Storage tank spiral staircase

Abstract

The utility model discloses a spiral ladder for a storage tank, comprising a storage tank and a central column, wherein the central column is located at one side of the storage tank, a plurality of pedals are evenly distributed in a spiral shape on the outside of the central column, a plurality of connecting plates are connected between the central column and the storage tank, a first connecting sleeve is fixedly connected to the side end of the pedal, the first connecting sleeve is connected to the second connecting sleeve by a first screw, the first connecting sleeve and the second connecting sleeve are sleeved on the outside of the central column, the first connecting sleeve and the second connecting sleeve are both fixedly connected to plug posts, slots are provided on the outside of the central column at positions corresponding to the plug posts, and guardrails are detachably installed on the top ends of the plurality of pedals, which facilitates the disassembly and replacement of the pedals, saves time and effort, and improves the efficiency of replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank spiral stairs, and more specifically, to a storage tank spiral stairs. Background Art

[0002] Usually, large storage tanks and other chemical equipment in the chemical industry require ladders during installation, commissioning, and operation, and spiral ladders are usually installed on the storage tanks.

[0003] After searching, the utility model patent with Chinese application number CN202320162968.9 discloses a spiral ladder for a storage tank, including a central column vertically fixed on one side of the storage tank and a plurality of pedals spirally arranged around the central column. The pedals are all detachable grid-type pedals and are all horizontally welded to the central column. A plurality of intermediate beams are detachably horizontally connected between the central column and the tank body at intervals along the height direction of the tank body, and the intermediate beams are all located on the center line connecting the central column and the storage tank.

[0004] The pedals are all fixedly connected to the center column. When a single pedal is damaged and needs to be replaced, the pedal is usually cut off with a cutting gun. During the cutting, the center column will be cut, which will cause damage to the center column. After cutting, the cutting position needs to be polished, and then the pedal is welded to the center column. The replacement process is time-consuming and labor-intensive, and it is not convenient to quickly disassemble and replace a single pedal. In addition, a mounting seat is installed at the bottom end of the center column, and the mounting seat is fixed to the ground by expansion bolts. The expansion bolts are exposed to the outside and are easily corroded and damaged over a long period of time. The stability of the fixing to the center column is poor, which reduces the practicality of its use. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the utility model provides a tank spiral staircase to solve the technical problem mentioned in the background art that it is inconvenient to disassemble, assemble and replace a single pedal.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spiral ladder for a storage tank, comprising a storage tank and a central column, wherein the central column is located on one side of the storage tank, and a plurality of pedals are evenly distributed in a spiral shape on the outside of the central column, and a plurality of connecting plates are connected between the central column and the storage tank, and a first connecting sleeve is fixedly connected to the side end of the pedal, and the first connecting sleeve is connected to the second connecting sleeve by a first screw, and the first connecting sleeve and the second connecting sleeve are sleeved on the outside of the central column, and the first connecting sleeve and the second connecting sleeve are both fixedly connected to plug posts, and slots are provided on the outside of the central column at positions corresponding to the plug posts, and guardrails are detachably installed on the top ends of the plurality of pedals, which facilitates the disassembly and replacement of the pedals, saves time and effort, and improves the replacement efficiency.

[0009] The utility model is further configured to include a fixing seat, the bottom end of which is fixedly connected to an embedded seat, the bottom end of which is fixedly connected to an embedded column, and the fixing seat is connected to the central column through a connecting mechanism to ensure the stability of the fixing of the central column.

[0010] The utility model is further configured as follows: the connecting mechanism includes four sockets, a square groove is provided on the top of the fixed seat, the bottom end of the central column is fixedly connected to the square seat, the square seat is inserted into the interior of the square groove, each side end of the square column is provided with a socket, each side end of the square groove is provided with a slide groove, the four sockets are slidably matched with four slide grooves respectively, each of the sockets is provided with a threaded groove, the interior of each threaded groove is threadedly connected with a threaded column, the threaded column is rotatably connected to the fixed seat, so as to facilitate the installation and fixation of the central column.

[0011] The utility model is further configured that the side ends of the threaded columns are all provided with regular hexagonal grooves, so that people can use a hexagonal wrench to rotate the threaded column.

[0012] The utility model is further configured that a protective cover is fixedly connected to the central column, and the protective cover is sleeved on the outer upper side of the fixing seat, so that rainwater is prevented from entering the interior of the connecting mechanism through the protective cover.

[0013] The utility model is further configured that a through groove is provided on the protective cover at a position corresponding to the threaded column, so as to facilitate the rotation of the threaded column.

[0014] The utility model is further configured such that the bottom end of the guardrail and the positions corresponding to the plurality of pedals are fixedly connected with connecting seats, and the connecting seats are fixedly connected to the pedals by second screws, so as to facilitate the removal of the pedals from the guardrail.

[0015] The utility model is further configured such that a connecting platform is connected between the top end of the central column and the storage tank, and a protective plate is fixedly connected to the outer side of the top end of the connecting platform to facilitate people to walk from the spiral staircase to the storage tank.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a tank spiral staircase, which has the following beneficial effects:

[0018] 1. When the pedal needs to be replaced, unscrew the first screw, then disassemble the structure connecting the pedal and the guardrail, thereby removing the pedal from the center column, then put the first connecting sleeve and the second connecting sleeve on the outside of the center column, and insert the plug column into the corresponding slot, and then tighten the first screw to make the first connecting sleeve and the second connecting sleeve tightly on the outside of the center column, so as to facilitate the disassembly and replacement of the pedal, save time and effort, and improve the efficiency of replacement.

[0019] 2. The embedded seat and multiple embedded columns are embedded in the ground, and then the square seat is inserted into the upper groove of the fixed seat. Then the threaded column is rotated clockwise. The threaded column rotates to move the seat to the side close to the square seat, and the square seat is inserted into the slot, so that the square seat and the center column are installed on the fixed seat, which improves the stability of the center column fixed on the ground and facilitates the disassembly of the center column.

[0020] 3. A protective cover is arranged on the outside of the central column, and the protective cover covers the outside of the fixing seat. The protective cover prevents rainwater from entering the inside of the square groove, prevents rainwater from contacting the connecting mechanism, prevents the connecting mechanism from being corroded and damaged, ensures its service life, ensures the stability of the fixing of the central column, and improves its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of a spiral staircase for a storage tank in the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the central column, multiple pedals, guardrails and other structures connected in the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the pedal, the first connecting sleeve, the second connecting sleeve and the central column in the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the connection between the central column and the square seat in the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the pedal, the first connecting sleeve, the second connecting sleeve, the plug post and the first screw connection in the utility model;

[0026] Figure 6 It is a partial cross-sectional structural diagram of the connection between the central column, the connecting mechanism, the fixing seat, the embedded seat and a plurality of embedded columns of the utility model.

[0027] In the figure: 1. storage tank; 2. center column; 3. pedal; 4. connecting plate; 5. first connecting sleeve; 6. first screw; 7. second connecting sleeve; 8. plug-in column; 9. slot; 10. guardrail; 11. fixing seat; 12. embedded seat; 13. embedded column; 14. clamping seat; 15. square groove; 16. square seat; 17. clamping slot; 18. slide groove; 19. threaded groove; 20. threaded column; 21. regular hexagonal groove; 22. protective cover; 23. through groove; 24. connecting seat; 25. second screw; 26. connecting platform; 27. protective plate. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] See also Figure 1-5A storage tank spiral ladder comprises a storage tank 1 and a central column 2, wherein the central column 2 is located at one side of the storage tank 1, a connecting platform 26 is connected between the top of the central column 2 and the storage tank 1, the connecting platform 26 is connected to the storage tank 1 and the central column 2 through a detachable structure (such as bolts), a protective plate 27 is fixedly connected to the outer side of the top of the connecting platform 26, so that people can walk from the spiral ladder to the storage tank 1, a plurality of pedals 3 are evenly distributed on the outside of the central column 2 in a spiral shape, a plurality of connecting plates 4 are connected between the central column 2 and the storage tank 1, the connecting plates 4 are connected to the storage tank 1 and the central column 2 through a detachable structure (such as bolts), and the side ends of the pedals 3 are fixedly connected A first connecting sleeve 5 is connected, and the first connecting sleeve 5 is connected to the second connecting sleeve 7 through a first screw 6. The first connecting sleeve 5 and the second connecting sleeve 7 are sleeved on the outside of the central column 2. The first connecting sleeve 5 and the second connecting sleeve 7 are both fixedly connected to the plug column 8. A slot 9 is provided on the outer side of the central column 2 at a position corresponding to the plug column 8. A guardrail 10 is detachably installed on the top of the multiple pedals 3. A connecting seat 24 is fixedly connected to the bottom end of the guardrail 10 at a position corresponding to the multiple pedals 3. The connecting seat 24 is fixedly connected to the pedal 3 through a second screw 25, which is convenient for removing the pedal 3 from the guardrail 10. The first screw 6 and the second screw 25 are both made of stainless steel screws.

[0032] In this embodiment, when the pedal 3 needs to be replaced, unscrew the first screw 6, then remove the second screw 25 connecting the pedal 3 to the guardrail 10, thereby removing the pedal 3 from the center column 2, then put the first connecting sleeve 5 and the second connecting sleeve 7 on the outside of the center column 2, and insert the plug 8 into the corresponding slot 9, then tighten the first screw 6 to make the first connecting sleeve 5 and the second connecting sleeve 7 tightly fit on the outside of the center column 2, and then fix the pedal 3 to the connecting seat 24 through the second bolt, so that the pedal 3 is installed on the center column 2, so as to facilitate the disassembly and replacement of the pedal 3, save time and effort, and improve the efficiency of replacement.

[0033] See also Figure 1 , Figure 4 and Figure 6, also includes a fixed seat 11, the bottom end of the fixed seat 11 is fixedly connected to the embedded seat 12, the bottom end of the embedded seat 12 is fixedly connected to the embedded column 13, the fixed seat 11 is connected to the central column 2 through a connecting mechanism, the connecting mechanism includes four clamping seats 14, the top of the fixed seat 11 is provided with a square groove 15, the bottom end of the central column 2 is fixedly connected to a square seat 16, the square seat 16 is inserted into the inside of the square groove 15, each side end of the square column is provided with a clamping slot 17, each side end of the square groove 15 is provided with a slide groove 18, the four clamping seats 14 are slidably matched with the four slide grooves 18, each clamping seat 14 is provided with a thread groove 19, the interior of each thread groove 19 is threadedly connected with a thread column 20, the thread column 20 is rotatably connected to the fixing seat 11, and the side end of each thread column 20 is provided with a regular hexagonal groove 21, which is convenient for people to rotate the thread column 20 with a hexagonal wrench. A protective cover 22 is fixedly connected to the central column 2, and the protective cover 22 is sleeved on the outer upper side of the fixing seat 11. The protective cover 22 prevents rainwater from entering the interior of the connecting mechanism, and a through groove 23 is provided on the protective cover 22 at a position corresponding to the thread column 20, which is convenient for rotating the thread column 20.

[0034] In this embodiment, the embedded seat 12 and multiple embedded columns 13 are embedded in the ground, and then the square seat 16 is inserted into the groove 15 on the fixed seat 11. Then, the threaded column 20 is rotated clockwise. The threaded column 20 rotates to move the clamping seat 14 to the side close to the square seat 16, and the square seat 16 is inserted into the inside of the clamping groove 17, so that the square seat 16 and the center column 2 are installed on the fixed seat 11, which improves the stability of the center column 2 fixed on the ground and facilitates the disassembly of the center column 2. A protective cover 22 is provided on the outside of the center column 2, and the protective cover 22 covers the outside of the fixed seat 11. The protective cover 22 prevents rainwater from entering the inside of the square groove 15, prevents rainwater from contacting the connecting mechanism, and prevents the connecting mechanism from being corroded and damaged, thereby ensuring its service life, ensuring the stability of the fixing of the center column 2, and improving its practicality.

[0035] In summary, when the overall equipment is in use:

[0036] When the pedal 3 needs to be replaced, unscrew the first screw 6, then remove the second screw 25 connecting the pedal 3 to the guardrail 10, thereby removing the pedal 3 from the center column 2, then put the first connecting sleeve 5 and the second connecting sleeve 7 on the outside of the center column 2, and insert the plug 8 into the corresponding slot 9, then tighten the first screw 6 to make the first connecting sleeve 5 and the second connecting sleeve 7 tightly fit on the outside of the center column 2, and then fix the pedal 3 to the connecting seat 24 through the second bolt, so that the pedal 3 is installed on the center column 2, thereby completing the replacement of the pedal 3.

[0037] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A storage tank spiral staircase, comprising a storage tank (1) and a central column (2), wherein the central column (2) is located on one side of the storage tank (1), and a plurality of pedals (3) are evenly distributed in a spiral shape on the outside of the central column (2), wherein: A plurality of connecting plates (4) are connected between the central column (2) and the storage tank (1); a first connecting sleeve (5) is fixedly connected to the side end of the pedal (3); the first connecting sleeve (5) is connected to the second connecting sleeve (7) via a first screw (6); the first connecting sleeve (5) and the second connecting sleeve (7) are sleeved on the outside of the central column (2); the first connecting sleeve (5) and the second connecting sleeve (7) are both fixedly connected to an insertion column (8); a slot (9) is provided on the outside of the central column (2) at a position corresponding to the insertion column (8); and a guardrail (10) is detachably installed on the top of the plurality of pedals (3).

2. A storage tank spiral staircase according to claim 1, characterized in that: It also comprises a fixed seat (11), the bottom end of the fixed seat (11) is fixedly connected to an embedded seat (12), the bottom end of the embedded seat (12) is fixedly connected to an embedded column (13), and the fixed seat (11) is connected to the central column (2) via a connecting mechanism.

3. The spiral staircase for a storage tank according to claim 2, characterized in that: The connection mechanism comprises four clamping seats (14), the top end of the fixed seat (11) is provided with a square groove (15), the bottom end of the central column (2) is fixedly connected with a square seat (16), the square seat (16) is inserted into the inside of the square groove (15), each side end of the square column is provided with a clamping groove (17), each side end of the square groove (15) is provided with a slide groove (18), the four clamping seats (14) are slidably matched with the four slide grooves (18), each clamping seat (14) is provided with a threaded groove (19), the inside of each threaded groove (19) is threadedly connected with a threaded column (20), and the threaded column (20) is rotatably connected to the fixed seat (11).

4. The spiral staircase for a storage tank according to claim 3 is characterized in that: The side end of each threaded column (20) is provided with a regular hexagonal groove (21).

5. The spiral staircase for a storage tank according to claim 3 is characterized in that: A protective cover (22) is fixedly connected to the central column (2), and the protective cover (22) is sleeved on the outer upper side of the fixing seat (11).

6. The spiral staircase for a storage tank according to claim 5, characterized in that: A through groove (23) is provided on the protective cover (22) at a position corresponding to the threaded column (20).

7. The storage tank spiral staircase according to claim 1, characterized in that: The bottom end of the guardrail (10) and the positions corresponding to the plurality of pedals (3) are fixedly connected with a connecting seat (24), and the connecting seat (24) is fixedly connected to the pedal (3) via a second screw (25).

8. The storage tank spiral staircase according to claim 1, characterized in that: A connecting platform (26) is connected between the top end of the central column (2) and the storage tank (1), and a protective plate (27) is fixedly connected to the outer side of the top end of the connecting platform (26).

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