A water-permeable sleeve device for indoor testing

Abstract

The invention discloses a water-permeable sleeve device for indoor tests, which belongs to the technical field of geotechnical engineering test devices. A mounting groove is provided at one end of a metal mesh tube, an inner wall of the mounting groove is in contact with and connected to a sand tube, a reinforcing sleeve is sleeved at one end of the metal mesh tube, the other end of the metal mesh tube is in contact with and connected to a bottom plate, a surface of the bottom plate is in contact with and connected to a test water tank, one side of the test water tank is fixedly connected to a connecting sleeve, and an inner wall of the connecting sleeve is rotatably connected to a rotating rod. The water-permeable sleeve device for indoor tests is convenient for quickly fixing the installation position of the sand tube through the mounting groove provided on the metal mesh tube, and is convenient for assembly and later replacement of the sand tube. At the same time, the sand tube and one end of the metal mesh tube are reinforced by the reinforcing sleeve, thereby greatly improving the supporting strength of the water-permeable sleeve, and an extrusion plate with an adjustable position is provided, thereby facilitating the sleeve to be quickly fixed in the test water tank for testing, thereby greatly improving the test efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering test devices, and more specifically to a water-permeable sleeve device for indoor testing. Background Art

[0002] Studying the impact of groundwater infiltration through the surrounding rock of a disposal repository on the internal system of the repository is an important topic in the research work on geological disposal of high-level radioactive waste.

[0003] At present, in the test process of simulating permeable surrounding rock, a permeable sleeve device is needed, such as an indoor test permeable sleeve disclosed in announcement number CN215339431U. However, the connection strength between the metal mesh tube and the sand tube set in the permeable sleeve is not high. When the bentonite expands, the two ends of the sand tube may be deformed and damaged. In addition, during the test, it is necessary to fix it with bolts, which is cumbersome and time-consuming, reducing the test efficiency. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a water-permeable sleeve device for indoor testing. The water-permeable sleeve device for indoor testing has an installation groove set by a metal mesh tube, which is convenient for quickly fixing the installation position of the sand tube, facilitating the assembly and later replacement of the sand tube. At the same time, the sand tube and one end of the metal mesh tube are reinforced by a reinforcement sleeve, which greatly improves the supporting strength of the water-permeable sleeve. In addition, an extrusion plate with an adjustable position is set, which facilitates the rapid fixing of the sleeve in the test water tank for testing, thereby greatly improving the test efficiency.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A water-permeable sleeve device for indoor testing, comprising a metal mesh tube, one end of the metal mesh tube is provided with a mounting groove, the inner wall of the mounting groove is in contact with and connected to a sand tube, one end of the metal mesh tube is sleeved with a reinforcement sleeve, the other end of the metal mesh tube is in contact with and connected to a bottom plate, the surface of the bottom plate is in contact with and connected to a test water tank, one side of the test water tank is fixedly connected to a connecting sleeve, the inner wall of the connecting sleeve is rotatably connected to a rotating rod, one end of the rotating rod is slidably sleeved with an extrusion rod, the outer side of the extrusion rod is sleeved with an extrusion spring, and one end of the extrusion spring is in contact with and connected to an adjustment sleeve One end of the extrusion rod is detachably connected to an extrusion plate, and the surface of the extrusion plate is contact-connected to a top plate. The inner wall of the test water tank is provided with a test liquid. The water-permeable sleeve device for indoor testing is convenient for quickly fixing the installation position of the sand cylinder through the installation groove set by the metal mesh cylinder, and is convenient for the assembly and later replacement of the sand cylinder. At the same time, the sand cylinder and one end of the metal mesh cylinder are reinforced by the reinforcement sleeve, which greatly improves the supporting strength of the water-permeable sleeve, and the adjustable position of the extrusion plate facilitates the quick fixing of the sleeve in the test water tank for testing, which greatly improves the test efficiency.

[0007] Furthermore, a groove is provided on one surface of the reinforcement sleeve, and the inner wall of the groove is in contact and connected with the metal mesh cylinder and one end surface of the sand cylinder. The reinforcement sleeve is in the shape of a circular ring and is made of metal material. The reinforcement sleeve not only increases the connection strength between the metal mesh cylinder and one end of the sand cylinder, but also avoids wear by the top plate.

[0008] Furthermore, a surface of the bottom plate and the top plate are both provided with positioning grooves, and the inner walls of the two positioning grooves are respectively in contact and connected with the end faces of the metal mesh tube and the reinforcement sleeve. The positioning grooves are in the shape of a circular ring. The two positioning grooves provided on the bottom plate and the top plate can quickly fix the two end positions of the metal mesh tube, thereby improving the assembly efficiency of the permeable sleeve device.

[0009] Furthermore, one end of the rotating rod is threadedly connected to an anti-drop sleeve, one surface of the anti-drop sleeve is in contact and connected with one end surface of the connecting sleeve, a threaded hole is provided at the center position of the anti-drop sleeve, and the anti-drop sleeve can prevent the rotating rod from moving upward, and has the function of limiting and preventing dropout.

[0010] Furthermore, the surface of the extrusion rod is provided with an external thread, a threaded hole is opened at the center position of the adjustment sleeve, and anti-slip vertical grooves are provided on the sides of the adjustment sleeve. The adjustment sleeve can move up and down on the surface of the extrusion rod under the action of the thread, thereby adjusting the elastic strength of the extrusion spring.

[0011] Furthermore, the surface of the rotating rod is connected to a limiting ring via a threaded connection, and one end face of the limiting ring is in contact and connected with one end face of the connecting sleeve. The setting of the limiting ring can prevent the rotating rod from moving downward, and has a limiting effect.

[0012] Furthermore, a center hole is provided at the center of the reinforcement sleeve, and the provided center hole facilitates the user to place the bentonite sample at the center of the sand cylinder.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) This solution uses the installation groove set in the metal mesh tube to quickly fix the installation position of the sand tube, which is convenient for the assembly and later replacement of the sand tube. At the same time, the sand tube and one end of the metal mesh tube are reinforced by the reinforcement sleeve, which greatly improves the support strength of the permeable sleeve. The adjustable position extrusion plate is set to facilitate the quick fixing of the sleeve in the test water tank for testing, which greatly improves the test efficiency.

[0015] (2) A groove is provided on one surface of the reinforcement sleeve, and the inner wall of the groove is in contact with and connected to the metal mesh tube and one end surface of the sand tube. The reinforcement sleeve is in the shape of a circular ring and is made of metal material. The reinforcement sleeve not only increases the connection strength between the metal mesh tube and one end of the sand tube, but also prevents the top plate from being worn.

[0016] (3) A positioning groove is provided on one surface of the bottom plate and the top plate, and the inner walls of the two positioning grooves are respectively in contact with the end faces of the metal mesh tube and the reinforcement sleeve. The positioning groove is in the shape of a circular ring. The two positioning grooves provided on the bottom plate and the top plate can quickly fix the two end positions of the metal mesh tube, thereby improving the assembly efficiency of the permeable sleeve device.

[0017] (4) One end of the rotating rod is connected to an anti-drop sleeve by a thread, one surface of the anti-drop sleeve is in contact with one end surface of the connecting sleeve, and a threaded hole is provided at the center of the anti-drop sleeve. The anti-drop sleeve can prevent the rotating rod from moving upward, and has a limiting and anti-drop function.

[0018] (5) An external thread is provided on the surface of the extrusion rod, a threaded hole is provided at the center of the adjustment sleeve, and anti-slip vertical grooves are provided on the sides of the adjustment sleeve. The adjustment sleeve can move up and down on the surface of the extrusion rod under the action of the thread, thereby adjusting the elastic strength of the extrusion spring.

[0019] (6) The surface of the rotating rod is connected to a limiting ring through a thread, and one end face of the limiting ring is in contact with one end face of the connecting sleeve. The setting of the limiting ring can prevent the rotating rod from moving downward and has a limiting effect.

[0020] (7) A center hole is provided at the center of the reinforcement sleeve, and the center hole is provided to facilitate the user to place the bentonite sample at the center of the sand cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0022] Figure 2 It is a front view of the installation structure of the rotating rod and the extrusion plate of the present invention;

[0023] Figure 3 It is a cross-sectional view of the metal mesh tube structure of the present invention;

[0024] Figure 4 for Figure 3 A bottom view of the reinforcement sleeve structure;

[0025] Figure 5 It is a top view of the bottom plate structure of the present invention.

[0026] Description of the numbers in the figure:

[0027] 1 metal mesh cylinder, 11 mounting groove, 12 sand cylinder, 2 reinforcement sleeve, 21 slot, 22 center hole, 3 bottom plate, 31 positioning groove, 4 top plate, 5 test water tank, 51 connecting sleeve, 52 rotating rod, 53 anti-drop sleeve, 54 extrusion rod, 55 extrusion spring, 56 adjusting sleeve, 57 limiting ring, 58 extrusion plate, 6 test liquid. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 5 , a water-permeable sleeve device for indoor testing, comprising a metal mesh tube 1, see Figure 1-Figure 5One end of the metal mesh tube 1 is provided with a mounting groove 11, and the inner wall of the mounting groove 11 is in contact with a sand tube 12, which is made of materials such as quartz sand and epoxy resin powder, and belongs to the prior art. One end of the metal mesh tube 1 is sleeved with a reinforcement sleeve 2, and the center position of the reinforcement sleeve 2 is provided with a center hole 22. The center hole 22 is provided to facilitate the user to place the bentonite sample at the center position of the sand tube 12. The other end of the metal mesh tube 1 is in contact with a bottom plate 3, and the bottom plate 3 and the top plate 4 are both made of metal materials. The surface of the bottom plate 3 is in contact with a test water tank 5, and the test water tank 5 is made of transparent engineering plastics. One side of the connecting sleeve 51 is fixedly connected, and the inner wall of the connecting sleeve 51 is rotatably connected to the rotating rod 52. The surface of the rotating rod 52 is connected to a limiting ring 57 by a thread. One end face of the limiting ring 57 is in contact with one end face of the connecting sleeve 51, and the set limiting ring 57 can prevent the rotating rod 52 from moving downward and has a limiting function. One end of the rotating rod 52 is slidably sleeved with an extrusion rod 54. The extrusion rod 54 and the rotating rod 52 are a telescopic structure, and the connection method is the prior art. The outer side of the extrusion rod 54 is sleeved with an extrusion spring 55, and the extrusion spring 55 is in a state of compressed elastic force. The extrusion plate 58 is pressed downward by the elastic force to fix the installation position of the metal mesh tube 1, and one end of the extrusion spring 55 is in contact with the adjusting sleeve 56, and one end of the extrusion rod 54 is detachably connected to the extrusion plate 58. The surface of the extrusion plate 58 is in contact with the top plate 4, and the inner wall of the test water tank 5 is provided with a test liquid 6.

[0030] See also Figure 1-Figure 5 A card groove 21 is provided on one surface of the reinforcement sleeve 2, and the inner wall of the card groove 21 is in contact with and connected to one end surface of the metal mesh tube 1 and the sand tube 12. The reinforcement sleeve 2 is in the shape of a circular ring, and the reinforcement sleeve 2 is made of metal material. The reinforcement sleeve 2 not only increases the connection strength between the metal mesh tube 1 and one end of the sand tube 12, but also avoids the wear of the top plate 4. A positioning groove 31 is provided on one surface of the bottom plate 3 and the top plate 4, and the inner walls of the two positioning grooves 31 are respectively in contact with and connected to the end surfaces of the metal mesh tube 1 and the reinforcement sleeve 2. The shape of the positioning groove 31 is a circular ring. The two positioning grooves 31 provided on the bottom plate 3 and the top plate 4 can quickly fix the two end positions of the metal mesh tube 1, thereby improving the assembly efficiency of the permeable sleeve device.

[0031] See also Figure 1-Figure 5One end of the rotating rod 52 is connected to an anti-dropout sleeve 53 through a thread, and one surface of the anti-dropout sleeve 53 is in contact with an end surface of the connecting sleeve 51. A threaded hole is provided at the center of the anti-dropout sleeve 53. The anti-dropout sleeve 53 can prevent the rotating rod 52 from moving upward and has a limiting and anti-dropout function. The surface of the extrusion rod 54 is provided with an external thread, and a threaded hole is provided at the center of the adjusting sleeve 56. The sides of the adjusting sleeve 56 are provided with anti-slip vertical lines. The adjusting sleeve 56 can move up and down on the surface of the extrusion rod 54 under the action of the thread, thereby adjusting the elastic strength of the extrusion spring 55.

[0032] When the water-permeable sleeve device for indoor testing is used, the metal mesh cylinder 1 with the sand cylinder 12 installed is first placed in the positioning groove 31 provided on the bottom plate 3, and then the bentonite sample is placed at the center of the metal mesh cylinder 1 through the center hole 22, and then the top plate 4 is downwardly covered on the upper end of the reinforcement sleeve 2, and then the rotating rod 52 is rotated to move the extrusion plate 58 upward during the rotation to avoid contact with the top plate 4 during the rotation process. When the extrusion plate 58 rotates to the center of the top plate 4, it stops rotating, and then the extrusion plate 58 is released. The extrusion plate 58 is pressed in the extrusion process. Under the elastic force of the spring 55, it is firmly pressed downward on the surface of the top plate 4, and then the test can be carried out. The installation groove 11 set by the metal mesh tube 1 is convenient for quickly fixing the installation position of the sand tube 12, which is convenient for the assembly and later replacement of the sand tube 12. At the same time, the sand tube 12 and one end of the metal mesh tube 1 are reinforced by the reinforcement sleeve 2, which greatly improves the supporting strength of the permeable sleeve, and the adjustable position extrusion plate 58 is set to facilitate the quick fixation of the permeable sleeve in the test water tank 5 for testing, which greatly improves the test efficiency.

[0033] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water-permeable sleeve device for indoor testing, comprising a metal mesh tube (1), characterized in that: One end of the metal mesh cylinder (1) is provided with a mounting groove (11), the inner wall of the mounting groove (11) is in contact with and connected to a sand cylinder (12), one end of the metal mesh cylinder (1) is sleeved with a reinforcement sleeve (2), the metal mesh cylinder (1) is in the shape of a circular ring, the reinforcement sleeve (2) is in the shape of a circular ring, the other end of the metal mesh cylinder (1) is in contact with and connected to a bottom plate (3), the surface of the bottom plate (3) is in contact with and connected to a test water tank (5), one side of the test water tank (5) is fixedly connected with a connecting sleeve (51), the inner wall of the connecting sleeve (51) is rotatably connected to a rotating rod (52), one end of the rotating rod (52) is slidably sleeved with an extrusion rod (54), The outer side of the extrusion rod (54) is sleeved with an extrusion spring (55), one end of the extrusion spring (55) is in contact with an adjustment sleeve (56), one end of the extrusion rod (54) is detachably connected to an extrusion plate (58), the surface of the extrusion plate (58) is in contact with a top plate (4), the inner wall of the test water tank (5) is provided with a test liquid (6), one end of the rotating rod (52) is connected to an anti-detachment sleeve (53) by a thread, one surface of the anti-detachment sleeve (53) is in contact with an end surface of the connecting sleeve (51), a threaded hole is provided at the center of the anti-detachment sleeve (53), the surface of the extrusion rod (54) is provided with an external thread, and the adjustment sleeve (56) is provided with a screw thread. A threaded hole is provided at the center of the joint sleeve (56), and the sides of the adjusting sleeve (56) are provided with anti-slip vertical lines. The surface of the rotating rod (52) is connected to a limiting ring (57) by a thread, and one end surface of the limiting ring (57) is in contact with one end surface of the connecting sleeve (51). A clamping groove (21) is provided on one surface of the reinforcing sleeve (2), and the inner wall of the clamping groove (21) is in contact with one end surface of the metal mesh cylinder (1) and the sand cylinder (12). The reinforcing sleeve (2) is in the shape of a circular ring and is made of metal material. A positioning groove (31) is provided on one surface of the bottom plate (3) and the top plate (4), and two The inner wall of the positioning groove (31) is in contact with the end faces of the metal mesh tube (1) and the reinforcement sleeve (2), respectively. The positioning groove (31) is in the shape of a circular ring. The center position of the reinforcement sleeve (2) is provided with a center hole (22). The metal mesh tube with the sand tube installed is placed in the positioning groove provided on the bottom plate, and then the bentonite sample is placed at the center position of the metal mesh tube through the center hole. Then the top plate is downwardly covered on the upper end of the reinforcement sleeve, and then the rotating rod is rotated to move the extrusion plate upward during the rotation. When the extrusion plate rotates to the center position of the top plate, the rotation is stopped, and then the extrusion plate is released. Under the elastic force of the extrusion spring, the extrusion plate is firmly pressed downward on the surface of the top plate.

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