CN218726197U

CN218726197U - Frozen soil triaxial apparatus pressure chamber

Info

Publication number: CN218726197U
Application number: CN202222666321.8U
Authority: CN
Inventors: 徐安花; 王青志; 房建宏; 张振; 马建华; 申鹏; 叶陟天
Original assignee: Qinghai Communications Technical College
Current assignee: Qinghai Communications Technical College
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-03-24
Anticipated expiration: 2032-10-10

Abstract

The utility model belongs to the technical field of triaxial apparatus pressure chamber, especially, be a frozen soil triaxial apparatus pressure chamber, the on-line screen storage device comprises a base, the outer backup pad of the top fixedly connected with of base, just outer backup pad end to end forms a closed area, the top of outer backup pad is connected with the roof, the roof is close to the center and is provided with the hydraulic press, the inside power shaft of hydraulic press meets with the guide rod, through increasing the pull rod structure, through the pulling pull rod, the pull rod is taken out from the slotted hole, can open the roof this moment, loosens the pull rod, and the pull rod has the sliding block to meet, and spring thrust pushes back the pull rod and returns the normal position, wears to establish inside the slotted hole, and the roof can't be opened this moment, for opening the box fast, places or changes the soil sample, through increasing liquid cooling box and thermal-insulated asbestos, keeps the low temperature to the pressure within a definite time, furthest's state of preserving frozen soil sample.

Description

Frozen soil triaxial apparatus pressure chamber

Technical Field

The utility model belongs to the technical field of the triaxial apparatus pressure chamber, concretely relates to frozen soil triaxial apparatus pressure chamber.

Background

Frozen soil refers to various rocks and soils containing ice and having a temperature of zero degrees centigrade or less, and is generally classified into short-term, seasonal and perennial frozen soil, and a triaxial apparatus is an apparatus for performing a shear test of a soil sample, and is used for measuring shear strength of a soil sample such as clay, sandy soil, silt soil and the like.

Through the retrieval, chinese utility model patent with application number 202021487091.3 discloses "a frozen soil triaxial apparatus pressure chamber", it feeds back temperature signal to autonomous system through temperature sensor, and autonomous system receives the temperature operating mode according to the test sample in the pressure chamber, carries out the even invariant that makes the test sample receive the temperature, and this scheme has solved the temperature environment of stable frozen soil sample state, but does not mention and solve and place soil sample fast or change soil sample and improve efficiency.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a frozen soil triaxial apparatus pressure chamber has the quick replacement characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a frozen soil triaxial apparatus pressure chamber, includes the base, the outer backup pad of the top fixedly connected with of base, just outer backup pad end to end forms a closed area, the top of outer backup pad is connected with the roof, the roof is close to the center and is provided with the hydraulic press, the inside power shaft of hydraulic press meets with the guide rod, just guide rod through connection roof, the outer backup pad is close to the lateral wall on top and installs the shell, two the inside second recess of having seted up of shell, the one end of inside one side fixed connection spring of second recess, the other end fixed connection sliding block of spring, the spring ring cover is at the lateral wall of pull rod, the slotted hole has been seted up near the bottom to the roof, pull rod through connection shell and sliding block, and wear to establish the inside at the slotted hole.

As the utility model discloses a preferred technical scheme, the base is close to the center and installs the bottom plate, the top of bottom plate is provided with down the permeable stone, there is soil sample on the top of permeable stone down, the top of soil sample is provided with the permeable stone, the top of going up the permeable stone is provided with the sample cap.

As the utility model discloses a preferred technical scheme, the lateral wall ring cover of soil sample has the liquid cooling case, the one end of liquid cooling bottom end fixed connection inner support board, the other end fixed connection base of inner support board, the liquid cooling room has been seted up to the inside of liquid cooling case, the liquid cooling import pipe is worn to be equipped with to top one side of liquid cooling case, just the liquid cooling import pipe meets with the liquid cooling room, the lateral wall that is close to the front end of liquid cooling import pipe be connected with the fourth valve, first valve is worn to be equipped with to liquid cooling bottom end one side, just first valve meets with the liquid cooling room, the lateral wall that first valve is close to the front end is connected with the liquid cooling outlet pipe.

As the utility model discloses a preferred technical scheme, gas pressure meter is installed on the top right of roof, gas pressure meter's lower extreme through connection is to the inside between pressure, the inlet tube is installed on the top right of roof, inlet tube through connection is to the inside between pressure, just the inlet tube is close to middle lateral wall and is connected with the third valve, the intake pipe is installed on the top left side of roof, intake pipe through connection is to the inside between pressure, the intake pipe is close to middle lateral wall and is connected with the second valve, the internally mounted of base has the outlet pipe, the one end through connection pressure of outlet pipe is between, the outlet pipe is close to the other end and is connected with the fifth valve, the outer backup pad is close to the bottom through connection and is had the outlet duct, the outlet duct is close to middle lateral wall and is connected with the sixth valve, the internally mounted of bottom plate has experimental test tube, experimental test tube one end through connection is to the stone of permeating water under, experimental test tube is connected with the seventh valve by the other end, just experimental test tube through connection outer support.

As the utility model discloses an optimized technical scheme, first recess has been seted up to the inside of outer backup pad, the internally mounted of first recess has thermal-insulated asbestos.

As the utility model discloses a preferred technical scheme, the third recess has been seted up on the top of outer backup pad, the top bulge phase adaptation of third recess and roof, just outer backup pad has the outer wall junction of roof to install sealed subsides.

Compared with the prior art, the beneficial effects of the utility model are that: through increasing the pull rod structure, through the pulling pull rod, the pull rod is taken out from the slotted hole, can open the roof this moment, unclamp the pull rod, and the pull rod has the sliding block to meet, and the spring pushes back the thrust and pushes back the pull rod normal position, wears to establish inside the slotted hole, and the roof can't be opened this moment, for opening the box fast, places or changes the soil sample, through increasing liquid cold box and thermal-insulated asbestos, keeps low temperature to the temperature between the pressure, furthest's the state of preserving frozen soil sample.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

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

fig. 2 is a schematic diagram of an explosion structure in the present invention;

fig. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic structural view of a portion a in fig. 3 according to the present invention;

in the figure: 1. a base; 2. an outer support plate; 3. a top plate; 4. a hydraulic press; 5. a pressure chamber; 6. a sample cap; 7. a force guide rod; 8. laying permeable stones; 9. soil sampling; 10. a base plate; 11. a liquid cooling tank; 12. an inner support plate; 13. a first valve; 14. a liquid cooling outlet pipe; 15. a second valve; 16. an air inlet pipe; 17. a water inlet pipe; 18. a third valve; 19. a gas pressure gauge; 20. a liquid cooling chamber; 21. a liquid cooling inlet pipe; 22. a fourth valve; 23. a first groove; 24. heat insulating asbestos; 25. testing the test tube; 26. a water outlet pipe; 27. a fifth valve; 28. an air outlet pipe; 29. a sixth valve; 30. sealing and pasting; 31. a seventh valve; 32. a housing; 33. a spring; 34. a pull rod; 35. a second groove; 36. a slider; 37. a slot; 38. a third groove; 81. and (6) coating a permeable stone.

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. 1-4, the present invention provides the following technical solutions: a frozen soil triaxial apparatus pressure chamber comprises a base 1, wherein the top end of the base 1 is fixedly connected with an outer support plate 2, the outer support plate 2 is connected end to form a closed area, the top end of the outer support plate 2 is connected with a top plate 3, a hydraulic machine 4 is arranged near the center of the top plate 3, a power shaft in the hydraulic machine 4 is connected with a force guide rod 7, the force guide rod 7 penetrates through the top plate 3, the outer side wall of the outer support plate 2 near the top end is provided with a shell 32, a second groove 35 is formed in the two shells 32, one side of the inner part of the second groove 35 is fixedly connected with one end of a spring 33, the other end of the spring 33 is fixedly connected with a sliding block 36, the spring 33 is sleeved on the outer side wall of a pull rod 34, the bottom end of the top plate 3 is provided with a slotted hole 37, the pull rod 34 penetrates through the shell 32 and the sliding block 36 and penetrates through the inner part of the slotted hole 37, in the embodiment, the force guide rod 7 is pushed downwards by the hydraulic machine 4 and abuts against a sample cap 6, the pull rod 34 is pulled to be pulled out of the slotted hole 37, at the moment, the top plate 3 can be opened, the pull rod 34 is pushed back, and the slotted hole can not be in situ, the slotted hole can be opened, and the sliding block 34 can not be pushed back in the original position.

Specifically, referring to fig. 3, in the embodiment, a bottom plate 10 is installed near the center of the base 1, a lower permeable stone 8 is installed on the top end of the bottom plate 10, a soil sample 9 is installed on the top end of the lower permeable stone 8, an upper permeable stone 81 is installed on the top end of the soil sample 9, and a sample cap 6 is installed on the top end of the upper permeable stone 81.

Specifically, referring to fig. 2-3, in this embodiment, the outer sidewall of the soil sample 9 is sleeved with a liquid cooling box 11, the bottom end of the liquid cooling box 11 is fixedly connected to one end of an inner support plate 12, the other end of the inner support plate 12 is fixedly connected to a base 1, a liquid cooling chamber 20 is disposed inside the liquid cooling box 11, a liquid cooling inlet pipe 21 is disposed on one side of the top end of the liquid cooling box 11 in a penetrating manner, the liquid cooling inlet pipe 21 is connected to the liquid cooling chamber 20, a fourth valve 22 is connected to the outer sidewall of the liquid cooling inlet pipe 21 near the front end, a first valve 13 is disposed on one side of the bottom end of the liquid cooling box 11 in a penetrating manner, the first valve 13 is connected to the liquid cooling chamber 20, a liquid cooling outlet pipe 14 is connected to the outer sidewall of the first valve 13 near the front end, and the liquid cooling box 11 maintains a low temperature for the pressure chamber 5, so as to maintain the frozen soil state to the maximum extent.

Specifically, referring to fig. 1 to 3, in this embodiment, a gas pressure gauge 19 is installed on the right of the top end of a top plate 3, the lower end of the gas pressure gauge 19 is connected to the inside of a pressure chamber 5 in a penetrating manner, a water inlet pipe 17 is installed on the right of the top end of the top plate 3, the water inlet pipe 17 is connected to the inside of the pressure chamber 5 in a penetrating manner, a third valve 18 is connected to the outer side wall of the water inlet pipe 17 close to the middle, an air inlet pipe 16 is installed on the left of the top end of the top plate 3, the air inlet pipe 16 is connected to the inside of the pressure chamber 5 in a penetrating manner, a second valve 15 is connected to the outer side wall of the air inlet pipe 16 close to the middle, a water outlet pipe 26 is installed inside a base 1, one end of the water outlet pipe 26 is connected to the pressure chamber 5 in a penetrating manner, a fifth valve 27 is connected to the water outlet pipe 26 close to the other end, an air outlet pipe 28 is connected to the bottom end of an outer support plate 2 in a penetrating manner, a sixth valve 29 is connected to the outer side wall of the air outlet pipe 28 close to the middle, a testing pipe 25 is installed inside a testing pipe 10, one end of the testing pipe 25 is connected to a lower permeable stone 8, a seventh valve 31 is connected to the testing pipe 25, and a penetrating manner, wherein the testing pipe 25 is connected to an outer support plate 2, and the testing pipe, wherein the testing pipe is a PVC hose.

Specifically, referring to fig. 3, in this embodiment, a first groove 23 is formed inside the outer support plate 2, and heat insulation asbestos 24 is installed inside the first groove 23, so as to achieve the effects of heat insulation and heat preservation.

Specifically, referring to fig. 3, in this embodiment, a third groove 38 is formed at the top end of the outer support plate 2, the third groove 38 is adapted to the protruding portion at the top end of the top plate 3, and the sealing paste 30 is installed at the outer wall joint of the top plate 3 of the outer support plate 2, so as to increase the sealing performance.

The utility model discloses a theory of operation and use flow: the utility model discloses well pulling pull rod 34, pull rod 34 is taken out from slotted hole 37, roof 3 can be opened this moment, loosen pull rod 34, pull rod 34 has sliding block 36 to meet mutually, spring 33 returns thrust and pushes away pull rod 34 home position, wear to establish inside slotted hole 37, roof 3 can't be opened this moment, soil sample 9 places the back, it 81 to permeate water on its upper end to place, guide rod 7 receives pushing and pressing downwards of hydraulic press 4, it offsets with sample cap 6, sample cap 6 is in the upper end of last permeate water stone 81, then through inlet tube 17 to the inside water injection of 5 between pressures, and pass through 16 inside pressurizations to 5 between pressures of intake pipe according to the demonstration of gas pressure table 19, the negative pressure etc., test, through liquid cooling import pipe 21 injected liquid cold to 20 liquid cooling room, advance to the inside of 5 between pressures and maintain the low temperature, furthest's the state of holding frozen soil.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a frozen soil triaxial apparatus pressure chamber, includes base (1), its characterized in that: outer backup pad (2) of top fixedly connected with of base (1), just outer backup pad (2) end to end forms a closed area, the top of outer backup pad (2) is connected with roof (3), roof (3) are close to the center and are provided with hydraulic press (4), the inside power shaft of hydraulic press (4) meets with guide rod (7), just guide rod (7) through connection roof (3), outer backup pad (2) are close to the lateral wall on top and install shell (32), two second recess (35) have been seted up to shell (32) inside, the one end of inside one side fixed connection spring (33) of second recess (35), the other end fixed connection sliding block (36) of spring (33), spring (33) ring cover is at the lateral wall of pull rod (34), slotted hole (37) have been seted up near the bottom in roof (3), pull rod (34) through connection shell (32) and sliding block (36), and wear to establish the inside in slotted hole (37).

2. The frozen soil triaxial apparatus pressure chamber of claim 1, wherein: base (1) is close to the center and installs bottom plate (10), the top of bottom plate (10) is provided with down permeable stone (8), there is soil sample (9) on the top of permeable stone (8) down, the top of soil sample (9) is provided with permeable stone (81), the top of going up permeable stone (81) is provided with sample cap (6).

3. The frozen soil triaxial apparatus pressure chamber of claim 2, wherein: the lateral wall ring cover of soil sample (9) has liquid cooling case (11), the one end of backup pad (12) in liquid cooling case (11) bottom fixed connection, other end fixed connection base (1) of interior backup pad (12), liquid cooling room (20) have been seted up to the inside of liquid cooling case (11), liquid cooling import pipe (21) are worn to be equipped with on top one side of liquid cooling case (11), just liquid cooling import pipe (21) meet with liquid cooling room (20), the lateral wall that liquid cooling import pipe (21) are close to the front end be connected with fourth valve (22), first valve (13) are worn to be equipped with on one side of liquid cooling case (11) bottom, just first valve (13) meet with liquid cooling room (20), the lateral wall that first valve (13) are close to the front end is connected with liquid cooling outlet pipe (14).

4. The frozen soil triaxial apparatus pressure chamber of claim 2, wherein: the gas-pressure testing device is characterized in that a gas-pressure gauge (19) is installed on the right side of the top end of the top plate (3), the lower end of the gas-pressure gauge (19) is connected to the inside of a pressure chamber (5) in a penetrating manner, a water inlet pipe (17) is installed on the right side of the top end of the top plate (3), the water inlet pipe (17) is connected to the inside of the pressure chamber (5) in a penetrating manner, a third valve (18) is connected to the outer side wall of the water inlet pipe (17) close to the middle, a gas inlet pipe (16) is installed on the left side of the top end of the top plate (3), the gas inlet pipe (16) is connected to the inside of the pressure chamber (5) in a penetrating manner, a second valve (15) is connected to the outer side wall of the gas inlet pipe (16) close to the middle, a water outlet pipe (26) is installed inside the base (1), one end of the water outlet pipe (26) is connected to the pressure chamber (5) close to the other end, a fifth valve (27) is connected to the outer supporting plate (2) close to the bottom end in a penetrating manner, a gas outlet pipe (28) is connected to the outer side wall of the middle, a sixth valve (29) close to the outer side wall of the middle, a test pipe (10), a test pipe (25) is connected to a test stone (8), a test stone (31) is connected to the test stone, the test stone (25), and the test tube (25) is connected with the outer support plate (2) in a penetrating way.

5. The frozen soil triaxial apparatus pressure chamber of claim 1, wherein: a first groove (23) is formed in the outer supporting plate (2), and heat insulation asbestos (24) is installed in the first groove (23).

6. The frozen soil triaxial apparatus pressure chamber of claim 1, wherein: third recess (38) have been seted up on the top of outer backup pad (2), third recess (38) and the top bulge looks adaptation of roof (3), just outer backup pad (2) have the outer wall junction of roof (3) to install sealed subsides (30).