Counterweight device for storage tank construction and platform thereof

Abstract

The utility model discloses a counter weight device for storage tank construction and a platform thereof, which comprises a storage tank body, two bases mounted on the storage tank body, a hoisting support mounted on the bases, a fixing mechanism mounted on the hoisting support, a locking mechanism mounted on the fixing mechanism, a shielding mechanism mounted on the hoisting support, and a lifting mechanism mounted on the shielding mechanism. The lifting mechanism comprises two vertical rods, and the two vertical rods are installed on the two bases respectively. Through the arrangement of the bases, the vertical rods, a transverse adjusting rod, a hanging basket, a fixing plate, a partition plate, an inserting rod, a balancing weight and other structures, the angle adjusting mechanism is installed on the shielding mechanism, and the angle adjusting mechanism is installed on the angle adjusting mechanism. The transverse adjusting rod is fixed in use through the balancing weight at one end of the transverse adjusting rod, so that the stability and safety of the hanging basket in the use process can be effectively guaranteed, meanwhile, the balancing weight can be rapidly installed on the partition plate through the multiple inserting rods installed on the partition plate, and it can be guaranteed that in the use process of the balancing weight, the safety of the hanging basket is guaranteed. And the phenomenon of scattering is avoided.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment for storage tanks, and more specifically, it is a counterweight device and platform for construction of storage tanks. Background Technology

[0002] Storage tanks are containers that can hold and preserve substances. In the industrial field, storage tanks are widely used in many industries such as petroleum, chemical, food processing, and pharmaceuticals to store various liquid, gaseous, or solid raw materials, intermediate products, or finished products. In daily life, storage tanks are more often used to store food, drinking water, and other necessities. To ensure the normal use of storage tanks and extend their service life, users need to regularly inspect and maintain them. This includes checking the integrity of the tank body, the strength of the welds, and the sealing performance of the seals. At the same time, users also need to select appropriate cleaning methods and cleaning agents to clean and disinfect the storage tanks according to the properties of the stored medium and the usage environment.

[0003] While existing storage tanks can be assembled using brackets during construction, counterweights are used to secure one end of the brackets. However, these counterweights are not properly secured and can easily scatter, causing the suspended platform to become unstable and potentially dangerous. Furthermore, the existing suspended platforms lack any protective mechanisms, making workers vulnerable to injury from falling objects.

[0004] Therefore, based on the above, and drawing on years of experience in design, development and actual manufacturing in the relevant industry, the inventor of the utility model has researched and improved the existing structure and its shortcomings, and provided a counterweight device and platform for the construction of storage tanks, in order to achieve a more practical value. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a counterweight device and platform for the construction of storage tanks, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a counterweight device and platform for construction of a storage tank, comprising a storage tank body, two bases mounted on the storage tank body, a lifting bracket mounted on the bases, a fixing mechanism mounted on the lifting brackets, a locking mechanism mounted on the fixing mechanism, a shielding mechanism mounted on the lifting brackets, and an angle adjustment mechanism mounted on the shielding mechanism. The lifting mechanism includes two uprights, which are respectively mounted on the two bases. A transverse adjustment rod is slidably mounted on the uprights, and a threaded hole is provided on the transverse adjustment rod. A bolt is threadedly mounted on the uprights, and one end of the bolt is threadedly mounted on the transverse adjustment rod.

[0007] A fixing plate is installed on one end of the horizontal adjusting rod, a plurality of fixing blocks are installed on the fixing plate, a partition is installed on the plurality of fixing blocks, a plurality of plug-in rods are installed on the partitions, and a plurality of counterweights are movably installed on the plurality of plug-in rods respectively. A transition buckle is installed on the other end of the horizontal adjusting rod, a safety cable is installed on the transition buckle, and a basket is installed on the other end of the two safety cables.

[0008] The fixing mechanism includes two movable rods, both of which are slidably mounted on the partition plate. Each of the two movable rods is slidably mounted with a sliding rod. Each of the two sliding rods has a connecting plate at its top. One of the connecting plates has two pressure plates, and the other connecting plate has a positioning plate. The two pressure plates and the positioning plate are in contact with the upper surface of the counterweight.

[0009] Preferably, the shielding mechanism includes two upright plates, both of which are mounted on the suspended platform. A rotating shaft is rotatably mounted on each of the two upright plates, and a protective frame is mounted on each of the two rotating shafts. A rotating shaft is rotatably mounted on one end of the protective frame, and a shielding curtain is sleeved on the rotating shaft. A movable shaft is mounted on the shielding curtain, and a connecting plate is mounted on the movable shaft. A movable handle is mounted on the connecting plate, and two locking blocks are mounted on the bottom side of the protective frame. The movable handle is movably mounted on the two locking blocks.

[0010] Preferably, a U-shaped block is installed on the top of the storage tank body, and a lateral adjustment rod is movably installed on the U-shaped block.

[0011] Preferably, a forward and reverse servo motor is mounted on the fixed plate, and a drive shaft is mounted on the forward and reverse servo motor. The drive shaft is rotatably mounted on the partition plate.

[0012] Preferably, a gear is sleeved on the drive shaft, and toothed plates mesh on both sides of the gear. A retaining block is slidably installed on both toothed plates, and both retaining blocks are installed on a fixed plate.

[0013] Preferably, a transmission plate is installed on each of the two toothed plates, and a cross slider is installed on each of the two transmission plates. The two cross sliders are respectively installed on two movable rods.

[0014] Preferably, the locking mechanism includes two limiting rods, both of which are slidably mounted on the movable rod. The movable rod has two sets of insertion slots, and the two limiting rods are respectively slidably mounted on the inner walls of the two sets of insertion slots.

[0015] Preferably, locking springs are installed on both sides of the limiting rod, and the other ends of the two locking springs are installed on the movable rod.

[0016] Preferably, positioning blocks are installed on both sides of the protective frame, and a return spring is installed on each of the two positioning blocks. A transition block is installed on the other end of each of the two return springs, and a connecting rope is installed on each of the two transition blocks. A spool is sleeved on both ends of the rotating shaft, and the two connecting ropes are wound around the two spools respectively.

[0017] Preferably, the angle adjustment mechanism includes two drive handles, both of which are mounted on the protective frame. A pin is slidably mounted on the drive handle. The protective frame has multiple deflection slots, and the pin is movably mounted on the inner wall of the deflection slot.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] This utility model incorporates a base, uprights, horizontal adjustment rods, a suspended platform, a fixing plate, a partition, plug-in rods, and counterweights. The counterweights at one end of the horizontal adjustment rods secure the rods, effectively ensuring the stability and safety of the suspended platform during use. Furthermore, the multiple plug-in rods installed on the partitions allow for quick installation of the counterweights, preventing them from scattering during use.

[0020] This utility model incorporates a forward and reverse servo motor, gears, toothed plates, movable rods, sliding rods, connecting plates, lower pressure plates, and positioning plates. After the counterweight is installed on the plug-in rod, the forward and reverse servo motor drives the lower pressure plate and positioning plate on the connecting plate to move, so that they can be perfectly matched with the position of the counterweight, making it easy to fix the counterweight from the top. Furthermore, the forward and backward movement of the lower pressure plate and positioning plate can accommodate the fixing of multiple rows of counterweights.

[0021] This utility model, by setting a limiting rod, a plug slot, and a locking spring structure, allows the sliding rod to be adjusted up and down during the installation of the counterweight to adapt to the placement height of the counterweight. Then, by inserting the limiting rod into the plug slot, the position of the sliding rod can be easily fixed. At the same time, the locking spring increases the stability of the limiting rod insertion and prevents the limiting rod from automatically retracting from the plug slot during use.

[0022] This utility model incorporates a rotating shaft, a blind curtain, a moving handle, a locking block, a return spring, a connecting rope, and a reel. During the use of the suspended platform, the blind curtain can be easily unfolded and fixed by simply pulling the moving handle. When not in use, the return spring's elastic restoring force drives the rotating shaft to rotate in the opposite direction, allowing the blind curtain to be automatically retracted. Thus, the blind curtain can be used for protection and sunshade.

[0023] This invention incorporates a drive handle, a pin, and a deflection groove structure. When the sunshade is unfolded, rotating the drive handle drives the protective frame to rotate the groove, allowing for convenient angle adjustment of the sunshade according to the sun's deflection, thereby effectively increasing the sun protection effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the transverse adjusting rod, partition, and counterweight of this utility model;

[0026] Figure 3 This is a schematic diagram of the linkage plate, lower pressure plate, and positioning plate of this utility model;

[0027] Figure 4 This is a schematic diagram of the movable rod, sliding rod, and connecting plate of this utility model;

[0028] Figure 5 This is a schematic diagram of the forward and reverse reversible servo motor, gear, and gear plate of this utility model.

[0029] Figure 6 This is a cross-sectional structural diagram of the movable rod and sliding rod of this utility model;

[0030] Figure 7 This is a schematic diagram of the suspended basket, protective frame, and shielding curtain of this utility model;

[0031] Figure 8 For the present utility model Figure 7 Enlarged structural diagram at point A in the middle;

[0032] Figure 9 This is a schematic diagram of the protective frame, snap-fit ​​block, and moving handle structure of this utility model;

[0033] Figure 10 This is a schematic diagram of the protective frame, rotating shaft, and shielding curtain structure of this utility model.

[0034] The attached diagram is labeled as follows: 1. Storage tank body; 2. Base; 3. Upright pole; 31. Lateral adjustment rod; 32. Adapter buckle; 33. Safety cable; 34. Suspended basket; 35. Fixing plate; 36. Fixing block; 37. Partition plate; 38. Connecting rod; 39. Counterweight block; 310. U-shaped block; 311. Threaded hole; 312. Bolt; 4. Movable rod; 41. Sliding rod; 42. Linkage plate; 43. Lower pressure plate; 44. Positioning plate; 45. Forward and reverse servo motor; 46. Drive shaft; 47. Gear; 48. Toothed plate; 49. Retaining block; 410. Transmission plate; 411. Cross slider; 5. Limiting rod; 51. Insertion slot; 52. Locking spring; 6. Vertical plate; 61. Protective frame; 62. Rotating shaft; 63. Screen curtain; 64. Moving shaft; 65. Connecting plate; 66. Moving handle; 67. Snap-fit ​​block; 68. Positioning block; 69. Return spring; 610. Adapter block; 611. Connecting rope; 612. Spool; 613. Rotating shaft; 7. Drive handle; 71. Pin; 72. Deflection slot. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1: As shown in the attached document Figure 1 To be continued Figure 10The illustrated counterweight device and platform for construction of a storage tank include a storage tank body 1, on which two bases 2 are mounted. A lifting bracket is mounted on each base 2, and a fixing mechanism is mounted on the lifting bracket. A locking mechanism is mounted on the fixing mechanism, and a shielding mechanism is mounted on the lifting bracket. An angle adjustment mechanism is mounted on the shielding mechanism. The lifting mechanism includes two uprights 3, each mounted on one of the two bases 2. A transverse adjusting rod 31 is slidably mounted on each upright 3. A threaded hole 311 is provided on the transverse adjusting rod 31, and a bolt 312 is threaded onto each upright 3. One end of the bolt 312 is threaded onto the transverse adjusting rod 31, and a fixing plate 35 is mounted on one end of the transverse adjusting rod 31. Multiple fixing devices are mounted on the fixing plate 35. Block 36, multiple fixed blocks 36 are equipped with partitions 37, multiple plug-in rods 38 are installed on partitions 37, multiple counterweights 39 are movably installed on multiple plug-in rods 38 respectively, a transition buckle 32 is installed on the other end of the horizontal adjustment rod 31, a safety cable 33 is installed on the transition buckle 32, a basket 34 is installed on the other end of the two safety cables 33, a U-shaped block 310 is installed on the top of the storage tank body 1, the horizontal adjustment rod 31 is movably installed on the U-shaped block 310, the horizontal adjustment rod 31 moves on the upright 3, the length of the two ends of the horizontal adjustment rod 31 can be adjusted according to the actual use environment, the setting of plug-in rods 38 facilitates the placement of counterweights 39 and prevents counterweights 39 from falling during use.

[0037] Example 2: Based on Example 1, in order to further increase the stability of the counterweight 39 on the partition 37, a fixing mechanism is arranged on the partition 37, specifically including two movable rods 4, both of which are slidably mounted on the partition 37. Each of the two movable rods 4 has a sliding rod 41 slidably mounted on it. A connecting plate 42 is mounted on the top of each of the two sliding rods 41. One connecting plate 42 has two pressing plates 43 mounted on it, and the other connecting plate 42 has a positioning plate 44 mounted on it. The two pressing plates 43 and the positioning plate 44 are in contact with the upper surface of the counterweight 39. A forward and reverse servo motor 45 is mounted on the fixing plate 35, and a drive shaft 46 is mounted on the forward and reverse servo motor 45. The drive shaft 46 is rotatably mounted on the partition 37. A gear 47 is sleeved on the drive shaft 46, and toothed plates 48 mesh on both sides of the gear 47. Each of the two fixed blocks 49 is slidably mounted on a fixed plate 35. A transmission plate 410 is mounted on each of the two toothed plates 48, and a cross slider 411 is mounted on each of the two transmission plates 410. The two cross sliders 411 are respectively mounted on two movable rods 4. A forward / reverse servo motor 45 drives a gear 47 to rotate. The gear 47 moves the toothed plates 48 on the fixed blocks 49, which in turn moves the transmission plates 410. The transmission plates 410 then move the cross sliders 411, which in turn move the movable rods 4. The movable rods 4 then move the sliding rods 41, which in turn move the connecting plate 42. The connecting plate 42 moves the lower pressure plate 43 and the positioning plate 44 towards the center, thus conveniently fixing the position of the counterweight 39 and preventing it from scattering during use. The remaining features are the same as in Embodiment 1.

[0038] Example 3: Based on Example 2, in order to ensure that the lower pressure plate 43 and the positioning plate 44 can fit against the upper surface of the counterweight 39, a locking mechanism is arranged on the movable rod 4. Specifically, it includes two limiting rods 5, both of which are slidably mounted on the movable rod 4. The sliding rod 41 has two sets of insertion slots 51, and the two limiting rods 5 are respectively movably mounted on the inner walls of the two sets of insertion slots 51. Locking springs 52 are installed on both sides of the limiting rods 5, and the other ends of the two locking springs 52 are mounted on the movable rod 4. First, the limiting rods 5 are manually pulled out, which causes the locking springs 52 to stretch. The sliding rod 41 is moved upward according to the height of the counterweight 39. After the sliding rod 41 moves to a suitable height, the limiting rod 5 is released. The elastic restoring force of the locking spring 52 drives the limiting rod 5 to be inserted into the insertion slot 51 on the sliding rod 41, which can conveniently fix the height of the sliding rod 41. When the pressure plate 43 and the positioning plate 44 are used, they are only used when the counterweight 39 reaches a certain height. When the counterweight 39 is placed too low, the height of the insertion rod 38 can conveniently limit the counterweight 39 so that it cannot slide off the insertion rod 38 and fall. The other features are the same as in embodiment 2.

[0039] Example 4: Based on Example 1, to enhance the safety of workers during construction, a shielding mechanism is installed on the suspended platform 34, including two upright plates 6. Both upright plates 6 are mounted on the suspended platform 34, and each upright plate 6 has a rotating shaft 613 rotatably mounted on it. A protective frame 61 is mounted on each of the two rotating shafts 613. A rotating shaft 62 is rotatably mounted on one end of each protective frame 61. A shielding curtain 63 is sleeved on the rotating shaft 62, and a movable shaft 64 is mounted on the shielding curtain 63. A connecting plate 65 is mounted on the movable shaft 64. A movable handle 66 is installed on the connecting plate 65. Two locking blocks 67 are installed on the bottom side of the protective frame 61. The movable handle 66 is movably mounted on the two locking blocks 67. Positioning blocks 68 are installed on both sides of the protective frame 61. A return spring 69 is installed on each of the two positioning blocks 68. An adapter block 610 is installed on the other end of each of the two return springs 69. A connecting rope 611 is installed on each of the two adapter blocks 610. A spool 612 is sleeved on both ends of the rotating shaft 62. The two connecting ropes 611 are wound around the two spools 61 respectively. 2. The curtain 63 is unfolded by the moving shaft 64. The curtain 63 rotates on the rotating shaft 62, which drives the spool 612 to rotate. The spool 612 drives the connecting rope 611 to wind around. The connecting rope 611 drives the adapter block 610 to move. The adapter block 610 drives the return spring 69 to stretch. At the same time, when the moving shaft 64 moves to the leftmost position, the moving handle 66 on the moving shaft 64 is just engaged with the locking block 67, so that the curtain 63 can be easily fixed. During the use of the curtain 63... It can provide good protection and sunshade. After the curtain 63 is used, simply remove the moving handle 66 from the locking block 67. At this time, the elastic restoring force of the return spring 69 drives the adapter block 610 to move to the left. The adapter block 610 drives the connecting rope 611 to stretch. The connecting rope 611 drives the spool 612 to rotate in the opposite direction. The spool 612 drives the rotating shaft 62 to rotate in the opposite direction. The rotating shaft 62 drives the curtain 63 to rotate in the opposite direction, thereby automatically rolling up the curtain 63. The remaining features are the same as in Embodiment 1.

[0040] Example 5: Based on Example 4, in order to increase the shading range of the curtain 63, an angle adjustment mechanism is arranged on the protective frame 61. Specifically, it includes two drive handles 7, both of which are installed on the protective frame 61. A pin 71 is slidably installed on the drive handle 7. The protective frame 61 has multiple deflection grooves 72. The pin 71 is movably installed on the inner wall of the deflection grooves 72. During use, when the sun moves, it is only necessary to manually rotate the drive handle 7. The drive handle 7 drives the rotating shaft 613 on the protective frame 61 to rotate on the upright plate 6, which can conveniently deflect the curtain 63 on the protective frame 61, thereby achieving the shading effect at different angles. The other features are the same as in Example 4.

[0041] The working principle of this utility model is as follows: When constructing the storage tank, first install the upright 3 on the base 2, then insert the horizontal adjusting rod 31 onto the upright 3. After adjusting the position of the horizontal adjusting rod 31 to a suitable position, use bolts 312 to fix the horizontal adjusting rod 31 onto the upright 3. Then, fix the other end of the horizontal adjusting rod 31 onto the U-shaped block 310. Next, connect the safety cable 33 to the horizontal adjusting rod 31, and connect the basket 34 to the safety cable 33. At the same time, place the counterweight 39 on the plug-in rod 38. After placing the counterweight 39 in an appropriate number, start the forward and reverse servo. The switch on the servo motor 45 uses the forward and reverse servo motor 45 to drive the drive shaft 46 to rotate, the drive shaft 46 drives the gear 47 to rotate, the gear 47 drives the toothed plate 48 on the fixed block 49 to move, the toothed plate 48 drives the transmission plate 410 to move, the transmission plate 410 drives the cross slider 411 to move, the cross slider 411 drives the movable rod 4 to move, the movable rod 4 drives the sliding rod 41 to move, the sliding rod 41 drives the connecting plate 42 to move, and the connecting plate 42 drives the lower pressure plate 43 and the positioning plate 44 to move towards the center, so as to conveniently fix the position of the counterweight 39 and prevent the counterweight 39 from falling off during use;

[0042] Meanwhile, during the placement of the counterweight 39, first manually pull out the limiting rod 5. The limiting rod 5 drives the locking spring 52 to stretch. Then, according to the height of the counterweight 39, move the sliding rod 41 upward. After the sliding rod 41 moves to the appropriate height, simply release the limiting rod 5. Use the elastic restoring force of the locking spring 52 to drive the limiting rod 5 to be inserted into the insertion slot 51 on the sliding rod 41, so that the height of the sliding rod 41 can be easily fixed.

[0043] During the use of the suspended platform 34, simply pull the moving shaft 64 manually. The moving shaft 64 then unfolds the sunshade curtain 63. The sunshade curtain 63 rotates on the rotating shaft 62, which in turn rotates the reel 612. The reel 612 winds the connecting rope 611, which in turn moves the adapter block 610. The adapter block 610 then stretches the return spring 69. Simultaneously, when the moving shaft 64 reaches its leftmost position, the moving handle 66 on the moving shaft 64 engages with the locking block 67, thus easily securing the sunshade curtain 63. During use, the sunshade curtain 63 provides excellent protection and sun shading. When the sun moves... Simply turn the drive handle 7 manually, and the drive handle 7 will drive the rotating shaft 613 on the protective frame 61 to rotate on the upright plate 6, so that the sunshade curtain 63 on the protective frame 61 can be easily deflected, thereby achieving the sunshade effect at different angles. After the sunshade curtain 63 is used, simply remove the moving handle 66 from the locking block 67. At this time, the elastic restoring force of the return spring 69 will drive the adapter block 610 to move to the left. The adapter block 610 will drive the connecting rope 611 to stretch. The connecting rope 611 will drive the spool 612 to rotate in the opposite direction. The spool 612 will drive the rotating shaft 62 to rotate in the opposite direction. The rotating shaft 62 will drive the sunshade curtain 63 to rotate in the opposite direction, thereby automatically rolling up the sunshade curtain 63.

[0044] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0045] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0046] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A counterweight device and platform for the construction of a storage tank, comprising a storage tank body (1), characterized in that: The storage tank body (1) is equipped with two bases (2), a lifting bracket is installed on the base (2), a fixing mechanism is installed on the lifting bracket, a locking mechanism is installed on the fixing mechanism, a shielding mechanism is installed on the lifting bracket, an angle adjustment mechanism is installed on the shielding mechanism, the lifting bracket includes two uprights (3), the two uprights (3) are respectively installed on the two bases (2), a transverse adjustment rod (31) is slidably installed on the uprights (3), a threaded hole (311) is opened on the transverse adjustment rod (31), a bolt (312) is threaded on the uprights (3), and one end of the bolt (312) is threaded on the transverse adjustment rod (31); A fixing plate (35) is installed on one end of the horizontal adjusting rod (31), a plurality of fixing blocks (36) are installed on the fixing plate (35), a partition plate (37) is installed on the plurality of fixing blocks (36), a plurality of plug rods (38) are installed on the partition plate (37), a plurality of counterweights (39) are movably installed on the plurality of plug rods (38), a transition buckle (32) is installed on the other end of the horizontal adjusting rod (31), a safety cable (33) is installed on the transition buckle (32), and a basket (34) is installed on the other end of the two safety cables (33). The fixing mechanism includes two movable rods (4), both of which are slidably mounted on the partition plate (37). Each of the two movable rods (4) is slidably mounted with a sliding rod (41). Each of the two sliding rods (41) has a connecting plate (42) mounted on its top end. One of the connecting plates (42) has two lower pressure plates (43), and the other connecting plate (42) has a positioning plate (44). The two lower pressure plates (43) and the positioning plate (44) are in contact with the upper surface of the counterweight (39).

2. The counterweight device and platform for construction of a storage tank according to claim 1, characterized in that: The shielding mechanism includes two upright plates (6), both of which are mounted on the suspended basket (34). A rotating shaft (613) is rotatably mounted on each of the two upright plates (6). A protective frame (61) is mounted on each of the two rotating shafts (613). A rotating shaft (62) is rotatably mounted on one end of the protective frame (61). A shielding curtain (63) is sleeved on the rotating shaft (62). A moving shaft (64) is mounted on the shielding curtain (63). A connecting plate (65) is mounted on the moving shaft (64). A moving handle (66) is mounted on the connecting plate (65). Two locking blocks (67) are mounted on the bottom side of the protective frame (61). The moving handle (66) is movably mounted on the two locking blocks (67).

3. The counterweight device and platform for construction of a storage tank according to claim 1, characterized in that: A U-shaped block (310) is installed on the top of the storage tank body (1), and a horizontal adjustment rod (31) is movably installed on the U-shaped block (310).

4. The counterweight device and platform for construction of a storage tank according to claim 1, characterized in that: A forward and reverse servo motor (45) is installed on the fixed plate (35), and a drive shaft (46) is installed on the forward and reverse servo motor (45). The drive shaft (46) is rotatably mounted on the partition plate (37).

5. The counterweight device and platform for construction of a storage tank according to claim 4, characterized in that: A gear (47) is sleeved on the drive shaft (46), and toothed plates (48) mesh on both sides of the gear (47). A retaining block (49) is slidably installed on both toothed plates (48), and both retaining blocks (49) are installed on the fixed plate (35).

6. The counterweight device and platform for construction of a storage tank according to claim 5, characterized in that: A transmission plate (410) is installed on each of the two toothed plates (48), and a cross slider (411) is installed on each of the two transmission plates (410). The two cross sliders (411) are respectively installed on the two movable rods (4).

7. The counterweight device and platform for construction of a storage tank according to claim 1, characterized in that: The locking mechanism includes two limiting rods (5), both of which are slidably mounted on the movable rod (4). The sliding rod (41) has two sets of insertion slots (51), and the two limiting rods (5) are respectively slidably mounted on the inner walls of the two sets of insertion slots (51).

8. A counterweight device and platform for construction of a storage tank according to claim 7, characterized in that: Locking springs (52) are installed on both sides of the limiting rod (5), and the other ends of the two locking springs (52) are installed on the movable rod (4).

9. A counterweight device and platform for construction of a storage tank according to claim 2, characterized in that: Positioning blocks (68) are installed on both sides of the protective frame (61). A return spring (69) is installed on each of the two positioning blocks (68). A transition block (610) is installed on the other end of each of the two return springs (69). A connecting rope (611) is installed on each of the two transition blocks (610). A spool (612) is sleeved on both ends of the rotating shaft (62). The two connecting ropes (611) are wound around the two spools (612) respectively.

10. A counterweight device and platform for construction of a storage tank according to claim 2, characterized in that: The angle adjustment mechanism includes two drive handles (7), both of which are mounted on the protective frame (61). A pin (71) is slidably mounted on the drive handle (7). The protective frame (61) has multiple deflection slots (72), and the pin (71) is movably mounted on the inner wall of the deflection slot (72).

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