Simple long-strip-shaped reinforcement cage hoisting device with early warning function

Abstract

The utility model discloses a simple device with an early warning function for hoisting a long-strip-shaped steel reinforcement framework, and relates to the technical field of constructional engineering, the device is characterized in that a lower structure of a hoisting frame comprises two first supporting structures arranged in parallel and a plurality of second supporting structures; the plurality of second supporting structures are uniformly arranged between the two first supporting structures; the triangular support is connected with part of the second supporting structure through the inclined support. The stress sensor is installed on the bevel edge of the triangular support, the PVDF piezoelectric film sensor is installed in the lower structure of the hanging bracket, the PVDF piezoelectric film sensor is connected with the power storage unit through the charging circuit, and the warning unit is connected with the stress sensor and the power storage unit. An elastic connecting piece is arranged on the PVDF piezoelectric film sensor, the elastic connecting piece is connected with the cross rod, a plurality of hanging rings are arranged below the hanging bracket lower structure, and each hanging ring is connected with the cross rod; according to the utility model, the early warning device can work continuously while alarm prompt is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a simple device for hoisting a long strip steel bar skeleton with an early warning function. Background Art

[0002] In recent years, the development of my country's infrastructure has been increasingly rapid. With the development, due to the requirements of precision, quality and progress, how to quickly tie and form steel bars with quality and quantity is an issue worthy of in-depth study. In view of the above situation, the existing solution is: the bottom web and top plate steel bars are tied as a whole on their own self-made tire frames, and the hoisting is carried out in sections, and the final connection of the steel bars is completed on the formwork of the beam-making pedestal. The use of the tire not only ensures the linear shape of the steel bar binding, but also greatly increases the operating space for workers, reduces the construction time on the formwork, shortens the occupation time of the formwork, and increases the speed of beam making; however, the weight of the overall tied tire is relatively large. How to ensure the safety of construction workers when hoisting the tire has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] Based on this, it is necessary to provide a simple device for lifting long steel bar skeletons with an early warning function to solve the technical problem of how to ensure the safety of construction workers when lifting the tire.

[0004] Based on the above purpose, a simple device for lifting a long steel bar skeleton with an early warning function comprises: a hanger upper structure, a hanger lower structure and an early warning device, wherein the hanger upper structure is arranged above the hanger lower structure;

[0005] The upper structure of the hanger includes: a triangular support and a plurality of diagonal supports, and the lower structure of the hanger includes two parallel first support structures and a plurality of second support structures; the plurality of second support structures are evenly arranged between the two first support structures; the triangular support is connected to part of the second support structures through the diagonal support;

[0006] The early warning device includes: a stress sensor, a PVDF piezoelectric film sensor, an alarm unit and a power storage unit; wherein, the stress sensor is installed on the hypotenuse of the triangular support, the PVDF piezoelectric film sensor is installed in the lower structure of the hanger, the PVDF piezoelectric film sensor is connected to the power storage unit through a charging circuit, and the alarm unit is connected to the stress sensor and the power storage unit; an elastic connector is provided on the PVDF piezoelectric film sensor, the elastic connector is connected to the cross bar, and a plurality of hanging rings are provided below the lower structure of the hanger, and each hanging ring is connected to the cross bar.

[0007] Optionally, the charging circuit includes: capacitor C1, capacitor C2, capacitor C3, capacitor C4, resistor R and operational amplifier G; wherein, one end of the PVDF piezoelectric film sensor is connected to one end of the power storage unit, the other end of the PVDF piezoelectric film sensor is connected to the input end of the operational amplifier, and the output end of the operational amplifier is connected to the other end of the power storage unit; capacitor C1, capacitor C2 and capacitor C3 are respectively connected in parallel with the PVDF piezoelectric film sensor; capacitor C4 and resistor R are connected in parallel with the operational amplifier G.

[0008] Optionally, the lower structure of the hanger also includes a PVDF piezoelectric film sensor support platform; the PVDF piezoelectric film sensor support platform is connected to two parallel first support structures, and the upper surface of the PVDF piezoelectric film sensor support platform is used to place the PVDF piezoelectric film sensor.

[0009] Optionally, the elastic connecting member includes a spring.

[0010] Optionally, the power storage unit includes a lithium battery.

[0011] Optionally, the device further comprises: a lifting ring; wherein the lifting ring is arranged at the top end of the triangular support.

[0012] Optionally, the material of the first supporting structure includes an I-beam; and the material of the triangular support includes a channel steel.

[0013] Optionally, the second supporting structure is triangular, and the second supporting structure includes channel steel.

[0014] The above scheme has the following beneficial effects:

[0015] The utility model discloses a simple device for lifting a long steel bar skeleton with an early warning function. The lower structure of the hanger comprises two first supporting structures and a plurality of second supporting structures which are arranged in parallel. The plurality of second supporting structures are evenly arranged between the two first supporting structures. The triangular support is connected to part of the second supporting structures through an oblique support. The stress sensor is installed on the hypotenuse of the triangular support, and the PVDF piezoelectric film sensor is installed in the lower structure of the hanger. The PVDF piezoelectric film sensor is connected to the power storage unit through a charging circuit, and the warning unit is connected to the stress sensor and the power storage unit. The PVDF piezoelectric film sensor is provided with an elastic connector which is connected to a cross bar. A plurality of hanging rings are provided below the lower structure of the hanger, and each hanging ring is connected to the cross bar. Each time the weight is lifted, the stress sensor detects the stress change of the triangular support. When the stress change reaches a threshold value, an alarm is issued through the early warning device. Meanwhile, when the weight is lifted, the heavy object presses the PVDF piezoelectric film sensor to generate electric energy, and the power storage unit is charged through the charging circuit, so that the early warning device can work continuously while realizing the alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of a simple device for lifting a long steel bar skeleton with an early warning function provided in one embodiment of the utility model;

[0018] Figure 2 It is a side view of a simple device for lifting a long steel bar skeleton with an early warning function provided in one embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of an early warning device provided in one embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a charging circuit provided in one embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of an alarm unit provided in one embodiment of the utility model;

[0022] The symbols are explained as follows:

[0023] 1. Triangle support; 2. Diagonal support; 3. First supporting structure; 4. Second supporting structure; 5. Stress sensor; 6. Lifting ring; 7. Hanging ring; 8. Warning unit; 9. Cross bar; 10. PVDF piezoelectric film sensor support platform; 11. Speaker; 12. Warning light; Q. PVDF piezoelectric film sensor; U. Power storage unit. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] It should be understood that the embodiments set forth below represent the necessary information to enable those skilled in the art to implement the embodiments and illustrate the best mode for implementing the embodiments. After reading the following description in light of the accompanying drawings, those skilled in the art will understand the concepts of the present disclosure and will recognize applications of these concepts not specifically mentioned herein. It should be understood that these concepts and applications fall within the scope of the present disclosure and the appended claims.

[0026] It should also be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element without departing from the scope of the present disclosure. As used herein, the term "and / or" includes any and all combinations of one or more related listed items.

[0027] It should also be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or intervening elements may be present. Conversely, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements.

[0028] It should also be understood that the terms "upper", "lower", "left", "right", "front", "back", "bottom", "middle", "middle", "top", etc. may be used herein to describe various elements, and the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore these elements should not be limited by these terms.

[0029] These terms are only used to distinguish one element from another element. For example, a first element can be referred to as an "upper" element, and similarly, a second element can be referred to as an "upper" element according to the relative orientation of these elements without departing from the scope of the present disclosure.

[0030] It is further understood that the terms “comprises,” “includes,” “including” and / or “comprising” when used herein specify the presence of stated features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0031] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. It will be further understood that the terms used herein should be interpreted as having a meaning consistent with their meaning in the context of this specification and the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0032] In one embodiment, a method is provided as follows Figure 1The simple device for lifting a long steel bar frame with an early warning function shown in the figure comprises: a hanger upper structure, a hanger lower structure and an early warning device, wherein the hanger upper structure is arranged above the hanger lower structure;

[0033] The upper structure of the hanger includes: a triangular support 1 and a plurality of diagonal supports 2, and the lower structure of the hanger includes two parallel first support structures 3 and a plurality of second support structures 4; the plurality of second support structures 4 are evenly arranged between the two first support structures 3; the triangular support 1 is connected to part of the second support structure 4 through the diagonal support 2; Figure 2 As shown, the triangular support 1 is a relatively large triangular structure, and the diagonal support splits the triangular support into several smaller triangular structures, thereby making the simple device for lifting long steel bar skeleton with early warning function more stable.

[0034] like Figure 3 As shown, the early warning device includes: a stress sensor 5, a PVDF piezoelectric film sensor Q, an alarm unit 8 and a power storage unit U; wherein, the stress sensor 5 is installed on the hypotenuse of the triangular support 1, the PVDF piezoelectric film sensor Q is installed in the lower structure of the hanger, the PVDF piezoelectric film sensor Q is connected to the power storage unit U through a charging circuit, and the alarm unit 8 is connected to the stress sensor 5 and the power storage unit U; an elastic connector is provided on the PVDF piezoelectric film sensor Q, the elastic connector is connected to the cross bar 9, and a plurality of hanging rings 7 are provided below the lower structure of the hanger, each hanging ring 7 is connected to the cross bar 9; a plurality of hanging rings 7 are provided for hanging a rectangular steel skeleton.

[0035] like Figure 4 As shown, the charging circuit includes: capacitor C1, capacitor C2, capacitor C3, capacitor C4, resistor R and operational amplifier G; wherein, one end of the PVDF piezoelectric film sensor Q is connected to one end of the power storage unit U, the other end of the PVDF piezoelectric film sensor Q is connected to the input end of the operational amplifier G, and the output end of the operational amplifier G is connected to the other end of the power storage unit U; capacitor C1, capacitor C2 and capacitor C3 are respectively connected in parallel with the PVDF piezoelectric film sensor Q; capacitor C4 and resistor R are connected in parallel with the operational amplifier G.

[0036] In this embodiment, the stress sensor 5 is a vibrating string stress sensor. It is obtained through finite element calculation that when the simple device for lifting a long steel bar skeleton with an early warning function is in use, the stress state of the triangular support reaches the maximum, so the stress sensor is set on the hypotenuse of the triangular support, and the preset measuring device is connected to the early warning device and the stress sensor. It is used to monitor the force in the lifting process and convert it into the change of the vibrating string stress, thereby changing the vibration frequency of the vibrating string. The frequency signal is transmitted to the reading device through the cable and then transmitted to the early warning device.

[0037] Further, such as Figure 3 As shown, the lower structure of the hanger also includes a PVDF piezoelectric film sensor support platform 10; the PVDF piezoelectric film sensor support platform 10 is connected to two parallel first support structures 3, and the upper surface of the PVDF piezoelectric film sensor support platform 10 is used to place the PVDF piezoelectric film sensor Q; so that the PVDF piezoelectric film sensor Q can be fixed in the lower structure of the hanger.

[0038] The piezoelectric material of the PVDF piezoelectric film sensor can convert the load of the hoisting action into electrical energy through the pressure generated by the spring according to its force-to-electricity conversion characteristics, and collect and utilize it to achieve the purpose of power generation. The storage unit stores electrical energy and can also provide electrical energy to the alarm unit.

[0039] Furthermore, the elastic connecting member includes a spring; it may also be any other elastic connecting member.

[0040] Furthermore, the power storage unit U includes a lithium battery; it can also be other types of batteries, such as a lead-acid battery.

[0041] Furthermore, the device also includes: a lifting ring 6; wherein the lifting ring 6 is arranged at the top of the triangular support 1; the lifting ring 6 is used to fix the simple device for lifting a long steel bar skeleton with an early warning function in this embodiment to a preset lifting position.

[0042] Furthermore, the material of the first supporting structure 3 includes I-beams; the material of the triangular brace includes channel steel.

[0043] Furthermore, the second supporting structure 4 is triangular, and includes channel steel.

[0044] Further, such as Figure 5 As shown, the warning unit 8 includes a speaker 11 and a warning light 12; when the hanging weight exceeds a set threshold, sound and light alarm prompts can be issued simultaneously.

[0045] When the simple device of this embodiment is used, the target limit stress value can be determined according to the monitoring plan, and adjusted to a specified value through the preset measuring device adjustment area. When a certain value is reached, it will be fed back to the alarm unit to remind the staff that the lifting weight is overloaded.

[0046] The construction steps of the simple device for lifting long steel bar skeleton with early warning function in this embodiment are as follows:

[0047] 1. Installation and assembly of facilities: First of all, during construction, the various parts of the hanger must be assembled into a complete hanger, the connecting parts must be welded, and the welding of each part must be checked to see if it is normal. The stress sensor equipment must be installed, the piezoelectric vibration measuring film must be pasted, and all facilities must be ensured to be in normal use.

[0048] 2. Carry out load-added test: Load the specified weight of soil or sand bags on the working area of ​​the hanger for evaluation, and observe whether it will shake left and right, whether there will be pauses during the ascent, uneven gravity distribution, or alarms caused by excessive force or displacement, which may lead to safety accidents.

[0049] 3. Conduct hoisting test: After ensuring the safety and smooth progress of the previous matters, the final construction test is carried out. After the personnel fix the steel frame, they use the crane to hoist it slowly to the designated position and then stop rising. The construction personnel conduct on-site construction and observe whether the stress sensor and warning device will sound an alarm.

[0050] The simple device for lifting a long steel bar skeleton with an early warning function in this embodiment comprises a hanger lower structure comprising two parallel first support structures and a plurality of second support structures; the plurality of second support structures are evenly arranged between the two first support structures; the triangular support is connected to part of the second support structure through an oblique support; a stress sensor is installed on the hypotenuse of the triangular support, a PVDF piezoelectric film sensor is installed in the hanger lower structure, the PVDF piezoelectric film sensor is connected to the power storage unit through a charging circuit, and an alarm unit is connected to the stress sensor and the power storage unit; an elastic connector is provided on the PVDF piezoelectric film sensor, the elastic connector is connected to a cross bar, and a plurality of hanging rings are provided below the hanger lower structure, each of which is connected to a cross bar; each time the weight is lifted, the stress sensor detects the stress change of the triangular support, and when the stress change reaches a threshold value, an alarm is issued through the early warning device; at the same time, when the weight is lifted, the heavy object presses the PVDF piezoelectric film sensor to generate electrical energy, and charges the power storage unit through the charging circuit, so that the early warning device can continue to work while realizing the alarm.

[0051] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A simple device for lifting a long steel bar skeleton with an early warning function, characterized in that: The device comprises: a hanger upper structure, a hanger lower structure and an early warning device, wherein the hanger upper structure is arranged above the hanger lower structure; The upper structure of the hanger includes: a triangular support and a plurality of diagonal supports, and the lower structure of the hanger includes two parallel first support structures and a plurality of second support structures; the plurality of second support structures are evenly arranged between the two first support structures; the triangular support is connected to part of the second support structures through the diagonal support; The early warning device includes: a stress sensor, a PVDF piezoelectric film sensor, an alarm unit and a power storage unit; wherein, the stress sensor is installed on the hypotenuse of the triangular support, the PVDF piezoelectric film sensor is installed in the lower structure of the hanger, the PVDF piezoelectric film sensor is connected to the power storage unit through a charging circuit, and the alarm unit is connected to the stress sensor and the power storage unit; an elastic connector is provided on the PVDF piezoelectric film sensor, the elastic connector is connected to the cross bar, and a plurality of hanging rings are provided below the lower structure of the hanger, and each hanging ring is connected to the cross bar.

2. The simple device for lifting a long steel bar skeleton with an early warning function according to claim 1 is characterized in that: The charging circuit includes: capacitor C1, capacitor C2, capacitor C3, capacitor C4, resistor R and operational amplifier G; wherein, one end of the PVDF piezoelectric film sensor is connected to one end of the power storage unit, the other end of the PVDF piezoelectric film sensor is connected to the input end of the operational amplifier, and the output end of the operational amplifier is connected to the other end of the power storage unit; capacitor C1, capacitor C2 and capacitor C3 are respectively connected in parallel with the PVDF piezoelectric film sensor; capacitor C4 and resistor R are connected in parallel with the operational amplifier G.

3. The simple device for lifting a long steel bar skeleton with an early warning function according to claim 1 is characterized in that: The lower structure of the hanger also includes a PVDF piezoelectric film sensor support platform; the PVDF piezoelectric film sensor support platform is connected to two parallel first support structures, and the upper surface of the PVDF piezoelectric film sensor support platform is used to place the PVDF piezoelectric film sensor.

4. The simple device for lifting a long steel bar skeleton with an early warning function according to claim 1 is characterized in that: The elastic connecting member includes a spring.

5. The simple device for lifting a long steel bar skeleton with an early warning function according to claim 1 is characterized in that: The power storage unit includes a lithium battery.

6. The simple device for lifting a long steel bar skeleton with an early warning function according to claim 1 is characterized in that: The device further comprises: a lifting ring; wherein the lifting ring is arranged at the top end of the triangular support.

7. The simple device for lifting a long steel bar skeleton with an early warning function according to claim 1 is characterized in that: The material of the first supporting structure includes I-beam; the material of the triangular support includes channel steel.

8. The simple device for lifting a long steel bar frame with an early warning function according to claim 1 is characterized in that: The second supporting structure is triangular in shape and comprises channel steel.

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