CN211043206U

CN211043206U - Soil freeze-thaw cycle experimental device

Info

Publication number: CN211043206U
Application number: CN201922060487.3U
Authority: CN
Inventors: 马春艳; 白芸; 张宁宁; 薛璐; 朱志红; 高李文; 任孟林
Original assignee: Yulin University
Current assignee: Yulin University
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-07-17
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to a soil freeze thawing cycle experiment technical field just discloses a soil freeze thawing cycle experimental apparatus, the power distribution box comprises a box body, the inner wall fixedly connected with heat insulating layer of box, the top fixedly connected with compressor of box, the front intercommunication of compressor has the annular condenser, the inner wall fixedly connected with baffle of box, the top and the equal fixedly connected with temperature sensor in bottom on inner chamber of box right side, the left side fixedly connected with control box of box, the right side fixedly connected with fan of box, the bottom fixedly connected with heating cabinet on inner chamber of box right side, the left side fixedly connected with servo motor of inner chamber of box bottom. This soil freeze thawing cycle experimental apparatus reciprocates at the in-process of freezing and heating through soil to the purpose of freeze thawing cycle of being convenient for is realized, need not to take out soil, and labour saving and time saving not only, and data when having ensured the experiment facilitate the use, are applicable to various situations.

Description

Soil freeze-thaw cycle experimental device

Technical Field

The utility model relates to a soil freeze-thaw cycle experiment technical field specifically is a soil freeze-thaw cycle experimental apparatus.

Background

The freezing and thawing of soil is a very complex process, which is accompanied by physical, physicochemical and mechanical phenomena and subprocesses, and mainly comprises the processes of moisture and heat transmission, moisture phase change and salt accumulation, according to statistics, 70 percent of the global land area contains frozen soil, 14 percent of which is permanent frozen soil and 56 percent of which is seasonal frozen soil, China is the third large frozen soil country in the world, wherein the distribution area of the perennial frozen soil is 2.068 × 106km2, which accounts for 21.5 percent of the national soil area, the distribution area of the economical frozen soil is very wide, which is 5.137 × 106km2, which accounts for 53.5 percent of the national soil area, and the total area of the perennial frozen soil and the economical frozen soil accounts for about 3/4 percent of the national total area.

Frozen soil is a soil body medium extremely sensitive to temperature, the accumulation of moisture and salinity is followed in the freeze thawing process, and then cause seasonal frozen soil to produce frost heaving and thaw collapse phenomenon, present soil freeze thawing cycle experimental apparatus on the market exists the shortcoming of the freeze thawing cycle of not being convenient for at present, when using, present soil freeze thawing cycle experimental apparatus generally adopts freezing observation earlier, then take out soil thawing and observe once more, not only waste time and energy, also influence the data of experiment simultaneously, be not convenient for use, so it is above-mentioned in order to solve above-mentioned problem to propose above-mentioned soil freeze thawing cycle experimental apparatus.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a soil freeze thawing cycle experimental apparatus possesses the freeze thawing cycle of being convenient for advantage such as, has solved when using, and current soil freeze thawing cycle experimental apparatus generally adopts earlier freezing observation, then takes out soil and unfreezes and observe once more, not only wastes time and energy, also influences the data of experiment simultaneously, the problem of being not convenient for to use.

(II) technical scheme

For the above-mentioned purpose of being convenient for freeze thawing cycle of realization, the utility model provides a following technical scheme: a soil freezing and thawing cycle experimental device comprises a box body, wherein a heat insulation layer is fixedly connected to the inner wall of the box body, a compressor is fixedly connected to the top of the box body, an annular condenser is communicated with the front of the compressor, a partition plate is fixedly connected to the inner wall of the box body, a temperature sensor is fixedly connected to the top and the bottom of the right side of an inner cavity of the box body, a control box is fixedly connected to the left side of the box body, a fan is fixedly connected to the right side of the box body, a heating box is fixedly connected to the bottom of the right side of the inner cavity of the box body, a servo motor is fixedly connected to the left side of the bottom of the inner cavity of the box body, an adjusting box is fixedly connected to the bottom of the inner cavity of the box body, a screw rod is fixedly connected to an output shaft of, the soil testing device is characterized in that a soil placing cup is movably connected to the top of the object placing plate, a soil tester is fixedly connected to the left side of the soil placing cup, telescopic rods are fixedly connected to the left end and the right end of the bottom of the object placing plate, and the bottom of each telescopic rod is fixedly connected with the top of the adjusting box.

Preferably, the left side and the right side of the partition board are both arc-shaped, and through holes matched with the soil placement cups are formed in the partition board.

Preferably, the left end and the right end of the outer surface of the screw rod are fixedly connected with threads in opposite directions, and a thread groove matched with the threads on the outer surface of the screw rod is formed in the sliding block.

Preferably, the telescopic link comprises slide bar, spring and sliding sleeve, the spring is located the bottom of sliding sleeve inner chamber, the top of slide bar is run through and is extended to the outside of sliding sleeve and with sliding sleeve sliding connection.

Preferably, the bottom fixedly connected with backup pad of annular condenser, and the inside of backup pad has seted up the air conditioning export, both ends all communicate with the comdenstion water exit tube about the backup pad.

Preferably, the front of the box body is movably connected with a movable door through a hinge, and the top and the bottom of the front of the movable door are fixedly connected with a cooling fan.

(III) advantageous effects

Compared with the prior art, the utility model provides a soil freeze thawing cycle experimental apparatus possesses following beneficial effect:

1. the soil freezing and thawing cycle experimental device controls the output shaft of the servo motor to rotate positively and reversely through the control box and drives the screw to rotate positively and reversely, the left end and the right end of the outer surface of the screw are fixedly connected with threads in opposite directions, a thread groove matched with the threads on the outer surface of the screw is formed in the slider, the slider and the adjusting box limit the slider to do circular motion along with the screw and enable the two sliders to move towards opposite or back to back, so that the soil placing cup rises and falls, the soil moves up and down in the box body, when the slider moves to the top of the inner cavity of the box body, the compressor and the annular condenser are matched for refrigeration and freeze the soil, when the slider moves to the bottom of the inner cavity of the box body, the fan sends air heated by the electric heating pipe into the bottom of the inner cavity of the box body, the fan heats and defrosts the soil, and meanwhile, the soil detector inspects the soil in the freezing, the device reciprocates at the in-process of freezing and heating through soil to the purpose of freeze thawing cycle of being convenient for is realized to the realization, need not to take out soil, and not only labour saving and time saving, and data when having ensured the experiment facilitate the use, are applicable to various condition.

2. This soil freeze thawing cycle experimental apparatus, through setting up two radiator fan, be convenient for discharge the heat dissipation to the bottom of annular condenser and box inner chamber, through setting up the baffle, can separate the temperature to the bottom and the top of box inner chamber, it is simultaneously also convenient to collect the comdenstion water and discharge, through setting up the heat insulating layer, the loss of the inside temperature of box has been avoided, indirectly ensure when freezing and thawing efficiency, the device overall structure is simple, the heat dissipation is convenient, and separate the temperature effectual, efficiency when having accelerated the experiment, use when easy to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an external view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the device comprises a box body 1, a heat insulation layer 2, a compressor 3, an annular condenser 4, a partition plate 5, a temperature sensor 6, a control box 7, a fan 8, a heating box 9, a servo motor 10, an adjusting box 11, a screw rod 12, a sliding block 13, a connecting rod 14, an object placing plate 15, a soil placing cup 16, a soil detector 17 and a telescopic rod 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a soil freezing and thawing cycle experimental device comprises a box body 1, a heat insulation layer 2 is fixedly connected to the inner wall of the box body 1, a compressor 3 is fixedly connected to the top of the box body 1, the model of the compressor 3 can be C-SC753H8H, the front of the compressor 3 is communicated with an annular condenser 4, the bottom of the annular condenser 4 is fixedly connected with a support plate, a cold air outlet is arranged inside the support plate, the left end and the right end of the support plate are both communicated with condensed water outlet pipes, the annular condenser 4 is positioned at the top of the inner cavity of the box body 1, a partition plate 5 is fixedly connected to the inner wall of the box body 1, the left end and the right end of the back of the box body 1 are both provided with drain holes corresponding to the partition plate 5, a sealing piston is sleeved inside the drain holes, so as to discharge the, the model of the temperature sensor 6 can be WZP-236, the left side of the box body 1 is fixedly connected with a control box 7, the right side of the box body 1 is fixedly connected with a fan 8, the model of the fan 8 can be DFA150, the air inlet pipe of the fan 8 is fixedly connected with a dust screen to prevent dust from entering the box body 1 through the fan 8, the bottom of the right side of the inner cavity of the box body 1 is fixedly connected with a heating box 9, the interior of the heating box 9 is fixedly connected with an electric heating pipe, the front side of the fan 8 is communicated with the right side of the heating box 9, the left side of the bottom of the inner cavity of the box body 1 is fixedly connected with a servo motor 10, the model of the servo motor 10 can be 130ST-M06025, the bottom of the inner cavity of the box body 1 is fixedly connected with an adjusting box 11, the output shaft of the servo motor 10 is fixedly connected with a screw 12, the right side, the left end and the right end of the outer surface of the screw 12 are fixedly connected with threads in opposite directions, a thread groove matched with the threads on the outer surface of the screw 12 is formed in the slider 13, the top of the slider 13 is hinged with a connecting rod 14, the top of the connecting rod 14 is hinged with a storage plate 15, the top of the storage plate 15 is movably connected with a soil storage cup 16, the left side and the right side of the partition plate 5 are both arc-shaped, the inside of the partition plate 5 is provided with a through hole matched with the soil storage cup 16, the left side of the soil storage cup 16 is fixedly connected with a soil tester 17, the model of the soil tester 17 can be TA8671, the left end and the right end of the bottom of the storage plate 15 are both fixedly connected with telescopic rods 18, each telescopic rod 18 comprises a sliding rod, a spring and a sliding sleeve, the spring is positioned at the bottom of the inner cavity of the sliding sleeve, the top of, the front surface of the box body 1 is movably connected with a movable door through a hinge, the top and the bottom of the front surface of the movable door are fixedly connected with a radiating fan, the radiating fan at the top corresponds to the annular condenser 4, the radiating fan at the bottom corresponds to the bottom of the inner cavity of the box body 1, the radiating fan, the compressor 3, the annular condenser 4, the soil tester 17, the temperature sensor 6, the servo motor 10 and the electric heating pipe are in signal connection with the control box 7, the control box 7 controls the output shaft of the servo motor 10 to rotate forward and backward and drives the screw rod 12 to rotate forward and backward, the left end and the right end of the outer surface of the screw rod 12 are fixedly connected with threads in opposite directions, a thread groove matched with the threads on the outer surface of the screw rod 12 is formed in the slide block 13, the slide block 13 and the adjusting box 11 limit the slide block 13 to do circular, thereby realizing the ascending and descending of the soil placing cup 16, and making the soil move up and down in the box body 1, when moving to the top of the inner cavity of the box body 1, the compressor 3 and the annular condenser 4 cooperate to refrigerate, and freeze the soil, when moving to the bottom of the inner cavity of the box body 1, the fan 8 sends the air heated by the electric heating tube from the outside air to the bottom of the inner cavity of the box body 1, and heats and unfreezes the soil, meanwhile, the soil detector 17 inspects the soil in the freezing and freezing processes, the device moves up and down in the freezing and heating processes through the soil, and realizes the purpose of facilitating the freeze-thaw cycle, does not need to take out the soil, not only saves time and labor, but also ensures the data in the experiment, is convenient to use, is applicable to various conditions, and is convenient to discharge and dissipate the heat to the annular condenser 4 and the bottom of the inner, through setting up baffle 5, can separate the temperature to the bottom and the top of 1 inner chambers of box, also conveniently collect the comdenstion water simultaneously and discharge, through setting up heat insulation layer 2, avoided the loss of 1 inside temperatures of box, indirectly ensured efficiency when freezing and thawing, the device overall structure is simple, and the heat dissipation is convenient, and separates warm effectually for efficiency when having tested, use when easy user.

In conclusion, the soil freezing and thawing cycle experimental device controls the output shaft of the servo motor 10 to rotate forward and backward through the control box 7 and drives the screw 12 to rotate forward and backward, the left end and the right end of the outer surface of the screw 12 are fixedly connected with threads in opposite directions, the inside of the slide block 13 is provided with a thread groove matched with the threads on the outer surface of the screw 12, the slide block 13 and the adjusting box 11 limit the slide block 13 to move circularly along with the screw 12 and enable the two slide blocks 13 to move towards opposite or reverse directions, so that the soil placement cup 16 can ascend and descend, soil can move up and down in the box body 1, when the slide block moves to the top of the inner cavity of the box body 1, the compressor 3 and the annular condenser 4 are matched for refrigeration and freeze the soil, when the slide block moves to the bottom of the inner cavity of the box body 1, the fan 8 sends air heated by the electric heating pipe to the bottom, the device is convenient to discharge and dissipate heat to the annular condenser 4 and the bottom of the inner cavity of the box body 1 by arranging two heat dissipation fans, can insulate the bottom and the top of the inner cavity of the box body 1 by arranging the partition plate 5, is convenient to collect and discharge condensed water, avoids the loss of the internal temperature of the box body 1 by arranging the heat insulation layer 2, indirectly guarantees the efficiency during freezing and thawing, has simple integral structure, convenient heat dissipation and good heat insulation effect, and accelerates the efficiency during experiments, use when easily the user has solved when using, and current soil freeze thawing cycle experimental apparatus generally adopts earlier freezing observation, then takes out soil and unfreezes and observe once more, not only wastes time and energy, also influences the data of experiment simultaneously, the problem of not convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a soil freeze-thaw cycle experimental apparatus, includes box (1), its characterized in that: the inner wall of the box body (1) is fixedly connected with a heat insulation layer (2), the top of the box body (1) is fixedly connected with a compressor (3), the front of the compressor (3) is communicated with an annular condenser (4), the inner wall of the box body (1) is fixedly connected with a partition plate (5), the top and the bottom of the right side of the inner cavity of the box body (1) are both fixedly connected with a temperature sensor (6), the left side of the box body (1) is fixedly connected with a control box (7), the right side of the box body (1) is fixedly connected with a fan (8), the bottom of the right side of the inner cavity of the box body (1) is fixedly connected with a heating box (9), the left side of the bottom of the inner cavity of the box body (1) is fixedly connected with a servo motor (10), the bottom of the inner cavity of the box body (, the utility model discloses a soil testing device, including screw rod (12), slider (13) are connected to the equal threaded connection in both ends about screw rod (12) surface, the top of slider (13) articulates there is connecting rod (14), the top of connecting rod (14) articulates there is thing board (15) of putting, the top swing joint who puts thing board (15) has soil to place cup (16), the left side fixedly connected with soil tester (17) of cup (16) are placed to soil, put the equal fixedly connected with telescopic link (18) in both ends about thing board (15) bottom, the bottom of telescopic link (18) and the top fixed connection of regulating box (11).

2. The soil freeze-thaw cycle experimental apparatus according to claim 1, wherein: the left and right sides of baffle (5) all are the arc, the through-hole with soil placement cup (16) looks adaptation is seted up to the inside of baffle (5).

3. The soil freeze-thaw cycle experimental apparatus according to claim 1, wherein: the screw rod (12) surface about both ends equal fixedly connected with opposite direction's screw thread, the thread groove with screw rod (12) surface screw thread looks adaptation is seted up to the inside of slider (13).

4. The soil freeze-thaw cycle experimental apparatus according to claim 1, wherein: the telescopic rod (18) is composed of a sliding rod, a spring and a sliding sleeve, the spring is located at the bottom of an inner cavity of the sliding sleeve, and the top of the sliding rod penetrates through and extends to the outside of the sliding sleeve and is in sliding connection with the sliding sleeve.

5. The soil freeze-thaw cycle experimental apparatus according to claim 1, wherein: the bottom fixedly connected with backup pad of annular condenser (4), and the inside of backup pad has seted up the air conditioning export, both ends all communicate there is the comdenstion water exit tube about the backup pad.

6. The soil freeze-thaw cycle experimental apparatus according to claim 1, wherein: the front of the box body (1) is movably connected with a movable door through a hinge, and the top and the bottom of the front of the movable door are fixedly connected with a cooling fan.