Free expansion ratio measuring equipment

Abstract

The utility model relates to the field of free expansion rate measurement and discloses free expansion rate measurement equipment which comprises an equipment support, a soil measuring cup is placed on one side of the upper surface of the equipment support, a funnel is arranged above the soil measuring cup, a fixing frame is fixedly installed on the edge of one side of the upper surface of the equipment support, and collecting frames are symmetrically and rotationally installed on the edge of the top end of the fixing frame. A collecting groove is formed in the middle of the top end of the collecting frame, a soil scraping assembly is further arranged in the collecting groove, a hinge shaft at the bottom end of the collecting frame extends below the fixing frame to be provided with driven gears, and the bottom end of each driven gear is fixedly connected with a driving gear. Excess soil samples in the soil measuring cup can be scraped through the scraping plate in the soil scraping assembly, the collecting groove of the collecting frame collects the scraped soil samples, and the soil samples are prevented from being scattered and polluting the environment; the gear is matched with the rack plate, the rack plate is moved to drive the collecting frame to rotate, the collecting position is conveniently adjusted, and operation is convenient; the limiting mechanism fixes the rack plate through limiting bolts, it is ensured that the position of the collecting frame is stable, and the use reliability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of free expansion rate determination, and in particular to a free expansion rate determination device. BACKGROUND

[0002] The free expansion rate determination device is an instrument for determining the free expansion characteristics of a substance under certain conditions, and is widely used in the field of geotechnical engineering. For example, in the determination of the free expansion rate of clay, the device determines the expansion characteristics of unstructured loose soil in water by measuring the difference between the free bulk volume of loose dried soil samples in water and air and the free bulk volume in air (expressed as a percentage).

[0003] In the existing determination process, there are certain deficiencies in the process of filling the soil cup with soil. After filling the soil cup with soil using a neckless funnel, the excess soil sample is scraped off the cup mouth with a flat knife. In this process, the scraped soil sample is easily scattered around the experimental equipment, not only polluting the laboratory table and other environment, increasing the cleaning workload, but also causing safety hazards if the soil sample contains harmful substances. In addition, if the scattered soil sample is mixed with other experimental equipment or reagents, it will interfere with the accuracy of other experiments and affect the reliability of the experimental results.

[0004] In view of the related technology in the above, the inventor believes that there is a defect that the scraped soil sample is scattered around the experimental equipment when filling the soil cup with soil in the free expansion rate determination, therefore, a free expansion rate determination device is proposed to solve the above problems. Content of the utility model

[0005] In order to solve the problem that the scraped soil sample is scattered around the experimental equipment when filling the soil cup with soil in the free expansion rate determination, the present application provides a free expansion rate determination device.

[0006] The free expansion rate determination device provided by the present application adopts the following technical scheme:

[0007] A free expansion rate determination device, comprising a device support, a soil measuring cup is placed on one side of the upper surface of the device support, a funnel is arranged above the soil measuring cup, a fixed frame is fixedly installed on one side of the edge of the upper surface of the device support, a collecting frame is symmetrically and rotatably installed on the top edge of the fixed frame, a collecting groove is formed in the top center of the collecting frame, a soil scraping assembly is further arranged in the collecting groove, a driven gear is installed below the fixed frame through a hinge shaft extending from the bottom end of the collecting frame, a driving gear is fixedly connected to the bottom end of each driven gear, a guide sliding groove is formed in one side of the inner wall of the fixed frame, a rack plate is movably installed in the guide sliding groove, and a limiting mechanism is arranged on one side of the fixed frame to limit and fix the rack plate.

[0008] Preferably, the soil scraping assembly comprises fixed guide rails fixedly installed at both side edges of the inner wall of the collection groove, the two fixed guide rails at the same end are butted with each other, the two movable blocks are movably installed inside the two fixed guide rails at the same side, and the scraper is fixedly installed between the two movable blocks and abuts against the upper surface of the soil measuring cup.

[0009] Preferably, the limiting mechanism comprises a through long groove, the through long groove is provided in the inner wall of the guide chute at the middle of one side, the connecting piece is fixedly connected to the middle of one side of the rack plate and extends into the inside of the through long groove, and the limiting bolt is threadedly connected to the outside of the through long groove and extends into the inside of the connecting piece.

[0010] Preferably, the two driven gears are close to and mesh with each other, the side edge of the rack plate is movably close to the side of the outer surface of the driving gear, and the driving gear and the rack plate are meshed with each other.

[0011] Preferably, the collection frame is provided with an arc-shaped groove at the middle of one end, the outer surface of the soil measuring cup is located in the arc-shaped groove, and the soil measuring cup and the arc-shaped groove are clamped with each other.

[0012] To sum up, the application has the following beneficial technical effects:

[0013] The excess soil sample of the soil measuring cup can be scraped by the scraper in the soil scraping assembly, the scraped soil sample is collected in the collection groove of the collection frame, the environment is prevented from being polluted by scattering, the gear and the rack plate are matched, the collection frame is driven to rotate by moving the rack plate, the collection position is facilitated to be adjusted, and the operation is convenient, the limiting mechanism fixes the rack plate by the limiting bolt, the position of the collection frame is ensured to be stable, and the use reliability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the application embodiment;

[0015] Figure 2 is a schematic diagram of the structure of the collection frame in the application embodiment;

[0016] Figure 3 is a schematic diagram of the structure in the application embodiment;

[0017] Figure 4 is a schematic diagram of the structure of the connecting piece in the application embodiment;

[0018] Mark 1, equipment support; 2, soil measuring cup; 3, funnel; 4, fixed frame; 5, collection frame; 6, collection groove; 7, driven gear; 8, driving gear; 9, guide chute; 10, rack plate; 11, through long groove; 12, connecting piece; 13, limiting bolt; 14, fixed guide rail; 15, movable block; 16, scraper. DETAILED DESCRIPTION

[0019] The following description will be made in conjunction with the accompanying drawings Figures 1-4 The application is further described in detail.

[0020] The application discloses a free expansion rate measuring device. Referring to Figures 1-4 A free expansion rate measuring device comprises a device support 1, a soil measuring cup 2 is placed on one side of the upper surface of the device support 1, a funnel 3 is arranged above the soil measuring cup 2, a fixing frame 4 is fixedly installed on the side edge of the upper surface of the device support 1, a collecting frame 5 is symmetrically and rotatably installed at the top edge of the fixing frame 4, an arc-shaped groove is formed in the middle of one end of the collecting frame 5, the outer surface of the soil measuring cup 2 is located inside the arc-shaped groove, the soil measuring cup 2 and the arc-shaped groove are clamped with each other, a collecting groove 6 is formed in the middle of the top end of the collecting frame 5, a soil scraping assembly is further arranged in the collecting groove 6, a driven gear 7 is installed below the fixing frame 4 through a hinge shaft at the bottom end of the collecting frame 5, a driving gear 8 is fixedly connected to the bottom end of each driven gear 7, a guide sliding groove 9 is formed in one side of the inner wall of the fixing frame 4, a rack plate 10 is movably installed in the guide sliding groove 9, the two driven gears 7 are close to each other and meshed, the side edge of one side of the rack plate 10 is movably close to the outer surface of one side of the driving gear 8, the driving gear 8 and the rack plate 10 are meshed, and a limiting mechanism is arranged on one side of the fixing frame 4 and used for limiting and fixing the rack plate 10.

[0021] By making the rack plate 10 move along the guide sliding groove 9 and mesh with the driving gear 8, the driving gear 8 and the driven gear 7 are driven to rotate, so that the collecting frame 5 is rotated above the soil measuring cup 2; the arc-shaped groove of the collecting frame 5 is clamped and positioned with the soil measuring cup 2, so that the collecting groove 6 collects the excess soil samples falling in the soil measuring cup 2.

[0022] Referring to Figure 2 and Figure 4 The soil scraping assembly comprises fixed guide rails 14, the fixed guide rails 14 are fixedly installed at the side edges of the inner walls of the collecting groove 6, the two fixed guide rails 14 at the same end are abutted with each other, movable blocks 15 are movably installed in the two fixed guide rails 14 at the same side, a scraper 16 is fixedly installed between the two movable blocks 15, and the lower bottom surface of the scraper 16 is abutted with the upper surface of the soil measuring cup 2.

[0023] By the scraper 16 of the soil scraping assembly, the excess soil samples of the soil measuring cup 2 are scraped, the soil samples fall into the collecting groove 6, and at the same time, the movable block 15 is driven to move along the fixed guide rail 14 by the scraper 16, so as to guide and support the movable scraper 16, and keep the scraper 16 in a stable moving state.

[0024] Referring to Figure 1 and Figure 4The limiting mechanism comprises a through long slot 11, the through long slot 11 is throughly arranged in the inner wall of the guide sliding groove 9 at the middle of one side, the middle of one side of the rack plate 10 extends to the inside of the through long slot 11 and is fixedly connected with a connecting piece 12, the outer surface of the through long slot 11 extends to the inside of the connecting piece 12 and is threadedly connected with a limiting bolt 13.

[0025] By driving the connecting piece 12 along the through long slot 11, the rack plate 10 is adjusted to the position, the limiting bolt 13 is abutted against the outer surface of the fixed frame 4 and extends to the inside of the connecting piece 12, so that the limiting bolt 13 fixes the rack plate 10 and guarantees the stable position of the collecting frame 5.

[0026] The working principle of the free expansion rate measuring device is as follows: when the device works, the rack plate 10 moves in the guide sliding groove 9 and is engaged with the driving gear 8, so as to drive the driving gear 8 and the driven gear 7 to rotate, and the collecting frame 5 is rotated to the upper side of the soil measuring cup 2; the arc-shaped groove of the collecting frame 5 is positioned by being clamped with the soil measuring cup 2, the scraper 16 of the soil scraping assembly scrapes the excess soil sample of the soil measuring cup 2, and the soil sample falls into the collecting groove 6; the limiting mechanism fixes the rack plate 10 through the limiting bolt 13 and guarantees the stable position of the collecting frame 5. This process realizes the scraping and collecting of the soil sample, avoids the scattering and pollution of the soil sample, and improves the environmental cleanness and experimental accuracy of the free expansion rate measurement.

[0027] Finally, it should be pointed out that: first, in the description of the application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0028] Secondly: the utility model discloses the embodiment of the drawings only relates to the structure involved in the embodiment of the disclosure, and other structures can refer to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0029] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0030] The above are the preferred embodiments of the application, and are not used to limit the protection scope of the application, so: any equivalent change made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A free expansion rate measuring device, comprising a device support (1), a soil measuring cup (2) is placed on the upper surface of the device support (1), and a funnel (3) is arranged above the soil measuring cup (2), characterized in that: The equipment support (1) upper surface one side edge part is fixedly installed with a fixed frame (4), the fixed frame (4) top end edge part is symmetrically rotatably installed with a collection frame (5), the collection frame (5) top end middle part is provided with a collection groove (6), the collection groove (6) inside is further provided with a soil scraping assembly, the collection frame (5) bottom end hinged shaft extends to the fixed frame (4) below and is installed with a driven gear (7), a single driven gear (7) bottom end is fixedly connected with a driving gear (8), the fixed frame (4) inner wall one side is provided with a guide sliding slot (9), the guide sliding slot (9) inside is movably installed with a rack plate (10), the fixed frame (4) one side is provided with a limiting mechanism, for rack plate (10) limiting and fixing.

2. A free swell rate measuring apparatus according to claim 1, wherein: The soil scraping assembly includes a fixed guide rail (14), the fixed guide rail (14) is fixedly installed in the collection groove (6) inner wall both sides edge part, the same end two fixed guide rails (14) are butt-jointed with each other, the same side two fixed guide rails (14) inside movably installed with a movable block (15), two movable blocks (15) are fixedly installed with a scraper (16), the scraper (16) lower bottom surface and the soil measuring cup (2) upper surface are mutually abutted.

3. A free swell rate measuring apparatus according to claim 1, wherein: The limiting mechanism includes a through long slot (11), the through long slot (11) is throughly provided in the guide sliding slot (9) inner wall one side middle part, the rack plate (10) one side middle part extends to the through long slot (11) inside and is fixedly connected with a connecting piece (12), the through long slot (11) outer surface extends to the connecting piece (12) inside and is threadedly connected with a limiting bolt (13).

4. A free swell rate measuring apparatus according to claim 1, wherein: Two driven gears (7) are close to each other and mesh, the rack plate (10) one side edge part is movably close to the driving gear (8) outer surface one side, the driving gear (8) and rack plate (10) are meshed with each other.

5. A free swell rate measuring apparatus according to claim 1, wherein: The collection frame (5) one end middle part is provided with an arc-shaped recess, the soil measuring cup (2) outer surface top is located in the arc-shaped recess inside, the soil measuring cup (2) and arc-shaped recess are mutually clamped.

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