube irradiation field signal generated by the above-mentioned movement 2 and the X-ray tube front and rear position signal generated by the above-mentioned movement 3 are received by the right-angle electric push rod 6, so that the two extension sections of the right-angle electric push rod 6 are extended or contracted, so that the four installation rods 7 are gathered or spread toward the middle of the square frame 5, and then the size of the holes generated between the four medical protective lead sheets 8 respectively connected to the installation rods 7 is changed;

[0029] The linkage distance measuring device 3 calculates the front-to-rear distance of the screen moving on the ground rail 1 by the change of resistance value, and then transmits the signal of the front-to-rear distance of the screen movement by the resistance signal transmitting controller 33 to the signal receiving controller 61. When the screen is at different positions on the ground rail 1, the signal emitted by the resistance signal transmitting controller 33 changes according to the change of resistance value, and then the electric telescopic rod 62 is controlled by the signal receiving controller 61 to make different changes, so that the hole at the center of the screen has different change coefficients according to the different positions on the ground rail 1 when the size changes, thereby achieving the effect of improving the accuracy of the change of the screen hole.

[0030] At the same time, the electric signal generated by the above movement controls the electric control telescopic column 4 to extend and retract up and down, controls the height of the square frame 5, and then adjusts the height of the hole of the medical protective lead sheet 8 so that it is in a straight line with the center of the X-ray beam and the X-ray detector, effectively avoiding the problem of manual adjustment of the protective screen and reducing the labor intensity of radiation workers;

[0031] The medical protective lead sheet 8 is a flexible lead sheet, and a roller shaft rotatably connected to the side of the square frame 5 is provided at the end of the medical protective lead sheet 8 away from the mounting rod 7. When the medical protective lead sheet 8 moves following the movement of the mounting rod 7, the medical protective lead sheet 8 will automatically roll on the surface of the roller shaft due to its own rigidity.

[0032] In a further preferred embodiment of the present invention, Figure 1-Figure 5 As shown, the moving assembly 2 includes two pulleys 21 and a fixed frame 22. The two pulleys 21 are rotatably connected to the fixed frame 22 via a rotating shaft, and the two pulleys 21 are arranged in the track groove of the ground rail 1. The top surface of the fixed frame 22 is provided with a positioning hole 23 for installing the electric-controlled telescopic column 4.

[0033] In this embodiment, the movable assembly 2 is slidably connected to the ground rail 1 through the pulley 21 and the fixing frame 22, so that the screen can move freely on the ground rail 1, so as to achieve the purpose of facilitating the adjustment of the position of the protective screen.

[0034] In a further preferred embodiment of the present invention, Figure 1-Figure 5 As shown, the square frame 5 includes two columns 51 and two beams 52. The two beams 52 are fixedly connected to the two ends of the columns 51, and the two columns 51 are fixedly connected to the upper ends of the two electrically controlled telescopic columns 4, respectively. The columns 51 and the beams 52 are rotatably connected with rollers, and the rollers are rollingly connected to the end of the medical protective lead sheet 8 away from the mounting rod 7.

[0035] In this embodiment, the square frame 5 is formed by two upright posts 51 and a crossbeam 52 , and the upright posts 51 and the crossbeam 52 are fixedly connected at the joints by welding, so as to achieve the effect of improving the stability of the device.

[0036] In a further preferred embodiment of the present invention, Figure 1-Figure 5 As shown, the right-angle electric push rod 6 includes a signal receiving controller 61 and two electric telescopic rods 62. The signal receiving controller 61 is fixedly installed at the angle between the column 51 and the beam 52. The two electric telescopic rods 62 are fixedly connected to the shell of the signal receiving controller 61, and the directions of the two electric telescopic rods 62 are respectively the same as the straight line directions of the column 51 and the beam 52.

[0037] In this embodiment, a signal receiving controller 61 is used to receive the electrical signals generated by movement two and movement three and the front and rear position signals of the screen measured by the linkage distance measuring device 3. When the signal receiving controller 61 receives the electrical signals of movement two and movement three and the front and rear position signals of the screen measured by the linkage distance measuring device 3, the two electric telescopic rods 62 are controlled to move simultaneously, thereby pushing the mounting rod 7 to move, thereby achieving the effect of controlling the movement of the lead screen fixed in the middle of the mounting rod 7, wherein each signal receiving controller 61 includes two controllers and two signal receivers, which are respectively used to control the two electric telescopic rods 62 in the same right-angle electric push rod 6.

[0038] In a further preferred embodiment of the present invention, Figure 1-Figure 5 As shown, four mounting rods 7 are provided, and the four mounting rods 7 together form a rectangular frame, and the mounting rod 7 is connected to two electric telescopic rods 62 with the same telescopic direction.

[0039] In this embodiment, four installation rods 7 for installing medical protective lead sheets 8 can together form a rectangular frame setting, and when the installation rods 7 are moved, the size of the middle holes of the four lead screens can be changed.

[0040] In a further preferred embodiment of the present invention, Figure 1-Figure 5 As shown, the linkage distance measuring device 3 includes a resistance rod 31, the resistance rod 31 is installed on one side of the ground rail 1, the upper end of the resistance rod 31 is slidably connected to a conductive sheet 32, the conductive sheet 32 ​​is connected to the shaft of the pulley 21 through two insulating rods, and a resistance signal transmitting controller 33 is provided at the top of the conductive sheet 32, and the resistance signal transmitting controller 33 includes a signal converter and a microcontroller.

[0041] In this embodiment, when the screen is moved on the ground rail 1 by manual pushing, the conductive sheet 32 ​​connected to the pulley slides on the upper end of the resistance rod 31, so that the position of the conductive sheet 32 ​​on the resistance rod 31 changes, and the resistance value received by the resistance signal transmitting controller 33 changes, and the front and rear distance of the screen moving on the ground rail 1 is calculated by the change in resistance value, and the signal generated by the change in resistance value is transmitted to the receiving controller 61, and then the signal receiving controller 61 controls the two electric telescopic rods to move separately, so as to achieve the effect of adjusting the size change of the holes of the screen as the screen moves on the ground rail 1.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for actively adjusting the coverage of a lead screen, comprising two ground rails (1), characterized in that: The upper end of the floor rail (1) is provided with a moving assembly (2), one side of the moving assembly (2) is fixedly mounted with a linkage distance measuring device (3), the upper end of the moving assembly (2) is fixedly connected with an electric control telescopic column (4), the upper end of the electric control telescopic column (4) is provided with a square frame (5), the four inner corners of the square frame (5) are provided with right-angle electric push rods (6), the same-direction telescopic ends of two adjacent right-angle electric push rods (6) are commonly connected with a mounting rod (7), and the end surface of the mounting rod (7) is fixedly mounted with a medical protective lead sheet (8).

2. The active adjustment device for the coverage of a lead screen according to claim 1, characterized in that: The moving assembly (2) comprises two pulleys (21) and a fixed frame (22), the two pulleys (21) are rotatably connected to the fixed frame (22) via a rotating shaft, and the two pulleys (21) are arranged in a track groove of the ground rail (1), and a positioning hole (23) for mounting an electrically controlled telescopic column (4) is arranged on the top surface of the fixed frame (22).

3. The active adjustment device for the coverage of a lead screen according to claim 2, characterized in that: The square frame (5) comprises two upright posts (51) and two cross beams (52), the two cross beams (52) being fixedly connected to the two ends of the upright posts (51) respectively, and the two upright posts (51) being fixedly connected to the upper ends of the two electrically controlled telescopic upright posts (4) respectively.

4. The active adjustment device for the coverage of lead screen according to claim 3 is characterized in that: The right-angle electric push rod (6) comprises a signal receiving controller (61) and two electric telescopic rods (62). The signal receiving controller (61) is fixedly installed at the angle between the column (51) and the beam (52). The two electric telescopic rods (62) are fixedly connected to the housing of the signal receiving controller (61), and the directions of the two electric telescopic rods (62) are respectively the same as the straight line directions of the column (51) and the beam (52).

5. The active adjustment device for the coverage of lead screen according to claim 4, characterized in that: Four mounting rods (7) are provided, and the four mounting rods (7) together form a rectangular frame, and one mounting rod (7) is connected to two electric telescopic rods (62) having the same telescopic direction.

6. The active adjustment device for the coverage of a lead screen according to claim 5, characterized in that: The linkage distance measuring device (3) comprises a resistance rod (31), the resistance rod (31) is installed on one side of the ground rail (1), the upper end of the resistance rod (31) is slidably connected to a conductive sheet (32), the conductive sheet (32) is connected to the shaft of the pulley (21) through two insulating rods, and a resistance signal transmitting controller (33) is arranged at the top end of the conductive sheet (32).

Images