Dynamic and static testing device for bearing capacity of well lid and well grate

Abstract

The utility model discloses a dynamic and static testing device for the bearing capacity of a well lid and a well grate, and relates to the technical field of well lid and well grate testing, in particular to the dynamic and static testing device for the bearing capacity of the well lid and well grate. Comprising a well lid cushion block, a fixed impact block, an impact air cylinder and the like. According to the device, the innovative design that a displayer, a load sensor and a motion sensor are combined is adopted, and the real-time display function is achieved through the Bluetooth technology; a load cylinder works, various sensors monitor performance changes at the same time to feed back various test functions except for load and fatigue life detection, and meanwhile, by means of the structure that a fixed impact block and the cylinder are combined, stability test of well lids of different models is achieved, and therefore the universality and test accuracy of the device are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover and manhole grating testing, in particular to a dynamic and static testing device for the bearing capacity of manhole cover and manhole grating. Background Art

[0002] The dynamic and static test device for the bearing capacity of manhole cover grates is a device for testing the bearing capacity and other performance of manhole cover grates. The existing manhole cover grates test device cannot intuitively display the test data of the manhole cover grates. The existing manhole cover grates test device has a single test effect and can only test a certain performance of the manhole cover grates. The existing manhole cover grates test device cannot test manhole cover grates of various models and sizes, and has poor versatility. The existing manhole cover grates bearing capacity dynamic and static test system (publication number: CN213688912U) at least exposes the following shortcomings in use:

[0003] 1. The existing manhole cover and grating test device cannot intuitively display the test data, cannot present the test results in time, increases the complexity of data processing and analysis, makes it difficult to monitor the performance changes of the manhole cover and grating in real time, reduces the understanding of its actual working status, and cannot intuitively display abnormal conditions during the test, which increases the difficulty of troubleshooting. Therefore, a manhole cover and grating test device with data display is urgently needed.

[0004] 2. The disadvantages of existing manhole cover and manhole grating testing devices are that the testing effect is single and can only test one type of data such as load, and lacks diverse testing functions. This makes it impossible to comprehensively evaluate the various performance indicators of manhole covers or manhole grates, such as fatigue life, durability, etc., which limits the comprehensive evaluation of their quality and reliability. The lack of multi-faceted performance testing functions may also lead to the inability to discover potential problems and hidden dangers, affecting the safety and reliability of the product and reducing the comprehensiveness and practicality of the test. Therefore, there is an urgent need for a manhole cover and manhole grating testing device with multiple data tests.

[0005] 3. The existing manhole cover and grating testing devices are only suitable for specific models and lack versatility. They show obvious limitations when testing different models of manhole covers and grates. This shortcoming causes the testing device to be unable to cover the diverse manhole cover and grating products on the market, limiting its scope of application and flexibility. Due to the lack of versatility, different testing devices need to be purchased for different models of products, which increases costs and management complexity, reduces testing efficiency and convenience, and affects the comprehensiveness and practicality of the testing work. Therefore, there is an urgent need for a manhole cover and grating testing device with strong versatility. Utility Model Content

[0006] The main purpose of the utility model is to provide a dynamic and static testing device for the bearing capacity of a manhole cover and a manhole grating, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A dynamic and static testing device for the bearing capacity of a manhole cover and a manhole grate comprises a manhole cover pad, a fixed impact block is installed above the manhole cover pad, an impact cylinder is installed on the left side of the fixed impact block, a cylinder fixing plate is installed on the left side of the impact cylinder, a fixed column is installed on the left side of the manhole cover pad, a display is nested outside the fixed column, a Bluetooth receiver is installed on the display, a motion sensor is installed below the display, a load cylinder is installed above the fixed column, a cylinder column is installed below the load cylinder, a load pressure block is installed below the cylinder column, and a load sensor is arranged on the right side of the load pressure block.

[0009] Preferably, the manhole cover pad is square in design.

[0010] Preferably, the surface of the fixed impact block is designed to be curved.

[0011] Preferably, four fixed impact blocks are distributed in a square.

[0012] Preferably, one end of the cylinder fixing plate is connected to the fixing column.

[0013] Preferably, the display can slide up and down along the fixing column.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model is equipped with a display, a load sensor and a motion sensor. The original data is obtained through the load sensor and the motion sensor, and the original data is transmitted to a Bluetooth receiver for receiving. The original data is processed by the display and displayed on the display in real time. The performance data of the manhole cover is displayed intuitively and in real time, and the performance changes of the manhole cover and the manhole grating are monitored in real time, which enhances the understanding of its actual working status.

[0016] 2. The utility model is equipped with a display, a load sensor and a motion sensor. Raw data is obtained through the load sensor and the motion sensor, and the raw data is transmitted to a Bluetooth receiver for receiving. The fatigue life and durability of the manhole cover are analyzed through the cylinder motion data transmitted back by the motion sensor, and the load capacity is analyzed through the data transmitted back by the load sensor, thereby improving the accuracy and real-time performance of the test and providing comprehensive data support for the performance evaluation of the manhole cover and the manhole grating.

[0017] 3. The utility model equipment presses the manhole cover by fixing the impact block, and uses the cylinder to firmly fix the manhole cover on the manhole cover pad. This design enables the equipment to be applicable to different types of manhole covers and grates, and can be stably tested regardless of their size and shape. The combined use of the fixed impact block and the cylinder enhances the versatility and scope of application of the equipment, and reduces the restrictions and troubles of users during the purchase and use process. This design not only improves the flexibility and practicality of the equipment, but also simplifies the operation process, providing users with a more convenient and comprehensive testing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 A simulated circuit diagram of the circuit board of the utility model;

[0020] In the figure: 1. Manhole cover pad; 2. Fixed impact block; 3. Impact cylinder; 4. Cylinder fixing plate; 5. Load pressure block; 6. Load sensor; 7. Cylinder column; 8. Load cylinder; 9. Bluetooth receiver; 10. Display; 11. Motion sensor; 12. Fixed column. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example

[0025] See also Figure 1-2 , the utility model provides a technical solution:

[0026] A dynamic and static testing device for the bearing capacity of a manhole cover and a manhole grate comprises a manhole cover pad, a fixed impact block is installed above the manhole cover pad, an impact cylinder is installed on the left side of the fixed impact block, a cylinder fixing plate is installed on the left side of the impact cylinder, a fixed column is installed on the left side of the manhole cover pad, a display is nested outside the fixed column, a Bluetooth receiver is installed on the display, a motion sensor is installed below the display, a load cylinder is installed above the fixed column, a cylinder column is installed below the load cylinder, a load pressure block is installed below the cylinder column, and a load sensor is arranged on the right side of the load pressure block.

[0027] Features Traditional Sensors C2A Strain Gauge Sensor Accuracy 1％ 0.05％ Sensitivity 10MV ​​to 20MV 2MV to 10MV life 5 years 10 years

[0028] The motion sensor described in the utility model preferably adopts

[0029] The C2A strain gauge sensor produced by HBM Test and Measurement has high sensitivity and can capture tiny strain changes. It is suitable for measurements with high precision requirements. This sensor has high reliability and stability, can provide accurate and reliable measurement results, and can maintain stability after long-term use. The sensor is stable over a wide temperature range and will not be affected by temperature changes, ensuring the accuracy of the measurement. It has strong anti-interference ability and can effectively resist external interference to ensure the accuracy and stability of the measurement results. Due to its stability and reliability, the C2A strain gauge sensor has a long service life and does not require frequent replacement or maintenance, saving cost and time.

[0030] In this utility model device, when the manhole cover is placed on the manhole cover pad, four fixed impact blocks will fix the manhole cover in the middle position of the manhole cover pad to ensure that the manhole cover is firmly fixed in place during the test. Next, the load cylinder will start working and apply pressure to the manhole cover. The load sensor is responsible for real-time monitoring of the pressure on the manhole cover and transmitting the collected data to the control system microcontroller. After receiving the data from the load sensor, the control system microcontroller will process and analyze the data. According to the preset program and algorithm, the control system microcontroller will control the load cylinder to apply appropriate pressure and monitor the movement of the manhole cover. At the same time, the control system microcontroller will send the processed data to the display for real-time display, so that the user can view the bearing capacity test data of the manhole cover at any time. The design structure of the entire system enables the manhole cover to be subjected to accurately controlled pressure while maintaining a stable position during the test. Through the collaborative work between the load sensor, the control system microcontroller and the display, the user can easily monitor and evaluate the performance of the manhole cover to ensure that the manhole cover meets relevant standards and requirements.

[0031] In the utility model, the sensor collects the pressure and movement data of the manhole cover, and then transmits the data to the control system single chip microcomputer through Bluetooth technology. The control system single chip microcomputer receives and processes the sensor data, and then controls the operation of the entire test device. At the same time, the control system single chip microcomputer is also responsible for sending the processed data to the display for display. In this way, the user can monitor the bearing capacity test data of the manhole cover in real time, so as to evaluate the performance and safety of the manhole cover. The design of the entire system makes the testing process more intelligent and convenient, and improves the testing efficiency and accuracy.

[0032] In the circuit design of the utility model, the PLC circuit sensor module (collecting manhole cover data) is connected to the input port of the PLC through the input module to read the pressure and motion data of the manhole cover. The Bluetooth module is connected to the communication interface of the PLC to receive the sensor data and transmit it to the control system microcontroller through Bluetooth technology. The control system microcontroller receives the data transmitted from the Bluetooth module through the communication interface of the PLC, and then processes and analyzes the data. The digital output port of the PLC is connected to each actuator of the test device to achieve precise control of the entire test device. The control system microcontroller sends the processed data to the connected display through the communication interface of the PLC, and displays the bearing capacity test data of the manhole cover in real time, which is convenient for users to monitor and evaluate the performance and safety of the manhole cover. Through the above configuration, the PLC, as the control core, realizes sensor data acquisition, Bluetooth data transmission, control system microcontroller data processing and operation control of the entire test device, and is also responsible for the data display function, making the test process more intelligent and convenient, and improving the test efficiency and accuracy.

[0033] In this embodiment, the manhole cover pad is square in design, the surface of the fixed impact block is arc-shaped, four fixed impact blocks are distributed in a square shape, one end of the cylinder fixing plate is connected to the fixing column, and the display can slide up and down along the fixing column.

[0034] The circuit structure part of the patent drawings disclosed by the utility model is a relatively well-known universal circuit in the industry. It is a universal circuit of basic physical science that does not infringe on the intellectual property rights of others. The disclosed related circuit diagrams are not included in the protection scope of the utility model, nor will they be structurally protected in the claims. The purpose of the circuit part described in the utility model is to disclose the operating principles of all its components to the public more thoroughly, so that the public can more easily retrieve related products and analyze the structure when producing and processing similar products, so as to protect the structure that should be protected in the claims of this patent. Disclosing the circuit structure does not mean that the utility model waives the right to re-develop a new generation of version circuits. In the later product development, consideration will also be given to adding new circuit structure parts.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dynamic and static test device for the bearing capacity of a manhole cover and a manhole grate, comprising a manhole cover pad (1), characterized in that: A fixed impact block (2) is installed above the manhole cover pad (1), an impact cylinder (3) is installed on the left side of the fixed impact block (2), a cylinder fixing plate (4) is installed on the left side of the impact cylinder (3), a fixed column (12) is installed on the left side of the manhole cover pad (1), a display (10) is nested outside the fixed column (12), a Bluetooth receiver (9) is installed on the display (10), a motion sensor (11) is installed below the display (10), a load cylinder (8) is installed above the fixed column (12), a cylinder column (7) is installed below the load cylinder (8), a load pressure block (5) is installed below the cylinder column (7), and a load sensor (6) is arranged on the right side of the load pressure block (5).

2. The dynamic and static testing device for the bearing capacity of a manhole cover and a manhole grating according to claim 1 is characterized by: The manhole cover pad (1) is designed to be square.

3. The dynamic and static testing device for the bearing capacity of manhole covers and grates according to claim 1 is characterized in that: The surface of the fixed impact block (2) is designed to be curved.

4. The dynamic and static testing device for the bearing capacity of manhole covers and grates according to claim 1 is characterized by: The four fixed impact blocks (2) are distributed in a square shape.

5. The dynamic and static testing device for the bearing capacity of manhole covers and grates according to claim 1 is characterized by: One end of the cylinder fixing plate (4) is connected to a fixing column (12).

6. A dynamic and static testing device for the bearing capacity of a manhole cover and a manhole grating according to claim 1, characterized in that: The display (10) can slide up and down along the fixing column (12).

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