A bottom size laser measuring device for ship body manufacturing

Abstract

The application belongs to the technical field of ship manufacturing, and discloses a bottom size laser measuring device for ship body manufacturing, which comprises a base and a ship.The application is characterized in that the cooperation of the measuring assembly and the recording assembly and other structures is provided, when the value of a certain point is suddenly too large, the hydraulic rod II drives the recording assembly to record, the maintenance personnel can see the deformation at the place through the recording assembly and make preparations in advance, the output shaft of the forward and reverse motor reversely rotates, when the distance measuring block reaches the position recorded by the recording assembly, the laser emitted by the laser scanner points to the deformation position of the ship, thereby helping the staff to better confirm, the laser point located on the ship can be circled through a marker pen or a lacquer pen, thereby facilitating subsequent searching, when the above scanning work is performed, the staff can directly see the deformation position and mark, instead of judging the approximate deformation position through the modeling displayed on the computer, which makes the detection work simpler and clearer.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically a laser measuring device for bottom dimensions in shipbuilding. Background Technology

[0002] As the only means of transportation at sea, ships are categorized into various types, including micro, small, and medium-sized vessels, each corresponding to different fields of work. However, without exception, the sturdiness and waterproofness of the hull largely determine its quality. If problems arise during the shipbuilding process, a ship with manufacturing defects could potentially cause injury to those on board. In current acceptance procedures, the dimensions of the hull are typically measured. This is essentially an inspection to detect potential deformations in the hull, a process known as hull baseline measurement or hull bottom mapping.

[0003] However, it should be noted that for the inspection of small vessels, manufacturers need to pay high costs to purchase laser scanners and regularly spend additional money on their maintenance. The laser equipment then models the scanned data on a computer, which means that staff cannot see the deformation location in real time before the laser equipment completes the measurement. This prevents them from preparing in advance, resulting in a significant expenditure of time, money, and manpower, indirectly reducing the efficiency and practicality of using laser scanning equipment. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a laser measuring device for the bottom dimensions of ship hulls, which solves the problem that workers cannot see the deformation position in real time before the laser equipment completes the measurement, thus making it impossible to prepare in advance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser measuring device for bottom dimensions in ship hull manufacturing, comprising a base and a ship, and further comprising;

[0006] A first support mechanism is installed on the base, and two sets of second support mechanisms are symmetrically arranged on the base;

[0007] The first and second support mechanisms are used to cooperate with each other and support the ship;

[0008] Two measuring components are symmetrically arranged on top of the base;

[0009] The measuring component includes two meshing bevel gears and a protective box mounted on top of the base, with a recording component disposed inside the protective box;

[0010] The side of the protection box is provided with a forward and reverse motor, the output shaft of the forward and reverse motor is provided with a threaded rod, the inside of the protection box is provided with a limiting box, the inside of the limiting box is movably connected with a distance measuring block which is sleeved with the threaded rod, one bevel gear is rotatably installed on the side of the distance measuring block and movably sleeved with the threaded rod;

[0011] The other bevel gear is rotatably installed on the top of the distance measuring block and connected with a wave shaft through a speed increasing gear set;

[0012] The side of the speed increasing gear set is hingedly connected with a laser scanner, the outer periphery of the wave shaft is provided with wave grooves connected in head-to-tail mode, the wave shaft is connected with a wave plate through the wave grooves, and the wave plate is hingedly connected with the laser scanner through a guide rod;

[0013] The outer side of the speed increasing gear set is provided with a second hydraulic rod, and the end of the second hydraulic rod abuts against a recording assembly.

[0014] Preferably, the speed increasing gear set is fixed to the top of the distance measuring block, the bevel gear on the top of the distance measuring block is installed on the input end of the speed increasing gear set, and the wave shaft is installed on the output end of the wave plate.

[0015] Preferably, a group of transverse grooves are equidistantly arranged on the outer periphery of the threaded rod, and the bevel gear on the side of the distance measuring block is movably arranged on the threaded rod through the transverse grooves.

[0016] Preferably, the recording assembly comprises a group of fixed plates movably connected inside the protection box, the side of each fixed plate is connected with a recording plate through a connecting plate, the side of the fixed plate is attached to the end of the second hydraulic rod, the recording plate is vertically arranged and movably connected inside the protection box, a plastic clamping plate is fixed inside the protection box, and the top of the recording plate is inserted into the bottom of the plastic clamping plate.

[0017] Preferably, the fixed plate, the connecting plate and the recording plate are a group of triggers, and the triggers are equidistantly arranged inside the protection box.

[0018] Preferably, the two ends of the connecting plate are connected with the fixed plate and the connecting plate through hinging pieces respectively, and the fixed plate and the connecting plate are horizontally arranged.

[0019] Preferably, the second support mechanism comprises a support plate fixed to the top of the base, a first hydraulic rod is installed on the inner side of the support plate, and the end of the first hydraulic rod is rotatably installed with a first tire, and the first tire is inclined downward by 20 degrees towards the bow direction of the ship.

[0020] Preferably, the first support mechanism comprises a group of spring telescopic rods equidistantly arranged on the top of the base, a second gear is rotatably installed on the top of each spring telescopic rod, and a gear two is installed on the two ends of the second gear.

[0021] The top of the base is provided with a first motor, gear wheels are arranged on both ends of the output shaft of the first motor, and the gear wheels are in transmission connection with gear wheels II through chains.

[0022] Preferably, the first supporting mechanism further comprises two groups of spring telescopic rods symmetrically arranged on the base, a guide plate is arranged on each group of spring telescopic rods, a plurality of rollers are arranged on the inner side of the guide plate, and the chains are wound around the rollers.

[0023] Preferably, each roller limits the chains to cover the upper half of each gear wheel II.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] When the value of a certain point changes suddenly and excessively, the hydraulic rod II drives the recording assembly to record, and the maintenance personnel can see the deformation at the position through the recording assembly and make preparations in advance, so that the output shaft of the forward and reverse motor rotates reversely, when the distance measuring block reaches the position recorded by the recording assembly, the laser emitted by the laser scanner points to the deformation position of the ship, thereby helping the staff to better confirm, and the laser point located on the ship can be circled through a marker pen or a lacquer pen, thereby facilitating subsequent searching, when the above scanning work is performed, the staff can directly see the deformation position and mark it, instead of judging the approximate deformation position through the modeling displayed on the computer, which makes the detection work simpler and clearer.

[0026] When the hydraulic rod II needs to be stretched, the end thereof pushes the corresponding fixed plate, the fixed plate pushes the recording plate to ascend through the connecting plate, the recording plate at the position is no longer flush with the top of the measuring assembly, and the other top thereof moves forward to the deeper part of the plastic clamp plate, so that the recording plate is clamped by the plastic clamp plate, which can avoid the recording plate from sliding downward, so that the staff cannot accurately view the recorded deformation position, after the corresponding fixed plate moves, the recording plate thereon is simultaneously raised, so that the top thereof is no longer located at the same horizontal plane as the top of the protective box, and the staff can find the recording plate after ascending more quickly.

[0027] The application is characterized in that the first supporting mechanism and the ship structure are matched, when the ship is hoisted and placed on the top of the first supporting mechanism, it preferentially contacts the second gear, the elasticity of the second gear will not damage the paint coating on the bottom of the ship, and during the placing process of the ship, the part of the spring telescopic rod will also retract, thereby avoiding the hard touch during the descending process of the ship, and causing the possible disengagement of the installed parts of the ship, and the bottom of the ship will not appear the undeserved deformation due to the impact of the first supporting mechanism, and unnecessary work is reduced, the output shaft of the first motor drives gear one to rotate, gear one drives gear two and the second gear to rotate through the chain, so as to move the ship to the appropriate position, so as to avoid the unnecessary labor of the staff to push the ship when the hoisting position is not in the specified position of the process.

[0028] The application is characterized in that the first supporting mechanism and the second supporting mechanism are matched, during the process that the first supporting mechanism drives the ship to move forward, the first tire will guide the ship to further descend, so as to be more firmly attached to the first supporting mechanism, when the external force pushes the ship to move in the direction of the bow of the ship, the first supporting mechanism will limit it, when the external force pushes the ship to move in the direction of the stern of the ship, it needs to overcome the force of the first tire guiding the ship upward, that is, the weight of the ship, which also makes the ship difficult to move in two directions, thereby greatly avoiding the interference of the scanning work by external factors. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is an appearance structure schematic diagram of the application;

[0030] Figure 2 It is an internal structure schematic diagram of the protection box of the application;

[0031] Figure 3 It is an internal structure schematic diagram of the limiting box of the application;

[0032] Figure 4 It is a front view of the structure cooperation of the measuring assembly and the recording assembly of the application;

[0033] Figure 5 It is a structure cooperation schematic diagram of the protection box and the recording assembly of the application;

[0034] Figure 6 It is a structure cooperation schematic diagram of the base and the first supporting mechanism of the application;

[0035] Figure 7 It is a front view of the structure cooperation of the first supporting mechanism and the structure of the application;

[0036] Figure 8 It is a schematic diagram of the independent structure of the first supporting mechanism of the application;

[0037] Figure 9The first support mechanism structure is exploded and shown in the schematic view.

[0038] In the figure: 1, base; 2, ship; 3, first support mechanism; 31, first motor; 311, gear one; 312, chain; 32, spring telescopic rod; 33, second gear; 331, gear two; 34, tension spring telescopic rod; 35, guide plate; 36, roller; 4, measurement assembly; 41, protective box; 42, forward and reverse motor; 43, threaded rod; 44, limiting box; 45, distance measuring block; 46, bevel gear; 47, speed increasing gear set; 471, hydraulic rod two; 48, undulating shaft; 49, undulating plate; 40, guide rod; 401, laser scanner; 5, recording assembly; 51, fixed plate; 52, adapter plate; 53, recording plate; 54, plastic clamp plate; 6, second support mechanism; 61, support plate; 62, hydraulic rod one; 63, first tire. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] As Figures 1 to 9 shown, the present application provides a bottom size laser measurement device for ship body manufacturing, which comprises a base 1 and a ship 2, and further comprises;

[0041] The first support mechanism 3 is installed on the base 1, and two groups of second support mechanisms 6 are symmetrically arranged on the base 1;

[0042] The first support mechanism 3 and the second support mechanism 6 are used for cooperating with each other and supporting the ship 2;

[0043] Two measurement assemblies 4 are symmetrically arranged on the top of the base 1;

[0044] The measurement assembly 4 comprises two meshing bevel gears 46 and a protective box 41 installed on the top of the base 1, and the inside of the protective box 41 is provided with a recording assembly 5;

[0045] The forward and reverse motor 42 is installed on the side of the protective box 41, the output shaft of the forward and reverse motor 42 is provided with the threaded rod 43, the inside of the protective box 41 is provided with the limiting box 44, the distance measuring block 45 threaded on the outer periphery of the threaded rod 43 is movably clamped in the limiting box 44, and one bevel gear 46 is rotatably installed on the side of the distance measuring block 45 and movably sleeved on the outer periphery of the threaded rod 43;

[0046] The threaded rod 43 is provided with a set of transverse grooves at its outer periphery, and the bevel gears 46 located at the side of the distance block 45 are movably arranged on the threaded rod 43 through the transverse grooves.

[0047] Another bevel gear 46 is rotatably arranged on the top of the distance block 45 and is connected with the undulating shaft 48 through the speed increasing gear set 47;

[0048] The speed increasing gear set 47 is fixedly arranged on the top of the distance block 45, the bevel gear 46 located on the top of the distance block 45 is arranged on the input end of the speed increasing gear set 47, and the undulating shaft 48 is arranged on the output end of the undulating plate 49.

[0049] The laser scanner 401 is hingedly arranged on the side of the speed increasing gear set 47, the undulating shaft 48 is provided with a wave groove connected at its head and tail, the undulating plate 49 is connected with the undulating shaft 48 through the wave groove, and the undulating plate 49 is hingedly connected with the laser scanner 401 through the guide rod 40;

[0050] The hydraulic rod two 471 is arranged on the outer side of the speed increasing gear set 47, and the end of the hydraulic rod two 471 abuts against the recording assembly 5.

[0051] By adopting the above scheme, the ship 2 is preferentially hoisted above the base 1, and after the position is determined, the ship 2 is placed on the top of the first supporting mechanism 3, at this time, the first supporting mechanism 3 jointly stabilizes the position of the ship 2 together with the two second supporting mechanisms 6 arranged symmetrically;

[0052] Then, the forward-reverse motor 42 is started, and the output shaft of the forward-reverse motor 42 drives the threaded rod 43 to rotate, since the limiting box 44 limits the distance block 45 to move only in the horizontal direction, the distance block 45 will move horizontally in the process of rotation of the threaded rod 43.

[0053] At the same time, the threaded rod 43 also drives the bevel gears 46 located at the side of the distance block 45 to rotate through the transverse grooves on the threaded rod 43, the two bevel gears 46 are engaged with each other, the bevel gear 46 located above the distance block 45 drives the undulating shaft 48 to rotate through the speed increasing gear set 47, and at this time, the undulating plate 49 reciprocates up and down through the wave groove on the undulating shaft 48.

[0054] Finally, the undulating plate 49 pulls the laser scanner 401 to reciprocate in the vertical direction through the guide rod 40.

[0055] Through the speed changing work of the speed increasing gear set 47, in the process that the distance block 45 moves by one rotation of the threaded rod 43, the laser scanner 401 can swing several times, and the moving frequency is greatly improved, so that the ship 2 is more efficiently scanned from the bottom.

[0056] Because the bow of the ship 2 is designed to be inclined, and the angle of the laser scanner 401 is fixed, if the length detected by the laser scanner 401 suddenly increases greatly, it means that the laser scanner 401 is scanning the bow of the ship 2 at this time, and the laser emitted by the laser scanner 401 is not on the ship 2, so the hydraulic rod two 471 will not be driven to make any action, so as to avoid the possibility of misjudgment of the device during scanning;

[0057] The outside and bottom of the ship 2 are normally streamlined from top to bottom, so when the laser scanner 401 scans, the obtained values are uniformly changed. If the value of a certain point suddenly changes too much during the process of detecting uniform value change, the hydraulic rod two 471 will be directly driven to extend and push the recording assembly 5 to record, and then immediately retract, so as to avoid the hydraulic rod two 471 being stuck on the recording assembly 5. The maintenance personnel can see the deformation at this place through the recording assembly 5 and make preparations in advance;

[0058] The preparation work includes but is not limited to reaching the marked position of the recording assembly 5 and observing by naked eye, designing subsequent maintenance scheme or preparing maintenance tools in advance;

[0059] The above operation does not need to manually hold the laser equipment for scanning, which reduces the labor cost, and the intelligent design makes the hydraulic rod two 471 not to extend without reason, so as to cause inaccurate recording of the recording assembly 5 or frequent recording;

[0060] After the scanning and detection work is completed, the output shaft of the positive and negative motor 42 is reversely rotated, and the distance measuring block 45 returns to the initial position. When the distance measuring block 45 reaches the position recorded by the recording assembly 5, the laser emitted by the laser scanner 401 will also point to the deformation of the ship 2, thereby helping the workers to better confirm. The workers can circle the laser point on the ship 2 by using a marker pen or a paint pen, so as to facilitate subsequent searching;

[0061] Compared with the existing 3D modeling method, during the above scanning work, the workers can directly see the deformation and mark, instead of judging the approximate deformation position through the modeling displayed on the computer, which makes the detection work more simple and clear.

[0062] As shown in Figures 1-5 The recording assembly 5 includes a group of fixed plates 51 movably clamped in the protective box 41. The side surface of each fixed plate 51 is connected with a recording plate 53 through a connecting plate 52. The side surface of the fixed plate 51 is in contact with the end of the hydraulic rod two 471. The recording plate 53 is vertically movably clamped in the protective box 41. A plastic clamping plate 54 is fixedly installed in the protective box 41. The top of the recording plate 53 is inserted into the bottom of the plastic clamping plate 54.

[0063] The two ends of the connecting plate 52 are connected to the fixed plate 51 and the connecting plate 52 respectively through hinges. Both the fixed plate 51 and the connecting plate 52 are in a horizontal state.

[0064] The fixed plate 51, the connecting plate 52 and the recording plate 53 form a set of triggers. There are several triggers arranged at equal intervals inside the protective box 41.

[0065] Using the above scheme: In the initial state, the top of the recording plate 53 is on the same horizontal plane as the top of the side of the protective box 41. When the hydraulic rod 471 needs to extend, its end pushes the corresponding fixed plate 51. The fixed plate 51 pushes the recording plate 53 up through the connecting plate 52. The recording plate 53 at this point is no longer flush with the top of the measuring component 4, so that the staff can find the rising recording plate 53 more quickly.

[0066] It should also be noted that the recording plate 53 is U-shaped, and its other top is also inserted into the bottom of the plastic clamp 54. So when the recording plate 53 rises, it will move deeper into the plastic clamp 54, so that the recording plate 53 is clamped by the plastic clamp 54. This can prevent the recording plate 53 from sliding down, which would prevent the staff from accurately checking the deformation position of the record.

[0067] like Figures 1-9 As shown, the first support mechanism 3 includes a set of spring telescopic rods 32 equidistantly arranged on the top of the base 1. Each spring telescopic rod 32 has a second gear 33 rotatably mounted on its top, and a second gear 331 is mounted on both ends of the second gear 33.

[0068] A first motor 31 is installed on the top of the base 1. A gear 311 is installed at both ends of the output shaft of the first motor 31. The gear 311 is connected to the gear 331 via a chain 312.

[0069] The first support mechanism 3 also includes two sets of tension spring telescopic rods 34 symmetrically installed on the base 1. Each set of tension spring telescopic rods 34 is equipped with a guide plate 35. Several rollers 36 are installed on the inner side of the guide plate 35, and the chain 312 is wound around each roller 36.

[0070] Each roller 36 restricts the chain 312 to cover the upper half of each gear 331.

[0071] Adopting the above scheme, when the ship 2 is hoisted and placed on the top of the first supporting mechanism 3, it preferentially contacts the second gear 33, the elasticity of the second gear 33 will not damage the paint coating on the bottom of the ship 2, and during the placing of the ship 2, the part of the spring telescopic rod 32 will also retract, thereby avoiding the hard contact during the lowering of the ship 2 and causing the possible disengagement of the installed parts of the ship 2, and further avoiding the unnecessary deformation of the bottom of the ship 2 due to the impact of the first supporting mechanism 3, and reducing unnecessary work;

[0072] After the ship 2 is placed, the output shaft of the first motor 31 drives the gear one 311 to rotate, the gear one 311 drives the gear two 331 and the second gear 33 to rotate through the chain 312, so as to move the ship 2 to a suitable position, thereby avoiding the unnecessary labor cost of the workers to push the ship 2 when the hoisting position is not in the specified position of the process;

[0073] When the ship 2 presses the second gear 33 and causes the position of the second gear 33 and the top of the spring telescopic rod 32 to descend, the tension spring telescopic rod 34 will also pull the guide plate 35 at the same time, so that the rollers 36 on the guide plate 35 can better cover the chain 312 on each gear two 331, thereby realizing the subsequent transmission work.

[0074] As shown in Figure 1 , Figure 6 and Figure 7 , the second supporting mechanism 6 comprises a support plate 61 fixed on the top of the base 1, the inner side of the support plate 61 is provided with a hydraulic rod one 62, the end of the hydraulic rod one 62 is rotatably provided with a tire one 63, and the tire one 63 is inclined downward by 20 degrees towards the bow direction of the ship 2.

[0075] Adopting the above scheme, when the ship 2 is placed on the top of the first supporting mechanism 3, the hydraulic rod one 62 is extended and the tire one 63 is abutted on the outer side of the ship 2, at this time, the hook on the hoisting equipment can be separated from the ship 2;

[0076] Since the tire one 63 is inclined, during the driving of the first supporting mechanism 3 to move the ship 2 forward, the tire one 63 will guide the ship 2 to further descend, so as to more stably adhere to the first supporting mechanism 3;

[0077] When the first motor 31 stops working, the ship 2 will be difficult to move, which better ensures the stability of the detection work;

[0078] When the external force pushes the ship 2 to move in the bow direction, the first supporting mechanism 3 limits it, and when the external force pushes the ship 2 to move in the stern direction, the force of the first tire 63 guiding the ship 2 upward, i.e. the weight of the ship 2, needs to be overcome, which also makes the ship 2 difficult to move in two directions, thereby greatly avoiding the interference of external factors on the scanning work.

[0079] The working principle and use process of the present application are as follows:

[0080] The ship 2 is preferentially hoisted above the base 1;

[0081] The first motor 31 drives the gear one 311 to rotate, the gear one 311 drives the gear two 331 and the second gear 33 to rotate through the chain 312, so that the ship 2 is moved to a suitable position;

[0082] The hydraulic rod one 62 is extended and the first tire 63 is abutted against the outside of the ship 2, at this time, the hook on the hoisting equipment can be separated from the ship 2;

[0083] Then the positive and negative motor 42 is started, the output shaft of the positive and negative motor 42 drives the threaded rod 43 to rotate, and the distance measuring block 45 moves horizontally in the process of the rotation of the threaded rod 43;

[0084] At the same time, the threaded rod 43 also drives the bevel gears 46 on the side of the distance measuring block 45 to rotate through the transverse grooves on the threaded rod 43, the two bevel gears 46 are engaged, the bevel gear 46 above the distance measuring block 45 drives the undulating shaft 48 to rotate through the speed increasing gear set 47, at this time, the undulating plate 49 reciprocates up and down through the wave grooves on the undulating shaft 48;

[0085] The undulating plate 49 finally pulls the laser scanner 401 to reciprocate in the vertical direction through the guide rod 40;

[0086] Through the speed changing work of the speed increasing gear set 47, the laser scanner 401 can swing several times in the process of the rotation of the threaded rod 43 for one circle and the movement of the distance measuring block 45;

[0087] The outside and the bottom of the ship 2 are streamline-shaped from top to bottom in the normal state, so the obtained values are uniformly changed when the laser scanner 401 scans, if the value of a certain point suddenly changes too much in the process of detecting the uniformly changed values, the hydraulic rod two 471 will be directly driven to extend;

[0088] The hydraulic rod two 471 pushes the corresponding fixed plate 51, the fixed plate 51 pushes the recording plate 53 to rise through the link plate 52, and it also goes deeper to the plastic clamp plate 54, so that the recording plate 53 is clamped by the plastic clamp plate 54, and the staff can directly see the deformation position of the marked position.

[0089] When the laser scanner 401 moves to the initial position and reaches the position where the recording plate 53 rises, the emission end of the laser scanner 401 will cause the laser to irradiate the deformation position of the ship 2, which can be marked in advance by the worker through a marker pen or a paint pen.

[0090] It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual 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 also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0091] 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 bottom dimension laser measuring device for ship hull manufacturing, comprising a base (1) and a ship (2), characterized in that, Also include; The first support mechanism (3) is installed on the base (1), and two groups of second support mechanisms (6) are symmetrically arranged on the base (1); The first support mechanism (3) and the second support mechanism (6) are used for mutual cooperation and supporting the ship (2); Two measuring assemblies (4) are symmetrically arranged on the top of the base (1); The measuring assembly (4) comprises two intermeshing bevel gears (46) and a protection box (41) installed on the top of the base (1), and the inside of the protection box (41) is provided with a recording assembly (5); The side of the protection box (41) is provided with a forward and reverse motor (42), the output shaft of the forward and reverse motor (42) is provided with a threaded rod (43), the inside of the protection box (41) is provided with a limiting box (44), the inside of the limiting box (44) is movably connected with a distance measuring block (45) sleeved on the outer periphery of the threaded rod (43), and one of the bevel gears (46) is rotatably installed on the side of the distance measuring block (45) and movably sleeved on the outer periphery of the threaded rod (43); The other bevel gear (46) is rotatably installed on the top of the distance measuring block (45) and is drivingly connected with a wave shaft (48) through a speed increasing gear set (47); The side of the speed increasing gear set (47) is hingedly connected with a laser scanner (401), the outer periphery of the wave shaft (48) is provided with wave troughs connected in head-to-tail mode, the wave shaft (48) is connected with a wave plate (49) through the wave troughs, and the wave plate (49) is hingedly connected with the laser scanner (401) through a guide rod (40); The outer side of the speed increasing gear set (47) is provided with a second hydraulic rod (471), and the end of the second hydraulic rod (471) abuts against the recording assembly (5); The speed increasing gear set (47) is fixedly installed on the top of the distance measuring block (45), the bevel gear (46) on the top of the distance measuring block (45) is installed on the input end of the speed increasing gear set (47), and the wave shaft (48) is installed on the output end of the wave plate (49); A group of transverse grooves are equidistantly arranged on the outer periphery of the threaded rod (43), and the bevel gear (46) on the side of the distance measuring block (45) is movably arranged on the threaded rod (43) through the transverse grooves; The recording assembly (5) comprises a plurality of fixed plates (51) movably connected in the protection box (41), the side of each fixed plate (51) is connected with a recording plate (53) through a connecting plate (52), the side of the fixed plate (51) is attached to the end of the second hydraulic rod (471), the recording plate (53) is vertically arranged and movably connected with the inside of the protection box (41), a plastic clamping plate (54) is fixedly arranged in the inside of the protection box (41), and the top of the recording plate (53) is inserted into the bottom of the plastic clamping plate (54).

2. The bottom dimension laser measuring device for hull manufacturing according to claim 1, characterized in that: The fixed plate (51), the connecting plate (52) and the recording plate (53) form a group of triggers, and a plurality of triggers are equidistantly arranged in the inside of the protection box (41).

3. The bottom dimension laser measuring device for hull manufacturing according to claim 2, characterized in that: The two ends of the connecting plate (52) are connected with the fixed plate (51) and the connecting plate (52) through hinging pieces respectively, and the fixed plate (51) and the connecting plate (52) are in horizontal state.

4. The bottom dimension laser measuring device for hull fabrication of claim 1, wherein: The second support mechanism (6) comprises a support plate (61) fixed on the top of the base (1), the inner side of the support plate (61) is provided with a hydraulic rod (62), the end of the hydraulic rod (62) is rotatably provided with a first tire (63), and the first tire (63) is inclined downward by 20 degrees towards the bow direction of the ship (2).

5. The bottom dimension laser measuring device for hull fabrication of claim 1, wherein: The first support mechanism (3) comprises a group of spring telescopic rods (32) equidistantly arranged on the top of the base (1), the top of each spring telescopic rod (32) is rotatably provided with a second gear (33), and the two ends of the second gear (33) are provided with a gear two (331). The top of the base (1) is provided with a first motor (31), the two ends of the output shaft of the first motor (31) are provided with a gear one (311), and the gear one (311) is in transmission connection with the gear two (331) through a chain (312).

6. The bottom dimension laser measuring device for hull manufacturing according to claim 5, characterized in that: The first support mechanism (3) further comprises two groups of pull spring telescopic rods (34) symmetrically arranged on the base (1), each group of the pull spring telescopic rods (34) is provided with a guide plate (35), the inner side of the guide plate (35) is provided with a plurality of rollers (36), and the chain (312) is wound on each roller (36).

7. The bottom dimension laser measuring device for hull manufacturing according to claim 6, characterized in that: Each roller (36) limits the chain (312) to cover the upper half of each gear two (331).

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