Linear accelerator treatment head capable of rotating in multiple directions

Abstract

The utility model discloses a linear accelerator treatment head capable of rotating in multiple directions, which comprises a shell, a first moving mechanism, a treatment bed and a second moving mechanism, the first moving mechanism is arranged in an inner cavity of the shell, and the second moving mechanism is arranged in the inner cavity of the shell. The multi-directional rotating mechanism comprises a convex arc shell, a concave arc shell, an arc-shaped gear, a rotating gear, a rotating servo motor, a protective cover, a fixed rod, an electronic element placing frame, a telescopic mechanism, a conductive contact, a power supply line, an arc-surface sliding groove, an arc-surface conductive copper plate, a first threaded sleeve, a second threaded sleeve, a first threaded rod, a first servo motor, a second threaded rod and a second servo motor; an arc-shaped sliding groove and a cylindrical sliding block are arranged. According to the device, the treatment head body can be rotated at any angle from zero to 180 degrees through the multi-directional rotating mechanism, and meanwhile, the treatment head body can be rotated at an inclined angle from zero to 15 degrees through the multi-directional rotating mechanism, so that the multi-directional rotating function is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of medical linear accelerators, in particular to a linear accelerator treatment head which can rotate in multiple directions. Background Art

[0002] Medical electron linear accelerator refers to an accelerator that uses microwave electromagnetic fields to accelerate electrons and has a linear motion track. It is a medical device used for radiotherapy of tumors or other lesions in patients. It can generate high-energy X-rays and electron beams, and has the characteristics of high dose rate, short irradiation time, large irradiation field, good dose uniformity and stability, and small penumbra area;

[0003] For example, application number CN202011636184.2 discloses a new type of medical electron linear accelerator treatment head, which has the advantages of simple structure, easy operation and control, high precision and accurate positioning. It uses an integrated electric cylinder to perform fast and accurate switching, and the switching location is at the primary collimation cone; it can provide a 30cm×28cm light field, and can provide a treatment head rotation of more than ±95°; all cables that need to move are protected by an S-shaped bidirectional curved drag chain (or a ring drag chain), but when the above device is in use, it is too large and too heavy, so it is inconvenient to rotate and move the linear accelerator treatment head, so as to adjust it to any angle.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a linear accelerator treatment head that can rotate in multiple directions is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a linear accelerator treatment head which can rotate in multiple directions, so as to solve the problem of adjusting the linear accelerator treatment head at any angle proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a linear accelerator treatment head capable of multi-directional rotation, comprising a shell, a first moving mechanism, a treatment bed, a second moving mechanism, a treatment head body and a multi-directional rotation mechanism, wherein the first moving mechanism is installed in the inner cavity of the shell, and the treatment bed is installed at the moving end of the first moving mechanism, the second moving mechanism is installed in the inner cavity of the shell, and the treatment head body is installed at the moving end of the second moving mechanism, the contact surface between the shell and the treatment head body is provided with a multi-directional rotation mechanism, the multi-directional rotation mechanism comprises a convex arc shell and a concave arc shell, the convex arc shell and the concave arc shell are installed between the shell and the treatment head body, and the convex arc shell and the concave arc shell are at the same center of a circle, and the outer diameter surface of the convex arc shell fits the inner diameter surface of the concave arc shell, the outer diameter surface of the convex arc shell is provided with an arc gear, and the arc gear is meshedly connected with a rotating gear, and the rotating gear is installed at the output shaft of the output end of the rotating servo motor, The rotary servo motor is installed in the inner cavity of the protective cover, the outer diameter surface of the convex arc shell is slidably connected with a fixing rod, an electronic component placement rack is installed on the inner side of the convex arc shell, and a telescopic mechanism is provided on one side of the electronic component placement rack, and a conductive contact is provided on the side of the telescopic mechanism away from the electronic component placement rack, and the conductive contact is electrically connected to a power supply line, the inner diameter surface of the concave arc shell is penetrated with two groups of arc surface grooves, and the two groups of arc surface grooves are symmetrically arranged, the inner diameter surface of the concave arc shell is penetrated with two groups of arc surface conductive copper plates, and the two groups of arc surface conductive copper plates are electrically connected to the two groups of conductive contacts respectively, the protective cover is installed on one side of the first threaded sleeve, the fixing rod is installed on one side of the second threaded sleeve, the first threaded sleeve is threadedly connected with a first threaded rod, and the first threaded rod is installed at the output shaft of the output end of the first servo motor, the second threaded sleeve is threadedly connected with a second threaded rod, and the second threaded rod is installed at the output shaft of the output end of the second servo motor.

[0007] Furthermore, the side end surfaces of the first threaded sleeve and the second threaded sleeve are both provided with an arc-shaped slide groove, and the protective cover and the fixed rod both form a sliding structure with the arc-shaped slide groove through a cylindrical slider, and the telescopic mechanism includes a reset spring, a slide cavity and a support rod, wherein the reset spring is installed in the inner cavity of the slide cavity, and the support rod is installed at one end of the reset spring, and the end of the support rod away from the reset spring passes through the side wall of the slide cavity and is fixedly connected to the conductive contact.

[0008] Furthermore, the first moving mechanism includes a first adjusting servo motor and a first connecting block, the first adjusting servo motor is installed at the bottom of the inner cavity of the shell, a third threaded rod is provided at the output end of the first adjusting servo motor, and a first slide rail is provided above the third threaded rod, the third threaded rod and the first slide rail both penetrate the first connecting block horizontally, and the contact surfaces of the third threaded rod and the first slide rail with the first connecting block are respectively provided with threaded holes and slide holes, and the upper end surface of the first connecting block is fixedly connected to the treatment bed through a first fixed platform.

[0009] Furthermore, the second moving mechanism includes a second adjusting servo motor and a second connecting block, the second adjusting servo motor is installed in the inner cavity of the shell, a fourth threaded rod is provided at the output end of the second adjusting servo motor, and a second slide rail is provided on one side of the fourth threaded rod, the fourth threaded rod and the second slide rail both longitudinally penetrate the second connecting block, and the contact surfaces of the fourth threaded rod and the second slide rail with the second connecting block are respectively provided with threaded holes and slide holes, and a second fixed platform on one side of the second connecting block is fixedly connected to the treatment head body.

[0010] Furthermore, the first connecting block and the third threaded rod form a threaded connection structure, the first connecting block and the first slide rail form a sliding structure, the second connecting block and the fourth threaded rod form a threaded connection structure, and the second connecting block and the second slide rail form a sliding structure.

[0011] Furthermore, the arc gear and the rotating gear constitute a gear meshing structure, the arc gear and the fixed rod and the arc surface groove constitute a sliding structure, the first threaded sleeve and the first threaded rod constitute a threaded connection structure, the second threaded sleeve and the second threaded rod constitute a threaded connection structure, and the arc groove and the cylindrical slider constitute a sliding structure.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the multi-directionally rotatable linear accelerator treatment head can rotate the treatment head body at any angle between 0 and 180 degrees through the multi-directional rotating mechanism, and can also rotate the treatment head body at an angle of 0 to 15 degrees through the multi-directional rotating mechanism, thereby realizing the multi-directional rotation function, so as to treat the person on the treatment bed;

[0013] The multi-directionally rotatable linear accelerator treatment head adjusts the treatment bed to move left and right through the first moving mechanism, so as to treat the person on the treatment bed, wherein the first adjusting servo motor is started, the first adjusting servo motor drives the third threaded rod to rotate, and when the third threaded rod rotates, the first connecting block moves with the rotation of the third threaded rod, and the first connecting block slides with the first slide rail, so as to finally drive the first fixed platform to move, so as to move the treatment bed left and right, wherein the second adjusting servo motor in the second moving mechanism is started, the second adjusting servo motor drives the fourth threaded rod to rotate, and when the fourth threaded rod rotates, the second connecting block moves with the rotation of the fourth threaded rod, and the second connecting block slides with the second slide rail, so as to move the second fixed platform up and down, so as to finally drive the treatment head body to move up and down, and then the positions of the treatment bed and the treatment head body are adjusted respectively through the first moving mechanism and the second moving mechanism, so as to enable the treatment head body to treat the person on the treatment bed;

[0014] The linear accelerator treatment head that can rotate in multiple directions can make the treatment head body rotate arbitrarily at an angle between zero and one hundred and eighty degrees through a multi-directional rotation mechanism, wherein a rotation servo motor is started, and the rotation servo motor drives the arc gear to rotate through a rotation gear at one end of a transmission shaft, and since the arc gear is fixedly connected to the convex arc shell, the rotation of the arc gear drives the convex arc shell to rotate, and a fixed rod is slidably installed on the outer diameter surface of the convex arc shell, and the convex arc shell slides with the fixed rod, thereby realizing arbitrary rotation at an angle between zero and one hundred and eighty degrees, and at the same time, the treatment head body can be rotated at an inclination angle of zero to fifteen degrees through the multi-directional rotation mechanism, wherein the first servo motor and the second servo motor drive the first threaded sleeve and the second threaded sleeve to rotate up and down respectively through the first threaded rod and the second threaded rod, and since the side ends of the first threaded sleeve and the second threaded sleeve are installed with arc sliding grooves, and during the up and down movement of the first threaded sleeve and the second threaded sleeve, the protective cover and the cylindrical slider on one side of the fixed rod are in contact with the arc sliding groove. The slide groove slides so that the treatment head body can rotate at an angle of zero to fifteen degrees, and when the treatment head body is tilted, the rotating gear is always in meshing with the arc gear, so that when tilted, the treatment head body can also rotate at any angle between zero and one hundred and eighty degrees. When the first threaded sleeve moves upward, the second threaded sleeve moves upward at the same time. Due to the action of the arc-shaped slide groove, the treatment head body is moved at an angle of zero to fifteen degrees without affecting the rotation of the treatment head body at an angle of zero to fifteen degrees. During rotation, the fixed rod and the arc gear slide with the arc-shaped slide groove, so as to finally realize the function of multi-directional rotation. During rotation, in order not to affect the normal power supply of the device to the treatment head body, the telescopic mechanism on one side of the convex arc shell makes the conductive contact always contact with the arc-shaped conductive copper plate on the side end face of the concave arc shell, so that the conductive contact contacts the arc-shaped conductive copper plate, thereby powering the electronic component placement rack and the treatment head body through the power supply line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of a linear accelerator treatment head that can rotate in multiple directions according to the utility model;

[0016] Figure 2 This is a front view structural diagram of a multi-directional rotating mechanism of a linear accelerator treatment head that can rotate in multiple directions according to the utility model;

[0017] Figure 3 This is a schematic diagram of the front view structure of the first threaded sleeve of a linear accelerator treatment head that can rotate in multiple directions according to the utility model;

[0018] Figure 4 This is a schematic diagram of the front cross-sectional structure of the first threaded sleeve of a linear accelerator treatment head that can rotate in multiple directions according to the utility model;

[0019] Figure 5 This is a schematic diagram of the front cross-sectional structure of the second threaded sleeve of a linear accelerator treatment head that can rotate in multiple directions according to the utility model;

[0020] Figure 6 This is a schematic diagram of the side view structure of a concave arc shell of a linear accelerator treatment head that can rotate in multiple directions according to the utility model;

[0021] Figure 7 This is a schematic diagram of the side view of the convex arc shell of a linear accelerator treatment head that can rotate in multiple directions according to the utility model;

[0022] Figure 8 This is a front view structural diagram of a first moving mechanism of a linear accelerator treatment head capable of rotating in multiple directions according to the utility model;

[0023] Fig. 9 The utility model is a front view structural schematic diagram of a second moving mechanism of a linear accelerator treatment head capable of multi-directional rotation.

[0024] In the figure: 1, housing; 2, first moving mechanism; 201, first adjustment servo motor; 202, first connecting block; 203, third threaded rod; 204, first slide rail; 205, first fixed platform; 3, treatment bed; 4, second moving mechanism; 401, second adjustment servo motor; 402, second connecting block; 403, fourth threaded rod; 404, second slide rail; 405, second fixed platform; 5, treatment head body; 6, multi-directional rotating mechanism; 601, convex arc shell; 602, concave arc shell; 603, arc gear; 604, Rotating gear; 605, rotating servo motor; 606, protective cover; 607, fixing rod; 608, electronic component placement rack; 609, telescopic mechanism; 6010, conductive contact; 6011, power supply line; 6012, arc-shaped slide groove; 6013, arc-shaped conductive copper plate; 6014, first threaded sleeve; 6015, second threaded sleeve; 6016, first threaded rod; 6017, first servo motor; 6018, second threaded rod; 6019, second servo motor; 6020, arc-shaped slide groove; 6021, cylindrical slider. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 9The utility model provides a technical solution: a linear accelerator treatment head capable of multi-directional rotation, comprising a shell 1, a first moving mechanism 2, a treatment bed 3, a second moving mechanism 4, a treatment head body 5 and a multi-directional rotation mechanism 6, wherein the first moving mechanism 2 is installed in the inner cavity of the shell 1, and the treatment bed 3 is installed at the moving end of the first moving mechanism 2, the inner cavity of the shell 1 is installed with the second moving mechanism 4, and the treatment head body 5 is installed at the moving end of the second moving mechanism 4, the contact surface between the shell 1 and the treatment head body 5 is provided with the multi-directional rotation mechanism 6, and the multi-directional rotation mechanism 6 includes The convex arc shell 601 and the concave arc shell 602 are installed between the shell 1 and the treatment head body 5, and the convex arc shell 601 and the concave arc shell 602 are at the same center of a circle, and the outer diameter surface of the convex arc shell 601 fits the inner diameter surface of the concave arc shell 602, the outer diameter surface of the convex arc shell 601 is provided with an arc gear 603, and the arc gear 603 is meshed and connected with a rotating gear 604, the rotating gear 604 is installed at the output shaft of the output end of the rotating servo motor 605, the rotating servo motor 605 is installed in the inner cavity of the protective cover 606, and the convex arc shell 601 is provided with an arc gear 603. The outer diameter surface of the concave arc shell 602 is slidably connected with a fixing rod 607, an electronic component placement rack 608 is installed on the inner side of the convex arc shell 601, and a telescopic mechanism 609 is provided on one side of the electronic component placement rack 608, and a conductive contact 6010 is provided on the side of the telescopic mechanism 609 away from the electronic component placement rack 608, and the conductive contact 6010 is electrically connected to a power supply line 6011, and two groups of arc surface sliding grooves 6012 are dug through the inner diameter surface of the concave arc shell 602, and the two groups of arc surface sliding grooves 6012 are symmetrically arranged, and two groups of arc surface conductive copper plates 6012 are embedded through the inner diameter surface of the concave arc shell 602 013, and the two groups of arc surface conductive copper plates 6013 are electrically connected to the two groups of conductive contacts 6010 respectively, the protective cover 606 is installed on one side of the first threaded sleeve 6014, the fixing rod 607 is installed on one side of the second threaded sleeve 6015, the first threaded sleeve 6014 is threadedly connected with the first threaded rod 6016, and the first threaded rod 6016 is installed at the output shaft of the output end of the first servo motor 6017, the second threaded sleeve 6015 is threadedly connected with the second threaded rod 6018, and the second threaded rod 6018 is installed at the output shaft of the output end of the second servo motor 6019;

[0027] The side end surfaces of the first threaded sleeve 6014 and the second threaded sleeve 6015 are both provided with an arcuate slide groove 6020, and the protective cover 606 and the fixed rod 607 both form a sliding structure with the arcuate slide groove 6020 through a cylindrical slider 6021. The telescopic mechanism 609 includes a reset spring, a slide cavity and a support rod, wherein the reset spring is installed in the inner cavity of the slide cavity, and the support rod is installed at one end of the reset spring, and the end of the support rod away from the reset spring passes through the side wall of the slide cavity and is fixedly connected to the conductive contact 6010, the arcuate gear 603 and the rotating gear 604 form a gear meshing structure, the arcuate gear 603 and the fixed rod 607 and the arcuate slide groove 6012 form a sliding structure, the first threaded sleeve 6014 and the first threaded rod 6016 form a threaded connection structure, the second threaded sleeve 6015 and the second threaded rod 6018 form a threaded connection structure, and the arcuate slide groove 6020 and the cylindrical slider 6021 form a sliding structure;

[0028] The first moving mechanism 2 includes a first adjusting servo motor 201 and a first connecting block 202. The first adjusting servo motor 201 is installed at the bottom of the inner cavity of the housing 1. The output end of the first adjusting servo motor 201 is provided with a third threaded rod 203, and a first slide rail 204 is provided above the third threaded rod 203. The third threaded rod 203 and the first slide rail 204 both penetrate the first connecting block 202 horizontally, and the contact surfaces of the third threaded rod 203 and the first slide rail 204 with the first connecting block 202 are respectively provided with threaded holes and slide holes. The upper end surface of the first connecting block 202 is fixedly connected to the treatment bed 3 through the first fixing platform 205. Next, the second moving mechanism 4 includes a second adjusting servo motor 401 and a second connecting block 402, the second adjusting servo motor 401 is installed in the inner cavity of the housing 1, a fourth threaded rod 403 is provided at the output end of the second adjusting servo motor 401, and a second slide rail 404 is provided on one side of the fourth threaded rod 403, the fourth threaded rod 403 and the second slide rail 404 both longitudinally penetrate the second connecting block 402, and the contact surfaces of the fourth threaded rod 403 and the second slide rail 404 with the second connecting block 402 are respectively provided with threaded holes and slide holes, and a second fixing platform 405 on one side of the second connecting block 402 is fixedly connected to the treatment head body 5;

[0029] The multi-directional rotating mechanism 6 is used to make the treatment head body 5 rotate arbitrarily at an angle between zero and one hundred and eighty degrees, wherein the rotating servo motor 605 is started, and the rotating servo motor 605 drives the arc gear 603 to rotate by using the rotating gear 604 at one end of the transmission shaft. Since the arc gear 603 is fixedly connected to the convex arc shell 601, the rotation of the arc gear 603 drives the convex arc shell 601 to rotate, and the outer diameter surface of the convex arc shell 601 is slidably installed with a fixing rod 607, and the convex arc shell 601 slides with the fixing rod 607, thereby realizing arbitrary rotation at an angle between zero and one hundred and eighty degrees, and at the same time The multi-directional rotating mechanism 6 can also be used to rotate the treatment head body 5 at an angle of zero to fifteen degrees, wherein the first servo motor 6017 and the second servo motor 6019 respectively use the first threaded rod 6016 and the second threaded rod 6018 to drive the first threaded sleeve 6014 and the second threaded sleeve 6015 to rotate up and down, and because the side ends of the first threaded sleeve 6014 and the second threaded sleeve 6015 are equipped with arc-shaped sliding grooves 6020, and the first threaded sleeve 6014 and the second threaded sleeve 6015 are in the process of moving up and down, the cylindrical slider 6021 on one side of the protective cover 606 and the fixed rod 607 is connected to the protective cover 606 and the fixed rod 607. The arc-shaped slide groove 6020 slides so that the treatment head body 5 can rotate at an angle of zero to fifteen degrees, and when the treatment head body 5 is tilted, the rotating gear 604 is always in meshing with the arc-shaped gear 603, so that when tilted, the treatment head body 5 can also rotate at any angle between zero and one hundred and eighty degrees. When the first threaded sleeve 6014 moves upward, the second threaded sleeve 6015 moves upward at the same time. Due to the effect of the arc-shaped slide groove 6020, the treatment head body 5 is tilted at an angle of zero to fifteen degrees without affecting the treatment head body 5. When rotating, the fixed rod 607 and the arc gear 603 slide with the arc surface slide groove 6012, so as to finally realize the function of multi-directional rotation, and when rotating, in order not to affect the normal power supply of the device to the treatment head body 5, the telescopic mechanism 609 on one side of the convex arc shell 601 makes the conductive contact 6010 always contact with the arc surface conductive copper plate 6013 on the side end face of the concave arc shell 602, so that the conductive contact 6010 contacts with the arc surface conductive copper plate 6013, and then supplies power, and the power supply line 6011 is used to power the electronic component placement rack 608 and the treatment head body 5;

[0030] The first connecting block 202 and the third threaded rod 203 form a threaded connection structure, the first connecting block 202 and the first slide rail 204 form a sliding structure, the second connecting block 402 and the fourth threaded rod 403 form a threaded connection structure, the second connecting block 402 and the second slide rail 404 form a sliding structure, and the first moving mechanism 2 is used to adjust the left and right movement of the treatment bed 3 so as to treat the person on the treatment bed 3, wherein the first adjustment servo motor 201 is started, and the first adjustment servo motor 201 drives the third threaded rod 203 to rotate, and when the third threaded rod 203 rotates, the first connecting block 202 will move with the rotation of the third threaded rod 203, and at the same time, the first connecting block 202 will slide with the first slide rail 204, so as to Finally, the first fixed platform 205 is driven to move so that the treatment bed 3 moves left and right, wherein the second adjustment servo motor 401 in the second moving mechanism 4 is started, and the second adjustment servo motor 401 drives the fourth threaded rod 403 to rotate, and when the fourth threaded rod 403 rotates, the second connecting block 402 moves with the rotation of the fourth threaded rod 403, and at the same time, the second connecting block 402 slides with the second slide rail 404, thereby causing the second fixed platform 405 to move up and down, so as to finally drive the treatment head body 5 to move up and down, and then use the first moving mechanism 2 and the second moving mechanism 4 to adjust the positions of the treatment bed 3 and the treatment head body 5 respectively, so that the treatment head body 5 can treat the person on the treatment bed 3.

[0031] Working principle: When a linear accelerator treatment head capable of rotating in multiple directions is used, the first moving mechanism 2 is used to adjust the left and right movement of the treatment bed 3, wherein the first adjusting servo motor 201 is started, and the first adjusting servo motor 201 drives the third threaded rod 203 to rotate, and when the third threaded rod 203 rotates, the first connecting block 202 moves with the rotation of the third threaded rod 203, and at the same time, the first connecting block 202 slides with the first slide rail 204, so as to finally drive the first fixed platform 205 to move, so as to move the treatment bed 3 left and right, and the second adjusting servo motor 401 in the second moving mechanism 4 is started, and the second adjusting servo motor 401 drives the fourth threaded rod 403 to rotate, and the fourth threaded rod 403 is During rotation, the second connecting block 402 will move with the rotation of the fourth threaded rod 403, and at the same time, the second connecting block 402 will slide with the second slide rail 404, thereby causing the second fixed platform 405 to move up and down, so as to finally drive the treatment head body 5 to move up and down, so that the treatment head body 5 can treat the person on the treatment bed 3, wherein the multi-directional rotating mechanism 6 is used to rotate the treatment head body 5, wherein the rotating servo motor 605 is started, and the rotating servo motor 605 drives the arc gear 603 to rotate by using the rotating gear 604 at one end of the transmission shaft, and since the arc gear 603 is fixedly connected to the convex arc shell 601, the rotation of the arc gear 603 drives the convex arc shell 601 to rotate, and the convex arc shell 601 A fixed rod 607 is slidably installed on the outer diameter surface, and the convex arc shell 601 slides with the fixed rod 607 to realize arbitrary rotation between zero and one hundred and eighty degrees, wherein the first servo motor 6017 and the second servo motor 6019 respectively use the first threaded rod 6016 and the second threaded rod 6018 to drive the first threaded sleeve 6014 and the second threaded sleeve 6015 to rotate up and down, and because the side ends of the first threaded sleeve 6014 and the second threaded sleeve 6015 are installed with an arc-shaped slide groove 6020, and the first threaded sleeve 6014 and the second threaded sleeve 6015 are in the process of moving up and down, the protective cover 606 and the cylindrical slider 6021 on one side of the fixed rod 607 slide with the arc-shaped slide groove 6020, so that the treatment head body 5 is rotated at an angle of zero to fifteen degrees, and when the treatment head body 5 is tilted, the rotating gear 604 is always in meshing with the arc gear 603, wherein when the first threaded sleeve 6014 moves upward, the second threaded sleeve 6015 moves upward at the same time, and due to the effect of the arc-shaped slide groove 6020, when the treatment head body 5 is moved at an angle of zero to fifteen degrees, the rotation of the treatment head body 5 at an angle of zero to fifteen degrees is not affected, and during the rotation, the fixing rod 607 and the arc gear 603 slide with the arc-shaped slide groove 6012, and during the rotation, the telescopic mechanism 609 on one side of the convex arc shell 601 makes the conductive contact 6010 always contact the arc-shaped conductive copper plate 6013 on the side end surface of the concave arc shell 602,So that the conductive contact 6010 is in contact with the arc-surface conductive copper plate 6013, and then the power supply line 6011 is used to supply power to the electronic component placement rack 608 and the treatment head body 5.

Claims

1. A linear accelerator treatment head capable of rotating in multiple directions, comprising a housing (1), a first moving mechanism (2), a treatment bed (3), a second moving mechanism (4), a treatment head body (5) and a multiple direction rotating mechanism (6), characterized in that: The first moving mechanism (2) is installed in the inner cavity of the shell (1), and a treatment bed (3) is installed at the moving end of the first moving mechanism (2); the second moving mechanism (4) is installed in the inner cavity of the shell (1), and a treatment head body (5) is installed at the moving end of the second moving mechanism (4); a multi-directional rotation mechanism (6) is provided on the contact surface between the shell (1) and the treatment head body (5); the multi-directional rotation mechanism (6) comprises a convex arc shell (601) and a concave arc shell (602); the convex arc shell (601) and the concave arc shell (602) are installed between the shell (1) and the treatment head body (5); and the convex arc shell (601) and the concave arc shell (602) are installed between the shell (1) and the treatment head body (5); 01) and the concave arc shell (602) are at the same center of a circle, and the outer diameter surface of the convex arc shell (601) fits the inner diameter surface of the concave arc shell (602), the outer diameter surface of the convex arc shell (601) is provided with an arc gear (603), and the arc gear (603) is meshedly connected with a rotating gear (604), the rotating gear (604) is installed at the output shaft of the output end of the rotating servo motor (605), and the rotating servo motor (605) is installed in the inner cavity of the protective cover (606), the outer diameter surface of the convex arc shell (601) is slidably connected with a fixing rod (607), and the inner side of the convex arc shell (601) is installed An electronic component placement rack (608) is provided, and a telescopic mechanism (609) is provided on one side of the electronic component placement rack (608), and a conductive contact (6010) is provided on the side of the telescopic mechanism (609) away from the electronic component placement rack (608), and the conductive contact (6010) is electrically connected to a power supply line (6011), and two groups of arc surface slide grooves (6012) are dug through the inner diameter surface of the concave arc shell (602), and the two groups of arc surface slide grooves (6012) are symmetrically arranged, and two groups of arc surface conductive copper plates (6013) are embedded through the inner diameter surface of the concave arc shell (602), and the two groups of arc surface conductive copper plates (601 3) are electrically connected to two groups of conductive contacts (6010) respectively, the protective cover (606) is installed on one side of the first threaded sleeve (6014), the fixing rod (607) is installed on one side of the second threaded sleeve (6015), the first threaded sleeve (6014) is threadedly connected to the first threaded rod (6016), and the first threaded rod (6016) is installed at the output shaft of the output end of the first servo motor (6017), the second threaded sleeve (6015) is threadedly connected to the second threaded rod (6018), and the second threaded rod (6018) is installed at the output shaft of the output end of the second servo motor (6019).

2. The multi-directionally rotatable linear accelerator treatment head according to claim 1, characterized in that: The side end surfaces of the first threaded sleeve (6014) and the second threaded sleeve (6015) are both provided with an arc-shaped slide groove (6020), and the protective cover (606) and the fixed rod (607) both form a sliding structure with the arc-shaped slide groove (6020) through a cylindrical slider (6021), and the telescopic mechanism (609) includes a reset spring, a slide cavity and a support rod, wherein the reset spring is installed in the inner cavity of the slide cavity, and the support rod is installed at one end of the reset spring, and the end of the support rod away from the reset spring passes through the side wall of the slide cavity and is fixedly connected to the conductive contact (6010).

3. The multi-directionally rotatable linear accelerator treatment head according to claim 2, characterized in that: The first moving mechanism (2) comprises a first adjusting servo motor (201) and a first connecting block (202); the first adjusting servo motor (201) is mounted at the bottom of the inner cavity of the housing (1); a third threaded rod (203) is arranged at the output end of the first adjusting servo motor (201); a first slide rail (204) is arranged above the third threaded rod (203); the third threaded rod (203) and the first slide rail (204) both penetrate the first connecting block (202) transversely; and the contact surfaces of the third threaded rod (203) and the first slide rail (204) with the first connecting block (202) are respectively provided with threaded holes and slide holes; the upper end surface of the first connecting block (202) is fixedly connected to the treatment bed (3) via a first fixing platform (205).

4. The multi-directionally rotatable linear accelerator treatment head according to claim 3, characterized in that: The second moving mechanism (4) comprises a second adjusting servo motor (401) and a second connecting block (402); the second adjusting servo motor (401) is mounted in the inner cavity of the housing (1); a fourth threaded rod (403) is arranged at the output end of the second adjusting servo motor (401); a second slide rail (404) is arranged on one side of the fourth threaded rod (403); the fourth threaded rod (403) and the second slide rail (404) both longitudinally penetrate the second connecting block (402); and the contact surfaces of the fourth threaded rod (403) and the second slide rail (404) with the second connecting block (402) are respectively provided with threaded holes and slide holes; a second fixing platform (405) on one side of the second connecting block (402) is fixedly connected to the treatment head body (5).

5. The multi-directionally rotatable linear accelerator treatment head according to claim 4, characterized in that: The first connecting block (202) and the third threaded rod (203) form a threaded connection structure, the first connecting block (202) and the first slide rail (204) form a sliding structure, the second connecting block (402) and the fourth threaded rod (403) form a threaded connection structure, and the second connecting block (402) and the second slide rail (404) form a sliding structure.

6. The multi-directionally rotatable linear accelerator treatment head according to claim 5, characterized in that: The arc gear (603) and the rotating gear (604) form a gear meshing structure, the arc gear (603) and the fixed rod (607) and the arc surface slide groove (6012) form a sliding structure, the first threaded sleeve (6014) and the first threaded rod (6016) form a threaded connection structure, the second threaded sleeve (6015) and the second threaded rod (6018) form a threaded connection structure, and the arc slide groove (6020) and the cylindrical slider (6021) form a sliding structure.

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