An experimental apparatus for removing the outer hoop of a three-lobed membrane or a split circular membrane.

Abstract

An experimental device for removing the external hoop of a three-valve membrane or a split circular membrane comprises a handle, a rotatable bone chopper, a fixed bone chopper, an upper opening collar, and a lower collar. The first handle is connected to the lower collar through the rotatable bone chopper, and the second handle is connected to the upper opening collar through the fixed bone chopper, and the rotatable bone chopper is connected to the fixed bone chopper through a rotating shaft. The upper opening collar is connected to a Y-shaped rod, and an opening is arranged on the opposite side of the upper opening collar connected to the Y-shaped rod, and the central angle corresponding to the opening is 60 degrees. The present invention provides an experimental device for removing the external hoop of a three-valve membrane or a split circular membrane, and the experimental device utilizes the transmission of force to achieve labor-saving and stable removal of the external hoop of a three-valve membrane or a split circular membrane by rotating a long force arm.

Description

Technical Field

[0001] The invention belongs to the technical field of geotechnical engineering test devices, in particular to an experimental device for removing the outer hoop of a three-valve membrane or a split circular membrane. Background Art

[0002] In order to obtain the shear strength of soil samples under different confining pressures, it is usually necessary to conduct triaxial compression and other experiments, which involve the use of three-valve membranes or split circular membranes. When applying the hoop, in order to fix the three-valve membrane or split circular membrane, the hoop is often inserted too tightly and difficult to remove. In the process of forcibly removing the hoop by knocking the hoop with other instruments, the valves of the three-valve membrane or split circular membrane are misaligned, and in severe cases, the soil sample is damaged. The operation of taking it out is both time-consuming and laborious. Summary of the invention

[0003] In order to overcome the above defects and shortcomings, the present invention provides an experimental device for removing the external hoop of a three-valve membrane or a split circular membrane. The experimental device utilizes force transmission to rotate a long lever arm to achieve an effortless and smooth removal of the external hoop of a three-valve membrane or a split circular membrane.

[0004] The technical solution adopted by the present invention is:

[0005] An experimental device for removing the outer hoop of a three-valve membrane or a split circular membrane comprises a handle, a rotatable bone chopper, a fixed bone chopper, an upper opening collar, and a lower collar. The first handle is connected to the lower collar through the rotatable bone chopper, the second handle is connected to the upper opening collar through the fixed bone chopper, and the rotatable bone chopper is connected to the fixed bone chopper through a rotating shaft.

[0006] The upper opening collar is connected to the Y-shaped rod, and an opening is arranged on the opposite side of the upper opening collar connected to the Y-shaped rod, and the central angle corresponding to the opening is 60 degrees.

[0007] Support rings are symmetrically arranged on both sides of the lower collar, and the lower collar is fixedly connected to the support rings.

[0008] Four rotating shaft rods are symmetrically arranged at the bottom of the lower ring, and the hook is connected to the rotating shaft rods through a hollow cylindrical ring, and the hook can rotate with the rotation of the hollow cylindrical ring.

[0009] The upper and lower diameters of the lower sleeve ring are slightly larger than the diameters of the outer hoop of the three-valve membrane and the split circular membrane.

[0010] The first circular vial bubble and the second circular vial bubble are respectively arranged on the Y-shaped rod and the supporting ring.

[0011] The ends of the Y-shaped rod and the supporting ring are respectively provided with a first bolt and a second bolt.

[0012] The rotating shaft comprises a large round rod and a small round rod, the large round rod is connected to the small round rod, the fixed bone guillotine is fixedly connected to the large round rod, and the rotatable bone guillotine can rotate freely on the small round rod.

[0013] The upper opening ring and the lower ring both have a small upper diameter and a large lower diameter.

[0014] The present invention provides an experimental device for removing the outer hoop of a three-valve membrane or a split circular membrane, which has the following beneficial effects:

[0015] 1. The present invention is a new product with a simple structure and low production cost. The required materials are easy to buy on the market, the assembly is simple, and the experimental operation is relatively convenient.

[0016] 2. The present invention can be applied to the use of outer hoops of three-valve membranes or split circular membranes of various sizes, thereby increasing the utilization rate of the product.

[0017] 3. The circular level bubble set on the Y-shaped rod and the support ring avoids the problem of partial compression of the hoop due to eccentricity during use.

[0018] 4. The setting of hook and bone chopper makes the use process more labor-saving and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the upper opening collar of the present invention.

[0022] Figure 3 It is a schematic diagram of the lower sleeve structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the rotating shaft structure of the present invention.

[0024] In the figure: 1—first handle; 1'—second handle; 2—rotatable bone chopper; 3—fixed bone chopper; 4—upper opening ring; 5—lower ring; 6—hollow cylindrical ring; 7—hook; 8—rotating shaft rod; 9—first circular vial bubble; 9'—second circular vial bubble; 10—support ring; 11—rotating shaft; 401—Y-shaped rod; 402—first bolt; 402'—second bolt; 1101—nut; 1102—large round rod; 1103—small round rod. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4As shown, an experimental device for removing the outer hoop of a three-valve membrane or a split circular membrane comprises a handle, a rotatable bone chopper 2, a fixed bone chopper 3, an upper opening collar 4, and a lower collar 5. The first handle 1 is connected to the lower collar 5 through the rotatable bone chopper 2, the second handle 1' is connected to the upper opening collar 4 through the fixed bone chopper 3, and the rotatable bone chopper 2 is connected to the fixed bone chopper 3 through a rotating shaft 11. The experimental device utilizes the transmission of force and achieves the effect of lifting the hoop with less effort by rotating the long lever arm.

[0026] The upper opening collar 4 is connected to the Y-shaped rod 401, and an opening is arranged on the opposite side of the upper opening collar 4 connected to the Y-shaped rod 401, and the central angle of the opening is 60 degrees. This saves materials, and can achieve the effect of being attached to the outside of the three-valve membrane or the split circular membrane, and is more convenient for fine adjustment during use.

[0027] The lower collar 5 is symmetrically provided with support rings 10 on both sides, and the lower collar 5 is fixedly connected to the support rings 10. Its function is to be able to smoothly lift the hoop outside the three-valve membrane or the split circular membrane to prevent the phenomenon of different heights on both sides during the lifting process.

[0028] The bottom of the lower collar 5 is symmetrically provided with four rotating shaft rods 8, and the hook 7 is connected to the rotating shaft rods 8 through the hollow cylindrical ring 6, and the hook 7 can rotate with the rotation of the hollow cylindrical ring 6. By rotating the hook 7, the lower collar 5 is connected to the hoop outside the three-valve membrane or the split circular membrane, which is easy to operate and labor-saving.

[0029] The upper and lower diameters of the lower collar 5 are slightly larger than the diameters of the outer hoop of the three-valve membrane or the split circular membrane. Its function is to prevent the lower collar 5 from squeezing the three-valve membrane or the split circular membrane wall when the handle is tightly grasped and the rotatable bone chopper 2 is rotated to drive the lower collar 5 to produce vertical displacement in a small range.

[0030] The first circular vial 9 and the second circular vial 9' are respectively arranged on the Y-shaped rod 401 and the support ring 10, so as to facilitate the leveling of the instrument before use and avoid the occurrence of local pressure.

[0031] The ends of the Y-shaped rod 401 and the support ring 10 are respectively provided with a first bolt 402 and a second bolt 402'. The upper opening ring 4 and the lower ring 5 of corresponding sizes can be replaced according to the size of the three-valve membrane or the split circular membrane to improve the utilization rate of the instrument.

[0032] The rotating shaft 11 includes a large round rod 1102 and a small round rod 1103. The large round rod 1102 is connected to the small round rod 1103. The fixed bone chopper 3 is fixedly connected to the large round rod 1102, and the rotatable bone chopper 2 can rotate freely on the small round rod 1103. The fixed bone chopper 3 is fixed, and the free rotation of the rotatable bone chopper 2 makes the lifting process easy to achieve, saving time and effort.

[0033] The upper opening collar 4 and the lower collar 5 are both small in upper diameter and large in lower diameter, so as to better fit the outer wall of the three-valve membrane or the split circular membrane.

[0034] A method for removing the external hoop of a three-valve membrane or a split circular membrane comprises the following steps:

[0035] Step 1: Put the upper opening collar 4 and the lower collar 5 on the outside along the three-valve membrane or the split circular membrane from top to bottom, so that the upper opening collar 4 just fits and contacts the three-valve membrane or the split circular membrane, and rotate the hook 7 and the hollow cylindrical ring 6 to make the hook 7 hook the bottom of the three-valve membrane or the split circular membrane hoop;

[0036] Step 2: Observe the circular vial bubble, and make fine adjustments to the upper opening ring 4 and the lower ring 5 left and right, front and back, and up and down to center the circular vial bubble;

[0037] Step 3: Keep the second handle 1' connected to the fixed bone chopper 3 still, hold the first handle 1 connected to the rotatable bone chopper 2 tightly, rotate the rotatable bone chopper 2 around the rotation axis 11, gently lift the hoop outside the three-valve membrane or the split circular membrane, and move it out from bottom to top along the three-valve membrane or the split circular membrane.

Claims

1. An experimental device for removing the outer hoop of a three-valve membrane or a split circular membrane, comprising a handle, a rotatable bone chopper (2), a fixed bone chopper (3), an upper opening ring (4), and a lower ring (5); characterized in that: The first handle (1) is connected to the lower ring (5) via a rotatable bone chopper (2), and the second handle (1') is connected to the upper open ring (4) via a fixed bone chopper (3), wherein the rotatable bone chopper (2) is connected to the fixed bone chopper (3) via a rotating shaft (11); The upper open collar (4) is connected to the Y-shaped rod (401), and an opening is provided on the opposite side of the upper open collar (4) connected to the Y-shaped rod (401), and the central angle corresponding to the opening is 60 degrees; Support rings (10) are symmetrically provided on both sides of the lower collar (5), and the lower collar (5) is fixedly connected to the support rings (10); The bottom of the lower ring (5) is symmetrically provided with four rotating shaft rods (8), the hook (7) is connected to the rotating shaft rods (8) via a hollow cylindrical ring (6), and the hook (7) can rotate along with the rotation of the hollow cylindrical ring (6); The upper and lower diameters of the lower collar (5) are slightly larger than the diameters of the outer hoop of the three-valve membrane and the split circular membrane; The upper opening ring (4) and the lower ring (5) both have a small upper diameter and a large lower diameter; The rotating shaft (11) comprises a large round rod (1102) and a small round rod (1103); the large round rod (1102) is connected to the small round rod (1103); the fixed bone chopper (3) is fixedly connected to the large round rod (1102); and the rotatable bone chopper (2) can freely rotate on the small round rod (1103).

2. An experimental device for removing the outer hoop of a three-valve membrane or a split circular membrane according to claim 1, characterized in that: A first circular vial (9) and a second circular vial (9') are respectively arranged on the Y-shaped rod (401) and the support ring (10).

3. An experimental device for removing the outer hoop of a three-valve membrane or a split circular membrane according to claim 1, characterized in that: A first bolt (402) and a second bolt (402') are respectively disposed at the ends of the Y-shaped rod (401) and the support ring (10).

4. A method for removing the external hoop of a three-valve membrane or a split circular membrane using any one of the experimental devices described in claims 1 to 3, characterized in that The following steps are involved: Step 1: Put the upper opening ring (4) and the lower ring (5) on the outside along the three-valve membrane or the split circular membrane from top to bottom, so that the upper opening ring (4) just fits and contacts the three-valve membrane or the split circular membrane, and rotate the hook (7) and the hollow cylindrical ring (6) so that the hook (7) hooks the bottom of the three-valve membrane or the split circular membrane hoop; Step 2: Observe the circular vial and make fine adjustments to the upper opening ring (4) and the lower ring (5) left and right, front and back, and up and down to center the circular vial; Step 3: Keep the second handle (1') connected to the fixed bone chopper (3) still, hold the first handle (1) connected to the rotatable bone chopper (2), rotate the rotatable bone chopper (2) around the rotation axis (11), gently lift the hoop outside the three-valve membrane or the split circular membrane, and move it out from bottom to top along the three-valve membrane or the split circular membrane.

Images