Sealing structure for steel sheet pile connection

Abstract

The invention discloses a sealing structure for steel sheet pile connection, relates to the field of sealing structures for steel sheet pile connection, and solves the problem that the sealing effect is relatively poor as the sealing function is realized only through metal fitting and abutting when the existing sealing structure for steel sheet pile connection is used. The connecting mechanism comprises a sliding rod, the sealing mechanism comprises a bent plate and a sealing gasket, and a plurality of sets of mounting grooves are formed in the bent plate, the sliding rod blocks the internal area of the lock catch in advance through the connecting mechanism, the sliding rod is pulled out after the steel plate body is mounted, and it is guaranteed that the interior of the lock catch is clean; after the two adjacent lock catches are in butt joint through the sealing mechanism, the sealing gaskets are controlled to be extruded and abut against each other, the gap position is sealed, meanwhile, the sliding rods protect the positions of the sealing gaskets in advance, the service life of the sealing gaskets is prolonged, and it is guaranteed that the internal areas of the lock catches are relatively clean in the sealing process.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing structures for steel sheet pile connections, and specifically to a sealing structure for steel sheet pile connections. Background Technique

[0002] With the development of China's water conservancy projects and foundation construction fields, new requirements for the application of steel sheet piles have been put forward in the country. Steel sheet piles are an efficient and economical building material, with characteristics such as standardized dimensions, strong bearing capacity, and simple construction, and are widely used in structural foundation projects such as wharves, bank protection, river regulation, water-stop cofferdams, and building foundation pit support.

[0003] Existing steel sheet piles generally rely only on the snap connections on both sides for sealing during construction. This connection method has a good sealing effect when blocking large-particle substances such as soil mortar, but during the construction of a water conservancy cofferdam, water is likely to leak at the connection part of the steel sheet piles, affecting the construction efficiency of the internal area of the cofferdam. Moreover, the inside of the bent structure of the snap connection is hollow, and it is easily deformed by extrusion during construction, and impurities such as sand and gravel may enter the inside of the snap connection, affecting the docking effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a sealing structure for steel sheet pile connections that is convenient for improving the sealing performance at the connection of steel sheet piles while ensuring the stable operation of the equipment, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A sealing structure for steel sheet pile connections, including a steel plate body, a connection mechanism, and a sealing mechanism. Both ends of the steel plate body are respectively fixedly connected with snap connections. The connection mechanism includes a sliding rod slidably connected to the inner wall of the snap connection. The connection mechanism is used to pre-block the inner area of the snap connection through the sliding rod and pull out the sliding rod after the installation of the steel plate body is completed to ensure the cleanliness of the inside of the snap connection. The sealing mechanism includes a bent plate fixedly installed inside the snap connection. Multiple installation grooves are opened on the bent plate, and sealing gaskets are fixedly connected in the installation grooves. The sealing mechanism is used to control the sealing gaskets to be extruded and abutted after the docking of two adjacent snap connections is completed, so as to achieve the sealing function at the gap position, which is convenient for improving the sealing performance at the connection of steel sheet piles while ensuring the stable operation of the equipment.

[0006] Preferably, the sealing mechanism further includes a push rod installed on the side of the bent plate. A guiding groove is provided between the bent plate and the snap connection, and the push rod is slidably connected to the inner wall of the guiding groove in the vertical direction, which is convenient for controlling the sealing gaskets to be extruded and abutted after the docking of two adjacent snap connections is completed, so as to achieve the sealing function at the gap position.

[0007] Preferably, the connecting mechanism further includes a first docking rod, a second docking rod, and a third docking rod installed at the bottom of the steel plate body. Docking grooves are provided at one end of the second docking rod and both ends of the third docking rod, which can be docked with the adjacent first docking rod, second docking rod, and third docking rod. A connecting piece for connecting the first docking rod, the second docking rod, and the third docking rod is provided on the steel plate body, which facilitates pre-blocking the internal area of the lock by the sliding rod and pulling out the sliding rod after the installation of the steel plate body is completed to ensure the cleanliness inside the lock.

[0008] Preferably, the connecting piece includes plug-in blocks fixedly installed on the first docking rod, the second docking rod, and the third docking rod. Plug-in grooves capable of being plugged with the plug-in blocks are provided at the bottom of the steel plate body. Two groups of fixing rods are fixedly connected to the steel plate body, and a control piece for controlling the connection state between the plug-in block and the plug-in groove is provided on the fixing rods, which facilitates connecting the first docking rod, the second docking rod, and the third docking rod.

[0009] Preferably, the control piece includes a helical tooth block installed on the fixing rod. A sliding groove is provided on the fixing rod, and the helical tooth block is slidably connected to the inner wall of the sliding groove. A clamping groove capable of being plugged with the helical tooth block is provided on the side of the plug-in block. One end of the helical tooth block is fixedly connected to a return spring fixedly connected to the sliding groove, and a driving piece for controlling the plugging state of the helical tooth block from the top is provided on the fixing rod, which facilitates controlling the connection state between the plug-in block and the plug-in groove.

[0010] Preferably, the driving piece includes a steel wire rope fixedly installed on the helical tooth block. A driving groove is provided at the top end of the fixing rod, and a driving block is slidably connected in the driving groove. One end of the steel wire rope away from the helical tooth block is fixedly connected to the bottom of the steel wire rope. The steel wire rope penetrates the fixing rod and is slidably connected to the inner wall of the fixing rod, which facilitates controlling the plugging state of the helical tooth block from the top.

[0011] Preferably, the bottom surfaces of the first docking rod, the second docking rod, and the third docking rod are all designed in a conical shape, which facilitates downward insertion into the soil layer.

[0012] Preferably, a slope surface is provided at the bottom end of the push rod, which facilitates insertion into the guide groove and pushing and squeezing the sealing gasket outward.

[0013] Preferably, the top cross-section of the push rod is L-shaped, which facilitates improving the sealing performance at the docking part by increasing the corner.

[0014] Preferably, a limiting block is fixedly connected to the side surface of the top end of the push rod, which is convenient for judging the insertion position of the push rod. When the bottom surface of the limiting block abuts against the top surface of the lock catch, it means that the push rod is inserted to the deepest position.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The sealing structure for steel sheet pile connection provided by the present invention solves the problems that the existing sealing structure for steel sheet pile connection only realizes the sealing function through metal fitting and abutment during use, the sealing effect is relatively poor, and the sealing gasket wears seriously during the process of inserting into the soil layer, resulting in a short service life. Through the connection mechanism, the sliding rod pre-blocks the internal area of the lock catch and pulls out the sliding rod after the steel plate body is installed, ensuring the cleanliness of the inside of the lock catch. Through the sealing mechanism, after two adjacent groups of lock catches are docked, the sealing gasket is controlled to be squeezed and abutted to realize the sealing function at the gap position, and at the same time, the sliding rod pre-protects the position of the sealing gasket, prolongs the service life of the sealing gasket, ensures the relative cleanliness of the internal area of the lock catch during the sealing process, and improves the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the docking state structure of the present invention; Figure 3 is Figure 2 an enlarged view of area A in Figure 4 is a schematic diagram of the structure of the present invention in the state where the sliding rod is removed; Figure 5 is Figure 4 an enlarged view of area B in Figure 6 is a schematic diagram of the partial structure of the sealing mechanism of the present invention; Figure 7 is Figure 6 an enlarged view of area C in Figure 8 is a partial structure split view of the connection mechanism of the present invention; Figure 9 is a schematic diagram of the partial structure of the connecting piece of the present invention; Figure 10 is Figure 9 an enlarged view of area D in Figure 11 is a schematic diagram of the partial structure of the driving part of the present invention; Figure 12 is Figure 11 an enlarged view of area E in Figure 13 is an exploded view of the partial structure of the sealing mechanism of the present invention; Figure 14 is Figure 13 an enlarged view of area F in Figure 15 a schematic diagram of the partial structure of the control part of the present invention; Figure 16 is Figure 15 an enlarged view of area G in

[0017] In the figure: 1 - steel plate body; 2 - lock; 3 - connection mechanism; 4 - sliding rod; 5 - sealing mechanism; 6 - bent plate; 7 - installation groove; 8 - sealing gasket; 9 - push rod; 10 - guiding groove; 11 - first docking rod; 12 - second docking rod; 13 - third docking rod; 15 - docking groove; 16 - connecting piece; 17 - inserting block; 18 - inserting groove; 19 - fixing rod; 20 - control part; 22 - helical tooth block; 23 - sliding groove; 24 - clamping groove; 25 - return spring; 26 - driving part; 28 - steel wire rope; 29 - driving groove; 30 - driving block; 31 - limiting block. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0019] Please refer to Figures 1 - 16 , the present invention provides a technical solution: a sealing structure for connecting steel sheet piles, including a steel plate body 1, a connection mechanism 3 and a sealing mechanism 5. Locking devices 2 are fixedly connected to both ends of the steel plate body 1 respectively. The connection mechanism 3 includes a sliding rod 4 that is slidably connected to the inner wall of the locking device 2. The connection mechanism 3 is used to pre-block the inner area of the locking device 2 through the sliding rod 4 and pull out the sliding rod 4 after the installation of the steel plate body 1 is completed to ensure the cleanliness of the inside of the locking device 2. The sealing mechanism 5 includes a bent plate 6 fixedly installed inside the locking device 2. Multiple installation grooves 7 are formed on the bent plate 6, and a sealing gasket 8 is fixedly connected inside the installation grooves 7. The sealing mechanism 5 is used to control the sealing gasket 8 to be extruded and abutted after the docking of two adjacent locking devices 2 is completed, so as to realize the sealing function at the gap position.

[0020] The sealing mechanism 5 further includes a push rod 9 installed on the side surface of the bent plate 6. A guiding groove 10 is provided between the bent plate 6 and the locking device 2. The push rod 9 is slidably connected to the inner wall of the guiding groove 10 in the vertical direction. The bottom end of the push rod 9 is provided with a slope surface. The top cross-section of the push rod 9 is L-shaped, and a limiting block 31 is fixedly connected to the side surface of the top end of the push rod 9.

[0021] The connecting mechanism 3 further includes a first docking rod 11, a second docking rod 12, and a third docking rod 13 installed at the bottom of the steel plate body 1. Docking grooves 15 capable of docking with adjacent first docking rods 11, second docking rods 12, and third docking rods 13 are provided at one end of the second docking rod 12 and both ends of the third docking rod 13. The bottom surfaces of the first docking rod 11, the second docking rod 12, and the third docking rod 13 are all designed to be conical. A connecting member 16 for connecting the first docking rod 11, the second docking rod 12, and the third docking rod 13 is provided on the steel plate body 1.

[0022] The connecting member 16 includes plug-in blocks 17 fixedly installed on the first docking rod 11, the second docking rod 12, and the third docking rod 13. Plug-in slots 18 capable of being plugged with the plug-in blocks 17 are provided at the bottom of the steel plate body 1. Two groups of fixing rods 19 are fixedly connected to the steel plate body 1. A control member 20 for controlling the connection state between the plug-in block 17 and the plug-in slot 18 is provided on the fixing rods 19.

[0023] The control member 20 includes a helical gear block 22 installed on the fixing rod 19. A sliding slot 23 is provided on the fixing rod 19. The helical gear block 22 is slidably connected to the inner wall of the sliding slot 23. A clamping slot 24 capable of being plugged with the helical gear block 22 is provided on the side surface of the plug-in block 17. One end of the helical gear block 22 is fixedly connected to a return spring 25 fixedly connected to the sliding slot 23. A driving member 26 for controlling the plugging state of the helical gear block 22 from the top is provided on the fixing rod 19.

[0024] The driving member 26 includes a steel wire rope 28 fixedly installed on the helical gear block 22. A driving slot 29 is provided at the top end of the fixing rod 19. A driving block 30 is slidably connected in the driving slot 29. One end of the steel wire rope 28 away from the helical gear block 22 is fixedly connected to the bottom of the steel wire rope 28. The steel wire rope 28 penetrates through the fixing rod 19 and is slidably connected to the inner wall of the fixing rod 19.

[0025] In this implementation plan, a first docking rod 11 is installed at the bottom of the first group of steel plate bodies 1 to be installed, a third docking rod 13 is installed at the bottom of the last installed steel plate body 1, and a second docking rod 12 is installed on the remaining middle steel plate bodies 1. During installation, the insertion block 17 is inserted into the insertion slot 18, so that the helical tooth block 22 is inserted into the clamping slot 24 to complete the fixation. The mechanical arm grabs one end of the first group of steel plate bodies 1 away from the first docking rod 11 and vertically inserts it into the set position. The sliding rods 4 are inserted into the locks 2 on both sides of the steel plate body 1, so that the inside of the lock 2 is in a state of being supported by the sliding rods 4 during the insertion process. At the same time, the first docking rod 11 at the bottom can block the bottom of the lock 2 and the sliding rod 4, so that the main force during the downward insertion process is on the first docking rod 11. A spring buckle that can be clamped with the inner wall of the lock 2 can be provided at the top of the sliding rod 4, so that the upward thrust of the soil layer on the sliding rod 4 during the downward insertion process cannot directly push the sliding rod 4, ensuring the synchronous downward insertion state of the lock 2 and the sliding rod 4. After the downward insertion is completed, the sliding rod 4 at the position where it needs to be docked with the adjacent lock 2 can be pulled out upward, and at the same time, the clamping of the spring buckle is released (the spring buckle structure can adopt a linkage control structure similar to that of the control member 20 to improve the disassembly and assembly efficiency).

[0026] The mechanical arm grabs one end of the adjacent steel plate body 1, so that the docking groove 15 fits against the outer wall of the lock 2. At the same time, the lock 2 on one side of the steel plate body 1 is docked with the inserted lock 2. Then, the steel plate body 1 is controlled to be inserted downward until it is flush with the top surface of the adjacent steel plate body 1. At this time, the bottom of the inserted lock 2 abuts against the top surface of the adjacent first docking rod 11, and the two locks 2 are in mutual contact and abutment. During this process, the sliding rod 4 is not installed inside the lock 2 above the docking groove 15, and the sliding rod 4 needs to be installed on the other side for support. After the docking is completed, the push rod 9 is inserted into the guiding groove 10, so that the tip position of the push rod 9 continuously moves downward and pushes the sealing gasket 8 from the installation groove 7 to one side of the adjacent lock 2. After the push rods 9 in the two locks 2 are inserted, at this time, the sealing gasket 8 is pushed out of the guiding groove 10. When the sealing gasket 8 is in the reset state, half of it is inside the guiding groove 10 and the other half is inside the installation groove 7. When it is pushed out by the push rod 9, half of it is inside the installation groove 7 and the other half is pushed out of the installation groove 7 and abuts against the other lock 2 for sealing.

[0027] When the bottom surface of the limit block 31 abuts against the top surface of the lock 2, it indicates that the push rod 9 is inserted completely, and the connection and sealing operations of a group of steel sheet piles can be completed. Then, repeat the above operations in sequence to complete the mutual docking of a circle of steel sheet piles. When the last group of steel sheet bodies 1 needs to be installed, the docking grooves 15 on both sides of the third docking rod 13 at the bottom of the steel sheet body 1 are respectively fitted with the outer walls of the adjacent locks 2. At this time, the sliding rods 4 do not need to be installed inside the locks 2 on both sides. Just insert the locks 2 on both sides into the adjacent two groups of locks 2. After the steel sheet body 1 is inserted, perform the above push rod 9 insertion operation to complete the sealing.

[0028] When demolition is required, the driving blocks 30 on both sides of the steel sheet body 1 are clamped by the robotic arm, and the driving blocks 30 are pulled upward to drive the steel wire rope 28 to pull the helical gear block 22 to slide in the sliding groove 23. While compressing the return spring 25, the clamping state between the helical gear block 22 and the clamping groove 24 is released. Then, pull the steel sheet body 1 upward to make the steel sheet body 1 come into contact and dock with the first docking rod 11, the second docking rod 12 or the third docking rod 13 below. At this time, there is no need to judge whether it is the first docking rod 11, the second docking rod 12 or the third docking rod 13 below the steel sheet body 1, which improves the demolition efficiency. If this structure is not set and the steel sheet body 1 is directly pulled out, it will cause the situation that the adjacent locks 2 press the first docking rod 11 or the second docking rod 12 below, making the demolition process must be carried out in reverse order according to the original installation sequence. Sometimes it is difficult to judge which was installed first and which was installed later. By setting this structure, this problem is effectively solved and the demolition efficiency is improved.

[0029] It should be noted that: when the steel sheet body 1 is inserted into the soil layer, the main force at the bottom is on the first docking rod 11, the second docking rod 12 and the third docking rod 13, which may cause wear and even impact deformation of the first docking rod 11, the second docking rod 12 and the third docking rod 13 during use. At this time, if the first docking rod 11, the second docking rod 12 and the third docking rod 13 are designed integrally with the steel sheet body 1, it will be difficult to repair the bottom of the steel sheet body 1 after deformation. Through this split-type combined installation method, when the steel sheet body 1 is pulled out, the first docking rod 11, the second docking rod 12 and the third docking rod 13 at the bottom are automatically separated and left underground. After the steel sheet body 1 is pulled out, new first docking rod 11, second docking rod 12 and third docking rod 13 can be reinstalled. Among them, the structures of the first docking rod 11, the second docking rod 12 and the third docking rod 13 are simple, only rod-shaped structures with some slotting designs, the production and use costs are relatively low, the replacement is convenient and efficient, the cost of direct separation after use is relatively low, and at the same time, the overall service life of the steel sheet body 1 can be extended.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for the connection of steel sheet piles, characterized in that, Including: A steel plate body (1), with locking catches (2) fixedly connected to both ends of the steel plate body (1) respectively; It further includes: A connecting mechanism (3), the connecting mechanism (3) includes a sliding rod (4) slidably connected to the inner wall of the locking catch (2), and the connecting mechanism (3) is used to pre-block the inner area of the locking catch (2) through the sliding rod (4), and pull out the sliding rod (4) after the installation of the steel plate body (1) is completed to ensure the cleanliness inside the locking catch (2); A sealing mechanism (5), the sealing mechanism (5) includes a bent plate (6) fixedly installed inside the locking catch (2), multiple installation grooves (7) are formed on the bent plate (6), a sealing gasket (8) is fixedly connected inside the installation groove (7), and the sealing mechanism (5) is used to control the sealing gasket (8) to be extruded and abutted after the docking of two adjacent locking catches (2) is completed to achieve the sealing function at the gap position.

2. The sealing structure for connecting steel sheet piles according to claim 1, wherein: The sealing mechanism (5) further includes a push rod (9) installed on the side of the bent plate (6), a guiding groove (10) is provided between the bent plate (6) and the locking catch (2), and the push rod (9) is slidably connected to the inner wall of the guiding groove (10) in the vertical direction.

3. A sealing structure for connecting steel sheet piles according to claim 1, characterized in that: The connecting mechanism (3) further includes a first docking rod (11), a second docking rod (12) and a third docking rod (13) installed at the bottom of the steel plate body (1), docking grooves (15) capable of docking with adjacent first docking rods (11), second docking rods (12) and third docking rods (13) are formed at one end of the second docking rod (12) and both ends of the third docking rod (13), and a connecting member (16) for connecting the first docking rod (11), the second docking rod (12) and the third docking rod (13) is provided on the steel plate body (1).

4. A sealing structure for steel sheet pile connection according to claim 3, characterized in that: The connecting member (16) includes plug-in blocks (17) fixedly installed on the first docking rod (11), the second docking rod (12) and the third docking rod (13), a plug-in groove (18) capable of being plugged with the plug-in block (17) is formed at the bottom of the steel plate body (1), two fixing rods (19) are fixedly connected to the steel plate body (1), and a control member (20) for controlling the connection state between the plug-in block (17) and the plug-in groove (18) is provided on the fixing rod (19).

5. The sealing structure for connecting steel sheet piles according to claim 4, wherein: The control member (20) includes a helical gear block (22) installed on the fixing rod (19), a sliding groove (23) is formed on the fixing rod (19), the helical gear block (22) is slidably connected to the inner wall of the sliding groove (23), a clamping groove (24) capable of being plugged with the helical gear block (22) is formed on the side of the plug-in block (17), a return spring (25) fixedly connected to the sliding groove (23) is fixedly connected to one end of the helical gear block (22), and a driving member (26) for controlling the plugging state of the helical gear block (22) from the top is provided on the fixing rod (19).

6. The sealing structure for connecting steel sheet piles according to claim 5, characterized in that: The driving member (26) includes a steel wire rope (28) fixedly installed on the helical tooth block (22). A driving groove (29) is formed at the top end of the fixing rod (19). A driving block (30) is slidably connected in the driving groove (29). One end of the steel wire rope (28) away from the helical tooth block (22) is fixedly connected to the bottom of the steel wire rope (28). The steel wire rope (28) penetrates through the fixing rod (19) and is slidably connected to the inner wall of the fixing rod (19).

7. A sealing structure for steel sheet pile connection according to claim 3, characterized in that: The bottom surfaces of the first docking rod (11), the second docking rod (12), and the third docking rod (13) are all designed in a conical shape.

8. A sealing structure for steel sheet pile connection according to claim 2, characterized in that: The bottom end of the push rod (9) is provided with a ramp surface.

9. The sealing structure for connecting steel sheet piles according to claim 2, wherein: The top cross-section of the push rod (9) is L-shaped.

10. A sealing structure for steel sheet pile connection according to claim 2, characterized in that: A limiting block (31) is fixedly connected to the side surface of the top end of the push rod (9).

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