Reinforced concrete durability environment simulation device

Abstract

The invention provides a reinforced concrete durability environment simulation device, which comprises a sealing chamber, in which a to-be-tested ring body is arranged; the feeding pipe is rotatably arranged in the sealing chamber around the central axis of the feeding pipe, and the spraying piece is communicated with an inner cavity of the feeding pipe, so that external liquid is sprayed to the circumferential inner wall of the to-be-tested ring body through the feeding pipe and the spraying piece; the rolling part comprises a first transmission rod, a connecting shaft and two wheels, the first end of the first transmission rod is in transmission connection with the connecting shaft, the second end of the first transmission rod is in transmission connection with the feeding pipe, the connecting shaft extends in the vertical direction, and the two wheels are arranged at the two ends of the connecting shaft correspondingly; and the feeding pipe drives each wheel to be in rolling contact with the circumferential inner wall of the to-be-tested ring body under a preset acting force through the first transmission rod. According to the invention, the problem of low accuracy of the durability test result of the environmental simulation device in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of reinforced concrete durability environment simulation, and in particular to a reinforced concrete durability environment simulation device. Background Art

[0002] Environmental simulation of reinforced concrete durability is a complex process involving multiple aspects. Its purpose is to simulate the performance degradation of reinforced concrete in real environments under laboratory conditions in order to evaluate its durability and service life.

[0003] Current environmental simulation devices all place concrete specimens naturally in a simulated natural environment for durability testing. However, in actual use, reinforced concrete components need to bear a large weight. For example, reinforced concrete pavements not only face the challenges of the natural environment during use, but also face challenges such as long-term rolling of vehicles. The long-term rolling of vehicles will have a great impact on the durability of reinforced concrete components, but current environmental simulation devices are unable to simulate this environment, resulting in low accuracy of the durability test results of the environmental simulation device. Summary of the invention

[0004] The main purpose of the present invention is to provide a reinforced concrete durability environmental simulation device to solve the problem of low accuracy of durability test results of environmental simulation devices in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a reinforced concrete durability environment simulation device, comprising: a sealed chamber, the sealed chamber is a cylindrical structure that is sealed up and down, a ring body to be tested is arranged in the sealed chamber, the circumferential side wall of the ring body to be tested is in contact with the circumferential inner wall of the sealed chamber, and the axis of the ring body to be tested and the axis of the sealed chamber are arranged to coincide with each other; a feed pipe and an injection piece, the feed pipe is rotatably arranged in the sealed chamber around its central axis, the central axis of the feed pipe and the axis of the ring body to be tested are arranged to coincide with each other, the circumferential side wall of the feed pipe is connected to the injection piece, and the injection piece and the feed pipe are connected to each other. The inner cavity of the material pipe is connected so that the external liquid can be sprayed onto the circumferential inner wall of the ring body to be tested through the feed pipe and the injection member; the rolling component includes a first transmission rod, a connecting shaft and two wheels, the first transmission rod extends in the radial direction of the ring body to be tested, the first end of the first transmission rod is transmission-connected to the connecting shaft, the second end of the first transmission rod is transmission-connected to the feed pipe, the connecting shaft extends in the vertical direction, and the two wheels are respectively arranged at both ends of the connecting shaft, so that the feed pipe drives each wheel to roll in contact with the circumferential inner wall of the ring body to be tested with a preset force through the first transmission rod.

[0006] Furthermore, the rolling component also includes a fixed sleeve, the first transmission rod and the fixed sleeve are slidably connected, the fixed sleeve is connected to the circumferential side wall of the feed pipe, and the first transmission rod is movably arranged along the extension direction of the first transmission rod to adjust the distance between each wheel and the feed pipe in the extension direction of the first transmission rod to adjust the preset force.

[0007] Furthermore, the rolling component also includes a second transmission rod and a first transmission block. The second transmission rod is inserted into the fixed sleeve. One end of the second transmission rod is connected to the feed pipe, and the other end of the second transmission rod is transmission-connected to one end of the first transmission block. The other end of the first transmission block is transmission-connected to the second end of the first transmission rod. The first transmission block extends along the extension direction of the first transmission rod, and the height of the first transmission block along the vertical direction is adjustable so that the first transmission rod can move along the extension direction of the first transmission rod.

[0008] Furthermore, the rolling component also includes a second transmission block, a third transmission block and a first screw rod. The second transmission block and the third transmission block are respectively arranged on both sides of the first transmission block. The extension direction of the second transmission block and the extension direction of the third transmission block are both inclined at a preset angle relative to the extension direction of the first transmission block; the two ends of the third transmission block are respectively hinged to one end of the first transmission block and the other end of the second transmission rod, and the two ends of the second transmission block are respectively hinged to the other end of the first transmission block and the second end of the first transmission rod. The first screw rod is arranged on the first transmission block so that the height of the first transmission block along the vertical direction can be adjusted by rotating the first screw rod.

[0009] Furthermore, the rolling component also includes a spring steel plate and two third transmission rods, each of which is rotatably connected to the connecting shaft, and both ends of the spring steel plate are respectively connected to the two third transmission rods. The middle protrusion of the spring steel plate is connected to the first end of the first transmission rod, so that the spring steel plate can move in a direction close to the connecting shaft through the first transmission rod, so that the spring steel plate can be elastically deformed and filled with elastic force, so that the elastic force of the spring steel plate acts on the connecting shaft.

[0010] Furthermore, the rolling component also includes two first connecting plates and two first sliding sleeves, the two first connecting plates and the two first sliding sleeves are arranged in a one-to-one correspondence, the two first sliding sleeves and the two third transmission rods are arranged in a one-to-one correspondence, one end of each first connecting plate is connected to the circumferential outer wall of the first transmission rod, the other end of each first connecting plate is connected to the corresponding first sliding sleeve, and each first sliding sleeve can be slidably mounted on the corresponding third transmission rod.

[0011] Furthermore, the reinforced concrete durability environment simulation device also includes an arc plate, which is arranged in a sealed chamber, and the arc plate has a first end and a second end. From the first end to the second end, the distance between the inner wall of the arc plate and the circumferential inner wall of the ring body to be tested gradually increases; the rolling component also includes a roller, and the roller is rotatably connected to any one of the two third transmission rods, from the first end to the second end, so that the roller is driven by the third transmission rod to roll and contact with the inner wall of the arc plate, so that the elastic force of the spring steel plate gradually increases, so that after the roller is separated from the second end of the arc plate, the preset force is increased; wherein, the axial extension direction of the roller is arranged parallel to the axial extension direction of the feed pipe.

[0012] Furthermore, the first end of the arc plate is rotationally connected to the top wall of the sealing chamber, and the reinforced concrete durability environment simulation device also includes a threaded sleeve, a second screw and an adjusting block. The threaded sleeve is penetrated through the sealing chamber and the circumferential inner wall of the ring body to be tested, the second screw is threadedly connected to the threaded sleeve, the second screw is rotationally connected to one end of the adjusting block, and the other end of the adjusting block is transmission-connected to the second end of the arc plate, so that the second screw drives the adjusting block to move by rotating the second screw, so as to adjust the distance between the second end of the arc plate and the circumferential inner wall of the ring body to be tested.

[0013] Furthermore, the reinforced concrete durability environment simulation device also includes a hinge block, the two ends of which are respectively hinged to the other end of the adjustment block and the second end of the arc plate; the bottom surface height of the hinge block and the bottom surface height of the adjustment block are both greater than the top surface height of the arc plate, and the height of the axial top wall of the roller is less than the top surface height of the arc plate.

[0014] Furthermore, the reinforced concrete durability environment simulation device also includes a shunt pipe, which extends in the vertical direction, is connected to the circumferential side walls of the shunt pipe and the feed pipe, and the inner cavity of the shunt pipe is arranged to communicate with the inner cavity of the feed pipe; there are multiple injection parts, and the multiple injection parts are arranged on the shunt pipe at intervals in the vertical direction, and each injection part is arranged to communicate with the inner cavity of the shunt pipe.

[0015] By applying the technical solution of the present invention, the reinforced concrete durability environment simulation device includes a sealing chamber, a feed pipe, an injection member and a rolling member. The circumferential side wall of the ring body to be tested fits the circumferential inner wall of the sealing chamber, and the rolling member includes a first transmission rod, a connecting shaft and two wheels. The external liquid is sprayed onto the circumferential inner wall of the ring body to be tested through the feed pipe and the injection member, so as to truly simulate the natural environment in which the ring body to be tested is located; the first transmission rod is driven to rotate around the axis of the feed pipe through the feed pipe, so that the first transmission rod drives each wheel to cyclically roll and contact with the circumferential inner wall of the ring body to be tested with a preset force, and the circumferential inner wall of the ring body to be tested can provide a complete and continuous rolling path for each wheel, so as to simulate the use condition of the ring body to be tested being rolled by the wheels for a long time, so as to simulate a more realistic use environment of the ring body to be tested, thereby solving the problem of low accuracy of durability test results of the environmental simulation device in the prior art and improving the accuracy of the durability test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the internal structure of a reinforced concrete durability environment simulation device according to the present invention is shown at one angle;

[0018] Figure 2 A schematic structural diagram of a mechanical seal, a feed pipe, a delivery pipe, a flow divider, an injection member, a connecting pipe, and a rolling component of a reinforced concrete durability environment simulation device according to the present invention is shown;

[0019] Figure 3 A schematic structural diagram of a first transmission block, a second transmission block, a third transmission block, a first screw rod, a first transmission rod and a second transmission rod of a reinforced concrete durability environment simulation device according to the present invention is shown;

[0020] Figure 4 A partial structural schematic diagram of a rolling component of a reinforced concrete durability environment simulation device according to the present invention is shown;

[0021] Figure 5 A schematic diagram showing the internal structure of the reinforced concrete durability environment simulation device according to the present invention from another angle;

[0022] Figure 6 A schematic side structural diagram of a feed pipe of a reinforced concrete durability environment simulation device according to the present invention is shown;

[0023] Figure 7A schematic structural diagram of an embodiment of a reinforced concrete durability environment simulation device according to the present invention is shown;

[0024] Figure 8 Shows Figure 5 A local enlarged schematic diagram of point A in the middle.

[0025] The above drawings include the following reference numerals:

[0026] 32. feeding pipe; 13. bottom wall; 11. circumferential side wall; 12. top wall; 33. mechanical seal; 34. sealed bearing; 35. connecting pipe; 1. sealing chamber; 2. ring body to be tested; 31. feeding pipe; 37. injection piece; 412. first transmission rod; 42. connecting shaft; 43. wheel; 411. fixing sleeve; 422. second transmission rod; 413. first transmission block; 414. second transmission block; 417. third transmission block; 415. first screw; 45. spring steel plate; 44. third transmission rod; 46. first connecting plate; 47. first sliding sleeve; 51. arc plate; 54. threaded sleeve; 53. second screw; 52. adjusting block; 55. hinge block; 56. roller; 36. shunt pipe; 4111. shell; 4112. second sliding sleeve; 511. pin; 57. support piece; 35. connecting pipe. DETAILED DESCRIPTION

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0029] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0030] Please refer to Figures 1 to 8 The present invention provides a reinforced concrete durability environment simulation device, comprising: a sealed chamber 1, the sealed chamber 1 is a cylindrical structure that is closed up and down, a ring body 2 to be tested is arranged in the sealed chamber 1, the circumferential side wall of the ring body 2 to be tested is in contact with the circumferential inner wall of the sealed chamber 1, and the axis of the ring body 2 to be tested is arranged to coincide with the axis of the sealed chamber 1; a feed pipe 31 and an injection member 37, the feed pipe 31 is rotatably arranged in the sealed chamber 1 around its central axis, the central axis of the feed pipe 31 is arranged to coincide with the axis of the ring body 2 to be tested, the circumferential side wall of the feed pipe 31 is connected to the injection member 37, and the injection member 37 is communicated with the inner cavity of the feed pipe 31 so that the outer Part of the liquid is sprayed onto the circumferential inner wall of the ring body 2 to be tested through the feed pipe 31 and the injection member 37; the rolling component includes a first transmission rod 412, a connecting shaft 42 and two wheels 43, the first transmission rod 412 extends in the radial direction of the ring body 2 to be tested, the first end of the first transmission rod 412 is transmission-connected to the connecting shaft 42, the second end of the first transmission rod 412 is transmission-connected to the feed pipe 31, the connecting shaft 42 extends in the vertical direction, and the two wheels 43 are respectively arranged at both ends of the connecting shaft 42, so that the feed pipe 31 drives each wheel 43 to roll in contact with the circumferential inner wall of the ring body 2 to be tested with a preset force through the first transmission rod 412.

[0031] The reinforced concrete durability environment simulation device of the present invention includes a sealed chamber 1, a feed pipe 31, an injection piece 37 and a rolling component. The circumferential side wall of the ring body 2 to be tested is in contact with the circumferential inner wall of the sealed chamber 1. The rolling component includes a first transmission rod 412, a connecting shaft 42 and two wheels 43. The external liquid is sprayed onto the circumferential inner wall of the ring body 2 to be tested through the feed pipe 31 and the injection member 37, so as to truly simulate the natural environment in which the ring body 2 to be tested is located; the first transmission rod 412 is driven by the feed pipe 31 to rotate around the axis of the feed pipe 31, so that the first transmission rod 412 drives each wheel 43 to cyclically roll in contact with the circumferential inner wall of the ring body 2 to be tested with a preset force, and the circumferential inner wall of the ring body 2 to be tested can provide a complete and continuous rolling path for each wheel 43, so as to simulate the use conditions of the ring body 2 to be tested being rolled by the wheels for a long time, thereby simulating a more realistic use environment of the ring body 2 to be tested, thereby solving the problem of low accuracy of the durability test results of the environmental simulation device in the prior art and improving the accuracy of the durability test.

[0032] Specifically, since the sealed chamber 1 is a cylindrical structure that is sealed at the top and bottom, it will not affect the external environment during the durability test of the ring body 2 to be tested; the feed pipe 31 only needs to rotate around the ring body 2 to be tested, so that each wheel 43 can be in cyclic rolling contact with the circumferential inner wall of the ring body 2 to be tested with a preset force, so that the durability test cost of the ring body 2 to be tested is relatively low.

[0033] Specifically, the reinforced concrete durability environment simulation device also includes a feed pipe 32. The feed pipe 31 and the feed pipe 32 can be made of materials such as stainless steel. The axes of the feed pipe 31 and the feed pipe 32 are both arranged to coincide with the axis of the sealed chamber 1. One end of the feed pipe 31 passes through the top wall 12 of the sealed chamber 1, and the feed pipe 31 is rotatably connected to the top wall 12 of the sealed chamber 1 through a sealing bearing 34. The feed pipe 31 is connected to the feed pipe 32 through a mechanical seal 33. During actual operation, the external liquid enters the feed pipe 31 through the feed pipe 32 and is then sprayed to the circumferential inner wall of the ring body 2 to be tested through the injection member 37.

[0034] Specifically, the injection member 37 is a nozzle; the external liquid includes fresh water or acid water or alkaline water; the ring body 2 to be tested is a reinforced concrete component; the sealed chamber 1 can also be used to bake the ring body 2 to be tested to simulate baking in a high temperature environment.

[0035] Specifically, the sealed chamber 1 includes a top wall 12 , a bottom wall 13 and a circumferential side wall 11 . Along the axial direction of the sealed chamber 1 , the top wall 12 and the bottom wall 13 are connected to two sides of the circumferential side wall 11 , respectively.

[0036] In this embodiment, the rolling component also includes a fixed sleeve 411, a first transmission rod 412 and the fixed sleeve 411 are slidably connected, the fixed sleeve 411 is connected to the circumferential side wall of the feed pipe 31, and the first transmission rod 412 is movably arranged along the extension direction of the first transmission rod 412 to adjust the distance between each wheel 43 and the feed pipe 31 in the extension direction of the first transmission rod 412 to adjust the preset force.

[0037] Specifically, the fixed sleeve 411 is used to connect the first transmission rod 412 and the feed pipe 31, so that the first transmission rod 412 and the feed pipe 31 are transmission connected, so that the feed pipe 31 can drive the first transmission rod 412, the connecting shaft 42 and the two wheels 43 to rotate; at the same time, at least a part of the first transmission rod 412 is movably inserted into the fixed sleeve 411, so that the distance between the connecting shaft 42 and the feed pipe 31 in the extension direction of the first transmission rod 412 is changed, thereby changing the preset action force of each wheel 43 on the circumferential inner wall of the ring body 2 to be tested.

[0038] In specific implementation, when the distance between the connecting shaft 42 and the feed tube 31 in the extension direction of the first transmission rod 412 increases, the pressure applied by each wheel 43 to the circumferential inner wall of the ring body 2 to be tested, that is, the preset force, will increase; when the distance between the connecting shaft 42 and the feed tube 31 in the extension direction of the first transmission rod 412 decreases, the pressure applied by each wheel 43 to the circumferential inner wall of the ring body 2 to be tested, that is, the preset force, will increase.

[0039] In this embodiment, the rolling component also includes a second transmission rod 422 and a first transmission block 413. The second transmission rod 422 is inserted into the fixed sleeve 411. One end of the second transmission rod 422 is connected to the feed pipe 31, and the other end of the second transmission rod 422 is transmission-connected to one end of the first transmission block 413. The other end of the first transmission block 413 is transmission-connected to the second end of the first transmission rod 412. The first transmission block 413 extends along the extension direction of the first transmission rod 412, and the height of the first transmission block 413 along the vertical direction is adjustable so that the first transmission rod 412 moves along the extension direction of the first transmission rod 412.

[0040] Specifically, the first transmission block 413 is used to transmit and connect the second transmission rod 422 and the first transmission rod 412, so that the feed pipe 31 and the first transmission rod 412 are transmission connected, so that the feed pipe 31 can drive the first transmission rod 412, the connecting shaft 42 and the two wheels 43 to rotate; by adjusting the height of the first transmission block 413 in the vertical direction, the first transmission block 413 pulls the first transmission rod 412, so that the first transmission rod 412 can move in a direction close to or away from the first transmission block 413, so that the distance between the connecting shaft 42 and the feed pipe 31 in the extension direction of the first transmission rod 412 changes.

[0041] In this embodiment, the rolling component also includes a second transmission block 414, a third transmission block 417 and a first screw rod 415. The second transmission block 414 and the third transmission block 417 are respectively arranged on both sides of the first transmission block 413. The extension direction of the second transmission block 414 and the extension direction of the third transmission block 417 are both inclined at a preset angle relative to the extension direction of the first transmission block 413; the two ends of the third transmission block 417 are respectively hinged to one end of the first transmission block 413 and the other end of the second transmission rod 422, and the two ends of the second transmission block 414 are respectively hinged to the other end of the first transmission block 413 and the second end of the first transmission rod 412. The first screw rod 415 is arranged on the first transmission block 413 so that the height of the first transmission block 413 in the vertical direction can be adjusted by rotating the first screw rod 415.

[0042] Specifically, the second transmission block 414 is used to connect the first transmission block 413 and the first transmission rod 412, and the third transmission block 417 is used to connect the first transmission block 413 and the second transmission rod 422, so that the two ends of the first transmission block 413 are respectively connected to the second transmission rod 422 and the first transmission rod 412 for transmission; by adjusting the height of the first transmission block 413 in the vertical direction, the first transmission block 413 pulls the first transmission rod 412 through the second transmission block 414, so that the first transmission rod 412 can move in the direction close to or away from the first transmission block 413.

[0043] Specifically, the fixed sleeve 411 includes a shell 4111 and two second sliding sleeves 4112, each of which extends along the extension direction of the first transmission rod 412, and the two ends of the shell 4111 are respectively connected to the two second sliding sleeves 4112, and the second transmission rod 422 and at least part of the first transmission rod 412 are respectively movably inserted into the two second sliding sleeves 4112, so that the second sliding sleeve 4112 can guide the first transmission rod 412 to ensure that the first transmission rod 412 moves along the extension direction of the first transmission rod 412, and the shell 4111 is used to accommodate the first transmission block 413, the second transmission block 414 and the third transmission block 417.

[0044] Specifically, the first screw rod 415 is rotatably connected to the first transmission block 413 through a bearing, and one end of the first screw rod 415 is passed through the housing 4111, so that the user can rotate the first screw rod 415. When the vertical height of the first screw rod 415 increases, the first transmission rod 412 can move toward the direction close to the first transmission block 413, and the distance between the connecting shaft 42 and the feeding tube 31 in the extension direction of the first transmission rod 412 is reduced, so that the pressure applied by each wheel 43 to the circumferential inner wall of the ring body 2 to be tested, that is, the preset force, will increase; when the vertical height of the first screw rod 415 decreases, the first transmission rod 412 can move toward the direction away from the first transmission block 413, and the distance between the connecting shaft 42 and the feeding tube 31 in the extension direction of the first transmission rod 412 is increased, so that the pressure applied by each wheel 43 to the circumferential inner wall of the ring body 2 to be tested, that is, the preset force, will decrease.

[0045] In this embodiment, the rolling component also includes a spring steel plate 45 and two third transmission rods 44. Each third transmission rod 44 is rotatably connected to the connecting shaft 42. The two ends of the spring steel plate 45 are respectively connected to the two third transmission rods 44. The middle protrusion of the spring steel plate 45 is connected to the first end of the first transmission rod 412, so that it can move in a direction close to the connecting shaft 42 through the first transmission rod 412, so that the spring steel plate 45 is elastically deformed and filled with elastic force, so that the elastic force of the spring steel plate 45 acts on the connecting shaft 42.

[0046] Specifically, the third transmission rod 44 is rotatably connected to the connecting shaft 42 through a bearing, and the third transmission rod 44 is used to connect the spring steel plate 45 and the connecting shaft 42, thereby making the first transmission rod 412 and the connecting shaft 42 transmission connected. When the first transmission rod 412 moves in a direction close to the connecting shaft 42, the elastic force generated by the spring steel plate 45 acts on the connecting shaft 42, thereby strengthening the preset force applied by each wheel 43 to the circumferential inner wall of the ring body 2 to be tested, and avoiding the preset force being too small to truly simulate the use environment of the ring body 2 to be tested.

[0047] In this embodiment, the rolling component also includes two first connecting plates 46 and two first sliding sleeves 47. The two first connecting plates 46 and the two first sliding sleeves 47 are arranged in a one-to-one correspondence, and the two first sliding sleeves 47 and the two third transmission rods 44 are arranged in a one-to-one correspondence. One end of each first connecting plate 46 is connected to the circumferential outer wall of the first transmission rod 412, and the other end of each first connecting plate 46 is connected to the corresponding first sliding sleeve 47. Each first sliding sleeve 47 can be slidably mounted on the corresponding third transmission rod 44.

[0048] Specifically, the first connecting plate 46 is used to support the corresponding first sliding sleeve 47 , and the first sliding sleeve 47 is used to support and guide the third transmission rod 44 to ensure that the third transmission rod 44 can move along the extension direction of the first transmission rod 412 .

[0049] In this embodiment, the reinforced concrete durability environment simulation device also includes an arc plate 51, which is arranged in the sealed chamber 1, and the arc plate 51 has a first end and a second end. From the first end to the second end, the distance between the inner wall of the arc plate 51 and the circumferential inner wall of the ring body 2 to be tested gradually increases; the rolling component also includes a roller 56, and the roller 56 is rotatably connected to any one of the two third transmission rods 44, from the first end to the second end, so that the roller 56 is driven by the third transmission rod 44 to roll and contact with the inner wall of the arc plate 51, so that the elastic force of the spring steel plate 45 gradually increases, so that after the roller 56 is separated from the second end of the arc plate 51, the preset force is increased; wherein, the axial extension direction of the roller 56 is arranged parallel to the axial extension direction of the feed pipe 31.

[0050] Specifically, the distance between the inner wall of the arc plate 51 and the feed tube 31 gradually decreases from the first end to the second end, and the roller 56 is driven by the third transmission rod 44 to roll in contact with the inner wall of the arc plate 51 from the first end to the second end, so that the distance between the connecting shaft 42 and the feed tube 31 in the extension direction of the first transmission rod 412 gradually decreases, the spring steel plate 45 further contracts, and the elastic force generated by the spring steel plate 45 further increases. When the roller 56 is separated from the second end of the arc plate 51, the elastic force accumulated on the spring steel plate 45 is released instantly, so that the preset force of the wheel 43 on the test ring body 2 is rapidly increased. In this way, the vehicle vibration caused by the uneven surface of the test ring body 2 when the vehicle is driving on the test ring body 2 can be simulated, thereby ensuring the accuracy of the durability test.

[0051] In this embodiment, the first end of the arc plate 51 is rotatably connected to the top wall 12 of the sealing chamber 1, and the reinforced concrete durability environment simulation device also includes a threaded sleeve 54, a second screw 53 and an adjusting block 52. The threaded sleeve 54 is penetrated on the circumferential inner wall of the sealing chamber 1 and the ring body 2 to be tested, and the second screw 53 is threadedly connected to the threaded sleeve 54. The second screw 53 is rotatably connected to one end of the adjusting block 52, and the other end of the adjusting block 52 is transmission-connected to the second end of the arc plate 51, so that the second screw 53 can drive the adjusting block 52 to move by rotating the second screw 53 to adjust the distance between the second end of the arc plate 51 and the circumferential inner wall of the ring body 2 to be tested.

[0052] Specifically, the first end of the arc plate 51 is rotatably connected to the top wall 12 of the sealing chamber 1 via a pin shaft 511, and the threaded sleeve 54 is used to support the second screw 53; one end of the second screw 53 is passed through the ring body 2 to be tested and the circumferential inner wall of the sealing chamber 1, so that the user can rotate the second screw 53 to make the second screw 53 drive the adjustment block 52 to move, so that the adjustment block 52 drives the second end of the arc plate 51 to move, so as to adjust the distance between the second end of the arc plate 51 and the circumferential inner wall of the ring body 2 to be tested, thereby changing the elastic force instantly released by the spring steel plate 45 after the roller 56 is separated from the second end of the arc plate 51, thereby changing the preset force applied by each wheel 43.

[0053] In this embodiment, the reinforced concrete durability environment simulation device also includes a hinge block 55, the two ends of which are respectively hinged to the other end of the adjustment block 52 and the second end of the arc plate 51; the bottom surface height of the hinge block 55 and the bottom surface height of the adjustment block 52 are both greater than the top surface height of the arc plate 51, and the height of the axial top wall of the roller 56 is less than the top surface height of the arc plate 51.

[0054] Specifically, the bottom end of the roller 56 is rotatably connected to a support member 57 , and the bottom end of the support member 57 is fixedly connected to the third transmission rod 44 .

[0055] Specifically, the hinge block 55 is used to transmit and connect the second end of the arc plate 51 and the adjustment block 52; by making the bottom surface height of the hinge block 55 and the bottom surface height of the adjustment block 52 greater than the top surface height of the arc plate 51, the height of the axial top wall of the roller 56 is less than the top surface height of the arc plate 51, which can prevent the adjustment block 52 and the hinge block 55 from hindering the rolling of the roller 56 and ensure that the roller 56 can roll over the inner arc surface of the arc plate 51.

[0056] In this embodiment, the reinforced concrete durability environment simulation device also includes a diverter pipe 36, which extends in the vertical direction, is connected to the circumferential side wall of the diverter pipe 36 and the feed pipe 31, and the inner cavity of the diverter pipe 36 is connected to the inner cavity of the feed pipe 31; there are multiple injection parts 37, and the multiple injection parts 37 are arranged on the diverter pipe 36 at intervals in the vertical direction, and each injection part 37 is arranged to be connected to the inner cavity of the diverter pipe 36.

[0057] Specifically, the reinforced concrete durability environment simulation device also includes a connecting pipe 35, both ends of which are respectively connected to the diverter pipe 36 and the feed pipe 31; wherein, there are two connecting pipes 35 and two diverter pipes 36, the two diverter pipes 36 are arranged relatively along the radial direction of the feed pipe 31, the two diverter pipes 36 and the two connecting pipes 35 are arranged one by one, and each diverter pipe 36 is provided with a plurality of injection parts 37 at intervals.

[0058] Specifically, the shunt pipe 36 and the connecting pipe 35 are used to connect the feed pipe 31 and the injection member 37, so that the external liquid can be sprayed onto the circumferential inner wall of the ring body 2 to be tested through the feed pipe 31, the connecting pipe 35, the shunt pipe 36 and the injection member 37.

[0059] Specifically, the plurality of spray members 37 can ensure the uniformity of spraying the external liquid.

[0060] In specific implementation, a concrete durability environment simulation method, based on the above reinforced concrete durability environment simulation device, comprises the following steps:

[0061] S1, using a pump body to pump external fresh water, acid water or alkaline water into the feed pipe 31, so that the external fresh water, acid water or alkaline water is sprayed onto the circumferential inner wall of the ring body 2 to be tested through the injection member 37;

[0062] S2. Use a motor to drive the feed pipe 31 to rotate, so as to drive the first transmission rod 412 to rotate, so that the wheel 43 rolls on the circumferential inner wall of the ring body 2 to be tested.

[0063] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0064] The reinforced concrete durability environment simulation device of the present invention includes a sealed chamber 1, a feed pipe 31, an injection piece 37 and a rolling component. The circumferential side wall of the ring body 2 to be tested is in contact with the circumferential inner wall of the sealed chamber 1. The rolling component includes a first transmission rod 412, a connecting shaft 42 and two wheels 43. The external liquid is sprayed onto the circumferential inner wall of the ring body 2 to be tested through the feed pipe 31 and the injection member 37, so as to truly simulate the natural environment in which the ring body 2 to be tested is located; the first transmission rod 412 is driven by the feed pipe 31 to rotate around the axis of the feed pipe 31, so that the first transmission rod 412 drives each wheel 43 to cyclically roll in contact with the circumferential inner wall of the ring body 2 to be tested with a preset force, and the circumferential inner wall of the ring body 2 to be tested can provide a complete and continuous rolling path for each wheel 43, so as to simulate the use conditions of the ring body 2 to be tested being rolled by the wheels for a long time, thereby simulating a more realistic use environment of the ring body 2 to be tested, thereby solving the problem of low accuracy of the durability test results of the environmental simulation device in the prior art and improving the accuracy of the durability test.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reinforced concrete durability environment simulation device, characterized in that: include: A sealed chamber (1), the sealed chamber (1) being a cylindrical structure sealed at the top and bottom, the ring body (2) to be tested being arranged in the sealed chamber (1), the circumferential side wall of the ring body (2) to be tested being in contact with the circumferential inner wall of the sealed chamber (1), and the axis of the ring body (2) to be tested being arranged to coincide with the axis of the sealed chamber (1); A feeding pipe (31) and a spraying member (37), wherein the feeding pipe (31) is rotatably arranged around its central axis in the sealing chamber (1), the central axis of the feeding pipe (31) and the axis of the ring body (2) to be tested are arranged to coincide with each other, the circumferential side wall of the feeding pipe (31) is connected to the spraying member (37), and the spraying member (37) and the inner cavity of the feeding pipe (31) are communicated, so that external liquid can be sprayed onto the circumferential inner wall of the ring body (2) to be tested through the feeding pipe (31) and the spraying member (37); A rolling component, the rolling component comprising a first transmission rod (412), a connecting shaft (42) and two wheels (43), the first transmission rod (412) extending in the radial direction of the ring body (2) to be tested, the first end of the first transmission rod (412) being transmission-connected to the connecting shaft (42), the second end of the first transmission rod (412) being transmission-connected to the feeding pipe (31), the connecting shaft (42) extending in the vertical direction, the two wheels (43) being respectively arranged at both ends of the connecting shaft (42), so that the feeding pipe (31) drives each of the wheels (43) through the first transmission rod (412) to roll in contact with the circumferential inner wall of the ring body (2) to be tested with a preset force.

2. The reinforced concrete durability environment simulation device according to claim 1, characterized in that: The rolling component further comprises a fixing sleeve (411), the first transmission rod (412) and the fixing sleeve (411) are slidably connected, the fixing sleeve (411) is connected to the circumferential side wall of the feeding pipe (31), and the first transmission rod (412) is movably arranged along the extension direction of the first transmission rod (412) to adjust the distance between each of the wheels (43) and the feeding pipe (31) in the extension direction of the first transmission rod (412) to adjust the preset force.

3. The reinforced concrete durability environment simulation device according to claim 2, characterized in that: The rolling component also includes a second transmission rod (422) and a first transmission block (413), wherein the second transmission rod (422) is inserted into the fixed sleeve (411), one end of the second transmission rod (422) is connected to the feeding pipe (31), the other end of the second transmission rod (422) is transmission-connected to one end of the first transmission block (413), the other end of the first transmission block (413) is transmission-connected to the second end of the first transmission rod (412), the first transmission block (413) extends along the extension direction of the first transmission rod (412), and the height of the first transmission block (413) in the vertical direction is adjustable so that the first transmission rod (412) moves along the extension direction of the first transmission rod (412).

4. The reinforced concrete durability environment simulation device according to claim 3, characterized in that: The rolling component further comprises a second transmission block (414), a third transmission block (417) and a first screw rod (415); the second transmission block (414) and the third transmission block (417) are respectively arranged on both sides of the first transmission block (413); an extension direction of the second transmission block (414) and an extension direction of the third transmission block (417) are both inclined at a preset angle relative to an extension direction of the first transmission block (413); The two ends of the third transmission block (417) are respectively hinged to one end of the first transmission block (413) and the other end of the second transmission rod (422); the two ends of the second transmission block (414) are respectively hinged to the other end of the first transmission block (413) and the second end of the first transmission rod (412); the first screw rod (415) is arranged on the first transmission block (413) so that the height of the first transmission block (413) in the vertical direction can be adjusted by rotating the first screw rod (415).

5. The reinforced concrete durability environment simulation device according to claim 1, characterized in that: The rolling component further comprises a spring steel plate (45) and two third transmission rods (44), each of the third transmission rods (44) being rotatably connected to the connecting shaft (42), the two ends of the spring steel plate (45) being respectively connected to the two third transmission rods (44), the middle protrusion of the spring steel plate (45) being connected to the first end of the first transmission rod (412), so that the spring steel plate (45) can move in a direction close to the connecting shaft (42) through the first transmission rod (412), so that the spring steel plate (45) undergoes elastic deformation and is filled with elastic force, so that the elastic force of the spring steel plate (45) acts on the connecting shaft (42).

6. The reinforced concrete durability environment simulation device according to claim 1, characterized in that: The rolling component also includes two first connecting plates (46) and two first sliding sleeves (47), the two first connecting plates (46) and the two first sliding sleeves (47) are arranged in a one-to-one correspondence, the two first sliding sleeves (47) and the two third transmission rods (44) are arranged in a one-to-one correspondence, one end of each of the first connecting plates (46) is connected to the circumferential outer wall of the first transmission rod (412), the other end of each of the first connecting plates (46) is connected to the corresponding first sliding sleeve (47), and each of the first sliding sleeves (47) can be slidably mounted on the corresponding third transmission rod (44).

7. The reinforced concrete durability environment simulation device according to claim 5, characterized in that: The reinforced concrete durability environment simulation device further comprises an arc plate (51), the arc plate (51) being arranged in the sealed chamber (1), the arc plate (51) having a first end and a second end, and the distance between the inner wall of the arc plate (51) and the circumferential inner wall of the ring body (2) to be tested gradually increases in a direction from the first end to the second end; The rolling component further comprises a roller (56), wherein the roller (56) is rotatably connected to any one of the two third transmission rods (44), and the roller (56) is driven by the third transmission rod (44) to roll in contact with the inner wall of the arc plate (51) from the first end to the second end, so that the elastic force of the spring steel plate (45) gradually increases, so that the preset force increases after the roller (56) is separated from the second end of the arc plate (51); wherein the axis extension direction of the roller (56) is arranged parallel to the axis extension direction of the feeding pipe (31).

8. The reinforced concrete durability environment simulation device according to claim 7, characterized in that: The first end of the arc plate (51) is rotatably connected to the top wall (12) of the sealed chamber (1). The reinforced concrete durability environment simulation device further comprises a threaded sleeve (54), a second screw rod (53) and an adjustment block (52). The threaded sleeve (54) is inserted through the sealed chamber (1) and the circumferential inner wall of the ring body (2) to be tested. The second screw rod (53) is threadedly connected to the threaded sleeve (54). The second screw rod (53) is rotatably connected to one end of the adjustment block (52). The other end of the adjustment block (52) is transmission-connected to the second end of the arc plate (51), so that the second screw rod (53) drives the adjustment block (52) to move by rotating the second screw rod (53), so as to adjust the distance between the second end of the arc plate (51) and the circumferential inner wall of the ring body (2) to be tested.

9. The reinforced concrete durability environment simulation device according to claim 8, characterized in that: The reinforced concrete durability environment simulation device also includes a hinge block (55), two ends of which are hinged to the other end of the adjustment block (52) and the second end of the arc plate (51), respectively; The bottom surface height of the hinge block (55) and the bottom surface height of the adjustment block (52) are both greater than the top surface height of the arc plate (51), and the height of the axial top wall of the roller (56) is less than the top surface height of the arc plate (51).

10. The reinforced concrete durability environment simulation device according to claim 1, characterized in that: The reinforced concrete durability environment simulation device further comprises a shunt pipe (36), the shunt pipe (36) extending along the vertical direction, the shunt pipe (36) being connected to the circumferential side wall of the feed pipe (31), and the inner cavity of the shunt pipe (36) being arranged to communicate with the inner cavity of the feed pipe (31); There are a plurality of injection members (37), and the plurality of injection members (37) are arranged on the shunt pipe (36) at intervals along the vertical direction, and each of the injection members (37) is arranged to communicate with the inner cavity of the shunt pipe (36).

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