CN113340718B - A vertical placement equipment of pressure cell for testing ground mechanical properties in ground experiment - Google Patents

Abstract

The invention discloses a vertical placement device of a pressure box for testing geotechnical characteristics in a geotechnical experiment, which belongs to the technical field of geotechnical engineering testing and comprises a pull rod, wherein the pull rod is arranged in a hollow manner, the bottom end of the pull rod is in threaded connection with a fixing mechanism for fixing the pressure soil box, the bottom end of the fixing mechanism and one side far away from the geotechnical to be tested are both provided with a supporting mechanism for supporting and protecting the pressure soil box, and the top end of the pull rod is detachably connected with a soil drilling mechanism for facilitating placement of the pressure soil box; the distance between the supporting plate and the bottom plate can be adjusted by matching the upper connecting column of the fixing mechanism with the first mounting cylinder and the second mounting cylinder, so that pressure boxes with different sizes can be fixed to avoid moving, and meanwhile, components in the side plates are protected by the telescopic plate and the protection mechanism to prevent the components from being rusted.

Description

A vertical placement equipment of pressure cell for testing ground mechanical properties in ground experiment

Technical Field

The invention belongs to the technical field of geotechnical engineering tests, and particularly relates to a vertical placing device for a pressure box for testing geotechnical characteristics in a geotechnical experiment.

Background

The pressure box is used for measuring medium internal stress in geotechnical engineering, and an instrument for measuring contact stress between sprayed concrete and cast-in-place concrete between surrounding rocks and a supporting structure, in the construction process, the pressure box needs to be placed in the rock and soil in order to measure vertical pressure of a rock and soil body, but in the prior art, most of the pressure boxes are directly placed in the rock and soil body, so that whether the pressure boxes are placed horizontally in the rock and soil body is difficult to ensure, measurement errors can be generated, measurement results are influenced, when the pressure boxes are placed, if the pressure boxes are placed for a long time, rock and soil at the bottom or on the side wall can be loosened, the position of the pressure boxes is changed, the measurement results can be interfered, in addition, in order to conveniently place the pressure boxes, an earth drilling mechanism needs to be used, most of the earth drilling mechanism is separately placed from a fixing mechanism, therefore, the earth drilling mechanism is inconvenient to carry and transport and occupies a place, when the soil needs to be drilled, the soil drilling machine cannot be found, and time is wasted.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide the vertical placing equipment for the pressure box for testing the mechanical characteristics of rock and soil in the rock and soil experiment, and the problem that the pressure box is not stable enough when placed is solved through the mutual matching of the fixing mechanism, the supporting mechanism and the protecting mechanism.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a vertical placement equipment of pressure cell for testing ground mechanical properties in ground experiment, includes the pull rod, the pull rod is the cavity setting, the bottom threaded connection of pull rod has and is used for carrying out the fixed establishment fixed to the pressure soil box, all be equipped with the supporting mechanism who is used for supporting the guard action to the pressure soil box on the bottom of fixed establishment and the one side of keeping away from the ground that awaits measuring, the top of pull rod can be dismantled and be connected with the brill soil mechanism that is used for making things convenient for the pressure soil box to place.

Further, the fixing mechanism comprises a supporting plate, a threaded hole is formed in the top end of the supporting plate and detachably connected with the pull rod, two side plates are arranged on two sides of the bottom end of the supporting plate, mounting grooves are formed in the side plates, cavities are formed in the side plates, first sealing plates are arranged on the periphery of the outer sides of the mounting grooves, a bottom plate is connected between the two mounting grooves, a pressure box is detachably connected between the supporting plate and the bottom plate, connecting columns are arranged on two sides of the pressure box, first threads are arranged on the connecting columns, first mounting cylinders are arranged on the two sides of the pressure box on the supporting plate, second threads are arranged in the first mounting cylinders, a second mounting cylinder is arranged between the first mounting cylinders and the connecting columns, third threads matched with the second threads are arranged on the upper half end of the outer wall of the second mounting cylinder, and fourth threads matched with the first threads are arranged on the lower half end of the inner wall of the second mounting cylinder, the inner side of the side plate is provided with a telescopic plate, the telescopic plate is positioned on two sides of the bottom plate and is connected with the bottom plate, and the outer side of the side plate is provided with a protection mechanism which is positioned in the cavity.

Further, protection machanism is including the lid door, the lid door is mutually supported with the mounting groove, the upper end of lid door is equipped with the second closing plate of mutually supporting with first closing plate all around, the symmetry is equipped with two installation pieces on the bottom of lid door, it is connected with the connecting rod to rotate on the installation piece, be equipped with the spout on the inner wall of cavity, be equipped with the slide in the spout, the connecting rod all rotates with the slide through the connecting axle and is connected.

Further, be equipped with the baffle on inside one side of cavity, the end-to-end connection of baffle and spout, be equipped with the mounting panel on the opposite side of cavity, be equipped with the telescopic link on the mounting panel, the regulation end and the external world of telescopic link are connected, the output of telescopic link is equipped with the push rod, the end and the slide of push rod are connected.

Furthermore, the supporting mechanism comprises a fixing plate, the fixing plate is connected with the bottom end and the side end of the fixing mechanism through bolts respectively, a surrounding plate is arranged on the bottom end of the fixing plate, three regions are arranged in the surrounding plate, a plurality of telescopic springs are arranged in each region, the bottom ends of the telescopic springs are sequentially connected with a first supporting block, a second supporting block and a third supporting block from left to right, fixing piles are arranged at the bottom ends of the first supporting block, the second supporting block and the third supporting block, two sliding columns are symmetrically arranged on two sides of the second supporting block, sliding grooves are formed in one sides, close to the second supporting block, of the first supporting block and one side, close to the second supporting block, of the third supporting block, and the sliding columns are matched with the sliding grooves.

Furthermore, a drying agent is arranged on the inner side of the enclosing plate, and a water baffle is arranged between the telescopic spring and each supporting block.

Further, bore native mechanism including supporting a section of thick bamboo, the bottom of supporting a section of thick bamboo is equipped with the screw thread post, screw thread post and pull rod threaded connection, the top of supporting a section of thick bamboo is connected with driving motor, driving motor is equipped with all around and shakes hands, the bottom of screw thread post is equipped with the axis of rotation, be equipped with buddha's warrior attendant drill bit on the bottom of axis of rotation, the outer wall of supporting a section of thick bamboo is connected with the urceolus through the connecting axle, the urceolus cover is established on the outer wall of supporting a section of thick bamboo, be equipped with on the top of urceolus and gather native dish.

Further, be equipped with on all around of axis of rotation and place the district, it is equipped with a plurality of standing groove in the district to place, the inside top of standing groove is equipped with flexible bracing piece, the inside bottom swing joint of standing groove has broken main sword, the length of broken main sword is less than the length of standing groove, the both sides of broken main sword are equipped with a plurality of broken knives, the top of broken main sword is equipped with the fixed orifices, the fixed orifices cooperates with flexible bracing piece, still be equipped with the one deck between the bottom of urceolus and support section of thick bamboo and block the protection network.

The invention has the beneficial effects that:

1. the distance between the supporting plate and the bottom plate can be adjusted by matching the upper connecting column of the fixing mechanism with the first mounting cylinder and the second mounting cylinder, so that pressure boxes with different sizes can be fixed to avoid moving, and meanwhile, components in the side plates are protected by the telescopic plate and the protection mechanism to prevent the components from being rusted.

2. The cover door is driven to move by the movement of the telescopic rod on the protection mechanism, so that the cover door is matched with the mounting groove to protect the mounting groove, and meanwhile, the cover door is stretched in a cavity in the side plate when being opened, no object is arranged on the cover door, and the cover door can be conveniently opened and closed.

3. According to the invention, through the three supporting blocks arranged on the supporting mechanism, the supporting mechanism can be properly stretched according to the loose condition of soil through the matching of the telescopic springs, and the soil is filled and supported through the supporting blocks, so that the pressure box is always in a stable state, and the stability is improved.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

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

FIG. 2 is a schematic structural view of the securing mechanism;

FIG. 3 is a schematic view of the internal structure of the side panel;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a view of the coupling post in cooperation with the first and second mounting cylinders;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic view of the internal structure of the support mechanism;

FIG. 8 is a view of the second support block in cooperation with the first support block and the third support block;

FIG. 9 is a schematic structural view of an earth-boring mechanism;

FIG. 10 is a bottom view of FIG. 9;

fig. 11 is a mechanism schematic view of the crushing main knife.

The reference numbers in the figures illustrate:

1. a pull rod; 2. a fixing mechanism; 3. a protection mechanism; 4. a support mechanism; 5. a soil drilling mechanism; 201. a support plate; 202. a side plate; 203. mounting grooves; 204. a base plate; 205. a pressure cell; 206. connecting columns; 207. a first thread; 208. a first mounting cylinder; 209. a second thread; 210. a second mounting cylinder; 211. a third thread; 212. a fourth thread; 213. a retractable plate; 214. a cavity; 215. a first sealing plate; 216. a threaded opening; 301. covering the door; 302. a second sealing plate; 303. mounting blocks; 304. a connecting rod; 305. a chute; 306. a slide plate; 307. a baffle plate; 308. mounting a plate; 309. a telescopic rod; 310. a push rod; 401. a fixing plate; 402. enclosing plates; 403. a tension spring; 404. a first support block; 405. a second support block; 406. a third support block; 407. fixing the pile; 408. a traveler; 409. a sliding groove; 410. a desiccant; 411. a water baffle; 501. a support cylinder; 502. a threaded post; 503. a drive motor; 504. handshaking; 505. a rotating shaft; 506. a diamond bit; 507. an outer cylinder; 508. a soil gathering plate; 509. a placement area; 510. a placement groove; 511. crushing a main cutter; 512. breaking a knife; 513. a fixing hole; 514. a blocking protective net; 515. a telescopic supporting rod.

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.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

The utility model provides a vertical placement device of pressure cell for testing ground mechanical properties in ground experiment, as shown in figure 1, including pull rod 1, pull rod 1 is the cavity setting, the bottom threaded connection of pull rod 1 has and is used for carrying out fixed establishment 2 to the pressure soil box, all be equipped with the supporting mechanism 4 that is used for supporting the guard action to the pressure soil box on the bottom of fixed establishment 2 and the one side of keeping away from the ground that awaits measuring, the top of pull rod 1 can be dismantled and be connected with the earth boring mechanism 5 that is used for making things convenient for the pressure soil box to place, ground is introduced in the pull rod 1 of cavity setting can be gone into in the wiring of pressure soil box, make things convenient for workman's operation.

As shown in fig. 2-6, the fixing mechanism 2 includes a supporting plate 201, a threaded hole 216 is formed at the top end of the supporting plate 201, the threaded hole 216 is detachably connected with the pull rod 1, two side plates 202 are disposed at two sides of the bottom end of the supporting plate 201, mounting grooves 203 are formed on the side plates 202, cavities 214 are formed in the side plates 202, first sealing plates 215 are disposed on the peripheries of the outer sides of the mounting grooves 203, a bottom plate 204 is connected between the two mounting grooves 203, a pressure box 205 is detachably connected between the supporting plate 201 and the bottom plate 204, connecting columns 206 are disposed on two sides of the pressure box 204 of the bottom plate 204, first threads 207 are disposed on the connecting columns 206, first mounting cylinders 208 are disposed on two sides of the pressure box 205 on the supporting plate 201, second threads 209 are disposed in the first mounting cylinders 208, second mounting cylinders 210 are disposed between the first mounting cylinders 208 and the connecting columns 206, third threads 211 matched with the second threads 209 are disposed on the upper half ends of the outer walls of the second mounting cylinders 210, the lower half end of the inner wall of the second mounting cylinder 210 is provided with a fourth thread 212 matched with the first thread 207, the inner side of the side plate 202 is provided with a telescopic plate 213, the telescopic plates 213 are positioned at two sides of the bottom plate 204, the telescopic plates 213 are both connected with the bottom plate 204, the outer side of the side plate 202 is provided with a protection mechanism 3, the protection mechanism 3 is positioned in the cavity 214, the telescopic plate 213 and a cover door 301 on the protection mechanism 3 can protect components in the side plate 202, prevent soil from entering and rust the components, the second mounting cylinder 210 can be matched with the third thread 211 through the second thread 209 and the fourth thread 212 and the first thread 207, the height of the second mounting cylinder 210 between the connecting column 206 and the first mounting cylinder 208 can be adjusted, so that the distance between the bottom plate 204 and the supporting plate 201 can be adjusted, pressure boxes 205 with different sizes can be conveniently fixed, the protection mechanism 3 comprises a cover door 301, the cover door 301 is matched with the mounting groove 203, a second sealing plate 302 matched with the first sealing plate 215 is arranged around the upper end of the cover door 301, the first sealing plate 215 is matched with the second sealing plate 302, the gap around the cover door 301 can be reduced, the mud can be prevented from entering the cavity 214 and damaging the assembly, two mounting blocks 303 are symmetrically arranged at the bottom end of the cover door 301, a connecting rod 304 is rotatably connected onto the mounting blocks 303, a sliding groove 305 is arranged on the inner wall of the cavity 214, a sliding plate 306 is arranged in the sliding groove 305, the connecting rod 304 is rotatably connected with the sliding plate 306 through a connecting shaft, a baffle 307 is arranged on one side inside the cavity 214, the baffle 307 is connected with the tail end of the sliding groove 305, a mounting plate 308 is arranged on the other side of the cavity 214, an expansion rod 309 is arranged on the mounting plate 308, the adjusting end of the expansion rod 309 is connected with the outside, a push rod 310 is arranged at the output end of the expansion rod, and the tail end of the push rod 310 is connected with the sliding plate 306, through the flexible of telescopic link 309 to and slide 306's cooperation, can drive lid door 301 and remove, thereby control lid door 301 open and closed, lid door 301 cooperates with mounting groove 203 during the closure, and when opening, lid door 301 stretches out and draws back the inside of cavity 214, occupation space not reduces lid door 301's corrosion, conveniently opens.

As shown in fig. 7 and 8, the supporting mechanism 4 includes a fixing plate 401, the fixing plate 401 is connected to the bottom end and the side end of the fixing mechanism 2 through bolts, a surrounding plate 402 is disposed on the bottom end of the fixing plate 401, three regions are disposed in the surrounding plate 402, a plurality of extension springs 403 are disposed in each region, the bottom end of each extension spring 403 is sequentially connected to a first supporting block 404, a second supporting block 405 and a third supporting block 406 from left to right, fixed piles 407 are disposed on the bottom ends of the first supporting block 404, the second supporting block 405 and the third supporting block 406, two sliding columns 408 are symmetrically disposed on two sides of the second supporting block 405, sliding grooves 409 are disposed on one sides of the first supporting block 404 and the third supporting block 406 close to the second supporting block 405, the sliding columns 408 are matched with the sliding grooves, a drying agent 410 is disposed on the inner side of the surrounding plate 402, a water blocking plate 411 is disposed between the extension springs 403 and each supporting block, through the cooperation of sliding tray 409 and traveller 408, can make first supporting shoe 404, second supporting shoe 405 and third supporting shoe 406 mutually independent simultaneously, mutually support again, can effectively block the damage that earth moisture got into and led to the fact expanding spring 403, breakwater 411 can further keep out the entering of moisture, and the drier 410 that is equipped with can make the inner wall dry, extension expanding spring 403's life cycle.

As shown in fig. 9-11, the soil drilling mechanism 5 includes a supporting cylinder 501, a threaded column 502 is provided at the bottom end of the supporting cylinder 501, the threaded column 502 is in threaded connection with the pull rod 1, a driving motor 503 is connected at the top end of the supporting cylinder 501, handles 504 are provided around the driving motor 503, a rotating shaft 505 is provided at the bottom end of the threaded column 502, a diamond drill 506 is provided at the bottom end of the rotating shaft 505, an outer cylinder 507 is connected to the outer wall of the supporting cylinder 501 through a connecting shaft, the outer cylinder 507 is sleeved on the outer wall of the supporting cylinder 501, a soil gathering disk 508 is provided at the top end of the outer cylinder 507, a placing area 509 is provided around the rotating shaft 505, a plurality of placing grooves 510 are provided in the placing area 509, a telescopic supporting rod 515 is provided at the top end inside the placing grooves 510, a crushing main knife 511 is movably connected at the bottom end inside the placing grooves 510, the length of the crushing main knife 511 is smaller than that of the placing grooves 510, a plurality of crushing knives 512 are provided at both sides of the crushing main knife 511, broken main sword 511's top is equipped with fixed orifices 513, fixed orifices 513 cooperates with flexible bracing piece 515, it blocks protection network 514 still to be equipped with the one deck between urceolus 507 and the bottom of supporting a section of thick bamboo 501, the compartment that is equipped with between urceolus 507 and the supporting a section of thick bamboo 501 can be used to get soil, and collect soil gathering in gathering native dish 508, broken main sword 511 can break up earth with broken knife 512, make things convenient for earth to get into in the urceolus 507, and the protection network 514 that blocks that is equipped with can block bold earth entering, prevent that bold earth from blocking the inside space of urceolus 507, can make bold earth continue broken, broken main sword 511 can collect the standing groove 510 when not using in, occupation space is not.

When in use, the soil drilling mechanism 5 is detached from the pull rod 1, the driving motor 503 is started to drill soil, the diamond bit 506 drills soil, and the crushing main knife 511 and the crushing small knife 512 are arranged, soil is scattered, in order to prevent the main crushing cutter 511 from moving during crushing, the telescopic supporting rod 515 is used for fixing, the telescopic supporting rod 515 is inserted into the fixing hole 513 to prevent movement, the crushed and scattered soil is filtered by the blocking protective net 514 and can be collected into the inner wall of the outer barrel 507, because the soil is gradually increased in the outer cylinder 507 and then collected in the soil collecting disc 508, the soil collecting disc is convenient to use, after the soil drilling is finished, the telescopic support rod 515 can be retracted, the main crushing cutter 511 is retracted into the placing groove 510 to be collected and protected, and in order to prevent the main crushing cutter 511 from moving in the placing groove 510, the main crushing cutter 511 can be tightly clamped through the telescopic support rod 515 to prevent the main crushing cutter from moving; after the pre-buried hole is drilled, the pressure box 205 is installed on the fixing mechanism 2, the distance of the second installation cylinder 210 is adjusted according to the size of the pressure box 205, the pressure box 205 is fixed, after the fixing is completed, the telescopic rod 309 is driven, the telescopic rod 309 drives the sliding plate 306 to move in the sliding groove 305, so that the cover door 301 is driven to move, when the cover door 301 completely reaches the installation groove 203, the cover door 301 has no resistance because the sliding plate 306 continues to move, through the matching of the connecting rod 304 and the installation block 303, the cover door 301 enters the installation groove 203, when the sliding plate 306 reaches the baffle 307, the telescopic rod 309 stops stretching, so that the cover door 301 is fixed, the outer side of the installation groove 203 can be sealed, the internal components of the side plate 202 are protected, then the supporting mechanism 4 is connected with the fixing mechanism 2 through the bolt, after the completion, the pull rod 1 is connected with the threaded hole 216 on the fixing mechanism 2, the fixing mechanism 2 is sent to the ground, the pressure box 205 is supported and protected through the supporting mechanism 4, the pressure box 205 can be stabilized in the ground, then soil is filled, the pull rod 1 rotates reversely to be separated from the fixing mechanism 2, finally the threaded column 502 of the soil drilling mechanism 5 is connected with the pull rod 1 again, the diamond bit 506 of the soil drilling mechanism 5 is located in the pull rod 1 to be protected, and the service cycle of the soil drilling mechanism is prolonged.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (6)

1. The vertical placing equipment of the pressure box for testing the mechanical property of the rock and soil in the rock and soil experiment comprises a pull rod (1) and is characterized in that the pull rod (1) is arranged in a hollow mode, a fixing mechanism (2) for fixing the pressure soil box is in threaded connection with the bottom end of the pull rod (1), supporting mechanisms (4) for supporting and protecting the pressure soil box are arranged at the bottom end of the fixing mechanism (2) and on one side, away from the rock and soil to be tested, of the fixing mechanism, and a soil drilling mechanism (5) for facilitating the placement of the pressure soil box is detachably connected to the top end of the pull rod (1);

the supporting mechanism (4) comprises a fixing plate (401), the fixing plate (401) is respectively connected with the bottom end and the side end of the fixing mechanism (2) through bolts, a surrounding plate (402) is arranged on the bottom end of the fixing plate (401), three areas are arranged in the surrounding plate (402), a plurality of expansion springs (403) are arranged in each area, the bottom end of each expansion spring (403) is sequentially connected with a first supporting block (404), a second supporting block (405) and a third supporting block (406) from left to right, fixing piles (407) are arranged at the bottom ends of the first supporting block (404), the second supporting block (405) and the third supporting block (406), two sliding columns (408) are symmetrically arranged at two sides of the second supporting block (405), and sliding grooves (409) are formed in one sides of the first supporting block (404) and the third supporting block (406) close to the second supporting block (405), the sliding column (408) is matched with the sliding groove (409), a drying agent (410) is arranged on the inner side of the enclosing plate (402), and a water baffle (411) is arranged between the telescopic spring (403) and each supporting block.

2. The pressure box vertical placement device for testing geotechnical characteristics in geotechnical experiments according to claim 1, wherein the fixing mechanism (2) comprises a support plate (201), a threaded port (216) is formed in the top end of the support plate (201), the threaded port (216) is detachably connected with the pull rod (1), two side plates (202) are arranged on two sides of the bottom end of the support plate (201), mounting grooves (203) are formed in the side plates (202), a cavity (214) is formed in each side plate (202), first sealing plates (215) are arranged on the periphery of the outer side of each mounting groove (203), a bottom plate (204) is connected between the two mounting grooves (203), a pressure box (205) is detachably connected between the support plate (201) and the bottom plate (204), and connecting columns (206) are arranged on two sides of the bottom plate (204) which are located on the pressure box (205), a first thread (207) is arranged on the connecting column (206), a first mounting cylinder (208) is arranged on the supporting plate (201) and positioned on two sides of the pressure box (205), a second thread (209) is arranged in the first mounting cylinder (208), a second mounting cylinder (210) is arranged between the first mounting cylinder (208) and the connecting column (206), the upper half end of the outer wall of the second mounting cylinder (210) is provided with a third thread (211) matched with the second thread (209), a fourth thread (212) matched with the first thread (207) is arranged on the lower half end of the inner wall of the second mounting cylinder (210), the inner sides of the side plates (202) are provided with expansion plates (213), the expansion plates (213) are positioned at the two sides of the bottom plate (204), and the expansion plates (213) are connected with the bottom plate (204), the outer sides of the side plates (202) are provided with protection mechanisms (3), and the protection mechanisms (3) are positioned in the cavities (214).

3. The vertical placing equipment of the pressure box for testing the mechanical characteristics of the rock and soil in the rock and soil experiment according to claim 2 is characterized in that the protection mechanism (3) comprises a cover door (301), the cover door (301) is matched with a mounting groove (203), a second sealing plate (302) matched with a first sealing plate (215) is arranged around the upper end of the cover door (301), two mounting blocks (303) are symmetrically arranged on the bottom end of the cover door (301), a connecting rod (304) is rotatably connected to the mounting blocks (303), a sliding groove (305) is formed in the inner wall of the cavity (214), a sliding plate (306) is arranged in the sliding groove (305), and the connecting rod (304) is rotatably connected with the sliding plate (306) through a connecting shaft.

4. The vertical placing equipment of the pressure box for testing the mechanical characteristics of the rock and soil in the rock and soil experiment according to claim 3 is characterized in that a baffle (307) is arranged on one side of the inside of the cavity (214), the baffle (307) is connected with the tail end of the sliding groove (305), a mounting plate (308) is arranged on the other side of the cavity (214), an expansion rod (309) is arranged on the mounting plate (308), the adjusting end of the expansion rod (309) is connected with the outside, a push rod (310) is arranged at the output end of the expansion rod (309), and the tail end of the push rod (310) is connected with the sliding plate (306).

5. The vertical placing equipment of pressure cell for testing mechanical characteristics of rock and soil in geotechnical experiment according to claim 1, characterized in that, it includes a support section of thick bamboo (501) to bore native mechanism (5), the bottom of a support section of thick bamboo (501) is equipped with screw thread post (502), screw thread post (502) and pull rod (1) threaded connection, the top of a support section of thick bamboo (501) is connected with driving motor (503), be equipped with around driving motor (503) and shake hands (504), the bottom of screw thread post (502) is equipped with axis of rotation (505), be equipped with diamond bit (506) on the bottom of axis of rotation (505), the outer wall of a support section of thick bamboo (501) is connected with urceolus (507) through the connecting axle, urceolus (507) cover is established on the outer wall of a support section of thick bamboo (501), be equipped with on the top of urceolus (507) and gather native dish (508).

6. The pressure box vertical placement device for testing geotechnical characteristics in geotechnical experiments according to claim 5, it is characterized in that the periphery of the rotating shaft (505) is provided with a placing area (509), a plurality of placing grooves (510) are arranged in the placing area (509), the top ends of the interior of the placing grooves (510) are provided with telescopic supporting rods (515), the bottom end in the placing groove (510) is movably connected with a main crushing cutter (511), the length of the main crushing cutter (511) is less than that of the placing groove (510), a plurality of crushing small knives (512) are arranged on two sides of the crushing main knife (511), a fixing hole (513) is arranged at the top end of the crushing main knife (511), the fixed orifices (513) are matched with the telescopic supporting rods (515), and a layer of blocking protective net (514) is further arranged between the bottom ends of the outer cylinder (507) and the supporting cylinder (501).

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