CN220704347U - Rotatable joint device of bridge suspension casting hanging basket - Google Patents

Abstract

A rotatable joint device for a bridge suspension pouring basket relates to the field of connecting devices. The rotatable joint device of the bridge hanging basket includes an upper joint for detachable connection with the steel plate sling, a lower joint for detachable connection with the bottom form hanger and a connecting pin; the two ends of the connecting pin can be rotated around The axis is rotatably connected to the upper joint and the lower joint. The bottom of the connection pin is connected to the limit block. The lower joint is connected to two limit rods. When the lower joint rotates 90 degrees around its axis, the two limit rods block the limit blocks respectively. bit block. The rotatable joint device of the bridge hanging basket provided by this application can facilitate the operator to use the steel plate strap to connect the bottom form hanger, move the bottom form beam to the preset position and then rotate the bottom form hanger to separate from the bottom form beam, thereby effectively improving the efficiency of the bridge hanging basket. Construction efficiency.

Description

A rotatable joint device for a bridge suspended pouring basket

Technical field

The present application relates to the field of connection devices, and in particular to a rotatable joint device for a bridge suspended casting basket.

Background technique

When the bridge uses a hanging basket for cantilever casting, steel plate slings are often used to bear the load of the bottom mold, side molds and inner molds, because the steel plate slings greatly increase the stiffness compared to cylindrical precision-rolled threaded steel bars, and their plastic properties are better than precision-rolled ones. Rebar greatly improves safety. Therefore, relevant domestic regulations currently stipulate that steel plate slings must be used in parts such as the front slings of hanging baskets that do not pass through concrete.

The steel plate sling generally adopts a rectangular cross-section and generally has a large width-to-thickness ratio. Its upper part passes through the front upper beam of the hanging basket and is carried on the pad beam of the front upper beam using pins and pin supports in a suspended state. Generally, it cannot rotate; There is a pin hole at the lower end of the steel plate sling, which is generally connected with the two ear plates of the T-shaped bottom form hanger. The bottom form hanger passes through the gap of the bottom form beam so that its cantilever part lifts up the bottom form beam. Used to support the bottom mold load.

Since the steel plate sling adopts a rectangular cross-section, it is divided into width direction and thickness direction. It cannot be rotated after passing through the rectangular hole of the pad beam. According to the construction process of the hanging basket, the steel plate sling is often separated or connected to the bottom formwork beam. At present, The conventional method is to pull out or insert the pins of the steel plate slings and the bottom formwork hanger. Considering that there are many construction sections and the number of steel plate slings is large during cantilever pouring, the workload of inserting and unplugging the pins is large, and the bottom When the formwork hanger is connected to the steel plate sling, the pin needs to pass through three thick steel plates at the same time. It is difficult to insert and pull out the pin, which causes the separation or connection of the steel plate sling and the bottom formwork beam to take a long time, affecting the construction efficiency.

Utility model content

The purpose of this application is to provide a rotatable joint device for a bridge hanging basket, which can facilitate the operator to use a steel plate sling to connect the bottom form hanger, move the bottom form to a preset position, and then rotate the bottom form hanger to separate from the bottom form beam. , thereby effectively improving construction efficiency.

This application is implemented as follows:

This application provides a rotatable joint device for a bridge hanging basket, which includes an upper joint for detachable connection with a steel plate sling, a lower joint for detachable connection with a bottom formwork hanger, and a connecting pin; the connecting pin The two ends of the joint are connected to the upper joint and the lower joint so as to be rotatable around its axis. The bottom of the connecting pin is connected to a limit block. The lower joint is connected to two limit rods. When the lower joint rotates 90 degrees around its axis, the two The two limit rods block the limit blocks respectively.

In some optional embodiments, the upper joint includes an upper top plate provided with upper connection holes, a pair of upper ear plates connected to the top of the upper top plate, at least two first stiffening plates whose tops are connected to the bottom of the upper top plate, and at least two top portions. The second stiffening plate is connected to the bottom of the upper top plate. The top of the connecting pin passes through the upper connecting hole and is connected to an upper shaft cap whose bottom is pressed against the top surface of the upper top plate. Both ends of the second stiffening plate are connected to the two first stiffening plates respectively. The two upper ear plates are respectively provided with first ear plate holes.

In some optional embodiments, at least one upper joint sealing plate is connected to the top of the upper top plate, and two ends of the upper joint sealing plate are connected to two upper ear plates respectively.

In some optional embodiments, the lower joint includes a lower top plate provided with a lower connecting hole, a pair of lower ear plates connected to the bottom of the lower top plate, at least two third stiffening plates whose bottoms are connected to the top of the lower top plate, and at least two fourth stiffening plates whose bottoms are connected to the top of the lower top plate. The bottom of the connecting pin passes through the lower connecting hole and is connected to a lower shaft cap whose top presses against the bottom surface of the lower top plate. The two ends of the fourth stiffening plate are respectively connected to the two third stiffening plates, and second ear plate holes are respectively opened on the two lower ear plates. The limit block is connected to the lower shaft cap, and the two limit rods are connected to the lower top plate.

In some optional embodiments, at least one lower joint sealing plate is connected to the top of the lower top plate, and both ends of the lower joint sealing plate are respectively connected to two lower ear plates.

In some optional embodiments, the upper top plate is provided with at least one first positioning hole for the steel bars to pass through, and the lower top plate is provided with multiple second positioning holes for the steel bars to pass through; when the connecting pin shaft is rotated 90 degrees around its axis, at least one first positioning hole is aligned with the two second positioning holes respectively.

In some optional embodiments, an upper waist-shaped hole is opened on one side of the upper top plate, and an upper waist-shaped hole repair welding plate connected to the upper top plate is arranged in the upper waist-shaped hole. The upper waist-shaped hole repair welding plate and the inner wall of the upper waist-shaped hole enclose each other to form an upper connecting hole.

In some optional embodiments, a lower waist-shaped hole is provided on one side of the lower top plate, and a lower waist-shaped hole repair welding plate connected to the lower top plate is provided in the lower waist-shaped hole, and the lower waist-shaped hole repair welding plate and the lower part The inner wall of the waist-shaped hole is enclosed to form a lower connecting hole.

The beneficial effects of the present application are as follows: the rotatable joint device for the bridge suspended casting hanging basket provided by the present application comprises an upper joint for detachably connecting with a steel plate sling, a lower joint for detachably connecting with a bottom mold hanger, and a connecting pin; the two ends of the connecting pin are rotatably connected to the upper joint and the lower joint around their axes, respectively, the bottom of the connecting pin is connected to a limit block, the lower joint is connected to two limit rods, and when the lower joint is rotated 90 degrees around its axis, the two limit rods respectively block the limit blocks. The rotatable joint device for the bridge suspended casting hanging basket provided by the present application can facilitate operators to use the steel plate sling to connect the bottom mold hanger to move the bottom mold beam to a preset position, and then rotate the bottom mold hanger to separate it from the bottom mold beam, thereby effectively improving construction efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

FIG1 is a schematic structural diagram of a rotatable joint device for a bridge suspended casting basket provided in an embodiment of the present application;

Figure 2 is a schematic structural diagram of the bridge hanging basket rotatable joint device provided by the embodiment of the present application, where both ends are respectively connected to the steel plate suspenders and the bottom form hanger;

Figure 3 is a schematic structural diagram of the bridge hanging basket rotatable joint device provided by the embodiment of the present application when the two ends are respectively connected with the steel plate straps and the bottom form hanger to lift the bottom form beam;

Figure 4 is a schematic structural diagram of the upper joint of the rotatable joint device of the bridge suspension casting basket provided by the embodiment of the present application;

FIG5 is a schematic structural diagram of a lower joint in a rotatable joint device for a bridge suspended casting basket provided in an embodiment of the present application;

FIG6 is a schematic structural diagram of a connecting pin in a rotatable joint device for a bridge suspended casting basket provided in an embodiment of the present application;

Figure 7 is a schematic top structural view of the rotatable joint device of the bridge suspended casting basket provided by the embodiment of the present application;

Figure 8 is a schematic structural view from below of the rotatable joint device of the bridge suspension casting basket provided by the embodiment of the present application;

FIG9 is a schematic diagram of a partial structure of an upper joint in a rotatable joint device for a bridge suspended casting basket provided in an embodiment of the present application;

Figure 10 is a schematic structural diagram of the upper top plate of the rotatable joint device of the bridge suspended casting basket provided by the embodiment of the present application;

Figure 11 is a schematic structural diagram of the connection between the lower top plate and the limiting rod in the rotatable joint device of the bridge suspended casting basket provided by the embodiment of the present application.

In the picture: 100. Upper joint; 110. Upper top plate; 111. Upper waist-shaped hole; 112. Upper waist-shaped hole repair plate; 120. Upper connection hole; 130. Upper ear plate; 140. First stiffening plate; 150 , second stiffening plate; 160, upper shaft cap; 170, first ear plate hole; 180, upper joint sealing plate; 190, first positioning hole; 200, lower joint; 210, lower top plate; 211, lower waist-shaped hole ; 212. Lower waist-shaped hole repair welding plate; 220. Lower connection hole; 230. Lower ear plate; 240. Third stiffening plate; 250. Fourth stiffening plate; 260. Lower shaft cap; 270. Second ear plate hole ; 280. Lower joint sealing plate; 290. Second positioning hole; 300. Connection pin; 310. Limit block; 320. Limit rod; 400. Steel plate sling; 500. Bottom form hanger; 600. Bottom form beam .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the application provided in the appended drawings is not intended to limit the scope of the claimed application, but rather to represent selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be noted that similar reference numerals and letters represent similar items in the following figures, therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

The characteristics and performance of the rotatable joint device of the bridge suspension casting basket of the present application will be described in further detail below in conjunction with the embodiments.

As shown in Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11, the present application provides a rotatable joint device for a bridge suspension pouring basket , which includes an upper joint 100 for detachable connection with the steel plate sling 400, a lower joint 200 for detachable connection with the bottom form hanger 500, and a connecting pin 300;

The upper joint 100 includes an upper top plate 110 with an upper waist-shaped hole 111 on one side. The upper waist-shaped hole 111 is provided with an upper waist-shaped hole repair welding plate 112 connected to the upper top plate 110. The upper waist-shaped hole repair welding plate 112 and The inner wall of the upper waist-shaped hole 111 is enclosed to form an upper connection hole 120. The top of the upper joint 100 is connected with two upper ear plates 130 and two upper joint sealing plates 180 located on both sides of the upper connection hole 120. The two upper joint seals Both ends of the plate 180 are connected to the two upper ear plates 130 respectively, and the upper connection hole 120 is located between the two upper ear plates 130 and the two upper joint sealing plates 180; the bottom of the upper joint 100 is connected to two upper connection holes 120 There are first stiffening plates 140 and two second stiffening plates 150 on both sides. Both ends of the two second stiffening plates 150 are connected to the two first stiffening plates 140 respectively. The upper connection holes 120 are located on the two first stiffening plates 140 and between the two second stiffening plates 150; the two upper ear plates 130 are respectively provided with first ear plate holes 170; the upper top plate 110 is provided with three first positioning holes 190 for steel bars to pass through, and the three first positioning holes are 190 are respectively opened at both ends of the upper top plate 110 and on the other side away from the upper waist-shaped hole 111;

The lower joint 200 includes a lower top plate 210 with a lower waist-shaped hole 211 on one side, a lower waist-shaped hole repair welding plate 212 connected to the lower top plate 210 is arranged in the lower waist-shaped hole 211, the lower waist-shaped hole repair welding plate 212 and the inner wall of the lower waist-shaped hole 211 are enclosed to form a lower connecting hole 220, and the bottom of the lower top plate 210 is connected to two lower ear plates 230 and two lower joint sealing plates 280 located on both sides of the lower connecting hole 220, and the two ends of the two lower joint sealing plates 280 are respectively connected to the two lower ear plates 230, and the lower connecting hole 220 is located between the two lower ear plates 230 and the two lower joint sealing plates 280. The top of the lower top plate 210 is connected with two third stiffening plates 240 and two fourth stiffening plates 250 located on both sides of the lower connecting hole 220, and the two ends of the two fourth stiffening plates 250 are respectively connected with the two third stiffening plates 240, and the lower connecting hole 220 is located between the two third stiffening plates 240 and the two fourth stiffening plates 250, and the two lower ear plates 230 are respectively provided with second ear plate holes 270; the lower top plate 210 is provided with three second positioning holes 290 for the steel bars to pass through, and the three second positioning holes 290 are respectively arranged at both ends of the lower top plate 210 and on the other side away from the lower waist-shaped hole 211.

The top of the connecting pin 300 passes through the upper connecting hole 120 and is connected to a rectangular parallelepiped upper shaft cap 160 with the bottom pressing against the top surface of the upper top plate 110 . The bottom of the connecting pin 300 passes through the lower connecting hole 220 and is connected to a top pressing There is a cylindrical lower shaft cap 260 on the bottom surface of the lower top plate 210. The side wall of the lower shaft cap 260 is connected to the limiting block 310. The bottom surface of the lower top plate 210 is connected to two limiting rods 320; when the lower joint 200 rotates 90 degrees around its axis, The two limiting rods 320 respectively block the limiting blocks 310 and align the three first positioning holes 190 and the three second positioning holes 290 or the two first positioning holes 190 and the two second positioning holes 290 .

The bridge hanging basket rotatable joint device provided by the embodiment of the present application is used to detachably connect the two ends with the steel plate suspenders 400 and the bottom form hanger 500 respectively, and then lift the bottom form beam 600 for installation and construction operations; its usage steps are specific as follows:

Pass a pin through the first ear plate hole 170 on the two upper ear plates 130 of the upper joint 100 and the steel plate sling 400, and pass another pin through the second ear plate hole 270 on the two lower ear plates 230 of the lower joint 200 and the top of the inverted T-shaped bottom mold hanger 500, so as to connect the top and bottom ends of the bridge hanging basket rotatable joint device to the steel plate sling 400 and the inverted T-shaped bottom mold hanger 500, respectively, and then use a lifting device to connect the steel plate sling 400 to lift the bridge hanging basket rotatable joint device and the bottom mold hanger 500;

When it is necessary to lift the bottom form beam 600 and move it to the construction position, first use lifting equipment to move the steel plate sling 400 and the connected bridge hanging basket rotatable joint device and the bottom form hanger 500 to the top of the bottom form beam 600, and then move it to the top of the bottom form beam 600. Rotate the connecting pin 300 on the upper joint 100 so that the connecting pin 300 rotates 90 degrees around the axis until a limit rod 320 blocks the limit block 310. At this time, the lower joint 200 connected by the connecting pin 300 drives the bottom connected The mold hanger 500 is rotated 90 degrees to be parallel to the bottom mold beam 600, so that the bottom mold hanger 500 can pass through the gap of the bottom mold beam 600, and then the lifting equipment is used to lower the rotatable joint device and the bottom of the bridge hanging basket. The mold hanger 500 moves downward for a certain distance, so that the bottom of the inverted T-shaped bottom mold hanger 500 connected to the bottom of the rotatable joint device of the bridge hanging basket passes through the gap of the bottom mold beam 600, and then the connecting pin 300 is pushed in the opposite direction. Rotate 90 degrees to reset, causing another limit rod 320 to block the limit block 310. At this time, the lower joint 200 connected to the connecting pin 300 drives the inverted T-shaped bottom mold hanger 500 connected at the bottom to rotate 90 degrees to perpendicular to For the bottom form beam 600, use lifting equipment to lift the steel plate sling 400, so that the inverted T-shaped bottom form hanger 500 supports upward and lifts the bottom form beam 600 to complete the lifting operation of the bottom form beam 600;

After using the lifting equipment to move the bottom form beam 600 to the preset construction position, control the lifting equipment to lower the steel plate sling 400, the bridge hanging basket rotatable joint device and the bottom form hanger 500 for a certain distance, so that the bottom form beam 600 is placed at the preset construction position. Support the work station and separate from the inverted T-shaped bottom mold hanger 500, and then rotate the connecting pin 300 so that the connecting pin 300 rotates 90 degrees around the axis until a limit rod 320 blocks the limit block 310. At this time, the lower joint 200 connected by the connecting pin 300 drives the bottom form hanger 500 connected at the bottom to rotate 90 degrees to be parallel to the bottom form beam 600, and the lifting equipment is controlled to lift the steel plate sling 400 and the bridge hanging basket rotatable joint device There is a certain distance from the bottom mold hanger 500 until the bottom mold hanger 500 passes through the gap of the bottom mold cross beam 600 and is completely separated from the bottom mold cross beam 600, and the hoisting and placement of the bottom mold cross beam 600 is completed.

The rotatable joint device of the bridge suspended casting hanging basket provided in the embodiment of the present application uses a connecting pin 300 to rotatably connect the upper joint 100 and the lower joint 200, and respectively connects a limit block 310 and two limit rods 320 to the connecting pin 300 and the lower joint 200 to limit the rotation range. When the connecting pin 300 drives the lower joint 200 to rotate 90 degrees to drive the T-shaped bottom mold hanger 500 to connect and separate with the bottom mold crossbeam 600, the two limit rods 320 are used to block and limit the limit block 310 respectively to achieve precise control of the rotation angle of the connecting pin 300, which is convenient for the operator to operate; at the same time, on the upper top plate 110 of the upper joint 100 Three first positioning holes 190 are provided, and three second positioning holes 290 are provided on the lower top plate 210 of the lower joint 200. When the connecting pin shaft 300 rotates 90 degrees around its axis to drive the T-shaped bottom mold hanger 500 and the bottom mold cross beam 600 to be vertically connected or parallel to each other, the two first positioning holes 190 and the two second positioning holes 290 are aligned or the three first positioning holes 190 and the three second positioning holes 290 are aligned, so that it is convenient for the operator to pass the steel bar or the long pin shaft through the aligned first positioning holes 190 and the second positioning holes 290 in sequence to connect and lock the upper joint 100 and the lower joint 200, and prevent the lower joint 200 from rotating and loosening;

In addition, two upper ear plates 130 and two upper joint sealing plates 180 are respectively provided around the top of the upper connection hole 120, and two first stiffening plates 140 and two second stiffening plates 150 are respectively provided around the bottom of the upper connection hole 120. , two upper ear plates 130, two upper joint sealing plates 180, two first stiffening plates 140 and two second stiffening plates 150 can be used to enclose the top of the connecting pin 300 passing through the upper connecting hole 120 Protection, in the same way, two lower ear plates 230 and two lower joint sealing plates 280 are respectively provided around the bottom of the lower connection hole 220, and two third stiffening plates 240 and two fourth stiffening plates are respectively provided around the top of the lower connection hole 220. The plate 250 can use two lower ear plates 230, two lower joint sealing plates 280, two third stiffening plates 240 and two fourth stiffening plates 250 to surround the bottom of the connecting pin 300 passing through the lower connecting hole 220. The two ends of the connecting pin 300 are connected to the upper joint 100 and the lower joint 200 through the upper shaft cap 160 and the lower shaft cap 260 respectively. The upper joint 100 and the lower joint 200 are connected to the steel plate sling 400 and the bottom mold hoist through the pin respectively. The frame 500 is connected, thereby dispersing the slight position deviation between the steel plate sling 400 and the bottom form hanger 500 through three non-rigid connections, ensuring that the force of the steel plate sling 400 and the bottom form hanger 500 is in an axial tension state.

In other optional embodiments, a first positioning hole 190 may be opened on the upper top plate 110, and two second positioning holes 290 may be opened on the lower top plate 210. When the connecting pin 300 is rotated 90 degrees around its axis so that the two limit rods 320 respectively block the limit blocks 310, the first positioning hole 190 is aligned with the two second positioning holes 290 respectively.

The above-described embodiments are part of the embodiments of the present application, but not all of the embodiments. The detailed description of the embodiments of the application is not intended to limit the scope of the application as claimed, but rather to represent selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Claims (8)

1. The rotatable joint device of the bridge suspension casting hanging basket is characterized by comprising an upper joint, a lower joint and a connecting pin, wherein the upper joint is used for being detachably connected with a steel plate hanging strip, the lower joint is used for being detachably connected with a bottom die hanging frame; the two ends of the connecting pin shaft are respectively connected with the upper joint and the lower joint in a rotating way around the axis of the connecting pin shaft, the bottom of the connecting pin shaft is connected with a limiting block, the lower joint is connected with two limiting rods, and when the lower joint rotates around the axis of the lower joint by 90 degrees, the two limiting rods respectively block the limiting block.

2. The rotatable joint device of the bridge hanging basket according to claim 1, wherein the upper joint comprises an upper top plate provided with an upper connecting hole, a pair of upper lug plates connected with the top of the upper top plate, at least two first stiffening plates with the tops connected with the bottom of the upper top plate, and at least two second stiffening plates with the tops connected with the bottom of the upper top plate, the top of the connecting pin shaft penetrates through the upper connecting hole and then is connected with an upper shaft cap with the bottom propped against the top surface of the upper top plate, two ends of the second stiffening plates are respectively connected with the two first stiffening plates, and first lug plate holes are respectively formed in the two upper lug plates.

3. The rotatable joint device of the bridge hanging basket according to claim 2, wherein at least one upper joint sealing plate is connected to the top of the upper top plate, and two ends of the upper joint sealing plate are respectively connected to the two upper lug plates.

4. The rotatable joint device of the bridge hanging basket according to claim 2, wherein the lower joint comprises a lower top plate provided with a lower connecting hole, a pair of lower lug plates connected with the bottom of the lower top plate, at least two third stiffening plates with the bottoms connected with the top of the lower top plate and at least two fourth stiffening plates with the bottoms connected with the top of the lower top plate, the bottom of the connecting pin shaft penetrates through the lower connecting hole and then is connected with a lower shaft cap with the top pressed against the bottom surface of the lower top plate, two ends of the fourth stiffening plates are respectively connected with the two third stiffening plates, and second lug plate holes are respectively formed in the two lower lug plates; the limiting blocks are connected to the lower shaft caps, and the two limiting rods are connected to the lower top plate.

5. The rotatable joint device of the bridge hanging basket according to claim 4, wherein at least one lower joint sealing plate is connected to the top of the lower top plate, and two ends of the lower joint sealing plate are respectively connected to the two lower ear plates.

6. The rotatable joint device of a bridge suspension casting hanging basket according to claim 4, wherein the upper top plate is provided with at least one first positioning hole for passing through a reinforcing steel bar, and the lower top plate is provided with a plurality of second positioning holes for passing through the reinforcing steel bar; when the connecting pin shaft rotates around the axis of the connecting pin shaft by 90 degrees, at least one first positioning hole is aligned with two second positioning holes respectively.

7. The rotatable joint device of the bridge suspending and pouring basket according to claim 2, wherein an upper waist-shaped hole is formed in one side of the upper top plate, an upper waist-shaped Kong Buhan plate connected with the upper top plate is arranged in the upper waist-shaped hole, and the upper waist-shaped Kong Buhan plate and the inner wall of the upper waist-shaped hole are enclosed to form the upper connecting hole.

8. The rotatable joint assembly of bridge hanging basket as recited in claim 4 wherein a lower kidney-shaped aperture is defined in one side of said lower top plate, a lower kidney-shaped Kong Buhan plate is defined in said lower kidney-shaped aperture for connection to said lower top plate, and said lower kidney-shaped Kong Buhan plate and said lower kidney-shaped aperture inner wall enclose said lower connection aperture.