Bridge concrete anti-collision guardrail compressive strength testing device

Abstract

The invention relates to the technical field of pressure testing machines, in particular to a bridge concrete anti-collision guardrail compressive strength testing device which comprises a base, and a protection mechanism and a mounting mechanism are fixed to the base. A pressing mechanism is mounted on the protection mechanism; positioning mechanisms are fixed on two sides of the mounting mechanism; a pushing mechanism is mounted on the base in a clamping manner; the pushing mechanism is installed on the base, then the test block is placed on the pushing mechanism, the pushing mechanism is started, the test block can be pushed to the installation mechanism, and then the test block can be conveyed conveniently; a control switch of the positioning mechanism is turned on, so that the positioning mechanism can be propped against the test block during displacement, the test block can be conveniently fixed at the central part of the mounting mechanism, the test block can be positioned, and the displacement condition in the test process is prevented; the protection mechanism is started to shield the periphery of the test block, and when the pressing mechanism abuts against the test block, fragments generated by fracture of the test block can be prevented from flying out.

Description

Technical Field

[0001] The present invention relates to the technical field of compression testing machines, and specifically relates to a device for testing the compressive strength of a bridge concrete anti-collision guardrail. Background Art

[0002] Concrete is an essential material in modern construction projects. During bridge construction, currently, most guardrails made of concrete structures are used to provide protection on both sides of the bridge to prevent vehicles from falling during driving. However, when vehicles drive onto the bridge at high speed, drivers often make operational mistakes, resulting in the vehicle hitting the bridge concrete structure. To avoid such accidents to the greatest extent, it is necessary to conduct quality inspections on the concrete materials required for construction to ensure the strength state of the concrete structure.

[0003] However, when conducting a downward compression test on a concrete compression test block using a compression testing machine, the operator needs to place the concrete test block at the center of the backing plate. If the position of the test block is offset, when the lower platen presses the test block, the forces received by different positions of the test block are different, which easily causes deviation in the test results and affects the measurement accuracy. In addition, when manually transporting the test block into the testing machine, since the weight of the concrete test block is relatively large, the workload of the operator will increase after repeated tests. After the test block is placed, the protective cover of the testing machine needs to be manually closed, which is inconvenient to operate when placing and taking the test block, and is not conducive to the use effect of the equipment. Summary of the Invention

[0004] Aiming at the problems in the prior art, the present invention provides a device for testing the compressive strength of a bridge concrete anti-collision guardrail.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a device for testing the compressive strength of a bridge concrete anti-collision guardrail, including a base, on which a protection mechanism and an installation mechanism are fixed; a downward pressure mechanism is installed on the protection mechanism; positioning mechanisms are fixed on both sides of the installation mechanism; and a pushing mechanism is snap-fitted and installed on the base.

[0006] Specifically, the positioning mechanism includes a fixing plate and a sleeve rod. Two fixing plates are symmetrically and fixedly connected to the base. A sleeve rod is fixedly connected to the fixing plate. A sliding rod is slidably connected to the sleeve rod. A first hydraulic rod is fixedly installed on the fixing plate. The telescopic end of the first hydraulic rod is fixedly connected to the sliding rod. An abutting plate is fixedly installed on the sliding rod. Two empty slots are symmetrically arranged on the abutting plate. A roller is rotatably arranged at the empty slot part. A connecting shaft is fixedly installed on the roller. The connecting shaft is rotatably connected to the abutting plate. The two groups of rollers are symmetrically arranged. The middle part of the abutting plate is arranged in an arc surface structure. The sliding rod is slidably connected to the fixing plate.

[0007] Specifically, the protection mechanism includes columns and baffles. Two groups of columns are symmetrically and fixedly connected to the base. The baffles are snap-fitted on the columns. A sleeve is sleeved on the columns. A protection plate is fixedly installed on the sleeve. A second hydraulic rod is fixedly installed in the protection plate. The telescopic end of the second hydraulic rod is fixedly connected to a sliding plate. The cross-sectional length of the protection plate is greater than that of the sliding plate. The sliding plate is slidably connected to the protection plate.

[0008] Specifically, the pressing mechanism includes a fixed crossbeam and a hydraulic cylinder. The tops of the two columns are fixedly connected to the fixed crossbeam. A hydraulic cylinder is fixedly installed on the fixed crossbeam. The telescopic end of the hydraulic cylinder is fixedly connected to a lower pressing plate.

[0009] Specifically, the installation mechanism includes a fixed block and a bottom plate. The fixed block is fixedly installed at the top of the base. The fixed block is fixedly connected to the bottom plate. A cushion plate is fixedly installed on the bottom plate. The bottom plate is arranged in an inclined plane structure. The cushion plate is located at the central part of the bottom plate.

[0010] Specifically, the pushing mechanism includes a support frame and a clamping plate. The clamping plate is snap-fitted on the base. The support frame is fixedly installed on the clamping plate. A chute is provided on the support frame. A third hydraulic rod is fixedly installed on the support frame. The telescopic end of the third hydraulic rod is fixedly connected to a connecting rod. The connecting rod is fixedly connected to a pushing plate. A rotating rod is rotatably connected to the base. A resisting rod is threadedly connected to the rotating rod. The resisting rod is snap-fitted with the clamping plate. A clamping groove is provided on the base. The resisting rod is slidably connected to the base. The clamping plate is snap-fitted and installed at the clamping groove part. The connecting rod slides at the chute part. The pushing plate is slidably connected to the support frame.

[0011] The beneficial effects of the present invention are:

[0012] (1) A device for testing the compressive strength of a bridge concrete anti-collision guardrail according to the present invention installs a pushing mechanism at the bottom end of a base, and then places a concrete compression test block on the pushing mechanism. By starting the pushing mechanism, the test block can be pushed onto the installation mechanism, facilitating the transportation of the test block. That is, the operator first snaps the clamping plate fixed on the support frame onto the slot provided at the bottom end of the base, and then uses a tool to rotate the rotating rod installed on the base. When the rotating rod rotates inside the base, it can drive the displacement of the abutting rod threadedly connected to it. Since the abutting rod is limited by the base, when the end of the abutting rod slides to the slot position, the end of the abutting rod can be snap-fitted with the protruding part of the clamping plate, thereby limiting the clamping plate in the slot position by the abutting rod, which also facilitates the operator to disassemble and assemble the support frame during use. Then the operator places the concrete compression test block on the top of the support frame and starts the control switch of the third hydraulic rod, which can drive its telescopic end to drive the connecting rod to slide towards the base. A pushing plate is fixedly installed on the connecting rod. When the pushing plate contacts the test block placed at the top end of the support frame during sliding, it can push the test block to slide onto the cushion plate. When the test block is on the cushion plate, starting the third hydraulic rod again can drive the connecting rod to drive the pushing plate to reset, facilitating the transportation of the test blocks for subsequent tests and reducing the manual handling burden of the operator.

[0013] (2) A device for testing the compressive strength of a bridge concrete anti-collision guardrail according to the present invention. By turning on the control switch of the positioning mechanism, it can be made to contact the test block during displacement, facilitating fixing the test block at the central part of the installation mechanism and positioning the test block at the same time, preventing displacement during the test. That is, when the concrete compression test block is on the cushion plate, the operator can start the control switch of the first hydraulic rod. The first hydraulic rod is installed inside the fixing plate provided on the base. When it is started, it can drive the sliding rod fixed to its telescopic end to slide inside the fixing plate and the sleeve rod. Since a retaining plate is installed at the end of the sliding rod away from the fixing plate, and two groups of rollers are rotatably installed inside the retaining plate. When the two sliding rods drive the two retaining plates to slide towards each other, the rollers may contact the side wall of the test block with a cylindrical structure during displacement. The rollers generate friction with the side wall of the test block and will rotate along the side wall of the connecting shaft fixed inside the retaining plate. And when the rollers move with the retaining plate, they can also push the test block to the central part of the cushion plate. Thus, the test block can be in a fixed state under the limiting action of the two retaining plates and multiple groups of rollers, which is beneficial to preventing the test block from shifting in position during the pressure test.

[0014] (3) For the anti - compressive strength testing device of the bridge concrete anti - collision guardrail described in the present invention, when the protection mechanism is started to shield the periphery of the test block, and when the pressing mechanism touches the top of the test block, it can prevent the fragments generated by the breakage of the test block from flying out, thus facilitating the protection of the operator. That is, after fixing the test block, the control switch of the second hydraulic rod can be started, and the telescopic end of the second hydraulic rod drives the sliding plate to slide within the protection plate, so that the sliding plate and the protection plate shield the side where the test block is loaded. Since the baffle is snap - fitted on the side wall of the column installed on the base, the settings of the baffle, the protection plate and the sliding plate can shield the periphery of the test block, which is conducive to preventing the situation that the test block breaks during the pressure test and the fragments fly out and injure the operator. Start the hydraulic cylinder installed on the fixed cross - beam, and its telescopic end drives the lower pressing plate to move downward. A pressure sensor is arranged on the lower pressing plate, and the pressure sensor is used to measure the pressure applied to the test block during loading to ensure the accuracy of the test. Then, the data acquisition device converts these measurement results into digital signals and transmits them to the control system for real - time monitoring and recording, thereby realizing the precise control of the test process. Description of the Drawings

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the anti - compressive strength testing device of the bridge concrete anti - collision guardrail provided by the present invention;

[0017] Figure 2 It is a schematic diagram of the connection structure between the base and the fixed plate of the present invention;

[0018] Figure 3 For Figure 2 The enlarged schematic diagram of the structure of part A shown;

[0019] Figure 4 It is a schematic diagram of the connection structure between the sleeve and the protection plate of the present invention;

[0020] Figure 5 It is a schematic diagram of the connection structure between the sliding plate and the second hydraulic rod of the present invention;

[0021] Figure 6 It is a schematic diagram of the connection structure between the support frame and the clamping plate of the present invention;

[0022] Figure 7 For Figure 6 The enlarged schematic diagram of the structure of part B shown;

[0023] Figure 8 It is a schematic diagram of the connection structure between the rotating rod and the resisting plate of the present invention;

[0024] Figure 9 It is a schematic diagram of the connection structure between the connecting rod and the pushing plate of the present invention;

[0025] Figure 10 Schematic diagram of the connection structure between the sliding rod and the abutment plate of the present invention;

[0026] Figure 11 Schematic diagram of the connection structure between the abutment plate and the roller of the present invention;

[0027] Figure 12 is Figure 11 Enlarged schematic diagram of the partial structure C shown.

[0028] In the figure: 1, base; 2, positioning mechanism; 201, fixing plate; 202, sleeve rod; 203, sliding rod; 204, abutment plate; 205, empty slot; 206, roller; 207, coupling shaft; 208, first hydraulic rod; 3, protection mechanism; 301, column; 302, baffle; 303, sleeve; 304, protection plate; 305, sliding plate; 306, second hydraulic rod; 4, pressing mechanism; 401, fixed cross beam; 402, hydraulic cylinder; 403, lower pressing plate; 5, pushing mechanism; 501, support frame; 502, connecting rod; 503, pushing plate; 504, chute; 505, clamping plate; 506, rotating rod; 507, abutting rod; 508, clamping slot; 509, third hydraulic rod; 6, installation mechanism; 601, fixing block; 602, bottom plate; 603, cushion plate. Specific embodiments

[0029] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0030] As Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 11 shown, a compressive strength testing device for a bridge concrete anti-collision guardrail according to the present invention includes a base 1, a protection mechanism 3 and an installation mechanism 6 are fixed on the base 1; a pressing mechanism 4 is installed on the protection mechanism 3; positioning mechanisms 2 are fixed on both sides of the installation mechanism 6; a pushing mechanism 5 is snap-fitted and installed on the base 1;

[0031] Specifically, as Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 10 , Figure 11 and Figure 12As shown in the figure, the positioning mechanism 2 includes a fixed plate 201 and a sleeve rod 202. Two fixed plates 201 are symmetrically and fixedly connected to the base 1. A sleeve rod 202 is fixedly connected to the fixed plate 201. A sliding rod 203 is slidably connected to the sleeve rod 202. A first hydraulic rod 208 is fixedly installed on the fixed plate 201. The telescopic end of the first hydraulic rod 208 is fixedly connected to the sliding rod 203. A pressing plate 204 is fixedly installed on the sliding rod 203. Two empty slots 205 are symmetrically arranged on the pressing plate 204. A roller 206 is rotatably installed at the position of the empty slot 205. A connecting shaft 207 is fixedly installed on the roller 206. The connecting shaft 207 is rotatably connected to the pressing plate 204. The two groups of rollers 206 are symmetrically arranged. The middle part of the pressing plate 204 is arranged in an arc surface structure. The sliding rod 203 is slidably connected to the fixed plate 201. By turning on the control switch of the positioning mechanism 2, it can be made to contact the test block during displacement, thereby facilitating the fixing of the test block at the central part of the installation mechanism 6 while also positioning the test block to prevent displacement during the test process. That is, when the concrete compression test block is located on the cushion plate 603, the operator can turn on the control switch of the first hydraulic rod 208. The first hydraulic rod 208 is installed inside the fixed plate 201 provided on the base 1. When it is started, it can drive the sliding rod 203 fixed to the telescopic end to slide inside the fixed plate 201 and the sleeve rod 202. Since a pressing plate 204 is installed at the end of the sliding rod 203 away from the fixed plate 201, and two groups of rollers 206 are rotatably installed inside the pressing plate 204. When the two sliding rods 203 drive the two pressing plates 204 to slide towards each other, the rollers 206 may contact the side wall of the test block arranged in a cylindrical structure during displacement. The rollers 206 generate friction with the side wall of the test block and will rotate along the side wall of the connecting shaft 207 fixed inside the pressing plate 204. And when the rollers 206 move with the pressing plate 204, they can also push the test block to the central part of the cushion plate 603. Thus, the test block can be in a fixed state under the limiting action of the two pressing plates 204 and multiple groups of rollers 206, which is beneficial to preventing the test block from shifting during the pressure test process.

[0032] Specifically, such as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, the protection mechanism 3 includes a column 301 and a baffle 302. Two groups of columns 301 are symmetrically and fixedly connected to the base 1. The baffle 302 is snap-fitted on the column 301. A sleeve 303 is sleeved on the column 301. A protection plate 304 is fixedly installed on the sleeve 303. A second hydraulic rod 306 is fixedly installed inside the protection plate 304. The telescopic end of the second hydraulic rod 306 is fixedly connected to a sliding plate 305. The cross-sectional length of the protection plate 304 is greater than the cross-sectional length of the sliding plate 305. The sliding plate 305 is slidably connected to the protection plate 304.

[0033] Specifically, as Figure 1 , Figure 2 and Figure 6 As shown, the pressing mechanism 4 includes a fixed crossbeam 401 and a hydraulic cylinder 402. The top ends of the two groups of columns 301 are fixedly connected to the fixed crossbeam 401. The hydraulic cylinder 402 is fixedly installed on the fixed crossbeam 401. The telescopic end of the hydraulic cylinder 402 is fixedly connected to a lower pressing plate 403. When the protection mechanism 3 is started to block the periphery of the test block, and when the pressing mechanism 4 touches the top of the test block, it can prevent the fragments generated by the rupture of the test block from flying out, thus facilitating the protection of the operator. That is: after fixing the test block, the control switch of the second hydraulic rod 306 can be started. The telescopic end of the second hydraulic rod 306 drives the sliding plate 305 to slide inside the protection plate 304, so that the sliding plate 305 and the protection plate 304 block the side where the test block is loaded. Since the baffle 302 is snap-fitted on the side wall of the column 301 installed on the base 1, the baffle 302, the protection plate 304 and the sliding plate 305 can block the periphery of the test block, which is beneficial to preventing the situation that the test block breaks during the pressure test and the fragments fly out and injure the operator; start the hydraulic cylinder 402 installed on the fixed crossbeam 401 to drive the lower pressing plate 403 to move down. A pressure sensor is provided on the lower pressing plate 403. The pressure sensor is used to measure the pressure applied to the test block during loading to ensure the accuracy of the test. Then, the data acquisition device converts these measurement results into digital signals and transmits them to the control system for real-time monitoring and recording, so as to realize the precise control of the test process.

[0034] Specifically, as Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, the installation mechanism 6 includes a fixing block 601 and a bottom plate 602. A fixing block 601 is fixedly installed at the top end of the base 1. A bottom plate 602 is fixedly connected to the fixing block 601. A cushion plate 603 is fixedly installed on the bottom plate 602. The bottom plate 602 is arranged in an inclined plane structure, and the cushion plate 603 is located at the central part of the bottom plate 602.

[0035] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the pushing mechanism 5 includes a support frame 501 and a clamping plate 505. The clamping plate 505 is snap-connected to the base 1. The support frame 501 is fixedly installed on the clamping plate 505. A chute 504 is provided on the support frame 501. A third hydraulic rod 509 is fixedly installed on the support frame 501. The telescopic end of the third hydraulic rod 509 is fixedly connected to a connecting rod 502. A push plate 503 is fixedly connected to the connecting rod 502. A rotating rod 506 is rotatably connected to the base 1. A resisting rod 507 is threadedly connected to the rotating rod 506. The resisting rod 507 is snap-connected to the clamping plate 505. A slot 508 is provided on the base 1. The resisting rod 507 is slidably connected to the base 1. The clamping plate 505 is snap-fitted and installed at the slot 508. The connecting rod 502 slides in the chute 504. The push plate 503 is slidably connected to the support frame 501. The pushing mechanism 5 is installed at the bottom end of the base 1. Then, the concrete compression test block is placed on the pushing mechanism 5. By starting the pushing mechanism 5, the test block can be pushed onto the installation mechanism 6, thus facilitating the transportation of the test block. That is, the operator first snap-fits the clamping plate 505 fixed on the support frame 501 to the slot 508 provided at the bottom end of the base 1. Then, the operator uses a tool to rotate the rotating rod 506 installed on the base 1. When the rotating rod 506 rotates inside the base 1, it can drive the displacement of the resisting rod 507 threadedly connected to it. Since the resisting rod 507 is limited by the base 1, when the end of the resisting rod 507 slides to the slot 508, the end of the resisting rod 507 can be snap-connected to the protruding part of the clamping plate 505, thereby limiting the clamping plate 505 in the slot 508 by the resisting rod 507, which also facilitates the operator to disassemble and assemble the support frame 501 during use. Then, the operator places the concrete compression test block on the top of the support frame 501. By starting the control switch of the third hydraulic rod 509, its telescopic end can drive the connecting rod 502 to slide towards the base 1. The push plate 503 is fixedly installed on the connecting rod 502. When the push plate 503 contacts the test block placed at the top end of the support frame 501 during sliding, it can push the test block to slide onto the cushion plate 603. When the test block is located on the cushion plate 603, by starting the third hydraulic rod 509 again, the connecting rod 502 can drive the push plate 503 to reset, thus facilitating the transportation of the test blocks for subsequent tests and reducing the burden on the operator for manual handling.

[0036] When the present invention is in use, first, the operator first snap-fits the clamping plate 505 fixed on the support frame 501 to the position of the card slot 508 provided at the bottom end of the base 1. Then, the operator uses a tool to rotate the rotating rod 506 installed on the base 1. When the rotating rod 506 rotates inside the base 1, it can drive the displacement of the abutting rod 507 threadedly connected thereto. Since the abutting rod 507 is limited by the base 1, when the end of the abutting rod 507 slides to the position of the card slot 508, the end of the abutting rod 507 can be snap-fitted to the protruding part of the clamping plate 505, so that the abutting rod 507 limits the clamping plate 505 in the card slot 508, which is convenient for the operator to disassemble and assemble the support frame 501 during use. Then, the operator places the concrete compressive test block on the top of the support frame 501 and starts the control switch of the third hydraulic rod 509, so that its telescopic end drives the connecting rod 502 to slide towards the base 1. A push plate 503 is fixedly installed on the connecting rod 502. When the push plate 503 contacts the test block placed at the top end of the support frame 501 during sliding, it can push the test block to slide onto the cushion plate 603. When the test block is located on the cushion plate 603, start the third hydraulic rod 509 again, so that the connecting rod 502 drives the push plate 503 to reset, which is convenient for conveying the test blocks for subsequent tests and reduces the burden on the operator for manual handling;

[0037] When the concrete compressive test block is located on the cushion plate 603, the operator can start the control switch of the first hydraulic rod 208. The first hydraulic rod 208 is installed inside the fixed plate 201 provided on the base 1. When it is started, it can drive the sliding rod 203 fixed to its telescopic end to slide inside the fixed plate 201 and the sleeve rod 202. Since a abutting plate 204 is installed at the end of the sliding rod 203 away from the fixed plate 201, and two groups of rollers 206 are rotatably installed inside the abutting plate 204. When the two sliding rods 203 drive the two abutting plates 204 to slide towards each other, the rollers 206 may contact the side wall of the test block arranged in a cylindrical structure during displacement. The rollers 206 generate friction with the side wall of the test block and will rotate along the side wall of the connecting shaft 207 fixed inside the abutting plate 204. And when the rollers 206 displace with the abutting plate 204, they can also push the test block to the central part of the cushion plate 603, so that the test block can be in a fixed state under the limiting action of the two abutting plates 204 and multiple groups of rollers 206, which is beneficial to preventing the test block from shifting in position during the pressure test;

[0038] After fixing the test block, the control switch of the second hydraulic rod 306 can be activated. The telescopic end of the second hydraulic rod 306 drives the sliding plate 305 to slide within the protective plate 304, thereby covering the side of the test block for loading. Since the baffle 302 is snap-fitted to the side wall of the column 301 installed on the base 1, the baffle 302, the protective plate 304, and the sliding plate 305 can cover all around the test block, which is beneficial to preventing the situation that the test block breaks during the pressure test and the fragments fly out and injure the operator; activate the hydraulic cylinder 402 installed on the fixed crossbeam 401 to drive the lower pressing plate 403 to move downward by its telescopic end. A pressure sensor is provided on the lower pressing plate 403, and the pressure sensor is used to measure the pressure applied to the test block during loading to ensure the accuracy of the test. Then, the data acquisition device converts these measurement results into digital signals and transmits them to the control system for real-time monitoring and recording, thereby realizing the precise control of the test process.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed invention.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A compressive strength testing device for the anti-collision guardrail of bridge concrete, characterized in that It includes a base (1), on which a protection mechanism (3) and a mounting mechanism (6) are fixed; a pressing mechanism (4) is mounted on the protection mechanism (3); positioning mechanisms (2) are fixed on both sides of the mounting mechanism (6); a pushing mechanism (5) is snap-fitted and mounted on the base (1). The positioning mechanism (2) includes a fixing plate (201) and a sleeve rod (202). Two fixing plates (201) are symmetrically and fixedly connected to the base (1). A sleeve rod (202) is fixedly connected to the fixing plate (201). A sliding rod (203) is slidably connected to the sleeve rod (202). A first hydraulic rod (208) is fixedly installed on the fixing plate (201). The telescopic end of the first hydraulic rod (208) is fixedly connected to the sliding rod (203). A pressing plate (204) is fixedly installed on the sliding rod (203). Two empty slots (205) are symmetrically arranged on the pressing plate (204). A roller (206) is rotatably arranged at the position of the empty slot (205). A connecting shaft (207) is fixedly installed on the roller (206). The connecting shaft (207) is rotatably connected to the pressing plate (204).

2. The compressive strength testing device for the bridge concrete anti-collision guardrail according to claim 1, wherein: The two groups of rollers (206) are symmetrically arranged. The middle part of the pressing plate (204) is arranged in an arc surface structure. The sliding rod (203) is slidably connected to the fixing plate (201).

3. The compressive strength testing device for a bridge concrete anti-collision guardrail according to claim 1, characterized in that: The protection mechanism (3) includes a column (301) and a baffle (302). Two groups of columns (301) are symmetrically and fixedly connected to the base (1). The baffle (302) is snap-fitted and mounted on the column (301). A sleeve (303) is sleeved on the column (301). A protection plate (304) is fixedly installed on the sleeve (303). A second hydraulic rod (306) is fixedly installed inside the protection plate (304). The telescopic end of the second hydraulic rod (306) is fixedly connected to a sliding plate (305).

4. The compressive strength testing device for a bridge concrete anti-collision guardrail according to claim 3, characterized in that: The cross-sectional length of the protection plate (304) is greater than the cross-sectional length of the sliding plate (305). The sliding plate (305) is slidably connected to the protection plate (304).

5. The compressive strength testing device for a bridge concrete anti-collision guardrail according to claim 4, characterized in that: The pressing mechanism (4) includes a fixed cross beam (401) and a hydraulic cylinder (402). The top ends of the two groups of columns (301) are fixedly connected to the fixed cross beam (401). A hydraulic cylinder (402) is fixedly installed on the fixed cross beam (401). The telescopic end of the hydraulic cylinder (402) is fixedly connected to a lower pressing plate (403).

6. The compressive strength testing device for the bridge concrete anti-collision guardrail according to claim 1, characterized in that: The mounting mechanism (6) includes a fixed block (601) and a bottom plate (602). The fixed block (601) is fixedly installed at the top end of the base (1). The bottom plate (602) is fixedly connected to the fixed block (601). A cushion plate (603) is fixedly installed on the bottom plate (602).

7. The compressive strength testing device for the bridge concrete anti-collision guardrail according to claim 6, characterized in that: The bottom plate (602) is arranged in an inclined surface structure. The cushion plate (603) is located at the central part of the bottom plate (602).

8. A compressive strength testing device for a bridge concrete anti-collision guardrail according to claim 1, characterized in that: The pushing mechanism (5) includes a support frame (501) and a clamping plate (505). The clamping plate (505) is snap-connected to the base (1), and the support frame (501) is fixedly installed on the clamping plate (505). A chute (504) is provided on the support frame (501). A third hydraulic rod (509) is fixedly installed on the support frame (501). The telescopic end of the third hydraulic rod (509) is fixedly connected to a connecting rod (502). A push plate (503) is fixedly connected to the connecting rod (502). A rotating rod (506) is rotatably connected to the base (1). A resisting rod (507) is threadedly connected to the rotating rod (506). The resisting rod (507) is snap-connected to the clamping plate (505). A clamping groove (508) is provided on the base (1).

9. The compressive strength testing device for the bridge concrete anti-collision guardrail according to claim 8, characterized in that: The resisting rod (507) is slidably connected to the base (1), and the clamping plate (505) is snap-fitted and installed at the position of the clamping groove (508).

10. The compressive strength testing device for the bridge concrete anti-collision guardrail according to claim 9, characterized in that: The connecting rod (502) slides at the position of the chute (504), and the push plate (503) is slidably connected to the support frame (501).

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