Automatic alarm for tilting of hanging basket beam body of swivel bridge

Abstract

The utility model relates to the technical field of automatic alarm of inclination, and discloses a swivel bridge hanging basket beam body automatic alarm of inclination, which comprises a base shell, a shell cover, a yellow alarm and a red alarm, a power connection joint, a mechanical type inclination sensing module, a scale line, a marking needle and a motor. The swivel bridge hanging basket beam body automatic alarm of inclination takes the gravity movement of mercury beads as the core of a mechanical type inclination sensing module, cooperates with a scale line, a marking needle and a motor, can accurately set an inclination threshold, adapts to construction whole cycle monitoring demand, improves the universality and practicality, sets two groups of independent alarms of yellow and red, distinguishes the "early warning" and "danger" levels through different sound and light signals, and on-site personnel can quickly judge the risk according to the senses to provide clear and timely support for emergency decision-making.

Description

Technical Field

[0001] This utility model relates to the technical field of tilt automatic alarm devices, specifically an automatic alarm device for tilting of the beam of a swing bridge hanging basket. Background Technology

[0002] In the field of bridge construction, swing bridges have been widely used in projects spanning railways, highways, rivers, and other special scenarios due to their excellent adaptability to complex construction environments. As the core technology for the casting and assembly of swing bridge structures, the safety of the hanging basket construction directly determines the quality and progress of the entire bridge project. Among these processes, the beam hoisting is a critical step in hanging basket construction. Due to the large weight of the beams (typically hundreds or even thousands of tons), limited hoisting space, and numerous external environmental interferences (such as wind and vibrations from construction machinery), beam tilting is highly likely. If the tilt angle exceeds the safety threshold, it can not only lead to structural deformation and cracking of the beams, but in severe cases, it can also cause major safety accidents such as the overturning of hoisting equipment and the falling of the beams, resulting in huge casualties and economic losses. Therefore, real-time and accurate monitoring and timely alarm of the tilting state during beam hoisting are crucial.

[0003] Equipment monitoring typically employs tilt sensors with fixed thresholds. These sensors are installed at designated locations on the beam, and a single alarm tilt angle value is preset. When the sensor detects that the beam's tilt angle reaches this fixed value, an alarm is triggered, emitting a warning signal. However, in actual swing bridge beam hoisting construction, the alarm tilt angle cannot be flexibly adjusted according to the actual needs of different construction stages. Furthermore, it lacks tiered safety standards for differentiated early warning, reducing the effectiveness of the tilt alarm and failing to meet practical requirements. Therefore, we propose an automatic tilt alarm for swing bridge beams to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic alarm for the tilt of the swing bridge's hanging basket beam. It solves the problems of using a fixed threshold design, which cannot flexibly adjust the alarm tilt angle according to the actual needs of different construction stages of the swing bridge's hanging basket beam hoisting; lacking graded safety standards, which cannot achieve differentiated early warning, resulting in reduced effectiveness and difficulty in meeting actual construction monitoring needs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic alarm device for tilting of the beam of a swing bridge hanging basket, including a base housing;

[0006] The housing cover is installed with screws at the top opening of the base housing, and a yellow alarm and a red alarm are respectively fixedly installed on the top of the housing cover;

[0007] A power connection connector is located on the side of the base housing;

[0008] Two sets of mechanical tilt sensing modules are provided and installed inside the base housing. The tilt angle threshold can be flexibly adjusted, and the two sets of mechanical tilt sensing modules are respectively connected to the yellow alarm and the red alarm.

[0009] Preferably, fixing holes are provided at all four corners of the base housing.

[0010] Preferably, the mechanical tilt sensing module includes symmetrically distributed support plates fixed to the inner wall of the base housing. A glass tube is provided between two sets of support plates, and mercury beads are placed inside the glass tube. An electrode contact is provided at one end of the glass tube. A motor is fixedly mounted on the surface of one set of support plates. A sleeve is fixed at the center of the outside of the glass tube. The output end of the motor is fixedly connected to the center of the sleeve outside the glass tube. The other side of the sleeve is rotatably connected to another set of support plates through a rotating shaft. A scale line distributed in a ring is fixedly mounted on the surface of the other set of support plates. A marking needle is fixed on the surface of the sleeve. A control switch for starting the motor is installed inside the base housing.

[0011] Preferably, the center of the marking needle, the center of the output end of the motor, the center of the scale line, and the center line of the glass tube are on the same horizontal plane, and the electrode contacts of the two sets of mechanical tilt sensing modules are respectively connected to the yellow alarm and the red alarm.

[0012] Preferably, the support plate is made of transparent acrylic sheet.

[0013] Beneficial effects

[0014] This utility model provides an automatic alarm device for the tilt of the beam of a swing bridge with a hanging basket. Compared with the prior art, it has the following advantages:

[0015] This automatic tilt alarm for the swing bridge's canopy formwork adopts a mechanical tilt sensing module, using the gravity movement of mercury beads as its core detection principle. Combined with a visually adjustable design featuring scale lines, marker needles, and a motor, it allows for precise setting of the tilt threshold according to actual usage scenarios. This adapts to the differentiated monitoring needs throughout the entire construction cycle of the swing bridge canopy, significantly improving the alarm's versatility and practicality. Equipped with two independent sets of yellow and red alarms, it visually distinguishes between "warning" and "danger" tilt levels through different colored light flashes and differentiated buzzer frequencies. On-site personnel can quickly assess the risk of beam tilt without additional equipment, relying solely on visual and auditory feedback, providing clear and timely signal support for emergency decision-making. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention with the shell and cover separated;

[0018] Figure 3 This utility model Figure 2 An enlarged structural diagram of point A.

[0019] In the diagram: 101, base housing; 102, fixing hole; 103, housing cover; 104, yellow alarm; 105, red alarm; 106, power connection connector; 2, mechanical tilt sensor module; 201, support plate; 202, scale line; 203, glass tube; 204, marking needle; 205, mercury bead; 206, electrode contact; 207, motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-3 As shown:

[0022] An automatic alarm for tilting of the beam of a swing bridge hanging basket includes a base housing 101;

[0023] The housing cover 103 is installed on the top opening of the base housing 101 by screws, and a yellow alarm 104 and a red alarm 105 are respectively fixedly installed on the top of the housing cover 103;

[0024] The power connector 106 is located on the side of the base housing 101;

[0025] Two sets of mechanical tilt sensing modules 2 are installed inside the base housing 101. The tilt angle threshold can be flexibly adjusted. The two sets of mechanical tilt sensing modules 2 are respectively connected to the yellow alarm 104 and the red alarm 105. Each mechanical tilt sensing module 2 includes symmetrically distributed support plates 201 fixed to the inner wall of the base housing 101. A glass tube 203 is provided between the two sets of support plates 201, containing mercury beads 205. One end of the glass tube 203 has an electrode contact 206. A motor 207, which can be a permanent magnet synchronous motor, is fixedly mounted on the surface of one set of support plates 201. A sleeve is fixed at the center of the outer surface of the glass tube 203. The output end of 07 is fixedly connected to the center of the outer sleeve of the glass tube 203. The other side of the sleeve is rotatably connected to another set of support plates 201 through a rotating shaft. The surface of the other set of support plates 201 is fixedly installed with scale lines 202 distributed in a ring. The surface of the sleeve is fixed with a marking needle 204. The base housing 101 is equipped with a control switch for starting the motor 207. The center of the marking needle 204, the center of the output end of the motor 207, the center of the scale line 202, and the center line of the glass tube 203 are on the same horizontal plane. The electrode contacts 206 of the two sets of mechanical tilt sensing modules 2 are connected to the yellow alarm 104 and the red alarm 105 respectively. The support plate 201 is made of transparent acrylic sheet.

[0026] Fixing holes 102 are provided at all four corners of the base housing 101.

[0027] In this implementation plan: The automatic alarm for the tilt of the swing bridge's cantilever beam is rigidly connected to the key monitoring positions at both ends of the swing bridge's cantilever beam via pre-drilled fixing holes 102 at the four corners of the base housing 101 and fastening components such as bolts. During installation, it is essential to ensure a tight fit between the base housing 101 and the beam surface, minimizing horizontal deviation, to guarantee the accuracy of subsequent tilt detection and prevent false alarms or missed alarms due to installation errors.

[0028] The external power supply line is reliably connected to the power connection connector 106 on the side of the base housing 101 to power the entire alarm system. The power connection connector 106 adopts a sealed design that prevents loosening and rainwater intrusion, which can adapt to the complex environment of open air, dust, and high humidity during bridge construction, ensuring power supply stability and avoiding device failure due to power outages;

[0029] According to the safety control requirements of different construction stages of the swing bridge cantilever beam, the motors 207 in the two sets of mechanical tilt sensing modules 2 are activated by the preset control switch in the base housing 101. The output end of the motor 207 is fixedly connected to the sleeve at the center of the outside of the glass tube 203. When the motor 207 is running, it drives the sleeve to rotate the glass tube 203 around the shaft connected to another set of support plates 201. The operator can accurately adjust the initial tilt angle of the glass tube 203 by observing the corresponding positions of the marking needles 204 fixed on the surface of the sleeve and the scale lines 202 distributed in a ring on the surface of the support plate 201.

[0030] For the first set of mechanical tilt sensing modules 2 connected to the yellow alarm 104, the initial tilt angle of the glass tube 203 is adjusted to 3°, which corresponds to the warning threshold of beam tilt. For the second set of mechanical tilt sensing modules 2 connected to the red alarm 105, the initial tilt angle of the glass tube 203 is adjusted to 8°, which corresponds to the danger threshold of beam tilt. After the adjustment is completed, the control switch is turned off, the motor 207 stops running, the position of the glass tube 203 is locked, and the device enters the monitoring state.

[0031] During the beam hoisting operation, when the beam tilts due to external interference, such as wind load, shift of the hoisting center of gravity, or mechanical vibration, the base shell 101, which is rigidly connected to the beam, will synchronously tilt, thereby causing the overall attitude change of the two sets of mechanical tilt sensing modules 2 inside the shell. At this time, the mercury beads 205 inside the glass tube 203 will move towards the lower potential energy end along the inner wall of the glass tube 203 due to gravity.

[0032] When the beam tilt angle reaches or exceeds 3°, the mercury droplet 205 inside the glass tube 203 of the mechanical tilt sensing module 2 corresponding to the yellow alarm 104 will move to and contact the electrode contact 206 at one end of the glass tube 203. Because mercury has good conductivity, a complete circuit is formed upon contact, and current is transmitted through the electrode contact 206 to the yellow alarm 104, triggering the yellow alarm 104 to simultaneously produce flashing lights and a buzzer sound. This warning signal can promptly remind on-site workers and construction personnel that the beam has tilted slightly, requiring immediate inspection of the hoisting equipment status, adjustment of hoisting parameters, and maintaining a high degree of caution during operations to prevent further increase in the tilt angle.

[0033] If the tilt angle of the beam continues to increase and reaches or exceeds 8°, the mercury beads 205 in the glass tube 203 of the mechanical tilt sensing module 2 corresponding to the red alarm 105 will quickly move to the electrode contact 206 at one end of the glass tube 203 and make contact, thus forming a circuit loop. After the current is transmitted to the red alarm 105, the red alarm 105 will emit a stronger flashing light and a high-frequency buzzer sound. This signal indicates that the beam is in a severely tilted state and there is a risk of overturning. On-site personnel must immediately stop the beam hoisting operation, activate the emergency response plan, and organize personnel to evacuate to a safe area to avoid major safety accidents such as equipment overturning and beam falling.

[0034] Once the beam tilting issue is resolved, the beam drives the base housing 101 back to its initial horizontal state. The mercury beads 205 inside the glass tube 203 return to their initial position under gravity, separating from the electrode contacts 206, breaking the circuit, and the alarm automatically stops. If subsequent construction requires adjustment of the tilt threshold, the motor 207 can be restarted via the control switch to repeat the tilt threshold adjustment steps, flexibly adapting to the monitoring needs of different construction scenarios and enabling the device to be reused.

[0035] This solution employs a mechanical tilt sensing module 2, using the gravity movement of a mercury bead 205 as the core detection principle. Combined with a visually adjustable design for the scale line 202, marker needle 204, and motor 207, it allows for precise setting of the tilt threshold according to actual usage scenarios. This adapts to the differentiated monitoring needs throughout the entire construction cycle of the swing bridge formwork, significantly improving the versatility and practicality of the alarm. Equipped with two independent sets of yellow and red alarms, it visually distinguishes between "warning" and "danger" tilt states through different colored light flashes and differentiated buzzer frequencies. On-site personnel can quickly assess the risk of beam tilt using only visual and auditory means, without the need for additional equipment, providing clear and timely signal support for emergency decision-making.

[0036] The support plate 201 is made of transparent acrylic sheet, which makes it easy to observe the movement of the mercury beads 205 inside the glass tube 203, and also allows observation of the correspondence between the scale line 202 and the marker needle 204.

[0037] It should be noted that all electrical equipment involved in this product is powered by an external power source, and the power connection method of each electrical device is a mature existing technology, which is well known to those in the field, and will not be elaborated further here.

[0038] The output end of the permanent magnet synchronous motor can be equipped with a worm gear transmission mechanism using conventional techniques, which ensures angle tilt locking;

[0039] It should be noted that when the staff adjusts the tilt angle flexibly according to the actual use scenario, they can use a screwdriver to unscrew and remove the screws to release the position lock of the base housing 101 and the housing cover 103, remove the housing cover 103, and then adjust the mechanical tilt sensing module 2 inside the base housing 101. Each adjustment is a maintenance procedure.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic alarm device for the tilting of the beam of a swing bridge with a hanging basket, characterized in that: Includes the base housing (101); The housing cover (103) is installed at the top opening of the base housing (101) by screws, and a yellow alarm (104) and a red alarm (105) are respectively fixedly installed on the top of the housing cover (103); A power connector (106) is provided on the side of the base housing (101); Two sets of mechanical tilt sensing modules (2) are provided and installed in the base housing (101). The tilt angle threshold can be flexibly adjusted, and the two sets of mechanical tilt sensing modules (2) are respectively connected to the yellow alarm (104) and the red alarm (105).

2. The automatic alarm device for tilting of the swing bridge cantilever beam as described in claim 1, characterized in that: Fixing holes (102) are provided at all four corners of the base housing (101).

3. The automatic alarm device for tilting of the swing bridge cantilever beam as described in claim 1, characterized in that: The mechanical tilt sensing module (2) includes support plates (201) symmetrically distributed on the inner sidewall of the base housing (101). A glass tube (203) is provided between the two sets of support plates (201). Mercury beads (205) are provided inside the glass tube (203). An electrode contact (206) is provided at one end of the glass tube (203). A motor (207) is fixedly installed on the surface of one set of support plates (201). A sleeve is fixed at the center of the outside of the glass tube (203). The output end of the motor (207) is fixedly connected to the center of the sleeve outside the glass tube (203). The other side of the sleeve is rotatably connected to another set of support plates (201) through a rotating shaft. A scale line (202) distributed in a ring is fixedly installed on the surface of the other set of support plates (201). A marking needle (204) is fixed on the surface of the sleeve. A control switch for starting the motor (207) is installed inside the base housing (101).

4. The automatic alarm device for tilting of the swing bridge cantilever beam as described in claim 3, characterized in that: The center of the marking needle (204) and the output end of the motor (207), the center of the scale line (202), and the center line of the glass tube (203) are on the same horizontal plane. The electrode contacts (206) of the two sets of mechanical tilt sensing modules (2) are connected to the yellow alarm (104) and the red alarm (105) respectively.

5. The automatic alarm device for tilting of the swing bridge cantilever beam as described in claim 3, characterized in that: The support plate (201) is made of transparent acrylic sheet.

Images