Microcomputer-controlled well lid pressure testing machine

Abstract

The utility model relates to a microcomputer-controlled manhole cover pressure testing machine, which comprises a mounting bottom plate and a testing assembly, the test assembly is arranged on the top surface of the mounting bottom plate; the test assembly comprises a slide way unit, a test unit and a clamping unit, the slide way unit comprises a rectangular frame and two servo slide rails, the bottom end of the rectangular frame is connected with the top surface of the mounting bottom plate, and the two servo slide rails are arranged on the two opposite inner side walls of the rectangular frame respectively; the two opposite ends of the testing unit are connected with the sliding blocks on the two servo sliding rails respectively, and the testing unit can slide along tracks of the servo sliding rails. The clamping unit is arranged on the top surface of the mounting bottom plate, is located in the slide way unit and is arranged corresponding to the testing unit; according to the well lid stress testing device, the servo sliding rail is arranged, and the servo sliding rail has the high-precision positioning characteristic, so that it is ensured that force application in the testing process is more accurate and controllable, the real stress conditions of the well lid under different pressures can be accurately simulated, and the accuracy of the testing result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to manhole cover pressure test technical field especially is related to a microcomputer control manhole cover pressure testing machine. BACKGROUND

[0002] At present, manhole cover pressure testing machine is a kind of equipment specially used for testing the performance and durability of manhole cover under pressure. It is widely used in municipal engineering, road construction, building material testing and other fields, and it is of great significance to ensure the quality and safety of manhole cover. It can simulate the pressure load that manhole cover may bear in actual use environment, so as to evaluate the performance indicators such as load capacity, deformation and rupture strength of manhole cover.

[0003] However, the traditional microcomputer control manhole cover pressure testing machine lacks self-adaptive clamping system, which may cause displacement or inclination of manhole cover during testing, further affecting the accuracy of test data. The traditional device may need to manually adjust the clamp to adapt to manhole covers of different sizes, which not only increases the complexity of operation, but also prolongs the preparation time of test. During manual adjustment of clamp or operation, if the operation is improper or the clamp design is unreasonable, it may increase the risk of injury to the operator. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a microcomputer control manhole cover pressure testing machine, which has the advantages of improving the accuracy of test data and ensuring the safety of test personnel.

[0005] The above utility model of the utility model is realized by the following technical scheme: a microcomputer control manhole cover pressure testing machine, comprising a mounting base and a test assembly; the test assembly is arranged on the top surface of the mounting base; the test assembly comprises a slide unit, a test unit and a clamping unit; the slide unit comprises a rectangular frame and two servo slide rails; the bottom end of the rectangular frame is connected with the top surface of the mounting base; two servo slide rails are arranged on the opposite two inner side walls of the rectangular frame; the opposite two ends of the test unit are connected with the sliding blocks on the two servo slide rails respectively; the test unit can slide along the track of the servo slide rail; the clamping unit is arranged on the top surface of the mounting base; the clamping unit is arranged in the slide unit and corresponds to the test unit; the clamping unit is used for fixing the manhole cover to be tested; the test unit is used for pressure testing of the manhole cover to be tested.

[0006] Preferably, the microcomputer-controlled manhole cover pressure testing machine provided by this utility model includes a clamping unit comprising a clamping plate, multiple clamping arms, and a rotating unit. The bottom surface of the clamping plate is connected to the top surface of the mounting base plate via a mounting block. The multiple clamping arms are slidably connected to the clamping plate and are spaced apart along the circumference of the clamping plate. The rotating unit is disposed on the clamping plate, and one end of each clamping arm is slidably inserted into the rotating unit. The rotating unit is used to drive the multiple clamping arms to slide. The manhole cover to be tested is placed on the top surface of the rotating unit, and the multiple clamping arms are driven to slide inward by the rotating unit to clamp and fix the manhole cover to be tested.

[0007] Preferably, in the microcomputer-controlled manhole cover pressure testing machine provided by this utility model, the clamping plate is provided with multiple sliding grooves, all of which extend radially along the clamping plate, and the multiple sliding grooves are arranged in a radial pattern, with each sliding groove corresponding to a clamping arm.

[0008] Preferably, the microcomputer-controlled manhole cover pressure testing machine provided by this utility model includes an arc-shaped clamping part, a sliding rod, and a limiting rod in the clamping arm. The first end of the sliding rod is connected to the inner wall near the bottom end of the arc-shaped clamping part. The limiting rod is disposed on the top surface near the second end of the sliding rod. The sliding rod is adapted to the sliding groove. The sliding rod is inserted into the sliding groove and can slide along the sliding groove.

[0009] Preferably, in the microcomputer-controlled manhole cover pressure testing machine provided by this utility model, the rotating unit includes a motor, a driving gear, and a driven gear. The motor is fixed to the bottom surface of the clamping plate, and the output shaft of the motor passes through the clamping plate and is inserted into the driving gear. The driving gear can rotate relative to the clamping plate, and the output shaft of the motor can drive the driving gear to rotate. The driven gear is rotatably connected to the clamping plate through a rotating shaft, and the driven gear meshes with the driving gear. The rotation of the driving gear can drive the driven gear to rotate. The driven gear has multiple arc-shaped grooves spaced apart along its circumference. Each arc-shaped groove corresponds to a sliding groove. The end of the limiting rod facing away from the sliding rod is inserted into an arc-shaped groove, allowing it to slide along the groove. The output shaft of the motor drives the driving gear to rotate, which in turn drives the driven gear to rotate. As the driven gear rotates, it moves the limiting rod through the arc-shaped groove, causing the sliding rod to slide along the groove.

[0010] Preferably, in the microcomputer-controlled manhole cover pressure testing machine provided by this utility model, the rotating unit further includes a partition plate, which is disposed at the top of the rotating shaft. A gap is left between the partition plate and the driven gear, and the manhole cover to be tested is placed on the top surface of the partition plate.

[0011] Preferably, in the microcomputer-controlled manhole cover pressure testing machine provided by this utility model, the partition plate is provided with an anti-slip ring to prevent the manhole cover to be tested from sliding.

[0012] Preferably, the microcomputer-controlled manhole cover pressure testing machine provided by this utility model includes a testing unit comprising a connecting plate, a pressure sensor, and a pressure plate. The two opposite ends of the connecting plate are respectively connected to sliders on two servo slide rails. The connecting plate can slide along the track of the servo slide rails. The pressure sensor is disposed at the bottom end of the connecting plate, and the pressure plate is disposed at the end of the pressure sensor opposite to the connecting plate.

[0013] Preferably, in the microcomputer-controlled manhole cover pressure testing machine provided by this utility model, a plurality of friction balls are arranged on the side of the pressure plate away from the pressure sensor, and each pair of adjacent friction balls are spaced apart.

[0014] Preferably, in the microcomputer-controlled manhole cover pressure testing machine provided by this utility model, the friction ball is made of rubber.

[0015] In summary, the beneficial technical effects of this utility model are as follows: The microcomputer-controlled manhole cover pressure testing machine provided in this application includes a mounting base plate and a testing component; the testing component is disposed on the top surface of the mounting base plate; the testing component includes a slide unit, a testing unit, and a clamping unit. The slide unit includes a rectangular frame and two servo slide rails. The bottom end of the rectangular frame is connected to the top surface of the mounting base plate. The two servo slide rails are respectively disposed on the two opposite inner sidewalls of the rectangular frame. The opposite ends of the testing unit are respectively connected to the sliders on the two servo slide rails, and the testing unit can slide along the track of the servo slide rails; the clamping unit... The unit is set on the top surface of the mounting base plate, and the clamping unit is located inside the slide rail unit and corresponding to the testing unit. The clamping unit is used to fix the manhole cover to be tested. The testing unit is used to perform pressure testing on the manhole cover to be tested. On the one hand, by setting a servo slide rail, which has high-precision positioning characteristics, the force applied during the test is ensured to be more accurate and controllable, which helps to accurately simulate the real stress of the manhole cover under different pressures, thereby improving the accuracy of the test results. On the other hand, by setting a clamping unit, the safety of the test personnel is ensured compared with the manual adjustment of the clamp in the traditional method. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the microcomputer-controlled manhole cover pressure testing machine provided in this embodiment of the utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the overall structure of the microcomputer-controlled manhole cover pressure testing machine provided in this embodiment of the utility model. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the clamping unit in the microcomputer-controlled manhole cover pressure testing machine provided in this embodiment of the utility model. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the clamping unit in the microcomputer-controlled manhole cover pressure testing machine provided in this embodiment of the utility model. Figure 2 .

[0020] Figure 5 This is a schematic diagram of the clamping unit in the microcomputer-controlled manhole cover pressure testing machine provided in this embodiment of the utility model. Figure 3 .

[0021] Figure 6 This is a schematic diagram of the clamping plate in the microcomputer-controlled manhole cover pressure testing machine provided in this embodiment of the utility model.

[0022] Figure 7 This is a schematic diagram of the clamping arm in the microcomputer-controlled manhole cover pressure testing machine provided in this embodiment of the utility model.

[0023] In the diagram, 1. Microcomputer-controlled manhole cover pressure testing machine; 10. Mounting base plate; 11. Casters; 12. Placement plate; 121. Through hole; 20. Test assembly; 21. Slide unit; 211. Rectangular frame; 212. Servo slide rail; 22. Test unit; 221. Connecting plate; 222. Pressure sensor; 223. Pressure plate; 2231. Friction ball; 23. Clamping unit; 231. Clamping plate; 2311. Slide... 2312, Groove; 232, Stop plate; 232, Clamping arm; 2321, Arc-shaped clamping part; 2322, Slide rod; 2323, Limiting rod; 2324, Limiting plate; 2325, Clamping strip; 233, Rotating unit; 2331, Motor; 2332, Driving gear; 2333, Driven gear; 2334, Rotating shaft; 2335, Arc-shaped groove; 2336, Partition plate; 2337, Anti-slip ring; 234, Mounting block. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 and Figure 2This utility model discloses a microcomputer-controlled manhole cover pressure testing machine 1, comprising a mounting base plate 10 and a testing component 20. The testing component 20 is disposed on the top surface of the mounting base plate 10. The testing component 20 includes a slide rail unit 21, a testing unit 22, and a clamping unit 23. The slide rail unit 21 includes a rectangular frame 211 and two servo slide rails 212. The bottom end of the rectangular frame 211 is connected to the top surface of the mounting base plate 10. The two servo slide rails 212 are respectively disposed on opposite inner side walls of the rectangular frame 211. The opposite ends of the testing unit 22 are respectively connected to sliders on the two servo slide rails 212. The testing unit 22 can slide along the track of the servo slide rail 212. The clamping unit 23 is located on the top surface of the mounting base plate 10, within the slide rail unit 21, and corresponding to the testing unit 22. The clamping unit 23 is used to fix the manhole cover to be tested. The testing unit 22 is used to perform pressure testing on the manhole cover to be tested. On the one hand, by setting the servo slide rail 212, which has high-precision positioning characteristics, the force applied during the test is ensured to be more precise and controllable, which helps to accurately simulate the real stress of the manhole cover under different pressures, thereby improving the accuracy of the test results. On the other hand, by setting the clamping unit 23, compared with the manual adjustment of the clamp in the traditional method, the safety of the test personnel is guaranteed.

[0026] Specifically, the bottom of the rectangular frame 211 is open, so as to... Figure 1 Taking the orientation shown as an example, two servo slide rails 212 are respectively set on the inner sidewalls of the left and right sides of the rectangular frame 211, and the test unit 22 can slide up or down along the track of the servo slide rail 212.

[0027] It should be noted that the structure of the servo slide rail 212 is well known to those skilled in the art, and the structure of the servo slide rail 212 will not be described in detail in this embodiment.

[0028] The working principle of the servo slide rail 212 is as follows: when the slider needs to move to a certain position, the controller will send a corresponding number of pulse signals to the servo motor 2331 in the servo slide rail 212. The servo motor 2331 rotates at a corresponding angle according to the received pulse signals, and drives the slider to move along the track through the transmission mechanism (such as gears or belts). The encoder inside the servo motor 2331 monitors the motion status of the servo motor 2331 in real time and sends the feedback signal to the controller to form a closed-loop control, ensuring that the slider accurately reaches the designated position.

[0029] In this embodiment, a placement plate 12 is provided on the top surface of the mounting base plate 10. The placement plate 12 is located inside the slide unit 21. A through hole 121 is provided on the placement plate 12. The bottom end of the clamping unit 23 is connected to the top surface of the mounting base plate 10, and the top end of the clamping unit 23 extends upward through the through hole 121. By providing the placement plate 12, the three-dimensionality of the microcomputer-controlled manhole cover pressure testing machine 1 is improved.

[0030] To facilitate the movement of the microcomputer-controlled manhole cover pressure testing machine 1, two pairs of casters 11 are provided on the bottom surface of the mounting base plate 10. The two pairs of casters 11 are spaced apart along the length of the mounting base plate 10. By providing the casters 11, the microcomputer-controlled manhole cover pressure testing machine 1 can rotate freely at multiple angles on the horizontal plane. This allows the microcomputer-controlled manhole cover pressure testing machine 1 to move easily between different positions without the need for laborious handling or direction adjustment. Whether on flat ground or slightly uneven areas, the casters 11 can provide stable movement performance, ensuring that the microcomputer-controlled manhole cover pressure testing machine 1 can smoothly reach the test location.

[0031] Continue to refer to Figures 1 to 5 In this embodiment, the clamping unit 23 includes a clamping plate 231, a plurality of clamping arms 232, and a rotating unit 233. The bottom surface of the clamping plate 231 is connected to the top surface of the mounting base plate 10 via a mounting block 234. The plurality of clamping arms 232 are slidably connected to the clamping plate 231 and are spaced apart along the circumference of the clamping plate 231. The rotating unit 233 is disposed on the clamping plate 231, and one end of each clamping arm 232 is slidably inserted into the rotating unit 233. The rotating unit 233 is used to drive the plurality of clamping arms 232. 2. Sliding: The manhole cover to be tested is placed on the top surface of the rotating unit 233. The rotating unit 233 drives multiple clamping arms 232 to slide inward to clamp and fix the manhole cover to be tested. By setting the clamping arms 232, adjustments can be made according to manhole covers of different sizes to achieve stable clamping and centering, ensuring stability and safety during the testing process. At the same time, it improves the flexibility and applicability of the test. The automatic centering function and precise force control can effectively reduce the risk of manhole cover displacement or damage during the test, ensuring the safety of test personnel and equipment.

[0032] Specifically, the bottom end of the mounting block 234 is connected to the top surface of the mounting base plate 10, the top end of the mounting block 234 extends upward through the through hole 121, and the bottom surface of the clamping plate 231 is connected to the top end of the mounting block 234.

[0033] Continue to refer to Figure 5 and Figure 6In this embodiment, the clamping plate 231 is disc-shaped and has multiple sliding grooves 2311. The sliding grooves 2311 extend radially along the clamping plate 231 and are arranged in a radial pattern. The sliding grooves 2311 correspond one-to-one with the clamping arms 232.

[0034] To prevent the clamping arm 232 from moving out of the slide groove 2311, stop plates 2312 are provided on both sides of the upper opening of the slide groove 2311, and the stop plates 2312 extend inward.

[0035] It should be noted that the number of slides 2311 is basically the same as the number of clamping arms 232.

[0036] Continue to refer to Figure 5 and Figure 7 In this embodiment, the clamping arm 232 includes an arc-shaped clamping part 2321, a sliding rod 2322, and a limiting rod 2323. The first end of the sliding rod 2322 is connected to the inner wall near the bottom end of the arc-shaped clamping part 2321. The limiting rod 2323 is disposed on the top surface near the second end of the sliding rod 2322. The sliding rod 2322 is adapted to the sliding groove 2311. The sliding rod 2322 is inserted into the sliding groove 2311 and can slide along the sliding groove 2311.

[0037] Specifically, the center line of the limiting rod 2323 is set perpendicular to the extension direction of the slide rod 2322.

[0038] To prevent the manhole cover to be tested from moving out of the clamping arm 232, a limiting plate 2324 is provided on the inner wall near the top of the clamping part. The limiting plate 2324 extends inward and is located at the top of the manhole cover when it is clamped.

[0039] The clamping part has a clamping strip 2325 on its inner wall, which is made of rubber. When clamping the manhole cover to be tested, the clamping strip 2325 contacts the outer peripheral wall of the manhole cover, thereby preventing damage to the manhole cover.

[0040] Continue to refer to Figures 3 to 5 In this embodiment, the rotating unit 233 includes a motor 2331, a driving gear 2332, and a driven gear 2333. The motor 2331 is fixed to the bottom surface of the clamping plate 231. The output shaft of the motor 2331 passes through the clamping plate 231 and is inserted into the driving gear 2332. The driving gear 2332 can rotate relative to the clamping plate 231. The output shaft of the motor 2331 can drive the driving gear 2332 to rotate. The driven gear 2333 is rotatably connected to the clamping plate 231 through a rotating shaft 2334. The driven gear 2333 meshes with the driving gear 2332. The rotation of the driving gear 2332 can drive the driven gear 2333 to rotate.

[0041] Specifically, the center line of the output shaft of the motor 2331 is set parallel to the center line of the rotating shaft 2334, and the center line of the rotating shaft 2334 is set collinear with the center line of the clamping plate 231.

[0042] The rotating shaft 2334 is located at the geometric center of the clamping plate 231. The bottom end of the rotating shaft 2334 is connected to the top surface of the clamping plate 231, and the top end of the rotating shaft 2334 extends upward along the center line of the clamping plate 231 and passes through the driven gear 2333.

[0043] Continue to refer to Figure 5 In this embodiment, the driven gear 2333 is provided with multiple arc-shaped grooves 2335, which are spaced apart along the circumference of the driven gear 2333. The arc-shaped grooves 2335 and the sliding grooves 2311 are arranged in a one-to-one correspondence. The end of the limiting rod 2323 away from the sliding rod 2322 is inserted into the arc-shaped groove 2335, and the limiting rod 2323 can slide along the arc-shaped groove 2335.

[0044] It should be noted that the number of arc-shaped grooves 2335 is basically the same as the number of sliding grooves 2311.

[0045] During use, the end of the slide rod 2322 away from the clamping part is inserted into the slide groove 2311, and the limiting rod 2323 on the slide rod 2322 is inserted into the arc groove 2335. The output shaft of the motor 2331 drives the drive gear 2332 to rotate, and the drive gear 2332 drives the driven gear 2333 to rotate. While the driven gear 2333 rotates, it will cause the limiting rod 2323 to move through the arc groove 2335. While the limiting rod 2323 moves, it will drive the slide rod 2322 to slide along the slide groove 2311. The slide rod 2322 drives the clamping part to move inward to clamp the well cover to be tested.

[0046] Continue to refer to Figure 4 In this embodiment, the rotating unit 233 further includes a partition 2336, which is disposed at the top of the rotating shaft 2334. A gap is left between the partition 2336 and the driven gear 2333. The manhole cover to be tested is placed on the top surface of the partition 2336. The partition 2336 provides support for the manhole cover to be tested.

[0047] Specifically, the partition 2336 is disc-shaped, and the center line of the partition 2336 is parallel to the center line of the rotating shaft 2334. In some feasible embodiments, the center line of the partition 2336 is collinear with the center line of the rotating shaft 2334.

[0048] In this embodiment, the partition 2336 is provided with an anti-slip ring 2337 to prevent the manhole cover to be tested from sliding; by providing the anti-slip ring 2337, the stability of the manhole cover to be tested is improved.

[0049] Continue to refer toFigure 1 and Figure 2 In this embodiment, the test unit 22 includes a connecting plate 221, a pressure sensor 222, and a pressure plate 223. The two ends of the connecting plate 221 are respectively connected to the sliders on the two servo slide rails 212. The connecting plate 221 can slide along the track of the servo slide rail 212. The pressure sensor 222 is disposed at the bottom end of the connecting plate 221, and the pressure plate 223 is disposed at the end of the pressure sensor 222 away from the connecting plate 221. By setting the pressure sensor 222, the pressure sensor can set safety limit parameters to prevent equipment damage or personal injury caused by overload.

[0050] During use, after the clamping arm 232 clamps and fixes the manhole cover to be tested, the servo slide rail 212 is activated. The connecting plate 221 drives the pressure sensor 222 and the pressure plate 223 to move vertically downward. The pressure sensor and the pressure plate 223 press against the top surface of the manhole cover. At this time, the connecting plate 221 is moved, and the manhole cover can be tested through the pressure sensor. The high-precision positioning characteristics of the servo slide rail 212 ensure that the force applied during the test is more accurate and controllable, which helps to accurately simulate the real stress of the manhole cover under different pressures, thereby improving the accuracy of the test results.

[0051] Furthermore, in this embodiment, a plurality of friction balls 2231 are provided on the side of the pressure plate 223 away from the pressure sensor 222, with each pair of adjacent friction balls 2231 spaced apart.

[0052] Among them, the friction ball 2231 is made of rubber.

[0053] By setting friction balls 2231, which have good elasticity and shock absorption performance, when the test unit 22 applies pressure to the manhole cover, the friction balls 2231 can absorb part of the impact energy, reducing vibration and noise generation. This not only protects the manhole cover from damage that may be caused by sudden impact, but also reduces noise pollution during the test process, providing operators with a more comfortable working environment.

[0054] The testing process of the microcomputer-controlled manhole cover pressure testing machine 1 provided in this embodiment is as follows: The manhole cover to be tested is placed on the partition 2336 and located inside the clamping arm 232. At this time, the motor 2331 is started. The output shaft of the motor 2331 drives the driving gear 2332 to rotate. The driving gear 2332 drives the driven gear 2333 to rotate. While the driven gear 2333 is rotating, it will force the limiting rod 2323 to move along the arc groove 2335 through the arc groove 2335. While the limiting rod 2323 is moving, it will drive the sliding rod 23 22 slides towards the center of the clamping plate 231, and the slide rod 2322 drives the clamping part to move towards the center to clamp it. The clamping part clamps and fixes the manhole cover to be tested. At the same time, the partition plate 2336 and the anti-slip ring 2337 can support the manhole cover to be tested and increase its stability. At this time, the servo slide rail 212 is activated, and the connecting plate 221 drives the pressure sensor and the pressure plate 223 to move vertically downward. The pressure sensor and the pressure plate 223 press against the top surface of the manhole cover to be tested. At this time, the connecting plate 221 is moved, and the manhole cover to be tested can be tested through the pressure sensor. The high-precision positioning characteristics of the servo slide rail 212 ensure more accurate and controllable force application during the testing process, which helps to accurately simulate the real stress situation of the manhole cover under different pressures, thereby improving the accuracy of the test results. In addition, the microcomputer-controlled manhole cover pressure testing machine 1 adopts an adaptive clamping design, which can be adjusted according to different sizes of manhole covers to achieve stable clamping and centering, ensuring the stability and safety of the testing process. This avoids the cumbersome process of changing or adjusting clamps in traditional methods, improving the flexibility and applicability of the test. The automatic centering function and precise force control can effectively reduce the risk of manhole cover displacement or breakage during the test, ensuring the safety of testing personnel and equipment. At the same time, the pressure sensor can set safety limit parameters, such as the maximum pressure value, to prevent equipment damage or personal injury caused by overload.

[0055] The microcomputer-controlled manhole cover pressure testing machine 1 provided in this application includes a mounting base plate 10 and a testing component 20. The testing component 20 is disposed on the top surface of the mounting base plate 10. The testing component 20 includes a slide rail unit 21, a testing unit 22, and a clamping unit 23. The slide rail unit 21 includes a rectangular frame 211 and two servo slide rails 212. The bottom end of the rectangular frame 211 is connected to the top surface of the mounting base plate 10. The two servo slide rails 212 are respectively disposed on the two opposite inner side walls of the rectangular frame 211. The opposite ends of the testing unit 22 are respectively connected to the sliders on the two servo slide rails 212. The testing unit 22 can slide along the track of the servo slide rail 212. The holding unit 23 is disposed on the top surface of the mounting base plate 10. The clamping unit 23 is located inside the slide rail unit 21 and is correspondingly disposed with the testing unit 22. The clamping unit 23 is used to fix the manhole cover to be tested. The testing unit 22 is used to perform pressure testing on the manhole cover to be tested. On the one hand, by setting the servo slide rail 212, which has high-precision positioning characteristics, the force applied during the test is more accurate and controllable, which helps to accurately simulate the real stress of the manhole cover under different pressures, thereby improving the accuracy of the test results. On the other hand, by setting the clamping unit 23, compared with the manual adjustment of the clamp in the traditional method, the safety of the test personnel is guaranteed.

[0056] The microcomputer-controlled manhole cover pressure testing machine 1 provided by this utility model has the following advantages: the device has a simple structure, is easy to manufacture, and is easy to operate.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A microcomputer-controlled manhole cover pressure testing machine, characterized in that: Including mounting base plate and test components; The test component is disposed on the top surface of the mounting base plate; The test assembly includes a slide rail unit, a test unit, and a clamping unit. The slide rail unit includes a rectangular frame and two servo slide rails. The bottom end of the rectangular frame is connected to the top surface of the mounting base plate. The two servo slide rails are respectively disposed on the two opposite inner sidewalls of the rectangular frame. The opposite ends of the test unit are respectively connected to the sliders on the two servo slide rails. The test unit can slide along the track of the servo slide rails. The clamping unit is disposed on the top surface of the mounting base plate, and the clamping unit is located inside the slide rail unit and is disposed corresponding to the test unit; The clamping unit is used to fix the well cover to be tested; The testing unit is used to perform pressure tests on the manhole cover to be tested.

2. The microcomputer-controlled manhole cover pressure testing machine according to claim 1, characterized in that: The clamping unit includes a clamping plate, multiple clamping arms, and a rotating unit. The bottom surface of the clamping plate is connected to the top surface of the mounting base plate via a mounting block. The multiple clamping arms are slidably connected to the clamping plate and are spaced apart along the circumference of the clamping plate. The rotating unit is disposed on the clamping plate, and one end of each clamping arm is slidably inserted into the rotating unit. The rotating unit is used to drive the multiple clamping arms to slide. The manhole cover to be tested is placed on the top surface of the rotating unit, and the rotating unit drives multiple clamping arms to slide inward to clamp and fix the manhole cover to be tested.

3. The microcomputer-controlled manhole cover pressure testing machine according to claim 2, characterized in that: The clamping plate has multiple sliding grooves, all of which extend radially along the clamping plate. The multiple sliding grooves are arranged in a radial pattern, and each sliding groove corresponds to a clamping arm.

4. The microcomputer-controlled manhole cover pressure testing machine according to claim 3, characterized in that: The clamping arm includes an arc-shaped clamping part, a sliding rod, and a limiting rod. The first end of the sliding rod is connected to the inner wall near the bottom end of the arc-shaped clamping part. The limiting rod is disposed on the top surface near the second end of the sliding rod. The sliding rod is adapted to the sliding groove and is inserted into the sliding groove. The sliding rod can slide along the sliding groove.

5. The microcomputer-controlled manhole cover pressure testing machine according to claim 4, characterized in that: The rotating unit includes a motor, a driving gear, and a driven gear. The motor is fixed to the bottom surface of the clamping plate. The output shaft of the motor passes through the clamping plate and is inserted into the driving gear. The driving gear can rotate relative to the clamping plate. The output shaft of the motor can drive the driving gear to rotate. The driven gear is rotatably connected to the clamping plate through a rotating shaft. The driven gear meshes with the driving gear. The rotation of the driving gear can drive the driven gear to rotate. The driven gear has multiple arc-shaped grooves, which are spaced apart along the circumference of the driven gear. The arc-shaped grooves correspond one-to-one with the sliding grooves. The end of the limiting rod away from the sliding rod is inserted into the arc-shaped groove, and the limiting rod can slide along the arc-shaped groove. The output shaft of the motor drives the drive gear to rotate, the drive gear drives the driven gear to rotate, and the driven gear rotates while the driven gear rotates, causing the limiting rod to move through the arc groove. As the limiting rod moves, it causes the slide rod to slide along the slide groove.

6. The microcomputer-controlled manhole cover pressure testing machine according to claim 5, characterized in that: The rotating unit also includes a partition plate, which is disposed at the top of the rotating shaft. A gap is left between the partition plate and the driven gear, and the well cover to be tested is placed on the top surface of the partition plate.

7. The microcomputer-controlled manhole cover pressure testing machine according to claim 6, characterized in that: The partition is equipped with an anti-slip ring to prevent the manhole cover to be tested from sliding.

8. The microcomputer-controlled manhole cover pressure testing machine according to claim 1, characterized in that: The test unit includes a connecting plate, a pressure sensor, and a pressure plate. The two opposite ends of the connecting plate are respectively connected to sliders on the two servo slide rails. The connecting plate can slide along the track of the servo slide rails. The pressure sensor is located at the bottom of the connecting plate, and the pressure plate is located at the end of the pressure sensor opposite to the connecting plate.

9. The microcomputer-controlled manhole cover pressure testing machine according to claim 8, characterized in that: The pressure plate has multiple friction balls on the side opposite to the pressure sensor, with each pair of adjacent friction balls spaced apart.

10. The microcomputer-controlled manhole cover pressure testing machine according to claim 9, characterized in that: The friction ball is made of rubber.

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