A dam strength detection device for water conservancy detection

Abstract

The utility model belongs to hydraulic engineering detection technical field discloses a dam strength detection device for hydraulic engineering detection, including the detection stage, the top of detection stage is equipped with the support that is U-shaped, is installed with vertical downward first electric cylinder on the support, the bottom of first electric cylinder is equipped with the press block, the bottom face of press block is equipped with a plurality of pressure sensors, the top of detection stage is equipped with the positioning recess, the top of positioning recess is equipped with the protective fence that surrounds in the side of positioning recess, the output shaft of first electric cylinder is equipped with the pressure rod that is connected with the press block, is equipped with two limit plates on the pressure rod, is equipped with the splash-proof cover and the return spring that sets up between two limit plates on the pressure rod. The utility model discloses the cooperation and setting of protective fence and splash-proof cover can prevent the condition that dam sample breaks and splashes in the process of pressing, effectively protects the safety of operator, and reset spring guarantees that splash-proof cover resets automatically, improves the stability and repeatability of detection process.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering testing technology, and in particular to a dam strength testing device for water conservancy engineering testing. Background Technology

[0002] In the process of water conservancy project construction, in order to ensure quality and safety, it is usually necessary to test the strength of the dam, including the strength of the dam concrete structure. The traditional method is to cut a small piece and then test its strength by squeezing it with a pressure testing machine.

[0003] Currently, the strength testing of dams in water conservancy projects mostly involves manual sampling followed by pressure testing. However, existing dam strength testing devices have simple structures and lack effective protective functions. During the testing process, debris is easily scattered, which may cause injury to the operators. Utility Model Content

[0004] To overcome the technical defects of the existing technology, this utility model provides a dam strength testing device for water conservancy engineering testing.

[0005] The technical solution adopted by this utility model is: a dam strength testing device for water conservancy engineering testing, including a testing platform. The top of the testing platform is provided with a U-shaped bracket. A vertically downward first electric cylinder is installed on the bracket. The bottom end of the first electric cylinder is provided with a pressure block. The bottom end face of the pressure block is provided with multiple pressure sensors. The top of the testing platform is provided with a positioning groove. The top of the positioning groove is provided with a protective plate surrounding the side of the positioning groove. The output shaft of the first electric cylinder is provided with a pressure rod connected to the pressure block. The pressure rod is provided with two limiting plates. A splash guard and a return spring are sleeved on the pressure rod between the two limiting plates. The return spring is located above the splash guard. The height of the protective plate is not less than 50mm. The diameter of the splash guard is larger than the opening diameter of the positioning groove.

[0006] Preferably, the bottom end of the pressure rod is connected to the pressure block via a fixing member.

[0007] Preferably, the fixing member includes a rectangular connecting block at the bottom of the pressure rod, a connecting groove matching the connecting block at the top of the pressure block, and through holes on both the connecting block and the pressure block, with a T-shaped first limiting plate inserted through the through holes.

[0008] Preferably, the portion of the first limiting plate extending from the through hole is provided with a locking hole, and a T-shaped second limiting plate is inserted into the locking hole. The first limiting plate is provided with a locking screw that locks with the second limiting plate.

[0009] Preferably, the testing station has two mounting plates on one side, a conveyor belt between the two mounting plates, and a first notch on the mounting plate closest to the testing station.

[0010] Preferably, a second electric cylinder is mounted on another of the mounting plates. The output shaft of the second electric cylinder is provided with a push plate. The feed end of the push plate is provided with an inclined guide plate, and a baffle plate is provided vertically on the push plate.

[0011] Preferably, the protective enclosure has a second notch at one end near the first notch, the top of the testing platform has a fixed sleeve and a positioning seat, a third electric cylinder is installed on one side of the fixed sleeve, the output shaft of the third electric cylinder has a protective baffle that extends into the fixed sleeve, and the positioning seat has a positioning hole that matches the protective baffle, and the entrance of the positioning hole is tapered.

[0012] Preferably, the inside of the testing platform is provided with a guide slide cavity that communicates with the positioning groove. A load-bearing slide is slidably provided in the guide slide cavity. A fourth electric cylinder connected to the load-bearing slide is installed on one side of the testing platform. The end of the load-bearing slide away from the fourth electric cylinder is provided with an inclined slag guiding surface. The bottom of the testing platform is provided with a slag discharge port that communicates with the guide slide cavity. A slag discharge funnel is provided at the slag discharge port.

[0013] The beneficial effects of this utility model are:

[0014] 1. By combining the protective enclosure and the splash guard, the sample from the dam can be prevented from breaking and splashing during the pressurization process, effectively protecting the safety of the operators. At the same time, the return spring ensures that the splash guard automatically resets, improving the stability and repeatability of the testing process.

[0015] 2. The pressure block can be replaced or maintained to adapt to different testing needs and improve the applicability of the dam strength testing device. Double locking is achieved through the second limit plate and locking screw to prevent loosening and falling off during strength testing.

[0016] 3. Through the coordinated arrangement of conveyor belt, guide plate, baffle plate and push plate, the automatic pushing and positioning of dam sample is realized. The guide plate and baffle plate guide and restrict the position of dam sample to improve positioning accuracy. The opening and closing of the protective baffle plate facilitates the feeding of dam sample and protects against debris splash.

[0017] 4. Through the coordinated design of the fourth electric cylinder, load-bearing slide, slag discharge port, inclined slag guide surface and guide slide cavity, the automatic cleaning of waste material after testing is realized, maintaining the cleanliness of the dam strength testing device, improving continuous operation capability, and reducing the labor intensity of operators. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the splash-proof cover structure of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of the fastener at point A;

[0022] Figure 4 This is a schematic diagram of the connection structure between the splash guard and the pressure rod of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the protective baffle and the protective enclosure of this utility model;

[0024] Figure 6 This is a cross-sectional view of the matching structure of the load-bearing slide and the positioning groove of this utility model;

[0025] Figure 7 This is a cross-sectional view of the load-bearing slide and positioning groove of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Detection table; 2. First electric cylinder; 3. Pressure block; 4. Positioning groove; 5. Protective enclosure; 6. Pressure rod; 7. Limiting plate; 8. Splash guard; 9. Return spring; 10. Connecting block; 11. Connecting groove; 12. Through hole; 13. First limiting insert plate; 14. Locking hole; 15. Second limiting insert plate; 16. Locking screw; 17. Mounting plate; 18. Conveyor belt; 19. First notch; 20. Second electric cylinder; 21. Pushing plate; 22. Guide plate; 23. Baffle plate; 24. Second notch; 25. Fixing sleeve plate; 26. Third electric cylinder; 27. Protective baffle; 28. Positioning seat; 29. ​​Positioning hole; 30. Guide slide cavity; 31. Load-bearing slide; 32. Fourth electric cylinder; 33. Inclined slag guide surface; 34. Slag discharge port. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0028] Example 1, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this embodiment provides a dam strength testing device for water conservancy engineering testing, including a testing platform 1. The top of the testing platform 1 is equipped with a U-shaped support. A PLC controller is installed on the testing platform 1 to control the coordinated actions of the first electric cylinder 2, the second electric cylinder 20, the third electric cylinder 26, and the fourth electric cylinder 32, and to receive data from pressure sensors for real-time display and recording. The first electric cylinder 2 is mounted vertically downward on the support. A pressure block 3 is provided at the bottom of the first electric cylinder 2. Multiple pressure sensors are provided on the bottom surface of the pressure block 3. The multiple pressure sensors are resistance strain gauge pressure sensors. The force sensor, with a range of 0~100MPa, is suitable for strength testing of concrete materials. The top of the testing platform 1 is provided with a positioning groove 4, which can effectively position the dam sample and ensure the strength testing of the dam sample by the pressure block 3. The top of the positioning groove 4 is provided with a protective plate 5 surrounding the side of the positioning groove 4. The output shaft of the first electric cylinder 2 is provided with a pressure rod 6 connected to the pressure block 3. The pressure rod 6 is provided with two limiting plates 7. A splash guard 8 and a return spring 9 are sleeved on the pressure rod 6 between the two limiting plates 7. The return spring 9 is located above the splash guard 8. One end of the return spring 9 is connected to the upper limiting plate 7, and the other end is connected to the splash guard 8. The height of the protective enclosure 5 is not less than 50mm, and the diameter of the splash guard 8 is larger than the opening diameter of the positioning groove 4. The dam sample is placed in the positioning groove 4, and the output shaft of the first electric cylinder 2 pushes the pressure block 3 downward to apply pressure to the dam sample for strength testing. Under the pressure, the splash guard 8 moves downward and abuts against the top of the protective enclosure 5, compressing the return spring 9. After the test is completed, the return spring 9 resets under its elastic action to prevent debris from falling during the pressure application process. In case of splashing, the protective enclosure 5 and the splash guard 8 work together to prevent the sample from breaking and splashing during the pressurization process, effectively protecting the safety of the operators. At the same time, the return spring 9 ensures that the splash guard 8 automatically resets, improving the stability and repeatability of the testing process. The protective enclosure 5 and the splash guard 8 are made of transparent engineering plastic, allowing real-time observation of the testing process without opening the splash guard 8 and the protective enclosure 5. The transparent engineering plastic has extremely high impact resistance and toughness, effectively blocking high-speed splashing debris, which can meet the needs of the testing scenario and ensure the safety of the operators.

[0029] Specifically, such as Figure 3As shown, the bottom end of the pressure rod 6 is connected to the pressure block 3 via a fixing member. The fixing member includes a rectangular connecting block 10 located at the bottom end of the pressure rod 6. The top end of the pressure block 3 has a connecting groove 11 that matches the connecting block 10. Both the connecting block 10 and the pressure block 3 have through holes 12. A T-shaped first limiting plate 13 passes through the through hole 12. The portion of the first limiting plate 13 extending out of the through hole 12 has a locking hole 14. A T-shaped second limiting plate 15 is inserted into the locking hole 14. The first limiting plate 13 has a locking screw 16 that locks with the second limiting plate 15. An anti-loosening washer is provided between the locking screw 16 and the first limiting plate 13 to further enhance the stability of the connection. When replacing the pressure block 3, the locking screw 16 is loosened and removed. Pull out the second limiting plate 15 from the locking hole 14, and then pull out the first limiting plate 13 from the through hole 12, so that the connecting block 10 is separated from the connecting groove 11, so that the connecting groove 11 on the replacement pressure block 3 matches and is inserted into the connecting block 10. Pass the first limiting plate 13 through multiple through holes 12, and then pass the second limiting plate 15 through the locking hole 14 on the first limiting plate 13. Tighten the locking screw 16 to complete the replacement of the pressure block 3. The pressure block 3 can be replaced or maintained to adapt to different testing needs and improve the applicability of the dam strength testing device. The setting of the second limiting plate 15 and the locking screw 16 realizes double locking, preventing loosening and falling off under the action of vibration or pressure during strength testing, and further enhancing the reliability of the pressure block 3.

[0030] Example 2, as Figure 1 , Figure 2 and Figure 5As shown, a further improvement has been made based on Embodiment 1. Two mounting plates 17 are provided on one side of the testing platform 1, and a conveyor belt 18 is provided between the two mounting plates 17. A first notch 19 is provided on the mounting plate 17 closest to the testing platform 1, and a second electric cylinder 20 is mounted on the other mounting plate 17. The output shaft of the second electric cylinder 20 is provided with a pusher plate 21, and the feed end of the pusher plate 21 is provided with an inclined guide plate 22. A baffle plate 23 is vertically provided on the pusher plate 21. A second notch 24 is provided on the protective enclosure 5 near the first notch 19. A fixed sleeve plate 25 and a positioning seat 28 are provided at the top of the testing platform 1. A third electric cylinder 26 is mounted on one side of the fixed sleeve plate 25, and a protective baffle 27 extends into the fixed sleeve plate 25 from the output shaft of the third electric cylinder 26. The positioning seat 28 is provided with a positioning hole 29 that matches the protective baffle 27, and the entrance of the positioning hole 29 is tapered. The conveyor belt 18 can handle multiple... The process involves conveying dam samples to improve testing efficiency and reduce manual intervention. The dam samples are transported to one side of the testing platform 1. Guided by the guide plate 22 and the push plate 21, the dam samples are brought against the baffle plate 23. The output shaft of the second electric cylinder 20 pushes the push plate 21, and under the action of the baffle plate 23, the dam samples are pushed from the conveyor belt 18 through the first notch 19 onto the testing platform 1, until the dam samples are pushed through the second notch 24 into the positioning groove 4. The output shaft of the third electric cylinder 26 pushes the protective baffle 27 to move until the end of the protective baffle 27 is inserted into the positioning hole 29 of the positioning seat 28. The positioning hole 29 is tapered to facilitate the insertion of the end of the protective baffle 27, realizing the automatic pushing and positioning of the dam samples. The guide plate 22 and the baffle plate 23 guide and restrict the position of the dam samples, improving positioning accuracy. The opening and closing of the protective baffle 27 facilitates the feeding of the dam samples and protects against debris splashes.

[0031] Example 3, as Figure 6 and Figure 7As shown, a further improvement has been made based on Embodiment 1. The interior of the testing platform 1 is provided with a guide slide cavity 30 that communicates with the positioning groove 4. A load-bearing slide 31 is slidably mounted in the guide slide cavity 30. A fourth electric cylinder 32 connected to the load-bearing slide 31 is installed on one side of the testing platform 1. The end of the load-bearing slide 31 away from the fourth electric cylinder 32 is provided with an inclined slag guiding surface 33. The bottom end of the testing platform 1 is provided with a slag discharge port 34 that communicates with the guide slide cavity 30. A slag discharge funnel is provided at the slag discharge port 34. During strength testing, the load-bearing slide 31 is located in the positioning groove. Four locations can provide limiting support for the dam sample to ensure the strength testing effect. After the test, the output shaft of the fourth electric cylinder 32 drives the load-bearing slide 31 to move along the guide slide cavity 30 until the load-bearing slide 31 separates from the positioning groove 4. At the same time, the slag discharge port 34 leaks out, and under the action of the inclined slag guide surface 33, the debris inside the positioning groove 4 is discharged from the slag discharge funnel through the slag discharge port 34. This realizes the automatic cleaning of waste after testing, maintains the cleanliness of the dam strength testing device, improves the continuous operation capability, and also reduces the labor intensity of the operators.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A dam strength testing device for water conservancy engineering testing, comprising a testing platform (1), wherein the top of the testing platform (1) is provided with a U-shaped support, a vertically downward first electric cylinder (2) is mounted on the support, a pressure block (3) is provided at the bottom of the first electric cylinder (2), and a plurality of pressure sensors are provided on the bottom surface of the pressure block (3), characterized in that: The top of the testing platform (1) is provided with a positioning groove (4), and the top of the positioning groove (4) is provided with a protective enclosure (5) surrounding the side of the positioning groove (4). The output shaft of the first electric cylinder (2) is provided with a pressure rod (6) connected to the pressure block (3). The pressure rod (6) is provided with two limiting plates (7). The pressure rod (6) is fitted with a splash guard (8) and a reset spring (9) located between the two limiting plates (7). The reset spring (9) is located above the splash guard (8). The height of the protective enclosure (5) is not less than 50mm, and the diameter of the splash guard (8) is greater than the opening diameter of the positioning groove (4).

2. The dam strength testing device for water conservancy engineering testing according to claim 1, characterized in that: The bottom end of the pressure rod (6) is connected to the pressure block (3) via a fixing member.

3. The dam strength testing device for water conservancy engineering testing according to claim 2, characterized in that: The fastener includes a rectangular connecting block (10) at the bottom of the pressure rod (6), and a connecting groove (11) matching the connecting block (10) at the top of the pressure block (3). Both the connecting block (10) and the pressure block (3) have through holes (12), and a T-shaped first limiting plate (13) passes through the through holes (12).

4. The dam strength testing device for water conservancy engineering testing according to claim 3, characterized in that: The first limiting plate (13) has a locking hole (14) at the part that extends out of the through hole (12). A second limiting plate (15) in the shape of a T is inserted into the locking hole (14). The first limiting plate (13) has a locking screw (16) that locks with the second limiting plate (15).

5. The dam strength testing device for water conservancy engineering testing according to claim 1, characterized in that: Two mounting plates (17) are provided on one side of the testing station (1), and a conveyor belt (18) is provided between the two mounting plates (17). A first notch (19) is provided on the mounting plate (17) closest to the testing station (1).

6. The dam strength testing device for water conservancy engineering testing according to claim 5, characterized in that: Another mounting plate (17) is equipped with a second electric cylinder (20), the output shaft of the second electric cylinder (20) is provided with a push plate (21), the feed end of the push plate (21) is provided with an inclined guide plate (22), and the push plate (21) is provided with a vertical baffle plate (23).

7. The dam strength testing device for water conservancy engineering testing according to claim 6, characterized in that: The protective enclosure (5) has a second notch (24) at one end near the first notch (19). The top of the testing platform (1) is provided with a fixed sleeve (25) and a positioning seat (28). A third electric cylinder (26) is installed on one side of the fixed sleeve (25). The output shaft of the third electric cylinder (26) is provided with a protective baffle (27) that extends into the fixed sleeve (25). The positioning seat (28) is provided with a positioning hole (29) that matches the protective baffle (27). The entrance of the positioning hole (29) is cone-shaped.

8. The dam strength testing device for water conservancy engineering testing according to claim 1, characterized in that: The inside of the testing platform (1) is provided with a guide slide cavity (30) that communicates with the positioning groove (4). A load-bearing slide (31) is slidably provided in the guide slide cavity (30). A fourth electric cylinder (32) connected to the load-bearing slide (31) is installed on one side of the testing platform (1). The end of the load-bearing slide (31) away from the fourth electric cylinder (32) is provided with an inclined slag guide surface (33). The bottom end of the testing platform (1) is provided with a slag discharge port (34) that communicates with the guide slide cavity (30). A slag discharge funnel is provided at the slag discharge port (34).

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