Cement soil impermeability sample manufacturing device

Abstract

The utility model discloses a cement soil impervious sample manufacturing device which comprises a bottom plate and a forming cylinder, the forming cylinder is arranged above the bottom plate, the bottom end of the forming cylinder is coaxially and fixedly connected with a connecting ring, the top of the bottom plate is fixedly connected with a plurality of studs according to the circumference, penetrating holes matched with the studs are formed in the connecting ring in a penetrating mode, and the studs penetrate through the penetrating holes. A connecting sleeve is fixedly connected to the side wall of the forming cylinder, a connecting rod is rotationally connected into the connecting sleeve, after the cement soil anti-permeability sample is solidified and formed, the nut on the stud is taken down, and through matched use of a limiting groove and a limiting rod, when the connecting arm is rotated, the top plate can be quickly located over the forming cylinder, so that the forming cylinder is prevented from being damaged; the screw rod is rotated through the rotating disc, the screw rod pushes the top plate to move downwards, the rotating disc is continuously rotated, and the forming cylinder moves upwards under the action of counter-acting force, so that the forming cylinder is separated from a formed sample, and the formed sample is conveniently separated from the forming cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical tests, and particularly relates to a device for manufacturing a cement soil impermeability specimen. Background Technique

[0002] In the foundation pit excavation project, when the groundwater depth is relatively shallow and the permeability coefficient of the soil layer is relatively large, a water-stop curtain can be set around the foundation pit with cement soil as the material. Therefore, it is necessary to understand the impermeability characteristics of cement soil in order to determine the best mixing ratio of cement soil, which requires conducting an impermeability test on cement soil. For this purpose, a device for manufacturing a cement soil impermeability specimen is needed to manufacture the cement soil impermeability specimen.

[0003] However, when the existing device for manufacturing a cement soil impermeability specimen is in use, the formed cement soil impermeability specimen will be in the formed mold, and it is inconvenient to take out the formed cement soil impermeability specimen. In view of the above problems, a device for manufacturing a cement soil impermeability specimen is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for manufacturing a cement soil impermeability specimen to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for manufacturing a cement soil impermeability specimen, including a bottom plate and a forming cylinder. The forming cylinder is arranged above the bottom plate. A connecting ring is fixedly connected coaxially at the bottom end of the forming cylinder. Multiple stud bolts are fixedly connected to the top of the bottom plate in a circumferential manner. Through holes adapted to the stud bolts are formed through the connecting ring. The stud bolts pass through the through holes, and nuts are threadedly connected above the through holes on the stud bolts. A connecting sleeve is fixedly connected to the side wall of the forming cylinder. A connecting rod is rotatably connected in the connecting sleeve. A connecting arm is fixedly connected to the top of the connecting rod. A threaded sleeve is fixedly connected to the end of the connecting arm. A screw rod is threadedly connected in the threaded sleeve. The bottom end of the screw rod is rotatably connected with a top plate below the threaded sleeve. The top end of the screw rod is fixedly connected with a turntable.

[0007] As a further scheme of the utility model: A semi-circular limiting groove is formed at the top of the connecting sleeve, and a limiting rod is fixedly connected to the side wall of the connecting rod in the limiting groove.

[0008] As a further scheme of the utility model: When the limiting rod is at one end of the limiting groove close to the forming cylinder, the top plate is directly above the forming cylinder and is coaxial with the forming cylinder.

[0009] As a further scheme of the utility model: Two handles are symmetrically and fixedly connected to the upper parts of the front and rear side walls of the forming cylinder.

[0010] As a further scheme of the utility model: Marking lines are arranged on the inner wall of the forming cylinder.

[0011] As a further solution of the utility model: a rubber ring is arranged between the top of the bottom plate and the connecting ring, and the perforation extends through the rubber ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. After the cement soil impermeability sample is solidified and formed, the nut on the stud is removed. By using the cooperation of the limit groove and the limit rod, when the connecting arm is rotated, the top plate can be quickly positioned directly above the forming cylinder. By rotating the turntable to rotate the screw rod, the screw rod pushes the top plate downward. By continuously rotating the turntable, under the action of the reaction force, the forming cylinder moves upward, so that the forming cylinder is separated from the formed sample, which is convenient for separating the formed sample from the forming cylinder.

[0014] 2. By arranging a marking line on the inner wall of the forming cylinder, the utility model avoids excessive addition of raw materials by the staff producing the cement soil impermeability sample, which is beneficial to the uniformity of the sample. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a device for manufacturing a cement soil impermeability sample.

[0016] Figure 2 It is another state schematic diagram of a device for manufacturing a cement soil impermeability sample.

[0017] Figure 3 It is Figure 2 The partial enlarged view at A in

[0018] Figure 4 It is Figure 2 The partial enlarged view at B in

[0019] In the figure: 1, bottom plate; 2, forming cylinder; 3, connecting sleeve; 4, connecting rod; 5, connecting arm; 6, threaded sleeve; 7, screw rod; 8, turntable; 9, top plate; 10, handle; 11, connecting ring; 12, rubber ring; 13, limit groove; 14, limit rod; 15, marking line; 16, stud; 17, perforation; 18, nut. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4, in the embodiment of the present utility model, a device for manufacturing a cement soil impermeability specimen includes a bottom plate 1 and a forming cylinder 2. The forming cylinder 2 is arranged above the bottom plate 1. A connecting ring 11 is coaxially and fixedly connected to the bottom end of the forming cylinder 2. A plurality of stud bolts 16 are fixedly connected to the top of the bottom plate 1 in a circumferential manner. A perforation 17 adapted to the stud bolts 16 is formed through the connecting ring 11. The stud bolts 16 penetrate through the perforation 17, and a nut 18 is threadedly connected above the perforation 17 on the stud bolts 16. A connecting sleeve 3 is fixedly connected to the side wall of the forming cylinder 2. A connecting rod 4 is rotatably connected in the connecting sleeve 3. A connecting arm 5 is fixedly connected to the top of the connecting rod 4. A threaded sleeve 6 is fixedly connected to the end of the connecting arm 5. A screw rod 7 is threadedly connected in the threaded sleeve 6. The bottom end of the screw rod 7 is rotatably connected to a top plate 9 below the threaded sleeve 6. The top end of the screw rod 7 is fixedly connected to a turntable 8.

[0022] During use, after the manufactured cement soil impermeability specimen solidifies and takes shape, remove the nut 18 on the stud bolt 16. By rotating the connecting arm 5, the top plate 9 is positioned directly above the forming cylinder 2. Rotate the screw rod 7 through the turntable 8. The screw rod 7 pushes the top plate 9 downward. Continuously rotate the turntable 8. Under the action of the reaction force, the forming cylinder 2 moves upward, separating the forming cylinder 2 from the formed specimen, facilitating the separation of the formed specimen from the forming cylinder 2.

[0023] A semi-circular limiting groove 13 is formed at the top of the connecting sleeve 3. A limiting rod 14 is fixedly connected to the side wall of the connecting rod 4 in the limiting groove 13. When the limiting rod 14 is at the end of the limiting groove 13 close to the forming cylinder 2, the top plate 9 is positioned directly above the forming cylinder 2, and the top plate 9 is coaxial with the forming cylinder 2. Through the cooperation of the limiting groove 13 and the limiting rod 14, when rotating the connecting arm 5, the top plate 9 can be quickly positioned directly above the forming cylinder 2.

[0024] Two handles 10 are symmetrically and fixedly connected to the upper parts of the front and rear side walls of the forming cylinder 2. Through the two handles 10 provided, it is convenient to carry the forming cylinder 2.

[0025] A marking line 15 is arranged on the inner wall of the forming cylinder 2. By arranging the marking line 15 on the inner wall of the forming cylinder 2, it can prevent the staff manufacturing the cement soil impermeability specimen from adding excessive raw materials, which is beneficial to the uniformity of the specimens.

[0026] A rubber ring 12 is arranged between the top of the bottom plate 1 and the connecting ring 11. The perforation 17 extends through the rubber ring 12. By arranging the rubber ring 12 between the bottom plate 1 and the connecting ring 11, the sealing performance between the bottom plate 1 and the connecting ring 11 is increased.

[0027] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for fabricating a cement-soil impermeability specimen, comprising a bottom plate (1) and a forming cylinder (2), characterized in that: The forming cylinder (2) is arranged above the bottom plate (1). A connecting ring (11) is fixedly connected coaxially to the bottom end of the forming cylinder (2). A plurality of stud bolts (16) are fixedly connected to the top of the bottom plate (1) in a circumferential manner. A perforation (17) adapted to the stud bolt (16) is formed through the connecting ring (11). The stud bolt (16) passes through the perforation (17), and a nut (18) is threadedly connected above the perforation (17) on the stud bolt (16). A connecting sleeve (3) is fixedly connected to the side wall of the forming cylinder (2). A connecting rod (4) is rotatably connected in the connecting sleeve (3). A connecting arm (5) is fixedly connected to the top of the connecting rod (4). A threaded sleeve (6) is fixedly connected to the end of the connecting arm (5). A screw rod (7) is threadedly connected in the threaded sleeve (6). The bottom end of the screw rod (7) is rotatably connected to a top plate (9) below the threaded sleeve (6). The top end of the screw rod (7) is fixedly connected to a turntable (8).

2. The cement soil impermeability sample manufacturing device according to claim 1, wherein: A semi-circular limiting groove (13) is formed at the top of the connecting sleeve (3). A limiting rod (14) is fixedly connected to the side wall of the connecting rod (4) in the limiting groove (13).

3. A device for fabricating a cement soil impermeability test sample according to claim 2, wherein: When the limiting rod (14) is at the end of the limiting groove (13) close to the forming cylinder (2), the top plate (9) is directly above the forming cylinder (2), and the top plate (9) is coaxial with the forming cylinder (2).

4. A device for fabricating a cement-soil impermeability specimen according to claim 1, characterized in that: Two handles (10) are symmetrically and fixedly connected to the upper parts of the front and rear side walls of the forming cylinder (2).

5. The cement soil impermeability specimen manufacturing device according to claim 1, wherein: A marking line (15) is arranged on the inner wall of the forming cylinder (2).

6. The apparatus for fabricating a cement soil impermeability specimen according to claim 1, wherein: A rubber ring (12) is arranged between the top of the bottom plate (1) and the connecting ring (11). The perforation (17) extends through the rubber ring (12).

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