Integral lifting and lowering device for integrated bent cap

Abstract

The invention provides an integrated bent cap overall lifting and lowering device which comprises a lifting body, an adjusting mechanism, an inclination amount detection mechanism, a first inclination amount, a pressure recognition assembly, a suspension, an elastic telescopic end, a swing rod and a pressure sensor. According to the invention, the suspension is arranged, when the lifted object is inclined, the adjusting mechanism aims to adjust the first inclination amount to 0, so that the lifted object is leveled, in the process, even if the inclination amount of the lifted object 3 is very small, the inclination amount can be amplified by the suspension, and the inclination amount is more obviously amplified along with the fact that the elastic telescopic end is more downward and closer to the bottom of the suspension; therefore, the detection precision of whether the capping beam is in the horizontal state or not is improved, and the problem that when the capping beam inclines slightly in the past, the first inclination amount is not enough to enable the gravity ball to slide out of the retention groove, so that the prompting lamp is still turned on, and the capping beam is misjudged to be in the horizontal state all the time is solved.

Description

Technical Field

[0001] This invention relates to the field of cap beam installation technology, specifically to an integrated cap beam lifting and lowering device. Background Technology

[0002] A cap beam is a reinforced concrete or lightly reinforced concrete beam installed on a pier column to support, distribute, and transfer the load of the superstructure. To expedite construction, some construction sites prefabricate cap beams in a factory, creating precast cap beams. These precast cap beams have pre-drilled holes on their lower surface, and exposed embedded reinforcing bars on the top of the pier column. During construction, hoisting equipment lifts the precast cap beam. When the pre-drilled holes align with the embedded reinforcing bars at the end of the pier column, the precast cap beam is lowered, allowing the embedded reinforcing bars to pass through the pre-drilled holes. The holes are then filled with grout to ensure a tight connection between the precast cap beam and the pier column. During this process, the precast cap beam must be horizontal to ensure the embedded reinforcing bars can be smoothly inserted into the pre-drilled holes. However, adjusting the level of the precast cap beam using existing hoisting equipment is typically done visually, which is difficult and time-consuming.

[0003] To address the aforementioned issues, patent application number 202311291120.7 discloses a precast cap beam hoisting device and method. In this patent, a gravity ball, an electrical contact assembly, and an indicator light work together, allowing workers to determine whether the hoisting rail is horizontal by observing the indicator light, thus determining whether the precast cap beam is horizontal. However, in this technical solution, the gravity ball needs to fall into the retention groove before the indicator light is activated by the electrical contact assembly. Therefore, when the cap beam tilts slightly, the initial tilt is insufficient to allow the gravity ball to slide out of the retention groove, causing the indicator light to remain lit, leading to errors in determining whether the cap beam is horizontal. Therefore, a more precise lifting and lowering device for determining whether a cap beam is horizontal is urgently needed to solve the problems existing in the prior art. Summary of the Invention

[0004] The purpose of this invention is to design an integrated lifting and lowering device for cap beams to solve the problems raised in the background art. To achieve the above objective, this invention provides the following technical solution: It includes a lifting body, an adjusting mechanism, and a tilt detection mechanism; the tilt detection mechanism is detachably installed on the lifted object, and is used to detect a first tilt of the lifted object and transmit the first tilt to the adjusting mechanism; the adjusting mechanism is located on the lifting body; the tilt detection mechanism includes two pressure recognition components and a suspension, the two pressure recognition components are located on both sides of the suspension, and the elastic telescopic ends of the two pressure recognition components are connected to the swing rod of the suspension; when the lifted object tilts, the suspension compresses one elastic telescopic end while releasing the other elastic telescopic end; the pressure recognition component is provided with a pressure sensor for recognizing the elastic force received by the elastic telescopic end, the difference 'a' between the two pressure sensors is the first tilt, and the adjusting mechanism levels the lifted object based on the first tilt.

[0005] Furthermore, the tilt detection mechanism includes a support frame mounted on the end face of the object being lifted via a clamping assembly. The top plate of the support frame is parallel to the end face of the object being lifted. A suspension that is always vertical under its own weight is movably connected to the top plate. The pressure recognition component is connected to the support rod of the support frame.

[0006] Furthermore, the suspension includes a vertical rod movably connected to the top plate and a pendulum cone fixed to the bottom of the vertical rod. The pressure recognition component includes a support cylinder connected to the support rod and a sliding rod slidably connected to the support cylinder. A compression spring is provided between the end of the sliding rod located inside the support cylinder and the bottom of the support cylinder. A pressure sensor for detecting the elastic force of the compression spring is provided at the bottom of the support cylinder. The end of the sliding rod opposite to the compression spring extends out of the support cylinder and is connected to the vertical rod.

[0007] Furthermore, the vertical rod is provided with a sliding groove, and a slider is slidably connected to the sliding groove. The sliding rod is connected to the slider via a universal ball joint. Alternatively; the vertical rod is provided with a groove, and a universal ball is installed at the end of the sliding rod away from the compression spring, with the spherical surface of the universal ball located inside the groove; Alternatively, the support cylinder is connected to the support rod via a universal ball joint, and the end of the sliding rod is connected to the vertical rod via a universal ball joint.

[0008] Furthermore, when the sliding rod is connected to the slider via a universal ball joint or the end of the sliding rod is connected to the vertical rod via a universal ball joint; the suspension is connected to the top plate via a universal ball joint; four grooves are circumferentially distributed on the vertical rod; four pressure recognition components are connected to the vertical rod; when the lifted object does not tilt, the four pressure recognition components are in a cross shape.

[0009] Furthermore, the support cylinder is rotatably connected to the support rod.

[0010] Furthermore, the object being lifted has a second tilt amount. When the first tilt amount is detected, the tilt direction of the object being lifted is perpendicular to the tilt direction of the object being lifted when the second tilt amount is detected. The clamping assembly is provided with a rotating rod, and a winding belt is connected to the rotating rod. The lifting body is also provided with a winding device for winding and unwinding the winding belt. The winding device adjusts the second tilt amount by winding the winding belt.

[0011] Furthermore, let D be the height between the axis of the sliding rod and the center of motion of the vertical rod; let F0 be the pressure of the compression spring when the object being lifted is in a horizontal state; let A be the maximum angle between the vertical rod and the vertical direction when the object being lifted is in an inclined state; and let G be the weight of the pendulum cone satisfying: .

[0012] Furthermore, let the weight of the vertical rod be G0 and the weight of the pendulum cone be G, then 5≤G / G0≤10.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is equipped with a suspension. When the lifted object tilts, the adjustment mechanism aims to adjust the first tilt amount to 0, thereby leveling the lifted object. In this process, even if the tilt amount of the lifted object 3 is very small, the suspension can amplify the tilt amount. Moreover, as the elastic extension end goes downward and gets closer to the bottom of the suspension, the tilt amount is amplified more significantly. Therefore, the present invention improves the detection accuracy of whether the cap beam is in a horizontal state and eliminates the problem that in the past, when the cap beam tilted slightly, the first tilt amount was insufficient to make the gravity ball slide out of the retention groove, causing the indicator light to remain on and misjudging that the cap beam was always in a horizontal state. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partially enlarged schematic diagram of the present invention; Figure 3 This is a cross-sectional schematic diagram of the pressure recognition component in this invention.

[0016] The components include: 1. Lifting body; 2. Adjustment mechanism; 3. Lifting object; 4. Tensioner assembly; 5. Rotating rod; 6. Winding belt; 7. Pressure recognition assembly; 8. Top plate; 9. Vertical rod; 10. Support rod; 11. Swing cone; 12. Compression spring; 13. Sliding rod; 14. Slide groove; 15. Sliding block; 16. Support cylinder. Detailed Implementation

[0017] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0018] Example: Please refer to Figure 1-3 The integrated cap beam lifting and lowering device includes a lifting body 1, an adjusting mechanism 2, and an inclination detection mechanism. The inclination detection mechanism is detachably installed on the lifted object 3 and is used to detect the first inclination of the lifted object 3 and transmit the first inclination to the adjusting mechanism 2. The adjusting mechanism 2 is located on the lifting body 1 and can adopt a common wire rope adjustment method. One end of the wire rope is connected to the lifted object 3, and the other end is connected to a winch through a gear set. The winch retracts and extends the wire rope to achieve the lifting of the end of the lifted object 3. The tilt detection mechanism includes two pressure recognition components 7 and a suspension. For example, the suspension is connected by a bearing rotation connection, and the rotation direction is the tilt direction of the lifted object 3. Alternatively, the suspension is connected by a universal ball joint and a limiting groove, which limits the suspension to swing only along the tilt direction of the lifted object 3. When the lifted object 3 is moving at a constant speed or is stationary, the suspension is vertical under the action of gravity. At this time, if the lifted object 3 tilts, the suspension will swing at a certain angle relative to the lifted object 3 when it is not tilted. The size of the swing angle is the tilt angle of the lifted object 3. Two pressure recognition components 7 are located on both sides of the suspension. The elastic telescopic ends of both pressure recognition components 7 are connected to the swing rod of the suspension. When the lifted object 3 tilts, the suspension will compress one elastic telescopic end while releasing the other elastic telescopic end. The pressure recognition component 7 is equipped with a pressure sensor for recognizing the elastic force on the elastic telescopic end. The difference 'a' between the two pressure sensors is the first tilt amount. The adjustment mechanism 2 levels the lifted object 3 through the first tilt amount. The pressure sensors and the two winches are electrically connected to the control module. The two pressure sensors send the measured pressure to the control module. The control module obtains the difference 'a' between the two values. When 'a' equals 0, it means that the elongation of the two elastic telescopic ends is the same, the suspension has not swung, the lifted object 3 has not tilted, and it is not necessary to start the winch. When 'a' is not equal to 0, the controller starts one of the winches to make 'a' approach 0, thereby achieving the leveling of the lifted object 3. During this process, even if the tilt of the lifted object 3 is very small, the suspension can amplify the tilt, and the tilt is amplified more significantly as the elastic extension end goes downward and gets closer to the bottom of the suspension. Therefore, this invention improves the detection accuracy of whether the cap beam is in a horizontal state, and eliminates the problem that when the cap beam tilts slightly, the first tilt is insufficient to make the gravity ball slide out of the retention groove, causing the indicator light to remain on and misjudging that the cap beam is always in a horizontal state. In addition, the lifting body 1 is also equipped with an indicator light, which is connected to the control module. When a equals 0, the controller controls the indicator light to light up to remind the staff.

[0019] In this embodiment, the tilt detection mechanism includes a support frame mounted on the end face of the lifted object 3 via a clamping assembly 4. The clamping assembly 4 can be a conventional and readily available clamping assembly, which only needs to clamp the tilt detection mechanism onto the lifted object 3 and then open and release the lifted object 3. This will not be described in detail here. The top plate 8 of the support frame is parallel to the end face of the lifted object 3. A suspension that is always vertical under its own weight is movably connected to the top plate 8. A pressure recognition assembly 7 is connected to the support rod 10 of the support frame. The suspension includes a vertical rod 9 movably connected to the top plate 8 and a pendulum cone 11 fixed to the bottom of the vertical rod 9. The pendulum cone 11 is made of metal, and the vertical rod 9 is made of lightweight plastic, thereby ensuring that the pendulum cone 11 can always maintain a vertical direction under its own weight. The pressure recognition component 7 includes a support cylinder 16 connected to the support rod 10 and a sliding rod 13 slidably connected to the support cylinder 16. A compression spring 12 is provided between the end of the sliding rod 13 located inside the support cylinder 16 and the bottom of the support cylinder 16. A pressure sensor for detecting the elastic force of the compression spring 12 is provided at the bottom of the support cylinder 16. The end of the sliding rod 13 away from the compression spring 12 passes through the support cylinder 16 and is connected to the vertical rod 9. The vertical rod 9 and the sliding rod 13 can be connected in three ways: First, the vertical rod 9 has a groove 14, and a slider 15 is slidably connected to the groove 14. The sliding rod 13 is connected to the slider 15 through a universal ball joint, and the support cylinder 16 is rotatably connected to the support rod 10; Second, the vertical rod 9 has a groove 14, and a slider 15 is slidably connected to the groove 14. The sliding rod 13 is connected to the slider 15 through a universal ball joint, and the support cylinder 16 is rotatably connected to the support rod 10; Third, the vertical rod 13 has a groove 14, and a slider 15 is slidably connected to the support rod 10. The rod 9 is provided with a groove 14, and a universal ball is installed at the end of the sliding rod 13 away from the compression spring 12. The spherical surface of the universal ball is located inside the groove 14. Thirdly, the support cylinder 16 is connected to the support rod 10 through a universal ball joint, and the end of the sliding rod 13 is connected to the vertical rod 9 through a universal ball joint. Preferably, the first installation method is used in this embodiment, which has higher accuracy. Both use the form of compression spring 12. When the lifted object 3 tilts, the compression spring 12 on one side is compressed, and the compression spring 12 on the other side is released. At this time, the difference a between the two pressure sensors is calculated. Compared with judging the tilt of the lifted object 3 by only targeting one side of the pressure sensor, the tilt of the lifted object 3 is more accurate and more sensitive by using the difference a.

[0020] When the vertical rod 9 and the sliding rod 13 are connected in the first way, the suspension is connected to the top plate 8 through a universal ball joint. Four circumferentially distributed sliding grooves 14 are provided on the vertical rod 9. Four pressure recognition components 7 are connected to the vertical rod 9. When the lifted object 3 does not tilt, the four pressure recognition components 7 are in a cross shape. There is a second tilt amount on the lifted object 3. When the first tilt amount is detected, the tilt direction of the lifted object 3 is perpendicular to the tilt direction of the lifted object 3 when the second tilt amount is detected. The tensioning assembly 4 is provided with a rotating rod 5. The rotating rod 5 is connected with a winding belt 6. The lifting body 1 is also provided with a retractor for winding and unwinding the winding belt 6. The retractor is used to adjust the second tilt amount by winding and unwinding the winding belt 6, so that when the lifted object 3 tilts in another direction, the tilt can be corrected, thereby further ensuring the level of the lifted object 3.

[0021] In this embodiment, the height between the axis of the sliding rod 13 and the center of motion of the vertical rod 9 is taken as D; the pressure of the compression spring 12 is assumed to be F0 when the lifted object 3 is in a horizontal state; the maximum angle between the vertical rod 9 and the vertical direction is taken as A when the lifted object 3 is in an inclined state; the weight G of the pendulum cone 11 satisfies: 2.5K≤G≤5K, where, Therefore, when 2.5K ≤ G ≤ 5K, it means that when the vertical rod 9 is tilted, the theoretical component of the pendulum cone 11 along the sliding rod 13 is 2.5-5 times the actual force on the compression spring 12. This ensures that the pendulum cone 11 fully compresses the compression spring 12, preventing insufficient compression force that could cause the vertical rod 9 to be not vertical, leading to errors in tilt detection. Experiments show that when G is less than 2.5K, because the theoretical component of the pendulum cone 11 along the sliding rod 13 is too close to the actual force on the compression spring 12, the pendulum cone 11 is easily affected by external interference (such as wind), leading to swaying of the vertical rod 9 and inaccurate tilt detection. However, when G is greater than 5K, it means that the difference between the theoretical component of the pendulum cone 11 along the sliding rod 13 and the actual force on the compression spring 12 is too large, making it prone to inertia of the pendulum cone 11. The constant swaying leads to excessively long tilt detection time and affects its accuracy. Therefore, in this embodiment, G=3.75K is preferred. At this value, the pendulum cone 11 is not easily affected by external interference and is also less prone to constant swaying due to its own inertia. In addition, let the weight of the vertical rod 9 be G0 and the weight of the pendulum cone 11 be G. Therefore, 5≤G / G0≤10, which greatly concentrates the center of gravity of the suspension on the pendulum cone 11. This is beneficial to maintaining the vertical state of the vertical rod 9 and can also prevent the vertical rod 9 from breaking due to long-term high-strength tension when G / G0 is greater than 10. Preferably, in this embodiment, G / G0=7.5 is taken, which can ensure the vertical state of the vertical rod 9 and improve the service life of the vertical rod 9.

[0022] Working principle: When the lifted object 3 tilts, the adjusting mechanism 2 adjusts the first tilt amount to 0, thereby leveling the lifted object 3. During this process, even if the tilt amount of the lifted object 3 is very small, the suspension can amplify the first tilt amount. As the elastic extension end goes down and gets closer to the bottom of the suspension, the first tilt amount is amplified more significantly. Therefore, this invention improves the detection accuracy of whether the cap beam is in a horizontal state and eliminates the problem that when the cap beam tilts slightly, the first tilt amount is insufficient to make the gravity ball slide out of the retention groove, causing the indicator light to remain on and misjudging that the cap beam is always in a horizontal state.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An integrated cap beam lifting and lowering device, characterized in that: The system includes a lifting body (1), an adjustment mechanism (2), and a tilt detection mechanism. The tilt detection mechanism is detachably installed on the object being lifted (3) and is used to detect the first tilt of the object being lifted (3) and transmit the first tilt to the adjustment mechanism (2). The adjustment mechanism (2) is located on the lifting body (1). The tilt detection mechanism includes two pressure recognition components (7) and a suspension. The two pressure recognition components (7) are located on both sides of the suspension, and the elastic extension ends of the two pressure recognition components (7) are connected to the swing rod of the suspension. When the object being lifted (3) tilts, the suspension will compress one elastic extension end while releasing the other elastic extension end. The pressure recognition component (7) is provided with a pressure sensor for recognizing the elastic force received by the elastic extension end. The difference a between the two pressure sensors is the first tilt. The adjustment mechanism (2) adjusts the object being lifted (3) by the first tilt.

2. The integrated cap beam lifting and lowering device according to claim 1, characterized in that: The tilt detection mechanism includes a support frame mounted on the end face of the object being lifted (3) via a clamping assembly (4). The top plate (8) of the support frame is parallel to the end face of the object being lifted (3). The top plate (8) is movably connected to the suspension that is always vertical under its own weight. The pressure recognition assembly (7) is connected to the support rod (10) of the support frame.

3. The integrated cap beam lifting and lowering device according to claim 2, characterized in that: The suspension includes a vertical rod (9) movably connected to the top plate (8) and a pendulum cone (11) fixed to the bottom of the vertical rod (9). The pressure recognition component (7) includes a support cylinder (16) connected to the support rod (10) and a sliding rod (13) slidably connected to the support cylinder (16). A compression spring (12) is provided between the end of the sliding rod (13) inside the support cylinder (16) and the bottom of the support cylinder (16). A pressure sensor for detecting the elastic force of the compression spring (12) is provided at the bottom of the support cylinder (16). The end of the sliding rod (13) away from the compression spring (12) passes through the support cylinder (16) and is connected to the vertical rod (9).

4. The integrated cap beam lifting and lowering device according to claim 3, characterized in that: The vertical rod (9) is provided with a sliding groove (14), and a slider (15) is slidably connected to the sliding groove (14). The sliding rod (13) is connected to the slider (15) through a universal ball joint. Alternatively; the vertical rod (9) is provided with a groove (14), and a universal ball is installed at the end of the sliding rod (13) away from the compression spring (12), and the spherical surface of the universal ball is located inside the groove (14); Alternatively, the support cylinder (16) is connected to the support rod (10) via a universal ball joint, and the end of the sliding rod (13) is connected to the vertical rod (9) via a universal ball joint.

5. The integrated cap beam lifting and lowering device according to claim 4, characterized in that: When the sliding rod (13) is connected to the slider (15) via a universal ball joint or when the end of the sliding rod (13) is connected to the vertical rod (9) via a universal ball joint; the suspension is connected to the top plate (8) via a universal ball joint; four grooves (14) are circumferentially distributed on the vertical rod (9); four pressure recognition components (7) are connected on the vertical rod (9); when the hoisted object (3) does not tilt, the four pressure recognition components (7) are in a cross shape.

6. The integrated cap beam lifting and lowering device according to claim 5, characterized in that: The support cylinder (16) is rotatably connected to the support rod (10).

7. The integrated cap beam lifting and lowering device according to claim 5, characterized in that: The lifting object (3) has a second tilt amount. When the first tilt amount is detected, the tilt direction of the lifting object (3) is perpendicular to the tilt direction of the lifting object (3) when the second tilt amount is detected. The clamping assembly (4) is provided with a rotating rod (5). A winding belt (6) is connected to the rotating rod (5). The lifting body (1) is also provided with a winding device for winding and unwinding the winding belt (6). The winding device is used to adjust the second tilt amount by winding the winding belt (6).

8. The integrated cap beam lifting and lowering device according to claim 5, characterized in that: Let D be the height between the axis of the sliding rod (13) and the center of motion of the vertical rod (9); let F0 be the pressure of the compression spring (12) when the object being lifted (3) is in a horizontal state; let A be the maximum angle between the vertical rod (9) and the vertical direction when the object being lifted (3) is in an inclined state; and let G be the weight of the pendulum cone (11) satisfying: .

9. The integrated cap beam lifting and lowering device according to claim 5 or 8, characterized in that: Let the weight of the vertical rod (9) be G0 and the weight of the pendulum cone (11) be G, then 5≤G / G0≤10.

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