Vertical container blind plate lifting device

Abstract

The invention discloses a vertical container blind plate lifting device, and relates to the technical field of blind plate lifting and dismounting, the vertical container blind plate lifting device comprises a blind plate assembly, a preassembling assembly is arranged outside the blind plate assembly, a lifting assembly is arranged at the top of the blind plate assembly, and a shell assembly is arranged outside the lifting assembly; a lifting and pressing assembly is arranged outside the shell assembly, and a connecting assembly is arranged between the preassembling assembly and the shell assembly. The device is easy to operate and convenient to disassemble and assemble, when the blind plate body needs to be replaced, the blind plate body can fall off from the lower portion of the lifting device only by rotating the blind plate body, the blind plate which is seriously corroded can be conveniently and independently disassembled and replaced, the blind plate body can be accurately installed in an installation groove of a container opening, collision and scraping between the blind plate body and the inner wall of the container opening are avoided, and the service life of the blind plate body is prolonged. The installation effect is good, meanwhile, the independent lifting device can lift blind plates of different vertical containers, and practicability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of blind plate lifting and disassembly, in particular to a vertical container blind plate lifting device. Background Art

[0002] In the field of industrial production, especially in the chemical, petroleum, pharmaceutical and other industries, vertical containers are widely used in material storage, reaction processes and other links. After running for a period of time, these vertical containers often need to be inspected, maintained or internally cleaned. At this time, the removal and installation of the maintenance port blind plate becomes an indispensable operating step.

[0003] In the prior art, such as Chinese patent publication number CN114772518A, a vertical blind plate rotating lifting and lowering mechanism is disclosed, which includes a supporting column assembly, a rotating arm assembly and a lifting assembly. The supporting column assembly is used to be fixed on the blind plate seat. The first end of the rotating arm assembly is rotatably connected to the supporting column assembly, and the rotating shaft of the rotating arm assembly is parallel to the axis of the blind plate cover. The lifting assembly is installed at the second end of the rotating arm assembly, and the lifting assembly includes a hydraulic cylinder. The axis of the piston rod of the hydraulic cylinder is parallel to the axis of the blind plate cover, and the piston rod is used to connect with the blind plate cover to lift and lower the blind plate cover. Compared with the prior art, this invention can make the lifting and lowering of the blind plate cover more convenient and eliminate the safety hazards caused by the self-rotation of the rotating arm assembly.

[0004] Although the above patent can make the lifting and lowering of the blind plate cover more convenient and eliminate the safety hazards caused by the self-rotation of the rotating arm assembly, the existing lifting device mainly adopts the method of fixing itself on the inspection port of the vertical container, and the blind plate is connected to the lifting device to form a whole. In actual use, it is found that the side of the blind plate facing the inside of the vertical container such as the reactor is susceptible to corrosion, which will directly lead to a decrease in the sealing performance of the vertical container. Although the integrated design of the blind plate, the inspection port and the lifting device facilitates the opening and closing of the blind plate, it is difficult to remove the blind plate alone, and the replacement is difficult.

[0005] Therefore, a vertical container blind plate lifting device is proposed to solve the problems raised in the above background technology. Summary of the invention

[0006] The object of the present invention is to provide a vertical container blind plate lifting device to solve the problems raised by the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vertical container blind plate lifting device, comprising a blind plate assembly, a pre-installed assembly is arranged outside the blind plate assembly, a lifting assembly is arranged on the top of the blind plate assembly, a shell assembly is arranged outside the lifting assembly, a lifting and pressing assembly is arranged outside the shell assembly, a connecting assembly is arranged between the pre-installed assembly and the shell assembly, the blind plate assembly comprises a container mouth, a blind plate body is installed between the inner surface walls of the container mouth near the top, a circular seat is welded on the top of the blind plate body, and the pre-installed assembly comprises four arc shaped seat, the shell component includes a circular shell, the outer surface of the circular shell is provided with a mechanism groove near the front side, the lifting component includes a screw rod, the outer surface of the screw rod is threadedly connected with a threaded sleeve, the outer surface of the threaded sleeve is equidistantly provided with recesses, the connecting component includes a sliding ring, the lifting and pressing component includes a rotating shaft and a mounting frame, the rotating shaft is rotatably connected between the inner top and inner bottom of the mechanism groove, the outer surface of the rotating shaft is rotatably connected with a swing block, the rear end of the swing block is provided with a contact head, the contact head is in contact with the inner surface wall of the recess, and the front end of the swing block is provided with a Y-shaped fork head.

[0008] Preferably, the mounting bracket is fixedly connected to a position on the outer surface of the circular shell below the mechanism groove, a second connecting column is fixedly connected to the top of the mounting bracket near the front side, a first connecting column is fixedly connected to the bottom of the forked head near the front side, a tension spring is connected between the outer surfaces of the first connecting column and the second connecting column, the bottom of the mounting bracket near the two rear corners are fixedly connected with sockets, a pin is provided between the inner surface walls of the forked head, and the bottom end of the pin is inserted into one of the sockets.

[0009] Preferably, three fan-shaped blocks are fixedly connected to the bottom end of the screw rod, the interior of the circular seat is arranged as a cavity and three interconnected fan-shaped grooves are opened on the top of the circular seat, three partitions are equidistantly fixedly connected between the inner bottom and the inner top of the circular seat, the partitions and the fan-shaped grooves are staggered, the sizes of the fan-shaped blocks and the fan-shaped grooves match, and the fan-shaped blocks and partitions cooperate with each other.

[0010] Preferably, the four arc seats are equidistantly fixed and welded on the outer surface of the container mouth, an insertion groove is opened inside the arc seat, the insertion groove is composed of a circular groove and a rectangular groove, and a ball head column extending upward is slidably connected inside the insertion groove.

[0011] Preferably, ratchet grooves are provided on the tops of two of the arc-shaped seats, and a circular ring is fixedly connected to the outer surface of the ball head column near the middle position, and a first spring is sleeved on the outer surfaces of the two ball head columns below the circular ring, and a ratchet block is fixedly connected to the bottom end of the first spring, and the outer surface of the ball head column slides through the outer surface of the ratchet block, and the bottom of the ratchet block is unidirectionally meshed with the ratchet groove.

[0012] Preferably, the inner wall of the circular shell is fixedly connected to limit rings near the middle and bottom, the outer surface of the circular shell is rotatably connected to a clamping ring near the top through a bearing, the clamping ring has an I-shaped cross-section, and a tightening groove is provided on the outer surface of the circular shell below the clamping ring.

[0013] Preferably, the sliding ring is slidably sleeved on the inner side of the tightening groove, and the inner wall of the sliding ring is provided with a plurality of splines, and the outer surface of the splines slides in contact with the inner wall of the tightening groove, and the outer surface of the sliding ring is equidistantly rotatably connected with four inclined connecting rods, and a group of parallel rods is provided below the outer ends of the four connecting rods, and the number of parallel rods in each group is set to two, and the outer end of the connecting rod is rotatably connected to the top of the upper parallel rod, and the outer end of each group of parallel rods is rotatably connected to each ball head column, and the inner end of each group of parallel rods is rotatably connected to the outer surface of the circular shell.

[0014] Preferably, a handwheel is fixedly installed on the top of the screw rod, the bottom of the threaded sleeve is fixedly connected to a first plane bearing, the bottom of the first plane bearing is fixedly connected to a second spring, the bottom end of the second spring is fixedly connected to a second plane bearing, and the top of the threaded sleeve and the bottom of the second plane bearing respectively conflict with the outer surfaces of the opposite sides of the two limit rings.

[0015] Preferably, an arc-shaped support is fixedly connected to the outer surface of one side of the arc-shaped seat, a semicircular groove is provided on the top of the arc-shaped support, the semicircular groove cooperates with the insertion groove, and the semicircular groove cooperates with the bottom end of the ball head column.

[0016] Preferably, a rubber spring is embedded in the top of the sector block, a ball head block is fixedly connected to the top of the rubber spring, spherical grooves are symmetrically provided at the top of the circular seat on both sides of the partition, and the top of the ball head block matches the spherical grooves.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, under the action of the connecting component, the lifting device and the container mouth can be connected by holding the ball head column in the symmetrical position and rotating it counterclockwise and cooperating with the pre-installed component. When the contact head is tilted to the left, the lifting device and the blind plate body can be connected by pressing the hand wheel and rotating it counterclockwise, and the blind plate body can be lifted upward. After pulling the ratchet block upward, the ball head column can be rotated clockwise to separate the lifting device and the container mouth. The operation is simple and the disassembly and assembly are convenient. When the blind plate body needs to be replaced, it only needs to be rotated to make it fall off from the bottom of the lifting device, which is convenient for the individual removal and replacement of the blind plate that is severely corroded.

[0018] 2. In the present invention, when the blind plate body is pressed down for installation, the contact head is tilted to the right through the cooperation of the latch, the sleeve, the forked head and the swing block. At this time, under the action of the connecting assembly, the blind plate body can be accurately installed in the installation groove of the container mouth by rotating the hand wheel clockwise without colliding or scratching with the inner wall of the container mouth, and the installation effect is better.

[0019] 3. In the present invention, by designing a simple arc-shaped support and a semicircular groove, the connection and separation between the lifting device and the container mouth can be further facilitated, and the practicality is high. By designing a simple rubber spring, a ball head block and a spherical groove, the connection stability between the lifting device and the blind plate body is improved.

[0020] 4. In the present invention, the lifting device, the container mouth and the blind plate body are of detachable design, and under the action of the connecting assembly, the lifting device is suitable for blind plates of different diameters. Therefore, an independent lifting device can lift the blind plates of different vertical containers, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of a vertical container blind plate lifting device of the present invention; Figure 2 It is a cross-sectional view of a vertical container blind plate lifting device of the present invention; Figure 3 This is a connection diagram of a housing component, a lifting component and a lifting and pressing component of a vertical container blind plate lifting device of the present invention; Figure 4 It is a schematic diagram of the structure of a lifting assembly of a vertical container blind plate lifting device of the present invention; Figure 5 It is a schematic structural diagram of a housing component of a vertical container blind plate lifting device of the present invention; Figure 6 It is a schematic diagram of the connection between a circular seat and a screw rod of a vertical container blind plate lifting device of the present invention; Figure 7 It is a structural schematic diagram of a lifting and pressing assembly of a vertical container blind plate lifting device of the present invention; Figure 8It is a schematic diagram of the structure of the connection assembly part of a vertical container blind plate lifting device of the present invention; Fig. 9 This is a schematic diagram of the structure of a pre-assembled component of a vertical container blind plate lifting device of the present invention; Fig.10 This is a diagram showing the matching of a lifting and pressing assembly and a threaded sleeve of a vertical container blind plate lifting device of the present invention.

[0022] In the figure: 1. pre-assembled assembly; 101. arc seat; 102. insertion groove; 103. arc support; 104. semicircular groove; 105. ball head column; 106. circular ring; 107. ratchet groove; 108. ratchet block; 109. first spring; 2. blind plate assembly; 201. container mouth; 202. blind plate body; 203. circular seat; 204. partition; 205. fan-shaped groove; 206. spherical groove; 3. connecting assembly; 301. sliding ring; 302. spline; 303. connecting rod; 304. parallel rod; 4. shell assembly; 401. circular shell; 402. mechanism groove; 403 , limit ring; 404, tightening groove; 405, clamping ring; 5, lifting assembly; 501, hand wheel; 502, screw rod; 503, threaded sleeve; 504, notch; 505, first plane bearing; 506, second spring; 507, second plane bearing; 508, fan-shaped block; 509, rubber spring; 510, ball head block; 6, lifting and pressing assembly; 601, mounting frame; 602, sleeve; 603, rotating shaft; 604, swing block; 605, contact head; 606, fork head; 607, first connecting column; 608, tension spring; 609, latch; 610, second connecting column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-Figure 10As shown, the present invention provides a technical solution: a vertical container blind plate lifting device, comprising a blind plate component 2, a pre-installed component 1 is arranged outside the blind plate component 2, a lifting component 5 is arranged on the top of the blind plate component 2, a shell component 4 is arranged outside the lifting component 5, a lifting and pressing component 6 is arranged outside the shell component 4, a connecting component 3 is arranged between the pre-installed component 1 and the shell component 4, the blind plate component 2 comprises a container mouth 201, a blind plate body 202 is installed near the top between the inner surface walls of the container mouth 201, a circular seat 203 is welded on the top of the blind plate body 202, the pre-installed component 1 comprises four arc seats 101, and the shell component 4 comprises a circular shell 401. A mechanism groove 402 is provided on the outer surface of the circular shell 401 near the front side, the lifting component 5 includes a screw rod 502, the outer surface of the screw rod 502 is threadedly connected with a threaded sleeve 503, the outer surface of the threaded sleeve 503 is equidistantly provided with recesses 504, the connecting component 3 includes a sliding ring 301, the lifting and pressing component 6 includes a rotating shaft 603 and a mounting frame 601, the rotating shaft 603 is rotatably connected between the inner top and inner bottom of the mechanism groove 402, the outer surface of the rotating shaft 603 is rotatably connected with a swing block 604, the rear end of the swing block 604 is provided with a contact head 605, the contact head 605 is in conflict with the inner surface wall of the recess 504, and the front end of the swing block 604 is provided with a Y-shaped fork head 606.

[0025] The mounting frame 601 is fixedly connected to the outer surface of the circular shell 401 below the mechanism slot 402. The top of the mounting frame 601 is fixedly connected to the second connecting column 610 near the front side. The bottom of the forked head 606 is fixedly connected to the first connecting column 607 near the front side. A tension spring 608 is connected between the outer surfaces of the first connecting column 607 and the second connecting column 610. The bottom of the mounting frame 601 is fixedly connected to the two corners near the rear side. A latch 609 is provided between the inner surface walls of the forked head 606. The bottom end of the latch 609 is inserted into one of the sockets 60 2, the mounting frame 601 is installed on the surface of the circular shell 401, the rotating shaft 603 is used to rotate the swing block 604 to connect it to the position of the mechanism slot 402, the contact head 605 at the front end of the swing block 604 extends to the inside of the circular shell 401, and the contact head 605 can be adjusted to tilt left or right by pushing and pulling the fork head 606 left and right, the tension spring 608 installed on the surface of the first connecting column 607 and the second connecting column 610 can provide tension for the swing block 604, and the pin 609 passes through the inner side of the fork head 606 and is connected to the plug sleeve 602, which plays a role in limiting the tilt direction of the contact head 605.

[0026] The bottom end of the screw rod 502 is fixedly connected with three fan-shaped blocks 508, the interior of the circular seat 203 is arranged in a cavity, and the top of the circular seat 203 is provided with three interconnected fan-shaped grooves 205, and three partitions 204 are equidistantly fixedly connected between the inner bottom and the inner top of the circular seat 203, and the partitions 204 and the fan-shaped grooves 205 are arranged in a staggered manner, and the fan-shaped blocks 508 and the fan-shaped grooves 205 match in size, and the fan-shaped blocks 508 and the partitions 204 cooperate, and the circular seat 203 is pre-installed in advance at the top circular part of the blind plate body 202 by welding, and after the fan-shaped block 508 at the bottom of the screw rod 502 is rotated and adjusted to align with the fan-shaped groove 205 at the top of the circular seat 203, the screw rod 502 is pressed downward to make the fan-shaped block 508 enter the circular The interior of the circular seat 203 is then rotated, and the screw rod 502 is then rotated to make the fan-shaped block 508 and the fan-shaped groove 205 deviate, so that the fan-shaped block 508 cannot move directly upward and then separate from the circular seat 203. The partition 204 divides the internal space of the circular seat 203 into three equal parts, which plays a role in limiting the maximum rotation angle of the fan-shaped block 508. When installing the blind plate body 202, it should be noted that when the blind plate body 202 and the container mouth 201 are fixed with bolts, it is necessary to rotate and align the screw holes in advance when the blind plate body 202 is not tightly fitted with the installation groove. Finally, when removing the blind plate body 202, the steering restriction on the threaded sleeve 503 can be released by pulling out the pin 609, and then the screw rod 502 and the circular seat 203 can be directly separated.

[0027] Four arc seats 101 are fixedly welded at equal intervals on the outer surface of the container mouth 201. An insertion groove 102 is opened inside the arc seat 101. The insertion groove 102 is composed of a circular groove and a rectangular groove. The inside of the insertion groove 102 is slidably connected with a ball head column 105 extending upward. The arc seat 101 is pre-installed on the surface of the container mouth 201 in advance by welding. The arc seat 101 and the insertion groove 102 are both arc-shaped and are arranged concentrically with the container mouth 201. The top of the insertion groove 102 and the side facing the arc support 103 are provided with openings. After the ball head column 105 slides into the insertion groove 102 from the side, it will not be able to directly detach upward.

[0028] The tops of the two arc seats 101 are provided with ratchet grooves 107, and the outer surfaces of the ball studs 105 are fixedly connected with a circular ring 106 near the middle position. The outer surfaces of the two ball studs 105 are located below the circular ring 106 and are sleeved with a first spring 109. The bottom ends of the first springs 109 are fixedly connected with a ratchet block 108. The outer surfaces of the ball studs 105 slide through the outer surfaces of the ratchet blocks 108. The bottom of the ratchet block 108 is unidirectionally meshed with the ratchet grooves 107. When the ball studs 105 slide into the interior of the insertion groove 102 in a counterclockwise direction, the first springs 109 are engaged with the circular ring 106. 06, can provide downward pressure for the ratchet block 108. At this time, the inclined surface of the ratchet block 108 and the inclined surface of the ratchet groove 107 are in conflict. Therefore, the ratchet block 108 will move with the ball head column 105 and continuously squeeze the first spring 109 to repeatedly expand and contract. When the ball head column 105 rotates clockwise, the compressed surface of the ratchet block 108 and the ratchet groove 107 are in contact with each other, thereby preventing the ball head column 105 from rotating clockwise. After pulling the ratchet block 108 upward, the first spring 109 is squeezed to contract, and the ratchet block 108 is disengaged from the ratchet groove 107. At this time, the ball head column 105 can be rotated clockwise.

[0029] The inner wall of the circular shell 401 is fixedly connected to the limit ring 403 near the middle and the bottom. The outer surface of the circular shell 401 is rotatably connected to a clamp ring 405 near the top through a bearing. The cross-section of the clamp ring 405 is I-shaped. The outer surface of the circular shell 401 is provided with a tightening groove 404 below the clamp ring 405. The limit ring 403 is mainly used to limit the up and down sliding stroke of the threaded sleeve 503. The surface of the clamp ring 405 is concave inward, and can be clamped using a device with a clamping function, so that the device and the blind plate body 202 can be removed from the container mouth 201 as a whole. The tightening groove 404 is used to limit the maximum lifting distance of the sliding ring 301.

[0030] The sliding ring 301 is slidably sleeved on the inner side of the tightening groove 404, and the inner surface wall of the sliding ring 301 is provided with a plurality of splines 302, and the outer surface of the splines 302 is slidably fitted with the inner surface wall of the tightening groove 404, and the outer surface of the sliding ring 301 is equidistantly rotatably connected with four inclined connecting rods 303, and a group of parallel rods 304 is provided below the outer ends of the four connecting rods 303, and the number of each group of parallel rods 304 is set to two, and the outer end of the connecting rod 303 is rotatably connected to the top of the upper parallel rod 304, and the outer end of each group of parallel rods 304 is rotatably connected to each ball stud 105 respectively, and the inner end of each group of parallel rods 304 is rotatably connected to the outer surface of the circular shell 401, and the four rotation points of the parallel rods 304 form a parallelogram, and the two inner rotation points are in a vertical state, so the ball stud 105 rotatably connected to the outer end of the parallel rod 304 will always maintain a vertical state, and can also Assuming that it is in a parallel state with the surface of the circular shell 401, when holding the two symmetrical ball studs 105 for pushing and pulling, as the spacing between the ball studs 105 changes, the parallel rod 304 will rotate up and down as a whole, and at this time, the rotation point between the parallel rod 304 and the connecting rod 303 will perform a circular motion with the rotation point on the upper inner side of the parallel rod 304 as the center, under this action, the upper end of the connecting rod 303 will push and pull the sliding ring 301 to slide up and down by itself, with the help of the movement of the sliding ring 301, at this time all the connecting rods 303 and parallel rods 304 will rotate synchronously, so that when holding the two ball studs 105 and aligning them with the insertion grooves 102, the other two ball studs 105 will synchronously align with the other two insertion grooves 102, and the spacing between the ball studs 105 can be adjusted at will, so as to form a connection with the container mouth 201 of different diameters, and the circular shell 401 will be in a concentric state with the blind plate body 202.

[0031] A handwheel 501 is fixedly installed on the top of the screw rod 502, and a first plane bearing 505 is fixedly connected to the bottom of the threaded sleeve 503. A second spring 506 is fixedly connected to the bottom of the first plane bearing 505, and a second spring 507 is fixedly connected to the bottom end of the second spring 506. The top of the threaded sleeve 503 and the bottom of the second plane bearing 507 respectively conflict with the opposite side outer surfaces of the two limit rings 403. The setting of the handwheel 501 facilitates the rotation of the screw rod 502. The second spring 506 can increase the upward extrusion force for the threaded sleeve 503. The first plane bearing 505 and the second plane bearing 507 are set so that the threaded sleeve 503 will not pull the second spring 506 to be twisted and damaged during rotation.

[0032] The use steps of the present invention are as follows: when cleaning the interior of a vertical container, when the blind plate body 202 needs to be opened from the container mouth 201, the two symmetrical ball studs 105 in the device are held and slid counterclockwise into the insertion groove 102 inside the arc seat 101. During the process, the ratchet block 108 will be unidirectionally meshed with the ratchet groove 107 at the top of the arc seat 101 with the help of the first spring 109, so that the ball stud 105 cannot rotate clockwise, completing the connection and installation between the device and the container mouth 201. Then, the hand wheel 501 is pressed to drive the screw rod 502 to move downward. At this time, under the action of the thread, the threaded sleeve 503 will follow the screw rod 502 to descend and squeeze the second spring 506 to contract until the fan-shaped block 508 at the bottom end of the screw rod 502 and the blind plate body are connected. The circular seat 203 at the center of the top of 202 fits, and then the hand wheel 501 is rotated clockwise to drive the screw rod 502 to rotate. At this time, the screw rod 502 cannot continue to descend, so the threaded sleeve 503 will be driven to rotate clockwise under the action of the thread. During the process, the swing block 604, which is initially tilted to the left, has its rear end contact head 605 surface squeezed clockwise by the inner wall of the recess 504 on the surface of the threaded sleeve 503, and the swing block 604 will continue to rotate to the left as a whole and pass through the recess 504. During this process, the tension spring 608 will generate a pulling force to cause the swing block 604 to rotate, and the inner wall of the fork head 606 is squeezed by the pin 609, limiting the maximum rotation distance of the swing block 604. Through this operation, the fan-shaped block 508 can reach the fan-shaped groove 205 after rotating clockwise. The hand wheel 501 is then pressed down to allow the fan-shaped block 508 to enter the circular seat 203, and then the hand wheel 501 can be rotated counterclockwise. At this time, the fan-shaped block 508 inside the circular seat 203 will rotate with it until it conflicts with the partition 204, thereby completing the connection between the screw rod 502 and the blind plate body 202, and then continue to rotate counterclockwise. At this time, the screw rod 502 can move upward, and the contact head 605 inclined to the left can prevent the threaded sleeve 503 from rotating counterclockwise after squeezing the inner wall of the recess 504. Therefore, the screw rod 502 rotating counterclockwise and the threaded sleeve 503 that cannot rotate counterclockwise form a threaded connection. Under the action of the thread, the screw rod 502 will drive the blind plate body 202 to rotate upward and then separate from the container mouth 201, thereby lifting and opening. The blind plate body 202 has an effect, and the blind plate body 202, the container mouth 201 and the lifting device are not designed as a fixed connection. When the blind plate body 202 needs to be replaced, use the thumb and index finger to push up the two symmetrical ratchet blocks 108 to separate them from the ratchet groove 107 on the top of the arc seat 101, and use the bent mouth of the middle finger to hook the ball head column 105 and push it clockwise to make the bottom end of the ball head column 105 slide from the inside of the insertion groove 102 into the semicircular groove 104 on the top of the arc support 103. At this time, the lifting device can be separated from the container mouth 201. According to the weight of the blind plate body 202, when the blind plate body 202 is light, the blind plate body 202 and the lifting device can be removed manually at the same time. When the blind plate body 202 is heavy,Use the equipment that drives the clamping mechanism to clamp the clamping ring 405 on the surface of the circular shell 401 to remove the lifting device and the blind plate body 202, and then rotate the circular seat 203 so that the fan-shaped groove 205 and the fan-shaped block 508 are in the same position, and the blind plate body 202 will fall directly, which is convenient for the individual removal and replacement of the blind plate that is severely corroded. When the blind plate body 202 needs to be installed, the circular seat 203 on the top of the blind plate body 202 and the fan-shaped block 508 at the bottom of the screw rod 502 can be quickly connected by rotating, and then the ball head column 105 that is adjusted to the symmetrical position is pulled and placed on the arc support 103 and rotated counterclockwise to complete the preliminary assembly of the container mouth 201, the blind plate body 202 and the lifting device, and then the latch 609 is pulled out to release the swing The movable block 604 is limited, and the forked head 606 is pushed to the left to make the contact head 605 tilt to the right. Then the latch 609 passes through the inner side of the forked head 606 and connects with the left plug sleeve 602, so that the contact head 605 limits the rotation direction of the threaded sleeve 503. Finally, after the hand wheel 501 is rotated clockwise, since the threaded sleeve 503 cannot rotate clockwise at this time, the screw rod 502 rotating with the hand wheel 501 will slowly descend and install the blind plate body 202 on the container mouth 201. Due to the linkage effect of the connecting component 3, the circular shell 401 coincides with the center of the container mouth 201, so the blind plate body 202 will accurately enter the installation groove of the container mouth 201, and will not collide or scratch with the inner wall of the container mouth 201, and the installation effect is better.

[0033] Embodiment 2: Figure 1 and Fig. 9 As shown, the difference between the basis and the embodiment is that an arc-shaped support 103 is fixedly connected to the outer surface of one side of the arc-shaped seat 101, and a semicircular groove 104 is opened on the top of the arc-shaped support 103, and the semicircular groove 104 cooperates with the insertion groove 102, and the semicircular groove 104 cooperates with the bottom end of the ball head column 105. When the ball head column 105 slides out of the insertion groove 102 inside the arc-shaped seat 101, it will enter the semicircular groove 104 on the top of the arc-shaped support 103, so as to support the device. The cross-section of the semicircular groove 104 is a combination of a semicircle and a rectangle, which only limits the ball head columns 105 from approaching and moving away from each other, and does not limit the upward movement of the ball head columns 105.

[0034] According to the usage steps of the present invention, when the lifting device and the container mouth 201 are connected, the spacing of the ball head column 105 can be adjusted first, and then the ball head column 105 can be placed on the semicircular groove 104 at the top of the arc support 103, and then it can be directly pushed counterclockwise to make it enter the insertion groove 102 inside the arc seat 101 for connection. When removing, when the ball head column 105 is separated from the arc seat 101, it will enter the semicircular groove 104 at the top of the arc support 103 and will not fall directly. The design structure is simple, which further facilitates the connection and separation between the lifting device and the container mouth 201 and is highly practical.

[0035] Embodiment 3: Figure 6 As shown, the difference between the combination embodiment and the basis is that a rubber spring 509 is embedded in the top of the fan-shaped block 508, and the top of the rubber spring 509 is fixedly connected to the ball head block 510. The top of the circular seat 203 is located on both sides of the partition 204 and symmetrically provided with spherical grooves 206. The top of the ball head block 510 cooperates with the spherical groove 206. When the fan-shaped block 508 entering the circular seat 203 rotates, the arc surface of the ball head block 510 protruding from the top will be squeezed and generate downward pressure to make the ball head block 510 retract into the fan-shaped block 508. During the process, the rubber spring 509 is compressed and contracted. When the fan-shaped block 508 and the partition 204 collide, the ball head block 510 will correspond to the position of one group of spherical grooves 206. At this time, the extrusion force generated by the rebound of the rubber spring 509 will push the top of the ball head block 510 to slide into the spherical groove 206, thereby playing a positioning role.

[0036] The usage steps of the present invention are as follows: when the lifting device is connected to the blind plate body 202, as the fan-shaped block 508 passes through the fan-shaped groove 205 and rotates, the arc surface of the ball head block 510 protruding from the top of the fan-shaped block 508 will be squeezed and generate downward pressure, causing the ball head block 510 to retract into the interior of the fan-shaped block 508. When the fan-shaped block 508 and the partition 204 collide, the ball head block 510 will correspond to the position of one group of spherical grooves 206. At this time, the extrusion force generated by the rebound of the rubber spring 509 will push the top of the ball head block 510 to slide into the spherical groove 206, which plays a positioning role, improves the connection stability between the screw rod 502 and the blind plate body 202, and facilitates further operation of the blind plate body 202.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical container blind plate lifting device, comprising a blind plate assembly (2), characterized in that: The blind plate assembly (2) is provided with a pre-installed assembly (1) on the outside, the blind plate assembly (2) is provided with a lifting assembly (5) on the top, the lifting assembly (5) is provided with a shell assembly (4) on the outside, the shell assembly (4) is provided with a lifting and pressing assembly (6) on the outside, and a connecting assembly (3) is provided between the pre-installed assembly (1) and the shell assembly (4); The blind plate assembly (2) comprises a container mouth (201), a blind plate body (202) is installed between the inner surface walls of the container mouth (201) and close to the top, and a circular seat (203) is welded to the top of the blind plate body (202); The pre-assembled component (1) comprises four arc-shaped seats (101); The housing component (4) comprises a circular shell (401), and a mechanism groove (402) is provided on the outer surface of the circular shell (401) near the front side; The lifting assembly (5) comprises a screw rod (502), the outer surface of the screw rod (502) being threadedly connected to a threaded sleeve (503), and the outer surface of the threaded sleeve (503) being provided with notches (504) at equal intervals; The connection assembly (3) comprises a sliding ring (301); The lifting and pressing assembly (6) comprises a rotating shaft (603) and a mounting frame (601), wherein the rotating shaft (603) is rotatably connected between the inner top and the inner bottom of the mechanism groove (402), and the outer surface of the rotating shaft (603) is rotatably connected to a swing block (604), and a rear end of the swing block (604) is provided with a contact head (605), and the contact head (605) is in contact with the inner surface wall of the recess (504), and a Y-shaped fork head (606) is provided at the front end of the swing block (604).

2. The vertical container blind plate lifting device according to claim 1 is characterized in that: The mounting frame (601) is fixedly connected to the outer surface of the circular shell (401) below the mechanism groove (402); a second connecting column (610) is fixedly connected to the top of the mounting frame (601) near the front side; a first connecting column (607) is fixedly connected to the bottom of the forked head (606) near the front side; a tension spring (608) is connected between the outer surfaces of the first connecting column (607) and the second connecting column (610); the bottom of the mounting frame (601) near the two rear corners is fixedly connected to the plug sleeve (602); a latch (609) is provided between the inner surface walls of the forked head (606); the bottom end of the latch (609) is inserted into one of the plug sleeves (602).

3. The vertical container blind plate lifting device according to claim 1 is characterized in that: The bottom end of the screw rod (502) is fixedly connected with three fan-shaped blocks (508); the interior of the circular seat (203) is arranged in a hollow cavity and the top of the circular seat (203) is provided with three mutually connected fan-shaped grooves (205); three partitions (204) are fixedly connected at equal distances between the inner bottom and the inner top of the circular seat (203); the partitions (204) and the fan-shaped grooves (205) are arranged in a staggered manner; the fan-shaped blocks (508) and the fan-shaped grooves (205) are matched in size; and the fan-shaped blocks (508) and the partitions (204) are matched.

4. The vertical container blind plate lifting device according to claim 1 is characterized in that: The four arc-shaped seats (101) are fixedly welded at equal intervals on the outer surface of the container mouth (201); an insertion groove (102) is provided inside the arc-shaped seat (101); the insertion groove (102) is composed of a circular groove and a rectangular groove; a ball head column (105) extending upward is slidably connected inside the insertion groove (102).

5. The vertical container blind plate lifting device according to claim 4 is characterized in that: Two of the arc-shaped seats (101) are provided with ratchet grooves (107) at the top, and a circular ring (106) is fixedly connected to the outer surface of the ball head column (105) near the middle position, wherein a first spring (109) is sleeved on the outer surface of the two ball head columns (105) below the circular ring (106), and a ratchet block (108) is fixedly connected to the bottom end of the first spring (109), and the outer surface of the ball head column (105) slides through the outer surface of the ratchet block (108), and the bottom of the ratchet block (108) is unidirectionally meshed with the ratchet groove (107).

6. The vertical container blind plate lifting device according to claim 1 is characterized in that: The inner surface wall of the circular shell (401) is fixedly connected to a limit ring (403) near the middle and the bottom, and the outer surface of the circular shell (401) is rotatably connected to a clamp ring (405) near the top via a bearing. The clamp ring (405) has an I-shaped cross section, and a tightening groove (404) is provided on the outer surface of the circular shell (401) below the clamp ring (405).

7. The vertical container blind plate lifting device according to claim 1 is characterized in that: The sliding ring (301) is slidably sleeved on the inner side of the tightening groove (404); the inner surface wall of the sliding ring (301) is provided with a plurality of splines (302); the outer surface of the splines (302) and the inner surface wall of the tightening groove (404) are slidably fitted; the outer surface of the sliding ring (301) is equidistantly rotatably connected with four inclined connecting rods (303); a group of parallel rods (304) is provided below the outer ends of the four connecting rods (303); the number of each group of parallel rods (304) is set to two, and the outer ends of the connecting rods (303) are rotatably connected to the tops of the upper parallel rods (304); the outer ends of each group of parallel rods (304) are rotatably connected to each ball head column (105), respectively; and the inner ends of each group of parallel rods (304) are rotatably connected to the outer surface of the circular shell (401).

8. The vertical container blind plate lifting device according to claim 1 is characterized in that: A hand wheel (501) is fixedly mounted on the top of the screw rod (502); a first plane bearing (505) is fixedly connected to the bottom of the threaded sleeve (503); a second spring (506) is fixedly connected to the bottom of the first plane bearing (505); a second plane bearing (507) is fixedly connected to the bottom of the second spring (506); and the top of the threaded sleeve (503) and the bottom of the second plane bearing (507) are in contact with the outer surfaces of opposite sides of the two limiting rings (403), respectively.

9. The vertical container blind plate lifting device according to claim 1, characterized in that: An arc-shaped support (103) is fixedly connected to the outer surface of one side of the arc-shaped seat (101), and a semicircular groove (104) is provided on the top of the arc-shaped support (103). The semicircular groove (104) matches with the insertion groove (102), and the semicircular groove (104) matches with the bottom end of the ball head column (105).

10. The vertical container blind plate lifting device according to claim 3, characterized in that: A rubber spring (509) is embedded in the top of the sector block (508), and a ball head block (510) is fixedly connected to the top of the rubber spring (509). Spherical grooves (206) are symmetrically provided at the top of the circular seat (203) at positions on both sides of the partition (204), and the top of the ball head block (510) matches the spherical groove (206).

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