Water tank test main body for simulating human body ray dose

Abstract

The utility model belongs to the technical field of quality inspection and quality control of tumor radiotherapy, and particularly relates to a water tank test main body for simulating human body ray dose, which comprises a movable cart, a movable lifting platform and a water tank test main body, the movable lifting platform is mounted at the top of the movable cart, and the water tank test main body is mounted at the top of the movable lifting platform. Through the left-right moving assembly, the lifting assembly and the front-back moving assembly, left-right movement, lifting movement and front-back movement of the dose detector in the water tank testing main body are achieved, all positions in the water tank testing main body are measured, and a third mechanical absolute encoder is arranged in the left-right moving assembly. A first mechanical absolute encoder is arranged in the lifting assembly, and a second mechanical absolute encoder is arranged in the front-back moving assembly, so that real-time feedback is carried out when the coordinate position of the dose detector changes, and under the normal use condition, the current position can be read in real time for closed-loop control, and the accuracy of the testing process is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tumor radiotherapy quality inspection product control technical field, concretely is a water tank test main part of simulation human body ray dose. BACKGROUND

[0002] At present, the tumor radiotherapy quality inspection product control field needs to accurately measure the ray dose of each position in the spatial coordinate, then through the equipment to carry the finger type ionization chamber to measure the radiation dose of each position by moving in a certain space. In order to simulate the human body structure, the attenuation of the ray dose in the human body needs to be simulated in this space, since the human body density is basically equivalent to water, so the whole measurement process needs to move in the water-filled environment to achieve the actual effect of equivalent human body treatment. Because the shape and size of tumor vary from person to person, the spatial three-dimensional dose distribution needs to be accurately corrected repeatedly in the treatment plan, therefore, the measurement position of the ray needs to have more accurate requirements, so as to better achieve the purpose of accurately eliminating the tumor without harming the healthy organs.

[0003] The dose detector of the existing simulation human body ray dose measurement equipment changes the measurement position in the water tank test main body by moving left and right, moving forward and backward and lifting, but only contains the travel switch feedback position in the initial position, and there is no actual position feedback in the actual movement process, which is easy to cause the deviation of the measurement result, in order to improve the measurement accuracy of the existing simulation human body ray dose measurement equipment, the utility model provides a water tank test main body of simulation human body ray dose. UTILITY MODEL CONTENTS

[0004] In view of the deficiency of the prior art, the utility model provides a water tank test main body of simulation human body ray dose, through left and right moving assembly, lifting assembly and forward and backward moving assembly, realize the left and right movement, lifting movement and forward and backward movement of the dose detector in the water tank test main body, measure each position in the water tank test main body, and mechanical type absolute encoder three is arranged in the left and right moving assembly, mechanical type absolute encoder one is arranged in the lifting assembly, and mechanical type absolute encoder two is arranged in the forward and backward moving assembly, so as to carry out real-time feedback when the coordinate position of the dose detector changes, to ensure the accuracy of the test process, and solve the background problem.

[0005] In order to achieve the above object, the utility model discloses a water tank test main part of simulation human body ray dose through the following technical solutions to be realized: a kind of water tank test main body of simulation human body ray dose, including mobile trolley, mobile lifting platform and water tank test main body, the mobile lifting platform is installed at the top of mobile trolley, the water tank test main body is installed at the top of mobile lifting platform, the top front side of water tank test main body is fixedly installed with mounting plate one, the rear side of mounting plate one is fixedly installed with guide rail one, the guide rail one is slidably installed with sliding block one, the rear side of sliding block one is fixedly connected with fixed plate one, the bottom side of fixed plate one is fixedly connected with mounting plate two, the bottom side of mounting plate two is fixedly installed with guide rail three, the guide rail three is slidably installed with sliding block three, the rear side of sliding block three is fixedly connected with fixed plate two, the rear side of fixed plate two is fixedly installed with guide rail four, the guide rail four is slidably installed with sliding block four, the top side of sliding block four is fixedly connected with fixed plate three, the top side of fixed plate three is installed with dose detector, the front side of mounting plate one is installed with left-right moving assembly, the fixed plate one is also installed with lifting assembly and front-back moving assembly, the right side in the inside of water tank test main body is provided with drainage assembly.

[0006] Preferably, left-right moving assembly includes driving motor three, the driving motor three is fixedly installed at the left part of the front side of mounting plate one, the front side of mounting plate one is also rotatably installed with ball screw one, the output shaft end of driving motor three is fixedly connected with synchronous pulley three, the left part of ball screw one is fixedly sleeved with synchronous pulley four, synchronous belt two is tightly sleeved between synchronous pulley three and synchronous pulley four, nut one is threadedly sleeved on ball screw one, the rear side of nut one is fixedly connected with the front side of sliding block one.

[0007] Preferably, lifting assembly includes driving motor one, the top side of fixed plate one is fixedly connected with mounting plate three, the driving motor one is fixedly installed at the top right side of mounting plate three, the bottom of guide rail three is fixedly connected with sliding block two, the bottom side in the inside of water tank test main body is fixedly installed with guide rail two, sliding block two is slidably installed on guide rail two, ball screw two is rotatably installed between the right side of mounting plate two and the right side of sliding block two, nut two is fixedly connected with the right side of sliding block three, nut two is threadedly sleeved on ball screw two, the output shaft end of driving motor one is fixedly connected at the top end of ball screw two.

[0008] Preferably, the front-back moving assembly includes a driving motor two, the driving motor two is fixedly installed at the top left side of the mounting plate three, the left side of the mounting plate two is rotationally installed with a spline shaft, the left side of the guide rail four is rotationally installed with a ball screw three, the ball screw three is threadedly sleeved with a nut three, the top side of the nut three is fixedly connected to the bottom side of the fixed plate three, the front end of the ball screw three penetrates through the sliding block three and is fixedly connected with a bevel gear two, the spline shaft is slidably sleeved with a spline sliding sleeve, the bottom side of the spline sliding sleeve is fixedly connected with a bevel gear one, the bevel gear one is engaged with the bevel gear two, the top side of the spline sliding sleeve is provided with a stainless steel spring, and the top side of the stainless steel spring abuts against the inner top side of the sliding block three.

[0009] Preferably, the drainage assembly includes a siphon box, a drainage groove is formed in the inner bottom side of the water tank test body, the siphon box is fixedly connected to the bottom side of the drainage groove, a drainage opening is formed in the right bottom of the water tank test body, one end of the drainage opening is communicated with the siphon box, and a plurality of water leakage slots are formed in the bottom of the siphon box.

[0010] Preferably, the front left side of the mounting plate one is also fixedly installed with a mechanical absolute encoder three, the input shaft end of the mechanical absolute encoder three is fixedly connected to the left end of the ball screw one, the top left and right sides of the mounting plate three are respectively fixedly installed with a mechanical absolute encoder two and a mechanical absolute encoder one, the input shaft ends of the mechanical absolute encoder two and the mechanical absolute encoder one are respectively fixedly connected with a synchronous pulley two and a synchronous pulley six, the top end outer surfaces of the spline shaft and the ball screw two are respectively fixedly sleeved with a synchronous pulley one and a synchronous pulley five, the synchronous pulley one and the synchronous pulley two are tightly sleeved with a synchronous belt one, and the synchronous pulley five and the synchronous pulley six are tightly sleeved with a synchronous belt three.

[0011] Preferably, the bottom of the water tank test body is fixedly connected with a handle.

[0012] Preferably, the guide rail one, the guide rail three and the guide rail four are all provided with a scale.

[0013] The utility model provides a water tank test body of simulation human body ray dose compares with prior art has the following beneficial effects:

[0014] 1. The water tank test body for simulating human body radiation dose is characterized by comprising a left-right moving assembly installed on the front side of the mounting plate one, a lifting assembly and a front-rear moving assembly installed on the fixed plate one, and realizing left-right movement, lifting movement and front-rear movement of the dose probe in the water tank test body, measuring each position in the water tank test body, and setting a mechanical absolute encoder three in the left-right moving assembly, a mechanical absolute encoder one in the lifting assembly and a mechanical absolute encoder two in the front-rear moving assembly, thereby feeding back in real time when the coordinate position of the dose probe changes, and the mechanical absolute encoder can feed back the actual position after power-off and re-power-on, and can read the current position in real time under normal use conditions to realize closed-loop control, thereby ensuring the accuracy of the test process.

[0015] 2. The water tank test body for simulating human body radiation dose is characterized by comprising a drainage assembly arranged on the right side of the inside of the water tank test body, a plurality of water leakage slots formed through the bottom of the siphon box, and a drainage groove arranged around the bottom side of the inside of the water tank test body, thereby realizing siphon effect and achieving the effect of rapid drying. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the utility model main part;

[0017] Figure 2 It is a top structure schematic diagram of the water tank test body of the utility model;

[0018] Figure 3 It is a sectional structure schematic diagram of the water tank test body of the utility model;

[0019] Figure 4 It is a left-right moving assembly structure schematic diagram of the utility model;

[0020] Figure 5 It is a rear view structure schematic diagram of the lifting assembly and the front-rear moving assembly of the utility model;

[0021] Figure 6 It is a left view structure schematic diagram of the lifting assembly and the front-rear moving assembly of the utility model;

[0022] Figure 7 It is a structure schematic diagram of the utility model Figure 2 enlarged view of position A;

[0023] Figure 8 It is a structure schematic diagram of the utility model Figure 3 enlarged view of position B;

[0024] Figure 9 It is a structure schematic diagram of the utility model Figure 6 enlarged view of position C;

[0025] Figure 10The utility model discloses Figure 6 The structure amplification schematic view of D place.

[0026] In the figure: 1, mobile trolley 2, mobile lifting platform 3, water tank test main body 4, handle 5, mounting plate one 6, drainage groove 7, guide rail one 8, sliding block one 9, fixed plate one 10, mounting plate two 11, nut one 12, ball screw one 13, scale 14, guide rail two 15, sliding block two 16, guide rail three 17, ball screw two 18, spline shaft 19, sliding block three 20, fixed plate two 21, guide rail four 22, nut two 23, mounting plate three 24, drive motor one 25, drive motor two 26, mechanical absolute encoder one 27, mechanical absolute encoder two 28, synchronous pulley one 29, synchronous pulley two 30, synchronous belt one 31, mechanical absolute encoder three 32, drive motor three 33, synchronous pulley three 34, synchronous pulley four 35, synchronous belt two 36, siphon box 37, water leakage seam 38, drainage outlet 39, spline sliding sleeve 40, bevel gear one 41, bevel gear two 42, stainless steel spring 43, nut three 44, ball screw three 45, dose probe 46, sliding block four 47, fixed plate three 48, synchronous pulley five 49, synchronous pulley six 50, synchronous belt three. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work are within the protection scope of the utility model.

[0028] Please refer to Figures 1-10The utility model provides a technical scheme: a water tank test main part of simulation human body ray dose, including mobile trolley 1, mobile lifting platform 2 and water tank test main part 3, mobile lifting platform 2 installs at the top of mobile trolley 1, water tank test main part 3 installs at the top of mobile lifting platform 2, the top front side fixed mounting of water tank test main part 3 has mounting plate no. 5, the rear side fixed mounting of mounting plate no. 5 has guide rail no. 7, the sliding installation of guide rail no. 7 has slider no. 8, the rear side fixed connection of slider no. 8 has fixed plate no. 9, the bottom side fixed connection of fixed plate no. 9 has mounting plate no. 10, the bottom side fixed mounting of mounting plate no. 10 has guide rail no. 3 16, the sliding installation of guide rail no. 3 16 has slider no. 3 19, the rear side fixed connection of slider no. 3 19 has fixed plate no. 2 20, the rear side fixed mounting of fixed plate no. 2 20 has guide rail no. 4 21, the sliding installation of guide rail no. 4 21 has slider no. 4 46, the top side fixed connection of slider no. 4 46 has fixed plate no. 3 47, the top side mounting of fixed plate no. 3 47 has dose detector 45, the front side mounting of mounting plate no. 5 has left and right moving assembly, still be installed on fixed plate no. 9 and have lifting assembly and front and back moving assembly, the inside right side of water tank test main part 3 is provided with drainage assembly.

[0029] The water tank test main part of simulation human body ray dose uses, by pushing mobile trolley 1 to move equipment, by mobile lifting platform 2 realizes the mobile lifting of water tank test main part 3, is provided with dose detector 45 in water tank test main part 3 and measures the ray dose, and by installing left and right moving assembly on the front side of mounting plate no. 5, still be installed on fixed plate no. 9 and have lifting assembly and front and back moving assembly, realize the left and right movement, lifting and front and back movement of dose detector 45 in water tank test main part 3 inside to measure each position in water tank test main part 3 inside.

[0030] Left and right moving assembly includes drive motor no. 3 32, drive motor no. 3 32 fixed mounting is at the left part of the front side of mounting plate no. 5, the front side of mounting plate no. 5 still rotates and is installed with ball screw no. 1 12, the output shaft end fixed connection of drive motor no. 3 32 has synchronous pulley no. 3 33, the left part fixed sleeve of ball screw no. 1 12 has synchronous pulley no. 4 34, synchronous pulley no. 3 33 and synchronous pulley no. 4 34 are tensioned and are connected with synchronous belt no. 2 35 between sleeve, the nut no. 1 11 of ball screw no. 1 12 is screwed and is set, the rear side of nut no. 1 11 is fixedly connected with the front side of slider no. 8.

[0031] Left and right moving assembly uses, by drive motor no. 3 32 rotates synchronous pulley no. 3 33, thereby rotates the synchronous pulley no. 4 34 that is tensioned and is connected with synchronous belt no. 2 35 through synchronous belt no. 2 35, further rotates ball screw no. 1 12, so that the nut no. 1 11 that is screwed and is set on ball screw no. 1 12 moves left and right, thereby drives slider no. 8 to slide left and right on guide rail no. 1 7, further drives fixed plate no. 1 9 and mounting plate no. 2 10 to move left and right.

[0032] The lifting assembly comprises a driving motor 24, the top side of the fixed plate 9 is fixedly connected with a mounting plate 23, the driving motor 24 is fixedly installed at the top right side of the mounting plate 23, the bottom of the guide rail 3 is fixedly connected with a sliding block 2, the inside bottom of the water tank test main body 3 is fixedly installed with a guide rail 2, the sliding block 2 is slidingly installed on the guide rail 2, the right side of the mounting plate 2 is rotatably installed with a ball screw 17 between the right side of the sliding block 2, the right side of the sliding block 3 is fixedly connected with a nut 22, the nut 22 is threadedly sleeved on the ball screw 2, and the output shaft end of the driving motor 24 is fixedly connected with the top end of the ball screw 2.

[0033] When the lifting assembly is used, the fixed plate 9 moves left and right to drive the mounting plate 23 and the guide rail 3 to move left and right, and then drive the sliding block 2 to slide left and right on the guide rail 2, and drive the nut 22 threadedly sleeved on the ball screw 2 to move up and down by rotating the ball screw 2 through the driving motor 24, and then drive the sliding block 3 fixedly connected with the nut 2 to slide up and down on the guide rail 3, and drive the guide rail 4 fixedly connected with the sliding block 3 through the fixed plate 2 to move up and down.

[0034] The front and back moving assembly comprises a driving motor 25, the driving motor 25 is fixedly installed at the top left side of the mounting plate 3, the left side of the mounting plate 2 is rotatably installed with a spline shaft 18 between the left side of the sliding block 2, the left side of the guide rail 4 is rotatably installed with a ball screw 3, the ball screw 3 is threadedly sleeved with a nut 4, the top side of the nut 4 is fixedly connected with the bottom side of a fixed plate 7, the front end of the ball screw 3 penetrates through the sliding block 3 and is fixedly connected with a bevel gear 2, the spline sleeve 9 is slidingly sleeved on the spline shaft 8, the bottom side of the spline sleeve 9 is fixedly connected with a bevel gear 1, the bevel gear 1 is engaged with the bevel gear 2, the top side of the spline sleeve 9 is provided with a stainless steel spring 10, and the top side of the stainless steel spring 10 abuts against the inside top side of the sliding block 3.

[0035] When the front and back moving assembly is used, the spline shaft 8 is rotated through the driving motor 25, so that the spline sleeve 9 slidingly sleeved on the spline shaft 8 is rotated, and then the bevel gear 1 fixedly connected with the bottom side of the spline sleeve 9 is rotated, since the bevel gear 1 is engaged with the bevel gear 2, the ball screw 3 is rotated, so that the nut 4 threadedly sleeved on the ball screw 3 slides forward and backward, and then the sliding block 5 connected through the fixed plate 7 slides forward and backward on the guide rail 4, so that the dose detector 6 installed at the top side of the fixed plate 7 can realize left and right movement, up and down movement and front and back movement in the water tank test main body 3.

[0036] The drainage assembly comprises a siphon box 36, the inside bottom side of the water tank test body 3 is provided with a drainage groove 6, the siphon box 36 is fixedly connected to the bottom side of the drainage groove 6, the right bottom side of the water tank test body 3 is provided with a drainage port 38, one end of the drainage port 38 is communicated with the siphon box 36, and the bottom of the siphon box 36 is provided with a plurality of water leakage joints 37.

[0037] When the drainage assembly is used, water in the water tank test body 3 enters the siphon box 36 through the water leakage joints 37 in the bottom of the siphon box 36, and is then drained through the drainage port 38. Since the liquid surface at the bottom end of the drainage port 38 is lower than the bottom side of the drainage groove 6, the siphon effect is achieved, and the water tank test body 3 is quickly dried.

[0038] The front left part of the mounting plate one 5 is further fixedly provided with a mechanical absolute encoder three 31, the input shaft end of the mechanical absolute encoder three 31 is fixedly connected to the left end of the ball screw one 12, the top left and right sides of the mounting plate three 23 are respectively fixedly provided with a mechanical absolute encoder two 27 and a mechanical absolute encoder one 26, the input shaft ends of the mechanical absolute encoder two 27 and the mechanical absolute encoder one 26 are respectively fixedly connected with a synchronous pulley two 29 and a synchronous pulley six 49, the top end outer surfaces of the spline shaft 18 and the ball screw two 17 are respectively fixedly sleeved with a synchronous pulley one 28 and a synchronous pulley five 48, the synchronous pulley one 28 and the synchronous pulley two 29 are tightly sleeved with a synchronous belt one 30, and the synchronous pulley five 48 and the synchronous pulley six 49 are tightly sleeved with a synchronous belt three 50.

[0039] When the ball screw one 12 rotates, the input shaft of the mechanical absolute encoder three 31 is synchronously driven to rotate, when the spline shaft 18 and the ball screw two 17 rotate, the input shafts of the mechanical absolute encoder two 27 and the mechanical absolute encoder one 26 are synchronously rotated through the synchronous belt one 30 and the synchronous belt three 50, so that real-time feedback is performed when the coordinate position of the dose probe 45 changes, to ensure the accuracy of the test process.

[0040] The bottom front and back sides of the water tank test body 3 are fixedly connected with handles 4, so that the water tank test body 3 can be easily lifted.

[0041] The guide rail one 7, the guide rail three 16 and the guide rail four 21 are all provided with a scale 13, and the distances of left and right movement, lifting movement and forward and backward movement can be directly measured through the scale 13.

[0042] Working principle: the simulation human body radiation dose water tank test body uses, through pushing the mobile cart 1 to move the equipment, through the moving lifting platform 2 to realize the moving lifting of the water tank test body 3, the dose detector 45 is arranged in the water tank test body 3 to measure the radiation dose, and through the driving motor three 32 rotates the synchronous pulley three 33, thereby rotating the synchronous pulley four 34 through the synchronous belt two 35 tensioning sleeve, in turn rotating the ball screw one 12, so that the nut one 11 threaded on the ball screw one 12 moves left and right, in turn driving the sliding block one 8 to slide left and right on the guide rail one 7, in turn driving the fixed plate one 9 and the mounting plate two 10 to move left and right, the fixed plate one 9 drives the mounting plate three 23 and the guide rail three 16 to move left and right, in turn driving the sliding block two 15 to slide left and right on the guide rail two 14;

[0043] Through the driving motor one 24 rotating the ball screw two 17, in turn driving the nut two 22 threaded on the ball screw two 17 to move up and down, in turn driving the sliding block three 19 fixedly connected with the nut two 22 to slide up and down on the guide rail three 16, and driving the guide rail four 21 fixedly connected with the sliding block three 19 to move up and down through the fixed plate two 20, through the driving motor two 25 rotating the spline shaft 18, in turn rotating the spline sleeve 39 slidingly sleeved on the spline shaft 18, in turn rotating the bevel gear one 40 fixedly connected with the bottom side of the spline sleeve 39, since the bevel gear one 40 is engaged with the bevel gear two 41, in turn rotating the ball screw three 44, so that the nut three 43 threaded on the ball screw three 44 slides forward and backward, in turn driving the sliding block four 46 connected through the fixed plate three 47 to slide forward and backward on the guide rail four 21, finally making the dose detector 45 installed on the top side of the fixed plate three 47 realize left and right movement, up and down movement and forward and backward movement inside the water tank test body 3;

[0044] And when the ball screw one 12 rotates, the input shaft of the mechanical absolute encoder three 31 is synchronously driven to rotate, when the spline shaft 18 and the ball screw two 17 rotate, through the synchronous belt one 30 and the synchronous belt three 50, the input shafts of the mechanical absolute encoder two 27 and the mechanical absolute encoder one 26 are synchronously rotated, so as to realize real-time feedback when the coordinate position of the dose detector 45 changes, to ensure the accuracy of the test process;

[0045] After the test is completed, the water in the water tank test body 3 enters the siphon box 36 through the water leakage gap 37 opened at the bottom of the siphon box 36, in turn through the drain 38 to drain water, since the liquid surface at the bottom end of the drain pipe is lower than the bottom side of the drain groove 6, the siphon effect is realized, and the effect of quickly sucking dry inside the water tank test body 3 is achieved.

[0046] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A water tank testing body for simulating human body radiation dose, comprising a mobile trolley (1), a mobile lifting platform (2), and a water tank testing body (3), characterized in that: The mobile lifting platform (2) is installed on the top of the mobile trolley (1), and the water tank test body (3) is installed on the top of the mobile lifting platform (2). A mounting plate (5) is fixedly installed on the front top of the water tank test body (3). A guide rail (7) is fixedly installed on the rear side of the mounting plate (5). A slider (8) is slidably installed on the guide rail (7). A fixing plate (9) is fixedly connected to the rear side of the slider (8). A mounting plate (10) is fixedly connected to the bottom side of the fixing plate (9). A guide rail (16) is fixedly installed on the bottom side of the mounting plate (10). A slider three (19) is slidably installed. A fixing plate two (20) is fixedly connected to the rear side of the slider three (19). A guide rail four (21) is fixedly installed to the rear side of the fixing plate two (20). A slider four (46) is slidably installed on the guide rail four (21). A fixing plate three (47) is fixedly connected to the top side of the slider four (46). A dose detector (45) is installed on the top side of the fixing plate three (47). A left and right moving component is installed on the front side of the mounting plate one (5). A lifting component and a front and back moving component are also installed on the fixing plate one (9). A drainage component is provided on the right side inside the water tank test body (3).

2. The water tank testing body for simulating human body radiation dose according to claim 1, characterized in that: The left and right moving component includes a drive motor three (32), which is fixedly installed on the front left side of the mounting plate one (5). A ball screw one (12) is also rotatably installed on the front side of the mounting plate one (5). A synchronous pulley three (33) is fixedly connected to the output shaft end of the drive motor three (32). A synchronous pulley four (34) is fixedly sleeved on the left side of the ball screw one (12). A synchronous belt two (35) is tensioned between the synchronous pulley three (33) and the synchronous pulley four (34). A nut one (11) is threaded on the ball screw one (12). The rear side of the nut one (11) is fixedly connected to the front side of the slider one (8).

3. The water tank testing body for simulating human body radiation dose according to claim 2, characterized in that: The lifting assembly includes a drive motor (24), a mounting plate (23) is fixedly connected to the top side of the fixed plate (9), the drive motor (24) is fixedly installed on the top right side of the mounting plate (23), a slider (15) is fixedly connected to the bottom of the guide rail (16), a guide rail (14) is fixedly installed on the bottom side of the inside of the water tank test body (3), the slider (15) is slidably installed on the guide rail (14), a ball screw (17) is rotatably installed between the right side of the mounting plate (10) and the right side of the slider (15), a nut (22) is fixedly connected to the right side of the slider (19), the nut (22) is threaded onto the ball screw (17), and the output shaft end of the drive motor (24) is fixedly connected to the top of the ball screw (17).

4. The water tank testing body for simulating human body radiation dose according to claim 3, characterized in that: The forward and backward moving assembly includes a second drive motor (25), which is fixedly mounted on the top left side of the mounting plate three (23). A spline shaft (18) is rotatably mounted between the left side of the mounting plate two (10) and the left side of the slider two (15). A ball screw three (44) is rotatably mounted on the left side of the guide rail four (21). A nut three (43) is threaded onto the ball screw three (44). The top side of the nut three (43) is fixedly connected to the bottom side of the fixed plate three (47). The front end of the ball screw three (44) passes through the slider three (19) and is fixedly connected to the bevel gear two (41). A spline sleeve (39) is slidably sleeved on the spline shaft (18). A bevel gear one (40) is fixedly connected to the bottom side of the spline sleeve (39). The bevel gear one (40) meshes with the bevel gear two (41). A stainless steel spring (42) is provided on the top side of the spline sleeve (39). The top side of the stainless steel spring (42) abuts against the inner top side of the slider three (19).

5. The water tank testing body for simulating human body radiation dose according to claim 4, characterized in that: The drainage assembly includes a siphon box (36), and a drainage groove (6) is provided on the bottom side of the inside of the water tank test body (3). The siphon box (36) is fixedly connected to the bottom side of the drainage groove (6). A drain outlet (38) is provided on the bottom right side of the water tank test body (3). One end of the drain outlet (38) is connected to the siphon box (36). Several water leakage slits (37) are provided through the bottom of the siphon box (36).

6. The water tank testing body for simulating human body radiation dose according to claim 5, characterized in that: A mechanical absolute encoder three (31) is fixedly installed on the front left side of the mounting plate one (5). The input shaft end of the mechanical absolute encoder three (31) is fixedly connected to the left end of the ball screw one (12). Mechanical absolute encoder two (27) and mechanical absolute encoder one (26) are fixedly installed on the top left and right sides of the mounting plate three (23). The input shaft ends of the mechanical absolute encoder two (27) and mechanical absolute encoder one (26) are fixedly connected to synchronous pulley two (29) and synchronous pulley six (49). The top outer surfaces of the spline shaft (18) and the ball screw two (17) are fixedly sleeved with synchronous pulley one (28) and synchronous pulley five (48). Synchronous belt one (30) is tensioned between synchronous pulley one (28) and synchronous pulley two (29). Synchronous belt three (50) is tensioned between synchronous pulley five (48) and synchronous pulley six (49).

7. The water tank testing body for simulating human body radiation dose according to claim 6, characterized in that: The bottom front and rear sides of the water tank test body (3) are fixedly connected with handles (4).

8. The water tank testing body for simulating human body radiation dose according to claim 6, characterized in that: A scale (13) is provided on each of the guide rails 1 (7), 3 (16) and 4 (21).

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