Slurry mold feeding device for Marshall test piece preparation

Abstract

The utility model discloses a device for feeding slurry into a mold during preparation of a Marshall test piece, which comprises a cylinder body, a slurry inlet is arranged above the cylinder body, a slurry outlet is arranged below the cylinder body, the slurry outlet is clamped on a Marshall test piece mold, and one side of the cylinder body is provided with a separation hole; the partition plate is hinged to the interior of the partition hole, the partition plate can be located in the barrel through the partition hole to divide the barrel into a storage area and a discharging area, or the partition plate is located outside the barrel through the partition hole to enable the storage area to communicate with the discharging area, and the storage area is used for storing slurry; a slurry outlet is formed below the discharging area, and the discharging area is used for allowing slurry to enter the Marshall test piece mold; and the temperature sensor is arranged on the inner wall of the barrel body of the material storage area. According to the utility model, the temperature of the slurry can be mastered in real time while the pouring speed is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of slurry perfusion, and particularly relates to a slurry feeding device for preparing Marshall specimens. Background Technique

[0002] At present, the Marshall experiment is to standardly compact the Marshall specimen under specified temperature, humidity and other conditions to conduct relevant research on the performance of asphalt pavement. Among them, the Marshall specimen is one of the most commonly used test pieces. Therefore, the quality of the Marshall specimen is very important for the experimental results. At present, when preparing the Marshall specimen, the asphalt mixture is weighed with tools such as a small steel basin and then poured into the Marshall specimen mold. This method will cause quality loss and heat dissipation of the asphalt mixture during the pouring process. Among them, the heat dissipation problem will have a serious impact on the compaction height and density of the Marshall specimen of the asphalt mixture, resulting in low test data and unable to provide accurate data for construction process control. In addition, the traditional temperature measurement method uses a glass thermometer to directly insert into the asphalt mixture. The temperature of this method rises slowly, and the liquid level in the glass thermometer will drop when reading the temperature, resulting in a smaller read data and unable to truly reflect the temperature of the asphalt mixture.

[0003] In view of this, how to design a device that can improve the pouring speed, reduce heat dissipation, and simultaneously be able to master the temperature of the mixture in real time is the technical problem to be solved by the utility model. Content of the Utility Model

[0004] The utility model provides a slurry feeding device for preparing Marshall specimens, which can improve the pouring speed and simultaneously master the temperature of the slurry in real time.

[0005] To achieve the above technical purpose, the utility model is realized by adopting the following technical solutions:

[0006] A slurry feeding device for preparing Marshall specimens includes:

[0007] A cylinder body, with a slurry inlet at the top, a slurry outlet at the bottom, the slurry outlet is clamped on the Marshall specimen mold, and a partition hole is opened on the side wall of the cylinder body;

[0008] A partition plate, which is hinged in the partition hole, and the partition plate can pass through the partition hole to be located inside the cylinder body to divide the cylinder body into a storage area and a feeding area, or the partition plate passes through the partition hole to be located outside the cylinder body to communicate the storage area and the feeding area. The storage area is used to store the slurry, the bottom of the feeding area is the slurry outlet, and the feeding area is used for the slurry to pass through and enter the Marshall specimen mold;

[0009] A temperature sensor, which is arranged on the inner wall of the cylinder body in the storage area.

[0010] In some embodiments of the present application, an introduction part is provided above the slurry inlet, and the introduction part is used to introduce the slurry into the interior of the cylinder.

[0011] In some embodiments of the present application, the introduction part includes a funnel-shaped opening member, and the smaller-diameter end of the funnel-shaped opening member is connected to the slurry inlet.

[0012] In some embodiments of the present application, a display screen is provided on the outer wall of the cylinder, and the display screen is connected to the temperature sensor.

[0013] In some embodiments of the present application, a stop part is provided below the partition hole on the cylinder, and the stop part is used to be clamped on the Marshall specimen mold.

[0014] In some embodiments of the present application, the stop part includes an annular boss provided along the circumferential edge of the outer wall of the cylinder.

[0015] In some embodiments of the present application, the end of the partition plate is hinged in the partition hole through a hinge, and the diameter of the partition plate is greater than or equal to the inner wall diameter of the cylinder.

[0016] In some embodiments of the present application, a handle is further provided at the end of the partition plate.

[0017] In some embodiments of the present application, a handle is provided on the outer wall of the cylinder.

[0018] In some embodiments of the present application, the size of the cylinder is adapted to the size of the Marshall specimen mold.

[0019] Compared with the prior art, the advantages and positive effects of the present utility model are as follows: By opening a partition hole on the side of the cylinder and hinging a partition plate in the partition hole, the partition plate can be located inside and outside the cylinder respectively through the partition hole. When the partition plate is located inside the cylinder, the interior of the cylinder is divided into a storage area and a blanking area. The slurry can be temporarily stored in the storage area, effectively avoiding the problems of quality loss and heat loss caused by multiple pouring; when the partition plate is located outside the cylinder, the storage area is communicated with the blanking area, and the slurry can fall into the Marshall specimen mold from the storage area via the blanking area at one time, improving the pouring speed; by providing a temperature sensor on the inner wall of the cylinder in the storage area, the temperature of the slurry in the storage area can be detected in real time, with fast and accurate readings. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the slurry inlet device for preparing Marshall specimens of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the partition plate located inside the cylinder in an embodiment of the slurry inlet device for preparing Marshall specimens of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the partition plate in an embodiment of the slurry inlet device for preparing Marshall specimens of the present invention;

[0024] Figure 4 It is an enlarged schematic diagram of the connection between the partition plate and the cylinder in an embodiment of the slurry inlet device for preparing Marshall specimens of the present invention.

[0025] Description of the reference numerals:

[0026] 100, cylinder; 101, slurry inlet; 102, slurry outlet; 200, partition plate; 210, partition hole; 220, hinge; 221, upper hinge; 222, pin shaft; 223, lower hinge; 201, protruding part; 300, display screen; 400, handle; 500, grip; 600, guiding part; 700, stopping part. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0028] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0032] As Figures 1 to 4 shown, in this embodiment, a slurry pouring device for preparing Marshall specimens is provided, which can improve the pouring speed while reducing the mass loss and heat dissipation of asphalt mixture during the pouring process.

[0033] The slurry pouring device for preparing Marshall specimens includes a cylinder body 100, a partition plate 200, and a temperature sensor. Specifically:

[0034] The cylinder body 100 is a cylinder without upper and lower bottom surfaces. The diameter of the cylinder is 99 mm. The top is the slurry inlet 101. In this embodiment, the slurry refers to asphalt mixture. The asphalt mixture enters the cylinder body 100 from the slurry inlet 101. The bottom of the cylinder body 100 is the slurry outlet 102. The slurry outlet 102 is clamped on the Marshall specimen mold. The asphalt mixture enters the Marshall specimen mold from the inside of the cylinder body 100 through the slurry outlet 102. A partition hole 210 is provided on the side wall of the cylinder body 100. The partition hole 210 is arranged along the circumferential direction of the cylinder body 100. In this embodiment, the length of the partition hole 210 is half of the circumference of the cylinder body 100. The partition hole 210 facilitates the setting of the partition plate 200 and the movement of the partition plate 200 within the partition hole 210. The height of the partition hole 210 is the same as the thickness of the partition plate 200. The cylinder body 100 is made of 1 mm steel. The steel material has high strength and can prevent corrosion by asphalt, and has a long service life.

[0035] The partition plate 200 is hinged within the partition hole 210. The partition plate 200 can rotate horizontally within the partition hole 210. The partition plate 200 can be located inside the cylinder body 100 through the partition hole 210 to divide the cylinder body 100 into a storage area and a feeding area, or the partition plate 200 can be located outside the cylinder body 100 through the partition hole 210 to connect the storage area and the feeding area. The storage area is located above the feeding area. The height of the storage area is greater than the height of the feeding area. In this embodiment, the height of the storage area is about 100 - 150 mm, that is, the height between the slurry inlet 101 and the partition hole 210 is about 100 - 150 mm, as Figure 2 shown by the height H1. The height of the feeding area is about 20 mm, that is, the height between the partition hole 210 and the slurry outlet 102 is about 20 mm, as Figure 2 shown by the height H2.

[0036] When the partition plate 200 rotates to be entirely inside the cylinder body 100, the storage area and the feeding area are two independent spaces. The storage area is used to temporarily store the poured asphalt mixture. When the partition plate 200 rotates to be outside the cylinder body 100, the storage area and the feeding area are the same connected space. Under the action of gravity, the asphalt mixture falls from the storage area through the slurry outlet 102 at the bottom of the feeding area into the Marshall specimen mold, realizing the overall vertical pouring of the asphalt mixture into the mold and preventing the segregation of the asphalt mixture during the pouring process.

[0037] The temperature sensor is arranged on the inner wall of the cylinder body 100 in the storage area (not shown in the figure). The temperature sensor is used to measure the temperature of the asphalt mixture stored in the storage area in real time. The temperature sensor adopts a high-sensitivity temperature sensor, which can detect the temperature more accurately.

[0038] During use, the slurry outlet 102 of this device is clamped above the Marshall specimen mold. Rotate the partition plate 200 so that the rotating plate is entirely inside the cylinder body 100, thereby separating the material storage area and the material discharging area. Pour the required weight of asphalt mixture from the slurry inlet 101. The asphalt mixture falls into the material storage area for storage. The temperature sensor measures the temperature of the asphalt mixture in the material storage area in real time. When the temperature of the asphalt mixture in the material storage area reaches the required value, rotate the partition plate 200 again so that the partition plate 200 is outside the cylinder body 100. The material storage area and the material discharging area are connected. The asphalt mixture vertically falls from the material storage area through the slurry outlet 102 at the bottom of the material discharging area into the Marshall specimen mold, completing the operation of pouring the asphalt mixture into the mold. Then separate the slurry outlet 102 of this device from the Marshall specimen mold. This device can be used repeatedly.

[0039] Above the slurry inlet 101, there is an introduction part 600. The introduction part 600 is used to introduce the asphalt mixture into the interior of the cylinder body 100. Since the diameter of the cylinder body 100 is 99 mm, which is relatively small, during the process of pouring the asphalt mixture, it may occur that the asphalt mixture spills outside the cylinder body 100, resulting in a loss of the quality of the asphalt mixture. Therefore, setting the introduction part 600 can effectively pour all the asphalt mixture into the interior of the cylinder body 100.

[0040] As Figure 1 、 Figure 2 shown in the figure, the introduction part 600 is a funnel-shaped opening part. The upper opening diameter of the funnel-shaped opening part is larger than the lower opening diameter, and the lower opening with a smaller diameter is connected to the slurry inlet 101. The structure of the funnel-shaped opening part is simple and convenient for installation. The funnel-shaped opening part and the slurry inlet 101 can be connected by welding. The welding method has good sealing performance, avoiding the asphalt mixture flowing out from the gap during pouring.

[0041] As Figure 1 shown in the figure, a display screen 300 is provided on the outer wall of the bucket body. The display screen 300 is connected to the temperature sensor by wire or wireless means. The temperature of the asphalt mixture detected by the temperature sensor can be simultaneously displayed on the display screen 300, facilitating the more intuitive reading of the real-time temperature of the asphalt mixture.

[0042] Below the partition hole 210 on the cylinder body 100, there is a stop part 700. The stop part 700 is used to be clamped on the Marshall specimen mold. During use, the stop part 700 can be directly clamped above the Marshall specimen mold to prevent this device from falling into the interior of the Marshall specimen mold, affecting the pouring of the asphalt mixture into the mold.

[0043] The stop part 700 is an annular boss disposed along the outer wall circumference of the cylinder body 100. The bottom of the annular boss contacts the upper part of the Marshall specimen mold, which can ensure the connection stability between this device and the Marshall specimen mold.

[0044] As shown Figure 4 in the figure, the end of the partition plate 200 is hinged in the partition hole 210 through a hinge 220. The hinge 220 includes an upper hinge 221, a lower hinge 223 and a pin shaft 222. The upper hinge 221 is connected to the end of the partition plate 200. In order to adapt to the shape of the cylinder 100 and ensure rotation, a protruding portion 201 is provided at the end of the partition plate 200. The protruding portion 201 and the upper hinge 221 are integrally cast. In this way, it can be ensured that when the partition plate 200 is located inside the cylinder 100, the cylinder 100 is divided into a material storage area and a blanking area without gaps, thereby preventing the asphalt mixture from flowing out through the gaps. The pin shaft 222 is fixedly connected below the upper hinge 221, and the lower hinge 223 is fixedly connected to the cylinder 100 at the end of the partition hole 210. The pin shaft 222 is rotatably connected to the lower hinge 223.

[0045] The diameter of the partition plate 200 is greater than or equal to the inner wall diameter of the cylinder 100. When the partition plate 200 is entirely located inside the cylinder 100, the inside of the cylinder 100 can be divided into an independent material storage area and a blanking area.

[0046] A handle 400 is provided at the end of the partition plate 200, and the handle 400 facilitates the operator to grasp and rotate the partition plate 200.

[0047] A handle 500 is provided on the outer wall of the cylinder 100, and the handle 500 facilitates the operator to move the cylinder 100.

[0048] The size of the cylinder 100 is adapted to the size of the Marshall specimen mold, so that the asphalt mixture can quickly fall into the Marshall specimen mold through the slurry outlet 102, improving the pouring speed.

[0049] The slurry pouring device for preparing Marshall specimens provided in this embodiment has a simple structure, reasonable design, high working efficiency, high reliability, and the metal material can be recycled and has a long service life.

[0050] In the description of this specification, the descriptions referring to terms such as "some embodiments", "examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. A slurry pouring device for preparing Marshall specimens, characterized in that, Comprising: A cylinder body, with a slurry inlet provided at its top, a slurry outlet provided at the bottom of the cylinder body, the slurry outlet being clamped on a Marshall specimen mold, and a partition hole being opened on the side wall of the cylinder body; A partition plate, which is hinged in the partition hole, and the partition plate can pass through the partition hole to be located inside the cylinder body to divide the cylinder body into a storage area and a blanking area, or the partition plate passes through the partition hole to be located outside the cylinder body to connect the storage area and the blanking area. The storage area is used for storing slurry, the bottom of the blanking area is the slurry outlet, and the blanking area is for the slurry to pass through and enter the Marshall specimen mold; A temperature sensor, which is provided on the inner wall of the cylinder body in the storage area.

2. The slurry feeding device for preparing Marshall specimens according to claim 1, characterized in that, Above the slurry inlet, there is an introduction part, and the introduction part is used for introducing slurry into the interior of the cylinder body.

3. The slurry feeding device for preparing Marshall specimens according to claim 2, characterized in that, The introduction part includes a funnel-shaped opening member, and the smaller-diameter end of the funnel-shaped opening member is connected to the slurry inlet.

4. The slurry feeding device for preparing Marshall specimens according to claim 1, characterized in that, A display screen is provided on the outer wall of the cylinder body, and the display screen is connected to the temperature sensor.

5. The slurry injection device for preparing Marshall specimens according to claim 1, characterized in that, Below the partition hole on the cylinder body, there is a stop part, and the stop part is used for clamping on the Marshall specimen mold.

6. The slurry feeding device for preparing Marshall specimens according to claim 5, characterized in that, The stop part includes an annular boss arranged along the peripheral edge of the outer wall of the cylinder body.

7. The slurry feeding device for preparing Marshall specimens according to claim 1, characterized in that, The end of the partition plate is hinged in the partition hole through a hinge, and the diameter of the partition plate is greater than or equal to the inner diameter of the cylinder body.

8. The slurry feeding device for use in preparing Marshall specimens according to claim 7, wherein A handle is further provided at the end of the partition plate.

9. The slurry feeding device for preparing Marshall specimens according to claim 1, characterized in that, A handle is provided on the outer wall of the cylinder body.

10. The slurry feeding device for preparing Marshall specimens according to claim 1, characterized in that, The size of the cylinder body is adapted to the size of the Marshall specimen mold.

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