Lifting device for epoxy steel bar components of pier shaft

Abstract

The present invention discloses a hoisting device for the epoxy steel bar component of a pier body, comprising: a hanging frame and a plurality of first conical collars. The hanging frame has a closed-loop structure, and the hanging frame is provided with a plurality of first vertical through holes which are arranged at intervals along the extending direction of the hanging frame. The diameter of the first vertical through holes gradually decreases along the gravity direction, and the first vertical through holes are used for a single steel bar at the top of the steel bar component to pass through. The plurality of first conical collars are configured in one-to-one correspondence with the plurality of first vertical through holes; the first conical collar is composed of an independent left collar and a right collar, the outer diameter of the first conical collar gradually decreases along the gravity direction, and the bottom end of the first conical collar is detachably inserted downward into the first vertical through hole, and the cylindrical through hole of the first conical collar is coaxial with the first vertical through hole. It can not only ensure the stability of hoisting, but also the hoisting process is not only convenient for installation but also convenient for disassembly.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment, and particularly to a hoisting device for epoxy steel bar parts of pier shafts. Background Art

[0002] The pier shafts of bridges need to be wrapped with stirrup layers. The traditional method is to bundle the steel bars into sheets, and then lift the whole steel bar parts by a crane and sleeved them around the periphery of the pier shaft. The process of lifting the steel bar parts not only needs to ensure reliability, but also needs to be easy to disassemble to improve construction efficiency. However, the current hoisting devices fail to take both into account and cannot balance between hoisting stability and disassembly convenience. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a hoisting device for epoxy steel bar parts of pier shafts, which can not only ensure the hoisting stability, but also the hoisting process is convenient for both installation and disassembly.

[0004] The purpose of the present invention is achieved by adopting the following technical solutions:

[0005] A hoisting device for epoxy steel bar parts of pier shafts, comprising:

[0006] A hanging frame, which is in a closed-loop structure. The hanging frame is provided with a plurality of first vertical through holes, and the plurality of first vertical through holes are arranged at intervals along the extending direction of the hanging frame. The diameter of the first vertical through hole gradually becomes smaller along the gravity direction, and the first vertical through hole is used for a single steel bar at the top of the steel bar part to pass through;

[0007] A plurality of first conical rings, which are configured in one-to-one correspondence with the plurality of first vertical through holes; the first conical ring is composed of an independent left ring and right ring, the outer diameter of the first conical ring gradually becomes smaller along the gravity direction, and the bottom end of the first conical ring is detachably inserted into the first vertical through hole downward, and the cylindrical through hole of the first conical ring is coaxial with the first vertical through hole.

[0008] Further, a groove extending along its circumferential direction is provided at the top of the first conical ring, and a clamp is detachably connected to the groove.

[0009] Further, the hanging frame includes an annular base plate and a plurality of cylindrical seats fixed on the annular base plate, and each of the first vertical through holes is respectively arranged in one of the cylindrical seats.

[0010] Further, the hoisting device for the pier epoxy steel bar component further includes an internal support and a plurality of second conical sleeves. The internal support is fixedly connected to the hanger. The internal support is provided with a plurality of second vertical through holes arranged at intervals. The plurality of second vertical through holes are located within the area enclosed by the hanger. The structure of the second vertical through hole is the same as that of the first vertical through hole, and the structure of the second conical sleeve is the same as that of the first conical sleeve. The plurality of second conical sleeves are connected to the plurality of second vertical through holes in a one-to-one correspondence.

[0011] Further, the hanger has a runway-like structure. The internal support is arranged symmetrically about the long axis of the hanger and symmetrically about the short axis of the hanger. The plurality of second vertical through holes are evenly distributed on both sides of the long axis of the hanger and evenly distributed on both sides of the short axis of the hanger.

[0012] Further, the hoisting device for the pier epoxy steel bar component further includes a falsework. The falsework is provided with a plurality of annular working platforms arranged at intervals in the height direction. The falsework is provided with a construction area extending in the direction of gravity. The construction area is used to accommodate the steel bar component.

[0013] Further, a staircase is connected between two adjacent annular working platforms.

[0014] Further, the annular working platform is provided with a guardrail.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By providing a plurality of first vertical through holes in the hanger, the entire steel bar component can be lifted by the method of multi-point force application through the cooperation of the plurality of first vertical through holes and multiple steel bars one by one.

[0017] 2. By setting the first conical sleeve to be composed of a left sleeve 21 and a right sleeve in combination, it is convenient to insert the first conical sleeve into the first vertical through hole and to separate the first conical sleeve from the steel bar.

[0018] 3. Importantly, based on the fact that the left sleeve 21 and the right sleeve are independent of each other and inertial downward under their own gravity, when the hanger rises, the left sleeve and the right sleeve clamp the steel bar tightly, ensuring the stability of the hoisting. When the hoisting is completed, as the hanger moves downward, the left sleeve and the right sleeve simultaneously release the clamping force on the steel bar, so the disassembly process is particularly simple.

[0019] 4. Additionally, by setting the diameter of the first vertical through-hole to gradually decrease along the direction of gravity and setting the outer diameter of the first conical collar to gradually decrease along the direction of gravity, when the first conical collar is fitted with the first vertical through-hole, it is in a tightly fitting state, thereby further improving the stability of the hoisting.

[0020] 5. By retaining the equal cross-sectional structure of the cylindrical through-hole of the first conical collar, the steel bars can be smoothly and well extruded. Brief Description of the Drawings

[0021] Figure 1 It is a schematic structural view of the connection between the hanger and the internal support of the hoisting device for the pier body epoxy steel bar component of the present invention;

[0022] Figure 2 is Figure 1 a partial cross-sectional view, in which the effect after sleeving the steel bars is shown;

[0023] Figure 3 is Figure 2 the front view of

[0024] Figure 4 is Figure 3 the cross-sectional view at A-A of

[0025] Figure 5 is Figure 1 the schematic structural view of the jig shown;

[0026] Figure 6 is Figure 5 the front view of

[0027] Figure 7 is Figure 5 the side view of

[0028] Figure 8 is Figure 1 the schematic structural view of the hoisting device for the pier body epoxy steel bar component shown.

[0029] In the figure: 1. Hanger; 11. First vertical through-hole; 12. Ring-shaped base plate; 13. Cylindrical seat; 2. First conical collar; 21. Left collar; 22. Right collar; 23. Cylindrical through-hole; 24. Groove; 3. Internal support; 31. Second vertical through-hole; 4. Jig; 41. Ring-shaped working platform; 43. Guardrail; 44. Staircase. Detailed Embodiments

[0030] Next, in combination with the drawings and specific embodiments, the present invention will be further described. It should be noted that on the premise of non-conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can 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. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the invention herein are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] See Figure 1 , the hoisting device for the pier body epoxy steel bar component in a preferred embodiment of the present invention includes: a hanger 1 and a plurality of first conical rings 2.

[0034] See Figures 1-4 , the hanger 1 has a closed-loop structure. The hanger 1 is provided with a plurality of first vertical through holes 11. The plurality of first vertical through holes 11 are arranged at intervals along the extending direction of the hanger 1. The diameter of the first vertical through hole 11 gradually becomes smaller along the gravity direction. The first vertical through hole 11 is for a single steel bar at the top of the steel bar component to pass through.

[0035] The plurality of first conical rings 2 are configured in one-to-one correspondence with the plurality of first vertical through holes 11; See Figure 2 , the first conical ring 2 is composed of an independent left ring 21 and a right ring 22. See Figure 4 , the outer diameter of the first conical ring 2 gradually becomes smaller along the gravity direction. The bottom end of the first conical ring 2 is detachably inserted into the first vertical through hole 11, and the cylindrical through hole 23 of the first conical ring 2 is coaxial with the first vertical through hole 11.

[0036] It should be noted that due to the better anti-rust ability of the epoxy steel bar parts, they are applicable to water area bridges. However, the welding performance of the epoxy steel bar parts is poor, so the steel bars need to be tied together through galvanized buckles or binding wires. After tying the steel bar parts, they need to be lifted and sleeved around the pier. Therefore, first, the lifting frame 1 is lapped on the top of the steel bar parts, and a steel bar is inserted through each first vertical through hole 11. Then, the left collar 21 and the right collar 22 of the first conical collar 2 are respectively inserted into the first vertical through hole 11. Next, the lifting frame 1 is lifted by a crane. The left collar 21 and the right collar 22 of the first conical collar 2 have a tendency to press towards the steel bars under the drive of their own gravity, so as to lock the steel bars. Therefore, the lifting frame 1 can lift the entire steel bar parts for installation. Moreover, during disassembly, by lowering the lifting frame 1, the radial extrusion force of the first conical collar 2 can be released. What needs to be analyzed in depth here is, please refer to Figure 4 , when the lifting frame 1 rises, based on the fact that the diameter of its first vertical through hole 11 gradually becomes smaller along the gravity direction, and the outer diameter of the first conical collar 2 gradually becomes smaller along the gravity direction, the extrusion forces of the lifting frame 1 on the left collar 21 and the right collar 22 are respectively inclined upwards and both towards the axis of the steel bar. In particular, the greater the overall weight of the steel bar parts, the greater this extrusion force, that is, the self-locking phenomenon is realized. Under the action of this extrusion force that is inclined upwards and both towards the axis of the steel bar, the friction between the left collar 21 and the right collar 22 is very large, and the outer wall roughness of the steel bar is relatively large. Therefore, under the collective force of multiple steel bars, the lifting frame 1 can lift the steel bar parts.

[0037] Obviously, by providing a plurality of first vertical through holes 11 in the lifting frame 1, the entire steel bar parts can be lifted by the multi-point force application method through the one-to-one cooperation of the plurality of first vertical through holes 11 and multiple steel bars. By setting the first conical collar 2 to be composed of the combination of the left collar 21 and the right collar 22, it is convenient to insert the first conical collar 2 into the first vertical through hole 11 and to separate the first conical collar 2 from the steel bar. Importantly, based on the fact that the left collar 21 and the right collar 22 are independent of each other and tend to move downwards due to their own gravity, when the lifting frame 1 rises, the left collar 21 and the right collar 22 lock the steel bars, ensuring the stability of the lifting; when the lifting is completed, as the lifting frame 1 moves down, the left collar 21 and the right collar 22 simultaneously release the clamping force on the steel bar, so the disassembly process is particularly simple. In addition, by setting the diameter of the first vertical through hole 11 to gradually become smaller along the gravity direction and setting the outer diameter of the first conical collar 2 to gradually become smaller along the gravity direction, when the first conical collar 2 is fitted with the first vertical through hole 11, it is in a tightly fitting state to further improve the stability of the lifting. By retaining the equal cross-section structure of the cylindrical through hole 23 of the first conical collar 2, the steel bar can be smoothly and well extruded.

[0038] Preferably, refer toFigure 2 , a groove 24 extending along the circumferential direction of itself is formed at the top of the first conical collar 2, and a clamp is detachably connected to the groove 24. With such a setting, the bottom of the first conical collar 2 has a tendency to expand outwards, thereby further improving the stability during hoisting.

[0039] Preferably, referring to Figure 2 , the hanger 1 includes an annular base plate 12 and a plurality of cylindrical seats 13 fixed to the annular base plate 12, and each first vertical through hole 11 is respectively arranged in one of the cylindrical seats 13. With such a setting, the processing difficulty of the first vertical through hole 11 of the hanger 1 is reduced, and the strength of the first vertical through hole 11 is determined by the cylindrical seat 13, and this part is a vulnerable part, so that the strength of the hanger 1 can be improved by means of local strengthening.

[0040] Preferably, referring to Figure 1 , the hoisting device for the pier body epoxy steel bar component further includes an internal support 3 and a plurality of second conical collars. The internal support 3 is fixedly connected to the hanger 1. The internal support 3 is provided with a plurality of second vertical through holes 31 arranged at intervals. The plurality of second vertical through holes 31 are located in the area enclosed by the hanger 1; the structure of the second vertical through hole 31 is the same as the structure of the first vertical through hole 11, and the structure of the second conical collar is the same as the structure of the first conical collar 2. The plurality of second conical collars are connected to the plurality of second vertical through holes 31 in one-to-one correspondence. With such a setting, the force on the entire steel bar component can be more uniform, thereby further improving the stability of hoisting.

[0041] In order to further improve the stability of hoisting, referring to Figure 1 , preferably, the hanger 1 has a runway-shaped structure, the internal support 3 is arranged symmetrically about the long axis of the hanger 1 and symmetrically about the short axis of the hanger 1; the plurality of second vertical through holes 31 are evenly distributed on both sides of the long axis of the hanger 1 and evenly distributed on both sides of the short axis of the hanger 1.

[0042] Preferably, referring to Figures 4-7 , the hoisting device for the pier body epoxy steel bar component further includes a falsework 4. The falsework 4 is provided with a plurality of annular working platforms 41 arranged at intervals in the height direction. The falsework 4 is provided with a construction area 42 extending in the direction of gravity. The construction area 42 is used to accommodate the steel bar component. Obviously, by assisting work through the annular working platform 41, the efficiency of bundling steel bars can be improved. Preferably, a staircase 44 is connected between two adjacent annular working platforms 41. Preferably, the annular working platform 41 is provided with a guardrail 43.

[0043] The above embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. Hoisting device for pier epoxy steel bar parts, characterized in that Comprising: A suspension hanger (1), which is in a closed-loop structure. The suspension hanger (1) is provided with a plurality of first vertical through holes (11). The plurality of first vertical through holes (11) are arranged at intervals along the extending direction of the suspension hanger (1). The diameter of the first vertical through hole (11) gradually decreases along the gravity direction. The first vertical through hole (11) is used for a single steel bar at the top of the steel bar component to pass through; a plurality of first conical collars (2), which are configured in one-to-one correspondence with the plurality of first vertical through holes (11); the first conical collar (2) is composed of an independent left collar (21) and a right collar (22). The outer diameter of the first conical collar (2) gradually decreases along the gravity direction. The bottom end of the first conical collar (2) is detachably inserted into the first vertical through hole (11), and the cylindrical through hole (23) of the first conical collar (2) is coaxial with the first vertical through hole (11).

2. The hoisting device for the pier body epoxy steel bar component according to claim 1, wherein: A groove (24) extending along the circumferential direction of itself is provided at the top of the first conical collar (2), and a clamp is detachably connected to the groove (24).

3. The hoisting device for the pier epoxy steel bar component according to claim 1, characterized in that: The suspension hanger (1) includes an annular base plate (12) and a plurality of cylindrical seats (13) fixed to the annular base plate (12). Each of the first vertical through holes (11) is provided in one of the cylindrical seats (13).

4. The lifting device for the pier epoxy steel bar component according to claim 1, characterized in that: The hoisting device for the pier epoxy steel bar component further includes an internal support (3) and a plurality of second conical collars. The internal support (3) is fixedly connected to the suspension hanger (1). The internal support (3) is provided with a plurality of second vertical through holes (31) arranged at intervals. The plurality of second vertical through holes (31) are located in the area enclosed by the suspension hanger (1); the structure of the second vertical through hole (31) is the same as that of the first vertical through hole (11), and the structure of the second conical collar is the same as that of the first conical collar (2). The plurality of second conical collars are connected in one-to-one correspondence with the plurality of second vertical through holes (31).

5. The hoisting device for pier body epoxy steel bar parts according to claim 4, characterized in that: The suspension hanger (1) is in a runway-like structure. The internal support (3) is arranged symmetrically about the long axis of the suspension hanger (1) and symmetrically about the short axis of the suspension hanger (1); the plurality of second vertical through holes (31) are evenly distributed on both sides of the long axis of the suspension hanger (1) and evenly distributed on both sides of the short axis of the suspension hanger (1).

6. The hoisting device for the pier epoxy steel bar component according to claim 1, characterized in that: The hoisting device for the pier epoxy steel bar component further includes a falsework (4). The falsework (4) is provided with a plurality of annular working platforms (41) arranged at intervals in the height direction. The falsework (4) is provided with a construction area (42) extending along the gravity direction. The construction area (42) is used to accommodate the steel bar component.

7. The hoisting device for the pier body epoxy steel bar component according to claim 6, characterized in that: The annular working platform (41) is provided with a guardrail (43).

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