Loess dry-wet cycle testing machine

Abstract

The utility model provides a loess dry-wet cycle testing machine, which comprises a test box, a thermal insulation block is fixedly installed in the test box, the thermal insulation block is used for dividing the test box into two chambers, the two chambers are respectively used for drying and humidifying, a rotating column is rotatably connected between the thermal insulation block and the bottom of the test box, two storage pieces are arranged on the rotating column, and the storage pieces are used for storing loess. The two storage pieces are both used for storing loess, and the two storage pieces achieve position switching under rotation of the rotating column so as to achieve dry-wet circulation. According to the dry-wet cycle test device, the thermal insulation block is arranged, the thermal insulation block is used for dividing the interior of the test box into two cavities, the two cavities are used for drying and humidifying correspondingly, the two storage pieces are used for storing loess, and the positions of the two storage pieces are switched under rotation of the rotating column, so that a dry-wet cycle test is achieved; the loess can be rapidly and circularly switched between drying and humidifying, and the situation that the loess is affected by the external environment in the switching process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a loess dry-wet cycle testing machine. Background Art

[0002] Loess dry-wet cycle test is an important research method in the field of geotechnical engineering. It aims to deeply explore the changes in the physical, chemical and mechanical properties of loess during repeated drying and wetting. As a special type of soil, loess has unique engineering properties that make it exhibit unique behaviors in engineering practice. Therefore, through dry-wet cycle test, we can better understand and predict the engineering stability and safety of loess areas.

[0003] In the prior art, when conducting dry and wet tests, most of them are carried out in a drying box and a humidifying box respectively, so that loess needs to be switched between the two devices. During the switching process, the loess is exposed to the external environment, which not only affects the accuracy of the results, but also requires the operation and management of the two devices separately. At the same time, it is also necessary to ensure that the conversion process between the two devices will not cause damage or impact to the loess samples, which not only increases the complexity of the test, but also may increase the cost of the test. Therefore, we make improvements on this and propose a loess dry-wet cycle test machine. Summary of the invention

[0004] The purpose of the utility model is to address the problem that currently most of the processes are carried out in a drying box and a humidifying box respectively, so that loess needs to be switched between the two devices, and the loess is exposed to the external environment during the switching process, which not only affects the accuracy of the results.

[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides a loess dry-wet cycle testing machine to improve the above-mentioned problem.

[0006] The specific application is as follows:

[0007] A loess dry-wet cycle testing machine comprises a test box, in which a temperature insulation block is fixedly installed, the temperature insulation block is used to isolate the test box into two chambers, and the two chambers are used for drying and humidification respectively, and a rotating column is rotatably connected between the temperature insulation block and the bottom of the test box, and two storage pieces are arranged on the rotating column, both of which are used to store loess, and the two storage pieces can switch their positions under the rotation of the rotating column to realize dry-wet cycle.

[0008] As a preferred technical solution of the present application, a first motor is fixedly installed on the top of the test box, and the output shaft of the first motor passes through the test box and the insulation block in sequence and is fixedly connected to the top of the rotating column, and sealed bearings are provided at the connection between the output shaft of the first motor and the test box and the insulation block.

[0009] As a preferred technical solution of the present application, the bottom end of the rotating column passes through the test box and extends to the bottom of the test box, and a sealed bearing is also provided at the connection between the outer surface of the rotating column and the bottom wall of the test box.

[0010] As a preferred technical solution of the present application, the storage component includes a accommodating groove opened in the rotating column and a side groove corresponding to the position of the accommodating groove, a support box is slidably connected to the inner side of the accommodating groove, a sealing plate used in conjunction with the side groove is fixedly connected to one side of the support box, a support frame is fixedly installed in the support box, and a placement box located above the support frame is placed in the support box, and a rotating handle is hinged on the top of the placement box.

[0011] As a preferred technical solution of the present application, a driving part is provided between the rotating column and the two storage members, and the driving part is used to drive the support box to move.

[0012] As a preferred technical solution of the present application, the driving part includes a second motor installed at the bottom of the rotating column, the output shaft of the second motor penetrates into the rotating column and is fixedly connected to a gear, both sides of the gear are meshed with racks, one end of the rack extends into the accommodating groove and is fixedly connected to the support box.

[0013] As a preferred technical solution of the present application, a sliding groove is provided at the bottom of the inner cavity of the accommodating groove, and the rack is slidably connected in the sliding groove.

[0014] As a preferred technical solution of the present application, a water pump is installed at the bottom of the test box, the output end of the water pump is connected to a delivery pipe, one end of the delivery pipe penetrates into the test box and is fixedly connected to a nozzle, and the nozzle is located in the humidification chamber of the test box.

[0015] As a preferred technical solution of the present application, a dryer is also embedded in the top of the test box, and the position of the dryer corresponds to the drying chamber of the test box.

[0016] As a preferred technical solution of the present application, doors are installed on both sides of the test box through hinges, and a water collection box is also placed below the nozzle in the test box.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the scheme of this application:

[0019] In order to solve the problem that most of the prior arts are carried out in a drying box and a humidifying box respectively, so that loess needs to be switched between the two devices, and the loess is exposed to the external environment during the switching process, which not only affects the accuracy of the result, the present application sets up an insulation block, which is used to isolate the test box into two chambers, and the two chambers are used for drying and humidification respectively, and two storage items are used to store loess, and the two storage items are switched in position under the rotation of the rotating column to realize a dry-wet cycle test, so that the loess can be quickly switched between drying and humidification, and the influence of the external environment on the loess during the switching process can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the loess dry-wet cycle test machine provided for this application;

[0021] Figure 2 Provided for this application Figure 1 A rear view structural diagram of ;

[0022] Figure 3 Provided for this application Figure 2 Schematic diagram of the structure viewed from above;

[0023] Figure 4 A schematic diagram of the structure of the rotating column provided for this application;

[0024] Figure 5 A schematic diagram of the structure of the rotating column provided for this application;

[0025] Figure 6 A schematic diagram of a top-down cross-sectional structure of a rotating column provided in the present application;

[0026] Figure 7 A schematic diagram of the structure of the support frame provided in this application.

[0027] Indicated in the figure:

[0028] 1. Test chamber; 101. Chamber door; 2. Insulation block; 201. Rotating column; 202. First motor; 203. Side groove; 204. Accommodating groove; 205. Support box; 206. Gear; 207. Slide; 208. Rack; 209. Second motor; 210. Sealing plate; 211. Support frame; 212. Placement box; 213. Rotating handle; 3. Water pump; 301. Delivery pipe; 302. Nozzle; 4. Dryer; 5. Water collecting box. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As described in the background technology, in the prior art, when conducting dry and wet tests, most of them are carried out in a drying box and a humidifying box respectively, so that the loess needs to be switched between the two devices. During the switching process, the loess is exposed to the external environment, which not only affects the accuracy of the results, but also requires the separate operation and management of the two devices. At the same time, it is also necessary to ensure that the conversion process between the two devices will not cause damage or impact on the loess samples, which not only increases the complexity of the test, but may also increase the cost of the test.

[0031] In order to solve this technical problem, the utility model provides a loess dry-wet cycle testing machine.

[0032] Specifically, please refer to Figure 1-Figure 7 , loess dry-wet cycle testing machine specifically includes:

[0033] A test box 1, in which a temperature-insulating block 2 is fixedly installed, the temperature-insulating block 2 is used to isolate the test box 1 into two chambers, and the two chambers are used for drying and humidification respectively, and a rotating column 201 is rotatably connected between the temperature-insulating block 2 and the bottom of the test box 1, and two storage parts are arranged on the rotating column 201, both of which are used for storing loess, and the two storage parts can realize position switching under the rotation of the rotating column 201 to realize dry-wet cycle.

[0034] The loess dry-wet cycle testing machine provided by the utility model has an insulating block 2, which is used to isolate the inside of the test box 1 into two chambers, and the two chambers are respectively used for drying and humidifying. The two storage components are both used to store loess, and the two storage components can switch their positions under the rotation of the rotating column 201 to realize the dry-wet cycle test, so that the loess can be quickly switched between drying and humidification, and the influence of the external environment on the loess during the switching process can be reduced.

[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] For examples, please refer to Figure 1-Figure 7 A loess dry-wet cycle testing machine includes a test box 1, in which a thermal insulation block 2 is fixedly installed, the thermal insulation block 2 is used to isolate the test box 1 into two chambers, and the two chambers are used for drying and humidification respectively, and a rotating column 201 is rotatably connected between the thermal insulation block 2 and the bottom of the test box 1, and two storage pieces are arranged on the rotating column 201, both of which are used to store loess, and the two storage pieces are switched in position under the rotation of the rotating column 201 to realize dry-wet cycle, so that the loess can be quickly switched between drying and humidification, and the influence of the external environment on the loess during the switching process can be reduced.

[0039] Further, such as Figure 1-Figure 4 As shown, a first motor 202 is fixedly installed on the top of the test box 1, and the output shaft of the first motor 202 passes through the test box 1 and the insulation block 2 in sequence and is fixedly connected to the top of the rotating column 201, and sealed bearings are provided at the connection between the output shaft of the first motor 202 and the test box 1 and the insulation block 2. The rotating column 201 can be driven to rotate by the first motor 202 to switch the position between the two storage components. The test box 1, the insulation block 2 and the rotating column 201 are all made of existing insulation materials.

[0040] Further, such as Figure 3 As shown, the bottom end of the rotating column 201 passes through the test box 1 and extends to the bottom of the test box 1, and a sealed bearing is also provided at the connection between the outer surface of the rotating column 201 and the bottom wall of the test box 1. The sealed bearing can connect the rotating column 201 and the test box 1 and ensure the rotation of the rotating column 201.

[0041] Further, such as Figure 4-Figure 7 As shown, the storage component includes a receiving groove 204 opened in the rotating column 201 and a side groove 203 corresponding to the position of the receiving groove 204, a support box 205 is slidably connected to the inner side of the receiving groove 204, a sealing plate 210 used in conjunction with the side groove 203 is fixedly connected to one side of the support box 205, a support frame 211 is fixedly installed in the support box 205, and a placement box 212 located above the support frame 211 is placed in the support box 205, a rotating handle 213 is hinged on the top of the placement box 212, the support box 205 can be telescopically moved in the receiving groove 204, the placement box 212 is used to place loess, and the setting of the rotating handle 213 can facilitate the placement and removal of the placement box 212.

[0042] Furthermore, a driving part is provided between the rotating column 201 and the two storage members, and the driving part is used to drive the support box 205 to move, thereby being able to improve the position of the support box 205 .

[0043] Further, such as Figure 3 and Figure 6 As shown, the driving part includes a second motor 209 installed at the bottom of the rotating column 201, the output shaft of the second motor 209 penetrates into the rotating column 201 and is fixedly connected with a gear 206, both sides of the gear 206 are meshedly connected with racks 208, one end of the rack 208 extends into the receiving groove 204 and is fixedly connected to the support box 205, the second motor 209 can drive the two support boxes 205 to move through the mutual cooperation of the gear 206 and the two racks 208, so that the support box 205 can be retracted into the receiving groove 204 or extended from the receiving groove 204, and the support box 205 enters the receiving groove 204 when the rotating column 201 rotates, so that the humidification chamber of the test box 1 and the drying chamber of the test box 1 will not be connected during the switching process, thereby reducing the interference between the two chambers.

[0044] Further, such as Figure 6 As shown, a slide groove 207 is provided at the bottom of the inner cavity of the accommodating groove 204 , and a rack 208 is slidably connected in the slide groove 207 . The setting of the slide groove 207 provides the required space for the movement of the rack 208 .

[0045] Further, such as Figure 1 and Figure 4 As shown, a water pump 3 is installed at the bottom of the test box 1, and the output end of the water pump 3 is connected to a delivery pipe 301. One end of the delivery pipe 301 penetrates into the test box 1 and is fixedly connected to a nozzle 302. The nozzle 302 is located in the humidification chamber of the test box 1. The water pump 3 can spray water into the humidification chamber of the test box 1 through the delivery pipe 301 and the nozzle 302, thereby humidifying.

[0046] Further, such as Figure 1 As shown, a dryer 4 is embedded on the top of the test box 1 . The position of the dryer 4 corresponds to the drying chamber of the test box 1 . The drying chamber of the test box 1 can be heated by the dryer 4 .

[0047] Further, such as Figure 1 and Figure 4 As shown, both sides of the test box 1 are provided with doors 101 by hinges, and a water collecting box 5 is placed in the test box 1 below the nozzle 302, and the water collecting box 5 is used to collect excess water.

[0048] The use process of the loess dry-wet cycle testing machine provided by the utility model is as follows:

[0049] Open the box door 101, place the loess in the placement box 212 and then close the box door 101. The input end of the first motor 202 is connected to the water source. The water pump 3 can spray water into the humidification chamber of the test box 1 through the delivery pipe 301 and the nozzle 302 to humidify. The drying chamber of the test box 1 can be heated by the dryer 4. When switching, the second motor 209 drives the rack 208 to move through the gear 206 so that the support box 205 enters the receiving groove 204, and the sealing plate 210 is plugged into the side groove 203 to seal the receiving groove 204. The first motor 202 drives the rotating column 201 to rotate so that the positions of the two support boxes 205 are switched, and then the second motor 209 drives the rack 208 to move through the gear 206 so that the support box 205 extends out of the receiving groove 204. The dry-wet cycle test of loess can be carried out by cyclically switching the positions of the two support boxes 205.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A loess dry-wet cycle testing machine, characterized in that: The invention comprises a test box (1), wherein a temperature-insulating block (2) is fixedly installed in the test box (1), wherein the temperature-insulating block (2) is used to isolate the test box (1) into two chambers, wherein the two chambers are used for drying and humidifying respectively, and a rotating column (201) is rotatably connected between the temperature-insulating block (2) and the bottom of the test box (1), wherein two storage parts are arranged on the rotating column (201), wherein both storage parts are used for storing loess, and the two storage parts can switch their positions under the rotation of the rotating column (201) to realize a dry-wet cycle.

2. The loess dry-wet cycle testing machine according to claim 1, characterized in that: A first motor (202) is fixedly mounted on the top of the test box (1); an output shaft of the first motor (202) passes through the test box (1) and the thermal insulation block (2) in sequence and is fixedly connected to the top of the rotating column (201); and sealed bearings are provided at the connection points between the output shaft of the first motor (202) and the test box (1) and the thermal insulation block (2).

3. The loess dry-wet cycle testing machine according to claim 2, characterized in that: The bottom end of the rotating column (201) passes through the test box (1) and extends to the bottom of the test box (1), and a sealed bearing is also provided at the connection between the outer surface of the rotating column (201) and the bottom wall of the test box (1).

4. The loess dry-wet cycle testing machine according to claim 3, characterized in that: The storage component comprises a receiving groove (204) provided in a rotating column (201) and a side groove (203) corresponding to the position of the receiving groove (204); a support box (205) is slidably connected to the inner side of the receiving groove (204); a sealing plate (210) used in conjunction with the side groove (203) is fixedly connected to one side of the support box (205); a support frame (211) is fixedly installed in the support box (205); a placement box (212) located above the support frame (211) is placed in the support box (205); and a rotating handle (213) is hinged on the top of the placement box (212).

5. The loess dry-wet cycle testing machine according to claim 4, characterized in that: A driving part is provided between the rotating column (201) and the two storage members, and the driving part is used to drive the supporting box (205) to move.

6. The loess dry-wet cycle testing machine according to claim 5, characterized in that: The driving unit comprises a second motor (209) installed at the bottom of the rotating column (201), the output shaft of the second motor (209) penetrates into the rotating column (201) and is fixedly connected to a gear (206), both sides of the gear (206) are meshedly connected to a rack (208), one end of the rack (208) extends into the accommodating groove (204) and is fixedly connected to the support box (205).

7. The loess dry-wet cycle testing machine according to claim 6, characterized in that: A sliding groove (207) is provided at the bottom of the inner cavity of the accommodating groove (204), and the rack (208) is slidably connected in the sliding groove (207).

8. The loess dry-wet cycle testing machine according to claim 7, characterized in that: A water pump (3) is installed at the bottom of the test box (1); the output end of the water pump (3) is connected to a delivery pipe (301); one end of the delivery pipe (301) penetrates into the test box (1) and is fixedly connected to a nozzle (302); the nozzle (302) is located in the humidification chamber of the test box (1).

9. The loess dry-wet cycle testing machine according to claim 8, characterized in that: A dryer (4) is also embedded on the top of the test box (1), and the position of the dryer (4) corresponds to the drying chamber of the test box (1).

10. The loess dry-wet cycle testing machine according to claim 9, characterized in that: Box doors (101) are installed on both sides of the test box (1) via hinges, and a water collection box (5) located below the spray head (302) is also placed in the test box (1).

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