A kind of leakage detection device for flowing cement asphalt mixture
The design of the leakage detection device solves the problems of high-temperature insulation, portable weighing, and real-time monitoring of fluid asphalt mixtures in construction sites and outdoor environments, achieving efficient and accurate fluidity detection and improving construction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SUIYUENAN EXPRESSWAY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-05
AI Technical Summary
In construction sites and outdoor environments, existing technologies struggle to achieve high-temperature insulation, portable weighing, and real-time monitoring of the fluidity of asphalt mixtures, leading to inaccurate test results and cumbersome operations, which in turn affects construction quality.
A leakage detection device was designed, including a filtration section, a weighing section, and a receiving section. It uses a filter screen with a 0.075mm aperture and an annular connecting port, combined with a surrounding heating section and a pressure sensor, to achieve efficient separation and weighing of asphalt mixtures. The data is displayed through a controller, reducing manual operation.
It enables efficient and accurate testing of flowable asphalt mixtures in complex environments, improving testing efficiency and data accuracy at construction sites while reducing manpower and material consumption.
Smart Images
Figure CN224328020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of on-site testing technology for asphalt mixtures, specifically to a leakage detection device for flowable asphalt mixtures. Background Technology
[0002] For fluidized asphalt mixtures, the binder must possess a certain degree of fluidity during the molding process. This indicator is typically obtained in the laboratory by measuring the ratio of the amount of binder that passes through a 0.075mm sieve to the total amount of asphalt mixture within a certain time. During this process, the sieve must be kept at the same high temperature as the asphalt mixture; otherwise, temperature differences will cause abnormal binder viscosity, directly affecting the accuracy of the test.
[0003] However, this method has some problems in construction sites and field environments: First, laboratory testing requires continuous heating of the screen to maintain a high-temperature environment, but due to limitations in experimental conditions at construction sites, the screen cannot be kept at the same high temperature as the asphalt mixture, resulting in less mass of asphalt slurry passing through the 0.075mm screen, severely distorting the test results and making it difficult to reflect the true fluidity; Second, traditional testing relies on large balance scales for weighing, which are large and heavy, and require strict flatness of the placement environment, making them difficult to carry and operate in complex terrain in the field or construction site, thus failing to achieve rapid on-site testing; Third, existing screen sets only have a screening function and cannot monitor the weight changes of residual mixture on the screen and slurry under the screen in real time, requiring manual transfer of materials to the balance scale for weighing, which is not only cumbersome and time-consuming, but may also introduce errors due to material loss or temperature changes during the transfer process, affecting the accuracy of the data.
[0004] In the environment of a construction site, the viscosity of the asphalt mortar increases after prolonged mixing, but its brittleness also rises, affecting the construction quality of the asphalt mortar mixture. Therefore, developing a leak detection device that can achieve high-temperature insulation, portable weighing, and real-time monitoring in construction environments to ensure the construction quality of the asphalt mortar mixture is an urgent problem to be solved. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a leakage detection device for flowable asphalt mixtures, mainly comprising a filtration section, a weighing section, and a receiving section. This device can be carried to the construction site or field environment, and can also regulate the temperature in the leakage chamber to provide a stable storage and experimental environment for asphalt mixtures. At the same time, it can detect the quality of the material on the filter screen, reduce equipment preparation time and manpower and material resources, and greatly improve the efficiency of scientific research and construction.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A leakage detection device for flowing asphalt mixtures, characterized in that it comprises: a shell with an open top; a top cover detachably connected to the shell, the shell and the top cover being configured internally to accommodate a leakage chamber for the asphalt mixture; the leakage chamber including a filter section and a receiving section arranged vertically, the filter section having a filter screen to separate the asphalt slurry from the asphalt mixture, leaving the asphalt mixture on the filter section, a weighing section disposed between the filter section and the receiving section for weighing the asphalt mixture on the filter section, the middle of the filter section having a connecting port for the asphalt slurry to pass through, and the receiving section for receiving the asphalt slurry passing through the weighing section; and a heating section disposed on the circumferential wall of the shell for regulating the temperature inside the leakage chamber.
[0008] According to one example, the filtration section includes a first annular cylinder open at the top and bottom, with a filter screen disposed at the bottom of the first annular cylinder; the receiving section includes a second annular cylinder open at the top, the second annular cylinder being detachably disposed at the lower part of the leakage chamber; the weighing section includes an annular component and a first data sensor disposed on the upper part of the annular component, the bottom of the annular component abutting against the top of the second annular cylinder, the top of the first data sensor abutting against the bottom of the first annular cylinder, a second data sensor cooperating with the first data sensor being disposed on the inner wall of the leakage chamber, and the communication port being disposed at the middle of the annular component.
[0009] According to one example, the annular component includes an annular plate and an annular boss disposed on the upper part of the annular plate. The annular boss is mounted on the top of the second annular cylinder and a first pressure sensor is disposed therein. The first data sensor presses against the first pressure sensor. The outer diameter of the annular plate is less than or equal to the inner diameter of the second annular cylinder.
[0010] According to one example, a second pressure sensor for detecting the quality data of the asphalt mortar is provided at the bottom of the second annular cylinder.
[0011] According to one example, the filter screen has a pore size of 0.075 mm.
[0012] According to one example, a locking block is provided on the lower surface of the second annular cylinder, and a locking groove that mates with the locking block is provided on the bottom wall of the leakage chamber.
[0013] According to one example, the heating element includes a jacket disposed on the outer wall of the housing, the jacket containing a resistance wire and a thermally conductive medium layer.
[0014] According to one example, a temperature sensor is also provided at the lower part of the leakage chamber.
[0015] According to one example, the bottom of the housing is provided with multiple support legs, which raise the housing a certain distance off the ground.
[0016] According to one example, a controller is provided on the outer wall of the housing, and the controller is connected to the weighing part, the receiving part and the heating part respectively via wires.
[0017] This utility model has the following advantages:
[0018] This utility model's leakage detection device adopts a vertically stacked structure of a filter section, a weighing section, and a receiving section. It uses a 0.075mm aperture filter screen and a connecting port of a ring-shaped component to achieve precise alignment. Under the action of the surrounding heating section of the shell, it can both heat the asphalt mixture and ensure that the asphalt slurry smoothly passes through the 0.075mm screen under high temperature, achieving efficient separation of the asphalt slurry and the mixture. Simultaneously, through the connection of pressure sensors in the weighing section and the receiving section with the controller's wires, it directly collects and displays the quality data of the slurry and remaining asphalt mixture, eliminating the need for manual weighing and transfer. This provides convenient conditions for inspecting the fluidity of the slurry in construction environments and improves detection efficiency.
[0019] This device, through the combination of resistance wire and heat-conducting oil in the heating unit, can flexibly adjust the temperature in the leakage chamber according to the different temperature requirements during the mixing, transportation, and paving of asphalt mixtures. It adapts to the corresponding temperature conditions and is powered by a rechargeable battery mounted on the outside of the casing, allowing for convenient portability to the field or construction site. This effectively reduces the manpower and time required for construction, improves research and construction efficiency, and has broad application value. The detachable connection of each component ensures structural stability and facilitates on-site operation and cleaning, guaranteeing the device's detection accuracy in complex environments. Attached Figure Description
[0020] Figure 1 This is a cross-sectional view of the leakage detection device for flowable asphalt mixtures according to this utility model.
[0021] Figure 2 This is a schematic diagram of the external structure of the leakage detection device for flowable asphalt mortar mixtures according to this utility model.
[0022] Figure 3 This is a schematic diagram of the external structure of the leakage detection device for flowable asphalt mixtures from another angle.
[0023] Among them, 1 is the shell, 101 is the side plate, 102 is the bottom plate, 103 is the top cover, 104 is the second data sensor, 105 is the temperature sensor, 1a is the leakage chamber, 2 is the filter section, 201 is the first annular cylinder, 202 is the filter screen, 3 is the weighing section, 301 is the annular component, 301a is the connecting port, 301b is the annular plate, 301c is the annular boss, 301d is the first pressure sensor, 302 is the first data sensor, 4 is the receiving section, 401 is the second annular cylinder, 402 is the second pressure sensor, 5 is the heating section, 501 is the jacket, 501a is the resistance wire, 501b is the heat-conducting medium layer, 6 is the controller, 601 is the button, 602 is the display screen, and 7 is the power supply. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0025] Reference Figure 1 The illustration shows an embodiment of a leak detection device for flowable asphalt mixtures, which mainly includes a top-open housing 1 and a top cover 103 detachably connected to the housing 1. The housing 1 and the top cover 103 are configured inside them to accommodate a leak chamber 1a of the asphalt mixture.
[0026] To achieve the separation and testing of asphalt mixtures, a filter section 2, a weighing section 3, and a receiving section 4 are arranged sequentially from top to bottom within the separation chamber 1a, forming a vertically stacked structure for separation, weighing, and receiving. The filter section 2 separates the asphalt mastic from the asphalt mixture, leaving the asphalt mixture on it. The weighing section 3, located below the filter section 2, weighs the remaining asphalt mixture. The receiving section 4, below the weighing section 3, receives the asphalt mastic that passes through the weighing section 3 and tests its quality. By integrating the screening and weighing functions, an integrated device is constructed. Combined with the heating section 5 on the circumferential wall of the shell 1 to maintain a high-temperature environment, this ensures that the flowing mastic asphalt mixture retains its original characteristics during testing. This allows for convenient and accurate testing in outdoor environments lacking power or in complex construction site environments.
[0027] Continue to refer to Figure 1The top of the housing 1 is open, and it includes a base plate 102 and side plates 101 extending upward from the side edges of the base plate 102. The base plate 102 and the side plates 101 together form an accommodating space with a top opening, providing a supporting frame for the leakage chamber 1a. The base plate 102 is horizontally arranged and can be placed on a horizontal surface. In another embodiment, the lower surface of the base plate 102 is provided with multiple support legs, which raise the housing 1 a certain distance off the ground. There can be four support legs, arranged at the four corners of the base plate 102. These support legs can be hydraulic telescopic rods. By adjusting the telescopic length of different support legs, the flatness of the placement surface can be adapted to ensure that the housing 1 is always in a horizontal state. Furthermore, a level can be installed at the bottom of the base plate 102 to visually calibrate the horizontal position of the housing 1, avoiding deviations in the asphalt grout flow trajectory or weighing data due to tilting.
[0028] The top cover 103 is detachably mounted on the top opening of the housing 1. The shape of the top cover 103 matches the shape of the housing 1, which can have a circular, triangular, quadrilateral, or other cross-sectional shape, ensuring a tight fit between the housing 1 and the top cover 103. The top cover 103 has a recessed portion that matches the contour of the top opening of the housing 1. This recessed portion is sealed to the edge of the top opening of the housing 1 by a sealing ring, preventing heat loss from the leakage chamber 1a or the entry of external impurities. A handle is also provided on the top of the top cover 103, allowing operators to hold the handle to lift and place the top cover 103, thus opening or sealing the leakage chamber 1a and improving the ease of operation on the construction site.
[0029] Continue to refer to Figure 1 The shell 1 and the top cover 103 enclose a leakage chamber 1a for containing asphalt mixture. The asphalt mixture to be tested contains flowing asphalt slurry. The leakage chamber 1a includes a filter section 2 and a receiving section 4 arranged vertically. The filter section 2 separates the asphalt mixture from the asphalt slurry through a filter screen 202, leaving the remaining asphalt mixture on the filter section 2. A weighing section 3 is located between the filter section 2 and the receiving section 4 and is used to weigh the mass of the remaining asphalt mixture on the filter section 2. A connecting port 301a is provided in the middle of the filter section 301a for the separated asphalt slurry to pass through. The receiving section 4 is used to receive the asphalt slurry passing through the connecting port 301a. During this process, the flowing asphalt slurry does not come into contact with the weighing section 3 and falls directly into the receiving section 4.
[0030] The filter section 2 includes a first annular cylinder 201 that is open at the top and bottom, located at the top of the separation chamber 1a. The bottom of the first annular cylinder 201 has an opening and is equipped with a filter screen 202 with a pore size of 0.075 mm. During testing, the asphalt mixture is poured onto the filter screen 202 inside the first annular cylinder 201. Under the action of gravity, the flowing slurry in the asphalt mixture passes through the filter screen 202, achieving separation from the remaining asphalt mixture.
[0031] The receiving part 4 includes a second annular cylinder 401 with an open top, which is detachably installed at the lower part of the leakage chamber 1a. The shape of the second annular cylinder 401 is approximately the same as that of the first annular cylinder 201 to ensure the stability of the falling path of the asphalt slurry. A second pressure sensor 402 is installed at the bottom of the second annular cylinder 401 to detect the mass data of the asphalt slurry falling into it. The flowing slurry separated from the filtering part 2 is eventually retained at the bottom of the second annular cylinder 401 under the action of gravity and is detected by the second pressure sensor 402.
[0032] In an embodiment not shown, a locking block is provided on the lower surface of the second annular cylinder 401, and a locking groove that cooperates with the locking block is provided on the bottom wall of the leakage chamber 1a. The locking block is engaged in the locking groove, which allows the operator to quickly and conveniently complete the assembly of the second annular cylinder 401, while ensuring the stability after assembly.
[0033] The weighing unit 3 is located in the middle of the leakage chamber 1a and consists of an annular component 301 and a first data sensor 302 disposed on the upper part of the annular component 301. The bottom of the annular component 301 abuts against the top of the second annular cylinder 401, and the top of the first data sensor 302 abuts against the bottom of the first annular cylinder 201. A second data sensor 104, which cooperates with the first data sensor 302, is disposed on the inner wall of the leakage chamber 1a. They cooperate to realize data transmission. A connecting port 301a is opened in the middle of the annular component 301 for asphalt slurry to pass through. In use, the receiving part 4, the weighing unit 3, and the filtering part 2 need to be placed into the housing 1 in sequence to ensure accurate contact between the first data sensor 302 and the second data sensor 104 to ensure the reliability of data transmission. In this embodiment, the inner diameter of the first annular cylinder 201, the second annular cylinder 401, and the annular component 301 is 200mm to adapt to the detection requirements of asphalt mixture.
[0034] In an embodiment not shown, the first data sensor 302 may be a spring-loaded contact sensor, and the second data sensor 104 may be a contact-type receiving sensor. They achieve data transmission through physical contact.
[0035] The annular component 301 includes an annular plate 301b and an annular boss 301c disposed on the upper part of the annular plate 301b. The annular boss 301c rests on the top of the second annular cylinder 401 and is equipped with a first pressure sensor 301d. A first data sensor 302 presses against the first pressure sensor 301d, and the mass of the remaining asphalt mixture on the filter section 2 is weighed through pressure transmission. The outer diameter of the annular plate 301b is less than or equal to the inner diameter of the second annular cylinder 401. That is to say, the annular plate 301b is embedded below the top opening of the second annular cylinder 401, making the installation of the annular component 301 and the second annular cylinder 401 more stable.
[0036] In an embodiment not shown, the annular boss 301c has an internal mounting groove, in which the first pressure sensor 301d is embedded. This arrangement protects the first pressure sensor 301d and ensures direct contact between the first data sensor 302 and the first pressure sensor 301d, thereby improving the accuracy of the weighing data.
[0037] Reference Figure 1 To ensure that the high-temperature environment required for detection is maintained within the leakage chamber 1a, the circumferential wall of the shell 1 adopts a double-layer structure, forming a closed heat-insulating cavity inside. An air gap reduces heat loss, providing a basic guarantee for temperature control. A heating element 5 is installed on the circumferential wall of the shell 1 to regulate the temperature within the leakage chamber 1a.
[0038] The heating unit 5 includes a jacket 501 wound around the outer wall of the housing 1. The jacket 501 is continuously arranged along the outer side and bottom walls of the housing 1 to form a surrounding heating space. A resistance wire 501a and a heat-conducting medium layer 501b are disposed within the jacket 501. The resistance wire 501a is spirally distributed on the outer side wall of the housing 1, serving as a heating source by converting electrical energy into heat energy. The heat-conducting medium layer 501b is tightly attached to the outer surface of the side and bottom walls of the housing 1. The heat-conducting medium layer 501b can be a high-heat-capacity medium such as hot water or heat-conducting oil. Its function is to evenly conduct the heat generated by the resistance wire 501a to the housing 1, and then indirectly heat the interior of the leakage chamber 1a through the housing 1, avoiding uneven temperature caused by localized overheating. The jacket 501 can be integrally formed with the side plate 101 of the housing 1 or formed separately.
[0039] In order to monitor and regulate the temperature, a temperature sensor 105 is installed on the lower inner wall of the separation chamber 1a. Its sensing end is in direct contact with the internal environment of the separation chamber 1a, which can monitor the indoor temperature and transmit the data to the controller 6. Together with the heating unit 5, it forms a closed-loop temperature control to ensure that the asphalt mixture is always in a stable high temperature state during the testing process, and avoid the influence of temperature fluctuation on the flowability of the mortar and the separation effect.
[0040] Reference Figure 2A controller 6 is mounted on the outer wall of the housing 1, and is connected to the weighing part 3, the receiving part 4, and the heating part 5 via wires. Specifically, the controller 6 is connected to the first data sensor 302, the second data sensor 104, the first pressure sensor 301d, the second pressure sensor 402, and the resistance wire 501a via wires. The controller 6 includes a display screen 602 and multiple buttons 601. The display screen 602 is used to visually display various detection data, and the buttons 601 are used for temperature adjustment and parameter setting.
[0041] The controller 6 regulates the operating state of the resistance wire 501a in the heating unit 5, which, in conjunction with the temperature sensor 105 inside the housing 1, maintains a preset temperature in the leakage chamber 1a. This temperature can be adjusted and set via button 601 on the controller 6 according to the environmental requirements for asphalt mixture transportation, insulation, or paving. The first pressure sensor 301d of the weighing unit 3 is connected to the controller 6, and the initial tare operation is performed via button 601 on the controller 6 to eliminate the influence of the weighing unit 3's own structure on the test results.
[0042] The second pressure sensor 402 of the receiving part 4 is connected to the controller 6 and can transmit the mass data of the received asphalt mortar to the controller 6. At the same time, the first data sensor 302 and the second data sensor 104 cooperate to transmit the mass data of the remaining asphalt mixture detected by the weighing part 3 to the controller 6, and display it on the display screen 602 to realize the visualization of the mass data.
[0043] In this system, the filter screen 202 of the filtration section 2 forms a corresponding structure with the first annular cylinder 201, the connecting port 301a of the weighing section 3, and the second annular cylinder 401 of the receiving section 4. The asphalt slurry can pass through these structures sequentially and ultimately remain at the bottom of the second annular cylinder 401. Throughout the process, the coordinated structure of each component ensures the smooth separation of the asphalt mixture and the slurry, as well as the successful quality testing. Furthermore, the filtration section 2, weighing section 3, and receiving section 4 are all detachable. The asphalt mixture in the filtration section 2 can be poured into the waste recycling area, and any residual asphalt on the filter screen 202 can be immediately removed to prevent clogging of the screen holes, ensuring the accuracy of subsequent testing and extending the equipment's lifespan.
[0044] Reference Figure 3 The outer wall of the housing 1 is also equipped with a power supply 7, which is a rechargeable battery. It is connected to the controller 6, the first data sensor 302, the second data sensor 104, the first pressure sensor 301d and the second pressure sensor 402 through wires to supply power to each component.
[0045] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention should be considered equivalent substitutions and are included within the protection scope of the present invention. The embodiments described in this disclosure are intended as non-limiting examples, and other embodiments may take various and alternative forms. Furthermore, the drawings are not necessarily to scale and may present simplified expressions of various features of the present disclosure, including, for example, specific dimensions, orientations, positions, and shapes. Details associated with such features will be determined in part by the intended application and usage environment of the described embodiments.
[0046] The detailed description and accompanying drawings are supporting and descriptive of this teaching, but the scope of this teaching is defined only by the claims. While the best mode and some other embodiments for carrying out this teaching have been described in detail, various alternative designs and embodiments exist for practicing the teaching as defined in the appended claims. Furthermore, this disclosure expressly includes combinations and sub-combinations of the elements and features set forth above and below.
Claims
1. A leakage detection device for flowable asphalt mixtures, characterized in that, include: An open-top shell; A top cover detachably connected to the housing, the housing and the top cover being configured internally therein to accommodate a leakage chamber for asphalt mixture; The separation chamber includes a filter section and a receiving section arranged vertically. The filter section has a filter screen to separate the asphalt slurry from the asphalt mixture, so that the asphalt mixture is retained on the filter section. A weighing section is provided between the filter section and the receiving section for weighing the asphalt mixture on the filter section. The middle part of the weighing section has a connecting port for the asphalt slurry to pass through. The receiving section is used to receive the asphalt slurry that passes through the weighing section. A heating element is disposed on the circumferential wall of the housing and is used to regulate the temperature in the leakage chamber.
2. The leakage detection device according to claim 1, characterized in that, The filtration section includes a first annular cylindrical body that is open at the top and bottom, and the filter screen is disposed at the bottom of the first annular cylindrical body; The receiving part includes a second annular cylinder with an open top, which is detachably disposed at the lower part of the leakage chamber; The weighing unit includes an annular component and a first data sensor disposed on the upper part of the annular component. The bottom of the annular component abuts against the top of the second annular cylinder, and the top of the first data sensor abuts against the bottom of the first annular cylinder. A second data sensor that cooperates with the first data sensor is disposed on the inner wall of the leakage chamber, and the communication port is disposed in the middle of the annular component.
3. The leakage detection device according to claim 2, characterized in that, The annular component includes an annular plate and an annular boss disposed on the upper part of the annular plate. The annular boss is mounted on the top of the second annular cylinder and a first pressure sensor is disposed therein. The first data sensor presses against the first pressure sensor. The outer diameter of the annular plate is less than or equal to the inner diameter of the second annular cylinder.
4. The leakage detection device according to claim 2, characterized in that, A second pressure sensor for detecting the quality data of the asphalt mortar is provided at the bottom of the second annular cylinder.
5. The leakage detection device according to claim 2, characterized in that, The filter screen has a pore size of 0.075 mm.
6. The leakage detection device according to claim 2, characterized in that, The lower surface of the second annular cylinder is provided with a locking block, and the bottom wall of the leakage chamber is provided with a locking groove that cooperates with the locking block.
7. The leakage detection device according to claim 1, characterized in that, The heating element includes a jacket disposed on the outer wall of the housing, and the jacket contains a resistance wire and a heat-conducting medium layer.
8. The leakage detection device according to claim 1, characterized in that, A temperature sensor is also installed at the bottom of the leakage chamber.
9. The leakage detection device according to claim 1, characterized in that, The bottom of the housing is provided with multiple support legs, which raise the housing a certain distance off the ground.
10. The leakage detection device according to claim 1, characterized in that, A controller is provided on the outer wall of the housing, and the controller is connected to the weighing part, the receiving part and the heating part respectively through wires.