CN114541496A - Anti-pulling loading model test box - Google Patents
Anti-pulling loading model test box Download PDFInfo
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- CN114541496A CN114541496A CN202210424847.7A CN202210424847A CN114541496A CN 114541496 A CN114541496 A CN 114541496A CN 202210424847 A CN202210424847 A CN 202210424847A CN 114541496 A CN114541496 A CN 114541496A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of civil engineering, and discloses an anti-pulling loading model test box which comprises a test box main body and a positioning switching assembly, wherein a lever assembly is slidably assembled at the upper end of the test box main body, a first sliding assembly for stacking weights and a second sliding assembly for connecting a model pile are respectively slidably assembled at two ends of the lever assembly, and the first sliding assembly comprises an inner sliding block and an independent sliding piece. This resistance to plucking load model test case, carry out resistance to plucking load test through lever principle, second sliding assembly can slide and carry out the location connection to the model stake to different positions, when location switch assembly assembled independent slider and interior slider together, the power arm of lever subassembly, the resistance arm keeps isometric so that carry out tensile calculation, separate independent slider and interior slider through location switch assembly when weight is not enough, the power arm of lever subassembly can be adjusted to the longest state, furthest reduces the required power of pulling model stake.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to an uplift loading model test box.
Background
Construction engineering is an important component of urban construction, and foundation pit engineering is a part of construction engineering, and the application of the construction engineering to various types of engineering piles is particularly wide nowadays, especially in the aspects of foundation pit support and foundation treatment. In order to research the mechanical properties of different types of piles, related tests are necessary, and considering that field tests are often very expensive and have more uncontrollable factors, an indoor model pile test becomes one of the available methods to choose, and in the indoor model pile test, a plurality of methods for applying load to the pile top are generally generated through loading equipment and a test device.
The Chinese patent with the application number of CN201610300450.1 discloses a pressing and pulling comprehensive indoor experimental pile model experimental device, but the adoption of the pressing mode can not save labor, the pulling of the model pile can be realized only by the fact that the gravity of a weight-applying weight is equal to the pulling force required by the model pile, when the device is actually used, the pulling force required by the model pile is generally very large, the test can be completed only by matching weights with enough weight, the material and time are consumed, and the unnecessary burden of the test is increased; in addition, the position of the foundation pile in actual engineering is varied, and the device can only load the model pile at a fixed position, so that the simulation limitation is large.
Chinese patent No. CN201510288948.6 proposes a lever loading system and an assembling method, but the lengths of the power arm and the resistance arm of the lever of the loading system are fixed, and the tension force that the weight can provide cannot be increased by adjusting the length of the force arm when the weight is limited.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the anti-pulling loading model test box which has the advantages that model piles at different positions in the test box can be positioned and connected, the length of the power arm of the lever can be adjusted to adjust the tensile force when the weight is insufficient, and the like, and the problems that the model piles at fixed positions can only be tested, and the tensile force cannot be adjusted due to the fixed lengths of the power arm and the resistance arm in the prior art are solved.
(II) technical scheme
In order to solve the technical problems that the prior art can only test the model pile at a fixed position, and the lengths of the power arm and the resistance arm are fixed, so that the tension cannot be adjusted, the invention provides the following technical scheme:
an anti-pulling loading model test box comprises a test box main body and a positioning switching assembly, wherein a lever assembly is slidably assembled at the upper end of the test box main body, and a first sliding assembly for stacking weights and a second sliding assembly for connecting a model pile are slidably assembled at two ends of the lever assembly respectively;
the first sliding assembly comprises an inner sliding block and an independent sliding piece, and the inner sliding block and the second sliding assembly synchronously slide in the opposite direction or the reverse direction all the time;
when the independent sliding piece and the inner sliding block are assembled together through the positioning switching assembly, the power arm and the resistance arm of the lever assembly are kept equal in length so as to be convenient for calculating the tensile force;
when the independent sliding piece is separated from the inner sliding block through the positioning switching assembly and fixed at the end part of the lever assembly, the power arm of the lever assembly is adjusted to be longest so as to reduce required power.
Preferably, the upper end of the test box main body is provided with a bearing assembly, the bearing assembly comprises a first sliding seat, a one-way thread lead screw and a first operating handle, the lever assembly comprises a connecting slide block and a lever, the one-way thread lead screw is assembled inside the first sliding seat in a rotating mode, the first operating handle is fixedly installed at one end of the one-way thread lead screw, the connecting slide block is assembled inside the first sliding seat in a sliding mode and in threaded fit with the one-way thread lead screw, and the middle of the lower side of the lever is assembled on the connecting slide block in a rotating mode.
Preferably, the independent sliding part comprises a first sliding block and a tray, the first sliding block is sleeved on the outer side of the inner sliding block in a sliding manner, a first steel strand is fixedly connected to the lower side of the first sliding block, the tray is arranged at the tail end of the first steel strand, and the tray is used for placing the weight;
the second sliding assembly comprises a second sliding block, a tension sensor and a hook, a second steel strand is fixedly connected to the lower side of the second sliding block, and the tension sensor and the hook are connected to the second steel strand.
Preferably, the lever assembly further comprises a bidirectional threaded screw rod and a second operating handle, the bidirectional threaded screw rod is rotatably assembled inside the lever, and the second operating handle is fixedly installed at one end of the bidirectional threaded screw rod;
the first sliding block and the second sliding block are in sliding fit with the inner wall of the lever, and the inner sliding block and the second sliding block are assembled at the two-way threads on two sides of the two-way thread screw rod respectively through threads.
Preferably, an assembly groove is formed in the upper side of the inner slide block, an assembly hole is formed in the upper side of the first slide block, a sliding hole is formed in the upper side of the power end of the lever, and an end portion positioning hole is formed in one end, far away from the resistance end of the lever, of the sliding hole;
the positioning switching assembly comprises a positioning block, the positioning block is in sliding fit with the sliding hole, the assembly of the inner sliding block and the first sliding block is achieved when the positioning block is sleeved among the assembly groove, the assembly hole and the sliding hole, and the first sliding block is separated from the inner sliding block and fixed at the end part of the power end of the lever when the positioning block is sleeved among the assembly hole and the end part positioning hole.
Preferably, the independent sliding part further comprises side plates and a top plate, the side plates are fixedly arranged on two sides of the upper surface of the first sliding block, the top plate is arranged between the two side plates, and the side plates are in sliding fit with the sliding holes;
the positioning switching assembly further comprises a rotating rod, a handle, a pressing plate and an elastic connecting piece, the rotating rod is fixedly connected to the upper side of the positioning block, the handle is fixedly assembled at the top end of the rotating rod and located on the upper side of the top plate, the pressing plate is connected with the top plate through the elastic connecting piece, and the rotating rod penetrates through the pressing plate and the top plate movably.
Preferably, the assembly holes comprise a first through hole and a second through hole, the centers of which are overlapped, the width of the sliding hole is equal to that of the positioning block, the assembly grooves and the first through hole are consistent with the contour of the positioning block, and the second through hole and the end positioning hole are consistent with the contour of the positioning block after rotating around the vertical central shaft of the positioning block by 90 degrees.
Preferably, the test box main body comprises a box frame and a model box, the box frame comprises a base, steel frames and stiffening beams, the steel frames are welded on two sides of the upper surface of the base, and the stiffening beams are welded on one of the steel frames;
the model case includes the organic glass board, can dismantle steel sheet, fixed steel sheet, the organic glass board with fixed steel sheet fixed assembly respectively is in between the steelframe, can dismantle the steel sheet respectively and be in on the stiffening beam, the organic glass board, can dismantle steel sheet, fixed steel sheet inboard evenly are provided with soil pressure sensor respectively.
Preferably, the tank bracket still includes and extends seat and gusset bar, it sets up to extend the seat the base is provided with the one side of dismantling the steel sheet, the steelframe top with it has the gusset bar to extend to weld between the seat.
(III) advantageous effects
Compared with the prior art, the invention provides an anti-pulling loading model test box which has the following beneficial effects:
1. this resistance to plucking load model test case, the model stake of burying underground in the foundation soil with the gravity pulling of weight through lever principle, resistance to plucking load test carries out, the second slip subassembly can slide to different positions and carry out the location connection to the model stake, when the location switching module assembles together independent slider and interior slider, the power arm of lever subassembly, the resistance arm keeps isometric so that carry out tensile calculation, separate independent slider and interior slider through the location switching module when weight is not enough, the power arm of lever subassembly can be adjusted to the longest state, furthest reduces the required power of pulling model stake, save the weight quantity.
2. This resistance to plucking loading model test case can detect the extrusion pressure degree that each position foundation soil received in the model case when carrying out resistance to plucking loading test through soil pressure sensor, to the destruction process of foundation soil on every side when can observing the model pile through the organic glass board and pull out, and the staff of being convenient for records test data comprehensively.
3. This resistance to plucking loading model proof box can dismantle the steel sheet through the setting and be convenient for the staff layering to experimental soil with fill and sample, has greatly made things convenient for layering compaction and the later stage to the sample of the soil body of experimental soil with.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded view of a portion of the assembly of the present invention;
FIG. 3 is an exploded view of the lever assembly of the present invention;
FIG. 4 is a partial cross-sectional view of a portion of the assembly of the elastic connection unit of the present invention in a natural tension state;
FIG. 5 is an exploded view of the first slide assembly of the present invention;
FIG. 6 is a partial cross-sectional view of a portion of the assembly of the flexible connection unit of the present invention in a fully contracted condition;
FIG. 7 is a partial cross-sectional view of the inner slide and first slide of the present invention in an assembled state;
FIG. 8 is a partial cross-sectional view of the inner slide and first slide of the present invention in a separated state;
FIG. 9 is a schematic structural diagram of the main body of the test box of the present invention.
In the figure: 1. a test box main body; 11. a box frame; 111. a base; 112. a steel frame; 113. a stiffening beam; 114. an extension base; 115. a reinforcing rod; 12. a model box; 121. an organic glass plate; 122. a detachable steel plate; 123. fixing a steel plate; 2. a load bearing assembly; 21. a first slider; 22. a one-way threaded lead screw; 23. a first operation handle; 3. a lever assembly; 31. connecting the sliding block; 32. a lever; 321. a slide hole; 322. end positioning holes; 33. a bidirectional threaded screw rod; 34. a second operating handle; 4. a first slide assembly; 41. an inner slide block; 411. assembling a groove; 42. a first slider; 421. an assembly hole; 4211. a first through hole; 4212. a second through hole; 43. a tray; 44. a side plate; 45. a top plate; 5. a second slide assembly; 51. a second slider; 52. a tension sensor; 53. hooking; 6. a model pile; 7. a weight; 8. positioning a switching component; 81. positioning blocks; 82. a rotating rod; 83. a grip; 84. pressing a plate; 85. an elastic connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 4, a resistance to plucking load model test box comprises a test box main body 1 and a positioning switching assembly 8, wherein a lever assembly 3 is slidably assembled at the upper end of the test box main body 1, and a first sliding assembly 4 for stacking weights 7 and a second sliding assembly 5 for connecting model piles 6 are slidably assembled at two ends of the lever assembly 3 respectively, so that the position of the second sliding assembly 5 can be adjusted transversely or longitudinally, model piles 6 embedded at different positions in foundation soil in the test box main body 1 can be positioned and connected, and the model piles 6 embedded in the foundation soil in the test box main body 1 are pulled by the gravity of the weights 7 according to the lever principle to perform resistance to plucking load test;
the first sliding assembly 4 comprises an inner sliding block 41 and an independent sliding piece, and the inner sliding block 41 and the second sliding assembly 5 synchronously slide in the opposite direction or the reverse direction all the time;
when the independent sliding part and the inner sliding block 41 are assembled together through the positioning switching component 8, the whole first sliding component 4 synchronously slides in the opposite direction or the reverse direction when the second sliding component 5 slides to the position above the position corresponding to the model pile 6, so that the power arm and the resistance arm of the lever component 3 are kept equal in length so as to calculate the pulling force;
when the independent sliding part is separated from the inner sliding block 41 through the positioning switching component 8 and fixed at the end part of the lever component 3, the independent sliding part does not synchronously slide along with the second sliding component 5, and at the moment, the power arm of the lever component 3 is adjusted to be longest, so that the power required by pulling the model pile 6 can be reduced to the maximum extent, and the using amount of weights 7 is saved.
Further, referring to fig. 1-3, the upper end of the test box main body 1 is provided with a bearing assembly 2, the bearing assembly 2 includes a first slide base 21, a one-way threaded lead screw 22, and a first operation handle 23, the lever assembly 3 includes a connection slider 31 and a lever 32, the one-way threaded lead screw 22 is rotatably assembled inside the first slide base 21, the first operation handle 23 is fixedly installed at one end of the one-way threaded lead screw 22, the connection slider 31 is slidably assembled inside the first slide base 21 and is in threaded fit with the one-way threaded lead screw 22, so that the one-way threaded lead screw 22 can be driven to rotate by manually shaking the first operation handle 23, the connection slider 31 screwed on the one-way threaded lead screw 22 slides along the inner wall of the first slide base 21, and further drives the whole lever assembly 3 to slide along the direction of the first slide base 21, the middle part of the lower side of the lever 32 is fixedly connected with a rotation shaft, the upper side of the connection slider 31 is fixedly connected with an installation shaft seat, the rotating shaft is rotatably assembled on the mounting shaft seat.
Further, referring to fig. 2 and 5, the independent sliding member includes a first sliding block 42 and a tray 43, the first sliding block 42 is slidably sleeved outside the inner sliding block 41, a first steel strand is fixedly connected to the lower side of the first sliding block 42, the tray 43 is arranged at the end of the first steel strand, and the tray 43 is used for placing the weight 7;
second sliding component 5 includes second slider 51, force sensor 52 and couple 53, second slider 51 downside fixedly connected with second steel strand wires, force sensor 52 and couple 53 are all connected on the second steel strand wires, fixed mounting can collude the lug on 6 tops of model pile at the couple 53 of second steel strand wires tip, force sensor 52 can be by the real-time tensile force numerical value that continuous in-process detection model pile 6 received of constantly pulling up at model pile 6, be convenient for the staff record corresponding data in the different stages of resistance to plucking loading test.
Referring to fig. 2-4, the lever assembly 3 further includes a two-way screw 33, and a second operating handle 34, the two-way screw 33 is rotatably assembled inside the lever 32, and the second operating handle 34 is fixedly installed at one end of the two-way screw 33;
Further, referring to fig. 4 and 5, an assembly slot 411 is formed on the upper side of the inner slider 41, an assembly hole 421 is formed on the upper side of the first slider 42, a sliding hole 321 is formed on the upper side of the power end of the lever 32, and an end positioning hole 322 is formed at one end of the sliding hole 321, which is far away from the resistance end of the lever 32;
the positioning switching assembly 8 comprises a positioning block 81, the positioning block 81 is in sliding fit with the sliding hole 321, and the positioning block 81 is sleeved among the assembly groove 411, the assembly hole 421 and the sliding hole 321 to realize the assembly of the inner slide block 41 and the first slide block 42, so that when the second operating handle 34 is shaken to drive the inner slide block 41 and the second slide block 51 to synchronously slide in the opposite direction or in the reverse direction, the first slide block 42 and the inner slide block 41 keep synchronous and slide in the same direction, and further the power arm and the resistance arm of the lever 32 keep equal length so as to calculate the tensile force;
when the positioning block 81 is sleeved between the assembling hole 421 and the end positioning hole 322, the first slider 42 is separated from the inner slider 41 and fixed at the end of the power end of the lever 32, so that the first slider 42 does not slide synchronously with the inner slider 41, and the power arm of the lever 32 is adjusted to be longest, thereby maximally reducing the power required for pulling the model pile 6 and saving the amount of the weights 7.
Further, referring to fig. 3-6, the independent sliding member further includes side plates 44 and a top plate 45, the side plates 44 are fixedly mounted on two sides of the upper surface of the first sliding block 42, the top plate 45 is disposed between the two side plates 44, and the side plates 44 are in sliding fit with the sliding holes 321;
the positioning switching assembly 8 further comprises a rotating rod 82, a handle 83, a pressing plate 84 and an elastic connecting piece 85, the rotating rod 82 is fixedly connected to the upper side of the positioning block 81, the handle 83 is fixedly assembled at the top end of the rotating rod 82 and located on the upper side of the top plate 45, the pressing plate 84 is connected with the top plate 45 through the elastic connecting piece 85, and the rotating rod 82 movably penetrates through the pressing plate 84 and the top plate 45. Specifically, the elastic connection element 85 may be a spring, when the elastic connection element 85 is in a natural stretching state, the lower surface of the pressing plate 84 is attached to the upper surface of the positioning block 81 and the upper surface of the lever 32, and the lower surface of the positioning block 81 coincides with the bottom surface inside the assembly slot 411; when the elastic connection member 85 is in the fully contracted state and the lower surface of the pressing plate 84 is attached to the upper surface of the positioning block 81, the lower surface of the positioning block 81 is not lower than the upper surface of the lever 32.
Referring to fig. 3-6, the assembly hole 421 includes a first through hole 4211 and a second through hole 4212, the center of which is coincident with each other, the width of the sliding hole 321 is equal to the width of the positioning block 81, the assembly slot 411 and the first through hole 4211 are identical to the contour of the positioning block 81, and the second through hole 4212 and the end positioning hole 322 are identical to the contour of the positioning block 81 rotated by 90 ° around the vertical central axis thereof, so that when the inner slider 41 and the first slider 42 are in the combined state (see fig. 7), the positioning block 81 is sequentially sleeved into the sliding hole 321, the first through hole 4211 and the assembly slot 411, the rotating rod 82 and the positioning block 81 are sequentially driven to ascend by pulling the handle 83 upward, the pressing plate 84 can be pulled upward, the elastic connecting element 85 is contracted until the elastic connecting element 85 is in the completely contracted state, at this time, there is no connection between the inner slider 41 and the first slider 42, and the positioning block 81 is separated from the limit of the sliding hole 321, the handle 83 is rotated to drive the positioning block 81 to rotate by 90 ° and pull the positioning block 81 until the positioning block 81 moves to the end 322 Just above, at this time, the handle 83 is released to reset each component of the positioning switching assembly 8, the positioning block 81 can be just sleeved into the end positioning hole 322 and the second through hole 4212 in sequence, so that the first slider 42 is fixed at the end of the power end of the lever 32, and the power arm of the lever 32 is adjusted to the longest state (see fig. 8).
Further, referring to fig. 9, the test box body 1 includes a box frame 11 and a model box 12, the box frame 11 includes a base 111, a steel frame 112, and stiffening beams 113, the steel frame 112 is welded on two sides of the upper surface of the base 111, and one of the steel frames 112 is welded with the stiffening beam 113;
Further, referring to fig. 9, the box frame 11 further includes an extending base 114 and a reinforcing rod 115, the extending base 114 is disposed on one side of the base 111 where the detachable steel plate 122 is disposed, the reinforcing rod 115 is welded between the top end of the steel frame 112 and the extending base 114, and the first sliding base 21 is fixedly mounted on the upper end of the steel frame 112, so that a triangular stable structure is formed by the extending base 114, the reinforcing rod 115, and the steel frame 112, and the supporting effect of the first sliding base 21 is reinforced.
The working principle is as follows: when the device is used, the model pile 6 is buried in the foundation soil in the model box 12, the hook 53 is hooked with the lifting lug at the top end of the model pile 6, the first operating handle 23 is manually shaken to drive the one-way threaded screw rod 22 to rotate, the connecting slide block 31 screwed on the one-way threaded screw rod 22 slides along the inner wall of the first slide seat 21, and the whole lever assembly 3 is driven to slide along the direction of the first slide seat 21;
manually shaking the second operating handle 34 to drive the two-way threaded screw rod 33 to rotate, so that the inner sliding blocks 41 and the second sliding blocks 51 which are screwed on two sides of the two-way threaded screw rod 33 synchronously slide in the opposite directions or in the opposite directions along the inner wall of the first sliding seat 21 respectively, the positioning blocks 81 are sequentially sleeved among the sliding hole 321, the first through hole 4211 and the assembling groove 411 at first, the inner sliding blocks 41 and the first sliding blocks 42 are in a combined state, so that the first sliding blocks 42 and the second sliding blocks 51 keep synchronously sliding in the opposite directions or in the opposite directions until the second sliding blocks 51 move right above the model pile 6, and the first operating handle 23 and the second operating handle 34 are stopped to operate;
the weights 7 are gradually added into the tray 43 connected to the lower side of the first sliding block 42, the model pile 6 buried in the foundation soil is pulled by the gravity of the weights 7, the uplift loading test is carried out until the model pile 6 is uplifted, and in the process, the power arm and the resistance arm of the lever 32 are equal in length, so that the calculation of the tensile force is facilitated according to the lever principle.
In the test process, if the weight of the prepared weight 7 is not enough to pull up the model pile 6, the handle 83 is pulled upwards to sequentially drive the rotating rod 82 and the positioning block 81 to ascend, the pressing plate 84 is pulled upwards until the elastic connecting piece 85 is in a complete contraction state, at the moment, the inner sliding block 41 is not connected with the first sliding block 42, the handle 83 is rotated to drive the positioning block 81 to rotate by 90 degrees and pull the handle 83 until the positioning block 81 moves right above the end positioning hole 322, then the handle 83 is loosened to reset all the parts of the positioning switching component 8, the positioning block 81 is sequentially sleeved into the end positioning hole 322 and the second through hole 4212, the first sliding block 42 is fixed at the end part of the power end of the lever 32, at the moment, the power arm of the lever 32 is adjusted to be in the longest state, the power required by pulling the model pile 6 can be reduced to the greatest extent, the use amount of the weight 7 is saved, and the test can be favorably completed smoothly.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (9)
1. The utility model provides an anti-pulling loading model test case, includes test case main part (1), location switching module (8), its characterized in that: the upper end of the test box main body (1) is slidably assembled with a lever assembly (3), and two ends of the lever assembly (3) are respectively slidably assembled with a first sliding assembly (4) used for stacking weights (7) and a second sliding assembly (5) used for connecting a model pile (6);
the first sliding assembly (4) comprises an inner sliding block (41) and an independent sliding piece, and the inner sliding block (41) and the second sliding assembly (5) synchronously slide in the opposite direction or the reverse direction all the time;
when the independent sliding part and the inner sliding block (41) are assembled together through the positioning switching assembly (8), the power arm and the resistance arm of the lever assembly (3) are kept equal in length so as to be convenient for calculating the pulling force;
when the independent sliding part is separated from the inner sliding block (41) through the positioning switching component (8) and is fixed at the end part of the lever component (3), the power arm of the lever component (3) is adjusted to be the longest so as to reduce the required power.
2. The uplift loading model test box according to claim 1, wherein: the test box is characterized in that a bearing assembly (2) is arranged at the upper end of the test box main body (1), the bearing assembly (2) comprises a first sliding seat (21), a one-way thread screw rod (22) and a first operating handle (23), the lever assembly (3) comprises a connecting slide block (31) and a lever (32), the one-way thread screw rod (22) is rotatably assembled inside the first sliding seat (21), the first operating handle (23) is fixedly installed at one end of the one-way thread screw rod (22), the connecting slide block (31) is slidably assembled inside the first sliding seat (21) and in threaded fit with the one-way thread screw rod (22), and the middle part of the lower side of the lever (32) is rotatably assembled on the connecting slide block (31).
3. The uplift loading model test box as claimed in claim 2, wherein: the independent sliding part comprises a first sliding block (42) and a tray (43), the first sliding block (42) is sleeved on the outer side of the inner sliding block (41) in a sliding mode, a first steel strand is fixedly connected to the lower side of the first sliding block (42), the tray (43) is arranged at the tail end of the first steel strand, and the tray (43) is used for placing the weight (7);
the second sliding assembly (5) comprises a second sliding block (51), a tension sensor (52) and a hook (53), a second steel strand is fixedly connected to the lower side of the second sliding block (51), and the tension sensor (52) and the hook (53) are connected to the second steel strand.
4. A resistance to plucking load model test chamber as defined in claim 3, wherein: the lever assembly (3) further comprises a bidirectional threaded screw rod (33) and a second operating handle (34), the bidirectional threaded screw rod (33) is rotatably assembled inside the lever (32), and the second operating handle (34) is fixedly installed at one end of the bidirectional threaded screw rod (33);
the first sliding block (42) and the second sliding block (51) are in sliding fit with the inner wall of the lever (32), and the inner sliding block (41) and the second sliding block (51) are assembled at the two-way threads on two sides of the two-way thread screw rod (33) through threads respectively.
5. The uplift loading model test box according to claim 4, wherein: an assembly groove (411) is formed in the upper side of the inner sliding block (41), an assembly hole (421) is formed in the upper side of the first sliding block (42), a sliding hole (321) is formed in the upper side of the power end of the lever (32), and an end portion positioning hole (322) is formed in one end, far away from the resistance end of the lever (32), of the sliding hole (321);
location switching module (8) are including locating piece (81), locating piece (81) with slide hole (321) sliding fit, locating piece (81) cover is established assembly groove (411) assembly hole (421) realize when slide hole (321) between interior slider (41) with the equipment of first slider (42), locating piece (81) cover is established assembly hole (421) when tip locating hole (322) between first slider (42) with interior slider (41) separation is fixed lever (32) power end tip.
6. The uplift loading model test box as claimed in claim 5, wherein: the independent sliding piece further comprises side plates (44) and a top plate (45), the side plates (44) are fixedly arranged on two sides of the upper surface of the first sliding block (42), the top plate (45) is arranged between the two side plates (44), and the side plates (44) are in sliding fit with the sliding holes (321);
the positioning switching assembly (8) further comprises a rotating rod (82), a handle (83), a pressing plate (84) and an elastic connecting piece (85), the rotating rod (82) is fixedly connected to the upper side of the positioning block (81), the handle (83) is fixedly assembled at the top end of the rotating rod (82) and located on the upper side of the top plate (45), the pressing plate (84) is connected with the top plate (45) through the elastic connecting piece (85), and the rotating rod (82) movably penetrates through the pressing plate (84) and the top plate (45).
7. The uplift loading model test box according to claim 6, wherein: the assembling hole (421) comprises a first through hole (4211) and a second through hole (4212) which are overlapped at the center, the width of the sliding hole (321) is equal to that of the positioning block (81), the assembling groove (411) and the first through hole (4211) are consistent with the contour of the positioning block (81), and the second through hole (4212) and the end positioning hole (322) are consistent with the contour of the positioning block (81) after rotating around the vertical central shaft of the positioning block by 90 degrees.
8. The uplift loading model test box according to claim 1, wherein: the test box main body (1) comprises a box frame (11) and a model box (12), the box frame (11) comprises a base (111), steel frames (112) and stiffening beams (113), the steel frames (112) are welded on two sides of the upper surface of the base (111), and the stiffening beam (113) is welded on one of the steel frames (112);
model box (12) include organic glass board (121), can dismantle steel sheet (122), fixed steel sheet (123), organic glass board (121) with fixed steel sheet (123) fixed assembly respectively is in between steelframe (112), can dismantle steel sheet (122) respectively and can dismantle the assembly and be in on stiffening beam (113), organic glass board (121), can dismantle steel sheet (122), fixed steel sheet (123) inboard evenly are provided with soil pressure sensor respectively.
9. The uplift loading model test box according to claim 8, wherein: the box frame (11) further comprises an extension seat (114) and reinforcing rods (115), the extension seat (114) is arranged on one side, provided with detachable steel plates (122), of the base (111), and the reinforcing rods (115) are welded between the top end of the steel frame (112) and the extension seat (114).
Priority Applications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468837A (en) * | 2022-10-31 | 2022-12-13 | 石家庄铁道大学 | Model test device with multifunctional loading mode and test method |
| GB2614408A (en) * | 2022-10-31 | 2023-07-05 | Univ Shijiazhuang Tiedao | Model test box with multifunctional loading method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1283300A1 (en) * | 1985-08-14 | 1987-01-15 | Ростовский инженерно-строительный институт | Apparatus for testing pile by static load |
| CN101532931A (en) * | 2009-04-17 | 2009-09-16 | 中国科学院武汉岩土力学研究所 | Experimental method of simulating dynamic and static load and device thereof |
| CN105862937A (en) * | 2016-05-09 | 2016-08-17 | 东华理工大学 | Pressing and pulling integrated experimental indoor pile model test device |
| CN108301447A (en) * | 2018-04-08 | 2018-07-20 | 山东建筑大学 | Dispersed pressure anchor anchor mechanism visible model testing device and test method |
| CN209198332U (en) * | 2018-12-10 | 2019-08-02 | 巢湖学院 | A kind of home position observation testing machine at linear reciprocating powder lubrication interface |
| CN112816294A (en) * | 2021-03-02 | 2021-05-18 | 郑州大学 | Slope simulation test device and test method |
-
2022
- 2022-04-22 CN CN202210424847.7A patent/CN114541496B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1283300A1 (en) * | 1985-08-14 | 1987-01-15 | Ростовский инженерно-строительный институт | Apparatus for testing pile by static load |
| CN101532931A (en) * | 2009-04-17 | 2009-09-16 | 中国科学院武汉岩土力学研究所 | Experimental method of simulating dynamic and static load and device thereof |
| CN105862937A (en) * | 2016-05-09 | 2016-08-17 | 东华理工大学 | Pressing and pulling integrated experimental indoor pile model test device |
| CN108301447A (en) * | 2018-04-08 | 2018-07-20 | 山东建筑大学 | Dispersed pressure anchor anchor mechanism visible model testing device and test method |
| CN209198332U (en) * | 2018-12-10 | 2019-08-02 | 巢湖学院 | A kind of home position observation testing machine at linear reciprocating powder lubrication interface |
| CN112816294A (en) * | 2021-03-02 | 2021-05-18 | 郑州大学 | Slope simulation test device and test method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468837A (en) * | 2022-10-31 | 2022-12-13 | 石家庄铁道大学 | Model test device with multifunctional loading mode and test method |
| GB2614408A (en) * | 2022-10-31 | 2023-07-05 | Univ Shijiazhuang Tiedao | Model test box with multifunctional loading method |
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