Permeability test device for recycled aggregate concrete

Abstract

The utility model relates to the technical field of recycled aggregate concrete, in particular to a recycled aggregate concrete permeability test device which comprises a base, inner supporting plates are fixedly mounted at symmetrical positions of the top of the base, a sliding rod frame is fixedly mounted at the tops of the inner supporting plates, and a translation seat is arranged above the inner supporting plates. A first vertical sliding groove and a second vertical sliding groove are symmetrically formed in the top of the translation base, vertical supporting columns are slidably connected into the first vertical sliding groove, a fixing block is fixedly connected to the tops of the vertical supporting columns, a front bracket is fixedly installed on the side wall of the fixing block, and a fixed shaft is fixedly connected to the adjacent sides of the two vertical supporting columns. Compared with the prior art, the multi-plate multi-type detection device has the advantages that simultaneous multi-type detection of multiple plates is realized through the multiple groups of material receiving grooves, the rolling sleeves and the directional displacement grooves are matched for alternate feeding and discharging, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of recycled aggregate concrete technology, specifically a permeability testing device for recycled aggregate concrete. Background Technology

[0002] Recycled aggregate concrete is a new type of concrete made by crushing, screening, washing and other processes of waste concrete to obtain recycled aggregates that partially or completely replace natural aggregates, and then mixing them with cement, water and other admixtures in a certain proportion. It can effectively utilize a large amount of waste concrete, reduce the mining of natural aggregates and reduce the pollution of construction waste to the environment.

[0003] The Chinese patent application number 202321790196X describes a permeability testing device for recycled aggregate concrete. It calculates the permeability coefficient by injecting water into a sealed cylinder and measuring the corresponding values. The entire operation is relatively simple and convenient, and multiple sets of test samples can be prepared in advance, which can improve the efficiency of the test.

[0004] However, the aforementioned device can only test one sample at a time, resulting in low testing efficiency and requiring more time for batch testing. Furthermore, the process of changing samples lacks continuity, requiring manual operation of the sealing cylinder to move up and down, which is cumbersome. In addition, the patent does not have a sealing structure, which may pose a risk of liquid leakage during the test, affecting the accuracy of the test results.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a permeability testing device for recycled aggregate concrete to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A permeability testing device for recycled aggregate concrete includes a base, an inner support plate fixedly installed symmetrically on the top of the base, a sliding rod frame fixedly installed on the top of the inner support plate, a translation seat provided above the inner support plate, a vertical sliding groove one and a vertical sliding groove two symmetrically opened on the top of the translation seat, a vertical support column slidably connected in the vertical sliding groove one, a fixing block fixedly connected to the top of the vertical support column, and a front bracket fixedly installed on the side wall of the fixing block.

[0009] Furthermore, a fixed shaft is fixedly connected to one side of the two adjacent vertical support columns, and a roller sleeve is movably connected to the outer side of the fixed shaft through a bearing. A vertical limiting block is slidably connected inside the second vertical slide groove. A directional plate is fixedly installed at the midpoint of the top of the base and between the two inner support plates. The side wall of the directional plate is provided with a directional displacement groove that moves in conjunction with the roller sleeve. The translation seat is slidably connected to the slide rod frame through sliding holes symmetrically opened on the side wall.

[0010] Furthermore, guide rail plates are fixedly connected to both sides of the base, and a flat push block is slidably connected to the guide rail plate through an I-shaped slide rail set on its top. A rear bracket is fixedly connected to the side wall of the flat push block.

[0011] Furthermore, a frame plate is fixedly installed on one side of the top of the base. Two limiting posts are symmetrically fixed to the side wall of the frame plate near the inner support plate by a bracket. Opposing sliding seats are sleeved on the outside of the limiting posts. An upper cover and a lower cover are fixedly installed on the side walls of the two opposing sliding seats respectively.

[0012] Furthermore, the top of both the front bracket and the rear bracket is provided with multiple sets of receiving grooves, and the top and bottom of the front bracket and the rear bracket are also provided with sealing grooves.

[0013] The top of the upper cover and the bottom of the lower cover are both connected to a flow guide tube. A liquid collection tank is provided on the top of the base and directly below the flow guide tube. A liquid guide pipe is connected to the bottom of the liquid collection tank. A switch is installed at one end of the liquid guide pipe near the bottom of the liquid collection tank. Sealing strips that cooperate with the sealing groove are fixedly installed on the bottom of the upper cover and the top of the lower cover.

[0014] Furthermore, the side wall of the frame plate has two limiting grooves, a connecting block fixedly connected to the opposing sliding seat is provided on one side of the frame plate, a rotating rod is rotatably connected to the side wall of the frame plate, both ends of the rotating rod are rotatably connected to a connecting shaft, and the end of the connecting shaft away from the rotating rod is rotatably connected to the connecting block, and an electric push rod for driving the connecting block is fixedly installed on the side wall of the frame plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In use, this utility model has multiple sets of receiving slots in the front and rear brackets, which can simultaneously place recycled aggregate concrete slabs of different processes. It can test multiple types of concrete slabs at one time, which greatly improves the testing efficiency compared to the traditional method of testing only one concrete slab at a time. The alternating loading and unloading function achieved by the roller sleeve and the directional displacement groove eliminates the need for frequent manual handling of concrete slabs, reducing operation steps and waiting time, and further improving the overall testing efficiency.

[0017] 2. In use, the electric push rod, through the coordinated action of the connecting block, rotating rod, and connecting shaft, drives the upper and lower covers to move synchronously in opposite directions, ensuring a tight seal between the sealing strip and the sealing groove. This excellent sealing performance ensures that no liquid leaks during the water permeability test, guaranteeing the stability of the test environment and making the test results more accurate and reliable. Furthermore, during the alternating feeding process, the bottom of the concrete slab that has undergone the water permeability test must be wiped dry before conveying, effectively avoiding the influence of residual liquid on the concrete slab to be tested below, reducing test errors, and improving the accuracy and reliability of the test data. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings;

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the front bracket and rear bracket structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the sealing groove structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the sealing strip structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the liquid collection tank structure in this utility model;

[0024] Figure 6 This is a schematic diagram of the rotating rod structure in this utility model.

[0025] Reference numerals: 1. Base; 2. Slide rod frame; 3. Translation seat; 4. Vertical support column; 5. Fixing block; 6. Vertical limiting block; 7. Front bracket; 8. Roller sleeve; 9. Orientation displacement groove; 10. Guide rail plate; 11. Push block; 12. Rear bracket; 13. Limiting column; 14. Opposing sliding seat; 151. Upper cover; 152. Lower cover; 16. Sealing groove; 17. Flow guide tube; 18. Liquid collection tank; 19. Connecting block; 20. Rotating rod; 21. Electric push rod; 22. Sealing strip. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: A permeability testing device for recycled aggregate concrete includes a base 1. An inner support plate is fixedly installed symmetrically on the top of the base 1. A sliding rod frame 2 is fixedly installed on the top of the inner support plate. A translation seat 3 is provided above the inner support plate. Vertical sliding groove 1 and vertical sliding groove 2 are symmetrically opened on the top of the translation seat 3. A vertical support column 4 is slidably connected in the vertical sliding groove 1. A fixing block 5 is fixedly connected to the top of the vertical support column 4. A front bracket 7 is fixedly installed on the side wall of the fixing block 5. Multiple sets of material receiving grooves are opened on the top of both the front bracket 7 and the rear bracket 12. By setting multiple sets of material receiving grooves, recycled aggregate concrete slabs of different processes can be placed at the same time, and multiple types of concrete slabs can be tested at one time.

[0028] Two vertical support columns 4 are fixedly connected to a fixed shaft on one side of each other, and a roller sleeve 8 is movably connected to the outside of the fixed shaft through a bearing. A vertical limiting block 6 is slidably connected inside the vertical slide groove 2. A directional plate is fixedly installed at the top midpoint of the base 1 and between the two inner support plates. The side wall of the directional plate is provided with a directional displacement groove 9 that moves in cooperation with the roller sleeve 8. The directional displacement groove 9 is composed of three smooth grooves and two inclined grooves, and the two inclined grooves are connected to the beginning and end of the smooth grooves respectively. The translation seat 3 is slidably connected to the slide rod frame 2 through sliding holes symmetrically opened on the side wall.

[0029] Guide rail plates 10 are fixedly connected to both sides of the base 1. The guide rail plates 10 are slidably connected to the push block 11 via the I-shaped slide rail set on the top of the guide rail plate 10. The side wall of the push block 11 is fixedly connected to the rear bracket 12.

[0030] Example 2: A frame plate is fixedly installed on one side of the top of the base 1. Two limiting posts 13 are symmetrically fixed to the side wall of the frame plate near the inner support plate by a bracket. Opposing sliding seats 14 are sleeved on the outside of the limiting posts 13. The side walls of the two opposing sliding seats 14 are respectively fixedly installed with an upper cover 151 and a lower cover 152. Sealing grooves 16 are also provided at the top and bottom of the front bracket 7 and the rear bracket 12.

[0031] The top of the upper cover 151 and the bottom of the lower cover 152 are both connected to the guide tube 17. The base 1 is located on the top and directly below the guide tube 17, and the bottom of the liquid collection tank 18 is connected to the liquid guide pipe. A switch is installed at the end of the liquid guide pipe near the bottom of the liquid collection tank 18. The bottom of the upper cover 151 and the top of the lower cover 152 are fixedly installed with sealing strips 22 that cooperate with the sealing groove 16, so that the sealing strip 22 and the sealing groove 16 are tightly sealed. The good sealing performance ensures that the liquid will not leak during the water permeability test and ensures the stability of the test environment.

[0032] The side wall of the frame plate has two limiting grooves. One side of the frame plate is provided with a connecting block 19 that is fixedly connected to the opposing sliding seat 14. The connecting block 19 is slidably connected to the limiting groove. The side wall of the frame plate is rotatably connected with a rotating rod 20. Both ends of the rotating rod 20 are rotatably connected with a connecting shaft. The end of the connecting shaft away from the rotating rod 20 is rotatably connected to the connecting block 19. An electric push rod 21 for driving the connecting block 19 is fixedly installed on the side wall of the frame plate.

[0033] The working principle of this utility model, combining Embodiment 1 and Embodiment 2, is as follows:

[0034] Preparation: Place recycled aggregate concrete slabs of different thicknesses into multiple sets of receiving troughs in the front bracket 7 and the rear bracket 12 respectively. Check whether the components of the device are securely connected, whether the liquid collection tank 18 is empty, and whether the electric push rod 21, switches and other equipment can work normally.

[0035] Alternating loading and unloading: Pushing the fixed block 5 and driving the translation seat 3 to move through the vertical support column 4, the translation seat 3 moves outside the slide rod frame 2 through the sliding hole in the side wall. At the same time, the roller sleeve 8 under the front bracket 7 rolls in the directional displacement groove 9 of the directional plate, thereby guiding the front bracket 7 to move along a specific trajectory. When the roller sleeve 8 moves to the lowest position of the directional displacement groove 9, the concrete slab conveying recycled aggregate from the front bracket 7 passes under the rear bracket 12, thereby realizing alternating loading and unloading.

[0036] When the recycled aggregate concrete slab carried by the front bracket 7 or the rear bracket 12 moves to the midpoint of the distance between the two opposing sliding seats 14, the electric push rod 21 is activated and one of the connecting blocks 19 is pushed to move. The connecting block 19 drives the rotating rod 20 to rotate through the connecting shaft, which in turn drives the two opposing sliding seats 14 to move closer to each other along the limiting post 13. The opposing sliding seats 14 drive the upper cover 151 and the lower cover 152 to move synchronously until the sealing strips 22 at the bottom of the upper cover 151 and the top of the lower cover 152 are tightly fitted with the sealing grooves 16 on the front bracket 7 and the rear bracket 12 to form a sealed space.

[0037] Water permeability test: A certain amount of liquid is poured into the guide tube 17 at the top of the sealed top cover 151. The liquid is left to stand above the concrete slab of recycled aggregate, and then gradually permeates through the concrete slab and flows into the collection tank 18 below.

[0038] Results Acquisition: Record the initial volume of the liquid poured and the volume of the liquid in the collection tank 18 after the test. Calculate the permeability of the concrete slab by measuring the change in liquid volume before and after the test, and thus obtain the permeability test results.

[0039] After the test, open the switch on the liquid guide pipe at the bottom of the liquid collection tank 18 to drain the liquid in the liquid collection tank 18;

[0040] Subsequent processing: During the alternating feeding process, the bottom of the recycled aggregate concrete slab that has undergone the permeability test should be wiped dry before being conveyed to prevent residual liquid from affecting the concrete slab to be tested below. Repeat the above steps to conduct the permeability test on the next set of concrete slabs.

[0041] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A permeability testing device for recycled aggregate concrete, comprising a base (1), characterized in that, An inner support plate is fixedly installed at a symmetrical position on the top of the base (1). A slide bar frame (2) is fixedly installed on the top of the inner support plate. A translation seat (3) is provided above the inner support plate. A vertical slide groove one and a vertical slide groove two are symmetrically opened on the top of the translation seat (3). A vertical support column (4) is slidably connected in the vertical slide groove one. A fixing block (5) is fixedly connected to the top of the vertical support column (4). A front bracket (7) is fixedly installed on the side wall of the fixing block (5).

2. The permeability testing device for recycled aggregate concrete according to claim 1, characterized in that, Two vertical support columns (4) are fixedly connected to a fixed shaft on one side of each other, and a roller sleeve (8) is movably connected to the outside of the fixed shaft through a bearing. A vertical limiting block (6) is slidably connected inside the vertical slide groove. A directional plate is fixedly installed at the top midpoint of the base (1) and between the two inner support plates. The side wall of the directional plate is provided with a directional displacement groove (9) that moves in cooperation with the roller sleeve (8). The translation seat (3) is slidably connected to the slide rod frame (2) through sliding holes symmetrically opened on the side wall.

3. The permeability testing device for recycled aggregate concrete according to claim 1, characterized in that, The base (1) is fixedly connected to both sides of a guide rail plate (10). The guide rail plate (10) is slidably connected to a push block (11) via an I-shaped slide rail on its top. The push block (11) is fixedly connected to a rear bracket (12) on its side wall.

4. The permeability testing device for recycled aggregate concrete according to claim 1, characterized in that, A frame plate is fixedly installed on one side of the top of the base (1). Two limiting posts (13) are symmetrically fixed on the side wall of the frame plate near the inner support plate by a bracket. Opposing sliding seats (14) are sleeved on the outside of the limiting posts (13). The side walls of the two opposing sliding seats (14) are respectively fixedly installed with an upper cover (151) and a lower cover (152).

5. The permeability testing device for recycled aggregate concrete according to claim 4, characterized in that, The top of the front bracket (7) and the rear bracket (12) are provided with multiple sets of receiving grooves, and the top and bottom of the front bracket (7) and the rear bracket (12) are also provided with sealing grooves (16). The top of the upper cover (151) and the bottom of the lower cover (152) are both connected to a guide tube (17). A liquid collection tank (18) is provided on the top of the base (1) and directly below the guide tube (17). A liquid guide pipe is connected to the bottom of the liquid collection tank (18). A switch is installed at one end of the liquid guide pipe near the bottom of the liquid collection tank (18). A sealing strip (22) that cooperates with the sealing groove (16) is fixedly installed on the bottom of the upper cover (151) and the top of the lower cover (152).

6. The permeability testing device for recycled aggregate concrete according to claim 4, characterized in that, The side wall of the frame plate has two limiting grooves. One side of the frame plate is provided with a connecting block (19) that is fixedly connected to the opposing sliding seat (14). The side wall of the frame plate is rotatably connected with a rotating rod (20). Both ends of the rotating rod (20) are rotatably connected with a connecting shaft, and the end of the connecting shaft away from the rotating rod (20) is rotatably connected to the connecting block (19). The side wall of the frame plate is fixedly installed with an electric push rod (21) for driving the connecting block (19).

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