Condenseness detection device for modified asphalt
By using a spring-loaded triangular clamp and tripod structure in the modified asphalt consistency testing device, the problem of failure caused by accidental contact and movement of the sample dish during the testing process was solved, and the stability and efficiency of simultaneous testing of multiple samples were improved.
Patent Information
- Application Number
- CN202520161670.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing modified asphalt consistency testing devices are prone to failure during testing due to accidental contact or movement of the sample container, and can only test one sample at a time, affecting testing efficiency.
The sample dish is secured by a spring-loaded triangular clamp and a tripod structure, ensuring stable placement within the flat-bottomed glass dish and allowing multiple samples to be secured simultaneously, preventing accidental contact and movement.
This improved the stability and efficiency of modified asphalt consistency testing, reduced the frequency of test failures, and increased work efficiency.
Smart Images
Figure CN223870480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of asphalt testing technology, and in particular to a consistency testing device for modified asphalt. Background Technology
[0002] Modified asphalt is an asphalt binder made by adding external admixtures (modifiers) such as rubber, resin, polymer, finely ground rubber powder, or other fillers, or by taking measures such as slight oxidation processing of asphalt, to improve the performance of asphalt or asphalt mixtures. Asphalt consistency is one of the main performance indicators of asphalt. It refers to the degree of softness / hardness and viscosity of asphalt. The consistency of modified asphalt is mainly tested through a penetration test. Penetration is an important indicator for measuring asphalt consistency. It is generally measured using a penetration meter. The standard needle of the penetration meter is vertically inserted into the asphalt sample, and the penetration value is measured under specified temperature and time conditions to evaluate the consistency of the asphalt. The penetration test is conducted according to T0604-2011 of the "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011). The standard needle is vertically inserted into the asphalt sample, and the penetration value is recorded. Generally, the larger the penetration value, the softer the asphalt and the lower its consistency.
[0003] When performing penetration testing on the same modified asphalt sample, at least three parallel tests are required, and the number of asphalt samples required for each test is different. In addition, a spare sample needs to be reserved for each test so that a backup sample can be retested immediately after a test fails. Moreover, in the existing technology, the flat-bottomed glass dish containing constant temperature water is supported by a tripod at the bottom, but it is not stably fixed. During the test, the sample dish is prone to accidental collision or movement, which affects the test and leads to test failure. In addition, the existing technology can only hold one sample for testing in the flat-bottomed glass dish. After a test failure, the sample must be retrieved from the constant temperature water tank again, resulting in low testing efficiency.
[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a consistency testing device for modified asphalt. Utility Model Content
[0005] The purpose of this invention is to provide a device for detecting the consistency of modified asphalt by stably fixing a sample dish containing modified asphalt, thereby enabling stable detection of the modified asphalt consistency, and by simultaneously fixing multiple sample dishes inside a flat-bottomed glass dish to improve detection efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model discloses a consistency testing device for modified asphalt, comprising a needle penetration meter body, a flat-bottomed glass dish placed on the testing platform of the needle penetration meter body, water for maintaining the asphalt constant temperature and a sample dish for holding the asphalt inside the flat-bottomed glass dish, and a spring-loaded triangular clamping bracket for supporting the sample dish placed inside the flat-bottomed glass dish.
[0008] The spring-loaded triangular clamping bracket includes a central support rod. Three sets of connecting ears are evenly distributed on the side surface of the upper end of the central support rod. Each set of connecting ears is equipped with a swing support rod. One end of the swing support rod is hinged to the connecting ear, and the other end is equipped with a limiting baffle. An arc-shaped spring piece is connected between the middle of the lower surface of the swing support rod and the side surface of the central support rod.
[0009] Furthermore, the arc-shaped spring is a metal spring.
[0010] Furthermore, the naturally extended state of the arc-shaped spring is arc-shaped, and when the arc-shaped spring is in its naturally extended state, it supports the swing support rod to tilt upward.
[0011] Furthermore, when the arc-shaped spring is in its naturally extended state, the upward tilt angle of the swing support rod is in the range of 10°-20°.
[0012] Furthermore, when the sample dish is placed into the spring-loaded triangular clamping bracket, the swing support rod is in a horizontal state and the limiting baffle is clamped on the sample dish.
[0013] Furthermore, a tripod structure is placed at the bottom of the flat-bottomed glass dish to support three sets of spring-loaded triangular clamping brackets. The tripod structure includes a central column, and three sets of supporting base plates are evenly distributed on the lower side surface of the central column. All three sets of supporting base plates are placed horizontally on the bottom surface of the sample dish, and the spring-loaded triangular clamping brackets are provided on the upper surface of all three sets of supporting base plates.
[0014] The lower end of the middle support rod of the spring-loaded triangular clamping bracket is vertically connected to the upper surface of the support base plate.
[0015] Furthermore, a lifting ring is provided at the top of the middle column.
[0016] In the above technical solution, the consistency testing device for modified asphalt provided by this utility model has the following beneficial effects:
[0017] The spring-loaded triangular clamping bracket of this utility model can stably fix the sample dish, and is easy to operate and stable. Combined with the triangular bracket structure, the sample dish containing the modified asphalt sample is stably placed in the flat-bottomed glass dish for testing, so as to avoid accidental collision or movement of the sample dish and affect the testing operation. At the same time, this device can place multiple sample dishes in the flat-bottomed glass dish at the same time to improve the testing efficiency. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 A schematic diagram of the structure of a consistency testing device for modified asphalt provided in an embodiment of this utility model;
[0020] Figure 2 A schematic diagram of a triangular frame structure supporting a spring-loaded triangular clamping bracket for a consistency testing device for modified asphalt, provided for an embodiment of this utility model;
[0021] Figure 3 A top view of a tripod structure for a consistency testing device for modified asphalt, provided as an embodiment of this utility model;
[0022] Figure 4 A top view of a spring-loaded triangular clamping bracket for a consistency testing device for modified asphalt, provided as an embodiment of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Penetration meter body; 2. Flat-bottomed glass dish; 3. Sample dish; 4. Central support rod; 5. Connecting lug; 6. Swing support rod; 7. Limiting baffle; 8. Arc-shaped spring; 9. Central column; 10. Support base plate; 11. Lifting ring. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0026] See Figures 1 to 4 As shown;
[0027] This embodiment discloses a consistency testing device for modified asphalt, including a needle penetration meter body 1. The needle penetration meter body 1 is a prior art device for measuring the consistency of modified asphalt by needle penetration testing. A flat-bottomed glass dish 2 is placed on the testing platform of the needle penetration meter body 1. The flat-bottomed glass dish 2 is used to hold water to maintain the temperature of the asphalt and a sample dish 3 containing the asphalt. The constant temperature water in the flat-bottomed glass dish 2 can be set to a constant temperature of 15°, 25° or 30° through a constant temperature water tank as needed, and the modified asphalt in the sample dish 3 is kept at a constant temperature by the constant temperature water for needle penetration testing. A spring-loaded triangular clamping bracket is placed in the flat-bottomed glass dish 2 to support the sample dish 3, so as to stably fix the sample dish 3 containing the asphalt in the sample dish 3, so as to maintain a stable position when the needle penetration meter body 1 is used for testing.
[0028] The spring-loaded triangular clamping bracket includes a central support rod 4. Three sets of connecting ears 5 are evenly distributed on the upper side surface of the central support rod 4. Each set of connecting ears 5 is equipped with a swing support rod 6. One end of the swing support rod 6 is hinged to the connecting ear 5, and the other end is equipped with a limiting baffle 7. An arc-shaped spring piece 8 connects the lower surface of the swing support rod 6 to the side surface of the central support rod 4 at the middle position. Specifically, in actual operation, the bottom of the asphalt-filled sample container 3 is pressed against the limiting baffle 7 and pushed downwards, causing the swing support rod 6 to swing downwards. This causes the arc-shaped spring piece 8 to increase its bending amplitude to accumulate elastic force. After pressing the bottom of the sample container 3 into the inner side of the limiting baffle 7 of the three sets of swing support rods 6, the sample container 3 is released. Under the action of the rebound force of the arc-shaped spring piece 8, the three sets of swing support rods 6 drive the limiting baffle 7 to clamp the sample container 3 on the outer surface of its bottom, thus clamping and fixing the sample container 3.
[0029] Furthermore, the arc-shaped spring 8 is a metal spring, which can accumulate elastic force through bending to provide clamping force for the three sets of swing support rods 6 to drive the limiting baffle 7 to clamp on the outer surface of the bottom of the sample container 3.
[0030] Furthermore, the natural extended state of the arc-shaped spring 8 is arc-shaped. When the arc-shaped spring 8 is in its natural extended state, the supporting swing support rod 6 is tilted upward. At this time, the sample dish 3 is not placed. When the sample dish 3 is placed, the swing support rod 6 swings downward so that the arc-shaped spring 8 increases its bending amplitude to accumulate clamping force on the sample dish 3.
[0031] Furthermore, when the arc-shaped spring 8 is in its naturally extended state, the upward tilt angle of the swing support rod 6 is in the range of 10°-20°, so that the upward tilt angle of the swing support rod 6 should not be too large, so that when placing the sample dish 3, it is convenient to press the sample dish 3 into the inner side of the limiting baffle 7 on the three sets of swing support rods 6 for clamping and fixing, and the arc-shaped spring 8 applies moderate elastic force to facilitate the removal of the sample dish 3.
[0032] Furthermore, when the sample dish 3 is placed into the spring-loaded triangular clamping bracket, the swing support rod 6 is in a horizontal state and the limiting baffle 7 is clamped on the sample dish 3. At this time, the elastic deformation of the arc-shaped spring piece 8 generates an elastic force to apply a clamping force to the sample dish 3, and the bottom of the sample dish 3 abuts against the top of the middle support rod 4 and the upper surface of the horizontal swing support rod 6.
[0033] Furthermore, a triangular frame structure is placed at the bottom of the flat-bottomed glass dish 2 to support three sets of spring-loaded triangular clamping brackets. The triangular frame structure includes a central column 9, and three sets of supporting base plates 10 are evenly distributed on the lower side surface of the central column 9. The three sets of supporting base plates 10 are all placed horizontally on the bottom surface of the sample dish 3, and spring-loaded triangular clamping brackets are provided on the upper surface of the three sets of supporting base plates 10.
[0034] The lower end of the middle support rod 4 of the spring-loaded triangular clamping bracket is vertically connected to the upper surface of the support base plate 10.
[0035] Specifically, three sets of support plates 10 distributed on the central column 9 are placed at the bottom of the flat-bottomed glass dish 2 to balance and support the three sets of spring-loaded triangular clamping brackets, thus simultaneously fixing three sample dishes 3. To prevent the spring-loaded triangular clamping brackets from shifting or sliding within the flat-bottomed glass dish 2, the ends of the three sets of support plates 10 are placed against the inner wall of the flat-bottomed glass dish 2 for stable placement. The spring-loaded triangular clamping brackets further stabilize the sample dishes 3 during the testing operation, making the penetration tester's consistency testing of modified asphalt more stable. Furthermore, the tripod structure, by setting three sets of spring-loaded triangular clamping brackets to simultaneously fix three sets of sample dishes 3, allows three sets of samples to be loaded into the flat-bottomed glass dish 2 for testing at the same time. This avoids the need to retrieve samples from the constant temperature water tank and reduce testing efficiency in case of test failure due to various circumstances. This device effectively ensures testing efficiency.
[0036] Furthermore, the top of the central column 9 is provided with a lifting ring 11, which allows the tripod structure and the sample dish 3 on the tripod structure to be lifted by lifting the tripod structure. It also makes it easier to manually rotate the tripod structure by lifting the lifting ring 11 to adjust the position of the sample dish 3, so as to switch different sample dishes 3 for testing and improve the testing efficiency.
[0037] In the above technical solution, the consistency testing device for modified asphalt provided by this utility model has the following beneficial effects:
[0038] The spring-loaded triangular clamping bracket of this utility model can stably fix the sample dish, and is easy to operate and stable. Combined with the triangular bracket structure, the sample dish containing the modified asphalt sample is stably placed in the flat-bottomed glass dish for testing, so as to avoid accidental collision or movement of the sample dish and affect the testing operation. At the same time, this device can place multiple sample dishes in the flat-bottomed glass dish at the same time to improve the testing efficiency.
[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A consistency testing device for modified asphalt, comprising a needle penetration meter body (1), a flat-bottomed glass dish (2) placed on the testing platform of the needle penetration meter body (1), the flat-bottomed glass dish (2) containing water for maintaining the asphalt at a constant temperature and a sample dish (3) containing the asphalt, characterized in that, A spring-loaded triangular clamping bracket is placed inside the flat-bottomed glass dish (2) to support the sample dish (3); The spring-loaded triangular clamping bracket includes a middle support rod (4). Three sets of connecting ears (5) are evenly distributed on the side surface of the upper end of the middle support rod (4). Each set of connecting ears (5) is provided with a swing support rod (6). One end of the swing support rod (6) is hinged to the connecting ear (5), and the other end is provided with a limiting baffle (7). An arc-shaped spring piece (8) is connected between the middle position of the lower surface of the swing support rod (6) and the side surface of the middle support rod (4).
2. The consistency testing device for modified asphalt according to claim 1, characterized in that, The arc-shaped spring (8) is a metal spring.
3. The consistency testing device for modified asphalt according to claim 1, characterized in that, The arc-shaped spring (8) is naturally extended in an arc shape. When the arc-shaped spring (8) is in its naturally extended state, it supports the swing support rod (6) to tilt upward.
4. The consistency testing device for modified asphalt according to claim 1, characterized in that, When the arc-shaped spring (8) is in a naturally extended state, the upward tilt angle of the swing support rod (6) is in the range of 10°-20°.
5. The consistency testing device for modified asphalt according to claim 1, characterized in that, When the sample dish (3) is placed into the spring-loaded triangular clamping bracket, the swing support rod (6) is in a horizontal state and the limiting baffle (7) clamps the sample dish (3).
6. The consistency testing device for modified asphalt according to claim 1, characterized in that, The bottom of the flat-bottomed glass dish (2) is equipped with a triangular frame structure to support three sets of spring-loaded triangular clamping brackets. The triangular frame structure includes a central column (9). Three sets of support base plates (10) are evenly distributed on the lower side surface of the central column (9). The three sets of support base plates (10) are all placed horizontally on the bottom surface of the sample dish (3). The spring-loaded triangular clamping brackets are provided on the upper surface of the three sets of support base plates (10). The lower end of the middle support rod (4) of the spring-loaded triangular clamping bracket is vertically connected to the upper surface of the support base plate (10).
7. The consistency testing device for modified asphalt according to claim 6, characterized in that, The top of the middle column (9) is provided with a lifting ring (11).