A puller for a bell and spigot joint and method

Abstract

The application discloses a kind of isolation box pulling device and method for socket joint, including isolation box, pulling device, wear pole and the method used thereof;Isolation box is temporarily cut off to ground wall by its specific structure to facilitate trench construction;Pulling device is used with isolation box to pull out the role of isolation box;Isolation box needs to be temporarily placed during pulling out, wear pole can temporarily place isolation box on guide wall.The device and method effectively reduce the influence of slot section construction on adjacent slot section;Through the unique structure of isolation box itself, it also provides support for rigid joint, improving the pouring quality of rigid joint;With the assistance of pulling device, the pulling out of isolation box becomes simple and efficient;The use of wear pole makes the temporary placement of isolation box convenient and fast, ensuring the stability of temporary placement;The isolation box pulling device and method for socket joint effectively improve the construction efficiency and quality.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of underground continuous wall construction, and particularly relates to a socket joint isolation box pulling device and method. BACKGROUND

[0002] In the process of urban underground space construction, underground continuous walls are generally used as the retaining structure of foundation pits. With the increasing depth of buildings, the requirements for retaining structures are becoming higher and higher. The traditional flexible joint underground continuous wall cannot meet the structural stress requirements. The type of underground continuous wall joint gradually develops from flexible joint to rigid joint. The rigid joint slot section and the reinforcement cage slot section need to be separately formed. In order to reduce the influence of the second-stage slot section forming operation on the adjacent first-stage slot section, improve the pouring quality of the rigid joint, and improve the quality of the retaining structure, measures for isolating the slot section and improving the support of the rigid joint are involved. For temporary isolation of the slot section, the isolation device should be easy to install and disassemble. Therefore, a kind of isolation device that is easy to connect and disassemble is needed. In order to adapt to slot sections of different depths, the isolation device itself needs to adopt flexible connection technology, that is, the isolation box of the entire slot section is connected by a certain number of standard length isolation boxes. The number of isolation boxes is determined according to the depth of the slot section. A specific method is needed to improve the isolation efficiency during the entire isolation process. Certain auxiliary devices are used to speed up the construction of the isolation process and reduce the possibility of accidents during the isolation process. Therefore, a device and method for temporary isolation of the underground continuous wall slot section are needed to improve the engineering quality and construction speed. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a socket joint isolation box pulling device and method, which effectively reduces the influence of slot section construction on adjacent slot sections. Through the unique structure of the isolation box, support is provided for the rigid joint, improving the pouring quality of the rigid joint. With the assistance of the pulling device, the isolation box is easily and efficiently pulled out. The use of the rod makes the temporary storage of the isolation box convenient and fast, ensuring the stability of the temporary storage. The socket joint isolation box pulling device and method effectively improve the construction efficiency and quality.

[0004] To solve the above technical problems, the technical solution adopted by the present application is:

[0005] The utility model provides a kind of isolation box pulling device of socket joint, including isolation box, and isolation box includes isolation board, and one side of isolation board is connected with two support structures, and the both ends of support structure are opened as socket and are inserted with plug joint cooperation;Pulling device includes clamping plate structure, and clamping plate structure is connected with hydraulic jack on both sides, and hydraulic jack is connected with control center by conduit;Support structure surface is provided with multiple through bar holes and is inserted with bar plug, and bar is connected with base;Support structure surface is provided with shaft hole, and support structure is inserted with shaft sleeve and pin in shaft hole and is inserted with clamping plate structure or plug.

[0006] Further, the isolation box has two types of long and short, used for adjusting the layout of lengthening.

[0007] Preferably, the support structure is a hollow structure surrounded by three steel plates; two larger connecting pin hole and six smaller through bar hole are opened on the steel plates on both sides of the support structure; and the steel plate at the pin hole for connection is thickened.

[0008] Preferably, the plug is connected with the support structure, and the plug is inserted into the hollow interior of the support structure; two pin hole are opened on the side surface of one end of the plug and matched with the pin hole of the support structure.

[0009] Preferably, the clamping plate structure includes a top plate, the bottom surface of the top plate is connected with the hydraulic jack on both sides; the outer clamping plate is connected with the top plate on both sides below; the outer clamping plate has two larger rib plates and one small rib plate; a plurality of shaft hole are opened on the surface of the outer clamping plate and matched with the pin hole on the surface of the support structure; the clamping plate structure has a main clamping plate in the middle, which is composed of two wing plates on the left and right and three connecting plates in front and back; the shaft hole are opened on the wing plates and the connecting plates and matched with the support structure of the isolation box through the insertion of the pin.

[0010] Preferably, the control center includes a control panel and a motor; the hydraulic jack is connected to the control center.

[0011] Further, the isolation box adopts a socket structure and is connected through a shaft sleeve; the shaft sleeve is fixed on the shaft hole of the support structure of the isolation box through a nut.

[0012] Preferably, the bar is a cylindrical rod, and the end of the cylindrical rod has a chamfer.

[0013] Preferably, the base has two plate structures, and the four vertical plates are connected between the two plate structures; the end of the four vertical plates is attached to a vertical plate with an arcuate hole and flush with the upper and lower two plates.

[0014] Preferably, the method of the isolation box pulling device of socket joint includes the following steps:

[0015] S1, groove excavation of underground continuous wall is carried out through double-wheel milling, after groove excavation is completed, rigid joint is lowered, bottom sealing concrete is poured, and after initial setting of bottom sealing concrete, isolation box is lowered.

[0016] S2, the isolation box is lifted and lowered by the crane, after the first section of the isolation box is lowered, the crossbar is temporarily placed on the guide wall by passing through the crossbar hole on the support plate of the isolation box;

[0017] S3, the second section of the isolation box is lifted by the crane, after the tail plug of the second section of the isolation box is aligned with the socket at the head of the first section of the isolation box by manual assistance, it is slowly lowered to the shaft hole of the second section of the isolation box plug, which is coaxial with the shaft hole on the support plate of the first section of the isolation box, then it is inserted into the shaft sleeve and fixed on the support plate with a nut, the connection of the first section of the isolation box and the second section of the isolation box is completed;

[0018] S4, the isolation box is slightly lifted, after the crossbar hole is pulled out, the two connected sections of the isolation box are continuously lowered, after the lowering is completed, the crossbar is inserted for temporary placement;

[0019] S5, steps S2-S4 are repeated until the lowering of all the isolation boxes is completed; the support plate of the isolation box should be against the shear pin of the rigid joint to provide support for the rigid joint; the isolation plate should be perpendicular to the slot section to temporarily isolate the slot section;

[0020] S6, the concrete of the rigid joint is poured, and the adjacent slot sections are constructed in a slot;

[0021] S7, after the construction of the adjacent slot sections in a slot is completed, the lifting device is placed above the isolation box to prepare for lifting the isolation box, and the lifting tool of the crane is connected with the isolation box;

[0022] S8, the shaft hole on the clamping plate structure of the lifting device is adjusted to be coaxial with the shaft hole on the support structure of the isolation box, and the shaft sleeve is inserted for temporary connection; the hydraulic jack is controlled by the control center to be synchronously jacked up, the crossbar is inserted into the crossbar hole of the support plate for temporary placement after being jacked up to an appropriate distance;

[0023] S9, the shaft sleeve between the clamping plate structure and the support structure is removed, and the hydraulic jack is reset;

[0024] S10, steps S8-S9 are repeated until a certain distance is pulled out, then the crane completely pulls out a section of the isolation box, the nut and the shaft sleeve connecting the two isolation boxes are removed, and the crane lifts the isolation box away for storage; the crane is connected with the next section of the isolation box;

[0025] S11, step S10 is repeated until all the isolation boxes are pulled out and lifted away for storage.

[0026] Further, the diameter of the shaft hole is 150mm, the diameter of the crossbar hole is 100mm, and the width of the steel plates on both sides of the support structure should ensure that the support structure can support the shear pin of the rigid joint to provide support for the rigid joint.

[0027] Preferably, the plug is connected with the support structure, the plug is located in the hollow structure in the support structure, and the extended part has two pin shaft holes.

[0028] Further, the distance between the plug pin shaft hole and the tail of the support structure should be equal to or slightly greater than the distance between the support structure pin shaft hole and the head of the support structure.

[0029] Preferably, the left and right sides of the clamping plate structure are outer clamping plates, the outer clamping plates have two large rib plates and one small rib plate on the outer side, and the outer clamping plates have six thickened shaft holes; the middle of the clamping plate structure is a main clamping plate which is composed of left and right wing plates and front and rear three connecting plates, and the wing plates and the connecting plates are provided with shaft holes.

[0030] Further, the distance between the left and right outer clamping plates and the main clamping plate should be greater than the width of the support structure of the isolation box, the width of the main clamping plate should be less than the distance between the two support plates of the isolation box, and the distance between the shaft holes of the clamping plate structure should be consistent with the distance between the pin shaft holes on the support structure of the isolation box.

[0031] Preferably, the control center is composed of a control panel and a motor, provides power for the pulling device and ensures the synchronous jacking of the hydraulic jack, and avoids the tilting of the isolation box during the pulling process.

[0032] Preferably, the two isolation boxes are connected through the shaft sleeve in a socket and spigot type.

[0033] Further, the shaft sleeve is fixedly connected with the support plates of the isolation box through threads.

[0034] Preferably, the penetrating rod is composed of a penetrating rod and a base, the diameter of the penetrating rod is 90mm, and the penetrating rod is fixed on the base.

[0035] Further, the penetrating rod passes through the arc-shaped hole of the base and extends a distance for perforation, the front end of the penetrating rod is chamfered, which is beneficial to the insertion of the penetrating rod into the hole, and the flat plate below the base, the two vertical plates in the middle and the plate with the arc-shaped hole are in contact with and fixed with the penetrating rod.

[0036] The beneficial effects of the patent are as follows:

[0037] 1. The isolation box adopts a socket and spigot type lengthening mode, the number of lengthening of the isolation box is determined according to the depth of the groove section, and the isolation box can be repeatedly used in multiple projects. The temporary isolation of the groove section by the isolation box greatly improves the influence of the trenching operation on the adjacent already-trenched section. The unique structure of the isolation box can not only isolate the groove section, but also provide support for the rigid joint and improve the pouring quality of the rigid joint.

[0038] 2, the pulling device provides a strong guarantee for the pulling out of the isolation box. In the process of pulling out the isolation box, the first pulling is the most difficult, and the pulling device bears the function of pulling the isolation box away from the original position. The possibility of box jamming and wire rope breaking derived from direct pulling out by crane is avoided, the requirement for crane is reduced, and the safety factor of the pulling out process is greatly improved. When the crane pulling out process encounters difficulty, the pulling device can clamp the isolation box and use the hydraulic jack to assist the pulling out.

[0039] 3, the wearing rod solves the problem of temporary placement of the isolation box on the guide wall. The reasonable structure of the wearing rod is the guarantee for safe and stable placement of the isolation box, and is the fundamental for quickly completing the placement.

[0040] 4, the reasonable isolation box lowering and pulling out method makes the lowering and pulling out of the isolation box more logical, improves the construction efficiency, and reduces the possibility of errors. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a schematic diagram of the overall structure of the isolation box;

[0042] Figure 2 is a front view of the isolation box;

[0043] Figure 3 is a side view of the isolation box;

[0044] Figure 4 is a top view of the isolation box;

[0045] Figure 5 is a schematic diagram of the connection between the isolation boxes;

[0046] Figure 6 is a schematic diagram of the clamping plate structure and jack of the pulling device;

[0047] Figure 7 is a schematic diagram of the structure of the wearing rod and base;

[0048] Figure 8 is a schematic diagram of the isolation box when pulled out;

[0049] In the drawings, the reference signs are: isolation plate 1, support structure 2, plug 3, clamping plate structure 4, outer clamping plate 41, main clamping plate 42, jack 5, guide wall 6, shaft sleeve 8, wearing rod 9, base 10. DETAILED DESCRIPTION

[0050] Example 1:

[0051] As Figures 1-8As shown, a socket joint isolation box pulling device includes an isolation box, which includes an isolation plate 1 connected to two support structures 2 on one side, and the support structures 2 have openings at both ends as sockets for plug-in cooperation with a plug 3; the pulling device includes a clamping plate structure 4, both sides of which are connected to hydraulic jacks 5, which are connected to a control center through a conduit; the support structure 2 is provided with a plurality of through-bar holes on the surface for plug-in cooperation with a through-bar 9, and the through-bar 9 is connected to a base 10; the support structure 2 is provided with an axle hole, and the support structure 2 is inserted into the axle sleeve 8 and the pin shaft for plug-in cooperation with the clamping plate structure 4 or the plug 3.

[0052] Further, the isolation box has two types of long and short models for adjusting the length of the layout; the long isolation box is 11.5 meters, and the short joint box is 3.5 meters; the length of the joint box is adjusted according to the depth of the groove.

[0053] Preferably, the support structure 2 is a hollow structure surrounded by three steel plates; two larger connecting pin shaft holes and six smaller through-bar holes are formed in the steel plates on both sides of the support structure 2; and the steel plates at the pin shaft holes for connection are thickened.

[0054] Preferably, the plug 3 is connected to the support structure 2, and the plug 3 is inserted into the hollow interior of the support structure 2; two pin shaft holes are formed in the end surface of the plug 3 for cooperation with the pin shaft holes of the support structure 2.

[0055] Preferably, the clamping plate structure 4 includes a top plate connected to the jacks 5 on both sides of the bottom surface; two larger rib plates and one small rib plate are connected to the outer clamping plate below the top plate, and a plurality of axle holes are formed in the surface of the outer clamping plate for cooperation with the pin shaft holes on the surface of the support structure 2; the clamping plate structure 4 includes a main clamping plate composed of two wing plates on the left and right and three connecting plates in front and back; axle holes are formed in the wing plates and the connecting plates for plug-in cooperation with the support structure 2 of the isolation box through the pin.

[0056] Preferably, the control center includes a control panel and a motor; the hydraulic jacks 5 are connected to the control center.

[0057] Further, the isolation boxes are connected by a socket structure through the axle sleeve 8; the axle sleeve 8 is fixed to the axle hole of the support structure 2 of the isolation box through a nut.

[0058] Preferably, the through-bar 9 is a cylindrical bar with a chamfer at one end.

[0059] Preferably, the base 10 is a structure composed of two plates, and the four vertical plates are connected between the two plates; the end of the four vertical plates is attached to a vertical plate with an arched hole and is flush with the upper and lower plates.

[0060] Example 2:

[0061] Preferably, the method for pulling out the isolation box of the bell and spigot joint comprises the following steps:

[0062] S1, groove excavation of the underground continuous wall is performed by a double-wheel mill, after the groove excavation is completed, the rigid joint is lowered, the bottom sealing concrete is poured, and after the bottom sealing concrete is initially cured, the isolation box is lowered;

[0063] S2, the isolation box is lowered by a crane, after the first section of the isolation box is lowered, a cross rod is temporarily placed on the guide wall by passing through the cross rod hole on the support plate of the isolation box;

[0064] S3, the second section of the isolation box is hoisted by the crane, after the tail plug 3 of the second section of the isolation box is slowly lowered to the coaxial center of the shaft hole of the head plug 3 of the first section of the isolation box and the shaft hole on the support plate, the shaft sleeve 8 is inserted and fixed on the support plate by a nut, and the connection between the first section of the isolation box and the second section of the isolation box is completed;

[0065] S4, the isolation box is slightly hoisted, after the cross rod hole is pulled out, the two connected sections of the isolation box are continuously lowered, and after the lowering is completed, the cross rod 9 is inserted for temporary placement;

[0066] S5, steps S2 to S4 are repeated until the lowering of all the isolation boxes is completed; the support plate of the isolation box should be against the shear pin of the rigid joint to provide support for the rigid joint; the isolation plate 1 should be perpendicular to the groove section to temporarily isolate the groove section;

[0067] S6, the rigid joint concrete is poured, and the adjacent groove sections are constructed;

[0068] S7, after the construction of the adjacent groove sections is completed, the pulling-out device is placed above the isolation box to prepare for pulling out the isolation box, and the lifting tool of the crane is connected with the isolation box;

[0069] S8, the shaft hole on the clamping plate structure 4 of the pulling-out device is adjusted to be coaxial with the shaft hole on the support structure 2 of the isolation box, the shaft sleeve 8 is inserted for temporary connection; the hydraulic jack 5 is controlled by the control center to be synchronously jacked up, the cross rod is inserted into the cross rod hole of the support plate for temporary placement after being jacked up to an appropriate distance;

[0070] S9, the shaft sleeve 8 between the clamping plate structure 4 and the support structure 2 is removed, and the hydraulic jack 5 is reset;

[0071] S10, steps S8 to S9 are repeated until a certain distance is pulled out, then the crane pulls out one section of the isolation box completely, the nut and the shaft sleeve 8 connecting the two sections of the isolation box are removed, and the crane hoists the isolation box away for storage; the crane is connected with the next section of the isolation box;

[0072] S11, step S10 is repeated until all the isolation boxes are pulled out and hoisted away for storage.

[0073] Embodiment 3:

[0074] Further, the shaft hole diameter is 150mm, the hole diameter of the through rod is 100mm, and the width of the steel plate on both sides of the support structure 2 should ensure that the support structure 2 can resist the shear pin of the rigid joint to provide support for the rigid joint.

[0075] Preferably, the plug 3 is connected with the support structure 2, and the plug 3 is located in the hollow structure inside the support structure 2, and the protruding part has two pin hole.

[0076] Further, the distance between the pin hole of the plug 3 and the tail of the support structure 2 should be equal to or slightly greater than the distance between the pin hole of the support structure 2 and the head of the support structure 2.

[0077] Preferably, the clamping plate structure 4 has two outer clamping plates on the left and right sides, and the outer clamping plate has two large rib plates and one small rib plate on the outer side, and the outer clamping plate has six thickened shaft holes, and the clamping plate structure 4 has a main clamping plate in the middle, which is composed of two wing plates and three connecting plates in front and back, and the wing plate and the connecting plate are provided with shaft holes.

[0078] Further, the distance between the left and right outer clamping plates and the main clamping plate should be greater than the width of the support structure 2 of the isolation box, the width of the main clamping plate should be less than the distance between the two support plates of the isolation box, and the distance between the shaft holes of the clamping plate structure 4 should be consistent with the distance between the pin holes on the support structure 2 of the isolation box.

[0079] Preferably, the control center is composed of a control panel and a motor, which provides power for the lifting device and ensures the synchronous lifting of the hydraulic jack 5, so as to avoid the tilting of the lifting process and cause the clamping box.

[0080] Preferably, the two isolation boxes are connected by the shaft sleeve 8 in a socket type.

[0081] Further, the shaft sleeve 8 is fixedly connected with the support plate of the isolation box by screwing.

[0082] Preferably, the through rod is composed of a through rod 9 and a base 10, the diameter of the through rod 9 is 90mm, and the through rod 9 is fixed on the base 10.

[0083] Further, the through rod 9 passes through the arched hole of the base 10 and extends a distance for perforation, the front end of the through rod 9 has a chamfer, which is beneficial to the insertion of the through rod 9 into the hole, and the plate below the base 10 and the two vertical plates in the middle and the plate with the arched hole are in contact with the through rod 9 and fixed.

[0084] The above-mentioned embodiments are merely preferred technical solutions of the present application, and should not be regarded as limitations on the present application. The embodiments in the present application and the features in the embodiments can be combined with each other as long as there is no conflict. The protection scope of the present application should be subject to the technical solutions recited in the claims, and include equivalent replacement solutions of the technical features recited in the claims. That is, equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A socket-type connector isolation box lifting device, characterized in that: The device includes an isolation box, which includes an isolation plate (1). One side of the isolation plate (1) is connected to two support structures (2). The support structures (2) have openings at both ends as sockets for insertion and connection with plugs (3). The lifting device includes a clamping plate structure (4). Multiple hydraulic jacks (5) are connected to both sides of the clamping plate structure (4). The hydraulic jacks (5) are connected to the control center through conduits. Multiple through holes are provided on the surface of the support structure (2) for insertion and connection with through rods (9). Through rods (9) are connected to the base (10). A shaft hole is provided on the surface of the support structure (2). The support structure (2) is connected to the clamping plate structure (4) or plugs (3) through the shaft hole by inserting a bushing (8) and a pin. The support structure (2) is a hollow structure formed by three steel plates; multiple connecting pin holes and multiple through-bar holes are opened on the steel plates on both sides of the support structure (2); the plug (3) is connected to the support structure (2), and the plug (3) is inserted into the hollow interior of the support structure (2), and two pin holes are opened on one side surface of the plug (3) to cooperate with the pin holes of the support structure (2); the clamping plate structure (4) includes a top plate, and the bottom surface of the top plate is connected to the hydraulic jack (5) on both sides; the bottom sides of the top plate are connected to the outer clamping plates (4) on both sides. 1) The outer card plate (41) has multiple shaft holes on its surface that are connected to the pin holes on the surface of the support structure (2); the card plate structure (4) has a main card plate (42) in the middle, which is composed of two wing plates on the left and right and three connecting plates in front and behind. The wing plates and connecting plates are provided with shaft holes and are connected to the support structure (2) of the isolation box by a pin. The isolation boxes adopt a socket structure and are connected by bushings (8); the bushings (8) are fixed to the shaft holes of the support structure (2) of the isolation box by nuts.

2. The isolation box lifting device for a socket-type joint according to claim 1, characterized in that: The control center includes a control panel and a motor; a hydraulic jack (5) is connected to the control center.

3. The isolation box lifting device for a socket-type joint according to claim 1, characterized in that: The through rod (9) is a cylindrical rod with a chamfer at one end.

4. A method for lifting and removing an isolation box of a socket-type joint according to any one of claims 1 to 3, characterized in that: Includes the following steps: S1, the groove of the underground continuous wall is excavated by a double wheel milling machine. After the groove is excavated, the rigid joint is lowered and the bottom sealing concrete is poured. After the bottom sealing concrete has initially set, the isolation box is lowered. S2, the isolation box is hoisted and lowered by a crane. After the first isolation box is lowered, it is temporarily placed on the guide wall by passing through the through-bar holes on the isolation box support structure (2) with a through-bar. S3, the crane lifts the second isolation box. After the tail plug (3) of the second isolation box is manually aligned with the socket of the head of the first isolation box, it is slowly lowered to the shaft hole of the second isolation box plug (3) and the shaft hole on the support structure (2) of the first isolation box are coaxial. Then, the bushing (8) is inserted and fixed on the support structure (2) with a nut to complete the connection between the first isolation box and the second isolation box. S4, slightly lift the isolation box, pull out the through-bar hole, and continue to lower the two connected isolation boxes. After the lowering is completed, insert the through-bar for temporary placement. S5, repeat steps S2~S4 until all isolation boxes are lowered; the support structure (2) of the isolation box supports the rigid joint with shear nails to provide support for the rigid joint; the isolation plate (1) is perpendicular to the groove section and serves as a temporary isolation groove section; S6, rigid joint concrete pouring, adjacent trench section trenching construction; S7, After the trenching of adjacent sections is completed, the lifting device is placed above the isolation box to prepare for lifting the isolation box, and the lifting device of the crane is connected to the isolation box; S8, adjust the shaft hole on the clamping plate structure (4) of the lifting device to be coaxial with the shaft hole on the isolation box support structure (2), insert the bushing (8) for temporary connection; control the hydraulic jack (5) to lift synchronously through the control center (7), and after lifting to a suitable distance, insert the through bar into the through bar hole of the support structure (2) for temporary placement; S9, remove the bushing between the card plate structure (4) and the support structure (2), and control the hydraulic jack (5) to reset; S10, repeat steps S8~S9 until a certain distance is pulled out. Then the crane will completely pull out one isolation box, remove the nuts and bushings connecting the two isolation boxes, and the crane will lift the isolation box away for storage; the crane will then connect to the next isolation box. S11. Repeat step S10 until all isolation boxes have been removed, lifted, and stored.

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