Pile foundation reinforcement cage lifting appliance

Abstract

The utility model relates to a pile foundation reinforcement cage lifting appliance which comprises a lifting frame, a lifting device and a lifting device, the lifting frame comprises two supporting rods which are arranged in a crossed mode, and lifting feet are formed at the two ends of each supporting rod respectively; the lifting lug piece is provided with an upper lifting point, a lower lifting point and a hooking point, the upper lifting point is located above the lifting frame, the lower lifting point is located below the lifting frame, and the hooking point is located below the lifting frame; the lifting lug piece is rotationally connected to the lifting foot; the lifting hook is mounted at the crossed position of the two supporting rods; and the cable-stayed chain comprises a plurality of ring buckles which are buckled with one another, one ring buckle is buckled with the hook buckle point, and the other ring buckle is buckled with the lifting hook. According to the utility model, when reinforcement cages with different diameters are hoisted, the reinforcement cages are not influenced by horizontal force, and the deformation of the reinforcement cages is avoided.

Description

Technical Field

[0001] This application relates to the technical field of steel cage hoisting equipment, and particularly to a pile foundation steel cage sling. Background Art

[0002] During the construction of pile foundations, it is necessary to hoist the steel cage vertically into the pile hole and then fill it with concrete. The traditional way to hoist the steel cage is to directly connect the steel cage and the crane with steel wires. This causes the two connection nodes of the steel wires not to be in the same direction, generating a horizontal force towards the center of the steel cage during hoisting, which easily leads to deformation of the steel cage due to the horizontal force. To eliminate the horizontal force on the steel cage during hoisting, some improvement solutions have emerged in the prior art. For example, a cross-shaped hanging plate is added between the hoisting equipment and the steel cage to make the force direction on the steel cage vertical. However, although the force direction on the steel cage is changed, when the diameter of the steel cage changes, the hanging points on the cross-shaped hanging plate and the hanging points on the steel cage will be misaligned again, causing the steel cage to be subjected to the horizontal force again and possibly deforming. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a pile foundation steel cage sling, and its specific technical solution is as follows.

[0004] A pile foundation steel cage sling includes:

[0005] A suspension bracket, including two cross-arranged support rods, and the two ends of each support rod respectively form hanging feet;

[0006] A hanging ear member, provided with an upper hanging point, a lower hanging point and a hook point. The upper hanging point is located above the suspension bracket, the lower hanging point is located below the suspension bracket, and the hook point is located below the suspension bracket; the hanging ear member is rotatably connected to the hanging feet;

[0007] A hook, installed at the cross position of the two support rods;

[0008] A stay chain, including a plurality of mutually buckled links. One link is buckled with the hook point, and one link is buckled with the hook.

[0009] Specifically, the support rod includes a first rod body and a second rod body arranged at intervals; the hanging ear member is arranged between the first rod body and the second rod body and is rotatably connected to the support rod through a hinge shaft.

[0010] Specifically, the hinge shaft includes a head, a rod body and a first nut; the head abuts against the support rod, the rod body is connected to the head and passes through the support rod; the rod body includes a smooth section and a threaded section, the smooth section is rotatably connected to the hanging ear member, and the threaded section is connected to the first nut.

[0011] Specifically, it further includes:

[0012] The first steel wire rope is connected to the upper suspension point at one end and to the crane at the other end, showing an inclined shape.

[0013] The second steel wire rope is connected to the lower suspension point at one end and to the steel reinforcement cage at the other end, showing a vertical shape.

[0014] Specifically, reinforcing plates are respectively connected to the upper and lower sides of the hanger, and the reinforcing plates are located at the intersection of the two support rods.

[0015] Specifically, it further includes a suspension rod. One end of the suspension rod is connected to the reinforcing plate, and the other end passes through the two reinforcing plates and is connected to the hook.

[0016] Specifically, a second nut is threadedly connected to one end of the suspension rod, and the second nut abuts against the reinforcing plate above the hanger; the other end of the suspension rod passes through the reinforcing plate below the hanger and is connected to the hook; the hook is always located above the lower suspension point.

[0017] Specifically, the two support rods are perpendicular to each other, and the connection lines between the lower suspension points form a regular quadrilateral shape.

[0018] Beneficial effects: For a pile foundation steel reinforcement cage lifting tool provided by the present utility model, the lifting lug and the hook are connected by an inclined pulling chain, so that the lifting lug maintains an inclined state, and different links on the inclined pulling chain are connected to the hook, thereby changing the inclination angle of the lifting lug, and thus changing the position of the lower suspension point to adapt to steel reinforcement cages of different diameters, ensuring that when lifting steel reinforcement cages of different diameters, the steel reinforcement cage is not affected by horizontal forces and preventing the steel reinforcement cage from deforming. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram when lifting the steel reinforcement cage;

[0021] Figure 2 It is a schematic diagram of the lifting tool;

[0022] Figure 3 It is a schematic diagram of the hinge shaft.

[0023] Description of the reference numerals: 1. Hanger; 2. Lifting lug; 3. Hook; 4. Inclined pulling chain; 5. First steel wire rope; 6. Second steel wire rope; 7. Steel reinforcement cage; 8. Suspension rod; 9. Second nut;

[0024] 11. Support rod; 12. First rod body; 13. Second rod body; 14. Hinge shaft; 15. Reinforcing plate;

[0025] 141. Head; 142. Smooth section; 143. Threaded section;

[0026] 21. Upper suspension point; 22. Lower suspension point; 23. Hook point. Specific embodiments

[0027] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0033] Embodiment

[0034] This embodiment provides a lifting device for a pile foundation steel reinforcement cage 7. Refer to Figure 1 As shown, it includes a hanging frame 1, a hanging ear member 2, a hook 3 and a stay chain 4. The hanging frame 1 includes two cross-arranged support rods 11. Hanging feet are respectively formed at both ends of each support rod 11. The two support rods 11 are perpendicular to each other, so that the connection lines between the four hanging feet form a square. Refer to Figure 2 As shown, the hanging ear member 2 is provided with an upper hanging point 21, a lower hanging point 22 and a hook point 23. The upper hanging point 21 is located above the hanging frame 1, the lower hanging point 22 is located below the hanging frame 1, and the hook point 23 is located below the hanging frame 1; the hanging ear member 2 is rotatably connected to the hanging feet. Among them, the lower hanging point 22 is used to connect with the steel reinforcement cage 7. Since the connection lines of the four hanging feet form a square, by simultaneously changing the inclination angles of the four hanging ear members 2, the inclination angles of the four hanging ear members 2 are the same, so that the connection lines between the four lower hanging points 22 form a square, adapting to the steel reinforcement cage 7 with a corresponding diameter. The hook 3 is installed at the intersection position of the two support rods 11. The stay chain 4 includes a plurality of interlocking links, so that one link is buckled with the hook point 23 and one link is buckled with the hook 3. During the hoisting process, the rotation angle of the hanging ear member 2 is restricted by the stay chain 4.

[0035] A lifting device for a pile foundation steel reinforcement cage 7 provided in this embodiment connects a lifting lug member 2 and a hook 3 through an inclined pulling chain 4, keeps the lifting lug member 2 in an inclined state, and connects different links on the inclined pulling chain 4 to the hook 3, so as to change the inclination angle of the lifting lug member 2, and thus change the position of the lower lifting point 22 to adapt to steel reinforcement cages 7 with different diameters, ensuring that when lifting steel reinforcement cages 7 with different diameters, the steel reinforcement cages 7 are not affected by horizontal forces and preventing the steel reinforcement cages 7 from deforming.

[0036] Specifically, the support rod 11 includes a first rod body 12 and a second rod body 13 arranged at intervals; the lifting lug member 2 is disposed between the first rod body 12 and the second rod body 13 and is rotatably connected to the support rod 11 through a hinge shaft 14. The hinge shaft 14 includes a head 141, a rod body and a first nut; the head 141 abuts against the support rod 11, the rod body is connected to the head 141 and passes through the support rod 11; the rod body includes a smooth section 142 and a threaded section 143, the smooth section 142 is rotatably connected to the lifting lug member 2, and the threaded section 143 is connected to the first nut.

[0037] Specifically, the distance L1 from the upper lifting point 21 to the hinge shaft 14 can be made smaller than the distance L2 from the lower lifting point 22 to the hinge shaft 14, so as to increase the adjustment range of the lower lifting point 22 when rotating the lifting lug member 2, and thus increase the range of diameter changes of the steel reinforcement cage 7 that can be adapted.

[0038] Specifically, it further includes a first steel wire rope 5 and a second steel wire rope 6. One end of the first steel wire rope 5 is connected to the upper lifting point 21, and the other end is connected to a crane, in an inclined shape; one end of the second steel wire rope 6 is connected to the lower lifting point 22, and the other end is connected to the steel reinforcement cage 7, in a vertical shape. When lifting the steel reinforcement cage 7, the first steel wire rope 5 exerts an oblique pulling force on the lifting lug member 2, so that the lifting lug member 2 has a tendency to rotate to be parallel to the first steel wire rope 5. The inclined pulling chain 4 exerts a pulling force on the other end of the lifting lug member 2. Since the length of the inclined pulling chain 4 is fixed, the rotation of the lifting lug member 2 is restricted. By changing the different buckles buckled with the hook 3, the length of the inclined pulling chain 4 can be changed, so as to change the angle of the lifting lug member 2, make the positional relationship between the lower lifting points 22 correspond to the diameter of the steel reinforcement cage 7, and thus the second steel wire rope 6 exerts a vertical pulling force on the steel reinforcement cage 7 to lift the steel reinforcement cage 7.

[0039] Specifically, reinforcing plates 15 are respectively connected to the upper and lower sides of the hanger 1, and the reinforcing plates 15 are located at the intersection positions of the two support rods 11. A suspension rod 8 is also provided at the position of the reinforcing plate 15. One end of the suspension rod 8 is threadedly connected with a second nut 9, and the second nut 9 abuts against the reinforcing plate 15 above the hanger 1; the other end of the suspension rod 8 passes through the reinforcing plate 15 below the hanger 1 and is connected to the hook 3; the hook 3 is always located above the lower suspension point 22. By adjusting the second nut 9, the position of the hook 3 can be changed, so that the inclination angle of the lifting lug member 2 can be finely adjusted. Since the distance adjusted by the stay chain 4 each time is the unit length of one loop, the adjustment accuracy of the position of the lower suspension point 22 is limited. By adjusting the position of the hook 3 with the second nut 9, the adjustment accuracy can be improved.

[0040] Usage process: Connect the first steel wire rope 5 to the hook of the crane, initially lift the lifting tool, adjust the connection between the loop of the stay chain 4 and the hook 3, and then cooperate with adjusting the second nut 9 to change the height of the hook 3, so as to adjust the angle of the lifting lug member 2, make the position of the lower suspension point 22 adapt to the diameter of the steel reinforcement cage 7, and finally connect the second steel wire rope 6 to the steel reinforcement cage 7 and lift the steel reinforcement cage 7.

[0041] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0042] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A pile foundation steel cage hanger, characterized in that: include: The hanger comprises two cross-arranged support rods, and two ends of each support rod form a hanging foot; The lifting ear is provided with an upper hanging point, a lower hanging point and a hook point, wherein the upper hanging point is located above the hanger, the lower hanging point is located below the hanger, and the hook point is located below the hanger; the lifting ear is rotatably connected to the hanging foot; A hook is installed at the intersection of two support rods; The oblique chain comprises a plurality of interlocking buckles, one buckle is buckled with a hook point, and another buckle is buckled with a hook.

2. A pile foundation steel cage hanger according to claim 1, characterized in that: The support rod comprises a first rod body and a second rod body which are arranged at intervals; the ear piece is arranged between the first rod body and the second rod body, and is rotatably connected to the support rod through a hinge shaft.

3. A pile foundation steel cage hanger according to claim 2, characterized in that: The hinge shaft includes a head, a rod body and a first nut; the head is against the support rod, the rod body is connected to the head and passes through the support rod; the rod body includes a smooth section and a threaded section, the smooth section is rotatably connected to the ear piece, and the threaded section is connected to the first nut.

4. A pile foundation steel cage hanger according to claim 1, characterized in that: Also includes: The first wire rope has one end connected to the upper hanging point and the other end connected to the crane in an inclined shape; The second steel wire rope has one end connected to the lower suspension point and the other end connected to the steel cage to form a vertical shape.

5. A pile foundation steel cage hanger according to claim 1, characterized in that: The upper and lower sides of the hanger are respectively connected with reinforcement plates, and the reinforcement plates are located at the intersection of the two support rods.

6. A pile foundation reinforcement cage hanger according to claim 5, characterized in that: It also includes a suspension rod, one end of which is connected to the reinforcement plate, and the other end of which passes through two reinforcement plates and is connected to the suspension hook.

7. A pile foundation reinforcement cage hanger according to claim 6, characterized in that: One end of the suspension rod is threadedly connected with a second nut, and the second nut is against the reinforcing plate above the hanger; the other end of the suspension rod passes through the reinforcing plate below the hanger and is connected to the hook; the hook is always located above the lower suspension point.

8. A pile foundation steel cage hanger according to claim 1, characterized in that: The two support rods are perpendicular to each other, and the connecting lines between the lower hanging points form a regular quadrilateral.

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