Performance safety detector applied to concrete structural member
By designing a concrete detector that includes a casting assembly, a sealing mechanism, and a heat-conducting assembly, the problems of cumbersome testing operations and insufficient sealing in existing technologies are solved, achieving efficient and accurate water permeability detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-04-03
AI Technical Summary
Existing methods for testing the permeability of concrete are cumbersome to operate, easily damage the specimens, and result in insufficient sealing, affecting the accuracy and efficiency of the test.
A performance safety detector was designed, comprising a water flow channel, a support assembly, a sealing and testing mechanism, and a heat-conducting assembly. By pushing the assembly to simultaneously close the clamping assembly, a tight cylindrical inner cavity is formed. Combined with a multi-layer sealing structure and a heat-conducting assembly, the detector ensures accurate positioning and good sealing of the specimen, avoiding wear and leakage.
It achieves high efficiency, accuracy, and stability in batch testing, shortens the testing cycle, and ensures the accuracy and reliability of seepage test results.
Smart Images
Figure CN121783808A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of concrete quality testing technology, and more specifically, to a performance safety detector for concrete structural components. Background Technology
[0002] New material testing is a core component in ensuring the quality and safety of engineering construction, especially for fundamental materials like concrete, which are widely used in buildings, bridges, and water conservancy projects. Its safety performance directly determines the service life and load-bearing reliability of the engineering structure. Water permeability, as a key indicator of concrete safety performance, directly reflects the density of the concrete's internal pore structure. If water permeability exceeds the standard, moisture can easily seep into the interior, causing problems such as steel corrosion and freeze-thaw damage, significantly reducing structural durability and even inducing safety accidents. Therefore, accurate water permeability testing of concrete specimens is a necessary means to select qualified materials, optimize mix design, and ensure engineering safety.
[0003] Currently, the general procedure involves first uniformly applying melted paraffin wax to a cured cylindrical concrete specimen. Water permeability tests typically use six specimens as a group. The paraffin-coated concrete specimens are then placed into a preheated cylindrical mold, and a screw press is used to help press the specimens in completely. The mold is heated to a temperature where the paraffin wax is just melted but not dripping, ensuring full contact between the wax and the mold. After cooling, the wax seals between the mold and the concrete specimen. The six molds containing the concrete specimens are then individually positioned on the permeability tester. Finally, the valve is opened to inject water into the concrete specimens for testing. This testing method is not only cumbersome in its positioning and testing process, but also prone to displacement when placing the concrete specimens into the molds. The specimens are subjected to pressure and abrasion from the inner wall of the mold, damaging the structure of both the concrete specimen and the paraffin wax. This results in insufficient sealing between the concrete specimen and the mold. When the water pressure is increased for permeability testing, water overflows from the side walls of the concrete specimens to the top, affecting the test results and reducing testing efficiency and accuracy.
[0004] In view of this, we propose a performance safety detector for detecting efficient and stable concrete structural components. Summary of the Invention
[0005] Technical problem to be solved: The purpose of this application is to provide a performance safety detector for concrete structural components, which solves the technical problems mentioned in the background art.
[0006] Technical Solution: This application provides a performance safety detector for concrete structural components, including a body with an internal water flow channel. The body's sidewalls are connected to valves for controlling water output. Six sets of injection assemblies are fixed in a rectangular arrangement on the top surface of the body for placing and injecting water into the concrete specimen. Six sets of sealing mechanisms are also arranged in a rectangular arrangement on the top surface of the body; these sealing mechanisms are openable and closable. A pushing component is provided on the top surface of the body to push the six sealing mechanisms to close synchronously, so that the sealing mechanisms are closed and fitted onto the injection assemblies and the outer wall of the concrete specimen. Two sets of heat-conducting components are provided on the top surface of the body to heat the three sealing mechanisms on the same side. The sealing mechanism includes four sets of clamping components arranged in a cross shape. The four sets of clamping components are pushed and closed by a pushing component, so that the four sets of clamping components are closed to form a cylindrical inner cavity, which is used to fit and seal the injection component and the outer wall of the concrete specimen.
[0007] Furthermore, the pushing assembly includes two motors fixed to the top surface of the machine body. Each motor has a screw connected to its rotating end. The end of the screw away from the motor is rotatably connected to the top surface of the machine body. The outer walls of the two screws are provided with four threaded segments with opposite thread directions at intervals. Four sets of pushing components are sleeved across the outer walls of the two screws. The four sets of pushing components are arranged in parallel. The pushing components are threaded onto the threaded segments of the two screws. The pushing components are connected through the six sets of clamping assemblies on the same side. The screws are rotated by the motors so that the four threaded segments of the screws push the four sets of pushing components respectively, thereby pushing the clamping assemblies to close.
[0008] Furthermore, the pushing component includes two push blocks that are threaded onto two screws respectively, and a push rod is connected between the two push blocks. The push rod passes through and is connected to the interior of six sets of clamping assemblies on the same side. The clamping assembly is slidably sleeved on the outer wall of the push rod. The clamping assembly is an oblique translation structure. The clamping assembly is pushed obliquely by the push rod.
[0009] Furthermore, the clamping assembly includes a slide rail fixed to the top surface of the machine body, a slide sleeve slidably connected to the outer wall of the slide rail, a quarter-circle arc-shaped clamp fixed to one side of the slide sleeve, a slider fixed to the top surface of the slide sleeve, the slider slidably sleeved to the outer wall of the push rod, and a reinforcing rib fixed between the top surface of the slider and the arc-shaped outer wall of the clamp.
[0010] Furthermore, the clamping assembly also includes a card holder fixed to the bottom surface of the jacket. The card holder is a quarter-circle arc structure. The center of the arc of the card holder and the center of the arc of the jacket are located on the same vertical center line. The inner diameter of the arc of the card holder is smaller than the inner diameter of the arc of the jacket. The bottom of the injection support assembly is a stepped cylindrical structure. The card holder is inserted into the stepped structure of the injection support assembly by translation. A heat-conducting component is connected to the outer wall of the arc of the card holder.
[0011] Furthermore, the card holder has a hollow cavity structure, and a heat-conducting component that communicates with the internal cavity is connected to the arc-shaped outer wall of the card holder. Multiple air outlets are opened through the top surface of the card holder, and the air outlets are located at the bottom of the arc-shaped groove of the jacket.
[0012] Furthermore, the heat-conducting component includes two hot air blowers fixed to the top surface of the machine body. Each hot air blower has an air outlet on both sides. A first air duct is connected between the air outlets on the same side of the two hot air blowers. Six second air ducts are connected to one side of the first air duct. One end of each second air duct is connected to the inside of the card holder.
[0013] Furthermore, the injection assembly includes a support platform fixed to the top surface of the machine body, with a water injection hole through the inside of the support platform, the water injection hole being connected to the water flow channel inside the machine body, a sealing component fitted to the top outer wall of the support platform, and a gasket fitted to the bottom of the support platform, the jacket being aligned with the sealing component and the outer wall of the gasket by translation, and the top surface of the card holder being aligned with the bottom surface of the gasket.
[0014] Furthermore, the sealing component includes an elastic sealing sleeve fitted onto the outer wall of the top of the support platform. The elastic sealing sleeve is attached to the top surface of the gasket ring, which is made of a heat-conducting material. A sponge ring is provided inside the elastic sealing sleeve. The concave surface of the card seat is provided with multiple air guide grooves that communicate with the air outlet. The air guide grooves are located at the bottom of the gasket ring.
[0015] Furthermore, the sponge ring has a convex cross-section, and the elastic sealing sleeve has a convex cavity with a through top surface, and the sponge ring is fitted inside the cavity of the elastic sealing sleeve.
[0016] Beneficial effects: One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The top surface of the machine body has six rectangular sets of injection support components and sealing mechanisms, which can simultaneously place six concrete specimens for batch testing. The push component drives the six sets of sealing mechanisms to close synchronously. The four clamping components of each sealing mechanism close to form a cylindrical inner cavity, which closely fits the injection support components and the outer wall of the concrete specimen, improving testing efficiency and shortening the testing cycle.
[0017] 2. The push component pushes four sets of clamping components to clamp and seal the concrete specimen, automatically adjusting the offset position of the concrete specimen. The positioning operation is simple and ensures the accuracy of the concrete specimen's positioning on the support component.
[0018] 3. The use of four sets of clamping components to close and seal the concrete specimen provides ample space for placement, improving ease of operation and preventing scratches and abrasions. This ensures the stability and integrity of the concrete specimen and its surface paraffin layer, thereby guaranteeing the accuracy of subsequent water seepage test results.
[0019] 4. Two sets of heat-conducting components can preheat the three sets of sealing and testing mechanisms on the same side. In conjunction with the sealing operation, the heated clamping components come into contact with the paraffin wax when they are closed. Some of the paraffin wax melts but does not flow, allowing the paraffin wax to fully adhere to the clamping components, improving the sealing effect on the side wall of the concrete specimen, and further ensuring the stability and accuracy of the test.
[0020] 5. The card holder is a quarter-circle arc shape, coaxial with the jacket, and its inner diameter is smaller than that of the jacket. It can be inserted into the cylindrical stepped structure of the injection assembly to achieve precise bottom positioning and ensure the stability of the structure after clamping. The top surface of the card holder is in contact with the gasket, and the jacket is in contact with the sealing component and the gasket to form a double seal, preventing water from seeping out from the bottom during testing and ensuring testing accuracy.
[0021] 6. The card holder has a hollow cavity structure that is connected to the heat-conducting components. Hot air can fill the cavity. Multiple air outlets are opened on the top surface of the card holder and located at the bottom of the arc groove of the jacket. This allows the hot air to be evenly directed to the sealing area. The hot air acts directly on the sealing part, making the temperature distribution uniform and ensuring the consistency of paraffin melting and solidification.
[0022] 7. The sealing components at the top of the platform fit snugly against the jacket, and the bottom gasket fits snugly against the top surface of the card holder, forming a multi-layered sealing barrier. This multi-layered sealing minimizes the risk of water leakage and significantly improves detection accuracy.
[0023] 8. The air guide groove and air outlet of the card holder are connected, and the hot air is evenly applied to the bottom of the gasket to ensure a consistent temperature distribution. The gasket is made of a heat-conducting material (such as a copper ring), which can quickly transfer the heat of the hot air to the elastic sealing sleeve. The elastic sealing sleeve is made of heat-conducting rubber, which transfers the heat to the internal sponge ring, keeping the paraffin absorbed by the sponge ring in a molten state. The sponge ring can use the absorbed molten paraffin to fill the gaps during subsequent compression, thereby enhancing the sealing effect. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of a performance safety detector applied to concrete structural components according to the present invention.
[0025] Figure 2 This is a schematic diagram of the connection structure between the pushing component and the clamping component of the present invention.
[0026] Figure 3 This is a schematic diagram of the connection structure between the heat-conducting component and the clamping component of the present invention.
[0027] Figure 4 This is a schematic diagram of the clamping assembly structure of the present invention.
[0028] Figure 5 This is a schematic diagram of the top surface structure of the injection assembly of the present invention.
[0029] Figure 6This is a schematic diagram of the bottom structure of the injection assembly of the present invention.
[0030] Figure 7 This is a cross-sectional view of the internal structure of the injection assembly of the present invention.
[0031] Figure 8 This is a schematic diagram of the clamping assembly of the present invention clamping the support platform and the concrete specimen.
[0032] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point A in the middle.
[0033] Figure 10 This is a schematic diagram of the overall structure of the present invention in the closed testing state of a concrete specimen.
[0034] The following are the labels in the diagram: 100, machine body; 110, valve; 200, pushing assembly; 210, motor; 220, screw; 230, push block; 240, push rod; 300, clamping assembly; 310, slide rail; 320, sliding sleeve; 330, slider; 340, reinforcing rib; 350, jacket; 360, card seat; 361, air outlet; 362, air guide duct; 400, heat conduction assembly; 410, hot air blower; 420, first air duct; 430, second air duct; 500, injection assembly; 510, support platform; 511, water injection hole; 520, sealing component; 521, elastic sealing sleeve; 522, sponge ring; 530, gasket ring; 600, concrete specimen. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a link; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0038] Reference Figures 1-10 This application provides a performance safety detector for concrete structural components, including a body 100 with an internal water flow channel. A valve 110 for controlling water output is connected to the side wall of the body 100. Six sets of injection assemblies 500 are fixedly arranged in a rectangular pattern on the top surface of the body 100. The injection assemblies 500 are used for placing and injecting water into the concrete specimen. Six sets of sealing mechanisms are arranged in a rectangular pattern on the top surface of the body 100. The sealing mechanisms are openable and closable. A pushing component 200 is provided on the top surface of the body 100 to push the six sets of sealing mechanisms to close synchronously, so that the sealing mechanisms are closed and fitted onto the injection assemblies 500 and the outer wall of the concrete specimen 600. Two sets of heat-conducting components 400 are provided on the top surface of the body 100 to heat the three sets of sealing mechanisms on the same side. The sealing mechanism includes four sets of clamping components 300 arranged in a cross shape. The four sets of clamping components 300 are pushed and closed by the pushing component 200 so that the four sets of clamping components 300 form a cylindrical inner cavity to fit and seal against the outer wall of the injection component 500 and the concrete specimen 600. The top surface of the machine body 100 has six sets of injection support components 500 and sealing and testing mechanisms arranged in a rectangle, which can simultaneously place six concrete specimens 600 for batch testing. The push component 200 pushes the six sets of sealing and testing mechanisms to close synchronously. The four sets of clamping and sealing components 300 of each sealing and testing mechanism close to form a cylindrical inner cavity, which closely fits the injection support components 500 and the outer wall of the concrete specimens 600, improving testing efficiency and shortening the testing cycle. By pushing component 200 to push four sets of clamping components 300 to clamp and seal concrete specimen 600, the offset position of concrete specimen 600 is automatically adjusted and the positioning operation is simple, and the positioning accuracy of concrete specimen 600 on support component 500 is guaranteed. The concrete specimen 600 is closed and clamped by four sets of clamping components 300, which provides a large space when placing the concrete specimen 600, improves the ease of placement, and avoids scratching and abrasion of the concrete specimen 600, ensuring the stability and integrity of the concrete specimen 600 and the surface paraffin layer structure, thereby ensuring the accuracy of subsequent water seepage test results. Two sets of heat-conducting components 400 can preheat the three sets of sealing and testing mechanisms on the same side. In conjunction with the sealing operation, when the heated clamping and sealing components 300 are closed, they come into contact with the paraffin wax. Some of the paraffin wax melts but does not flow, allowing the paraffin wax to fully adhere to the clamping and sealing components 300. This improves the sealing effect on the side wall of the concrete specimen 600 and further ensures the stability and accuracy of the test.
[0039] In this embodiment, the pushing component 200 includes two motors 210 fixed to the top surface of the body 100. Each of the rotating ends of the two motors 210 is connected to a screw 220. The end of the screw 220 away from the motor 210 is rotatably connected to the top surface of the body 100. The outer walls of the two screws 220 are provided with four threaded segments with opposite thread directions at intervals. Four sets of pushing components are sleeved across the outer walls of the two screws 220. The four sets of pushing components are arranged in parallel. The pushing components are threaded onto the threaded segments of the two screws 220. The pushing components are connected through the six sets of clamping components 300 on the same side. The screws 220 are rotated by the motors 210 so that the four threaded segments of the screws 220 push the four sets of pushing components respectively, thereby pushing the clamping components 300 to close. Two motors 210 drive the screw 220 to rotate. The four reverse threaded sections on the screw 220 can synchronously push four sets of pushing components. The pushing components pass through six sets of clamping and sealing assemblies 300, which can realize the synchronous opening and closing of multiple sets of sealing and testing mechanisms. A single drive system controls multiple sets of sealing and testing mechanisms, which simplifies the structure and reduces the failure rate. The two screws 220 use multiple reverse threaded sections to cooperate, so the driving force is balanced and stable, ensuring that each set of clamping and sealing assemblies 300 can be tightly closed, enhancing the tightness of the seal and reducing the risk of external water seepage in the concrete specimen 600.
[0040] In this embodiment, the pushing component includes two push blocks 230 respectively threaded onto two screws 220, and a push rod 240 connected between the two push blocks 230. The push rod 240 passes through and is connected to the interior of six sets of clamping assemblies 300 on the same side. The clamping assembly 300 is slidably sleeved on the outer wall of the push rod 240. The clamping assembly 300 has an oblique translation structure, and the clamping assembly 300 is pushed obliquely by the push rod 240. The two push blocks 230 of the pusher component are threaded onto the two screws 220 respectively, and are connected by push rods 240 to form a stable frame. The push rods 240 pass through the six sets of clamping components 300. There is no deviation when pushing. The clamping components 300 adopt an oblique translation structure. The push rods 240 and the clamping components 300 are slidably sleeved. Under the push of the push rods 240, oblique movement can be achieved to adapt to the placement deviation of the concrete specimen 600 and ensure the fit between the clamping components 300 and the concrete specimen 600.
[0041] In this embodiment, the clamping assembly 300 includes a slide rail 310 fixed to the top surface of the body 100, a slide sleeve 320 slidably connected to the outer wall of the slide rail 310, a quarter-circle arc-shaped clamp 350 fixed to one side of the slide sleeve 320, a slider 330 fixed to the top surface of the slide sleeve 320, the slider 330 slidably sleeved on the outer wall of the push rod 240, and a reinforcing rib 340 fixed between the top surface of the slider 330 and the arc-shaped outer wall of the clamp 350. The jacket 350 adopts a quarter-circle arc structure, which forms a complete cylinder after closing. It fits tightly with the concrete specimen 600 and the injection assembly 500. The reinforcing rib 340 connects the slider 330 and the arc outer wall of the jacket 350 to enhance the structural strength, prevent the jacket 350 from deforming, and ensure the stability of the clamping seal. The slider 330 is slidably sleeved on the push rod 240 to ensure the accuracy of the translation direction.
[0042] In this embodiment, the clamping assembly 300 further includes a card holder 360 fixed to the bottom surface of the sleeve 350. The card holder 360 has a quarter-circular arc structure. The arc center of the card holder 360 and the sleeve 350 are located on the same vertical centerline. The inner diameter of the arc of the card holder 360 is smaller than the inner diameter of the arc of the sleeve 350. The bottom of the injection assembly 500 has a stepped cylindrical structure. The card holder 360 is inserted into the stepped structure of the injection assembly 500 by translation. A heat-conducting assembly 400 is connected to the outer arc wall of the card holder 360. The card holder 360 is a quarter-circular arc shape, coaxial with the jacket 350, and its inner diameter is smaller than that of the jacket 350. It can be inserted into the cylindrical stepped structure of the injection assembly 500 to achieve precise bottom positioning and ensure the stability of the structure after clamping. The top surface of the card holder 360 is fitted with the gasket 530, and the jacket 350 is fitted with the sealing component 520 and the gasket 530 to form a double seal, preventing water from seeping out from the bottom during testing and ensuring testing accuracy. The arc-shaped outer wall of the card holder 360 is connected to the heat conduction component 400, which can quickly transfer heat to the sealing part and improve the sealing effect.
[0043] In this embodiment, the card holder 360 has a hollow internal structure. A heat-conducting component 400 communicating with the internal cavity is connected to the arc-shaped outer wall of the card holder 360. Multiple air outlets 361 are opened through the top surface of the card holder 360 and are located at the bottom of the arc-shaped groove of the jacket 350. The hollow internal structure of the card holder 360, which is in communication with the heat-conducting component 400, allows hot air to fill the cavity. The multiple air outlets 361, located on the top surface of the card holder 360 and at the bottom of the arc-shaped groove of the jacket 350, can evenly guide the hot air to the sealing area. The hot air directly acts on the sealing part, making the temperature distribution uniform and ensuring the consistency of paraffin melting and solidification.
[0044] In this embodiment, the heat-conducting component 400 includes two hot air blowers 410 fixed to the top surface of the body 100. Each hot air blower 410 has an air outlet on both sides. A first air duct 420 is connected between the air outlets on the same side of the two hot air blowers 410. Six second air ducts 430 are connected to one side of the first air duct 420. One end of each second air duct 430 is connected to the interior of the mounting bracket 360. The two hot air blowers 410 are connected to the six second air ducts 430 through the two first air ducts 420. Each second air duct 430 corresponds to a set of mounting brackets 360, enabling simultaneous heating of the six sets of mounting brackets 360. The interconnected air ducts ensure uniform heat distribution, guaranteeing consistent temperature across multiple sealing areas and thus ensuring a uniform sealing effect. The pipeline layout is neat and does not affect the placement of the specimen or the testing operation.
[0045] In this embodiment, the injection assembly 500 includes a support platform 510 fixed to the top surface of the body 100. A water injection hole 511 is provided through the inside of the support platform 510. The water injection hole 511 is connected to the water flow channel inside the body 100. A sealing component 520 is sleeved on the top outer wall of the support platform 510. A gasket 530 is sleeved and fixed on the bottom of the support platform 510. The clip 350 is aligned with the sealing component 520 and the outer wall of the gasket 530 by translation, and the top surface of the card holder 360 is aligned with the bottom surface of the gasket 530. The sealing component 520 at the top of the platform 510 fits into the jacket 350, and the bottom gasket 530 fits into the top surface of the card holder 360, forming a multi-layer sealing barrier. The multi-layer sealing minimizes the risk of water leakage and greatly improves the detection accuracy. The gasket 530 is sleeved and fixed to the bottom of the platform 510, with precise positioning and heat transfer, improving heat conduction efficiency and enhancing the synergistic effect of sealing and heating. When the jacket 350 moves horizontally, it fits into the sealing component 520 and the gasket 530, further compacting the sealing structure and filling tiny gaps.
[0046] In this embodiment, the sealing component 520 includes an elastic sealing sleeve 521 sleeved on the top outer wall of the support platform 510. The elastic sealing sleeve 521 is attached to the top surface of the gasket 530. The gasket 530 is made of heat-conducting material. A sponge ring 522 is provided inside the elastic sealing sleeve 521. The arc concave surface of the card seat 360 is provided with a plurality of air guide grooves 362 that communicate with the air outlet 361. The air guide grooves 362 are provided at the bottom of the gasket 530. The air guide groove 362 of the card holder 360 is connected to the air outlet 361, so that the hot air is evenly applied to the bottom of the gasket 530 to ensure a consistent temperature distribution. The gasket 530 is made of a heat-conducting material (such as a copper ring), which can quickly transfer the heat of the hot air to the elastic sealing sleeve 521. The elastic sealing sleeve 521 is made of heat-conducting rubber, which transfers the heat to the internal sponge ring 522, keeping the paraffin absorbed by the sponge ring 522 in a molten state. The sponge ring 522 can use the absorbed molten paraffin to fill the gaps during subsequent compression, thereby enhancing the sealing effect.
[0047] In this embodiment, the sponge ring 522 has a convex cross-section, and the elastic sealing sleeve 521 has a convex cavity with a through top surface. The sponge ring 522 is fitted inside the cavity of the elastic sealing sleeve 521. The convex cross-section of the sponge ring 522 fits precisely with the convex cavity of the elastic sealing sleeve 521, preventing displacement during compression and ensuring the stability of the structure.
[0048] Specifically, according to Figures 1-10 As shown, six concrete specimens 600 were removed one day before the test after curing. The surfaces were dried, and the sides of the concrete specimens 600 were cleaned with sandpaper. The paraffin wax was melted and evenly applied to the outer wall of the six concrete specimens 600 to be tested for water permeability. After cooling, a cylindrical paraffin wax layer was formed on the outer wall of the concrete specimens 600. The six concrete specimens 600 were then placed on six support platforms 510. It is only necessary to place the concrete specimens 600 stably on the support platforms 510. There is no need to frequently adjust the position of the concrete specimens 600 for positioning, which improves the convenience of the placement operation. Then, two hot air blowers 410 are activated. The hot air blowers 410 simultaneously introduce hot air into each of the card holders 360 through the first air duct 420 and the second air duct 430. The hot air temperature is just enough to melt paraffin without it flowing. The hot air heats the jackets 350 through multiple air outlets 361. Then, two motors 210 are activated simultaneously. The motors 210 drive the screw 220 to rotate. The screw 220, using four threaded sections with opposite directions, pushes the push blocks 230 to move closer together in pairs. Simultaneously, the push rod 240 pushes six sliders 330. The sliders 330 slide on the push rod 240, and the sliding sleeves 320 move obliquely on the slide rail 310 at an angle of 45°, causing the four jackets 350 in the same group to move towards each other. As the injection assembly 500 gathers together, the jacket 350 pushes the concrete specimen 600 to move horizontally during the gathering process, bringing the vertical center of the concrete specimen 600 closer to the center of the support platform 510. At this time, the part of the paraffin wax on the concrete specimen 600 that is in contact with the jacket 350 melts and is squeezed to the bottom, and is absorbed by the sponge ring 522. The card seat 360 is inserted into the bottom of the gasket 530. The gasket 530 is made of copper ring, and the air outlet 361 is attached to the bottom of the gasket 530. At this time, the hot air is discharged through the air guide 362. When the hot air is discharged, it heats the gasket 530. The gasket 530 conducts heat to the elastic sealing sleeve 521. The elastic sealing sleeve 521 is made of heat-conducting rubber, so that the paraffin wax absorbed by the sponge ring 522 remains melted. Then, the four clamps 350 close to form a cylinder, sealing and clamping the concrete specimen 600 between the four clamps 350, and positioning the concrete specimen 600 at the center of the support platform 510. The clamps 350 squeeze the elastic sealing sleeve 521, squeezing the paraffin wax inside the sponge ring 522 between the bottom surface of the concrete specimen 600, the outer wall of the support platform 510, and the inner wall of the clamps 350. The hot air blower 410 is turned off, and because the surface temperature of the concrete specimen 600 is low, the paraffin wax solidifies rapidly, sealing the bottom surface of the concrete specimen 600 with the top surface of the support platform 510 and the inner wall of the clamps 350, forming a multi-layered sealing protection. This effectively prevents water from seeping out from the edge of the top surface of the support platform 510 and the side wall of the concrete specimen 600 during water penetration testing, thus ensuring that water is tested through the inside of the concrete specimen 600, improving the accuracy and stability of the test. Finally, rotate valve 110 to open the water flow channel inside the machine body 100, allowing water to be injected through the water injection hole 511 of the support platform 510. Then, by increasing the water pressure, the water resistance performance of the concrete specimen 600 is tested.
[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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. All electrical components mentioned herein are electrically connected to the main controller and 220V AC mains power, and the main controller is a common existing technology such as a computer that performs control functions. Content not described in detail in this specification is prior art known to those skilled in the art.
[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A performance safety detector applied to concrete structural components, characterized in that: The device includes a body (100) with an internal water flow channel. The side wall of the body (100) is connected to a valve (110) for controlling the water outlet. Six sets of injection assemblies (500) are fixed in a rectangular arrangement on the top surface of the body (100). The injection assemblies (500) are used for placing and injecting water into the concrete specimen. Six sets of sealing and testing mechanisms are arranged in a rectangular arrangement on the top surface of the body (100). The sealing and testing mechanisms are openable and closable. A pushing assembly (200) is provided on the top surface of the body (100). The pushing assembly (200) is used to push the six sets of sealing and testing mechanisms to close synchronously, so that the sealing and testing mechanisms are closed and fitted onto the injection assemblies (500) and the outer wall of the concrete specimen (600). Two sets of heat-conducting assemblies (400) are provided on the top surface of the body (100). The heat-conducting assemblies (400) are used to heat the three sets of sealing and testing mechanisms on the same side. The sealing mechanism includes four sets of clamping components (300) arranged in a cross shape. The four sets of clamping components (300) are pushed and closed by the pushing component (200) so that the four sets of clamping components (300) form a cylindrical inner cavity to fit and seal against the outer wall of the injection component (500) and the concrete specimen (600).
2. The performance safety detector for concrete structural members according to claim 1, characterized in that: The pushing component (200) includes two motors (210) fixed to the top surface of the body (100). The rotating ends of the two motors (210) are connected to screws (220). The end of the screw (220) away from the motor (210) is rotatably connected to the top surface of the body (100). The outer walls of the two screws (220) are provided with four threaded segments with opposite thread directions. Four sets of pushing components are sleeved across the outer walls of the two screws (220). The four sets of pushing components are arranged in parallel. The pushing components are threaded onto the threaded segments of the two screws (220). The pushing components are connected through the six sets of clamping components (300) on the same side. The screws (220) are rotated by the motors (210) so that the four threaded segments of the screws (220) push the four sets of pushing components respectively, thereby pushing the clamping components (300) to close.
3. A performance safety detector for concrete structural members according to claim 2, characterized in that: The pusher component includes two push blocks (230) respectively threaded onto two screws (220), and a push rod (240) is connected between the two push blocks (230). The push rod (240) is connected through the interior of six sets of clamping assemblies (300) on the same side. The clamping assembly (300) is slidably sleeved on the outer wall of the push rod (240). The clamping assembly (300) is an oblique translation structure. The clamping assembly (300) is pushed obliquely by the push rod (240).
4. A performance safety detector for concrete structural members according to claim 3, characterized in that: The clamping assembly (300) includes a slide rail (310) fixed to the top surface of the body (100), a slide sleeve (320) slidably connected to the outer wall of the slide rail (310), a quarter-circle arc-shaped clamp (350) fixed on one side of the slide sleeve (320), a slider (330) fixed on the top surface of the slide sleeve (320), the slider (330) slidably sleeved on the outer wall of the push rod (240), and a reinforcing rib (340) fixed between the top surface of the slider (330) and the arc-shaped outer wall of the clamp (350).
5. A performance safety detector for concrete structural members according to claim 4, characterized in that: The clamping assembly (300) also includes a card holder (360) fixed to the bottom surface of the sleeve (350). The card holder (360) is a quarter-circular arc structure. The arc center of the card holder (360) and the sleeve (350) are located on the same vertical center line. The inner diameter of the arc of the card holder (360) is smaller than the inner diameter of the arc of the sleeve (350). The bottom of the injection assembly (500) is a stepped cylindrical structure. The card holder (360) is inserted into the stepped structure of the injection assembly (500) by translation. The outer arc wall of the card holder (360) is connected to a heat-conducting component (400).
6. A performance safety detector for concrete structural members according to claim 5, characterized in that: The card holder (360) has a hollow structure inside. The outer arc wall of the card holder (360) is connected to a heat-conducting component (400) that communicates with the inner cavity. The top surface of the card holder (360) is provided with multiple air outlets (361), which are located at the bottom of the arc groove of the jacket (350).
7. A performance safety detector for concrete structural members according to claim 6, characterized in that: The heat-conducting component (400) includes two hot air blowers (410) fixed to the top surface of the body (100). Each hot air blower (410) has an air outlet on both sides. A first air duct (420) is connected between the air outlets on the same side of the two hot air blowers (410). Six second air ducts (430) are connected to one side of the first air duct (420). One end of the second air duct (430) is connected to the inside of the card holder (360).
8. A performance safety detector for concrete structural members according to claim 5, characterized in that: The injection assembly (500) includes a support platform (510) fixed to the top surface of the body (100). A water injection hole (511) is provided through the inside of the support platform (510). The water injection hole (511) is connected to the water flow channel inside the body (100). A sealing component (520) is sleeved on the top outer wall of the support platform (510). A gasket (530) is sleeved and fixed on the bottom of the support platform (510). The jacket (350) is attached to the outer wall of the sealing component (520) and the gasket (530) by translation, and the top surface of the card holder (360) is attached to the bottom surface of the gasket (530).
9. A performance safety detector for concrete structural members according to claim 8, characterized in that: The sealing component (520) includes an elastic sealing sleeve (521) fitted onto the outer wall of the top of the support platform (510). The elastic sealing sleeve (521) fits against the top surface of the gasket (530). The gasket (530) is made of heat-conducting material. A sponge ring (522) is provided inside the elastic sealing sleeve (521). The arc concave surface of the card holder (360) is provided with multiple air guide grooves (362) that communicate with the air outlet (361). The air guide grooves (362) are located at the bottom of the gasket (530).
10. A performance safety detector for concrete structural members according to claim 9, characterized in that: The sponge ring (522) has a convex-shaped cross section, and the elastic sealing sleeve (521) has a convex-shaped cavity with a through top surface. The sponge ring (522) is fitted inside the cavity of the elastic sealing sleeve (521).