A settlement displacement detection device

Abstract

The utility model provides a settlement displacement detection device relates to settlement detection technical field, including road bridge pier, pier foundation and settlement detection device foundation, be installed with detection stand on the settlement detection device foundation, the lateral wall of road bridge pier is installed with the fixing frame, the fixing frame passes through displacement frame and extends to the inside of detection stand, the top of displacement frame is located in the inside of detection stand and is equipped with early warning structure, the utility model discloses a first pressure sensor and second pressure sensor are set up, cooperate early warning structure, can when displacement reaches certain degree, through first pressure sensor triggers early warning signal, reminds relevant personnel to pay attention in advance when bridge settlement displacement occurs initially, along with settlement displacement further development, when reaches more serious degree, second pressure sensor triggers alarm signal, and this twice alarm mechanism realizes the prevention and warning to bridge settlement displacement, and effectively strengthens the security guarantee of bridge operation.

Description

Technical Field

[0001] This utility model relates to the field of settlement detection technology, and in particular to a settlement displacement detection device. Background Technology

[0002] Currently, bridge settlement detection mainly relies on manual periodic use of tools such as levels and steel rulers. Although this method is simple to operate, it is easily affected by human factors, resulting in large measurement errors. In addition, manual detection cannot provide real-time warnings of potential safety risks and cannot provide sufficient safety guarantees. Especially when the bridge is under multiple pressures, it is easy to miss hidden dangers, affecting the safety and stability of the bridge. To address this issue, Chinese patent 202421889572.5 proposes a road and bridge settlement displacement detection device. Through the design of a fixed block and an L-shaped support, it can monitor bridge settlement in a timely manner. When bridge settlement occurs, the L-shaped support moves downwards along with the bridge, triggering a connected pressure sensor. The device sends an alarm signal through a signal processing module to alert monitoring personnel. While this device can reduce human error, in practical applications, because bridge settlement is a gradual process, existing alarm mechanisms can only provide alarms for single, isolated events and cannot provide early warnings or effective prevention.

[0003] Therefore, we propose a new settlement displacement detection device to overcome the shortcomings of existing technologies, provide two alarms, and ensure the safe and stable operation of bridges. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by providing a structure design with two alarms, enabling the transmission of early warning and subsequent alarm signals to meet the needs of preventing and monitoring settlement displacement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A settlement displacement detection device is used to detect the settlement displacement of road and bridge piers and pier foundations relative to the foundation of the settlement detection device. A detection column is installed on the foundation of the settlement detection device, and a fixing frame is installed on the side wall of the road and bridge pier. The fixing frame extends into the detection column through a displacement frame, and an early warning structure is provided above the displacement frame inside the detection column. The warning structure includes a fixed sleeve, a sliding pressure rod extending from the bottom of the fixed sleeve, a pressure plate fixedly mounted at the bottom of the sliding pressure rod, a first pressure sensor mounted at the bottom of the pressure plate, and a spring inside the fixed sleeve. The spring is compressed between the fixed sleeve and the sliding pressure rod and opens to cause the pressure plate to abut against the displacement frame. The length of the uncompressed spring is less than the length from the fixed sleeve to the bottom of the fixed sleeve.

[0006] Furthermore, a second pressure sensor is installed below the displacement frame on the inner bottom surface of the detection column.

[0007] Furthermore, the first pressure sensor and the second pressure sensor are electrically connected and installed in a distribution box on the side wall of the road bridge pier.

[0008] Furthermore, the fixing frame is bolted to the side wall of the road and bridge pier, corresponding to the detection column near the center.

[0009] Furthermore, the outer side of the detection column is vertically provided with a lifting groove for the displacement frame to pass through, the bottom of the displacement frame is provided with a lifting stop bar corresponding to the lifting groove, and the bottom of the lifting stop bar is provided with a clearance groove corresponding to the foundation of the settlement detection device for the lifting stop bar to be lowered.

[0010] Furthermore, the displacement frame is a tray structure located inside the fixed sleeve, and a pressure head is installed at the bottom, which corresponds to the second pressure sensor.

[0011] Furthermore, when the spring is in a compressed state, the first pressure sensor abuts against the displacement frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, by setting up a first pressure sensor and a second pressure sensor in conjunction with an early warning structure, can trigger an early warning signal through the first pressure sensor when the bridge settlement displacement reaches a certain level in the early stage, reminding relevant personnel to pay attention in advance; as the settlement displacement further develops and reaches a more serious level, the second pressure sensor triggers an alarm signal, allowing timely measures to be taken. This dual alarm mechanism realizes the prevention and warning of bridge settlement displacement, effectively enhancing the safety guarantee of bridge operation. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of a settlement displacement detection device provided by this utility model; Figure 2 A schematic diagram of the internal structure of the detection column of a settlement displacement detection device provided by this utility model; Figure 3 A schematic diagram of the overall anatomical structure of the detection column of the settlement displacement detection device provided by this utility model; Figure 4 This is a schematic diagram of the early warning structure of a settlement displacement detection device provided by this utility model.

[0014] Legend: 1. Road and bridge piers; 2. Bridge pier foundation; 3. Foundation for settlement monitoring device; 31. Void relief trench; 4. Inspection column; 41. Lifting groove; 42. Lifting stop bar; 5. Fixture; 6. Displacement frame; 61. Pressure head; 7. Warning structure; 71. Fixed sleeve; 72. Sliding pressure rod; 73. Pressure plate; 74. First pressure sensor; 75. Spring; 8. Second pressure sensor; 9. Distribution box. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0017] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Example 1

[0020] like Figure 1-4As shown, this utility model provides a technical solution: a settlement displacement detection device for detecting the settlement displacement of a road bridge pier 1 and a pier foundation 2 relative to a settlement detection device foundation 3. A detection column 4 is installed on the settlement detection device foundation 3. The detection column 4 is made of high-strength, corrosion-resistant alloy steel to ensure sufficient stability and durability during long-term use. A fixing frame 5 is installed on the side wall of the road bridge pier 1. The fixing frame 5 extends into the detection column 4 through a displacement frame 6. An early warning structure 7 is provided above the displacement frame 6 inside the detection column 4.

[0021] The warning structure 7 includes a fixed sleeve 71, within which a sliding pressure rod 72 extends to the bottom. The sliding pressure rod 72 is made of stainless steel to reduce friction during sliding. A pressure plate 73 is fixedly mounted at the bottom of the sliding pressure rod 72, and a first pressure sensor 74 is installed at the bottom of the pressure plate 73. The first pressure sensor 74 is a high-precision, high-sensitivity model that can accurately detect pressure changes. A spring 75 is installed inside the fixed sleeve 71. The spring 75 is made of high-quality spring steel and has good elasticity and fatigue resistance. The spring 75 is compressed between the fixed sleeve 71 and the sliding pressure rod 72, and when it opens, it causes the pressure plate 73 to abut against the displacement frame 6. In the uncompressed state, the length of the spring 75 is less than the length from the fixed sleeve 71 to the bottom of the fixed sleeve 71, meaning that when the spring 75 is fully open, it will not push the displacement frame 6 to the bottom of the fixed sleeve 71.

[0022] Example 2

[0023] like Figure 1-4 As shown, a second pressure sensor 8 is installed on the bottom surface of the detection column 4 below the displacement frame 6. The second pressure sensor 8 is also a high-precision and high-reliability product and works independently of the first pressure sensor 74. When the displacement frame 6 does not contact the first pressure sensor 74, and as the road bridge pier 1 settles and moves, the displacement frame 6 and the second pressure sensor 8 come into contact, triggering an alarm signal.

[0024] The first pressure sensor 74 and the second pressure sensor 8 are electrically connected to the distribution box 9 installed on the side wall of the road bridge pier 1. The distribution box 9 supplies power and is wirelessly connected to the control center. Wireless communication technologies such as ZigBee and LoRa are used to enable the rapid and accurate transmission of early warning signals and alarm signals from the first pressure sensor 74 and the second pressure sensor 8.

[0025] The fixing frame 5 is installed on the side wall of the road and bridge pier 1 by bolts, corresponding to the detection column 4 near the center. The bolts are made of high-strength, corrosion-resistant stainless steel to ensure that the installation is firm and reliable.

[0026] The outer side of the detection column 4 is vertically provided with a lifting groove 41 for the displacement frame 6 to pass through. The surface of the lifting groove 41 is smoothed to reduce friction during the lifting process of the displacement frame 6. The bottom of the displacement frame 6 is provided with a lifting baffle 42 corresponding to the lifting groove 41. The lifting baffle 42 is made of stainless steel to extend its service life. The bottom of the lifting baffle 42 is provided with a clearance groove 31 corresponding to the foundation 3 of the settlement detection device for the lifting baffle 42 to descend. The size of the clearance groove 31 is precisely designed according to the movement range of the lifting baffle 42 to ensure that the lifting baffle 42 can rise and fall freely and to prevent dust from entering and damaging the second pressure sensor 8.

[0027] The displacement frame 6 is located inside the fixed sleeve 71 and has a tray structure. A pressure head 61 is installed at the bottom. The pressure head 61 corresponds to the second pressure sensor 8 to ensure that the pressure can be accurately transmitted.

[0028] When the spring 75 is in a compressed state, the first pressure sensor 74 contacts the displacement frame 6. When the road bridge pier 1 settles and shifts, the displacement frame 6 will move accordingly. After the spring 75 is released from the compressed state, the first pressure sensor 74 will disengage from the displacement frame 6 and issue a warning signal.

[0029] The working process of this utility model is as follows: When using a settlement displacement detection device, when the bridge pier 1 of a road bridge experiences slight settlement, the displacement frame 6 moves downward and the spring 75 gradually extends (opens). When the spring 75 is completely released from the compressed state (as the displacement frame 6 moves downward), the first pressure sensor 74 is released from the displacement frame 6. During this process, the first pressure sensor 74 transmits the pressure change signal to the distribution box 9. The distribution box 9 sends an early warning signal to the control center through wireless communication technology, reminding relevant personnel that the bridge pier has settled and needs to be closely monitored. As the pier settlement progresses, the displacement frame 6 continues to descend. When the pressure head 61 contacts the second pressure sensor 8 and generates sufficient pressure, the second pressure sensor 8 transmits an alarm signal to the distribution box 9. The distribution box 9 then sends the alarm signal to the control center, indicating that the pier settlement has reached a dangerous level and that immediate emergency measures are needed, such as reinforcing the pier or restricting traffic on the bridge, to ensure the safe and stable operation of the road and bridge.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A settlement displacement detection device for detecting the settlement displacement of a road bridge pier (1) and its foundation (2) relative to the foundation (3) of the settlement detection device, characterized in that: The settlement detection device is installed on the foundation (3) with a detection column (4), and the side wall of the road bridge pier (1) is equipped with a fixing frame (5). The fixing frame (5) extends into the detection column (4) through a displacement frame (6). An early warning structure (7) is provided above the displacement frame (6) inside the detection column (4). The warning structure (7) includes a fixed sleeve (71), a sliding pressure rod (72) is slidably connected inside the fixed sleeve (71) and extends out to the bottom, and a pressure plate (73) is fixedly provided at the bottom of the sliding pressure rod (72). A first pressure sensor (74) is installed at the bottom of the pressure plate (73). A spring (75) is provided inside the fixed sleeve (71). The spring (75) is compressed between the fixed sleeve (71) and the sliding pressure rod (72) and opens to drive the pressure plate (73) to abut against the displacement frame (6). The length of the spring (75) in the uncompressed state is less than the length from the fixed sleeve (71) to the bottom of the fixed sleeve (71).

2. The settlement displacement detection device according to claim 1, characterized in that: A second pressure sensor (8) is installed on the bottom surface of the detection column (4) below the displacement frame (6).

3. The settlement displacement detection device according to claim 2, characterized in that: The first pressure sensor (74) and the second pressure sensor (8) are electrically connected and installed in the distribution box (9) on the side wall of the road bridge pier (1).

4. The settlement displacement detection device according to claim 1, characterized in that: The fixing frame (5) is installed on the side wall of the road bridge pier (1) by bolts, corresponding to the detection column (4) near the center.

5. The settlement displacement detection device according to claim 1, characterized in that: The outer side of the detection column (4) is vertically provided with a lifting groove (41) for the displacement frame (6) to pass through. The bottom of the displacement frame (6) is provided with a lifting baffle (42) corresponding to the lifting groove (41). The bottom of the lifting baffle (42) is provided with a clearance groove (31) corresponding to the foundation (3) of the settlement detection device, for the lifting baffle (42) to be lowered.

6. The settlement displacement detection device according to claim 2, characterized in that: The displacement frame (6) is located inside the fixed sleeve (71) and has a tray structure, and a pressure head (61) is installed at the bottom. The pressure head (61) corresponds to the second pressure sensor (8).

7. The settlement displacement detection device according to claim 1, characterized in that: When the spring (75) is in a compressed state, the first pressure sensor (74) abuts against the displacement frame (6).

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