Control tower lifting device and ship surface spraying device

Abstract

The invention provides a control tower lifting device and a ship surface spraying device. The control tower lifting device comprises a lifting driving source, a lifting transmission mechanism, a tower and a control tower. The tower is provided with a first main stand column and a second main stand column, the outer surface of the first main stand column and the outer surface of the second main stand column are provided with a first installation matching face and a second installation matching face, and at least one clamping mechanism is arranged between the control tower and the first main stand column and between the control tower and the second main stand column. Each group of clamping mechanism comprises a holding and clamping seat, a first holding and clamping wheel and a second holding and clamping wheel, the first holding and clamping wheel is in sliding fit with the first mounting and matching surface, and the second holding and clamping wheel is in sliding fit with the second mounting and matching surface; at least the clamping mechanisms distributed on the same side of the control tower are movable clamping mechanisms, the movable clamping mechanisms are rotatably installed on the control tower, locking mechanisms are arranged between the movable clamping mechanisms and the control tower, and the locking mechanisms can enable the movable clamping mechanisms to be in an outward opening state or an inward closing state relative to the control tower. The difficulty of assembling the control tower on the tower frame is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ship surface spraying, in particular to a tower lifting device and a ship surface spraying device equipped with the tower lifting device. Background Art

[0002] Shipbuilding and repair operations involve spraying the exterior of a vessel to form a paint film that protects against corrosion, fouling, and enhances aesthetics and identification. There are two primary methods for spraying a vessel's exterior: manual and automatic. Manual spraying involves workers using a handheld spray gun and a high-altitude work platform. This method suffers from low efficiency, high risk of working at height, and uneven film thickness. Automatic spraying, which uses a ship's exterior spraying device to automatically spray paint, improves the uniformity of the film thickness and spraying efficiency, and has been widely used.

[0003] The ship's exterior spraying device needs to be equipped with a lifting device to drive the spraying device up and down to complete the spraying operation at different heights of the ship's exterior. Existing ship exterior spraying devices, such as the automated work platform for ship painting disclosed in the Chinese invention patent application with application number 202110573747.6, have a lifting device comprising a lower main boom, an upper boom movably connected to the top of the lower main boom, and a main boom winch. A coating working arm is installed on one side of the upper boom, and a coating working head is fixedly connected to the end of the coating working arm away from the upper boom. The main boom winch is movably connected to the coating working arm by a winch rope. The upper boom and the coating working arm are centrally raised and lowered and telescoped by the main boom winch, thereby controlling the raising and lowering and telescoping of the coating working head. However, the ship's exterior spraying device has the following defects: a liftable upper boom is provided, and the upper boom structure is large, requiring a high-horsepower winch for overall lifting; in particular, when the larger upper boom is mounted on the higher lower main boom, the assembly difficulty is very high. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a tower lifting device, which adopts a matching structure in which the tower does not rise or fall but the tower rises or falls, and can improve the assembly convenience of the tower on the tower.

[0005] To achieve the above-mentioned object, the present invention provides a tower lifting device, comprising a lifting drive source, a lifting transmission mechanism, a tower extending vertically, and a tower mounted on the outer periphery of the tower so as to be movable up and down, wherein the lifting drive source is connected to the tower via the lifting transmission mechanism and is used to drive the tower to rise and fall along the tower;

[0006] The tower is provided with a first main column and a second main column arranged horizontally side by side, the outer surfaces of the first main column and the second main column have a first mounting mating surface and a second mounting mating surface, the first mounting mating surface and the second mounting mating surface are arranged at an angle and both extend vertically, at least one set of clamping mechanisms is provided between the tower and the first main column, and between the tower and the second main column, each set of the clamping mechanisms includes a clamping seat, and a first clamping wheel and a second clamping wheel rotatably mounted on the clamping seat, the first clamping wheel and the first mounting mating surface are in sliding engagement, and the second clamping wheel and the second mounting mating surface are in sliding engagement, so as to limit the displacement of the tower relative to the tower in a non-lifting direction;

[0007] Among the multiple groups of clamping mechanisms between the tower and the tower, at least the clamping mechanisms distributed on the same side of the tower are movable clamping mechanisms. The movable clamping mechanisms are rotatably installed on the tower, and a locking mechanism is provided between the tower and the tower. The locking mechanism can make the movable clamping mechanism be in an outwardly open state or an inwardly closed state relative to the tower.

[0008] Furthermore, there are two groups of clamping mechanisms between the tower and the first main column, namely, a first clamping mechanism and a second clamping mechanism arranged side by side up and down; there are two groups of clamping mechanisms between the tower and the second main column, namely, a third clamping mechanism and a fourth clamping mechanism arranged side by side up and down;

[0009] Among the first clamping mechanism, the second clamping mechanism, the third clamping mechanism and the fourth clamping mechanism, at least the first clamping mechanism and the second clamping mechanism are both movable clamping mechanisms, or at least the third clamping mechanism and the fourth clamping mechanism are both movable clamping mechanisms.

[0010] Furthermore, among the first clamping mechanism, the second clamping mechanism, the third clamping mechanism and the fourth clamping mechanism, the wheel pressure of the first clamping wheel and the second clamping wheel at the first clamping mechanism is the largest;

[0011] A first X-direction adjustment mechanism is provided between the clamping seat of the second clamping mechanism and the tower, and the first X-direction adjustment mechanism is used to adjust the X-direction position of the second clamping mechanism relative to the tower;

[0012] A second X-direction adjustment mechanism and a Y-direction adjustment mechanism connected to the clamping seat of the third clamping mechanism and the clamping seat of the fourth clamping mechanism are provided between the tower. The second X-direction adjustment mechanism is used to adjust the X-direction position of the third clamping mechanism and the fourth clamping mechanism relative to the tower, and the Y-direction adjustment mechanism is used to adjust the Y-direction position of the third clamping mechanism and the fourth clamping mechanism relative to the tower.

[0013] Furthermore, the first X-direction adjustment mechanism and the second X-direction adjustment mechanism both include an adjustment bolt extending axially along the X-direction, a first locking nut and a second locking nut threadedly connected to the adjustment bolt, and an adjustment connecting seat. The second clamping mechanism, the third clamping mechanism and the fourth clamping mechanism are fixed with an adjustment connecting plate. The adjusting bolt is passed through the adjustment connecting plate and the adjustment connecting seat of the clamping seat. The first locking nut and the second locking nut abut against both sides of the adjustment connecting plate. The adjustment connecting seat of the first X-direction adjustment mechanism is fixedly connected to the tower, and the adjustment connecting seat of the second X-direction adjustment mechanism is connected to the Y-direction adjustment mechanism.

[0014] Furthermore, the first X-direction adjustment mechanism and the second X-direction adjustment mechanism also include two adjustment guide rods that are parallel to the adjustment bolt, and the two adjustment guide rods are respectively arranged on the upper and lower sides of the adjustment bolt. The adjustment guide rods are fixed in the adjustment connecting seat and movably passed through the adjustment connecting plate.

[0015] Furthermore, the Y-direction adjustment mechanism includes an adjustment gasket and a connecting flange fixed to the tower. The adjustment connecting seat, adjustment gasket and connecting flange of the second X-direction adjustment mechanism are arranged in sequence along the Y direction, and the three are fixedly connected by several fastening bolts.

[0016] Furthermore, a locking mechanism is provided between the first clamping mechanism and the second clamping mechanism and the tower, and the locking mechanism includes two assembly pins extending up and down, and one of the two assembly pins is a pluggable movable pin;

[0017] At the first clamping mechanism: two assembly pins are connected between the clamping seat and the tower of the first clamping mechanism, and a movable pin is pluggably installed on the clamping seat and the tower of the first clamping mechanism;

[0018] At the second clamping mechanism: two assembly pins are connected between the clamping seat of the second clamping mechanism and the adjustment connection seat of the first X-direction adjustment mechanism, and a movable pin is pluggably installed on the clamping seat of the second clamping mechanism and the adjustment connection seat of the first X-direction adjustment mechanism;

[0019] When the movable pin is moved out, the first clamping mechanism and the second clamping mechanism can rotate relative to the tower around the other assembly pin of the two assembly pins except the movable pin.

[0020] Furthermore, the lower end of the assembly pin is detachably connected to a spring pin, and the spring pin is distributed on the lower side of the clamping seat.

[0021] Furthermore, the tower is equipped with a plurality of RFID chips spaced apart in an upper and lower arrangement; or a detection bracket having the same height as the tower is fixed to the outer peripheral side of the tower, and the detection bracket is equipped with a plurality of RFID chips spaced apart in an upper and lower arrangement;

[0022] Wherein, an RFID card reader is installed on the tower, and the RFID card reader can read RFID chips at different heights.

[0023] The present invention also provides a ship surface spraying device, including a movable walking chassis assembly, a horizontally retractable telescopic arm, a spraying device installed at the outer end of the telescopic arm, and the tower lifting device as described above, wherein the lifting drive source and the tower are both fixed on the top of the walking chassis assembly, and the inner end of the telescopic arm is installed on the tower.

[0024] As described above, the tower lifting device and the ship surface spraying device according to the present invention have the following beneficial effects:

[0025] 1. This application sets the tower as a non-liftable structure, and the lifting drive source drives the tower to rise and fall along the tower through the lifting transmission mechanism, thereby reducing the load of the lifting drive source and allowing more options for the lifting drive source.

[0026] 2. Multiple clamping mechanisms are configured between the tower and the tower frame to improve the tower's lifting stability.

[0027] 3. The present application sets the clamping mechanisms distributed on the same side of the tower as movable clamping mechanisms, which are rotatably mounted on the tower and are provided with a locking mechanism between the tower and the clamping mechanism. In this way, when the tower and multiple sets of clamping mechanisms are assembled on the tower, the connection locking state between the movable clamping mechanism and the tower is released by the locking mechanism, and the movable clamping mechanism is then rotatable relative to the tower, so that the movable clamping mechanism rotates in a direction away from the tower and is in an outwardly open state relative to the tower. In this state, the clamping mechanism on the other side of the tower can be easily engaged with the outer periphery of the tower; thereafter, the movable clamping mechanism is rotated in a direction close to the tower and is in an inwardly closed state relative to the tower, and the two clamping wheels in the movable clamping mechanism engage with the outer peripheries of the first mounting mating surface and the second mounting mating surface, and the inwardly closed state of the movable clamping mechanism is locked by the locking mechanism. Therefore, when installing the tower, the present application assembles the tower on the tower from the outer peripheral side of the tower, rather than inserting the tower from the top of a very high tower and assembling it on the tower, which greatly reduces the difficulty of assembling the tower on the tower and facilitates the assembly operation between the tower and the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a ship surface spraying device equipped with a tower lifting device for this application.

[0029] Figure 2 for Figure 1 rear view.

[0030] Figure 3 for Figure 1 Right view of .

[0031] Figures 4 to 6 This is a schematic diagram of the connection between the tower and the tower in this application at different viewing angles, and only one sub-frame of the tower is shown.

[0032] Figure 7 for Figure 5 Enlarged view of circle A.

[0033] Figure 8 for Figure 5 Enlarged view of circle B.

[0034] Figure 9 for Figure 6 Enlarged view of circle C.

[0035] Figure 10 for Figure 6 Enlarged view of circle D.

[0036] Figure 11 for Figure 4 Cross-sectional view at the second clamping mechanism and the fourth clamping mechanism.

[0037] Figure 12 This is a schematic diagram of the structure of the anti-fall device in this application.

[0038] Figure 13 for Figure 12 Half-section view.

[0039] Figure 14 for Figure 13 Schematic diagram of a lift cord break.

[0040] Component number description

[0041] 10 Lifting drive source

[0042] 20 Lifting transmission mechanism

[0043] 21 Lifting cord

[0044] 22 First fixed pulley

[0045] 23 Second fixed pulley

[0046] 24 Third fixed pulley

[0047] 25 movable pulley

[0048] 26 Rope fixing buckle

[0049] 30 Tower

[0050] 31 First main pillar

[0051] 32 Second main column

[0052] 33 subrack body

[0053] 34 Positioning column

[0054] 35 positioning holes

[0055] 36 poles

[0056] 37 First mounting surface

[0057] 38 Second mounting surface

[0058] 40 Tower

[0059] 51 First clamping mechanism

[0060] 52 Second clamping mechanism

[0061] 53 Third clamping mechanism

[0062] 54 Fourth clamping mechanism

[0063] 55 clamp seat

[0064] 56 First clamping wheel

[0065] 57 Second clamping wheel

[0066] 58 Adjusting connecting plate

[0067] 61 Assembly pin

[0068] 62 movable pin

[0069] 63 Spring pin

[0070] 71 First X-direction adjustment mechanism

[0071] 72 Second X-direction adjustment mechanism

[0072] 73 Adjusting bolt

[0073] 74 First locking nut

[0074] 75 Second locking nut

[0075] 76 Adjustment connector

[0076] 77 Adjusting the guide rod

[0077] 81 Y-axis adjustment mechanism

[0078] 82 Adjusting shims

[0079] 83 connecting flange

[0080] 90 Fall prevention device

[0081] 91 Pulley Mounting Arm

[0082] 92 Anti-fall lever arm

[0083] 921 First Arm

[0084] 922 Second Arm

[0085] 93 Anti-fall fixed seat

[0086] 94 limit seat

[0087] 95 first pin

[0088] 96 Second pin

[0089] 97 Third pin

[0090] 98 Fourth pin

[0091] 99 Assisted putter

[0092] 910 anti-fall spring

[0093] 911 Push Plate

[0094] 912 anti-fall limit plate

[0095] 110 Detection bracket

[0096] 120 walking chassis assembly

[0097] 130 Telescopic Arm

[0098] 140 Spraying Equipment

[0099] 150 straight ladder DETAILED DESCRIPTION

[0100] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0101] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0102] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0103] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0104] The present invention relates to a tower lifting device, and a ship surface spraying device including the tower lifting device. The ship surface spraying device is used for automatically spraying paint on the ship surface. During the painting process, the ship surface spraying device as a whole moves and walks along a set route parallel to the curve of the ship surface, so that the ship surface spraying device as a whole moves and walks along the set route. For the convenience of description, in the following embodiments, the walking direction of the ship surface spraying device is defined as the left-right direction, and the horizontal direction perpendicular to the walking direction of the ship surface spraying device is defined as the front-back direction. The front-back direction is also the parallel direction of the ship surface spraying device and the ship surface. Based on this, Figure 3 In the views shown, the left and right sides of the paper are the rear and front directions respectively, the upper and lower sides of the paper are the upper and lower directions respectively, and the front and back sides of the paper are the right and left directions respectively.

[0105] like Figures 1 to 3As shown, the ship surface spraying device involved in the present invention includes a walking chassis assembly 120, a tower lifting device, a telescopic arm 130 that can be horizontally extended and retracted in the front and rear directions, and a spraying equipment 140 installed at the front end of the telescopic arm 130; wherein, the tower lifting device includes a lifting drive source 10, a lifting transmission mechanism 20, a tower 30 extending up and down, and a tower 40 that can be moved up and down on the outer peripheral side of the tower 30, the lifting drive source 10 and the tower 30 are both fixed on the top of the walking chassis assembly 120, the lifting drive source 10 is connected to the tower 40 through the lifting transmission mechanism 20, and the rear end of the telescopic arm 130 is installed on the tower 40. During the painting operation of the ship's exterior, the traveling chassis assembly 120 moves and travels along a moving route parallel to the curve of the ship's exterior, thereby driving the entire ship's exterior spraying device to move and travel along a moving route parallel to the curve of the ship's exterior; the lifting drive source 10 drives the tower 40 to rise and fall along the tower 30 through the lifting transmission mechanism 20, and the telescopic arm 130 and the spraying equipment 140 rise and fall synchronously with the tower 40; the telescopic arm 130 extends forward, driving the spraying equipment 140 to move forward to the target area, and then, combined with the movement of the traveling chassis and the lifting and lowering of the tower 40, the ship's exterior is automatically sprayed with paint. Therefore, in the tower lifting device involved in the present application, the tower 30 is set as a non-liftable structure, and the lifting drive source 10 drives the tower 40 to rise and fall along the tower 30 through the lifting transmission mechanism 20, thereby reducing the load of the lifting drive source 10, so that the lifting drive source 10 has more options.

[0106] Furthermore, if Figures 4 to 6 ,as well as Figure 11As shown, the cross-section of the tower 30 is roughly frame-shaped. The tower 30 is equipped with four main columns extending vertically. The main columns are square steel pipes. Several support rods 36 are fixed between two adjacent main columns. The support rods 36 can be horizontally arranged straight supports or inclined supports. The tower 40 is connected to the two horizontally arranged main columns in the tower 30 through an array clamping mechanism. The two main columns in the tower 30 are defined as the first main column 31 and the second main column 32. The outer surfaces of the first main column 31 and the second main column 32 both have a first mounting surface 37 and a second mounting surface 38. The first mounting surface 37 and the second mounting surface 38 are set at an angle and both extend vertically. At least one clamping mechanism is provided between the tower 40 and the first main column 31, and between the tower 40 and the second main column 32. Each clamping mechanism includes a clamping seat 55, and a first clamping wheel 56 and a second clamping wheel 57, both rotatably mounted on the clamping seat 55. The first clamping wheel 56 slides with the first mounting surface 37, and the second clamping wheel 57 slides with the second mounting surface 38. The first clamping wheel 56 and the second clamping wheel 57 slide with the first mounting surface 37 and the second mounting surface 38, respectively, which are arranged at an angle to each other, thereby limiting the displacement of the tower 40 relative to the tower 30 in non-lifting directions (i.e., the fore-aft and left-right directions).

[0107] Preferably, the first mounting mating surface 37 and the second mounting mating surface 38 are symmetrically arranged front to back, and are both inclined relative to the vertical plane extending front to back. In this way, the force applied by the first clamping wheel 56 to the first mounting mating surface 37 has a component of force toward the center of the tower 40 in the front-to-back direction and the left-to-right direction, and the force applied by the second clamping wheel 57 to the second mounting mating surface 38 has a component of force toward the center of the tower 40 in the front-to-back direction and the left-to-right direction, so that the tower 40 is clamped on the outer periphery of the tower 30 by multiple sets of clamping mechanisms. The inclination angles of the first mounting mating surface 37 and the second mounting mating surface 38 relative to the vertical plane extending front to back are determined according to actual needs; in this embodiment, if Figure 11 As shown, the first mounting mating surface 37 and the second mounting mating surface 38 form an angle of 90°, and the inclination angles of the first mounting mating surface 37 and the second mounting mating surface 38 relative to the vertical plane extending front and back are both 45°.

[0108] Preferably, there are two sets of clamping mechanisms between the tower 40 and the first main column 31: a first clamping mechanism 51 and a second clamping mechanism 52, arranged side by side in an upper and lower arrangement. There are also two sets of clamping mechanisms between the tower 40 and the second main column 32: a third clamping mechanism 53 and a fourth clamping mechanism 54, arranged side by side in an upper and lower arrangement. The first clamping mechanism 51, the second clamping mechanism 52, the third clamping mechanism 53, and the fourth clamping mechanism 54 all include a clamping seat 55, and first and second clamping wheels 56 and 57, rotatably mounted on the clamping seat 55 and arranged at an angle. The first and second clamping wheels 56 and 57 of the first and second clamping mechanisms 51 and 52 respectively slide in engagement with the first and second mounting surfaces 37 and 38 of the first main column 31. The first and second clamping wheels 56 and 57 of the third and fourth clamping mechanisms 53 and 54 respectively slide in engagement with the first and second mounting surfaces 37 and 38 of the second main column 32. In this way, the two clamping wheels in the first clamping mechanism 51 and the second clamping mechanism 52 are both clamped on the outer periphery of the first main column 31, and the two clamping wheels in the third clamping mechanism 53 and the fourth clamping mechanism 54 are both clamped on the outer periphery of the second main column 32, which not only improves the lifting stability of the tower 40, but also improves the connection reliability between the tower 40 and the tower 30.

[0109] In addition, the assembly position of the tower 40 on the outer peripheral side of the tower 30 is determined according to actual needs; in this embodiment, Figures 4 to 6 ,as well as Figure 11 As shown, the tower 40 is mounted on the right side of the tower 30. Of course, in other embodiments, the tower 40 can also be mounted on the front side or the left side of the tower 30. The following description will be based on the example of the tower 40 being mounted on the right side of the tower 30. Figures 4 to 6 ,as well as Figure 11 In the illustrated embodiment, the first main column 31 and the second main column 32 are arranged horizontally side by side in the front-to-back direction, the first main column 31 is distributed on the right rear side of the tower 30, and the second main column 32 is distributed on the right front side of the tower 30. The first clamping mechanism 51 and the second clamping mechanism 52 are both arranged on the rear side of the tower 40, and the third clamping mechanism 53 and the fourth clamping mechanism 54 are both arranged on the front side of the tower 40.

[0110] Among the multiple groups of clamping mechanisms between the tower 40 and the tower 30, at least the clamping mechanisms distributed on the same side of the tower 40 are movable clamping mechanisms. The movable clamping mechanisms are rotatably mounted on the tower 40, and a locking mechanism is provided between the tower 40 and the tower 40. The locking mechanism can position the movable clamping mechanisms in an outwardly open state or an inwardly closed state relative to the tower 40. That is, among the first clamping mechanism 51, the second clamping mechanism 52, the third clamping mechanism 53, and the fourth clamping mechanism 54, at least the first clamping mechanism 51 and the second clamping mechanism 52 are both movable clamping mechanisms, or at least the third clamping mechanism 53 and the fourth clamping mechanism 54 are both movable clamping mechanisms. Therefore, the four groups of clamping mechanisms can be arranged in the following ways: Method 1: Only the first clamping mechanism 51 and the second clamping mechanism 52 are movable clamping mechanisms. Method 2: Only the third clamping mechanism 53 and the fourth clamping mechanism 54 are movable clamping mechanisms. Method 3: The first clamping mechanism 51, the second clamping mechanism 52, the third clamping mechanism 53 and the fourth clamping mechanism 54 are all movable clamping mechanisms. The following description will be made by taking the case where only the first clamping mechanism 51 and the second clamping mechanism 52 are movable clamping mechanisms as an example.

[0111] like Figure 7 and Figure 8As shown, locking mechanisms are provided on the first clamping mechanism 51 and the second clamping mechanism 52. The locking mechanisms allow the first clamping mechanism 51 and the second clamping mechanism 52 to rotate relative to the tower 40 in a manner away from or toward the tower 30, thereby enabling the first clamping mechanism 51 and the second clamping mechanism 52 to open outward in a direction away from the tower 30 and close inward in a direction toward the tower 30. No locking mechanisms are provided on the third clamping mechanism 53 and the fourth clamping mechanism 54. Therefore, the third clamping mechanism 53 and the fourth clamping mechanism 54 cannot rotate relative to the tower 40 and therefore cannot open outward. Based on this structure, the assembly process of the tower 40 on the tower 30 is as follows: 1. Pre-install all four sets of clamping mechanisms on the tower 40; 2. At the first clamping mechanism 51 and the second clamping mechanism 52, release the lock of the locking mechanism on the first clamping mechanism 51 and the second clamping mechanism 52, allowing the first clamping mechanism 51 and the second clamping mechanism 52 to rotate relative to the tower 40, thereby making the first clamping mechanism 51 and the second clamping mechanism 52 in an outwardly open state; 3. Lift the tower 40 with the help of a crane. Since the first clamping mechanism 51 and the second clamping mechanism 52 are both opened outward, the third clamping mechanism 53 and the fourth clamping mechanism 54 can be clamped on the outer periphery of the second main column 32, and the two clamping wheels in the third clamping mechanism 53 and the fourth clamping mechanism 5 4. Both clamping wheels in the first clamping mechanism 51 and the second clamping mechanism 52 are engaged with the outer periphery of the second main column 32. 4. Both the first clamping mechanism 51 and the second clamping mechanism 52 are closed inward until they are stuck to the outer periphery of the first main column 31. The two clamping wheels in the first clamping mechanism 51 and the two clamping wheels in the second clamping mechanism 52 are engaged with the outer periphery of the first main column 31. 5. The locking mechanism is restored to lock the first clamping mechanism 51 and the second clamping mechanism 52, preventing them from rotating relative to the tower 40. This locks the first clamping mechanism 51 and the tower 40, and the second clamping mechanism 52 and the tower 40, maintaining the inwardly closed state of the first clamping mechanism 51 and the second clamping mechanism 52. At this point, the tower 40 is assembled on the outer periphery of the tower 30 in a liftable manner via four sets of clamping mechanisms.

[0112] The present application configures the two sets of clamping mechanisms on the same side of the tower 40 to be openable movable structures, thereby facilitating the installation of the tower 40, which is already equipped with four sets of clamping mechanisms, on the tower 30 from the outer peripheral side of the tower 30, rather than inserting and installing it on the tower 30 from the top of the very high tower 30. This greatly reduces the difficulty of installing the tower 40 on the tower 30 and facilitates the assembly operation between the tower 40 and the tower 30.

[0113] Furthermore, if Figures 4 to 6As shown, the first clamping mechanism 51 is higher than the second clamping mechanism 52, the second clamping mechanism 52 is higher than the third clamping mechanism 53 and the fourth clamping mechanism 54, and the third clamping mechanism 53 and the fourth clamping mechanism 54 are of the same height. Combining the cantilever structure formed after the telescopic arm 130 is installed on the tower 40, through force analysis, it can be seen that the diagonally distributed first clamping mechanism 51 and the fourth clamping mechanism 54 are subjected to greater force, and the force on the first clamping mechanism 51 is even greater, so the wheel pressure of the first clamping wheel 56 and the second clamping wheel 57 at the first clamping mechanism 51 is the largest. Preferably, the present application sets the first clamping mechanism 51 to be higher than the second clamping mechanism 52, which not only provides installation space for the anti-fall device 90 described below on the tower 40, but also increases the torque and avoids stress concentration at the first clamping mechanism 51. Based on this, the first clamping mechanism 51 is used as the adjustment reference after the tower 40 is assembled, and the positions of the second clamping mechanism 52, the third clamping mechanism 53 and the fourth clamping mechanism 54 are fine-tuned; that is, the two clamping wheels in the first clamping mechanism 51 have no adjustment amount, thereby improving the structural strength of the maximum force-bearing part, but the two clamping wheels in the second clamping mechanism 52, the third clamping mechanism 53 and the fourth clamping mechanism 54 have adjustment amounts, so that the two clamping wheels in each clamping mechanism can reliably contact and cooperate with the tower 30, eliminating the influence of component processing errors on assembly accuracy. Specifically: Figure 8 As shown, a first X-direction adjustment mechanism 71 is provided between the clamping seat 55 of the second clamping mechanism 52 and the tower 40. The first X-direction adjustment mechanism 71 is used to adjust the X-direction position of the second clamping mechanism 52 relative to the tower 40, where the X-direction is the left-right direction. Figure 9 and Figure 10 As shown, a second X-direction adjustment mechanism 72 and a Y-direction adjustment mechanism 81 connected to each other are provided between the clamping seat 55 of the third clamping mechanism 53 and the clamping seat 55 of the fourth clamping mechanism 54 and the tower 40. The second X-direction adjustment mechanism 72 is used to adjust the X-direction position of the third clamping mechanism 53 and the fourth clamping mechanism 54 relative to the tower 40, and the Y-direction adjustment mechanism 81 is used to adjust the Y-direction position of the third clamping mechanism 53 and the fourth clamping mechanism 54 relative to the tower 40, where the Y-direction is the front-back direction.

[0114] Furthermore, the first X-direction adjustment mechanism 71 and the second X-direction adjustment mechanism 72 have the same structure, and the preferred structure is as follows: Figures 8 to 10As shown, the first X-direction adjustment mechanism 71 and the second X-direction adjustment mechanism 72 both include an adjustment bolt 73 extending axially in the left and right directions of the X-direction, a first locking nut 74 and a second locking nut 75 threadedly connected to the adjustment bolt 73, and an adjustment connecting seat 76. An adjustment connecting plate 58 is fixedly installed in the clamping seat 55 of the second clamping mechanism 52, the third clamping mechanism 53, and the fourth clamping mechanism 54. The adjustment bolt 73 passes through the adjustment connecting plate 58 of the clamping seat 55 and the adjustment connecting seat 76. The first locking nut 74 and the second locking nut 75 abut against the left and right sides of the adjustment connecting plate 58. At the second clamping mechanism 52: As shown in FIG. Figure 8 As shown, the adjustment connection seat 76 of the first X-axis adjustment mechanism 71 is fixedly connected to the tower 40 by welding. At the third clamping mechanism 53 and the fourth clamping mechanism 54: Figure 9 and Figure 10 As shown, the adjustment connection base 76 of the second X-axis adjustment mechanism 72 is connected to the Y-axis adjustment mechanism 81, and the Y-axis adjustment mechanism 81 is connected to the tower 40. In the first X-axis adjustment mechanism 71 and the second X-axis adjustment mechanism 72, by loosening the first locking nut 74 and the second locking nut 75, the gap between each clamping base 55 and the adjustment connection base 76 in the left-right direction can be adjusted, thereby adjusting the left-right position of each clamping mechanism relative to the adjustment connection base 76 and the tower 40.

[0115] Preferably, if Figures 8 to 10 As shown, both the first X-axis adjustment mechanism 71 and the second X-axis adjustment mechanism 72 further include two adjustment guide rods 77, both parallel to the adjustment bolt 73. The two adjustment guide rods 77 are respectively disposed on the upper and lower sides of the adjustment bolt 73. The adjustment guide rods 77 are fixed in the adjustment connection seat 76 and movably pass through the adjustment connection plate 58. During the process of adjusting the left and right positions of the clamping mechanisms, the two adjustment guide rods 77 provide a good guide function, improving adjustment accuracy.

[0116] Furthermore, at the third clamping mechanism 53 and the fourth clamping mechanism 54, the preferred structure of the Y-direction adjustment mechanism 81 is as follows: Figure 9 and Figure 10 As shown, the Y-axis adjustment mechanism 81 includes an adjustment washer 82 and a connecting flange 83 welded to the tower 40. The adjustment connection base 76, adjustment washer 82, and connecting flange 83 of the second X-axis adjustment mechanism 72 are arranged sequentially along the Y-axis and fixedly connected by a plurality of fastening bolts. The number and thickness of the adjustment washer 82 are determined according to actual needs. By selecting different numbers or thicknesses of adjustment washer 82, the fore-aft position of the adjustment connection base 76 of the second X-axis adjustment mechanism 72 can be adjusted, thereby adjusting the fore-aft position of the third clamping mechanism 53 and the fourth clamping mechanism 54 relative to the tower 40.

[0117] Furthermore, the preferred structure of the locking mechanism at the first clamping mechanism 51 and the second clamping mechanism 52 is as follows: Figure 7 and Figure 8 As shown, the locking mechanism includes two assembly pins 61 extending vertically, one of which is a pluggable movable pin 62. Specifically, at the first clamping mechanism 51, the two assembly pins 61 are connected between the clamping seat 55 of the first clamping mechanism 51 and the tower 40, and the movable pin 62 is pluggable and installed in the clamping seat 55 of the first clamping mechanism 51 and the tower 40. When the movable pin 62 is removed from the clamping seat 55 of the first clamping mechanism 51 and the tower 40, the locking mechanism is released from the first clamping mechanism 51, and the clamping seat 55 of the first clamping mechanism 51 can rotate relative to the tower 40 about the other of the two assembly pins 61 except the movable pin 62, so that the first clamping mechanism 51 moves away from or closer to the tower 30, and opens outward or closes inward accordingly. At the second clamping mechanism 52: two assembly pins 61 are connected between the clamping seat 55 of the second clamping mechanism 52 and the adjustment connecting seat 76 of the first X-direction adjustment mechanism 71, and the movable pin 62 is pluggably installed on the clamping seat 55 of the second clamping mechanism 52 and the adjustment connecting seat 76 of the first X-direction adjustment mechanism 71; when the movable pin 62 is removed from the clamping seat 55 of the second clamping mechanism 52 and the adjustment connecting seat 76 of the first X-direction adjustment mechanism 71, the locking mechanism is released from the locking of the second clamping mechanism 52, and the clamping seat 55 of the second clamping mechanism 52 can rotate around the other assembly pin 61 of the two assembly pins 61 except the movable pin 62 relative to the adjustment connecting seat 76 of the first X-direction adjustment mechanism 71 and the tower 40, so that the second clamping mechanism 52 moves away from or approaches the tower 30, and opens outward or closes inward accordingly. After the installation of the tower 40 is completed, the movable pin 62 is reinserted into the clamping seat 55 of the first clamping mechanism 51 and the tower 40 to restore the locking mechanism to the first clamping mechanism 51; the movable pin 62 is reinserted into the clamping seat 55 of the second clamping mechanism 52 and the adjustment connecting seat 76 of the first X-direction adjustment mechanism 71 to restore the locking mechanism to the second clamping mechanism 52.

[0118] Furthermore, if Figure 7 and Figure 8 As shown, at the first clamping mechanism 51 and the second clamping mechanism 52 , the lower ends of the two assembly pins 61 are detachably connected to spring pins 63 , which are distributed on the lower side of the clamping seat 55 to facilitate the insertion and removal of the movable pins 62 .

[0119] Furthermore, if Figures 1 to 3As shown, the tower 30 includes multiple sub-frames 33 connected up and down by fastening bolts, which facilitates the transportation of the tower 30. In this embodiment, the tower 30 has 5 sub-frames 33, the bottom sub-frame 33 is the foundation, and the height is 12m, and the heights of the remaining 4 sub-frames 33 are all 6m, so the total height of the tower 30 is 36m. In other embodiments, sub-frames 33 and towers 30 of other heights can also be selected. The sub-frame 33 is a hollow structure, so that the tower 30 is also a hollow structure, and a straight ladder 150 extending up and down is installed inside the tower 30. Preferably, as Figures 4 to 6 As shown, in the two adjacent sub-frames 33, the bottom of the upper sub-frame 33 is integrally provided with a positioning column 34 that protrudes downward, and the top of the lower sub-frame 33 is provided with a positioning hole 35. The positioning column 34 is inserted into the positioning hole 35 to facilitate the splicing of the two adjacent sub-frames 33. The positioning column 34 and the positioning hole 35 are preferably respectively provided on the main column of each sub-frame 33. In addition, the tower 30 is installed with several RFID chips spaced apart vertically; or, as shown in FIG. Figure 3 As shown, a detection bracket 110 of the same height as the tower 30 is fixed to the right side of the tower 30, and several RFID chips spaced apart from each other are installed on the detection bracket 110; wherein, an RFID card reader is installed on the tower 40. When the tower 40 is at different heights, the RFID chip corresponding to the height is read by the RFID card reader, which can accurately feedback the real-time height of the tower 40 and improve the reliability of the automatic painting operation.

[0120] Furthermore, if Figures 1 to 4As shown, the lifting drive source 10 is a winch, and the lifting transmission mechanism 20 includes a lifting rope 21 wound on the winch, and a first fixed pulley 22, a second fixed pulley 23, a third fixed pulley 24, a movable pulley 25, and a rope fixing buckle 26 arranged in sequence along the line path of the lifting rope 21; the first fixed pulley 22 is fixed to the left side of the tower 30, and the second fixed pulley 23 is installed on the left side of the top of the tower 30, and the first fixed pulley 22 and the second fixed pulley 23 are aligned in the vertical direction; the third fixed pulley 24 is installed on the right side of the top of the tower 30, The second and third fixed pulleys 23 and 24 are aligned horizontally. The movable pulley 25 is mounted on the top of the tower 40. The rope fixing buckle 26 is mounted on the right side of the top of the tower 30 and is located in front of the second fixed pulley 23. The rear sides of the third fixed pulley 24 and the movable pulley 25 are vertically aligned, and the front sides of the movable pulley 25 and the rope fixing buckle 26 are vertically aligned. The lifting rope 21 drawn from the winch passes through the first, second, third, and movable pulleys 22, 23, 24, and 25 in sequence before being fixed to the rope fixing buckle 26. In this way, when the winch releases the lifting rope 21, the movable pulley 25 descends, thereby driving the tower 40 downward along the tower 30. Conversely, when the winch reels in the lifting rope 21, the movable pulley 25 ascends, thereby driving the tower 40 upward along the tower 30. Preferably, the hoist rope 21 is a steel wire rope. The hoist rope 21 passes through the inner side of the first fixed pulley 22, the upper side of the second fixed pulley 23, and the upper side of the third fixed pulley 24. Limit rods are installed on the upper sides of the second fixed pulley 23 and the third fixed pulley 24, as well as on both the front and rear sides of the movable pulley 25 to prevent the hoist rope 21 from escaping from the pulleys. The first fixed pulley 22 is a lateral pulley that prevents the hoist rope 21 from swaying and pushes the hoist rope 21 toward the tower 30, thereby guiding and tensioning the rope.

[0121] Furthermore, if Figure 4 and Figure 6 As shown, the tower lifting device also includes an anti-fall device 90, which is used to prevent the tower 40 from falling when the lifting rope 21 breaks accidentally, thereby improving the safety factor. The first clamping mechanism 51 and the third clamping mechanism 53 are arranged in a staggered manner, so that an empty area is formed on the front upper side of the tower 40. This empty area is the installation area of ​​the anti-fall device 90. Figure 12 and Figure 13As shown, the anti-fall device 90 includes a pulley mounting arm 91, an anti-fall lever arm 92, and an anti-fall fixing seat 93 and a limit seat 94 all welded and fixed to the tower 40; the movable pulley 25 is mounted on the upper end of the pulley mounting arm 91, and the lower end of the pulley mounting arm 91 is rotatably connected to the upper end of the anti-fall lever arm 92 through a first pin shaft 95 extending forward and backward, and the first pin shaft 95 constitutes a rotation fulcrum for relative rotation between the pulley mounting arm 91 and the anti-fall lever arm 92; the anti-fall lever arm 92 is rotatably mounted on the anti-fall fixing seat 93 through a second pin shaft 96 extending forward and backward. 3. The second pin 96 constitutes the rotation fulcrum of the anti-fall lever arm 92; the first pin 95 and the second pin 96 are staggered, and the first pin 95 is farther away from the tower 30 than the second pin 96, that is, the first pin 95 is located to the upper right of the second pin 96; the anti-fall lever arm 92 is a bent rod, and the anti-fall lever arm 92 has a first arm portion 921 distributed on the upper side of the second pin 96, and a second arm portion 922 distributed on the lower side of the second pin 96. The tower 30, the second arm 922 and the limit seat 94 are arranged in sequence from left to right.

[0122] When the lifting rope 21 is not broken, the lifting rope 21 always pulls the movable pulley 25, and the lifting rope 21 applies an upward pulling force to the movable pulley 25, and this pulling force also pulls the pulley mounting arm 91 and the anti-fall lever arm 92 upward; Figure 13 Taking the illustrated view as an example, the anti-fall lever arm 92 rotates clockwise around the second pin 96 under the action of the aforementioned pulling force, thereby driving the second arm portion 922 of the anti-fall lever arm 92 to rotate toward the stop seat 94. At this time, the second arm portion 922 of the anti-fall lever arm 92 separates from the tower 30 and abuts the stop seat 94. Therefore, under the combined action of the pulling force of the lifting rope 21 and the stop seat 94, the anti-fall lever arm 92 remains securely in contact with the stop seat 94, and the pulley mounting arm 91 is in a vertical position.

[0123] When the lifting rope 21 breaks, the tower 40 begins to fall, and at the same time, the pulling force applied by the lifting rope 21 to the movable pulley 25 disappears; Figure 13 Taking the view angle shown as an example, under the action of gravity of the movable pulley 25, the anti-fall lever arm 92 rotates counterclockwise around the second pin 96, which drives the second arm portion 922 of the anti-fall lever arm 92 to rotate toward the tower 30, and the end of the anti-fall lever arm 92 pops out and is stuck in the tower 30 and is engaged with the support rod 36 of the tower 30, as shown in FIG. Figure 14 As shown, further falling of the tower 40 is limited, thereby improving safety.

[0124] Preferably, if Figure 12 and Figure 13As shown, the anti-fall device 90 also includes a third pin 97 fixed to the anti-fall lever arm 92, a fourth pin 98 fixed to the anti-fall fixing seat 93, an auxiliary push rod 99 movably inserted into the fourth pin 98, an anti-fall spring 910 sleeved on the auxiliary push rod 99, and a push plate 911 fixed to the end of the auxiliary push rod 99. The third pin 97 and the fourth pin 98 both extend forward and backward. The third pin 97 is located below the second pin 96, and the fourth pin 98 is located to the right of the anti-fall lever arm 92. The right and left ends of the anti-fall spring 910 abut against the fourth pin 98 and the push plate 911, respectively, and the push plate 911 abuts against the third pin 97. When the lifting rope 21 is not broken, the anti-fall lever arm 92 tends to rotate clockwise, causing the anti-fall spring 910 to remain compressed. When the lifting rope 21 breaks, the anti-fall lever arm 92 rotates counterclockwise, and the anti-fall spring 910 is released, further driving the anti-fall lever arm 92 to rotate counterclockwise, more reliably pushing the lower end of the anti-fall lever arm 92 to the left, causing it to be stuck on the support rod 36 of the tower 30.

[0125] Furthermore, if Figure 12 As shown, the anti-fall device 90 further includes an anti-fall limiting plate 912 fixed to the top of the anti-fall fixing seat 93. The anti-fall limiting plate 912 is located on the side of the first arm 921 facing away from the tower 30, that is, the anti-fall limiting plate 912 is located on the right side of the first arm 921. The anti-fall limiting plate 912 is tilted. Figure 13 As shown, the first arm 921 is separated from the anti-falling limit plate 912 and the two are not in contact. Figure 14 As shown, the second arm portion 922 of the anti-fall lever arm 92 pops out and is clamped on one of the support rods 36 of the tower 30. At the same time, the first arm portion 921 of the anti-fall lever arm 92 abuts against the anti-fall limit plate 912, limiting the second arm portion 922 of the anti-fall lever arm 92 from further rotation and disengaging from the support rod 36, thereby improving the anti-fall reliability.

[0126] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0127] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A tower lifting device, characterized in that: The invention comprises a lifting drive source (10), a lifting transmission mechanism (20), a tower (30) extending vertically, and a tower (40) mounted on the outer peripheral side of the tower (30) so as to be movable vertically. The lifting drive source (10) is connected to the tower (40) through the lifting transmission mechanism (20) and is used to drive the tower (40) to move up and down along the tower (30). The tower (30) is provided with a first main column (31) and a second main column (32) arranged horizontally side by side, and the outer surfaces of the first main column (31) and the second main column (32) have a first mounting mating surface (37) and a second mounting mating surface (38), the first mounting mating surface (37) and the second mounting mating surface (38) are arranged at an angle and both extend vertically, and at least one group of clamping mechanisms is provided between the tower (40) and the first main column (31), and between the tower (40) and the second main column (32), each group of the clamping mechanisms includes a clamping seat (55), and a first clamping wheel (56) and a second clamping wheel (57) both rotatably mounted on the clamping seat (55), the first clamping wheel (56) and the first mounting mating surface (37) are in sliding engagement, and the second clamping wheel (57) and the second mounting mating surface (38) are in sliding engagement, for limiting the displacement of the tower (40) relative to the tower (30) in a non-lifting direction; Among the multiple groups of clamping mechanisms between the tower (40) and the tower (30), at least the clamping mechanisms distributed on the same side of the tower (40) are movable clamping mechanisms. The movable clamping mechanisms are rotatably mounted on the tower (40) and are provided with a locking mechanism between the movable clamping mechanisms and the tower (40). The locking mechanism can place the movable clamping mechanisms in an outwardly open state or an inwardly closed state relative to the tower (40).

2. The tower lifting device according to claim 1, characterized in that: There are two groups of clamping mechanisms between the tower (40) and the first main column (31), namely, a first clamping mechanism (51) and a second clamping mechanism (52) arranged side by side in an upper and lower direction; there are two groups of clamping mechanisms between the tower (40) and the second main column (32), namely, a third clamping mechanism (53) and a fourth clamping mechanism (54) arranged side by side in an upper and lower direction; Among the first clamping mechanism (51), the second clamping mechanism (52), the third clamping mechanism (53) and the fourth clamping mechanism (54), at least the first clamping mechanism (51) and the second clamping mechanism (52) are both movable clamping mechanisms, or at least the third clamping mechanism (53) and the fourth clamping mechanism (54) are both movable clamping mechanisms.

3. The tower lifting device according to claim 2, characterized in that: Among the first clamping mechanism (51), the second clamping mechanism (52), the third clamping mechanism (53) and the fourth clamping mechanism (54), the wheel pressure of the first clamping wheel (56) and the second clamping wheel (57) at the first clamping mechanism (51) is the largest; A first X-direction adjustment mechanism (71) is provided between the clamping seat (55) of the second clamping mechanism (52) and the tower (40), and the first X-direction adjustment mechanism (71) is used to adjust the X-direction position of the second clamping mechanism (52) relative to the tower (40); A second X-direction adjustment mechanism (72) and a Y-direction adjustment mechanism (81) connected to the tower (40) are provided between the clamping seat (55) of the third clamping mechanism (53) and the clamping seat (55) of the fourth clamping mechanism (54). The second X-direction adjustment mechanism (72) is used to adjust the X-direction position of the third clamping mechanism (53) and the fourth clamping mechanism (54) relative to the tower (40), and the Y-direction adjustment mechanism (81) is used to adjust the Y-direction position of the third clamping mechanism (53) and the fourth clamping mechanism (54) relative to the tower (40).

4. The tower lifting device according to claim 3, characterized in that: The first X-direction adjustment mechanism (71) and the second X-direction adjustment mechanism (72) both include an adjustment bolt (73) extending axially in the X-direction, a first locking nut (74) and a second locking nut (75) threadedly connected to the adjustment bolt (73), and an adjustment connecting seat (76); an adjustment connecting plate (58) is fixedly provided in the clamping seat (55) of the second clamping mechanism (52), the third clamping mechanism (53) and the fourth clamping mechanism (54); the adjustment bolt (73) is passed through the adjustment connecting plate (58) and the adjustment connecting seat (76) of the clamping seat (55); the first locking nut (74) and the second locking nut (75) abut against both sides of the adjustment connecting plate (58); the adjustment connecting seat (76) of the first X-direction adjustment mechanism (71) is fixedly connected to the tower (40); and the adjustment connecting seat (76) of the second X-direction adjustment mechanism (72) is connected to the Y-direction adjustment mechanism (81).

5. The tower lifting device according to claim 4, characterized in that: The first X-direction adjustment mechanism (71) and the second X-direction adjustment mechanism (72) also include two adjustment guide rods (77) that are parallel to the adjustment bolt (73). The two adjustment guide rods (77) are respectively arranged on the upper and lower sides of the adjustment bolt (73). The adjustment guide rods (77) are fixed in the adjustment connecting seat (76) and movably penetrate the adjustment connecting plate (58).

6. The tower lifting device according to claim 4, characterized in that: The Y-direction adjustment mechanism (81) includes an adjustment gasket (82) and a connecting flange (83) fixed to the tower (40); the adjustment connecting seat (76), the adjustment gasket (82) and the connecting flange (83) of the second X-direction adjustment mechanism (72) are arranged in sequence along the Y direction and are fixedly connected by a plurality of fastening bolts.

7. The tower lifting device according to claim 4, characterized in that: A locking mechanism is provided between the first clamping mechanism (51) and the second clamping mechanism (52) and the tower (40), and the locking mechanism comprises two assembly pins (61) extending up and down, and one of the two assembly pins (61) is a pluggable movable pin (62); at the first clamping mechanism (51): the two assembly pins (61) are connected between the clamping seat (55) of the first clamping mechanism (51) and the tower (40), and the movable pin (62) is pluggably installed on the clamping seat (55) of the first clamping mechanism (51) and the tower (40); At the second clamping mechanism (52), two assembly pins (61) are connected between the clamping seat (55) of the second clamping mechanism (52) and the adjustment connection seat (76) of the first X-direction adjustment mechanism (71), and the movable pin (62) is pluggably installed on the clamping seat (55) of the second clamping mechanism (52) and the adjustment connection seat (76) of the first X-direction adjustment mechanism (71); When the movable pin (62) is moved out, the first clamping mechanism (51) and the second clamping mechanism (52) can rotate relative to the tower (40) around the other assembly pin (61) of the two assembly pins (61) except the movable pin (62).

8. The tower lifting device according to claim 7, characterized in that: The lower end of the assembly pin (61) is detachably connected to a spring pin (63), and the spring pin (63) is distributed on the lower side of the clamping seat (55).

9. The tower lifting device according to claim 1, characterized in that: The tower (30) is mounted with a plurality of RFID chips spaced apart in an upper and lower arrangement; or a detection bracket (110) having the same height as the tower (30) is fixed to the outer peripheral side of the tower (30), and the detection bracket (110) is mounted with a plurality of RFID chips spaced apart in an upper and lower arrangement; Wherein, an RFID card reader is installed on the tower (40), and the RFID card reader can read RFID chips at different heights.

10. A ship surface spraying device, characterized in that: The invention comprises a movable walking chassis assembly (120), a horizontally retractable telescopic arm (130), a spraying device (140) installed at the outer end of the telescopic arm (130), and a tower lifting device according to any one of claims 1 to 9, wherein the lifting drive source (10) and the tower (30) are both fixed on the top of the walking chassis assembly (120), and the inner end of the telescopic arm (130) is installed on the tower (40).

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