Sealing structure for storage tank and construction method thereof

Abstract

The present invention belongs to the technical field of engineering components, and in particular to a sealing structure for a storage tank and a construction method thereof. The present invention provides a sealing structure for a storage tank, comprising: a supporting keel; a plurality of shielding sheets, the edges of which are bent obliquely downward to be inserted into the upper end of the supporting keel; a plurality of connecting components, wherein the connecting components are suitable for abutting against the supporting keel and the shielding sheets; wherein, after the bottom wall of the connecting component abuts against the supporting keel, the sealing member of the connecting component continues to move downward, and the two ends of the sealing member abut against two adjacent shielding sheets respectively to form a double-layer seal; through the setting of the connecting component, not only the stability of the fixation between the adjacent shielding sheets and the supporting keel is improved, but also the airtightness is improved. The connecting member moves upward to facilitate the replacement of the sealing strip.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering components, and in particular relates to a sealing structure for a storage tank and a construction method thereof. Background Art

[0002] In petrochemical enterprises, large storage tanks are often needed to store chemical raw materials. For ease of construction, most storage tanks are open-topped, with a removable sealing cover at the top to prevent rainwater from entering the tank.

[0003] In the related art, the sealing cover is formed by splicing together several shielding pieces of the same size and supporting keels, and the shielding pieces are fixed to the supporting keels through connecting strips. In order to improve the sealing between the shielding pieces and the supporting keels, a sealing strip is often provided at the junction of the connecting strips and the shielding pieces.

[0004] However, when repairing or replacing the connecting strips and shielding pieces of the sealing cover, the traditional connecting strips are inconvenient to disassemble; and when replacing the sealing strips, the sealing strips need to be inserted into the connecting strips from one end to the other along the length direction of the connecting strips, which is a time-consuming and labor-intensive operation.

[0005] Therefore, how to solve the problems of inconvenient disassembly and poor sealing of the connecting strips is a technical problem that needs to be solved urgently in this field.

[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the Invention

[0007] The embodiments of the present disclosure at least provide a sealing structure for a storage tank and a construction method thereof.

[0008] In a first aspect, an embodiment of the present disclosure provides a sealing structure for a storage tank, comprising:

[0009] Support keel;

[0010] A plurality of shielding pieces, the edges of which are bent downwardly and inclined to be inserted into the upper end of the supporting keel;

[0011] A plurality of connecting components, wherein the connecting components are adapted to abut against the supporting keel and the shielding sheet;

[0012] Wherein, after the bottom wall of the connecting assembly abuts against the supporting keel, the two ends of the sealing member abut against two adjacent shielding sheets respectively to form a double-layer seal.

[0013] In an optional embodiment, the support keel includes: a support beam;

[0014] A fixing block, which is arranged at the upper end of the support beam and has a threaded groove adapted to the bolt;

[0015] Two support blocks are symmetrically arranged on both sides of the fixed block, and the support blocks are suitable for abutting against the inner wall of the bending area of ​​the shielding piece.

[0016] In an optional embodiment, the connecting assembly includes: a connecting member, wherein a fixing groove adapted to fit the fixing block is defined in the portion thereof;

[0017] The sealing member is located above the connecting member, and two sides of the sealing member are suitable for abutting against the outer walls of the bending areas of the two shielding sheets;

[0018] The sealing member is provided with a fixing hole, and the bolt is suitable for passing through the fixing hole;

[0019] The fixing block is adapted to be inserted into the fixing groove, and the connecting member is adapted to press the bending area of ​​the shielding sheet to move toward the supporting block until it abuts against the supporting block;

[0020] The bolt passes through the fixing hole to press the sealing member until the sealing member abuts against the connecting member.

[0021] In an optional embodiment, an extension plate is provided on each side of the connecting member, and the extension plate is vertically fixed to the outer wall of the connecting member;

[0022] The extension plate is suitable for pressing the bending area of ​​the shielding piece so that the inner wall of the bending area abuts against the support block.

[0023] In an optional embodiment, the connecting member is provided with a plurality of through holes in the vertical direction, each of the through holes is provided with a reset spring, the upper end of the reset spring is fixed to the bottom wall of the sealing member, and the reset spring is suitable for pushing the sealing member to move in a direction away from the connecting member.

[0024] In an optional embodiment, the sealing member is provided with a positioning groove on both sides of the bottom wall close to the extension plate, and a sealing strip is fixed in each positioning groove. The sealing strip is "C"-shaped, and one end of the sealing strip protrudes from the upper surface of the sealing member.

[0025] Wherein, the outer wall of the sealing strip is suitable for abutting against the side wall of the bending area of ​​the shielding piece.

[0026] In an optional embodiment, the sealing member is provided with two collecting grooves along the length direction, and the two collecting grooves are respectively arranged above the gap between the fixing block and the supporting block;

[0027] The upper surface of the connecting piece is provided with a sealing block adapted to the collecting groove, and the sealing block and the collecting groove are slidably sealed;

[0028] Wherein, the sealing member is pushed away from the connecting member, and the collecting groove is adapted to guide the liquid to flow toward the gap between the fixing block and the supporting block;

[0029] The sealing member is squeezed and abuts against the connecting member. The sealing block is suitable for being inserted into the collecting groove, and the upper end of the sealing block protrudes from the upper surface of the sealing member.

[0030] In an optional embodiment, a plurality of shielding sheets have edges thereof bent obliquely downward to be inserted into the upper end of the supporting keel;

[0031] A plurality of connecting components, wherein the connecting components are adapted to abut against the supporting keel and the shielding sheet;

[0032] The connecting assembly includes: a connecting piece, wherein a fixing groove adapted to the supporting keel is provided in the middle thereof;

[0033] The sealing member is located above the connecting member, and two sides of the sealing member are suitable for abutting against the outer walls of the bending areas of the two shielding sheets;

[0034] The sealing member is provided with a fixing hole, and the bolt is suitable for passing through the fixing hole;

[0035] The connecting piece is in contact with the supporting keel, and the connecting piece is suitable for squeezing the bending area of ​​the shielding sheet to move toward the supporting block until it contacts the supporting block;

[0036] The bolt passes through the fixing hole to press the sealing member so as to abut against the connecting member.

[0037] In an optional embodiment, the connecting member is provided with a plurality of through holes in the vertical direction, each of the through holes is provided with a reset spring, the upper end of the reset spring is fixed to the bottom wall of the sealing member, and the reset spring is suitable for pushing the sealing member to move in a direction away from the connecting member.

[0038] In an optional embodiment, the sealing member is provided with a positioning groove on both sides of the bottom wall close to the extension plate, and a sealing strip is fixed in each positioning groove. The sealing strip is "C"-shaped, and one end of the sealing strip protrudes from the upper surface of the sealing member.

[0039] The sealing member is squeezed downward, and the outer wall of the sealing strip is adapted to abut against the side wall of the bending area of ​​the shielding piece.

[0040] In an optional embodiment, the sealing member is provided with two collecting grooves along the length direction, and the two collecting grooves are respectively arranged above the gap between the fixing block and the supporting block;

[0041] The upper surface of the connecting piece is provided with a sealing block adapted to the collecting groove, and the sealing block and the collecting groove are slidably sealed;

[0042] Wherein, the sealing member is pushed away from the connecting member, and the collecting groove is adapted to guide the liquid to flow toward the gap between the fixing block and the supporting block;

[0043] The sealing member is squeezed and abuts against the connecting member. The sealing block is suitable for being inserted into the collecting groove, and the upper end of the sealing block protrudes from the upper surface of the sealing member.

[0044] In a second aspect, the present disclosure also provides a construction method of a sealing structure, comprising:

[0045] After the bottom wall of the connecting assembly abuts against the supporting keel, the sealing member of the connecting assembly continues to move downward, and the two ends of the sealing member respectively abut against the two adjacent shielding sheets to form a double-layer seal;

[0046] When replacing the sealing strip, the sealing member moves upward, the connecting assembly continues to limit the bending area of ​​the shielding piece, and the sealing member moves upward relative to the connecting member to facilitate the replacement of the sealing strip.

[0047] The beneficial effect of the present invention is that the sealing structure for the storage tank of the present invention, through the cooperation of the connecting assembly and the supporting keel, when fixed, the cooperation of the connecting part, the sealing part and the sealing strip can achieve the effect of a double-layer sealing shielding sheet; and the sealing part moves upward relative to the connecting part to facilitate the replacement of the sealing strip.

[0048] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purposes and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 A perspective view of a sealing structure for a storage tank provided in an embodiment of the present disclosure;

[0052] Figure 2 A partial schematic diagram of a shielding sheet, a supporting keel, and a connecting assembly provided in an embodiment of the present disclosure;

[0053] Figure 3 A perspective view of a connection assembly provided in accordance with an embodiment of the present disclosure;

[0054] Figure 4 Schematic diagram of the assembly of the shielding sheet, support keel and connecting components provided in an embodiment of the present disclosure.

[0055] In the picture:

[0056] 1. Support keel; 11. Support beam; 12. Fixing block; 13. Support block; 14. Threaded groove;

[0057] 2. Shielding film;

[0058] 3. Connecting assembly; 30. Sealing piece; 31. Connecting piece; 32. Fixing hole; 33. Fixing groove; 34. Extension plate; 35. Return spring; 36. Positioning groove; 37. Sealing strip; 38. Collecting groove; 39. Sealing block. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0060] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0061] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0062] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0063] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0064] Research has revealed shortcomings in existing technologies: In related technologies, the sealing cover is formed by splicing together several shielding pieces of uniform size and supporting keels, and the shielding pieces are fixed to the supporting keels via connecting strips. To improve the sealing between the shielding pieces and the supporting keels, sealing strips are often provided at the junction of the strips and the shielding pieces.

[0065] However, when repairing or replacing the connecting strips and shielding pieces of the sealing cover, the traditional connecting strips are inconvenient to disassemble; and when replacing the sealing strips, the sealing strips need to be inserted into the connecting strips from one end to the other along the length direction of the connecting strips, which is a time-consuming and labor-intensive operation.

[0066] Therefore, how to solve the problem of inconvenient disassembly of the connecting strips and poor sealing is a technical problem that urgently needs to be solved in this field.

[0067] The defects in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0068] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0069] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0070] like Figures 1 to 4 As shown, some embodiments provide a sealing structure for a storage tank, comprising: a supporting keel 1; a plurality of said supporting keels 1 intersecting each other to form a supporting frame; a plurality of shielding sheets 2, the edges of which are bent downwardly to be inserted into the upper end of the supporting keel 1; the shielding sheet 2 is rectangular, and the edges of the shielding sheet 2 are all bent downwardly, and the downwardly bent portion can be referred to as a bending area. A plurality of connecting components 3, said connecting components 3 being suitable for abutting against the supporting keel 1 and the shielding sheet 2; the connecting components 3 not only serve to connect and fix the supporting keel 1 and the shielding sheet 2, but also serve as a seal to prevent rainwater on the upper surface of the shielding sheet 2 from flowing downward into the storage tank along the gap between the supporting keel 1 and the connecting components 3. Particularly, after the bottom wall of the connecting component 3 abuts against the supporting keel 1, the two ends of the sealing member 3 respectively abut against the two adjacent shielding sheets 2 to form a double-layer seal. Several of the supporting keels 1, several shielding sheets 2 and several connecting components 3 form a sealing cover plate with an arc; through the cooperation of the connecting component 3 and the supporting keel 1, when fixed, the cooperation of the connecting member 31, the sealing member 30 and the sealing strip 37 can achieve the effect of a double-layer sealing shielding sheet 2; and the sealing member 30 moves upward relative to the connecting member 31 to facilitate the replacement of the sealing strip 37.

[0071] Reference Attachment Figure 2The support keel 1 includes: a support beam 11, which is arranged below the shielding sheet 2 and between two adjacent shielding sheets 2. A fixing block 12, which is arranged at the upper end of the support beam 11 and has a threaded groove 14 adapted to accommodate a bolt; the fixing block 12 is arranged between two adjacent shielding sheets 2, and the bolt is adapted to threadably engage with the threaded groove 14 when passing through the fixing hole 32, that is, the bolt is adapted to secure the seal 30 and the connector 31 to the upper end of the fixing block 12. Two support blocks 13 are symmetrically arranged on both sides of the fixing block 12, and are adapted to abut against the inner wall of the bending region of the shielding sheet 2. The support block 13 is suitable for limiting the bending area. During assembly, the connecting component 3 moves toward the support beam 11 until the connecting member 31 abuts against the outer wall of the bending area, and the extension plate 34 squeezes the bending area to move it toward the support block 13 until the inner wall of the bending area abuts against the support block 13; the support block 13 is suitable for preventing the bending area from continuing to tilt downward and deform, and the extension plate 34 abuts against the outer wall of the bending area to form a first layer of sealing.

[0072] Reference Attachment Figure 3 The connecting assembly 3 includes: a connecting member 31, a fixing groove 33 adapted to the fixing block 12 is provided in the middle thereof; the fixing block 12 is suitable for being inserted into the fixing groove 33; the sealing member 30 is located above the connecting member 31, and the two sides of the sealing member 30 are suitable for abutting against the outer walls of the bending area of ​​the two shielding sheets 2; the sealing member 30 is respectively provided with a positioning groove 36 on the bottom walls on both sides close to the extension plate 34, and a sealing strip 37 is fixed in each of the positioning grooves 36, the sealing strip 37 is "C"-shaped, and one end of the sealing strip 37 protrudes from the upper surface of the sealing member 30; wherein, when the sealing member 30 is squeezed and moved downward, the outer wall of the sealing strip 37 is suitable for abutting against the side wall of the bending area of ​​the shielding sheet 2 to form a second layer of sealing. The sealing member 30 is provided with a fixing hole 32 through which a bolt is adapted to pass. During fixing, the bolt passes through the fixing hole 32 and engages with the threaded groove 14. The bolt is then rotated circumferentially to secure the sealing member 30 and the connecting member 31 to the support beam 11. The connecting member 31 is moved downward until the fixing block 12 is inserted into the fixing groove 33. The connecting member 31 is adapted to press the bent area of ​​the shielding sheet 2 toward the support block 13 until it abuts against the connecting member 31. The bolt passes through the fixing hole 32 to press the sealing member 30 until it abuts against the connecting member 31.

[0073] Reference Attachment Figure 3 An extension plate 34 is provided on both sides of the connecting member 31, and the extension plate 34 is vertically fixed to the outer wall of the connecting member 31; wherein, when the connecting member 31 moves downward, the extension plate 34 is suitable for squeezing the bending area of ​​the shielding piece 2 so that the inner wall of the bending area abuts against the support block 13.

[0074] To facilitate replacement of the sealing strip 37, the connector 31 has several vertical through-holes. A return spring 35 is located in each of the through-holes. The upper end of the return spring 35 is fixed to the bottom wall of the sealing member 30. The return spring 35 is adapted to push the sealing member 30 away from the connector 31. When the bolt is not threadedly secured to the spiral groove, the seal 30 is pushed away from the connector 31 by the return spring 35.

[0075] Reference Attachment Figure 3 In order to prevent liquid from flowing into the storage tank, the sealing member 30 is provided with two collecting grooves 38 along the length direction, and the two collecting grooves 38 are respectively arranged above the gap between the fixed block 12 and the supporting block 13; the upper surface of the connecting member 31 is provided with a sealing block 39 adapted to the collecting groove 38, and the sealing block 39 and the collecting groove 38 are slidably sealed; wherein, when the sealing member 30 is pushed to move in the direction away from the connecting member 31, the collecting groove 38 is suitable for guiding the liquid to flow into the gap between the fixed block 12 and the supporting block 13; when the sealing member 30 is squeezed to move in the direction of the connecting member 31, the sealing block 39 is suitable for inserting into the collecting groove 38, and the upper end of the sealing block 39 protrudes from the upper surface of the sealing member 30.

[0076] Some embodiments provide a sealing structure for a storage tank, comprising:

[0077] A plurality of shielding sheets 2, the edges of which are bent downwardly and inclined to be inserted into the upper end of the supporting keel 1;

[0078] A plurality of connecting components 3, wherein the connecting components 3 are adapted to abut against the supporting keel 1 and the shielding sheet 2;

[0079] The connecting assembly 3 includes: a connecting member 31, wherein a fixing groove 33 adapted to the supporting keel 1 is provided in the middle thereof;

[0080] The sealing member 30 is located above the connecting member 31 , and both sides of the sealing member 30 are adapted to abut against the outer walls of the bending regions of the two shielding sheets 2 ;

[0081] The sealing member 30 is provided with a fixing hole 32 , and a bolt is adapted to pass through the fixing hole 32 ;

[0082] The connecting member 31 moves downward until it abuts against the supporting keel 1 , and the connecting member 31 is adapted to squeeze the bent area of ​​the shielding sheet 2 toward the supporting block 13 until it abuts against the supporting block 13 ;

[0083] The bolt passes through the fixing hole 32 to press the sealing member 30 so that the sealing member 30 moves downward until it abuts against the connecting member 31 .

[0084] Furthermore, the connecting member 31 is provided with a plurality of through holes in the vertical direction, and a return spring 35 is provided in each of the through holes. The upper end of the return spring 35 is fixed to the bottom wall of the sealing member 30, and the return spring 35 is suitable for pushing the sealing member 30 to move away from the connecting member 31.

[0085] Furthermore, the bottom wall of the sealing member 30 on both sides close to the extension plate 34 is respectively provided with a positioning groove 36, and a sealing strip 37 is fixed in each positioning groove 36. The sealing strip 37 is "C"-shaped, and one end of the sealing strip 37 protrudes from the upper surface of the sealing member 30;

[0086] When the sealing member 30 is squeezed and moved downward, the outer wall of the sealing strip 37 is adapted to abut against the side wall of the bending area of ​​the shielding piece 2 .

[0087] Furthermore, the sealing member 30 is provided with two collecting grooves 38 along the length direction, and the two collecting grooves 38 are respectively provided above the gap between the fixing block 12 and the supporting block 13;

[0088] The upper surface of the connecting member 31 is provided with a sealing block 39 adapted to the collecting groove 38, and the sealing block 39 and the collecting groove 38 are slidably sealed;

[0089] When the sealing member 30 is pushed to move away from the connecting member 31 , the collecting groove 38 is adapted to guide the liquid to flow into the gap between the fixing block 12 and the supporting block 13 ;

[0090] When the sealing member 30 is squeezed and moved toward the connecting member 31 , the sealing block 39 is adapted to be inserted into the collecting groove 38 , and the upper end of the sealing block 39 protrudes from the upper surface of the sealing member 30 .

[0091] Some embodiments provide a construction method of a sealing structure, the construction method comprising:

[0092] After the bottom wall of the connecting assembly 3 abuts against the supporting keel 1, the sealing member 30 of the connecting assembly 3 continues to move downward, and the two ends of the sealing member 30 abut against the two adjacent shielding sheets 2 to form a double-layer seal;

[0093] When replacing the sealing strip 37 , the sealing member 30 moves upward, the connecting assembly 3 continues to limit the bending area of ​​the shielding piece 2 , and the sealing member 30 moves upward relative to the connecting member 31 to facilitate the replacement of the sealing strip 37 .

[0094] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0095] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0096] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A sealing structure for a storage tank, characterized in that: include: Support keel (1); A plurality of shielding plates (2) whose edges are bent downwardly and inclined to be inserted into the upper end of the supporting keel (1); A plurality of connection assemblies (3), wherein the connection assemblies (3) are suitable for abutting against the supporting keel (1) and the shielding sheet (2); Wherein, after the bottom wall of the connecting assembly (3) abuts against the supporting keel (1), the two ends of the sealing member (30) respectively abut against two adjacent shielding sheets (2) to form a double-layer seal; The connecting assembly (3) comprises: a connecting piece (31), wherein a fixing groove (33) adapted to the fixing block (12) is provided on the middle portion; The sealing member (30) is located above the connecting member (31), and a fixing hole (32) is provided on the sealing member (30), and a bolt is suitable for passing through the fixing hole (32); The bolt passes through the fixing hole (32) to squeeze the sealing member (30) until it abuts against the connecting member (31); The connecting member (31) is provided with a plurality of through holes in a vertical direction, and a return spring (35) is provided in each of the through holes. The upper end of the return spring (35) is fixed to the bottom wall of the sealing member (30), and the return spring (35) is suitable for pushing the sealing member (30) to move in a direction away from the connecting member (31); The sealing strip (37) is located between the sealing member (30) and the connecting member (31), and the outer wall of the sealing strip (37) is suitable for abutting against the side wall of the bending area of ​​the shielding sheet (2).

2. The sealing structure for a storage tank according to claim 1, wherein: The supporting keel (1) comprises: a supporting beam (11); A fixing block (12) is arranged at the upper end of the support beam (11) and is provided with a threaded groove (14) adapted to the bolt; Two support blocks (13), the two support blocks (13) are symmetrically arranged on both sides of the fixed block (12), and the support blocks (13) are suitable for abutting against the inner wall of the bending area of ​​the shielding piece (2).

3. The sealing structure for a storage tank according to claim 2, wherein: Both sides of the sealing member (30) are suitable for abutting against the outer walls of the bending regions of the two shielding sheets (2); The fixing block (12) is suitable for being inserted into the fixing groove (33), and the connecting member (31) is suitable for squeezing the bending area of ​​the shielding sheet (2) to move toward the supporting block (13) until it abuts.

4. The sealing structure for a storage tank according to claim 3, wherein: An extension plate (34) is provided on each side of the connecting member (31), and the extension plate (34) is vertically fixed to the outer wall of the connecting member (31); The extension plate (34) is suitable for squeezing the bending area of ​​the shielding sheet (2) so that the inner wall of the bending area abuts against the support block (13).

5. The sealing structure for a storage tank according to claim 4, wherein: The sealing member (30) is provided with a positioning groove (36) on both sides of the bottom wall close to the extension plate (34), and a sealing strip (37) is fixed in each positioning groove (36). The sealing strip (37) is "C"-shaped, and one end of the sealing strip (37) protrudes from the upper surface of the sealing member (30).

6. The sealing structure for a storage tank according to claim 5, wherein: The sealing member (30) is provided with two collecting grooves (38) along the length direction, and the two collecting grooves (38) are respectively arranged above the gap between the fixing block (12) and the supporting block (13); A sealing block (39) adapted to the collecting groove (38) is provided on the upper surface of the connecting member (31), and the sealing block (39) and the collecting groove (38) are slidably sealed. The sealing member (30) is pushed away from the connecting member (31), and the collecting groove (38) is suitable for guiding the liquid to flow toward the gap between the fixing block (12) and the supporting block (13); The sealing member (30) is squeezed and abuts against the connecting member (31), and the sealing block (39) is suitable for being inserted into the collecting groove (38), and the upper end of the sealing block (39) protrudes from the upper surface of the sealing member (30).

7. A sealing structure for a storage tank, characterized in that: include: A plurality of shielding plates (2) whose edges are bent downwardly and inclined to be inserted into the upper end of the supporting keel (1); A plurality of connection assemblies (3), wherein the connection assemblies (3) are suitable for abutting against the supporting keel (1) and the shielding sheet (2); The connecting assembly (3) comprises: a connecting piece (31), wherein a fixing groove (33) adapted to the supporting keel (1) is provided in the middle thereof; The sealing member (30) is located above the connecting member (31), and both sides of the sealing member (30) are suitable for abutting against the outer walls of the bending regions of the two shielding sheets (2); A sealing strip (37) is located between the sealing member (30) and the connecting member (31); The sealing member (30) is provided with a fixing hole (32), and a bolt is adapted to pass through the fixing hole (32); The connecting member (31) abuts against the supporting keel (1), and the connecting member (31) is suitable for squeezing the bending area of ​​the shielding sheet (2) to move toward the supporting block (13) until the connecting member abuts against the supporting keel (1). The bolt passes through the fixing hole (32) to squeeze the sealing member (30) so that it abuts against the connecting member (31); The connecting member (31) is provided with a plurality of through holes in a vertical direction, and a return spring (35) is provided in each of the through holes. The upper end of the return spring (35) is fixed to the bottom wall of the sealing member (30), and the return spring (35) is suitable for pushing the sealing member (30) to move in a direction away from the connecting member (31).

8. The sealing structure for a storage tank according to claim 7, wherein: An extension plate (34) is provided on both sides of the connecting member (31), and a positioning groove (36) is provided on the bottom wall of both sides of the sealing member (30) close to the extension plate (34). A sealing strip (37) is fixed in each of the positioning grooves (36), and the sealing strip (37) is "C"-shaped, and one end of the sealing strip (37) protrudes from the upper surface of the sealing member (30); The sealing member (30) is pressed downward, and the outer wall of the sealing strip (37) is suitable for abutting against the side wall of the bending area of ​​the shielding sheet (2).

9. The sealing structure for a storage tank according to claim 8, wherein: The supporting keel (1) further includes a fixing block (12), and the sealing member (30) is provided with two collecting grooves (38) along the length direction, and the two collecting grooves (38) are respectively arranged above the gap between the fixing block (12) and the supporting block (13); A sealing block (39) adapted to the collecting groove (38) is provided on the upper surface of the connecting member (31), and the sealing block (39) and the collecting groove (38) are slidably sealed. The sealing member (30) is pushed away from the connecting member (31), and the collecting groove (38) is suitable for guiding the liquid to flow toward the gap between the fixing block (12) and the supporting block (13); The sealing member (30) is squeezed and abuts against the connecting member (31), and the sealing block (39) is suitable for being inserted into the collecting groove (38), and the upper end of the sealing block (39) protrudes from the upper surface of the sealing member (30).

10. A construction method for a sealing structure for a storage tank according to any one of claims 1 to 6, characterized in that: include: After the bottom wall of the connecting assembly (3) abuts against the supporting keel (1), the sealing member (30) of the connecting assembly (3) continues to move downward, and the two ends of the sealing member (30) respectively abut against the two adjacent shielding sheets (2) to form a double-layer seal; When the sealing strip (37) is replaced, the sealing member (30) moves upward, the connecting assembly (3) continues to limit the bending area of ​​the shielding piece (2), and the sealing member (30) moves upward relative to the connecting member (31) to facilitate the replacement of the sealing strip (37).

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