Transfer equipment

Abstract

The utility model provides a transfer device which is suitable for transferring a roller of radiotherapy equipment, the roller is provided with an axial first end and an axial second end, the outside of the first end is integrally provided with a gear ring, the outside of the second end is provided with a mounting part extending outwards along the radial direction, the transfer device comprises a base, the bottom of the base is provided with advancing wheels; the supporting part is arranged at the upper part of the base, is suitable for being assembled with the roller and is used for supporting the roller; in the state that the roller is assembled on the transfer equipment, the first end and the second end extend out of the base, and the two radial sides of the roller extend out of the two sides of the supporting part.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of radiotherapy, especially to a transfer equipment of radiotherapy equipment. BACKGROUND

[0002] Ultra-high dose rate radiotherapy, also known as flash radiotherapy (Flash-RT or flash therapy), is a new radiotherapy technology, which is characterized by using very short time (usually between milliseconds and seconds) to complete high-dose (up to 40Gy / s or more) radiation of tumors, thereby obtaining unique biological effects. To meet the requirement of high radiation dose, the ultra-high dose rate radiotherapy equipment is configured with multiple beam modules. Based on the requirement of the convergence of multiple beam modules, the ultra-high dose rate radiotherapy equipment usually adopts a roller as the installation base, and the multiple beam modules are arranged around the axis of the roller. In addition to the beam modules, other functional modules need to be configured on the roller to meet the control requirements of the beam modules during operation of the ultra-high dose rate radiotherapy equipment.

[0003] To prevent radiation hazards of radioactive substances to workers and the external environment, strict shielding design is required in the working scene of using the ultra-high dose rate radiotherapy equipment. For example, a shielding channel needs to be set between the shielding room and the external environment. In the construction of the shielding channel, in addition to the basic civil engineering, anti-radiation design needs to be carried out and corresponding anti-shielding materials need to be configured. Therefore, the current shielding channel is usually designed to be narrow under the premise of meeting the use requirements, so as to simplify the anti-radiation design and reduce the construction cost as much as possible. However, this also limits the transportation and assembly of the ultra-high dose rate radiotherapy equipment, resulting in that the transportation of the ultra-high dose rate radiotherapy equipment is usually carried out in a split manner.

[0004] The roller, as the installation main body of the ultra-high dose rate radiotherapy equipment, needs to be designed to be large in mass and size to meet the requirements of load and structural strength. Therefore, the transportation of the roller through the shielding channel is greatly limited, and the roller may not be able to smoothly pass through the shielding channel if the conventional transfer equipment is used. UTILITY MODEL CONTENTS

[0005] To solve the above and other technical problems in the prior art, the utility model provides a transfer equipment, which is suitable for transporting the roller of the ultra-high dose rate radiotherapy equipment in the shielding channel.

[0006] The utility model provides a kind of transfer equipment, it is applicable to the roller of transfer radiotherapy equipment, the above-mentioned roller has the first end and the second end of axial, the outside of the above-mentioned first end is integrally provided with gear ring, the outside of the above-mentioned second end is provided with the mounting portion extending radially outward, the above-mentioned transfer equipment includes: base, the bottom of the above-mentioned base is provided with traveling wheel;And supporting portion, it is set to the upper portion of the above-mentioned base, it is applicable to with the above-mentioned roller assembly, and the above-mentioned roller is supported;Wherein, in the state that the above-mentioned roller is assembled in the above-mentioned transfer equipment, the above-mentioned first end and the above-mentioned second end are all by the above-mentioned base and protrude, and the radial two sides of the above-mentioned roller are by the two sides of the above-mentioned supporting portion and protrude.

[0007] According to the embodiment of the utility model, the width of the above-mentioned supporting portion is less than the diameter of the above-mentioned roller.

[0008] According to the embodiment of the utility model, the length of the above-mentioned base is less than the axial length of the above-mentioned roller.

[0009] According to the embodiment of the utility model, the above-mentioned base includes the first part and the second part of phase separation, the above-mentioned first part and the above-mentioned second part are all provided with the above-mentioned traveling wheel and the above-mentioned supporting portion;Wherein, the above-mentioned first part and the above-mentioned second part are arranged along the axial direction of the above-mentioned roller, and the distance between the two sides of the above-mentioned first part and the above-mentioned second part, as the length of the above-mentioned base.

[0010] According to the embodiment of the utility model, the above-mentioned first part and / or the above-mentioned second part are further provided with connecting portion, which is configured to be detachably connected with the above-mentioned roller through connecting piece.

[0011] According to the embodiment of the utility model, the transfer equipment further includes actuating portion, which is set on the above-mentioned base and is configured to drive the above-mentioned roller to rotate relative to the above-mentioned supporting portion around the axis.

[0012] According to the embodiment of the utility model, the above-mentioned actuating portion includes: transmission assembly, which is configured to engage with the above-mentioned gear ring of the above-mentioned roller;And drive assembly, which is configured to transmit torque to the above-mentioned transmission assembly to make the above-mentioned roller rotate.

[0013] According to the embodiment of the utility model, the upper portion of the above-mentioned supporting portion is provided with groove, which is configured to be embedded with the outer wall of the above-mentioned roller.

[0014] According to the embodiment of the utility model, the transfer equipment further includes traction portion, which is set on the front end and / or rear end of the above-mentioned base.

[0015] According to the embodiment of the utility model, the above-mentioned traction portion is detachably connected on the above-mentioned base.

[0016] According to the technical scheme of the illustrative embodiment of the utility model, when the roller is assembled on the transfer equipment, the first end and the second end of the roller in the axial direction and the two sides of the roller in the radial direction are all extended by the transfer equipment. Therefore, when the roller is transferred, the overall size of the roller and the transfer equipment in the axial direction and the radial direction of the roller is not increased, which is beneficial to the transfer equipment with the assembled roller to smoothly pass through the shielding passage, especially the corner part of the shielding passage. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the transfer equipment according to an illustrative embodiment of the utility model, showing the transferred roller;

[0018] Figure 2 is a schematic view of the transfer equipment assembled with the roller passing through the corner part of the shielding passage;

[0019] Figure 3 is Figure 1 a perspective view of the first part of the illustrative embodiment shown in the figure;

[0020] Figure 4 is Figure 1 a perspective view of the second part of the illustrative embodiment shown in the figure; and

[0021] Figure 5 is Figure 4 a partial enlarged view of the second part of the illustrative embodiment shown in the figure assembled with the roller.

[0022] In the drawings, the meanings of the reference signs are as follows:

[0023] 1, roller;

[0024] 11, body;

[0025] 12, mounting part;

[0026] 13, distributor fixing part;

[0027] 14, gear ring;

[0028] 15, rib plate;

[0029] 16, power source fixing part;

[0030] 17, lifting lug;

[0031] 2, transfer equipment;

[0032] 21, base;

[0033] 211, first part;

[0034] 212, second part;

[0035] 22, supporting part;

[0036] 23. actuating portion;

[0037] 231. transmission assembly;

[0038] 232. drive assembly;

[0039] 24. pulling portion;

[0040] 25. pull ring;

[0041] 26. cushion layer;

[0042] 27. connecting portion; and

[0043] 28. travel wheel. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to specific embodiments and drawings.

[0045] The terms used herein are merely used to describe specific embodiments, and are not intended to limit the present application. The terms "including," "containing," and the like used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0046] All terms used herein, including technical and scientific terms, have meanings commonly understood by one of ordinary skill in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having meanings consistent with the context of the present specification, and should not be interpreted in an idealized or overly formal manner.

[0047] In the case of using expressions similar to "at least one of A, B, and C, etc.", it should be generally construed that the meaning is understood by one of ordinary skill in the art as it is commonly used in the art. For example, "a system having at least one of A, B, and C" should include but not be limited to a system having A alone, a system having B alone, a system having C alone, a system having both A and B, a system having both A and C, a system having both B and C, and / or a system having A, B, and C, etc. In the case of using expressions similar to "at least one of A, B, or C, etc.", it should be generally construed that the meaning is understood by one of ordinary skill in the art as it is commonly used in the art. For example, "a system having at least one of A, B, or C" should include but not be limited to a system having A alone, a system having B alone, a system having C alone, a system having both A and B, a system having both A and C, a system having both B and C, and / or a system having A, B, and C, etc.

[0048] The roller is the main installation body of the ultra-high dose rate radiotherapy equipment. In order to meet the design requirements of the ultra-high dose rate radiotherapy equipment to complete the high dose (up to 40 Gy / s or more) radiation to the tumor in a very short time (usually between milliseconds and a few seconds), multiple functional modules need to be configured on the roller, such as multiple beam modules, power source modules, power combining modules and power divider modules (not shown in the figure).

[0049] Reference Figure 1 As shown, the body 11 of the roller 1 is constructed as a generally cylindrical cylindrical structure. To improve the structural strength of the body 11, its outer wall is provided with evenly spaced axial lines (such as...) along the body 11. Figure 1 (As shown in the Y direction) and circumferentially arranged stiffeners 15. In addition, to meet the assembly requirements of the above-mentioned functional modules, the roller 1 is also provided with a mounting part 12, a distributor fixing part 13, a gear ring 14, stiffeners 15 and a power source fixing part 16 and other mechanisms on the main body 11.

[0050] Among them, the first end of the body 11 (i.e., the first end of the roller 1, such as...) Figure 1 The outer wall of the lower left end (shown in the diagram) is integrally mounted with a gear ring 14 (including but not limited to assembly via riveting, welding, bolting, or other arbitrary methods). This gear ring 14 is suitable for cooperating with an external drive mechanism to synchronously rotate the roller 1 and the various functional modules mounted on the roller 1 under the torque output of the drive mechanism (such as a motor, reducer, gear set, synchronous belt, etc.). The second end of the body 11 (i.e., the second end of the roller 1, such as...) Figure 1 The upper right end (as shown) is provided with a mounting portion 12 that protrudes radially outward along the body 11. This mounting portion 12 is suitable for mounting a mounting plate (not shown) that extends further radially outward, so as to install multiple beam modules at circumferential intervals along the roller 1. A distributor fixing portion 13 and a power source fixing portion 16 are also provided in the middle of the body 11 between the first end and the second end. The distributor fixing portion 13 and the power source fixing portion 16 are located along the axial direction of the body 11 (e.g., along the upper right end). Figure 1 The Y-direction and / or axial spacing shown are configured to install power sources (such as pulse transformers, not shown in the figure) and power distributors (not shown in the figure) and other functional modules respectively, so that the ultra-high dose rate radiotherapy equipment has a reasonably balanced overall layout.

[0051] To prevent the radiation hazard of radioactive substances to the staff and the external environment, the above-mentioned super high dose rate radiotherapy equipment needs to be used in a special shielding space (such as a radiology department of a medical institution). The shielding space includes not only a shielding room but also a shielding passage arranged between the shielding room and the external environment. In addition to the basic civil construction, a corresponding shielding material (such as at least one of lead, iron, tungsten, boron and other composite shielding materials) needs to be configured on the civil construction when the shielding space is constructed. If the shielding passage is arranged too wide, the shielding space will occupy too much of the external environment, and the construction cost will be greatly increased (in a three-dimensional space, the increase of the width of the shielding space will increase the amount of shielding material required in the height and length).

[0052] Therefore, in the current use scenario, the shielding passage is arranged as narrow as possible under the premise of meeting the use requirements (i.e., allowing the wheelchair and the transfer bed to pass through), so as to reduce the construction cost of the shielding space and maintain the shielding effect of the shielding space. In addition, the shielding passage arranged in the shielding space is also often provided with a corner part, which can not only increase the path length between the radiation source and the external environment, but also reduce the straight-through effect of the shielding passage to achieve a better shielding effect. However, the design of the corner part further reduces the passability of the shielding passage.

[0053] At present, the transfer equipment used for the transportation of the above-mentioned roller 1 mainly adopts a hydraulic forklift or a hydraulic lifting tool. When the roller is assembled, the hydraulic forklift or the hydraulic lifting tool is located beside the roller 1 (such as one end in the axial direction or one side in the radial direction). In this way, the transfer equipment (i.e., the hydraulic forklift or the hydraulic lifting tool) carrying the roller has a large width or length as a whole, which makes it difficult to pass through the shielding passage (especially the corner position of the shielding passage). Therefore, the transfer equipment for transferring the roller 1 needs to be designed to improve the passability of the transfer equipment in a narrow space (such as the above-mentioned shielding passage).

[0054] Figure 1 It is a perspective view of a transfer equipment according to a schematic embodiment of the present application, which shows a roller being transferred.

[0055] According to the transfer equipment provided by the present application, Figure 1 as shown, it comprises a base 21 and a supporting part 22. The bottom of the base 21 is provided with traveling wheels 28. The supporting part 22 is arranged on the upper part of the base 21 and is suitable for assembling with the roller 1 and supporting the roller 1. In the state that the roller 1 is assembled on the transfer equipment, the first end and the second end are both extended from the base 21, and the two sides of the roller 1 in the radial direction are extended from the two sides of the supporting part 22.

[0056] Figure 2 It is a schematic view of the transfer equipment assembled with the roller passing through the corner part of the shielding passage.

[0057] Reference Figure 2 The section describing the corner of the shielded passageway through which the transfer equipment passes is as follows: Figure 2 As shown, the width of the shielded channel is configured as x1, and the width of the corner portion is configured as x2, that is, x2 = Accordingly, the dimensions of roller 1 are L1*W1.

[0058] Due to the limitations of the size and shape of roller 1, when roller 1 passes through the corner portion of the shielding channel, if the transfer device 2 is located on the side of the roller (e.g., the radial side, it can be considered as...) Figure 1 The outer side in the X direction (or the end, such as the axial side) can be considered as... Figure 1 (Outer side of the Y direction in the middle), which would result in the overall structure of the transfer device 2 equipped with roller 1 having a large dimension in width or length, thus making it impossible to pass through as Figure 2 The corner area shown. Based on Figure 1 The transfer device 2 shown, when it carries the roller 1, due to the first and second ends of the roller 1 in the axial direction (such as...) Figure 1 The lower left and upper right ends shown), as well as both radial sides of the roller 1, extend from the transfer device 2 (i.e., as shown). Figure 2 In the vertical projection shown, the projection of roller 1 completely covers the projection of transfer device 2. Therefore, the transfer device 2 carrying roller 1 does not increase the overall length and width of the structure, allowing roller 1 to pass smoothly. Figure 2 The shielded passage shown (especially at the corners) improves the accessibility of the transfer equipment 2.

[0059] like Figure 1 and Figure 2 As shown, the width of the support portion 22 is configured to be smaller than the diameter of the roller 1.

[0060] According to embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the length of the base 21 is configured to be less than the axial length of the roller 1.

[0061] In an illustrative implementation, such as Figure 1 As shown, the transfer device 2 includes a base 21, which can be considered as a chassis. Furthermore, the base 21 of the transfer device 2 is provided with a support portion 22 to support the device in the height direction (e.g., ...). Figure 1 The roller 1 is supported by the Y-direction shown, and the roller 1 can be moved relative to the working surface (such as the ground of the shielded channel) by the transfer equipment 2, so as to transport the roller 1 from the external environment to the shielded room through the shielded channel.

[0062] In one illustrative embodiment, such as Figure 1As shown, the two ends of the base 21 along its length (i.e., as shown) Figure 1 The two ends of the Y direction shown are respectively provided with support portions 22 protruding from the base 21. In detail, the support portions 22 are, but are not limited to, configured as beam-type structures, specifically including but not limited to being formed by welding plate-shaped profiles (such as steel) (of course, they can also be riveted or integrally formed) to increase the contact area between the support portions 22 and the roller 1 and to improve the structural strength of the support portions 22.

[0063] In one illustrative embodiment, such as Figure 1 As shown, the length of base 21 (i.e. Figure 1 The L2 shown should be configured to be less than the length of roller 1 (i.e., Figure 2 As shown in L1), that is, L2 < L1; further, the width of the support portion 22 (i.e., as shown in L1) Figure 1 The diameter of W2 shown should be smaller than that of roller 1 (i.e., Figure 2 As shown in W1). In this way, when the roller 1 is assembled with the transfer device 2, the first and second ends of the roller 1 in the axial direction (such as the two ends in the Y direction) and the two sides of the roller 1 in the radial direction (such as the two sides in the X direction) can all extend out of the transfer device 2, thereby achieving the purpose of improving the passability of the transfer device 2.

[0064] According to embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the base 21 includes a first part 211 and a second part 212 that are separated from each other. Both the first part 211 and the second part 212 are provided with a traveling wheel 28 and a support part 22. The first part 211 and the second part 212 are arranged at intervals along the axial direction of the roller 1, and the distance between the opposite sides of the first part 211 and the second part 212 is the length of the base 21.

[0065] In one illustrative embodiment, the travel wheels 28 include, but are not limited to, casters. Accordingly, at least a portion of the travel wheels 28 are also equipped with locking mechanisms to lock (e.g., lock) the travel wheels 28 when the transfer device 2 stops, thereby restricting the movement of the transfer device 2 (and the roller 1).

[0066] In an illustrative implementation, such as Figure 1 As shown, the base 21 adopts a split structure, which is suitable for use with the first end of the roller 1 (such as...). Figure 1 The first part 211, which is attached to the lower left end (i.e., the end where the gear ring 14 is mounted), and the second end (as shown) of the roller 1 are also suitable for mounting. Figure 1The second part 212 is assembled with the upper right end (i.e., the end where the mounting part 12 is assembled). Specifically, both the first part 211 and the second part 212 are provided with support parts 22 to support the first and second ends of the roller 1, respectively. When the roller 1 is assembled with the first part 211 and the second part 212, the extension direction of the roller 1's axis should be configured to be approximately parallel to the horizontal plane, so that the loads on the first part 211 and the second part 212 are all in the vertical direction (i.e., there is no component inclined in the vertical direction), thereby preventing the roller 1 from tipping over during transport (such as tipping forward or backward due to inertia). It should be understood that the embodiments of this utility model are not limited thereto.

[0067] For example, the first part 211 and the second part 212 can also be integrally formed, that is, the first part 211 and the second part 212 are along the length direction (i.e. Figure 1 Connected in the Y direction (as shown) (e.g., using beam structures extending along the length direction).

[0068] In this embodiment, the integrally formed first part 211 and second part 212 have better overall integrity and structural strength, which helps to prevent the transfer device 2 from tipping over and / or the connection from failing when the roller 1 moves. The separate first part 211 and second part 212 have better flexibility than the integrally formed method, which can prevent interference between the structure of the roller 1 (such as the mounting part 12, the distributor fixing part 13, the toothed ring 14, the stiffener 15 and the power source fixing part 16, etc.) and the base 21. When the first part 211 and / or the second part 212 are assembled with the roller 1, the assembly position of the first part 211 and the second part 212 relative to the roller 1 can be easily adjusted.

[0069] According to embodiments of the present invention, such as Figure 1 As shown, the transfer device 1 also includes an actuator 23 disposed on the base 21. The actuator 23 is configured to drive the roller 1 to rotate about an axis relative to the support 22.

[0070] According to embodiments of the present invention, such as Figure 1 As shown, the actuation unit 23 includes a transmission assembly 231 and a drive assembly 232. The transmission assembly 231 is configured to mesh with the gear ring 14 of the roller 1. The drive assembly 232 is configured to transmit torque to the transmission assembly 231 to rotate the roller 1.

[0071] In an illustrative implementation, such as Figure 1 As shown, the actuating part 23 is disposed on the side of the first part 211 (i.e., as shown in the figure). Figure 1 (as shown on one side in the X direction), and the transmission assembly 231 of the actuator 23 is axially related to the gear ring 14 (e.g., on one side in the X direction), and the gear ring 14 is axially related to the transmission assembly 231 of the actuator 23. Figure 1The Y direction) position to the corresponding, and the ring gear 14 is engaged. In detail, the transmission assembly 231 can adopt as Figure 1 The gear or gear set (not shown in the Figure 1 ) in the figure). Further, the drive assembly 232 is in driving connection with the transmission assembly 231, to drive the ring gear 14 (and the drum 1) to rotate circumferentially relative to the base 21 through the transmission assembly 231. Wherein, the drive assembly 232 includes but is not limited to adopt a handle to extend the force arm of the shaft of the transmission assembly 231, so as to facilitate the user to drive the ring gear 14 (and the drum 1) to rotate. It should be understood that the embodiments of the present application are not limited thereto.

[0072] For example, the drive assembly 232 can also adopt electric equipment such as motor, speed reducer, etc., to facilitate use.

[0073] Or, for example, the actuating part 23 can also be provided with a detection assembly, such as an encoder (and the corresponding drum 1 should be provided with a code disc), etc., to accurately obtain the rotation angle of the drum 1 when the ring gear 14 (and the drum 1) is driven to rotate by the drive assembly, so as to know the circumferential position of the drum 1 relative to the base 21.

[0074] Such an embodiment, as Figure 1 shown, the body 11 of the drum 1 outside is based on the functional module to be assembled, and the corresponding installation part 12, dispenser fixing part 13 and power source fixing part 16 and other heterogeneous connection end. These connection ends are protruding from the body 11, therefore, when the drum 1 is transported, the above-mentioned heterogeneous connection end may interfere with the basic structure (such as wall and / or ceiling structure) in the shielding channel, so as to hinder the transportation of the drum 1. Therefore, after the drum 1 is hoisted on the transportation equipment, and in the process of transporting the drum 1, if the basic structure in the shielding channel hinders the drum 1, the drum 1 can be driven to rotate circumferentially relative to the transportation equipment 2 (such as Figure 3 shown, the lateral support drum 1) by the actuating part 23, so as to avoid the above-mentioned basic structure. And after the drum 1 is transported to the installation position (such as in the shielding room), the drum 1 is driven to rotate by the actuating part 23 again, so that the drum 1 is rotated to the position that the lifting lug 17 is reset to the top, so as to facilitate the hoisting of the external hoisting equipment.

[0075] Figure 1 is Figure 4 the first part of the schematic embodiment of the perspective view. Figure 1 is Figure 5 the second part of the schematic embodiment of the perspective view. Figure 4 is Figure 1 the second part of the schematic embodiment of the second part of the drum assembly is enlarged.

[0076] According to the embodiments of the present application, referring to Figure 3 ,Figure 4 、 Figure 5 and Figure 3 As shown in Figs. 21 8, 21 9 and 220, the upper portion of the supporting portion 22 is provided with a recess configured to be fitted with the outer wall of the drum 1.

[0077] In an exemplary embodiment, as shown in Figs. 22 1 and 222, the upper end surface of the supporting portion 22 provided with the first portion 21 1 and the second portion 212 is provided with a recess. In detail, the curvature of the bottom of the recess is configured to be adapted to the curvature of the outer edge of the assembly position of the drum 1, so that the recess is fitted with the drum when the drum 1 is assembled to the first portion 21 1 and the second portion 212. Further, a pad 26 is further provided in the recess, so as to be provided between the supporting portion 22 and the drum 1 when the drum 1 is fitted in the recess. The pad 26 includes but is not limited to being made of felt, sponge, rubber and other soft materials, so as to prevent the portion of the drum 1 cooperating with the supporting portion 22 from being scratched. Figure 4 Figure 1 In an exemplary embodiment, as shown in Figs. 22 1 and 222, the upper end surface of the supporting portion 22 provided with the first portion 21 1 and the second portion 212 is provided with a recess. In detail, the curvature of the bottom of the recess is configured to be adapted to the curvature of the outer edge of the assembly position of the drum 1, so that the recess is fitted with the drum when the drum 1 is assembled to the first portion 21 1 and the second portion 212. Further, a pad 26 is further provided in the recess, so as to be provided between the supporting portion 22 and the drum 1 when the drum 1 is fitted in the recess. The pad 26 includes but is not limited to being made of felt, sponge, rubber and other soft materials, so as to prevent the portion of the drum 1 cooperating with the supporting portion 22 from being scratched.

[0078] According to the embodiments of the present application, as shown in Figs. 23 1, 23 2, 23 3, 23 4, 23 5 and 23 6, the first portion 21 1 and / or the second portion 212 is further provided with a connecting portion 27. The connecting portion 27 is configured to be detachably connected with the drum 1 through a connecting member. Figure 3 、 Figure 4 、 Figure 5 and Figure 3 According to the embodiments of the present application, as shown in Figs. 23 1, 23 2, 23 3, 23 4, 23 5 and 23 6, the first portion 21 1 and / or the second portion 212 is further provided with a connecting portion 27. The connecting portion 27 is configured to be detachably connected with the drum 1 through a connecting member.

[0079] In an exemplary embodiment, as shown in Figs. 22 1 and 222, the upper end surface of the supporting portion 22 provided with the first portion 21 1 and the second portion 212 is provided with a recess. In detail, the curvature of the bottom of the recess is configured to be adapted to the curvature of the outer edge of the assembly position of the drum 1, so that the recess is fitted with the drum when the drum 1 is assembled to the first portion 21 1 and the second portion 212. Further, a pad 26 is further provided in the recess, so as to be provided between the supporting portion 22 and the drum 1 when the drum 1 is fitted in the recess. The pad 26 includes but is not limited to being made of felt, sponge, rubber and other soft materials, so as to prevent the portion of the drum 1 cooperating with the supporting portion 22 from being scratched. Figure 4 Figure 5 In an exemplary embodiment, as shown in Figs. 22 1 and 222, the upper end surface of the supporting portion 22 provided with the first portion 21 1 and the second portion 212 is provided with a recess. In detail, the curvature of the bottom of the recess is configured to be adapted to the curvature of the outer edge of the assembly position of the drum 1, so that the recess is fitted with the drum when the drum 1 is assembled to the first portion 21 1 and the second portion 212. Further, a pad 26 is further provided in the recess, so as to be provided between the supporting portion 22 and the drum 1 when the drum 1 is fitted in the recess. The pad 26 includes but is not limited to being made of felt, sponge, rubber and other soft materials, so as to prevent the portion of the drum 1 cooperating with the supporting portion 22 from being scratched.

[0080] Based on the above-mentioned first portion 21 1 and the second portion 212, when assembled with the drum 1, the two portions of the supporting portion 22 of the first portion 21 1 are respectively supported at the front end and the rear end of the gear ring 14 provided on the drum 1, so that the gear ring 14 protruding from the body 1 1 is accommodated between the two spaced portions of the supporting portion 22. The two portions of the supporting portion 22 of the second portion 212 are located at the connecting end (such as the connecting end 15 shown in Fig. 1) provided on the drum 1. Figure 3 ​​The front end and the rear end of the I-shaped steel form a joint, and the joint corresponds to the connecting portion 24, so that the second portion 212 is connected to the roller 1 through a connecting member (such as a bolt or the like), thereby limiting the circumferential rotation between the roller 1 and the base 21 (of course, the axial movement of the roller 1 relative to the base 21 can also be limited, but since the roller 1 has a large self-weight, when the roller 1 is supported in the groove formed by the supporting portion 22, the axial displacement can be basically limited by the friction between the roller 1 and the supporting portion 22). It should be understood that the embodiments of the present application are not limited thereto.

[0081] For example, the connecting portion 24 can also be arranged on the first portion 211, or the connecting portion 24 can be arranged on both the first portion 211 and the second portion 212.

[0082] According to the embodiments of the present application, as shown in Figure 4 and Figure 3 , the transfer device 2 further comprises a pulling portion 24. The pulling portion 24 is arranged at the front end and / or the rear end of the base 21.

[0083] According to the embodiments of the present application, as shown in Figure 4 and Figure 1 , the pulling portion 24 is detachably connected to the base 21.

[0084] In an exemplary embodiment, as shown in Figure 3 , Figure 4 and Figure 1 , the pulling portion 24 is arranged at the two ends (such as the two ends in the Y direction as shown in Figure 2 ) of the first portion 211 and the second portion 212 which are away from each other. In detail, the pulling portion 24 includes but is not limited to a plug-in type pull rod handle, so as to facilitate the user to pull the transfer device 2 (and the roller 1) to move synchronously when the pulling portion 24 is assembled on the base 21 (i.e. the first portion 211 and the second portion 212).

[0085] For example, when the transfer device 2 needs to be pulled forward (such as moving from the right side to the left side of the shielding channel as shown in Figure 2 ), the pulling portion 24 (i.e. the plug-in type pull rod handle) can be arranged only on the first portion 211; similarly, when the transfer device 2 needs to be pulled backward (such as moving from the left side to the right side of the shielding channel as shown in Figure 1 ), the pulling portion 24 (i.e. the plug-in type pull rod handle) can be arranged only on the second portion 212. In this way, the overall length of the transfer device 2 (including the pulling portion 24) can be shortened, so as to avoid that the overall length of the transfer device 2 is too long, thereby shortening the turning radius of the transfer device 2.

[0086] In some exemplary embodiments, as shown in Figure 3 , Figure 4 and ​As shown, the support part 22 of the transfer device 2 is further provided with a pull ring 25. In this way, when the user pulls the transfer device is hindered, the transfer device 2 can also be pushed from the side of the transfer device 2 through the pull ring 25 to assist the transfer device to turn (or forward and backward). It should be understood that the embodiments of the present application are not limited thereto.

[0087] For example, the traction part 24 can also be provided on the traveling wheels 28 arranged by the first part 211 and / or the second part 212 to drive the traveling wheels 28 to roll. In detail, the traveling wheels 28 can be arranged with a driving part to actively roll the traveling wheels 28 to translate the transfer device 2.

[0088] In an illustrative embodiment, the first part 211 and / or the second part 212 includes a pair of traveling wheels, and each of the two traveling wheels 28 in each pair of traveling wheels is arranged with a motor to rotate at the same speed or at different speeds, thereby actively pulling the transfer device 2 to travel.

[0089] In another illustrative embodiment, the traveling wheels 28 can also use a MagneMotion wheel or other special-shaped wheel, in addition to actively pulling the transfer device 2, to have other functions such as reducing the turning radius, to further facilitate the transfer of the transfer device 2 to the drum 1.

[0090] It should be further noted that the directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only with reference to the drawings, and are not intended to limit the scope of protection of the present application. Throughout the drawings, the same elements are represented by the same or similar reference numerals. When it may cause confusion to the understanding of the present application, the conventional structure or configuration will be omitted.

[0091] The embodiments of the present application have been described above. However, these embodiments are only for illustrative purposes, and are not intended to limit the scope of the present application. Although each embodiment is described above, this does not mean that the measures in each embodiment cannot be used advantageously in combination. The scope of the present application is defined by the appended claims and their equivalents. Without departing from the scope of the present application, those skilled in the art can make various substitutions and modifications, which should all fall within the scope of the present application.

Claims

1. A transfer device suitable for transferring a drum (1) of a radiotherapy device, the drum (1) having an axially first end and a second end, an outer part of the first end being integrally provided with a gear ring (14), an outer part of the second end being provided with a mounting portion (12) extending radially outwardly, characterized in that, The transfer device comprises: a base (21) provided with traveling wheels (28) at the bottom thereof; and a supporting part (22) provided at the upper part of the base (21) and adapted to be assembled with the roller (1) and support the roller (1); wherein, in the state that the roller (1) is assembled with the transfer device, the first end and the second end are both extended by the base (21), and the two sides of the roller (1) in the radial direction are extended by the two sides of the supporting part (22).

2. The transfer apparatus of claim 1, wherein, The width of the supporting part (22) is less than the diameter of the roller (1).

3. The transfer apparatus of claim 1, wherein, The length of the base (21) is less than the axial length of the roller (1).

4. The transfer apparatus of claim 3, wherein, The base (21) comprises a first part (211) and a second part (212) separated from each other, and the first part (211) and the second part (212) are both provided with the traveling wheels (28) and the supporting part (22); wherein, the first part (211) and the second part (212) are arranged in the axial direction of the roller (1) and are spaced apart from each other, and the distance between the two sides of the first part (211) and the second part (212) away from each other is the length of the base (21).

5. The transfer apparatus of claim 4, wherein, The first part (211) and / or the second part (212) is further provided with a connecting part (27) configured to be detachably connected with the roller (1) through a connecting member.

6. The transfer apparatus according to any one of claims 1 to 5, wherein Further comprising an actuating part (23) provided on the base (21) and configured to drive the roller (1) to rotate relative to the supporting part (22) around an axis.

7. The transfer apparatus of claim 6, wherein, The actuating part (23) comprises: a transmission assembly (231) configured to engage with the gear ring (14) of the roller (1); and a driving assembly (232) configured to transmit torque to the transmission assembly (231) to rotate the roller (1).

8. The transfer apparatus according to any one of claims 1 to 5, wherein The upper part of the supporting part (22) is provided with a groove configured to be fitted with the outer wall of the roller (1).

9. The transfer apparatus according to any one of claims 1 to 5, wherein Further comprising a traction part (24) provided at the front end and / or the rear end of the base (21).

10. The transfer device of claim 9, wherein, The traction part (24) is detachably connected to the base (21).

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