Building material impact resistance detection device

Abstract

The utility model relates to the technical field of impact performance detection, in particular to a building material impact resistance detection device which comprises a workbench. An adjustable stable clamping device; an automatic stretching device; a sliding rope; a movable pulley and an impact bin. The automatic stretching device is used for controlling the movable pulley on the sliding rope to lift the impact bin in a labor-saving mode, when the impact bin is lifted under the same gravity, the effect of better reducing the pressure borne by the output bearing of the air cylinder is achieved, and the problem that the service life of the output shaft of the air cylinder is damaged due to high pressure bearing is solved. A detector can add or reduce weights to or from the impact bin, so that the overall weight of the impact bin can be adjusted and changed, the impact pressure can be adjusted according to building material blocks of different sizes, the applicability of the whole workbench to impact resistance detection of the building material blocks of different sizes is improved, and the working efficiency is improved. The adjustable stable clamping device can elastically clamp building material blocks of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of impact performance detection, in particular to an anti-impact detection device for building materials. Background Art

[0002] Concrete, referred to as "concrete", is a general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials. The term concrete usually refers to cement concrete obtained by mixing cement as a cementitious material, sand and stone as aggregates, and water in a certain proportion. The impact resistance of concrete needs to be tested when it is used. When using the existing concrete impact resistance testing device, the tester needs to pull up the impact device and then make it do free fall to impact the concrete. However, due to the large mass of the impact device, it is more labor-intensive to pull it.

[0003] After searching, a Chinese patent publication number CN219142531U discloses a device for testing the impact resistance of building materials, including a workbench, a support frame is arranged on the top of the workbench, a limit rod is arranged on the upper end surface of the support frame, a support plate is arranged on the top of the limit rod, a lifting cylinder is arranged on the top of the support plate, an electromagnet sucker is arranged on the output end of the lifting cylinder, an iron movable disk is slidably connected to the limit rod, and a punching rod is arranged at the bottom of the movable disk. When the application is working, the lifting cylinder is started, and the lifting cylinder falls so that the electromagnet sucker fits the iron movable disk. At this time, the electromagnet sucker is energized, and the electromagnet sucker absorbs the movable disk. The lifting cylinder works to lift the punching rod, and the concrete block to be tested is placed in the limit slot, and then the clamping plate clamps the concrete under the action of the spring, and then the electromagnet sucker is powered off, and the punching rod falls freely and hits the concrete block to test its strength.

[0004] The above patent has the following technical defects: 1. The weight of the punching rod is fixed, and it is impossible to detect the impact force of different strengths according to different building materials; 2. When the punching force to be tested is large, the selected punching rod has a large weight. For the lifting cylinder that can lift the punching rod, its output shaft bears a large pressure. In the high-frequency lifting test work, the labor-saving structure will cause the cylinder output shaft to be damaged. In view of this, we propose a building material impact resistance detection device. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a building material impact resistance detection device, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a building material impact resistance detection device, including a workbench, an adjustable stable clamping device is arranged on the workbench, the top of the workbench is connected to a sliding rope through an automatic stretching device, a movable pulley is movably connected to the sliding rope, the bottom of the movable pulley is connected to an impact bin through a connecting rope, and a weighting chamber is opened inside the impact bin.

[0006] Preferably, the adjustable stable clamping device includes a motor, the end of the motor is installed on one side of the workbench, the output shaft of the motor is connected to a double-drive roller rod, both ends of the double-drive roller rod are connected to a screw seat through a belt drive, the internal thread of the screw seat is connected to a screw rod, and the end of the screw rod is fixedly connected to a clamp seat.

[0007] Preferably, both ends of the dual-drive roller rod are rotatably connected to the top of the workbench, the end of the screw seat is rotatably connected to the bottom of the workbench, one side of the clamp seat is slidably connected to the workbench through a limit rod, and the other side of the clamp seat is fixedly connected to a clamp plate through a rubber spring.

[0008] Preferably, a protective rubber sleeve is provided on the surface of the impact chamber, and a protective cover is connected to the impact chamber just above the weight-adding cavity.

[0009] Preferably, the automatic stretching device includes an electric cylinder, the surface of which is mounted on the top of a workbench, the output shaft of which is connected to an electromagnet suction cup, and one end of the electromagnet suction cup away from the electric cylinder is magnetically connected to an iron plate.

[0010] Preferably, the surface of the iron plate is slidably connected to a limiting sleeve, an end of the limiting sleeve is fixedly connected to a workbench, and one end of the iron plate away from the electromagnet suction cup is fixedly connected to a buffer washer.

[0011] Preferably, one end of the sliding rope is fixedly connected to the bottom end of the iron plate, and the other end of the sliding rope is installed on the workbench through a connecting column.

[0012] It can be seen from the above technical solutions that the building material impact resistance detection device provided in the embodiments of this specification has at least the following beneficial effects:

[0013] (1) The utility model controls the movable pulley on the sliding rope through the automatic stretching device to lift the impact bin with less effort, thereby achieving the effect of the automatic stretching device lifting the impact bin at low pressure. When lifting the impact bin under the same gravity, the pressure on the cylinder output shaft is better reduced, and the problem of the cylinder output shaft being damaged due to high pressure is reduced. The inspection personnel can add or subtract weights from the impact bin, thereby achieving the effect that the overall weight of the impact bin can be adjusted and changed, so that the impact pressure can be adjusted according to the different sizes of building material blocks, thereby improving the applicability of the workbench as a whole to the impact resistance inspection of building material blocks of different sizes. The adjustable stable clamping device can realize elastic clamping of building material blocks of different sizes.

[0014] (2) The utility model drives the double transmission roller rod to rotate through a motor. The double transmission roller rod drives the two screw seats through the transmission rollers at both ends and the belt to rotate and adjust the two screws at the same time. The two screws drive the two clamping seats to move relatively close to each other as a whole. During the approach, the clamping plates on the rubber springs are used to clamp and position the two sides of the building material block. The distance between the screws can be adjusted, thereby achieving the effect of adjusting the clamping distance between the two sides of the building material block by the two clamping plates, thereby achieving the effect of adaptive clamping and detection of building materials of different sizes by the workbench as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the adjustable stable clamping device in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the automatic stretching device in the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the rubber spring in the utility model.

[0020] In the figure: 1. workbench; 2. adjustable stable clamping device; 21. motor; 22. double transmission roller rod; 23. screw seat; 24. screw rod; 25. clamp seat; 26. rubber spring; 3. automatic stretching device; 31. electric cylinder; 32. electromagnet suction cup; 33. iron plate; 34. limit sleeve seat; 4. sliding rope; 5. movable pulley; 6. impact chamber; 61. protective rubber sleeve; 62. protective cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-Figure 4 As shown, a device for testing the impact resistance of building materials comprises a workbench 1, on which an adjustable stable clamping device 2 is arranged, the top of the workbench 1 is connected to a sliding rope 4 through an automatic stretching device 3, on which a movable pulley 5 is movably connected, and the bottom of the movable pulley 5 is connected to an impact bin 6 through a connecting rope, the arrangement of the movable pulley 5 achieves the effect of the automatic stretching device 3 lifting the impact bin 6 at a low pressure, and then when the impact bin 6 under the same gravity is lifted, the pressure on the cylinder output shaft is better reduced, and the problem of the cylinder output shaft being damaged due to high pressure is reduced, a weighting chamber is provided inside the impact bin 6, and the weighting chamber is used to fill weights, and the testing personnel can add or subtract weights from the impact bin 6, thereby achieving the effect that the overall weight of the impact bin 6 can be adjusted and changed, so that the impact pressure can be adjusted according to the building material blocks of different sizes, thereby improving the applicability of the workbench 1 as a whole for impact resistance testing of building material blocks of different sizes.

[0024] Furthermore, the adjustable stable clamping device 2 includes a motor 21, the end of which is installed on one side of the workbench 1, and the output shaft of the motor 21 is connected to a double-drive roller rod 22. Both ends of the double-drive roller rod 22 are connected to a screw seat 23 through a belt drive. The internal thread of the screw seat 23 is connected to a screw rod 24, and the end of the screw rod 24 is fixedly connected to a clamp seat 25. The double-drive roller rod 22 is driven to rotate by starting the motor 21. The double-drive roller rod 22 drives the two screw seats 23 through the drive rollers and belts at both ends to rotate and adjust the two screw rods 24 at the same time. The two screws 24 drive the two clamp seats 25 to move relatively close to each other as a whole. During the approach, the clamping plates on the rubber springs 26 are used to clamp and position the two sides of the building material block. The distance of the screw rods 24 can be adjusted, thereby achieving the effect of adjusting the clamping distance of the two sides of the building material block by the two clamping plates, thereby achieving the effect of adaptive clamping and detection of building materials of different sizes by the workbench 1 as a whole.

[0025] Furthermore, both ends of the dual-drive roller rod 22 are rotatably connected to the top of the workbench 1, the end of the screw seat 23 is rotatably connected to the bottom of the workbench 1, one side of the clamp seat 25 is slidably connected to the workbench 1 through a limit rod, and the other side of the clamp seat 25 is fixedly connected to a clamp plate through a rubber spring 26. The clamp plate connected by the rubber spring 26 can achieve elastic positioning of both sides of the building material block, thereby avoiding the problem of hard clamping causing damage to both sides of the building material block by hard impact force.

[0026] In addition, a protective rubber sleeve 61 is provided on the surface of the impact chamber 6 , and a protective cover 62 is connected to the impact chamber 6 just above the weight-adding cavity.

[0027] Example 2

[0028] See also Figure 1-Figure 4 As shown, the automatic stretching device 3 includes an electric cylinder 31, the surface of the electric cylinder 31 is installed on the top of the workbench 1, the output shaft of the electric cylinder 31 is connected to an electromagnet suction cup 32, the end of the electromagnet suction cup 32 away from the electric cylinder 31 is magnetically connected to an iron plate 33, the surface of the iron plate 33 is slidably connected to a limiting sleeve 34, which is used to limit and support the iron plate 33, the end of the limiting sleeve 34 is fixedly connected to the workbench 1, and the end of the iron plate 33 away from the electromagnet suction cup 32 is fixedly connected to a buffer gasket. By closing the electromagnet suction cup 32, the electromagnet suction cup 32 loses its magnetic attraction effect on the iron plate 33. The iron plate 33 is affected by the gravity of the impact bin 6 on the movable pulley 5 on the sliding rope 4 and performs free fall downward. The impact bin 6 uses the downward impact force to achieve the effect of impacting the building material block. After the impact, the electromagnet suction cup 32 is controlled to move downward by the electric cylinder 31. After moving downward, the electromagnet suction cup 32 is started. The electromagnet suction cup 32 generates magnetic attraction and adsorbs the iron plate 33. After adsorption, the electromagnet suction cup 32 is controlled to move up and reset by the electric cylinder 31. During the resetting period, according to the labor-saving principle of the movable pulley 5, the effect of driving the electromagnet suction cup 32 to move up with low pressure is achieved. During the upward movement of the electromagnet suction cup 32, the sliding rope 4 on the iron plate 33 drives the movable pulley 5 on the impact bin 6 to be lifted and reset as a whole, thereby realizing automatic and labor-saving anti-impact detection of building material blocks.

[0029] Furthermore, one end of the sliding rope 4 is fixedly connected to the bottom end of the iron plate 33, and the other end of the sliding rope 4 is mounted on the workbench 1 through a connecting column.

[0030] When the utility model is used, a building material impact resistance detection device is placed on a workbench 1 when a block made of building materials needs to be subjected to impact resistance detection. The double transmission roller rod 22 is driven to rotate by starting the motor 21. The double transmission roller rod 22 is driven by the transmission rollers at both ends and the belt to drive two screw seats 23 to rotate and adjust the two screws 24 at the same time. The two screws 24 drive the two clamp seats 25 to move relatively close to each other as a whole. During the approach, the clamping plates on the rubber springs 26 are used to clamp and position the two sides of the building material block. The distance of the screws 24 can be adjusted, thereby achieving the effect of adjusting the clamping distance between the two sides of the building material block by the two clamping plates, thereby achieving the effect of adaptive clamping and detection of building materials of different sizes by the workbench 1 as a whole. At the same time, the clamping plates connected by the rubber springs 26 can realize elastic positioning of the two sides of the building material block, thereby avoiding the problem that the two sides of the building material block are damaged by hard impact force due to hard clamping.

[0031] After clamping the building material block, the electromagnetic suction cup 32 is closed, and the electromagnetic suction cup 32 loses its magnetic attraction effect on the iron plate 33. The iron plate 33 is affected by the gravity of the impact bin 6 on the movable pulley 5 on the sliding rope 4 and performs free fall downward. The impact bin 6 uses the downward impact force to achieve the effect of impacting the building material block. After the impact, the electromagnetic suction cup 32 is controlled to move downward by the electric cylinder 31. After moving downward, the electromagnetic suction cup 32 is started, and the electromagnetic suction cup 32 generates magnetic attraction and adsorbs the iron plate 33. After adsorption, the electromagnetic suction cup 32 is controlled by the electric cylinder 31 to move upward and reset. During the reset period, the movable pulley 5 saves effort. The principle is to achieve the effect of low-pressure driving the electromagnet suction cup 32 to move upward. During the upward movement of the electromagnet suction cup 32, the sliding rope 4 on the iron plate 33 drives the movable pulley 5 to lift and reset the impact bin 6 as a whole, thereby realizing automatic and labor-saving anti-impact detection of building material blocks. At the same time, the detection personnel can open the protective cover 62 to add or subtract weights to the impact bin 6, thereby achieving the effect that the overall weight of the impact bin 6 can be adjusted and changed, so that the impact pressure can be adjusted according to the building material blocks of different sizes, thereby improving the applicability of the overall workbench 1 to the anti-impact detection of building material blocks of different sizes.

[0032] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.

Claims

1. A device for testing the impact resistance of building materials, comprising a workbench (1), characterized in that: The workbench (1) is provided with an adjustable stable clamping device (2), the top of the workbench (1) is connected to a sliding rope (4) through an automatic stretching device (3), a movable pulley (5) is movably connected to the sliding rope (4), the bottom of the movable pulley (5) is connected to an impact bin (6) through a connecting rope, and a weighting chamber is provided inside the impact bin (6); the adjustable stable clamping device (2) comprises a motor (21), the end of the motor (21) is mounted on one side of the workbench (1), the output shaft of the motor (21) is connected to a double transmission roller rod (22), both ends of the double transmission roller rod (22) are connected to a screw seat (23) through a belt drive, the internal thread of the screw seat (23) is connected to a screw rod (24), and the end of the screw rod (24) is fixedly connected to a clamping seat (25).

2. The device for detecting the impact resistance of building materials according to claim 1, characterized in that: Both ends of the dual transmission roller rod (22) are rotatably connected to the top of the workbench (1), the end of the screw seat (23) is rotatably connected to the bottom of the workbench (1), one side of the clamp seat (25) is slidably connected to the workbench (1) via a limit rod, and the other side of the clamp seat (25) is fixedly connected to a clamp plate via a rubber spring (26).

3. The device for detecting the impact resistance of building materials according to claim 1, characterized in that: The surface of the impact chamber (6) is covered with a protective rubber sleeve (61), and the impact chamber (6) is located directly above the weight-adding cavity and is connected to a protective cover (62).

4. The device for detecting the impact resistance of building materials according to claim 1, characterized in that: The automatic stretching device (3) comprises an electric cylinder (31), the surface of the electric cylinder (31) is mounted on the top of the workbench (1), the output shaft of the electric cylinder (31) is connected to an electromagnet suction cup (32), and one end of the electromagnet suction cup (32) away from the electric cylinder (31) is magnetically connected to an iron plate (33).

5. The device for detecting the impact resistance of building materials according to claim 4, characterized in that: The surface of the iron plate (33) is slidably connected to a limiting sleeve (34), the end of the limiting sleeve (34) is fixedly connected to the workbench (1), and one end of the iron plate (33) away from the electromagnet suction cup (32) is fixedly connected to a buffer washer.

6. The device for detecting the impact resistance of building materials according to claim 5, characterized in that: One end of the sliding rope (4) is fixedly connected to the bottom end of the iron plate (33), and the other end of the sliding rope (4) is installed on the workbench (1) through a connecting column.

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