A permeameter for construction engineering quality detection

Abstract

The utility model provides a kind of permeameter for construction engineering quality detection, it is related to engineering quality permeameter technical field, including rack, the detection box bottom fixed mounting on rack and detection box four around are composed of four side panels annular array, the bottom edge on side panel is hinged on rack by spring hinge, fixed mounting has pull cord through the upper surface of rack on the position close to bottom edge of side panel outer side, utilize electric push rod elongation to push telescopic rod contraction, after telescopic rod contraction to utmost, it will directly push the descent of traction plate, traction plate descent generates the downward tension of four around pull cord, when the downward tension is greater than the upward tension of pull cord to side panel, pull cord pulls side panel to overcome the torsion of spring hinge and sway open, by the unified control of electric push rod, the opening and closing of four side panels can be realized simultaneously, greatly reduce operating time, improve detection efficiency, especially applicable to the demand of rapid batch detection in engineering site.

Description

Technical Field

[0001] This utility model relates to the field of penetrant testing technology, and in particular to a penetrant testing instrument for building engineering quality. Background Technology

[0002] A permeameter is a specialized device used to test the impermeability or permeability coefficient of building materials (such as concrete, mortar, and soil). It is a core tool in engineering quality control for assessing material durability and preventing leakage risks. For example, a permeameter for building engineering quality testing (publication number CN223091773U) places a concrete sample inside a testing chamber. Activating a hydraulic rod causes a moving block to slide outside a sliding rod, moving a pressure block. Opening a valve allows water to enter the testing chamber through an inlet pipe, thus enabling the permeameter to test the concrete sample through the pressure block. The device introduces moisture into the concrete sample for penetration testing. When the concrete sample is placed in the testing chamber and testing is required, the testing chamber is placed on the base. The connecting part is moved by the handle, causing the locking block to move and insert into the slot. By pressing the pressing rod, the pushing block pushes the locking block, which in turn squeezes the spring, causing the locking block to move within the connecting part and into the slot. Releasing the pressing rod allows the locking block to fully enter the slot. This allows for quick and convenient disassembly and installation of the testing chamber and the base 1, making it easy to place and remove the concrete sample and improving the practicality of the device.

[0003] However, existing technology requires the simultaneous operation of four connectors when dismantling the testing box. Each connector requires pressing the pressing rod to drive the push block out of the slot. The four connectors need to be operated one by one, which is repetitive and time-consuming. Moreover, when testing batches of concrete samples, the repeated operation of the four connectors during the cycle of unpacking, changing samples, and packing will significantly increase the time cost of a single test, which cannot meet the needs of rapid batch testing on the engineering site. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a permeameter for testing the quality of building engineering.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a penetrant analyzer for testing the quality of building engineering, comprising a frame, a test box fixedly mounted on the frame, and the test box being composed of a circular array of four side plates. The bottom edge of the side plates is hinged to the frame by spring hinges. A pull rope is fixedly installed on the outer side of the side plate near the bottom edge, penetrating the upper surface of the frame. The four pull ropes are arranged in a circular array around the center of the bottom of the test box, and one end of each pull rope located below the frame is connected to a traction plate. A telescopic rod is connected to the center of the upper surface of the traction plate via a flange. The telescopic end of the telescopic rod is vertically upward and connected to an electric push rod embedded and fixedly mounted at the center of the bottom surface of the frame via a flange. The electric push rod is coaxially distributed with the telescopic rod, and several abutment rods are distributed around the electric push rod and fixedly mounted on the bottom surface of the frame for contacting the upper surface of the traction plate.

[0006] Preferably, a support frame is fixedly installed on the upper surface of the platform, and a hydraulic rod is fixedly installed on the inner top surface of the support frame. The telescopic end of the hydraulic rod faces downward and is fixedly installed with a pressure plate that is inserted into the inner wall of the test box.

[0007] Preferably, a plurality of rollers are rotatably connected to the inner sides of two side plates located outside the support frame. The rollers are horizontally arranged and distributed perpendicular to the inner sides of the support frame. A cover for surrounding the plurality of rollers on the same side plate is inserted into the inner side of the side plate.

[0008] Preferably, the upper surface of the test stand is provided with sink grooves around the bottom of the test box, and the four sink grooves correspond to the four side plates respectively, with the side edges inserted into the inner wall of the corresponding sink groove.

[0009] Preferably, sockets are fixedly installed on both sides of the top edge of the outer side of the side plate, and the frame is inserted with a plug at the connecting edge of the two adjacent side plates. A spring rod is provided between the side of the plug and the upper surface of the frame, and the top of the plug is inserted into the socket on the top edge of the two adjacent side plates.

[0010] Preferably, the four insertion posts are fixedly installed at the bottom of the platform with a connecting frame sleeved on a plurality of abutting rods. A first rack is fixedly installed on the inner side of the connecting frame. Preferably, the first rack and the second rack are arranged in parallel and their tooth surfaces face each other. A spur gear is rotatably connected to the bottom surface of the platform and meshes with the tooth surfaces of the first rack and the second rack.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, an electric push rod extends to push a telescopic rod to retract. When the telescopic rod retracts to its maximum extent, it directly pushes the traction plate to descend. The descent of the traction plate generates a downward pulling force on the surrounding pull ropes. When the downward pulling force is greater than the upward pulling force of the side plates on the pull ropes, the pull ropes pull the side plates to overcome the torque of the spring hinges and swing down to open. Through the unified control of the electric push rod, the opening and closing of the four side plates can be realized simultaneously, which greatly reduces the operation time and improves the testing efficiency. It is especially suitable for the needs of rapid batch testing in engineering sites.

[0012] 2. In this invention, when the electric push rod retracts or extends the telescopic rod, it drives the second rack to move, which in turn controls the rise or fall of the insertion post through the spur gear and the first rack. When the vertical plate is closed, the insertion post automatically engages with the socket, enhancing the connection strength between the vertical plates and ensuring the sealing and stability of the testing box during the testing process. Simultaneously, when the vertical plate is open, the insertion post automatically disengages from the socket, eliminating the need for manual operation and improving the convenience and efficiency of operation. Attached Figure Description

[0013] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a permeameter for testing the quality of building engineering. Figure 2 This utility model proposes a permeameter for testing the quality of building engineering projects. Figure 1 A schematic diagram of the structure viewed from below; Figure 3 This utility model proposes a permeameter for testing the quality of building engineering projects. Figure 1 A schematic diagram of the top-section structure; Figure 4 for Figure 3 A schematic diagram of the structure viewed from below; Figure 5 for Figure 4 A schematic diagram of the explosion structure.

[0014] Legend: 1. Platform; 2. Hydraulic rod; 3. Pressure plate; 4. Side plate; 5. Pull rope; 6. Spring rod; 7. Insert post; 8. Socket; 9. Connecting frame; 10. Traction plate; 11. Roller; 12. Cover; 13. Electric push rod; 14. Telescopic rod; 15. Abutment rod; 16. First rack; 17. Spur gear; 18. Second rack; 19. Settling tank; 20. Support frame. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] like Figures 1-5 As shown, a penetrant analyzer for testing the quality of building engineering includes a frame 1. A test chamber is fixedly mounted on the frame 1, and the test chamber is surrounded by a circular array of four side plates 4. A support frame 20 is fixedly mounted on the upper surface of the frame 1. A hydraulic rod 2 is fixedly mounted on the top surface of the support frame 20. The telescopic end of the hydraulic rod 2 faces downward and is fixedly mounted with a pressure plate 3 that is inserted into the inner wall of the test chamber. The four side plates 4 form a complete test chamber in a vertical state. Sealing is ensured by adding sealing gaskets to the joint edges of the side plates 4. Water can be injected into the test chamber to prevent leakage. At this time, the building sample in the test chamber is immersed in water. The hydraulic rod 2 extends and pushes the pressure plate 3 down into the test chamber. Under the pressure of the pressure plate 3, the water in the test chamber penetrates into the surface of the claw sample, thus realizing the penetrant test of the building. The bottom edge of the side plate 4 is hinged to the frame 1 by a spring hinge. The torque of the spring hinge ensures that the side plate 4 is vertically positioned under normal conditions. Several rollers 11 are rotatably connected to the inner surfaces of the two side plates 4 located outside the support frame 20. The rollers 11 are horizontally arranged and distributed perpendicular to the inner surface of the support frame 20. A cover 12 is inserted into the inner surface of the side plate 4 to surround the rollers 11 on the same side plate 4. The cover 12 covers the rollers 11. The cover 12 is inserted into the side of the pressure plate 3 to prevent gaps from forming on the side of the pressure plate 3. When the vertical plate is slid down to a horizontal position, the cover 12 is slid out, and the concrete sample is lifted by the rollers 11 on the side plate 4. The rollers 11 are used to roll and assist the concrete sample to slide onto the bottom plate of the testing box, or to facilitate personnel to push the concrete sample out. A pull rope 5 is fixedly installed on the outer side of the side plate 4 near the bottom edge, penetrating the upper surface of the platform 1. The four pull ropes 5 are arranged in a circular array around the center of the bottom of the testing box, with one end of each pull rope 5 located below the platform 1. A traction plate 10 is connected to the traction plate 10. A telescopic rod 14 is connected to the center of the upper surface of the traction plate 10 via a flange. The telescopic end of the telescopic rod 14 extends vertically upward and is connected to an electric push rod 13 embedded and fixedly installed at the center of the bottom surface of the platform 1 via a flange. The electric push rod 13 and the telescopic rod 14 are coaxially distributed, and several abutment rods 15 are fixedly installed on the bottom surface of the platform 1 around the electric push rod 13 to abut against the upper surface of the traction plate 10. Under normal circumstances, the spring hinge forces the side plate 4 into a vertical position, at which time the side plate 4 exerts an upward force on the pull rope 5. The pulling force of the four pull ropes 5 acts together around the traction plate 10, which can make the upper surface of the traction plate 10 press against the bottom end of the abutment rod 15. When the side plate 4 needs to be opened, the electric push rod 13 is extended to push the telescopic rod 14 to retract. After the telescopic rod 14 is retracted to the extreme, it will directly push the traction plate 10 to descend. The descent of the traction plate 10 generates a downward pulling force on the pull ropes 5 around it. The downward pulling force is greater than the upward pulling force of the side plate 4 on the pull ropes 5, so that the pull ropes 5 can pull the side plate 4 to overcome the torsion of the spring hinge and swing down to open.

[0018] The upper surface of the stand 1 is provided with sink grooves 19 around the bottom of the test box. The four sink grooves 19 correspond to the four side plates 4 respectively, and the side edges are inserted into the inner wall of the corresponding sink groove 19. This ensures that the side plates 4, when lowered to the horizontal state, are lower than the bottom plate of the test box, thus facilitating personnel to push the building samples in and out of the rollers 11 on the side plates 4.

[0019] Both sides of the top edge of the outer side panel 4 are fixedly installed with sockets 8. At the joint edges of two adjacent side panels 4, the frame 1 has insert posts 7. A spring rod 6 is provided between the side of the insert post 7 and the upper surface of the frame 1, and the top of the insert post 7 is inserted into the sockets 8 at the top edges of the two adjacent side panels 4. Under normal circumstances, the spring rod 6 elastically extends, pushing the insert post 7 upwards and disengaging from the sockets 8 on the side panel 4, without affecting the up-and-down swing of the side panel 4. When the side panel 4 is in a vertical position, applying a downward pulling force to the insert post 7 causes it to overcome the pushing force of the spring rod 6 and descend, thus allowing the top of the insert post 7 to be inserted into the adjacent sockets 8 of the two adjacent side panels 4. This fixes the position of the top of the joint edges of the two adjacent side panels 4, ensuring the stability of the testing box in use. A connecting frame 9, sleeved on several abutment rods 15, is fixedly installed at the bottom of the four insert posts 7 below the frame 1. A first tooth is fixedly installed on the inner side of the connecting frame 9. The first rack 16 and the second rack 18 are fixedly installed on the upward telescopic end of the telescopic rod 14. The first rack 16 and the second rack 18 are arranged in parallel and their tooth surfaces face each other. The bottom surface of the frame 1 is rotatably connected to a spur gear 17 that meshes with the tooth surfaces of the first rack 16 and the second rack 18. When the electric push rod 13 pushes the telescopic rod 14 to retract, it will drive the second rack 18 connected to it to descend. The descent of the second rack 18, under the meshing connection of the spur gear 17, will cause the first rack 16 to rise. Under the elastic extension of the spring rod 6, the insertion post 7 will rise and disengage from the socket 8, which will facilitate the subsequent descent of the traction plate 10 to pull the vertical plate open. In addition, in this solution, the number of tooth grooves of the second rack 18 is reasonably adjusted. When the elastic extension of the spring rod 6 is at its maximum, the tooth groove of the second rack 18 reaches the end point. At this time, even if the telescopic rod 14 continues to drive the second rack 18 to descend, it will not drive the spur gear 17 to rotate. Conversely, when the vertical plate needs to be tilted and closed, the telescopic end of the electric push rod 13 only needs to retract, and the retraction speed of the electric push rod 13 is lower than the speed at which the vertical plate swings under the torque of the spring hinge. At this time, during the upward swing of the side plate 4, the traction plate 10 is pulled upward. Because the retraction speed of the electric push rod 13 is lower than the upward speed of the traction plate 10, the traction plate 10 will exert pressure on the telescopic rod 14, so that the telescopic rod 14 always remains in a retracted state. When the traction plate 10 rises to contact the abutment rod 15, the vertical plate is completely vertical, and the traction plate 10 cannot continue to rise because of the abutment rod 15. At this time, the retraction of the electric push rod 13 can realize the extension of the telescopic rod 14. The extension of the telescopic rod 14 enables the starting point of the tooth groove of the second rack 18 connected to it to mesh with the spur gear 17, so that the spur gear 17 can mesh and drive the first rack 16 to descend. This enables the connecting frame 9 to drive the insertion post 7 to descend against the thrust of the spring rod 6, so that the insertion post 7 can be inserted into the socket 8 at the top edge of the connecting edge of the two adjacent vertical side plates 4.

[0020] The method of using this utility model is as follows: Vertical plate opening operation: The electric push rod 13 extends to push the telescopic rod 14 to retract. After the telescopic rod 14 is retracted to its maximum, it will directly push the traction plate 10 to descend. The traction plate 10 descends and generates a downward pulling force on the pull ropes 5 around it. When the downward pulling force is greater than the upward pulling force of the side plate 4 on the pull ropes 5, the pull ropes 5 pull the side plate 4 to overcome the torque of the spring hinge and swing down to open, so that personnel can put the building concrete sample to be tested into the testing box.

[0021] Then, the telescopic end of the electric push rod 13 retracts, and the retraction speed is lower than the swing speed of the vertical plate under the torsion of the spring hinge. During the upward swing of the side plate 4, the traction plate 10 is pulled up, and the traction plate 10 exerts pressure on the telescopic rod 14 to keep it in a retracted state. When the traction plate 10 rises to contact the abutment rod 15, the vertical plate is in a completely vertical state. At this time, the electric push rod 13 continues to retract, the telescopic rod 14 extends, the starting point of the tooth groove of the second rack 18 meshes with the spur gear 17, and the meshing of the spur gear 17 drives the first rack 16 to descend. The connecting frame 9 drives the insertion post 7 to descend against the thrust of the spring rod 6. The insertion post 7 is inserted into the socket 8 at the top edge of the connecting edge of the two adjacent vertical side plates 4, completing the closing and reinforcement of the vertical plate.

[0022] The wiring diagrams of the hydraulic rod 2 and the electric push rod 13 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring layout of the hydraulic rod 2 and the electric push rod 13 will not be explained in detail.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A permeameter for testing the quality of building engineering projects, comprising a stand (1), characterized in that: The bottom of the test box on the stand (1) is fixedly installed on the stand (1), and the test box is surrounded by a circular array of four side plates (4). The bottom edge of the side plate (4) is hinged to the stand (1) by a spring hinge. A pull rope (5) is fixedly installed on the outer side of the side plate (4) near the bottom edge, penetrating the upper surface of the stand (1). The four pull ropes (5) are arranged in a circular array around the center of the bottom of the test box, and the ends of the four pull ropes (5) located below the stand (1) are connected together. A traction plate (10) is connected, and a telescopic rod (14) is connected to the center of the upper surface of the traction plate (10) via a flange. The telescopic end of the telescopic rod (14) is vertically upward and is connected to an electric push rod (13) embedded and fixedly installed at the center of the bottom surface of the platform (1) via a flange. The electric push rod (13) is coaxially distributed with the telescopic rod (14), and several abutment rods (15) are fixedly installed on the bottom surface of the platform (1) and used to abut against the upper surface of the traction plate (10) around the electric push rod (13).

2. The penetrant analyzer for testing the quality of building engineering projects according to claim 1, characterized in that: A support frame (20) is fixedly installed on the upper surface of the platform (1). A hydraulic rod (2) is fixedly installed on the inner top surface of the support frame (20). The extension end of the hydraulic rod (2) is downward and fixedly installed with a pressure plate (3) that is inserted into the inner wall of the test box.

3. The penetrant analyzer for testing the quality of building engineering projects according to claim 1, characterized in that: A number of rollers (11) are rotatably connected to the inner sides of two side plates (4) located outside the support frame (20). The rollers (11) are horizontally arranged and distributed perpendicular to the inner side of the support frame (20). A cover (12) for surrounding the rollers (11) on the same side plate (4) is inserted into the inner side of the side plate (4).

4. The penetrant analyzer for testing the quality of building engineering projects according to claim 1, characterized in that: The upper surface of the test stand (1) is provided with sink grooves (19) around the bottom of the test box. The four sink grooves (19) correspond to the four side plates (4) respectively, and the side edges are inserted into the inner wall of the corresponding sink groove (19).

5. The penetrant analyzer for testing the quality of building engineering projects according to claim 1, characterized in that: Both sides of the top edge of the outer side of the side plate (4) are fixedly installed with sockets (8). The frame (1) is connected to the connecting edge of the two adjacent side plates (4) with plugs (7). A spring rod (6) is provided between the side of the plug (7) and the upper surface of the frame (1), and the top of the plug (7) is connected to the sockets (8) on the top edge of the two adjacent side plates (4).

6. The penetrant analyzer for testing the quality of building engineering projects according to claim 5, characterized in that: The bottom ends of the four inserts (7) located below the platform (1) are fixedly installed with connecting frames (9) sleeved on several abutting rods (15). The inner side of the connecting frame (9) is fixedly installed with a first rack (16), and the upward telescopic end of the telescopic rod (14) is fixedly installed with a second rack (18).

7. The penetrant analyzer for testing the quality of building engineering according to claim 6, characterized in that: The first rack (16) and the second rack (18) are arranged in parallel and their tooth surfaces face each other. The bottom surface of the frame (1) is rotatably connected to a spur gear (17) that meshes with the tooth surfaces of the first rack (16) and the second rack (18).

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