Recyclable reinforcement cage hoisting device

Abstract

The utility model discloses a recyclable reinforcement cage hoisting device, which comprises four hoisting rods, a plurality of hoisting rods and a plurality of hoisting rods, the peripheral side or the end part of the lifting appliance can be folded, the folded part is inwards provided with four slots from the edge, one end, far away from the edge of the lifting appliance, of each slot is provided with a first lifting hole, and the lifting rods can be inserted into the slots and the first lifting holes in a matched manner; the first connecting piece is detachably arranged above or below the first lifting hole and is used for fixing the lifting rod by the lifting appliance; the two carrying pole beams can be arranged above the pile hole in a matched mode, two second lifting holes are formed in the carrying pole beams in a penetrating mode, and the lifting rods can penetrate through the second lifting holes in a matched mode; the second connecting piece is detachably arranged above or below the first lifting hole and is used for fixing the lifting rod by the carrying pole beam; the upper part of the third connecting piece is connected with the suspender, and the lower part is detachably connected with a main reinforcement of the reinforcement cage. The device is applied to the lowering process of the reinforcement cage in pile foundation construction and can be reused, and waste of materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation construction, in particular to a recyclable steel reinforcement cage hoisting device. Background Art

[0002] During the pile foundation construction process, the positioning of the steel reinforcement cage is mainly achieved through suspension bars. Generally, the positioning requirement is that the steel reinforcement cage is suspended 10 cm above the bottom of the hole, and the steel reinforcement cage is kept in a suspended and centered state. The conventional suspension bars are composed of ordinary threaded steel and round steel. At the top, the round steel is bent into a circle and welded to the upper end of the threaded steel, and the lower end of the threaded steel is welded to the main bars of the steel reinforcement cage.

[0003] The above-mentioned traditional suspension bars cannot be recycled, resulting in waste of materials. In addition, since the threaded steel is welded to the welded round steel and the main bars of the steel reinforcement cage, the length of the suspension bar cannot be precisely adjusted during the lowering process, resulting in uneven stress on the steel reinforcement cage, inability to ensure vertical lowering, and difficulty in controlling the distance from the bottom of the hole. There is often a phenomenon that the top of the suspension bar is not stressed while the bottom of the steel reinforcement cage has reached the bottom, so the construction quality cannot be guaranteed.

[0004] In view of the above problems, it is very necessary to research a new steel reinforcement cage hoisting device. Content of the Utility Model

[0005] The utility model discloses a recyclable steel reinforcement cage hoisting device, which can be reused and reduce waste of materials.

[0006] To achieve the above object, the technical solution of the utility model is as follows:

[0007] A recyclable steel reinforcement cage hoisting device, comprising:

[0008] Hanging rods, including four of them;

[0009] A lifting tool, the circumference or end of which can be folded to reduce its length or diameter. Four slots are arranged from the edge inward in the folded part. A first hanging hole is arranged at one end of the slot far from the edge of the lifting tool. The slot and the first hanging hole can be inserted into the hanging rod in a matching manner. When in the unfolded state, among the four first hanging holes, every two first hanging holes on the opposite sides are connected. The connecting lines intersect and are perpendicular to each other, and the distance from each first hanging hole to the intersection point is equal;

[0010] A first connecting piece, which is detachably arranged above or below the first hanging hole for fixing the lifting tool to the hanging rod;

[0011] A crossbeam, including two of them, which can be arranged above the pile hole in a matching manner and is provided with two second hanging holes. The second hanging holes can pass through the hanging rods in a matching manner, and the distance between the two second hanging holes matches the distance between the adjacent first hanging holes;

[0012] A second connecting member, which is detachably arranged above or below the second lifting hole and is used to fix the hanging rod to the crossbeam.

[0013] A third connecting member, whose upper part is connected to the hanging rod and whose lower part is detachably connected to the main reinforcement bars of the steel reinforcement cage.

[0014] Preferably, a support mechanism is further included, and the support mechanisms are respectively arranged below both ends of the crossbeam.

[0015] Preferably, an external thread is arranged at the lower end of the hanging rod, an internal thread matching the external thread at the lower end of the hanging rod is arranged at the upper end of the third connecting member, and an internal thread matching the thread of the main reinforcement bars of the steel reinforcement cage is arranged at the lower end.

[0016] Preferably, the lifting tool includes two rod-shaped lifting members, the middle parts of the two rod-shaped lifting members are vertically connected, and one slot and one first lifting hole are respectively arranged at both ends of each lifting member.

[0017] More preferably, a lifting member pin hole is arranged on the side wall, upper surface or lower surface of the rod-shaped lifting member, and a detachable hanging rod fixing pin is arranged in a matching manner. When the hanging rod fixing pin is inserted, it can be fixed on one side of the first lifting hole close to the slot.

[0018] More preferably, the rod-shaped lifting member includes a lifting member main body part and a lifting member folding part. Both ends of the lifting member main body part are respectively connected to the lifting member folding part through articulated connecting rods, and the lifting member main body part and the lifting member folding part can be fixed together by a lifting fixing member to form a straight rod shape.

[0019] More preferably, the lifting fixing member is a folding fixing pin arranged in a matching manner at both ends of the lifting member main body part and one end of the lifting member folding part close to the lifting member main body part.

[0020] More preferably, the folding fixing pin includes a pin tongue, a pin socket and a pin shaft. The pin tongue is hinged to the lifting member main body part or the lifting member folding part, a pin socket is correspondingly arranged on the lifting member folding part or the lifting member main body part, and the pin shaft can be inserted into the pin socket and the pin tongue in a matching manner to fix the lifting member main body part and the lifting member folding part together to form a straight rod shape.

[0021] Preferably, the lifting tool includes a disc-shaped lifting member, and four slots and four first lifting holes are arranged on the circumferential side of the disc-shaped lifting member from the edge inwards.

[0022] Preferably, the hanging rod is a deformed steel bar, the first connecting member is a first nut and / or a first anchor fitting that can be screwed onto the deformed steel bar in a matching manner, and the second connecting member is a second nut and / or a second anchor fitting that can be screwed onto the deformed steel bar in a matching manner.

[0023] The reusable steel reinforcement cage hoisting device described above, when in use, specifically includes the following steps: (1) Connecting the suspender and the lifting tool: On the ground, insert the four suspenders into different slots of the lifting tool and into the first lifting hole respectively, anchor them on the lifting tool through the first connecting piece, and the side of the first lifting hole can be closed by combining with the suspender fixing pin to prevent the suspender from slipping out of the slot. Fix the steel wire rope on the lifting tool, keep the center of gravity at the center of the lifting tool, and lift the suspender and the lifting tool together with the hoisting equipment. (2) Connecting the suspender and the steel reinforcement cage: The suspender is connected to the main reinforcement of the steel reinforcement cage through the third connecting piece. Setting the third connecting piece facilitates the separation of the suspender from the main reinforcement of the steel reinforcement cage. (3) Connecting the suspender and the crossbeam: After the lifting tool, the suspender and the steel reinforcement cage are simultaneously lowered to the designed position at the bottom of the hole by the hoisting equipment. At this time, the hoisting equipment remains stationary. Vertically sleeve the crossbeam onto two adjacent suspenders from top to bottom. Support mechanisms can be padded on both sides of the crossbeam, and then install the second connecting piece to fix the suspender through the crossbeam. (4) Removing the lifting tool: After the suspender and the crossbeam are fixed, the first connecting piece can be loosened, the lifting tool is lowered, the suspender fixing pin at the end of the slot is removed, and the periphery or the end is folded and hoisted out of the pile hole. (5) Recycling the removal of the suspender: After the concrete in the pile foundation is poured, the buoyancy and upward movement of the concrete on the steel reinforcement cage will cause the suspender to lose tension. At this time, the first connecting piece on the crossbeam can be loosened, and at the same time, observe whether there is subsidence. After there is no subsidence, remove the first connecting piece, then remove the crossbeam, and then separate the suspender, the third connecting piece from the main reinforcement of the steel reinforcement cage, take out the suspender and the third connecting piece, and recycle the steel reinforcement cage hoisting device to the next construction position of the steel reinforcement cage for use.

[0024] The utility model has the following advantages:

[0025] (1) Since the third connecting piece can be separated from the main reinforcement of the steel reinforcement cage, all components in the utility model can be reused, reducing material waste and the time for workers to process the hanger bars, and effectively reducing the construction cost.

[0026] (2) Compared with the conventional method of bending round steel into a circle, there may be problems such as unevenness or non-roundness during the bending process, resulting in uneven stress on the steel reinforcement cage. During the lowering process, the steel reinforcement cage will tilt, ultimately causing problems such as the inconsistency between the center point of the pile foundation and the center point of the steel reinforcement cage, and the lack of the steel reinforcement cage protection layer. In addition, there may be a situation where part of the steel reinforcement cage reaches the bottom and cannot maintain a 10-cm suspended distance, thereby forming a corrosion channel and affecting the construction quality. The utility model adopts a straight rod-shaped or disc-shaped lifting tool. During the production process, it only needs to be kept flat once, and during subsequent use, the stress on the steel reinforcement cage during the hoisting and lowering process can be made uniform, ensuring the vertical lowering of the steel reinforcement cage. Combining with the control of the suspender length, the suspended height at the bottom of the steel reinforcement cage can be accurately controlled to ensure the quality of the pile foundation.

[0027] (3)The utility model is convenient to install and simple to operate, and is suitable for popularization in the construction of pile cage of pile foundation. Brief Description of the Drawings

[0028] Figure 1 It is a top view structural schematic diagram of one use state of an embodiment of the utility model (the spreader is not folded).

[0029] Figure 2 For Figure 1 The top view structural schematic diagram of the spreader in the use state (the spreader is not folded).

[0030] Figure 3 It is a top view structural schematic diagram of another use state of an embodiment of the utility model (the spreader is folded).

[0031] Figure 4 It is Figure 1 The schematic cross-sectional view of A-A of

[0032] Figure 5 It is Figure 1 The enlarged structural schematic diagram of the rod-shaped lifting member in (not folded).

[0033] Figure 6 It is Figure 5 The front view structural schematic diagram of

[0034] Figure 7 It is Figure 6 The structural schematic diagram of the folding of the rod-shaped lifting member under the view.

[0035] In the figure, there are spreader 100, rod-shaped lifting member 110, main body part 111 of the lifting member, folding part 112 of the lifting member, first lifting hole 120, slot 130, articulated connecting rod 140, hanger fixing pin 150, folding fixing pin 160, pin tongue 161, pin socket 162, pin shaft 163, crossbeam 200, hanger rod 300, second connecting member 400, steel casing 500, support mechanism 600, first connecting member 700, steel wire rope 800, third connecting member 900, main reinforcement 1000 of the reinforcement cage. Detailed Embodiment

[0036] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without making creative efforts belong to the scope of protection of the utility model.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0038] In this application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] A recyclable steel reinforcement cage hoisting device, such as Figures 1-4As shown in the figure, it includes a suspension rod, a spreader 100, a first connecting member 700, a balance beam 200, a second connecting member 400, and a third connecting member 900, where: The suspension rod 300, of which there are four, is used to connect with the steel reinforcement cage. Generally, it is correspondingly connected to four main steel bars 1000 of the steel reinforcement cage. Among the four selected main steel bars 1000 of the steel reinforcement cage, the two on the opposite sides are connected through the center of the cross-section of the steel reinforcement cage, and the connecting lines are perpendicular to each other. The spreader 100, the circumference or end of which can be folded to make its length or diameter smaller. Four slots 130 are arranged inward from the edge of the folded part. A first hanging hole 120 is arranged at one end of the slot 130 far from the edge of the spreader 100. The slot 130 and the first hanging hole 120 can be inserted into the suspension rod 300 in a matching manner, that is, the suspension rod 300 can be inserted into the first hanging hole 120 through the slot 130 from the circumference or end of the spreader 100. When the spreader 100 is in the unfolded state, among the four first hanging holes 120, every two first hanging holes 120 on the opposite sides are connected. The connecting lines intersect and are perpendicular to each other, and the distance from each first hanging hole 120 to the intersection point is equal. The distance of the first hanging hole 120, that is, the distance to be matched with the main steel bar 1000 of the steel reinforcement cage to which the suspension rod 300 is to be connected, ensures that the spreader 100 can provide accurate positioning for the suspension rod 300, so that the suspension rod 300 and the main steel bar 1000 of the steel reinforcement cage can be in a straight line during hoisting; the diameter or length of the spreader 100 in the unfolded state should be less than the inner diameter of the steel casing 500 installed at the top of the pile hole; in addition, it is worth noting that the connecting lines of the above-mentioned first hanging holes 120 do not mean that there are connecting lines connecting the first hanging holes 120, but only the connecting lines assumed for accurately describing their positions. The first connecting member 700 is detachably arranged above or below the first hanging hole 120 and is used to fix the suspension rod 300 by the spreader 100. The balance beam 200, of which there are two, can be arranged above the pile hole in a matching manner. The length of the balance beam 200 is preferably greater than or equal to the diameter of the pile hole to facilitate being placed above the pile hole; each balance beam 200 is provided with two second hanging holes, and the second hanging holes can be inserted into the suspension rod 300 in a matching manner. The distance between the two second hanging holes is matched with the distance between the adjacent first hanging holes 120. Each balance beam 200 can fix two of the suspension rods 300 in a matching manner, that is, the two balance beams 200 can fix the four suspension rods 300. There is a certain distance between the two balance beams 200 during installation. After the spreader 100 is folded, it needs to satisfy being less than this distance to lift out the spreader 100. The second connecting member 400 is detachably arranged above or below the second hanging hole 120 and is used to fix the suspension rod 300 by the balance beam 200. The third connecting member 900, its upper part is connected to the suspension rod 300, and its lower part is used to be detachably connected to the main steel bar 1000 of the steel reinforcement cage. The setting of the third connecting member 900 facilitates the separation of the suspension rod 300 from the main steel bar 1000 of the steel reinforcement cage.Since the third connecting member 900 can be separated from the main reinforcement bars 1000 of the steel cage, each component in the present utility model can be reused, reducing material waste and the time for workers to process the suspension bars, and effectively reducing the construction cost.

[0040] The above reusable steel cage hoisting device, when in use, specifically includes the following steps: (1) Connecting the suspension rods 300 with the lifting appliance 100: On the ground, insert the four suspension rods 300 into different slots 130 of the lifting appliance 100 and enter the first lifting holes 120 respectively, and anchor them on the lifting appliance 100 through the first connecting member 700. It should be noted that it is necessary to calculate in advance the length of the suspension rods 300 placed below the lifting appliance 100 according to the depth of the pile hole and the length of the steel cage, and mark the length position of the suspension rods 300 exposed outside the pile hole when they are lowered. Then fix the steel wire ropes 800 on the lifting appliance 100, keep the center of gravity at the center of the lifting appliance 100, and lift the suspension rods 300 and the lifting appliance 100 together with a hoisting device. Among them, the hoisting device can adopt a truck crane. (2) Connecting the suspension rods 300 with the steel cage: The suspension rods 300 are connected with the main reinforcement bars 1000 of the steel cage through the third connecting member 900. (3) Connecting the suspension rods 300 with the balance beam 200: After the lifting appliance 100, the suspension rods 300 and the steel cage are simultaneously lowered to the designed position at the bottom of the hole by the hoisting device, at this time, the hoisting device remains stationary, vertically sleeve the balance beam 200 onto two adjacent suspension rods 300 from top to bottom, the balance beam 200 is horizontally clamped above the pile hole, and then install the second connecting member 400 to fix the suspension rods 300 through the balance beam 200, that is, in the state as shown in Figure 1 and 4 . (4) Removing the lifting appliance 100: After the suspension rods 300 and the balance beam 200 are fixed, the first connecting member 700 can be loosened, lower the lifting appliance 100, and fold the periphery or end of the lifting appliance 100, that is, in the state as shown in Figure 3 , and hoist it out of the pile hole. The steel cage is suspended by the balance beam 200. (5) Recycling the removal of the suspension rods 300: After the concrete in the pile foundation is poured, the buoyancy and upward movement of the concrete on the steel cage will cause the suspension rods 300 to lose tension. At this time, the first connecting member 700 on the balance beam 200 can be loosened, and at the same time, observe whether there is any sinking. After no sinking, remove the first connecting member 700, then remove the balance beam 200, and then separate the suspension rods 300, the third connecting member 900 from the main reinforcement bars 1000 of the steel cage, take out the suspension rods 300 and the third connecting member 900, and recycle the suspension rods 300, the lifting appliance 100 and the balance beam 200 to the next construction position of the steel cage for use.

[0041] Preferably, a support mechanism 600 is further included. The support mechanisms 600 are respectively arranged below both ends of the balance beam 200. The support mechanism 600 may include at least one wooden square. When there are multiple wooden squares, they are stacked upward to lift the balance beam 200 a certain distance from the pile hole to prevent pressing on the steel casing 500 and facilitate construction operations.

[0042] Preferably, this embodiment also provides a specific implementation manner of the third connecting member 900. The lower end of the suspension rod 300 is provided with an external thread. The third connecting member 900 is generally of a sleeve structure, with an internal thread at the upper end that matches the external thread at the lower end of the suspension rod 300, and an internal thread at the lower end that matches the thread of the main reinforcement bar 1000 of the steel reinforcement cage. Threaded connection facilitates disassembly during construction and replacement in case of damage.

[0043] Preferably, this embodiment also provides a specific implementation manner of the lifting appliance 100. The lifting appliance 100 includes two rod-shaped lifting members 110, which are vertically connected in the middle. One slot 130 and one first lifting hole 120 are respectively arranged at both ends of each lifting member. The two lifting members are the same in size, shape and material to maintain the overall balance of the lifting appliance 100 during lifting. When the two rod-shaped lifting members 110 are connected, one rod-shaped lifting member 110 can be located above and the other rod-shaped lifting member 110 can be vertically crossed below, or one of the rod-shaped lifting members 110 can be cut off in the middle and the other rod-shaped lifting member 110 can pass through. In this case, the overall length of the cut-off rod-shaped lifting member 110 needs to be added with the passing part of the other rod-shaped lifting member 110 to be equivalent to the length of the other rod-shaped lifting member 110. During lifting, both ends of the lifting steel wire rope 800 are respectively fixed on both sides of the middle of one of the rod-shaped lifting members 110. The rod-shaped lifting member 110 is preferably made of steel material, such as a square tube welded by steel plates, or the grooves of two

[20] channel steels face each other and are welded together. Using steel material can better prevent the lifting appliance 100 from deforming during lifting, thus better ensuring that the steel reinforcement cage can be vertically lowered. Compared with the conventional method of bending round steel into a circle, there may be problems such as unevenness or non-roundness during the bending process, resulting in uneven stress on the steel reinforcement cage. During the lowering process, the steel reinforcement cage will tilt, ultimately causing problems such as the inconsistency between the center point of the pile foundation and the center point of the steel reinforcement cage, and the lack of the steel reinforcement cage protection layer. In addition, it is also possible that part of the steel reinforcement cage reaches the bottom and cannot maintain a suspended distance of 10 cm, thus forming a corrosion channel and affecting the construction quality. The lifting appliance 100 of the present utility model is a straight rod shape. It only needs to be kept flat during one production process, and the stress on the steel reinforcement cage can be made uniform during the lifting and lowering process in subsequent use, ensuring the vertical lowering of the steel reinforcement cage. Combined with the control of the length of the suspension rod 300, the suspended height at the bottom of the steel reinforcement cage can be accurately controlled to ensure the quality of the pile foundation.

[0044] More preferably, this embodiment also provides a more specific implementation manner. A hoisting member pin hole is provided on the side wall, upper surface or lower surface of the rod-shaped hoisting member 110, and a detachable boom fixing pin 150 is correspondingly provided. When the boom fixing pin 150 is inserted, it can be fixed on the side of the first hoisting hole 120 close to the slot 130. That is, after the rod-shaped hoisting member 110 is inserted into the boom 300, the boom fixing pin 150 is inserted into the hoisting member pin hole, which can better prevent the boom 300 from slipping out of the slot 130.

[0045] More preferably, this embodiment also provides a more specific implementation manner. As shown in Figures 5-7 FIG. 5, the rod-shaped hoisting member 110 includes a hoisting member main body portion 111 and a hoisting member folding portion 112. The two ends of the hoisting member main body portion 111 are respectively connected to the hoisting member folding portion 112 through articulated connecting rods 140, and the hoisting member main body portion 111 and the hoisting member folding portion 112 can be fixed together by a hoisting fixing member to form a straight rod shape. The articulated connecting rod 140 can specifically be made by connecting two connecting rods together through a pin shaft. When the boom 300 is connected to the steel reinforcement cage, the rod-shaped hoisting member 110 remains in an unfolded state. At this time, the hoisting fixing member fixes the hoisting member main body portion 111 and the hoisting member folding portion 112 into a straight rod shape. After the balance beam 200 positions the boom 300, when folding the rod-shaped hoisting member 110, the fixing of the hoisting member main body portion 111 and the hoisting member folding portion 112 by the hoisting fixing member is released, and the hoisting member folding portion 112 is folded upward or downward, so as to reduce the length of the lifting tool 100 and lift it out of the space between the two balance beams 200 and lift it out of the pile hole.

[0046] More preferably, the hoisting fixing member can adopt a variety of existing structural forms. For the convenience of operation, this embodiment provides a specific hoisting fixing member. The hoisting fixing member is a folding fixing pin 160 that is correspondingly provided at both ends of the hoisting member main body portion 111 and at one end of the hoisting member folding portion 112 close to the hoisting member main body portion 111. It is a fixed pin type structure, and the fixing can be achieved by inserting the fixed pin, which is convenient and fast. More preferably, as shown in Figure 6 and Figure 7As shown in the figure, the folding fixing pin 160 includes a pin tongue 161, a socket 162 and a pin shaft 163. The pin tongue 161 is hinged to the main body part 111 or the folding part 112 of the lifting member. The socket 162 is correspondingly arranged on the folding part 112 or the main body part 111 of the lifting member. The pin shaft 163 can be inserted into the socket 162 and the pin tongue 161 to fix the main body part 111 and the folding part 112 of the lifting member together to form a straight rod shape. In use, both the pin tongue 161 and the socket 162 are provided with pin holes. The pin tongue 161 is rotated and extended into the socket 162, and the pin shaft 163 is inserted into the pin holes of the pin tongue 161 and the socket 162, so that the main body part 111 and the folding part 112 of the lifting member can be fixed together. In addition, matching limit pieces, such as nuts, caps, etc., can be arranged at both ends of the pin shaft 163 to prevent it from coming out of the pin tongue 161 and the socket 162. In this embodiment, the lifting fixing pieces are arranged in front of and behind the rod-shaped lifting member 110. According to needs, they can also be arranged above and below the rod-shaped lifting member 110.

[0047] Preferably, this embodiment also provides another specific implementation manner of the spreader 100. The spreader 100 includes a disc-shaped lifting member. Four slots 130 and four first lifting holes 120 are arranged on the circumferential side of the disc-shaped lifting member from the edge inward. The disc-shaped lifting member can be made of steel plate. The specific setting principle is similar to that of the rod-shaped lifting member 110. Mechanisms such as a boom fixing pin 150, a lifting fixing piece, and a hinged connecting rod 140 can also be arranged, and their structures are similar, so they will not be elaborated here one by one.

[0048] Preferably, this embodiment provides a specific implementation form of the boom 300. The boom 300 can be made of deformed steel bars. The first connecting piece 700 is a first nut and / or a first anchor that can be screwed into the deformed steel bars. The second connecting piece 400 is a second nut and / or a second anchor that can be screwed into the deformed steel bars. In addition, if a nut is selected as the connecting piece, a backing plate can be arranged between the nut and the spreader 100 or the balance beam 200 to reduce the wear on the spreader 100 or the balance beam 200. The structures of the nut or the anchor can be conveniently loosened and tightened, and the operation is convenient.

[0049] Preferably, this embodiment also provides a specific implementation form of the balance beam 200. The balance beam 200 adopts a rod structure and is preferably made of steel material, such as a square tube welded by steel plates, or the grooves of two [20 channel steels are opposite and welded together. Using steel material can better prevent the spreader 100 from deforming during the lifting process.

[0050] Based on the above more specific implementation forms, this embodiment provides a more specific usage method: (1) Connect the suspension rod 300 to the lifting tool 100: On the ground, insert the four suspension rods 300 into different slots 130 of the lifting tool 100 and enter the first lifting hole 120. Anchor the first nut on the lifting tool 100 with a torque wrench. Combine the fixing pin 150 of the suspension rod 300 to close one side of the first lifting hole 120 to prevent the suspension rod 300 from slipping out of the slot 130. It should be noted that it is necessary to calculate the length of the suspension rod 300 placed below the lifting tool 100 in advance according to the depth of the pile hole and the length of the steel reinforcement cage, and mark the length position of the suspension rod 300 exposed outside the pile hole when it is lowered. Then fix the steel wire rope 800 on the lifting tool 100, keep the center of gravity at the center of the lifting tool 100, and lift the suspension rod 300 and the lifting tool 100 together with a lifting device. Among them, an automobile crane can be used as the lifting device. (2) Connect the suspension rod 300 to the steel reinforcement cage: The suspension rod 300 is connected to the main reinforcement 1000 of the steel reinforcement cage through the third connecting piece 900; after the suspension rod 300 is screwed into the upper part of the third connecting piece 900, it cannot be disassembled after injecting the anchoring glue; the inner wall of the lower part of the third connecting piece 900 is smeared with butter in advance, and then rotate the third connecting piece 900 and tighten it with the main reinforcement 1000 of the steel reinforcement cage. (3) Connect the suspension rod 300 to the balance beam 200: After the lifting tool 100, the suspension rod 300 and the steel reinforcement cage are simultaneously lowered to the designed position at the bottom of the hole by the lifting device. At this time, the lifting device remains stationary. Vertically sleeve the balance beam 200 onto two adjacent suspension rods 300 from top to bottom. The balance beam 200 is horizontally clamped above the pile hole, and then install the second nut and tighten it with a torque wrench so that the suspension rod 300 is fixed by the balance beam 200, that is, as shown in Figure 1 and 4 the state shown (wherein Figure 4 , for the convenience of observing the hoisting situation, the steel wire rope suspending the rod-shaped hoisting piece at the front right of the suspension is also shown, but in the A-A state of Figure 1 , the steel wire rope suspending the rod-shaped hoisting piece at the front right of the suspension cannot be seen itself). (4) Removal of the lifting tool 100: After the suspension rod 300 is fixed to the balance beam 200, the first nut can be loosened with a torque wrench, lower the lifting tool 100, and fold the periphery or end of the lifting tool 100, that is, as shown in Figure 3 the state shown, and hoist it out of the pile hole. The steel reinforcement cage is suspended by the balance beam 200. (5) Removal cycle of the suspension rod 300: After the concrete in the pile foundation is poured, the buoyancy and upward movement of the concrete on the steel reinforcement cage will cause the suspension rod 300 to lose tension. At this time, the first nut on the balance beam 200 can be loosened, and at the same time, observe whether there is any sinking. After there is no sinking, remove the first nut, then remove the balance beam 200, rotate the suspension rod 300 so that the third connecting piece 900 rotates together with the suspension rod 300, so as to separate from the main reinforcement 1000 of the steel reinforcement cage, take out the suspension rod 300 and the third connecting piece 900, and recycle the steel reinforcement cage hoisting device to the next construction position of the steel reinforcement cage for use.

Claims

1. A recyclable steel cage hoisting device, characterized in that include: The suspension rods include four; A sling, whose circumference or end can be folded to reduce its length or diameter, and the folded part is provided with four slots from the edge inward, and the slot is provided with a first hanging hole at one end away from the edge of the sling, and the slot and the first hanging hole can be matched and inserted into the sling rod, and when in an unfolded state, among the four first hanging holes, every two of the first hanging holes on the opposite sides are connected, and the connecting lines cross and are perpendicular to each other, and the distance from each first hanging hole to the intersection point is equal; A first connecting member, which is detachably arranged above or below the first hanging hole and is used to enable the hanger to fix the hanging rod; The shoulder pole beams include two beams, which can be matched and arranged above the pile hole, and are provided with two second hanging holes, the second hanging holes can match and pass through the hanging rod, and the distance between the two second hanging holes matches the distance between the adjacent first hanging holes; A second connecting member is detachably arranged above or below the second hanging hole and is used to fix the hanging rod to the shoulder pole beam; The third connecting piece has an upper portion connected to the suspension rod and a lower portion used for detachable connection with the main reinforcement of the steel cage.

2. The recyclable steel cage hoisting device according to claim 1 is characterized in that: It also includes a supporting mechanism, which is respectively arranged under the two ends of the shoulder pole beam.

3. The recyclable steel cage hoisting device according to claim 1 is characterized in that: The lower end of the suspension rod is provided with an external thread, the upper end of the third connecting piece is provided with an internal thread matching the external thread of the lower end of the suspension rod, and the lower end is provided with an internal thread matching the main reinforcement thread of the steel cage.

4. The recyclable steel cage hoisting device according to claim 1 is characterized in that: The sling comprises two rod-shaped slings, the middle parts of the two rod-shaped slings are vertically connected, and two ends of each sling are respectively provided with a slot and a first sling hole.

5. The recyclable steel cage hoisting device according to claim 1 is characterized in that: The lifting device comprises a disc-shaped lifting member, and four slots and four first lifting holes are arranged on the circumference of the disc-shaped lifting member from the edge inward.

6. The recyclable steel cage hoisting device according to claim 4 is characterized in that: A hanging piece pin hole is arranged on the side wall, top or bottom of the rod-shaped hanging piece, and a detachable hanging rod fixing pin is arranged to match it. When the hanging rod fixing pin is inserted, it can be fixed on the side of the first hanging hole close to the slot.

7. The recyclable steel cage hoisting device according to claim 4 is characterized in that: The rod-shaped hanging part comprises a hanging part main body and a hanging part folding part, both ends of the hanging part main body are connected to the hanging part folding part through hinged connecting rods respectively, and the hanging part main body and the hanging part folding part can be fixed together through a hanging fixing piece to form a straight rod shape.

8. The recyclable steel cage hoisting device according to claim 7 is characterized in that: The hanging fixing piece is a folding fixing pin matchedly arranged at two ends of the hanging piece main body and at one end of the hanging piece folding part close to the hanging piece main body.

9. The recyclable steel cage hoisting device according to claim 8, characterized in that: The folding fixing pin includes a pin tongue, a pin seat and a pin shaft. The pin tongue is hinged to the main body of the hanging part or the folding part of the hanging part. The folding part of the hanging part or the main body of the hanging part is correspondingly provided with a pin seat. The pin shaft can be matched and inserted into the pin seat and the pin tongue to fix the main body of the hanging part and the folding part of the hanging part together to form a straight rod shape.

10. The recyclable steel cage hoisting device according to claim 1 or 3, characterized in that: The hanger rod is threaded steel, the first connecting member is a first nut and / or a first anchor that can be matched and screwed into the threaded steel, and the second connecting member is a second nut and / or a second anchor that can be matched and screwed into the threaded steel.

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