Auxiliary assembly tool for asphalt concrete sample
By designing auxiliary assembly tools, the sliding seat and guide column were used to open the elastic seal, which solved the problem of installing large-diameter asphalt concrete samples on the outside of the rubber membrane, thus improving assembly efficiency and the reliability of test results.
Patent Information
- Application Number
- CN202423309556.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the existing technology, when installing elastic seals on the outside of the rubber membrane for asphalt concrete specimens with a diameter of 100 mm or more, it is difficult to open them and it is time-consuming and laborious. Multiple people operating the test can easily damage the specimens and affect their verticality, thus hindering the triaxial test process.
An auxiliary assembly tool is used, including a fixed seat, a sliding seat, and a guide post. The support on the sliding seat opens the elastic seal and is fixed by a locking mechanism, providing a stable assembly space, simplifying the operation process, and avoiding direct force on the sample.
It improves the assembly efficiency of elastic seals, reduces specimen damage and perpendicularity effects, and ensures the accuracy and reliability of test results, making it particularly suitable for assembling large-diameter specimens.
Smart Images
Figure CN223742110U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bituminous concrete sample test frock equipment technical field, concretely relates to a kind of auxiliary assembly tool for bituminous concrete sample. BACKGROUND
[0002] In the asphalt concrete triaxial test, the asphalt concrete sample will be placed in the pressure chamber and be applied to the surrounding pressure and axial pressure, and the fluid such as pore water or pore oil will be injected to simulate the pore water pressure and other conditions in the actual engineering. Among them, the outside of the asphalt concrete sample is wrapped with rubber film to form a sealed environment, effectively preventing the exchange of fluid inside the sample with external liquid, ensuring the stability of the pore pressure and water content and other parameters inside the sample during the test, so as to ensure the accuracy of the test results.
[0003] In order to ensure the sealing of the connection between the rubber film and the pressure vessel, an elastic sealing element is usually arranged at the connection, and the elastic sealing element is used to apply radial compression force to the rubber film, thereby ensuring the sealing effect. For example, an O-shaped rubber ring is arranged at the end of the rubber film. When the O-shaped rubber ring is sleeved, two people are generally needed to complete the work, one holding the rubber film and the other stretching the O-shaped rubber ring to a sufficient size with both hands and sleeving the rubber film outside the asphalt concrete sample.
[0004] In the prior art, the elastic sealing element is stretched by using a bifurcated lever structure for the sample nesting with a diameter of 39.1mm or less. However, it is difficult to stretch the elastic sealing element to a proper size for the asphalt concrete sample with a diameter of 100mm. The assembly method of the above-mentioned O-shaped rubber ring is time-consuming and laborious, and it is difficult to pull out the four fingers after installation, and the O-shaped rubber ring is often broken, which greatly affects the progress of the triaxial test. SUMMARY
[0005] The utility model aims at providing an auxiliary assembly tool for the asphalt concrete sample during the triaxial test, to reduce the difficulty of installing the elastic sealing element outside the rubber film, especially for the working condition of the asphalt concrete sample with a diameter of 100mm or more, to avoid the damage to the sample and the influence on the verticality of the sample caused by manual installation of the elastic sealing element by multiple people, and to reduce the disturbance to the sample.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following scheme:
[0007] An auxiliary assembly tool for bituminous concrete sample, comprising a fixed seat, a sliding seat and a guide column;
[0008] A pair of guide columns are arranged in parallel, end portions of the guide columns are mounted on a fixed seat, the sliding seat is configured to slide along the guide columns, an assembly space for accommodating the asphalt concrete sample is formed between the sliding seat and the fixed seat;
[0009] Wherein, the fixed seat and the sliding seat are both provided with supports for contacting the elastic seal, the support on the sliding seat is configured to move away from the support on the fixed seat with the movement of the sliding seat, and the elastic seal is pried open in the assembly space.
[0010] As preferred, the sliding seat is provided with a locking mechanism, the locking mechanism is configured to lock the sliding seat on the guide column.
[0011] As preferred, the locking mechanism includes a set screw, the sliding seat is provided with a threaded hole for screwing the set screw, the set screw is configured to be screwed in the threaded hole, an end portion thereof is in contact with the side wall of the guide column, and the position of the sliding seat on the guide column is locked.
[0012] As preferred, the sliding seat is provided with a through hole, the guide column is embedded in the through hole.
[0013] As preferred, the support includes a mounting portion, a supporting portion and a contraction portion connected in sequence, the mounting portion is configured to mount the support on the fixed seat and the sliding seat, and a circular arc transition surface is provided between the supporting portion and the contraction portion.
[0014] As preferred, the distance between the pair of guide columns is 110mm-130mm.
[0015] As preferred, the sliding seat is provided with a handle.
[0016] As preferred, the guide column is connected with the fixed seat through a fastener.
[0017] The utility model provides a kind of auxiliary assembly tool for asphalt concrete sample compared with prior art, with following essential characteristics and progress: the auxiliary assembly tool for asphalt concrete sample is slid along the guide column by sliding seat, and elastic sealing member is opened with the support on sliding seat and it moves, it is relatively simple and standardized to operate, and elastic sealing member can be quickly opened to appropriate size and form stable assembly space, the difficulty of installing elastic sealing member outside rubber film is greatly reduced, the overall assembly efficiency is improved, especially when batch testing, work progress can be significantly improved, compared with the assembly mode of elastic sealing member in prior art, the auxiliary assembly tool provides special assembly space for sample, avoids direct force to sample in the process of opening elastic sealing member, reduces the possibility of sample damage, so as to ensure the integrity of sample, ensure that the sample used in test can truly reflect the performance of asphalt concrete, improve the reliability of test result, especially in the working condition of the asphalt concrete sample with diameter of 100mm and above, avoid the damage of manual installation of elastic sealing member to sample and the influence on the perpendicularity of sample, reduce the disturbance to sample. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a kind of auxiliary assembly tool for asphalt concrete sample in the utility model embodiment three-dimensional structure schematic view.
[0019] Figure 2 It is Figure 1 It is the three-dimensional structure schematic view of auxiliary assembly tool for asphalt concrete sample in another view in
[0020] Figure 3 It is Figure 1 Front view.
[0021] Figure 4 It is Figure 3 It is bottom view.
[0022] Figure 5 It is the three-dimensional structure schematic view of support in the utility model embodiment.
[0023] Reference numerals: 1, fixed seat;2, sliding seat;3, guide column;4, assembly space;5, support;6, locking mechanism;7, handle;8, fastener;51, installation part;52, support part;53, contraction part. DETAILED DESCRIPTION
[0024] The specific embodiment of the utility model is described in detail below in conjunction with the drawings.
[0025] As Figures 1-5As shown in the present invention, an auxiliary assembly tool for asphalt concrete specimens is proposed. It aims to reduce the difficulty of installing elastic seals on the outside of the rubber diaphragm during triaxial testing of asphalt concrete specimens, especially for asphalt concrete specimens with a diameter of 100 mm or more. This tool avoids damage to the specimen and the impact on the perpendicularity of the specimen caused by multiple people manually installing the elastic seals, and reduces disturbance to the specimen.
[0026] The auxiliary assembly tool for asphalt concrete specimens proposed in this embodiment uses a sliding seat that slides along a guide post. A support member on the sliding seat moves with the guide post to open the elastic seal. The operation is relatively simple and standardized, allowing the elastic seal to be quickly opened to a suitable size and form a stable assembly space. This significantly reduces the difficulty of installing the elastic seal on the outside of the rubber diaphragm and improves overall assembly efficiency. Furthermore, this auxiliary assembly tool provides a dedicated assembly space for the specimen, avoiding direct force on the specimen during the opening of the elastic seal, reducing the possibility of specimen damage, thus ensuring specimen integrity. It also avoids damage to the specimen and the impact on specimen perpendicularity caused by multiple people manually installing the elastic seal, minimizing disturbance to the specimen.
[0027] like Figure 1 , Figure 2 An auxiliary assembly tool for asphalt concrete specimens includes a fixed base 1, a sliding base 2, and guide posts 3. A pair of guide posts 3 are arranged in parallel. The ends of the guide posts 3 are mounted on the fixed base 1. The sliding base 2 is configured to slide along the guide posts 3, and an assembly space 4 for accommodating the asphalt concrete specimen is formed between the sliding base 2 and the fixed base 1.
[0028] Both the fixed seat 1 and the sliding seat 2 are provided with support members 5 for contacting the elastic seal. The support member 5 on the sliding seat 2 is configured to move away from the support member 5 on the fixed seat 1 as the sliding seat 2 moves, and to open up the elastic seal in the assembly space 4.
[0029] like Figure 2 Combination Figure 3 As shown, a locking mechanism 6 is provided on the sliding seat 2. The locking mechanism 6 is configured to lock the sliding seat 2 onto the guide post 3. During the assembly of the asphalt concrete sample and the elastic seal, when the sliding seat 2 slides to the appropriate position to expand the elastic seal to the required state, the locking mechanism 6 can immediately lock the sliding seat 2 onto the guide post 3.
[0030] In this way, the accidental movement of the sliding seat 2 caused by external factors such as slight collision, vibration, etc. is avoided, thereby ensuring the stability of the assembly space 4. The operator can perform the subsequent operation of installing the elastic sealing member in a stable environment, reducing the operation errors caused by the change of the assembly space 4, and further improving the accuracy and reliability of the assembly process.
[0031] For example, the locking mechanism 6 includes a tightening screw. The sliding seat 2 is provided with a threaded hole for screwing the tightening screw. The tightening screw is configured to be screwed into the threaded hole, and the end thereof is in contact with the side wall of the guide column 3, thereby locking the position of the sliding seat 2 on the guide column 3.
[0032] According to some preferred embodiments of the present application, the sliding seat 2 is provided with a through hole, and the guide column 3 is embedded in the through hole. The design of the guide column 3 embedded in the through hole provides a very precise guide path for the movement of the sliding seat 2. In the process of assembling the asphalt concrete sample, the linear motion of the sliding seat 2 along the guide column 3 is strictly regulated, effectively avoiding the possible lateral deviation, rotation or other irregular motion of the sliding seat 2, so that the support 5 on the sliding seat 2 can always maintain a stable and precise relative positional relationship when expanding the elastic sealing member, ensuring that the elastic sealing member is uniformly stressed and expanded in all directions.
[0033] For example, the guide column 3 and the through hole on the sliding seat 2 are in clearance fit in terms of assembly size. The embedded design of the through hole and the guide column 3 makes the overall structure of the assembly tool more compact and simple. In the assembly process, the guide column 3 can be easily inserted into the through hole of the sliding seat 2, reducing the complex installation steps and adjustment procedures, and further improving the assembly efficiency.
[0034] As shown in Figure 4 A handle 7 is provided on the sliding seat 2. The handle 7 provides a convenient and direct force point for the operator. During the process of adjusting the position of the sliding seat 2 to expand the elastic sealing member or assemble the sample, the operator can easily apply force by holding the handle 7, so that the sliding seat 2 moves smoothly along the guide column 3. Compared with directly pushing the edge or other parts of the sliding seat 2, the presence of the handle 7 makes the operation more convenient and natural, reducing the operation errors caused by inconvenient force application.
[0035] According to some preferred embodiments of the present application, the distance between the pair of guide columns 3 is 110mm-130mm. It is especially suitable for the working condition of the asphalt concrete sample with a diameter of 100mm. The support 5 on the sliding seat 2 expands the elastic sealing member as it moves, which can quickly expand the elastic sealing member to an appropriate size and form a stable assembly space 4, avoiding the damage to the sample and the influence on the perpendicularity of the sample caused by manual installation of the elastic sealing member by multiple people, and reducing the disturbance to the sample.
[0036] AsFigure 1 As shown in the figure, the guide column 3 is connected with the fixed seat 1 through the fastener 8. In this way, when the auxiliary assembly tool is assembled, the operator can conveniently and accurately position and fix the guide column 3 on the fixed seat 1.
[0037] As shown in the figure, the support 5 comprises an installation part 51, a support part 52 and a contraction part 53 connected in sequence. The installation part 51 is configured to install the support 5 on the fixed seat 1 and the sliding seat 2, and an arc transition surface is arranged between the support part 52 and the contraction part 53. Figure 4 As shown in the figure, the support 5 comprises an installation part 51, a support part 52 and a contraction part 53 connected in sequence. The installation part 51 is configured to install the support 5 on the fixed seat 1 and the sliding seat 2, and an arc transition surface is arranged between the support part 52 and the contraction part 53. Figure 5 As shown in the figure, the support 5 comprises an installation part 51, a support part 52 and a contraction part 53 connected in sequence. The installation part 51 is configured to install the support 5 on the fixed seat 1 and the sliding seat 2, and an arc transition surface is arranged between the support part 52 and the contraction part 53.
[0038] As shown in the figure, the support 5 comprises an installation part 51, a support part 52 and a contraction part 53 connected in sequence. The installation part 51 is configured to install the support 5 on the fixed seat 1 and the sliding seat 2, and an arc transition surface is arranged between the support part 52 and the contraction part 53.
[0039] The auxiliary assembly tool for the asphalt concrete sample disclosed in the embodiment of the utility model is used, two guide columns 3 are acrylic material cylinders, the diameter of the cylinder is 8mm, the length of the two ends of the cylinder is 150mm, the distance between the two columns is fixed as 110mm, and the surface of the two cylinders is smooth. A pair of supports 5 are arranged on the sliding seat 2 and the fixed seat 1 respectively.
[0040] Firstly, the elastic sealing element is sleeved on the support 5 of the fixed seat 1 and the support 5 of the sliding seat 2, and the bottom edge of the elastic sealing element is ensured to be closely attached to the support 5 without wrinkles or distortion. The handle 7 is slowly pushed, the sliding seat 2 is moved away from the fixed seat 1 along the guide column 3, the support 5 on the sliding seat 2 stretches the elastic sealing element, and a regular space suitable for containing the asphalt concrete sample is formed between the sliding seat 2 and the fixed seat 1.
[0041] When the elastic sealing element is stretched to a proper size, the sliding seat 2 is locked on the guide column 3 by using the locking screw. The locking screw is screwed, the end of the locking screw is closely contacted with the side wall of the guide column 3, enough friction and extrusion force are generated, and the sliding seat 2 is prevented from moving accidentally in the subsequent operation.
[0042] Subsequently, the prepared asphalt concrete sample is placed in the space formed by the stretched elastic sealing element, and the sample is ensured to be located at the center position of the assembly space 4. The operator manually slides the stretched elastic sealing element from the side wall of the support part 52 to the side wall of the contraction part 53 to the position where the rubber film needs to be tightened.
[0043] The utility model is not limited to the specific technical scheme described in the above embodiment, in addition to the above embodiment, the utility model can have other implementation manners. For the person skilled in the art, any modification, equivalent replacement, improvement etc. of the technical scheme formed within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. An auxiliary assembly tool for an asphalt concrete sample, characterized by, The device comprises a fixed seat (1), a sliding seat (2) and a guide column (3); A pair of guide columns (3) are arranged in parallel, the end of the guide column (3) is installed on the fixed seat (1), the sliding seat (2) is configured to slide along the guide column (3), and the assembly space (4) for accommodating the asphalt concrete sample is formed between the sliding seat (2) and the fixed seat (1); Wherein, the fixed seat (1) and the sliding seat (2) are provided with a support (5) for contacting the elastic sealing element, the support (5) on the sliding seat (2) is configured to move away from the support (5) on the fixed seat (1) with the movement of the sliding seat (2), and the elastic sealing element is expanded in the assembly space (4).
2. The tool for the auxiliary assembly of asphalt concrete samples according to claim 1, characterized in that, The sliding seat (2) is provided with a locking mechanism (6), and the locking mechanism (6) is configured to lock the sliding seat (2) on the guide column (3).
3. The tool for the auxiliary assembly of asphalt concrete samples according to claim 2, characterized in that, The locking mechanism (6) comprises a locking screw, the sliding seat (2) is provided with a threaded hole for screwing the locking screw, and the locking screw is configured to be screwed into the threaded hole, the end of the locking screw is in contact with the side wall of the guide column (3), and the position of the sliding seat (2) on the guide column (3) is locked.
4. The tool for aiding assembly of an asphalt concrete test specimen according to claim 1, wherein, The sliding seat (2) is provided with a through hole, and the guide column (3) is embedded in the through hole.
5. The tool for the assisted assembly of asphalt concrete test specimens according to any one of claims 1-4, characterized in that, The support (5) comprises a mounting portion (51), a supporting portion (52) and a contraction portion (53) connected in sequence, the mounting portion (51) is configured to mount the support (5) on the fixed seat (1) and the sliding seat (2), and a circular arc transition surface is arranged between the supporting portion (52) and the contraction portion (53).
6. The tool for use in the assembly of an asphalt concrete test specimen according to claim 1, wherein, The distance between the pair of guide columns (3) is 110mm-130mm.
7. The tool for use in the assembly of an asphalt concrete test specimen according to claim 1, wherein, The sliding seat (2) is provided with a handle (7).
8. The tool for aiding assembly of an asphalt concrete test specimen according to claim 1, wherein, The guide column (3) is connected with the fixed seat (1) through a fastener (8).