Pressure resistance detection device for civil engineering material experiment

Abstract

The invention provides a pressure resistance detection device for civil engineering material experiments, and relates to the field of pressure resistance detection. The pressure resistance detection device for the civil engineering material experiment comprises a bottom plate, a stamping structure is fixedly connected to the position, close to the rear side edge, of the center of the upper end face of the bottom plate, a control panel is fixedly connected to the position, close to the lower end, of the center of one side wall of the stamping structure, and adjusting structures are arranged at the positions, close to the two sides, of the center of the upper end face of the bottom plate correspondingly. And protection structures are respectively arranged at the center of the upper end surface of the bottom plate close to two side edges and the center of the upper end surface close to the front side edge. By arranging a protection structure, during use, a transverse plate can be pulled up from the interior of a storage groove, then two step telescopic rods are stretched, the supporting effect is achieved, a protection net is unfolded while supporting is conducted, broken wood chips can be protected, and the situation that splashing wood chips damage detection personnel is avoided; and during supporting, the inclined supporting rods are obliquely supported in the storage grooves, so that the stability during overall placement is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pressure resistance detection, in particular to a pressure resistance detection device for civil engineering material experiments. Background Art

[0002] In modern society, civil engineering, as a discipline with a long history and continuous development, plays a vital role in promoting social progress and improving the quality of human life. With the acceleration of global urbanization and the growth of population, the demand for infrastructure is increasing, which includes not only new projects but also the maintenance, upgrading and transformation of existing facilities. Civil engineering is an important branch of engineering, mainly involving the design, construction and protection of natural and artificial environments, including roads, bridges, canals, dams, airports, sewage treatment systems, pipelines, buildings and railways. Civil engineering can be further subdivided into multiple professional fields, including structural engineering, water conservancy engineering, environmental engineering, transportation engineering, geological engineering, construction engineering and geotechnical engineering. Civil engineering materials are generally used in the construction process of civil engineering, such as building formwork and building panels. Before use, pressure needs to be applied to them to test the pressure resistance of civil engineering materials for experimental use.

[0003] However, the existing pressure resistance testing devices still have some shortcomings and areas for improvement during actual use. When the existing templates are subjected to pressure tests, they are prone to slipping and deviation due to the flat structure of the plate, which can easily affect the accuracy of the test results. At the same time, they also have a certain risk factor. During the pressure test, the templates are easily broken due to excessive pressure, and the splashing of broken debris can easily cause harm to the testers. The protection is insufficient, and the existing pressure resistance testing devices cannot simulate the stress conditions of plates of different structures during stamping during testing. Therefore, technicians in this field provide a pressure resistance testing device for civil engineering material experiments to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a pressure resistance testing device for civil engineering material experiments, which solves the problems that the prior structure is prone to deviation during stamping, debris splashes when the template is broken, and it is impossible to simulate the stress conditions of the template when different structures are stamped on the template.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressure-resistant testing device for civil engineering material experiments, comprising a base plate, a stamping structure is fixedly connected to the rear edge of the center of the upper end surface of the base plate, a control panel is fixedly connected to the lower end of the center of one side wall of the stamping structure, adjustment structures are respectively provided at the two sides of the center of the upper end surface of the base plate, protective structures are respectively provided at the two side edges of the center of the upper end surface of the base plate and the front edge of the center of the upper end surface, the lower ends of the three protective structures respectively penetrate the upper end surface of the base plate and respectively pass into the interior, the stamping structure comprises a placement shell, the lower end of the placement shell is fixedly connected to the rear edge of the center of the upper end surface of the base plate, the upper end of the placement shell is fixedly connected to a vertical shell, a second motor is provided inside the placement shell, and the second motor The lower end is fixedly connected to the lower inner wall of the placement shell, the output end of the second motor passes through the upper inner wall of the placement shell and the lower end face of the vertical shell and passes to the interior of the vertical shell, an adjusting slot is provided at the center of the front side wall of the vertical shell, a screw rod is provided inside the adjusting slot, the upper end of the screw rod is rotatably connected to the upper inner wall of the adjusting slot, the lower end of the screw rod is fixedly connected to the output end of the second motor, a second connecting sleeve is sleeved on the side wall of the screw rod inside the adjusting slot, a connecting cross bar is fixedly connected to the front side wall of the second connecting sleeve, a fixing plate is fixedly connected to the front end of the connecting cross bar, a hydraulic press is fixedly connected to the center of the upper end face of the fixing plate, the output end of the hydraulic press passes through the upper end face of the fixing plate and passes to the lower end, and a holding structure is fixedly connected to the end, and a display panel is fixedly connected to the center of the front side wall of the fixing plate.

[0008] Preferably, the protective structure includes a storage groove, a horizontal plate is arranged inside the storage groove, and a step telescopic rod is fixedly connected to the center of the lower end surface of the horizontal plate near the front and rear side edges respectively, and the lower ends of the two step telescopic rods are fixedly connected to the lower inner wall of the storage groove respectively, and a protective net is fixedly connected to the center of the lower end surface of the horizontal plate, and the lower end of the protective net is fixedly connected to the lower inner wall of the storage groove, and a diagonal support rod is hingedly connected to the center of the lower end surface of the horizontal plate near one side edge.

[0009] Preferably, the adjusting structure includes an adjusting plate, the center of the lower end surface of the adjusting plate is fixedly connected to electric sliders on the front and rear sides respectively, and slide grooves are respectively arranged on the upper end surfaces of the bottom plates at the lower ends of the two electric sliders, and the side walls of the two electric sliders are respectively slidably connected to the inner side walls of the two slide grooves, and a movable groove is arranged at the center of the upper end surface of the adjusting plate, and a two-way screw rod is arranged inside the movable groove, and the rear end of the two-way screw rod is rotatably connected to the rear inner side wall of the movable groove, and a first connecting sleeve is symmetrically sleeved on the side wall of the two-way screw rod inside the movable groove, and the upper ends of the two first connecting sleeves are respectively fixedly connected to connecting rods, and the upper ends of the two connecting rods respectively penetrate the movable groove and pass to the upper ends, and the ends are respectively fixedly connected There is a lower clamping plate, and the upper ends of the two lower clamping plates are respectively provided with upper clamping plates, and adjusting bolts are respectively provided at the edges of the upper end surfaces of the two upper clamping plates near the centers of one side, and the lower ends of the two adjusting bolts respectively penetrate the upper end surfaces of the two upper clamping plates and respectively pass to the lower ends, and the ends are respectively rotatably connected to the upper end surfaces of the two lower clamping plates, and limiting plates are respectively fixedly connected at the edges of the lower end surfaces of the two upper clamping plates near the centers of the two upper clamping plates, and the lower ends of the two limiting plates respectively penetrate the upper end surfaces of the two lower clamping plates and respectively pass to the lower ends, and a first motor is fixedly connected at the center of the front side wall of the adjusting plate, and the output end of the first motor penetrates the side wall of the adjusting plate and passes to the inside of the movable groove, and the end is fixedly connected to one end of the bidirectional screw rod.

[0010] Preferably, the holding structure comprises a toothed plate, the upper end surface of the toothed plate is fixedly connected to the lower end of one side of the stamping structure, the lower end of the toothed plate is slidably connected to a step plate, and the lower end of the step plate is slidably connected to a flat plate.

[0011] Preferably, self-locking universal wheels are fixedly connected to the center of the lower end surface of the base plate at four diagonal positions.

[0012] Preferably, the protective net is made of nylon.

[0013] Preferably, anti-slip particles are provided on the lower end surface of the upper clamping plate and the upper end surface of the lower clamping plate.

[0014] (III) Beneficial effects

[0015] The present invention provides a pressure-resistant testing device for civil engineering material experiments. It has the following beneficial effects:

[0016] 1. In the present invention, by setting a stamping structure, when in use, the second motor drives the screw inside the vertical shell to rotate, and the second connecting sleeve is threadedly connected to the screw to drive the connecting cross bar and the fixed plate to move up and down, so as to achieve better height adjustment. The hydraulic press cooperates with the display panel to display the applied pressure value and record the experimental data.

[0017] 2. In the present invention, by setting an adjustment structure, the distance between the two adjustment plates and the four lower clamping plates can be adjusted according to the size of the plate during use. At the same time, the cooperation of the upper clamping plate and the lower clamping plate can realize the clamping processing of the edges and corners of the plate. When clamping, the plate is placed on the upper end of the lower clamping plate, and then the upper clamping plate is slowly moved down by turning the adjusting bolt, so that the plate is well pressed down and clamped to ensure stability during testing. At the same time, the position of the two adjustment plates on the upper end of the bottom plate can be adjusted to test the stress conditions of different positions of the plate.

[0018] 3. In the present invention, by setting up a protective structure, when in use, the horizontal plate can be pulled up from the inside of the storage slot, and then the two stepped telescopic rods are extended to play a supporting effect. While supporting, the protective net is unfolded to protect the broken wood chips and prevent the flying wood chips from causing injuries to the inspectors. When supporting, the diagonal support rods are diagonally supported inside the storage slot to ensure the stability of the overall placement.

[0019] 4. In the present invention, by setting a holding structure, the flat plate, the stepped plate and the toothed plate can be switched back and forth according to different test purposes, thereby simulating the pressure conditions caused by objects of different shapes on the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric diagram of the overall structure of the present invention;

[0021] Figure 2 It is an axonometric view of the connection between the upper clamping plate and the lower clamping plate in the present invention;

[0022] Figure 3 It is an axonometric diagram of the protective structure after being unfolded in the present invention;

[0023] Figure 4 It is a side sectional view of the vertical shell in the present invention;

[0024] Figure 5 is a side sectional view of the adjustment plate of the present invention;

[0025] Figure 6 for Figure 1 A magnified schematic diagram of center A.

[0026] Among them, 1. bottom plate; 2. protection structure; 201. horizontal plate; 202. step telescopic rod; 203. protection net; 204. diagonal support rod; 205. storage slot; 3. adjustment structure; 301. electric slider; 302. adjustment plate; 303. upper clamping plate; 304. adjustment bolt; 305. limit plate; 306. lower clamping plate; 307. first motor; 308. first connecting sleeve; 309. movable slot; 310. connecting rod; 311. 11. Bidirectional screw rod; 312. Slide groove; 4. Self-locking universal wheel; 5. Stamping structure; 501. Vertical shell; 502. Adjustment groove; 503. Connecting cross bar; 504. Screw rod; 505. Second connecting sleeve; 506. Second motor; 507. Placement shell; 508. Fixing plate; 509. Hydraulic press; 510. Display panel; 6. Control panel; 7. Holding structure; 701. Flat plate; 702. Step plate; 703. Toothed plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1-6As shown, the embodiment of the present invention provides a pressure-resistant testing device for civil engineering material experiments, including a bottom plate 1, a punching structure 5 is fixedly connected to the rear edge of the center of the upper end surface of the bottom plate 1, a control panel 6 is fixedly connected to the center of one side wall of the punching structure 5, an adjustment structure 3 is respectively arranged at the two sides of the center of the upper end surface of the bottom plate 1, a protective structure 2 is respectively arranged at the two side edges of the center of the upper end surface of the bottom plate 1 and the front edge of the center of the upper end surface, the lower ends of the three protective structures 2 respectively penetrate the upper end surface of the bottom plate 1 and respectively pass into the interior, and the punching structure 5 includes a placing The placing shell 507 is placed, the lower end of the placing shell 507 is fixedly connected to the center of the upper end surface of the bottom plate 1 near the rear edge, the upper end of the placing shell 507 is fixedly connected to the vertical shell 501, the second motor 506 is arranged inside the placing shell 507, the lower end of the second motor 506 is fixedly connected to the lower inner wall of the placing shell 507, the output end of the second motor 506 passes through the upper inner wall of the placing shell 507 and the lower end surface of the vertical shell 501 and passes to the interior of the vertical shell 501, and the center of the front side wall of the vertical shell 501 is provided with an adjustment groove 502, and the inner end of the adjustment groove 502 is provided with a second motor 506. A screw rod 504 is provided at the bottom, the upper end of the screw rod 504 is rotatably connected to the upper inner wall of the adjusting groove 502, the lower end of the screw rod 504 is fixedly connected to the output end of the second motor 506, a second connecting sleeve 505 is sleeved on the side wall of the screw rod 504 inside the adjusting groove 502, a connecting cross bar 503 is fixedly connected to the front side wall of the second connecting sleeve 505, a fixing plate 508 is fixedly connected to the front end of the connecting cross bar 503, a hydraulic press 509 is fixedly connected to the center of the upper end surface of the fixing plate 508, and the output end of the hydraulic press 509 passes through the upper end of the fixing plate 508. The surface is connected to the lower end, and the end is fixedly connected with a holding structure 7. A display panel 510 is fixedly connected to the center of the front side wall of the fixed plate 508. When in use, the second motor 506 drives the screw rod 504 inside the vertical shell 501 to rotate. The second connecting sleeve 505 is threadedly connected to the screw rod 504 to drive the connecting cross bar 503 and the fixed plate 508 to move up and down, so as to achieve better height adjustment. The hydraulic press 509 cooperates with the display panel 510 to display the applied pressure value and record the experimental data.

[0030] The protective structure 2 includes a storage groove 205, a horizontal plate 201 is arranged inside the storage groove 205, and a ladder telescopic rod 202 is fixedly connected to the center of the lower end surface of the horizontal plate 201 near the front and rear edges on both sides, and the lower ends of the two ladder telescopic rods 202 are respectively fixedly connected to the lower inner wall of the storage groove 205, and a protective net 203 is fixedly connected to the center of the lower end surface of the horizontal plate 201, and the lower end of the protective net 203 is fixedly connected to the lower inner wall of the storage groove 205, located at the center of the lower end surface of the horizontal plate 201. A diagonal support rod 204 is hingedly connected to the center of the lower end surface near one side edge. When in use, the horizontal plate 201 can be pulled up from the inside of the storage groove 205, and then the two stepped telescopic rods 202 are extended to achieve a supporting effect. While providing support, the protective net 203 is unfolded to protect broken wood chips and prevent flying wood chips from causing injuries to inspectors. When providing support, the diagonal support rod 204 is diagonally supported inside the storage groove 205 to ensure the stability of the overall placement.

[0031] The adjustment structure 3 includes an adjustment plate 302, and the center of the lower end surface of the adjustment plate 302 is fixedly connected to the electric slider 301 on the front and rear sides respectively. The upper end surface of the bottom plate 1 at the lower end of the two electric sliders 301 is respectively provided with a slide groove 312, and the side walls of the two electric sliders 301 are respectively slidably connected to the inner side walls of the two slide grooves 312. A movable groove 309 is provided at the center of the upper end surface of the adjustment plate 302, and a bidirectional screw rod 311 is provided inside the movable groove 309. The rear end of the bidirectional screw rod 311 is rotatably connected to the rear inner side wall of the movable groove 309, and the movable groove 309 is located at the movable groove 309. 09 A first connecting sleeve 308 is symmetrically sleeved on the side wall of the internal bidirectional screw rod 311, and the upper ends of the two first connecting sleeves 308 are respectively fixedly connected with connecting rods 310, and the upper ends of the two connecting rods 310 respectively penetrate the movable groove 309 and pass to the upper end, and the ends are respectively fixedly connected with lower clamping plates 306, and the upper ends of the two lower clamping plates 306 are respectively provided with upper clamping plates 303, and the upper end centers of the two upper clamping plates 303 are respectively provided with adjusting bolts 304 at one side edge, and the lower ends of the two adjusting bolts 304 respectively penetrate the upper end surfaces of the two upper clamping plates 303 The two ends are rotatably connected to the upper end surfaces of the two lower clamping plates 306, and the limiting plates 305 are fixedly connected to the center of the lower end surfaces of the two upper clamping plates 303 near one side edge. The lower ends of the two limiting plates 305 penetrate the upper end surfaces of the two lower clamping plates 306 and pass to the lower ends respectively. The center of the front side wall of the adjusting plate 302 is fixedly connected with a first motor 307. The output end of the first motor 307 penetrates the side wall of the adjusting plate 302 and passes to the inside of the movable groove 309, and the end is fixedly connected to one end of the bidirectional screw rod 311. When in use The distance between the two adjustment plates 302 and the four lower clamping plates 306 can be adjusted according to the size of the plate. At the same time, the cooperation between the upper clamping plate 303 and the lower clamping plate 306 can realize the clamping of the corners of the plate. When clamping, the plate is placed on the upper end of the lower clamping plate 306, and then the upper clamping plate 303 is slowly moved down by screwing the adjustment bolt 304, so that the plate is well pressed down and clamped to ensure stability during testing. At the same time, the position of the two adjustment plates 302 on the upper end of the base plate 1 can also be adjusted to test the stress conditions of different positions of the plate.

[0032] The holding structure 7 includes a toothed plate 703, the upper end face of the toothed plate 703 is fixedly connected to the lower end of one side of the stamping structure 5, the lower end of the toothed plate 703 is slidably connected to a step plate 702, and the lower end of the step plate 702 is slidably connected to a flat plate 701. Depending on the test purpose, the flat plate 701, the step plate 702 and the toothed plate 703 can be replaced back and forth to simulate the pressure caused by objects of different shapes on the plate. The center of the lower end face of the base plate 1 is fixedly connected to self-locking universal wheels 4 at four diagonal points. The material of the protective net 203 is nylon, which is more durable and has better protective effect. Anti-slip particles are arranged on the lower end face of the upper clamping plate 303 and the upper end face of the lower clamping plate 306. The anti-slip particles can ensure that it is more stable during clamping and is not prone to slipping.

[0033] Working principle: The present application is a pressure-resistant testing device for civil engineering material experiments. When in use, the distance between the two adjustment plates 302 and the four lower clamping plates 306 can be adjusted according to the size of the plate. At the same time, the cooperation of the upper clamping plate 303 and the lower clamping plate 306 can realize the clamping of the corners of the plate. When clamping, the plate is placed on the upper end of the lower clamping plate 306, and then the upper clamping plate 303 is slowly moved down by screwing the adjusting bolt 304, so that the plate is well pressed down and clamped to ensure stability during the test. At the same time, the position of the two adjustment plates 302 at the upper end of the bottom plate 1 can be adjusted to test the stress conditions of the plate at different positions, and then the cross plate 201 is pulled up from the inside of the storage slot 205, and then the two stepped telescopic rods 202 are extended to achieve a supporting effect, which protects while supporting. The unfolded net 203 can be used to protect the broken wood chips and prevent the flying wood chips from causing damage to the inspectors. When supporting, the diagonal support rod 204 is diagonally supported inside the storage groove 205 to ensure the stability of the overall placement. According to different test purposes, the flat plate 701, the step plate 702 and the toothed plate 703 can be replaced back and forth to simulate the pressure caused by objects of different shapes on the plate. The second motor 506 drives the screw rod 504 inside the vertical shell 501 to rotate, and the second connecting sleeve 505 is threadedly connected to the screw rod 504 to drive the connecting cross bar 503 and the fixed plate 508 to move up and down, so as to achieve better height adjustment. The hydraulic press 509 cooperates with the display panel 510 to display the applied pressure value and record the experimental data.

[0034] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant testing device for civil engineering material experiments, comprising a bottom plate (1), characterized in that: A punching structure (5) is fixedly connected to the rear edge of the center of the upper end surface of the bottom plate (1); a control panel (6) is fixedly connected to the lower end of the center of one side wall of the punching structure (5); adjustment structures (3) are respectively arranged at the two sides of the center of the upper end surface of the bottom plate (1); protective structures (2) are respectively arranged at the two sides of the center of the upper end surface of the bottom plate (1) and at the front edge of the center of the upper end surface; the lower ends of the three protective structures (2) respectively penetrate the upper end surface of the bottom plate (1) and respectively pass into the interior; the punching structure (5) is fixedly connected to the lower end of the side wall of the bottom plate (1); ... The pressure structure (5) comprises a placement shell (507), the lower end of the placement shell (507) is fixedly connected to the center of the upper end surface of the bottom plate (1) at the rear side edge, the upper end of the placement shell (507) is fixedly connected to the vertical shell (501), a second motor (506) is arranged inside the placement shell (507), the lower end of the second motor (506) is fixedly connected to the lower inner wall of the placement shell (507), and the output end of the second motor (506) passes through the upper inner wall of the placement shell (507) and the vertical shell. The lower end surface of the vertical housing (501) is connected to the interior of the vertical housing (501), an adjustment groove (502) is arranged at the center of the front side wall of the vertical housing (501), a screw rod (504) is arranged inside the adjustment groove (502), the upper end of the screw rod (504) is rotatably connected to the upper inner wall of the adjustment groove (502), the lower end of the screw rod (504) is fixedly connected to the output end of the second motor (506), and a second connecting sleeve (506) is sleeved on the side wall of the screw rod (504) inside the adjustment groove (502). 5), a connecting cross bar (503) is fixedly connected to the front side wall of the second connecting sleeve (505), a fixing plate (508) is fixedly connected to the front end of the connecting cross bar (503), a hydraulic press (509) is fixedly connected to the center of the upper end surface of the fixing plate (508), an output end of the hydraulic press (509) passes through the upper end surface of the fixing plate (508) and passes to the lower end, and a holding structure (7) is fixedly connected to the end, and a display panel (510) is fixedly connected to the center of the front side wall of the fixing plate (508).

2. A pressure-resistant testing device for civil engineering material experiments according to claim 1, characterized in that: The protective structure (2) comprises a storage groove (205), a transverse plate (201) is arranged inside the storage groove (205), a step telescopic rod (202) is fixedly connected to the center of the lower end surface of the transverse plate (201) near the front and rear side edges, the lower ends of the two step telescopic rods (202) are fixedly connected to the lower inner wall of the storage groove (205), a protective net (203) is fixedly connected to the center of the lower end surface of the transverse plate (201), the lower end of the protective net (203) is fixedly connected to the lower inner wall of the storage groove (205), and a diagonal support rod (204) is hingedly connected to the center of the lower end surface of the transverse plate (201) near one side edge.

3. The pressure-resistant testing device for civil engineering material experiments according to claim 1 is characterized in that: The adjustment structure (3) comprises an adjustment plate (302), the center of the lower end surface of the adjustment plate (302) is fixedly connected to electric sliders (301) at the front and rear sides respectively, and the upper end surfaces of the bottom plates (1) at the lower ends of the two electric sliders (301) are respectively provided with sliding grooves (312), the side walls of the two electric sliders (301) are respectively slidably connected to the inner side walls of the two sliding grooves (312), and the center of the upper end surface of the adjustment plate (302) is provided with a movable groove (309), A bidirectional screw rod (311) is arranged inside the movable groove (309), and the rear end of the bidirectional screw rod (311) is rotatably connected to the rear inner wall of the movable groove (309). A first connecting sleeve (308) is symmetrically sleeved on the side wall of the bidirectional screw rod (311) inside the movable groove (309), and the upper ends of the two first connecting sleeves (308) are respectively fixedly connected to connecting rods (310), and the upper ends of the two connecting rods (310) respectively penetrate the movable groove (309) and pass to the upper end, and the ends The two lower clamping plates (306) are respectively fixedly connected, and the upper ends of the two lower clamping plates (306) are respectively provided with upper clamping plates (303), and the upper end centers of the two upper clamping plates (303) are respectively provided with adjusting bolts (304) near one side edge, and the lower ends of the two adjusting bolts (304) respectively penetrate the upper end surfaces of the two upper clamping plates (303) and respectively pass to the lower ends, and the ends are respectively rotatably connected to the upper end surfaces of the two lower clamping plates (306), and are located at the two upper clamping plates ( A limiting plate (305) is fixedly connected at the center of the lower end surface of the adjusting plate (303) near one side edge, and the lower ends of the two limiting plates (305) respectively penetrate the upper end surfaces of the two lower clamping plates (306) and are respectively connected to the lower ends. A first motor (307) is fixedly connected at the center of the front side wall of the adjusting plate (302), and the output end of the first motor (307) penetrates the side wall of the adjusting plate (302) and is connected to the inside of the movable groove (309), and the end is fixedly connected to one end of the bidirectional screw rod (311).

4. The pressure-resistant testing device for civil engineering material experiments according to claim 1, characterized in that: The holding structure (7) comprises a toothed plate (703), the upper end surface of the toothed plate (703) being fixedly connected to the lower end of one side of the punching structure (5), the lower end of the toothed plate (703) being slidably connected to a step plate (702), and the lower end of the step plate (702) being slidably connected to a flat plate (701).

5. The pressure-resistant testing device for civil engineering material experiments according to claim 1, characterized in that: Self-locking universal wheels (4) are fixedly connected to the center of the lower end surface of the base plate (1) at four diagonal positions.

6. A pressure-resistant testing device for civil engineering material experiments according to claim 2, characterized in that: The material of the protective net (203) is nylon.

7. The pressure-resistant testing device for civil engineering material experiments according to claim 3 is characterized in that: Anti-skid particles are provided on the lower end surface of the upper clamping plate (303) and the upper end surface of the lower clamping plate (306).

Images