A hanging basket pre-pressing device for 0# block construction

Abstract

This utility model belongs to the field of bridge construction technology, specifically a preloading device for a hanging basket used in the construction of block 0. It includes: a hanger, a U-shaped frame structure with lifting lugs at each of its four corners; a movable frame with internal cavities for holding multiple counterweights, capable of being supported by the hanger; and a pushing structure mounted on the hanger, capable of pushing the movable frame onto the hanging basket or pulling it back from the hanging basket to the hanger. This utility model has the advantages of more efficient and faster loading and unloading of the hanging basket using counterweights, thus improving the efficiency of preloading detection.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology; specifically, this utility model relates to a hanging basket preloading device for the construction of block 0. Background Technology

[0002] Preloading with the formwork is a crucial step in cantilever casting (such as the formwork construction commonly used in bridge construction). It primarily verifies the safety and reliability of the formwork system, ensuring the stability of subsequent construction. The surcharge method, a common preloading testing method, mainly uses sandbags, water tanks, or reinforcing bars to simulate the weight of concrete, applying loads in stages. Currently, in the surcharge method, the process of placing and removing counterweights from the formwork is done using cranes in conjunction with manual labor, systematically stacking or moving large quantities of counterweights one by one. This method is labor-intensive, inefficient, and involves significant risks associated with prolonged high-altitude work. Utility Model Content

[0003] In view of this, the present invention provides a hanging basket preloading device for the construction of block 0, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objectives, this utility model provides a preloading device for hanging basket construction of block 0, comprising:

[0005] The hanger is designed as a "U"-shaped frame structure, with lifting lugs at all four corners;

[0006] A mobile frame, which has an internal cavity for placing multiple counterweights, and the mobile frame can be supported by a hanger;

[0007] The push structure, mounted on the hanger, is capable of pushing the mobile frame onto the hanging basket or pulling the mobile frame back from the hanging basket onto the hanger.

[0008] In the hanging basket preloading device for the construction of block 0 as described above, optionally, rollers and support legs are respectively provided at the front and rear ends of the bottom of the movable frame. The rollers can roll on the top of the movable frame and inside the hanging frame, and the bottom height of the support legs is the same as the bottom height of the rollers.

[0009] In the preloading device for the construction of block 0 as described above, optionally, the pushing structure includes a lead screw and a pushing rod. The lead screw is rotatably installed on one side of the top of the hanger. One end of the pushing rod is threaded onto the lead screw, and the other end of the pushing rod is slidably engaged with the hanger. The end of the lead screw is connected to a motor installed on the top of the hanger, and one end of the moving frame is provided with a sleeve rod that can be fitted onto the pushing rod from top to bottom.

[0010] In the hanging basket preloading device for the construction of block 0 as described above, optionally, locking frames are fixedly installed at both the front and rear ends of the movable frame, the sleeve rod is fixedly installed on the rear side of the locking frame, locking holes are provided on both sides of the bottom of the locking frame, and a locking rod that can be inserted into the locking hole on the upper locking frame from bottom to top is provided on the side of the locking frame facing the movable frame.

[0011] In the preloading device for the construction of block 0 as described above, optionally, both sides of the locking frame facing the moving frame are rotatably installed with stop bars, and the two stop bars are staggered in the front-back direction. The stop bars can enter between the locking frame and the moving frame located on their side by rotating their outer ends upward.

[0012] In the hanging basket preloading device for the construction of block 0 as described above, optionally, the locking frame is slidably mounted on the movable frame in the height direction. The locking rod includes a first part whose top end can be inserted into a locking hole, a second part whose bottom end can drive the stop bar to rotate, and a third part extending forward from the bottom end of the second part to between the support leg and the bottom of the movable frame. The connection between the first part and the second part is rotatably connected to the locking frame. During the process of the locking frame moving downward relative to the movable frame to the lowest position, the support leg pushes the third part upward, causing the locking rod to swing to the first part being in a vertical state and the second part driving the baffle to rotate to be inserted between the movable frame and the locking frame located on its side.

[0013] In the hanging basket preloading device for the construction of block 0 as described above, optionally, when the locking frame is at its highest position on the moving frame, the distance between the center of the sleeve rod and the bottom of the support leg is less than the distance between the center of the push rod and the inner bottom wall of the hanger.

[0014] In the hanging basket preloading device for the construction of block 0 as described above, optionally, a slope panel is provided at the rear end of the top of the mobile frame, and the height of the slope panel is adapted to the top height of the locking rod on the mobile frame when the first part is in a vertical state.

[0015] In the hanging basket preloading device for the construction of block 0 as described above, optionally, the movable frame is provided with a compartment door on its side, and the compartment door is bolted to the movable frame.

[0016] The preloading device for the No. 0 block construction of this utility model uses a mobile frame that can carry multiple counterweights at one time. The use of a hanger and a pushing structure allows for quick and convenient loading and unloading of the hanging basket. Compared with the existing technology that relies on manual placement of counterweights one by one, this greatly improves the work efficiency of preloading detection of the hanging basket and reduces the construction difficulty. Attached Figure Description

[0017] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the preloading device for the hanging basket during the construction of four adjacent No. 0 blocks according to this utility model.

[0019] Figure 2 This utility model Figure 1 Schematic diagram of the middle hanger;

[0020] Figure 3 This utility model Figure 1 A schematic diagram of a moving frame being pushed by a central hanger with the locking frame on the moving frame at its highest position.

[0021] Figure 4 This is a schematic diagram of the mobile frame of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the hanger of this utility model.

[0023] Reference numerals in the attached drawings: 1-Hanger; 2-Moving frame; 3-Pushing structure; 3.1-Screw; 3.2-Push rod; 3.3-Motor; 4-Roller; 5-Outrigger; 6-Sleeve rod; 7-Locking frame; 8-Locking hole; 9-Locking rod; 9.1-First part; 9.2-Second part; 9.3-Third part; 10-Stop bar; 11-Sloping panel; 12-Door. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 5 As shown, a typical embodiment of this utility model provides a preloading device for the hanging basket during the construction of block 0, comprising:

[0026] Hanger 1 is designed as a "U"-shaped frame structure, with lifting lugs at all four corners;

[0027] The movable frame 2 has an internal cavity for holding multiple counterweights and can be supported by the hanger 1. Multiple counterweights are first stacked in the movable frame 2, and then the hanger 1 is lifted by a crane, allowing for the simultaneous lifting of multiple counterweights and improving the efficiency of counterweight installation during the pre-stressing test of the hanging basket. In practice, the movable frame 2 can enter and exit the hanging basket through two adjacent hanging cables.

[0028] Pushing structure 3, mounted on hanger 1, can push the movable frame 2 onto the hanging basket or pull the movable frame 2 back from the hanging basket onto hanger 1. By using a crane to align the bottom of hanger 1 with the hanging basket, the pushing structure 3 can directly move the movable frame 2, loaded with counterweights, onto the hanging basket. After the hanging basket pre-loading test is completed, the movable frame 2 can be directly pulled back onto hanger 1, thus greatly improving the efficiency of counterweight installation and removal during hanging basket pre-loading.

[0029] The movable frame 2 has rollers 4 at its front and rear ends and support legs 5 at its bottom. The rollers 4 can roll on top of the movable frame 2 and inside the hanging frame 1, and the bottom height of the support legs 5 is the same as the bottom height of the rollers 4. By setting the rollers 4, the movement of the movable frame 2 can be controlled more conveniently and flexibly by the pushing structure 3. In addition, the support legs 5 provide strong stability to the movable frame 2 when it moves to the hanging basket or to the top of another movable frame 2.

[0030] In a relatively specific embodiment, the pushing structure 3 includes a lead screw 3.1 and a pushing rod 3.2. The lead screw 3.1 is rotatably mounted on one side of the top of the hanger 1. One end of the pushing rod 3.2 is threaded onto the lead screw 3.1, and the other end of the pushing rod 3.2 is slidably engaged with the hanger 1. The end of the lead screw 3.1 is connected to a motor 3.3 mounted on the top of the hanger 1. One end of the moving frame 2 is provided with a sleeve 6 that can be fitted onto the pushing rod 3.2 from top to bottom.

[0031] The start motor 3.3 controls the rotation of the lead screw 3.1. The lead screw 3.1 can control the forward or backward displacement of the push rod 3.2 by rotating forward or backward. Specifically, when pushing the movable frame 2 on the hanger 1 onto the hanging basket, the start motor 3.3 can be used to control the lead screw 3.1 to rotate forward. After the movable frame 2 moves to the designated position on the hanging basket, the hanger 1 is lowered using the crane, and the push rod 3.2 can be pulled out from under the sleeve rod 6.

[0032] When removing the movable frame 2 from the hanging basket, first start the motor 3.3 to control the lead screw 3.1 to rotate forward, causing the push rod 3.2 to move to the foremost position of the hanger 1. Then, use the crane to raise the hanger 1, inserting the sleeve rod 6 from bottom to top into the sleeve rod 6. Next, start the motor 3.3 to control the lead screw 3.1 to rotate in reverse, and the push rod 3.2 will directly pull the movable frame 2 from the hanging basket back onto the hanger 1 until the movable frame 2 is completely inside the hanger 1. Then, use the crane to lower the movable frame 2 to the ground.

[0033] The movable frame 2 is fixedly equipped with locking frames 7 at both its front and rear ends. A sleeve rod 6 is fixedly installed on the rear side of the locking frame 7. Locking holes 8 are provided on both sides of the bottom of the locking frame 7. A locking rod 9, which can be inserted from bottom to top into the locking hole 8 on the upper locking frame 7, is provided on the side of the locking frame 7 facing the movable frame 2. By setting up the locking frames 7, locking rod 9, and locking holes 8, when the movable frames 2 are stacked in the height direction on the hanging basket, the locking holes 8 corresponding to the upper movable frame 2 are fitted onto the locking rods 9 corresponding to the lower movable frame 2 from top to bottom. This achieves relative fixation between the vertically distributed movable frames 2 in the front-to-back direction, improving the safety of the hanging basket pre-pressure detection.

[0034] Furthermore, two stop bars 10 are rotatably mounted on both sides of the side of the locking frame 7 facing the movable frame 2. The two stop bars 10 are staggered in the front-back direction. The stop bars 10 can be inserted between the locking frame 7 and the movable frame 2 located on their sides by rotating upwards at their outer ends. By setting the stop bars 10, two adjacent movable frames 2 in the width direction can be relatively fixed in the front-back direction, so that all movable frames 2 on the suspended basket are relatively fixed in the front-back direction, improving the safety of the pre-pressure detection of the suspended basket.

[0035] Furthermore, the locking frame 7 is slidably mounted on the movable frame 2 in the height direction. The locking rod 9 includes a first part 9.1 whose top end can be inserted into the locking hole 8, a second part 9.2 whose bottom end can drive the stop bar 10 to rotate, and a third part 9.3 extending forward from the bottom end of the second part 9.2 to the space between the support leg 5 and the bottom of the movable frame 2. The connection between the first part 9.1 and the second part 9.2 is rotatably connected to the locking frame 7. During the process of the locking frame 7 moving downward relative to the movable frame 2 to the lowest position, the support leg 5 pushes against the third part 9.3, causing the locking rod 9 to swing to the point where the first part 9.1 is in a vertical state and the second part 9.2 drives the baffle to rotate and insert between the movable frame 2 and the locking frame 7 located to its side.

[0036] In this embodiment, when the locking frame 7 is at its highest position on the movable frame 2, that is, when the push rod 3.2 is held at the height of the movable frame 2, the first part 9.1 is tilted to the side at its top, and the stop rod 10 is in its initial position. After the movable frame 2 moves to the designated position, during the process of the push rod 3.2 moving downward to disengage from the sleeve rod 6, the locking frame 7 is displaced downward by gravity. At this time, the third part 9.3 is blocked by the support leg 5, and the support leg 5 drives the locking rod 9 to rotate. After the locking rod 9 rotates, the first part 9.1 is in a vertical state, waiting to be fitted with the corresponding locking hole 8 of the movable frame 2 that is about to be placed above the movable frame 2, while the stop rod 10 is inserted between the movable frame 2 and the locking frame 7 located to its side. Furthermore, during the stacking of the movable frames 2, the weight of the locking frame 7 itself can be used to achieve relative fixation between two adjacent movable frames 2 in the left-right direction and the height direction.

[0037] Specifically, when the locking frame 7 is at its highest position on the movable frame 2, the distance between the center of the sleeve rod 6 and the bottom of the support leg 5 is less than the distance between the center of the push rod 3.2 and the inner bottom wall of the hanger 1. This arrangement ensures that during the process of the push rod 3.2 pushing the movable frame 2, the movable frame 2 is tilted upward at one end of the support leg 5, making the bottom height of the support leg 5 greater than the bottom height of the roller 4, thereby preventing the support leg 5 from scraping.

[0038] The movable frame 2 has a sloping panel 11 at its rear end, and the height of the sloping panel 11 is adapted to the top height of the locking rod 9 on the movable frame 2 when the first part 9.1 is in a vertical state. Specifically, in this embodiment, the sloping panel 11 is located within the range of the support leg 5 in the width direction of the movable frame 2. Since the first part 9.1 of the locking rod 9 is in a vertical state after the movable frame 2 is placed on the hanging basket, the top height of the locking rod 9 is greater than the height of the movable frame 2. Therefore, by setting the sloping panel 11, when the movable frames 2 are stacked in the height direction, the movable frame 2 located above will not be blocked by the top of the locking rod 9 during its movement from the hanger 1 to the top of the movable frame 2 located below, allowing it to pass the top of the locking rod 9 and fall onto the top of the movable frame 2 located below through the sloping panel 11.

[0039] More specifically, when stacking the mobile frame 2 in the height direction, the height of the inner bottom wall of the hanger 1 is first made greater than the top height of the slope panel 11. At this height, the mobile frame 2 on the hanger 1 is pushed to the top of the mobile frame 2 located below using the pushing structure 3. After the mobile frame 2 on the hanger 1 is pushed to the mobile frame 2 located below, the hanger 1 continues to descend, so that the support leg 5 of the upper mobile frame 2 is supported on the top of the lower mobile frame 2.

[0040] The movable frame 2 is provided with a compartment door 12 on its side, and the compartment door 12 is bolted to the movable frame 2. By opening the compartment door 12, it is easy to put the counterweight into or take out the movable frame 2.

[0041] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A hanging basket pre-pressing device for 0# block construction, characterized in that, include: The hanger (1) is set as a "U"-shaped frame structure, with lifting lugs at all four corners; The movable frame (2) has a cavity inside for placing multiple counterweights, and the movable frame (2) can be supported by the hanger (1); The push structure (3) is set on the hanger (1) and can push the mobile frame (2) onto the hanging basket or pull the mobile frame (2) back from the hanging basket onto the hanger (1).

2. The hanging basket pre-pressing device for No. 0 block construction according to claim 1, characterized in that, The bottom of the mobile frame (2) is provided with rollers (4) and support legs (5) at the front and rear ends respectively. The rollers (4) can roll on the top of the mobile frame (2) and inside the hanger (1). The bottom height of the support legs (5) is the same as the bottom height of the rollers (4).

3. The pre-pressing device for the hanging basket of the No. 0 block construction according to claim 1, characterized in that, The pushing structure (3) includes a lead screw (3.1) and a pushing rod (3.2). The lead screw (3.1) is rotatably mounted on one side of the top of the hanger (1). One end of the pushing rod (3.2) is threaded onto the lead screw (3.1), and the other end of the pushing rod (3.2) is slidably engaged with the hanger (1). The end of the lead screw (3.1) is connected to a motor (3.3) mounted on the top of the hanger (1). One end of the moving frame (2) is provided with a sleeve (6) that can be fitted onto the pushing rod (3.2) from top to bottom.

4. The pre-pressing device for the hanging basket of the No. 0 block construction according to claim 3, characterized in that, Locking frames (7) are fixedly installed at both the front and rear ends of the movable frame (2). The sleeve rod (6) is fixedly installed on the rear side of the locking frame (7). Locking holes (8) are provided on both sides of the bottom of the locking frame (7). A locking rod (9) is provided on the side of the locking frame (7) facing the movable frame (2) that can be inserted into the locking hole (8) of the upper locking frame (7) from bottom to top.

5. The pre-pressing device for the hanging basket of the No. 0 block construction according to claim 4, characterized in that, The locking frame (7) has two stops (10) rotatably mounted on both sides of one side facing the moving frame (2). The two stops (10) are staggered in the front-back direction. The stops (10) can enter between the locking frame (7) and the moving frame (2) located on its side by rotating the outer end upward.

6. The pre-pressing device for the hanging basket of the No. 0 block construction according to claim 5, characterized in that, The locking frame (7) is slidably mounted on the movable frame (2) in the height direction. The locking rod (9) includes a first part (9.1) whose top end can be inserted into the lock hole (8), a second part (9.2) whose bottom end can drive the stop bar (10) to rotate, and a third part (9.3) extending forward from the bottom end of the second part (9.2) to the bottom between the support leg (5) and the movable frame (2). The connection between the first part (9.1) and the second part (9.2) is rotatably connected to the locking frame (7). During the process of the locking frame (7) moving downward relative to the movable frame (2) to the lowest position, the support leg (5) pushes the third part (9.3) upward, causing the locking rod (9) to swing to the first part (9.1) in a vertical state and the second part (9.2) to drive the stop bar to rotate to be inserted between the movable frame (2) and the locking frame (7) located to its side.

7. The pre-pressing device for the hanging basket of the No. 0 block construction according to claim 6, characterized in that, When the locking frame (7) is in its highest position on the moving frame (2), the distance between the center of the sleeve rod (6) and the bottom of the support leg (5) is less than the distance between the center of the push rod (3.2) and the inner bottom wall of the hanger (1).

8. The pre-pressing device for the hanging basket of the No. 0 block construction according to claim 7, characterized in that, The rear end of the top of the mobile frame (2) is provided with a slope panel (11), and the height of the slope panel (11) is adapted to the top height of the locking rod (9) on the mobile frame (2) when the first part (9.1) is in a vertical state.

9. The pre-pressing device for the hanging basket of the No. 0 block construction according to claim 1, characterized in that, The movable frame (2) is provided with a compartment door (12) on its side, and the compartment door (12) is bolted to the movable frame (2).

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