CN113884353B - Test die for concrete crack detection test and operation method - Google Patents
Test die for concrete crack detection test and operation method Download PDFInfo
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- CN113884353B CN113884353B CN202111062702.9A CN202111062702A CN113884353B CN 113884353 B CN113884353 B CN 113884353B CN 202111062702 A CN202111062702 A CN 202111062702A CN 113884353 B CN113884353 B CN 113884353B
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
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- 238000003466 welding Methods 0.000 claims description 24
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- 239000000843 powder Substances 0.000 description 1
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Abstract
The invention discloses a novel test die for a concrete crack detection test and an operation method, which comprise a square box, wherein a lifting structure is arranged at the bottom of the square box, the lifting structure comprises a bottom plate, a bent rod, a sliding plate, a screw rod, a short plate and a convex block, the outer wall of the bottom plate is in sliding clamping connection with the bottom of the square box, and the outer side of the bottom plate is welded and connected with the bottom of the inner side of the bent rod. The trouble of drawing out has been saved, the operation degree of difficulty has been reduced, the practicality has been improved, stretch the opposite side spring, loosen the handle afterwards, the spring provides the resilience force, make the square chest get back to the original place and produce the vibration, realize vibrating and save the trouble of transport, save time, work efficiency has been improved, convenient use, the lubricating oil brush that will leach is at the inner wall of square chest, easy operation prevents to leak the brush, ensure normal drawing of patterns, pass straight board and external connecting plate through the bolt and fix afterwards, square chest when having avoided vibrating takes place to remove, the trouble of having saved artifical support, the use degree of difficulty has been reduced, and convenient popularization and use.
Description
Technical Field
The invention relates to the technical field of test dies for concrete crack detection tests, in particular to a test die for a concrete crack detection test and an operation method.
Background
The common concrete is made of cement as main cementing material, water, sand and cobble, if necessary, chemical additive and mineral additive, and through mixing, homogeneous stirring, compact forming and curing. Concrete is mainly divided into two phases and states: the plastic state before setting and hardening, namely fresh concrete or concrete mixture; the hardened state after hardening, i.e. hardened concrete or concrete. The concrete strength grade is divided into 14 grades according to the standard value of the cube compressive strength: the fine aggregates of C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80 are required to be clean and free of impurities to ensure the quality of concrete. The sand often contains some harmful impurities such as mica, clay, silt and the like, and the harmful impurities adhere to the surface of the sand to prevent the cement from adhering to the sand and reduce the strength of the concrete; meanwhile, the water consumption of the concrete is increased, so that the shrinkage of the concrete is increased, and the freezing resistance and the impermeability are reduced. Some organic impurities, sulfides and sulfates, all of which have a corrosive effect on cement. When the sand used in important engineering concrete is judged to have potential hazard by alkali activity test, cement with alkali content less than 0.6% or admixture capable of inhibiting alkali-aggregate reaction, such as fly ash and the like, is used in preparing the concrete; when using additives containing potassium and sodium ions, special tests have to be carried out. In general, sea sand can be used for preparing concrete and reinforced concrete, but the sea sand has a large salt content and has a corrosion effect on steel bars, so that the chloride ion content of the sea sand in the reinforced concrete is not more than 0.06 percent (calculated by the percentage of dry sand weight). Prestressed concrete is not suitable for sea sand. If sea sand is necessary, the sea sand should be washed with fresh water, and the chloride ion content should not be more than 0.02%. Some impurities such as soil, shells and impurities can be removed by washing and sieving before use. In particular, the preparation of high-strength concrete should be more strict. When preparing low strength concrete with higher grade cement, the cement dosage is small and the workability of the mixture is poor due to the large water cement ratio (mass ratio of water to cement). In this case, if the amount of fine clay powder in the sand is larger, the workability of the mixture can be improved by slightly extending the stirring time, and the crack detection of concrete in industrial and civil buildings has no danger to the use of the structure by cracks with a width of less than 0.05mm, and the crack of 0.05mm or more needs to be detected, analyzed, evaluated and treated.
The existing test die for concrete crack detection test is troublesome in die taking during use, needs to be picked up inside the grinding tool, is high in operation difficulty, reduces practicality, needs to be carried together during vibration, wastes time, reduces work efficiency, is inconvenient to use, and smearing lubricating oil needs single face to be carried out one by one, is troublesome in operation, and easy to leak brush, influences the drawing of patterns, and easy to move during vibration simultaneously, needs manual support, increases the use difficulty, and does not accord with the use requirement of modern people.
Disclosure of Invention
The invention aims to provide a test die for a concrete crack detection test and an operation method thereof, which are used for solving the problems that the prior test die for the concrete crack detection test is troublesome to take out when in use, needs to be taken out in a grinding tool, has high operation difficulty and reduces practicality in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the test die for the concrete crack detection test comprises a square box, wherein a lifting structure is arranged at the bottom of the square box;
The lifting structure comprises a bottom plate, a bent rod, a sliding plate, a screw rod, a short plate and a convex block;
The outer wall of bottom plate and the bottom slip joint of square chest, the outside of bottom plate links to each other with the inboard bottom welding of bent lever, the top of bent lever links to each other with the bottom welding of slide, the inboard of slide and the outer wall below slot sliding joint of square chest, the top of slide rotates with the bottom of screw rod and links to each other, the outer wall of screw rod and the inner wall threaded connection of short board, the inboard of short board links to each other with the outer wall welding of square chest, the one end and the bottom integrated into one piece of lug of screw rod. The square box internal model is convenient to take out.
Preferably, the top outside of square chest is equipped with the montant, the bottom of montant links to each other with the outside welding of the top of square chest, the outer wall right side top processing of montant has the circle mouth. The square box plays a supporting role on the vertical rod.
Preferably, a vibrating structure is arranged on the outer wall of the square box;
the vibration structure comprises a bracket, a wide plate, a cross bar, a spring and a handle;
The inner side of support links to each other with the outside welding of square chest, the outside of support is adjacent with the outer wall of broadboard, the inner wall of broadboard and the outer wall clearance fit of horizontal pole, the inboard of horizontal pole links to each other with the outer wall below welding of square chest, the outer wall of horizontal pole cup joints with the inner wall of spring mutually, the outside of spring links to each other with the outer wall below of square chest and the inboard of broadboard, the one end of horizontal pole links to each other with the inboard welding of handle. The concrete inside the square box can vibrate conveniently.
Preferably, the inner diameter of the bracket coincides with the outer wall of the wide plate. The bracket can slide left and right on the outer wall of the wide plate under the force.
Preferably, the bottom of the wide plate is provided with a bottom frame, the outer side of the top of the bottom frame is connected with the bottom of the wide plate in a welding way, and the inner wall of the bottom frame is movably connected with the outer wall of the bottom plate. The underframe plays a supporting role on the wide plate.
Preferably, the front side and the rear side of the underframe are respectively provided with a fixed structure;
the fixing structure comprises a groove plate, a square block, a straight plate and bolts;
The inner side of frid links to each other with the outer wall welding of chassis, the inner wall bottom equidistance of frid links to each other with the outer wall bottom welding of square, the outer wall of square and the inboard slip joint of straight board, the inner wall of straight board and the outer wall threaded connection of bolt. The stability of the square box during use is ensured.
Preferably, the outer wall of the vertical rod is provided with a smearing structure;
the smearing structure comprises a lantern ring, a plunger rod, a long rod, a square frame and a hairbrush;
The inner wall of lantern ring and the outer wall slip joint of montant, the outside of lantern ring is pegged graft mutually with the outer wall of inserted bar, the inboard of lantern ring is fixedly connected with the outside top of stock, the bottom of stock links to each other with the top outside welding of square frame, the brush is planted to the outer wall of square frame, the outer wall of inserted bar accords with the internal diameter of circle mouth. The lubricating oil is conveniently smeared inside the square box.
Preferably, the outer wall of the square frame is in line with the inner diameter of the square box, and through holes are formed in the outer wall of the square frame at equal intervals. The opening is convenient for filling the square box with lubricating oil.
The operation method comprises the following steps: when the test die is used, the straight plate slides on the inner wall of the groove plate, the straight plate is clamped in the gap on the inner side of the square block meeting the requirements, then the straight plate and the external connecting plate are fixed through bolts, then the square frame is filled with lubricating oil through the through hole of the outer wall, the lubricating oil wets the brush on the outer wall of the square frame, then the inserted rod is pulled outwards to separate the brush from the round hole, then the sleeve ring rotates 180 degrees on the outer wall of the vertical rod, then the sleeve ring is pushed downwards on the outer wall of the vertical rod, then the square frame is driven by the long rod to move downwards, the square frame is attached to the inner wall of the square box to move downwards, the leached lubricating oil is brushed on the inner wall of the square box, then the square frame is fixed to the original position through reverse operation, then the concrete is poured into the square box, then one side of the transverse rod is pulled through the handle, the transverse rod drives the square box to move to one side, meanwhile the spring is extruded, the other side spring is stretched, then the handle is loosened, the spring provides rebound force, the square box returns to the original place to generate vibration, the concrete inside the square box is vibrated, the square box is made to vibrate, the mould is taken, the screw is rotated upwards through the short plate, and then the bottom plate is driven to move upwards, and the square box is matched with the square frame to move upwards, and the square box is pushed upwards to be convenient to take the model.
Compared with the prior art, the invention has the beneficial effects that: according to the test die for the concrete crack detection test, the screw rod in the lifting structure rotates upwards through the short plate, so that the sliding plate is driven to slide upwards, the moving sliding plate is matched with the bent rod to drive the bottom plate to move upwards, so that a model inside the square box is ejected upwards, the trouble of picking is omitted, the operation difficulty is reduced, and the practicability is improved;
The handle in the vibrating structure pulls the cross bar at one side, the cross bar drives the square box to move to one side, the spring is extruded at the same time, the spring at the other side is stretched, then the handle is loosened, the spring provides resilience force, so that the square box returns to the original place to generate vibration, the trouble of carrying is avoided, the time is saved, the working efficiency is improved, and the vibrating device is convenient to use;
Filling lubricating oil into a through hole of the outer wall of the square frame in the smearing structure, so that the lubricating oil wets a brush of the outer wall of the square frame, then pulling the inserted link outwards to separate the inserted link from the round hole, then enabling the lantern ring to rotate at the outer wall of the vertical rod and then pushing the lantern ring downwards at the outer wall of the vertical rod, further driving the square frame to move downwards by matching with the long rod, enabling the square frame to be attached to the inner wall of the square box to move downwards, brushing the leached lubricating oil on the inner wall of the square box, and ensuring normal demolding, and the operation is simple, and leakage of brushing is prevented;
Through the fixed knot in the structure straight board slide at the inner wall of frid, let straight board card be in the inboard space of square that accords with the demand, pass straight board and external connecting plate through the bolt afterwards and fix, the square chest takes place to remove when having avoided vibrating, has saved the trouble of artifical support, has reduced the use degree of difficulty, convenient to popularize and use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the connection relationship among the base plate, the bent rod and the slide plate in FIG. 1;
FIG. 3 is a schematic view of the connection relationship among the bracket, the wide plate and the cross bar in FIG. 1;
FIG. 4 is a schematic diagram of the connection relationship among the square box, the vertical rod and the round opening in FIG. 1;
FIG. 5 is a schematic view of the connection relationship of the collar, plunger and long rod of FIG. 1;
FIG. 6 is a schematic diagram of the connection relationship among the trough plate, square block and straight plate in FIG. 1.
In the figure: 1. square box, 2, lifting structure, 201, bottom plate, 202, bent rod, 203, slide plate, 204, screw, 205, short plate, 206, bump, 3, vibration structure, 301, bracket, 302, wide plate, 303, cross bar, 304, spring, 305, handle, 4, painting structure, 401, collar, 402, inserted rod, 403, long rod, 404, square frame, 405, brush, 5, fixed structure, 501, slot plate, 502, square block, 503, straight plate, 504, bolt, 6, underframe, 7, vertical bar, 8, round mouth.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a concrete crack detects experimental test mould that uses, including square box 1, the lifting structure 2 is installed to the bottom of square box 1, lifting structure 2 includes bottom plate 201, bent rod 202, slide 203, screw 204, short slab 205 and lug 206, the outer wall of bottom plate 201 and the bottom slip joint of square box 1, the bottom plate 201 atress is through the inner wall bottom of square box 1 sliding up and down, the outside of bottom plate 201 and the inboard bottom welded connection of bent rod 202, the top of bent rod 202 links to each other with the bottom welded connection of slide 203, the inboard of slide 203 and the lower slot sliding joint of the outer wall of square box 1, the top of slide 203 atress is through the lower slot inner wall of square box 1 sliding up and down, the top of slide 203 links to each other with the bottom rotation of screw 204, the screw 204 atress is through the top bearing of slide 203 rotates, the outer wall and the inner wall threaded connection of short slab 205, the inboard of short slab 205 links to each other with the outer wall welded connection of square box 1, one end of screw 204 and the bottom integrated into one piece of lug 206 are convenient for drive screw 204 rotate, the top outside montant of square box 1 is equipped with 7, the bottom of 7 links to each other with the outer side of square box 1, the top montant is connected with the outside of 7 has the right side of montant 8;
Screw rod is through the upward rotation of short board in the elevation structure, and then drives the slide and upwards slides, and the slide cooperation bent rod that removes drives the bottom plate upward movement to upwards ejecting the model of square chest inside, saved and drawn the trouble of getting, reduced the operation degree of difficulty, improved the practicality.
The outer wall of the square box 1 is provided with a vibration structure 3, the vibration structure 3 comprises a support 301, a wide plate 302, a cross rod 303, a spring 304 and a handle 305, the inner side of the support 301 is connected with the outer side of the square box 1 in a welding way, the outer side of the support 301 is adjacent to the outer wall of the wide plate 302, the support 301 can move left and right on the outer wall of the wide plate 302, the inner wall of the wide plate 302 is in clearance fit with the outer wall of the cross rod 303, the cross rod 303 is forced to move left and right through the inner wall of the wide plate 302, the inner side of the cross rod 303 is connected with the lower part of the outer wall of the square box 1 in a welding way, the outer wall of the cross rod 303 is sleeved with the inner wall of the spring 304, the outer side of the spring 304 is fixedly connected with the lower part of the outer wall of the square box 1 and the inner side of the wide plate 302 in a welding way, the outer side of the square box 1 is in a rebound by the elasticity of the spring 304 in a matching manner, one end of the cross rod 303 is connected with the inner side of the handle 305 in a welding way, the handle 305 is convenient for driving the cross rod 303 to move, the inner diameter of the support 301 is matched with the outer wall of the wide plate 302, the bottom of the wide plate 302 is provided with a bottom chassis 6, the top of the chassis 6 is connected with the bottom of the wide plate 302 in a welding way, the inner side of the chassis 6 is movably connected with the bottom of the wide plate 201, and the chassis 201;
Through handle pulling one side horizontal pole in the vibrating structure, the horizontal pole drives the square chest and removes to one side, extrudees the spring simultaneously, stretches the opposite side spring, unclamps the handle afterwards, and the spring provides resilience force, makes the square chest get back to the original place and produces the vibration, realizes vibrating and saves the trouble of transport, saves time, has improved work efficiency, convenient to use.
The front side and the rear side of the underframe 6 are respectively provided with a fixing structure 5, the fixing structure 5 comprises a groove plate 501, a square block 502, a straight plate 503 and a bolt 504, the inner side of the groove plate 501 is connected with the outer wall of the underframe 6 in a welding way, the bottom of the inner wall of the groove plate 501 is connected with the bottom of the outer wall of the square block 502 in an equidistant way, the outer wall of the square block 502 is connected with the inner side of the straight plate 503 in a sliding clamping way, the straight plate 503 is stressed to slide through a space between the square block 502 and the groove plate 501, the inner wall of the straight plate 503 is connected with the outer wall of the bolt 504 in a threaded way, and the bolt 504 rotates up and down through the straight plate 503;
Through the fixed knot in the structure straight board slide at the inner wall of frid, let straight board card be in the inboard space of square that accords with the demand, pass straight board and external connecting plate through the bolt afterwards and fix, the square chest takes place to remove when having avoided vibrating, has saved the trouble of artifical support, has reduced the use degree of difficulty, convenient to popularize and use.
The outer wall of the vertical rod 7 is provided with a coating structure 4, the coating structure 4 comprises a lantern ring 401, a plunger 402, a long rod 403, a square frame 404 and a brush 405, the inner wall of the lantern ring 401 is in sliding clamping connection with the outer wall of the vertical rod 7, the lantern ring 401 is stressed to slide up and down through the outer wall of the vertical rod 7, the outer side of the lantern ring 401 is in plug connection with the outer wall of the plunger 402, the inner side of the lantern ring 401 is fixedly connected with the top of the long rod 403, the bottom of the long rod 403 is in welding connection with the outer side of the top of the square frame 404, the outer wall of the square frame 404 is planted with the brush 405, the brush 405 is made of pig bristles, the outer wall of the plunger 402 is matched with the inner diameter of the round opening 8, the plunger 402 can be plugged with the round opening 8, the outer wall of the square frame 404 is matched with the inner diameter of the square box 1, a through opening is formed in an equidistant manner, and lubricating oil is filled in the square frame 404;
Through the through-hole filling lubricating oil of smearing the structure middle square frame outer wall, make lubricating oil soak the brush of square frame outer wall, then outside pulling inserted bar makes it break away from the circle mouth, the lantern ring rotates at the outer wall of montant afterwards and then promotes the lantern ring at the outer wall of montant downwards, and then cooperates the stock to drive square frame downwardly moving, and the inner wall of square frame laminating square box moves downwards, brushes the lubricating oil that leaches at the inner wall of square box, easy operation prevents to leak the brush, ensures normal drawing of patterns.
A concrete crack detection test mold and an operation method thereof, the operation steps are as follows: when the test die is used, the straight plate 503 slides on the inner wall of the groove plate 501, the straight plate 503 is clamped in a gap on the inner side of the square 502 meeting the requirement, then the straight plate 503 passes through the bolt 504 to be fixed with an external connecting plate, then lubricating oil is poured into the square frame 404 through a through hole on the outer wall, so that the lubricating oil wets a hairbrush 405 on the outer wall of the square frame 404, then the inserted rod 402 is pulled outwards to separate from the round hole 8, then the lantern ring 401 rotates 180 degrees on the outer wall of the vertical rod 7, then the lantern ring 401 is pushed downwards on the outer wall of the vertical rod 7, then the square frame 404 is matched with the long rod 403 to drive the square frame 404 to move downwards, the square frame 404 is matched with the inner wall of the square frame 1 to move downwards, the leached lubricating oil brush is fixed on the inner wall of the square frame 1, then the square frame 404 is reversely operated to be fixed to the original position, then concrete (concrete) is poured into the square frame 1, then one side of the square frame is pulled by a handle 303, the square frame 1 is driven to move to one side by the handle, meanwhile, the other side of the square frame 304 is pushed by the spring 304, the other side of the square frame 304 is pulled, the other side of the square frame 304 is pulled by the elastic force, the square frame 1 is rotated to the other side, then the square frame is pulled up to the inner side of the square frame 1, the square frame is pushed by the concrete, the square frame 205, the square frame is pulled by the concrete, and the inside the square frame is pushed by the square frame 203, and the square frame is pushed by the left in the square frame, and the inside, and the square frame is convenient to move by.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a concrete crack detects experimental mould of using, includes square chest (1), its characterized in that: a lifting structure (2) is arranged at the bottom of the square box (1);
The lifting structure (2) comprises a bottom plate (201), a bent rod (202), a sliding plate (203), a screw (204), a short plate (205) and a convex block (206);
The outer wall of the bottom plate (201) is in sliding clamping connection with the bottom of the square box (1), the outer side of the bottom plate (201) is connected with the inner side bottom of the bent rod (202) in a welding mode, the top of the bent rod (202) is connected with the bottom of the sliding plate (203) in a welding mode, the inner side of the sliding plate (203) is in sliding clamping connection with a groove opening below the outer wall of the square box (1), the top of the sliding plate (203) is connected with the bottom of the screw rod (204) in a rotating mode, the outer wall of the screw rod (204) is in threaded connection with the inner wall of the short plate (205), the inner side of the short plate (205) is connected with the outer wall of the square box (1) in a welding mode, and one end of the screw rod (204) is integrally formed with the bottom of the lug (206);
a vertical rod (7) is arranged on the outer side of the top of the square box (1), the bottom of the vertical rod (7) is welded and connected with the outer side of the top of the square box (1), and a round opening (8) is formed in the upper right side of the outer wall of the vertical rod (7);
the outer wall of the square box (1) is provided with a vibration structure (3);
the vibrating structure (3) comprises a bracket (301), a wide plate (302), a cross rod (303), a spring (304) and a handle (305);
the inner side of the support (301) is welded and connected with the outer side of the square box (1), the outer side of the support (301) is adjacent to the outer wall of the wide plate (302), the inner wall of the wide plate (302) is in clearance fit with the outer wall of the cross rod (303), the inner side of the cross rod (303) is welded and connected with the lower part of the outer wall of the square box (1), the outer wall of the cross rod (303) is sleeved and connected with the inner wall of the spring (304), the outer side of the spring (304) is fixedly connected with the lower part of the outer wall of the square box (1) and the inner side of the wide plate (302), and one end of the cross rod (303) is welded and connected with the inner side of the handle (305);
the inner diameter of the bracket (301) is consistent with the outer wall of the wide plate (302);
The bottom of the wide plate (302) is provided with a bottom frame (6), the outer side of the top of the bottom frame (6) is connected with the bottom of the wide plate (302) in a welding way, and the inner wall of the bottom frame (6) is movably connected with the outer wall of the bottom plate (201);
the front side and the rear side of the underframe (6) are respectively provided with a fixed structure (5);
The fixing structure (5) comprises a groove plate (501), a square block (502), a straight plate (503) and a bolt (504);
The inner side of the groove plate (501) is connected with the outer wall of the underframe (6) in a welding way, the bottom of the inner wall of the groove plate (501) is connected with the bottom of the outer wall of the square block (502) in an equidistant way, the outer wall of the square block (502) is connected with the inner side of the straight plate (503) in a sliding clamping way, and the inner wall of the straight plate (503) is connected with the outer wall of the bolt (504) in a threaded way;
the outer wall of the vertical rod (7) is provided with a smearing structure (4);
The smearing structure (4) comprises a lantern ring (401), a plunger (402), a long rod (403), a square frame (404) and a hairbrush (405);
The inner wall of the lantern ring (401) is in sliding clamping connection with the outer wall of the vertical rod (7), the outer side of the lantern ring (401) is in plug connection with the outer wall of the inserted link (402), the inner side of the lantern ring (401) is fixedly connected with the top of the outer side of the long rod (403), the bottom of the long rod (403) is connected with the outer side of the top of the square frame (404) in a welding mode, a hairbrush (405) is planted on the outer wall of the square frame (404), and the outer wall of the inserted link (402) is consistent with the inner diameter of the round opening (8);
The outer wall of the square frame (404) is in line with the inner diameter of the square box (1), and through holes are formed in the outer wall of the square frame (404) at equal intervals.
2. A method of operating a test mould for a concrete crack detection test according to claim 1, characterized by the steps of: when the test die is used, the straight plate (503) slides on the inner wall of the groove plate (501), the straight plate (503) is clamped in a gap on the inner side of the square block (502) meeting the requirement, then the straight plate (503) is fixed with an external connecting plate through bolts (504), then lubricating oil is poured into the square frame (404) through the through holes of the outer wall, so that the lubricating oil wets the hairbrush (405) on the outer wall of the square frame (404), then the inserted rod (402) is pulled outwards to separate from the round hole (8), then the lantern ring (401) rotates 180 degrees on the outer wall of the vertical rod (7) and then the lantern ring (401) is pushed downwards on the outer wall of the vertical rod (7), then the square frame (404) is driven to move downwards by matching with the long rod (403), the square frame (404) is attached to the inner wall of the square box (1) to move downwards, the leached lubricating oil is brushed on the inner wall of the box body (1), then the square frame (404) is fixed to the original position by reverse operation, then concrete (concrete) is poured into the square box (1), then one side cross rod (303) is pulled by a handle (305), the square box (1) is driven to move to one side by the cross rod (303), meanwhile, the spring (304) is extruded, the other side spring (304) is stretched, then the handle (305) is released, the spring (304) provides resilience force, so that the square box (1) returns to the original position to generate vibration, when the mould is taken, the screw rod (204) rotates upwards through the short plate (205), the sliding plate (203) is driven to slide upwards, the moving sliding plate (203) is matched with the bent rod (202) to drive the bottom plate (201) to move upwards, and therefore the mould inside the square box (1) is ejected upwards, and the mould is convenient to take and use.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062702.9A CN113884353B (en) | 2021-09-10 | Test die for concrete crack detection test and operation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062702.9A CN113884353B (en) | 2021-09-10 | Test die for concrete crack detection test and operation method |
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| CN113884353A CN113884353A (en) | 2022-01-04 |
| CN113884353B true CN113884353B (en) | 2024-05-31 |
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