A mortar compressive strength detection device

Abstract

This application belongs to the field of strength testing technology and discloses a mortar compressive strength testing device. The device includes a protective shell, with an electric push rod installed in an installation groove on the upper surface of the shell. A connecting plate is fixedly connected to the end of the piston rod of the electric push rod. Side connecting rods are fixedly connected to both sides of the connecting plate, and an optical axis is fixedly connected to the end of the side connecting rod away from the connecting plate. Side plates are provided on both sides of the protective shell, and one side of each side plate has horizontal and vertical grooves and a bending groove. During testing, a closed space is formed. When the optical axis slides from the bending groove into the bottom of the horizontal and vertical grooves, the rectangular door panels close tightly, effectively preventing the mortar sample from breaking and splashing, thus preventing injury to workers. Furthermore, during the upward movement of the pressure sensor, an auxiliary plate blocks the optical axis, keeping the two rectangular door panels in contact, further preventing residual fragments from splashing and improving the safety of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of strength testing technology, and in particular to a mortar compressive strength testing device. Background Technology

[0002] In the field of construction engineering, mortar compressive strength is one of the key indicators for measuring the performance of building materials. It is directly related to the structural safety and service life of buildings. Therefore, accurate testing of mortar compressive strength has become an important part of engineering quality control, and various mortar compressive strength testing equipment has emerged. Regarding the aforementioned technologies, the inventors believe that the following defects exist: Currently, most equipment lacks an effective protective structure. When pressurizing mortar test blocks, the fragments generated by the test block breakage are easily splashed, causing accidental injury to the operators. Although some equipment is equipped with simple protective baffles, the opening and closing of the baffles mostly depends on manual operation. If the baffles are forgotten to be closed or not closed in time during the testing process, there are still safety hazards. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a mortar compressive strength testing device.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a mortar compressive strength testing device, comprising a protective shell, an electric push rod installed in an installation groove on the upper surface of the protective shell, a connecting plate fixedly connected to the end of the piston rod of the electric push rod, side connecting rods fixedly connected to both sides of the connecting plate, an optical axis fixedly connected to the end of the side connecting rod away from the connecting plate, side plates respectively provided on both sides of the protective shell, a horizontal and vertical groove and a bending groove provided on one side of the side plate, the optical axis inserted inside the horizontal and vertical groove, two rectangular sleeves provided on the upper part of the protective shell, a diagonal rod provided on one side of each rectangular sleeve, and an auxiliary plate provided inside the side plate.

[0005] By adopting the above technical solution, the driving force of the electric push rod is transmitted to the optical axis through the connecting plate and the side connecting rod. The sliding of the optical axis in the horizontal and vertical grooves and the bending groove can drive the side plate to move, thereby realizing the opening and closing of the rectangular door panel. The auxiliary plate plays a limiting and guiding role for the optical axis, ensuring the orderly progress of the equipment testing process.

[0006] Furthermore, the auxiliary plate is located in an embedded groove inside the side plate, and a rotating shaft is inserted inside the auxiliary plate. The rotating shaft is inserted into a circular hole on the surface of the side plate, and the auxiliary plate is rotatably connected to the side plate through the rotating shaft. The rotating shaft is close to the top of the auxiliary plate.

[0007] By adopting the above technical solution, the auxiliary plate can rotate flexibly around the axis. During the movement of the optical axis, it can be pushed open by the optical axis and reset under the action of gravity, thereby effectively blocking the optical axis during detection, ensuring that the rectangular door panel remains tightly closed and improving the safety of the equipment.

[0008] Furthermore, the surface of the protective shell is provided with two symmetrically arranged rectangular door panels, which are fixedly connected by fixing rods and side plates.

[0009] By adopting the above technical solution, the movement of the side panel will drive the rectangular door panel to move synchronously, thereby adjusting the distance between the two rectangular door panels. During testing, the panel is tightly closed to form a closed space to prevent fragments from flying. After testing, the panel is opened to facilitate observation and replacement of the test piece.

[0010] Furthermore, each of the rectangular sleeves is equipped with a fixed vertical rod inside, the bottom end of which is fixedly connected to the protective shell, and the rectangular sleeve and the fixed vertical rod are slidably connected. A second U-shaped block is fixedly connected to one side of the rectangular sleeve, and a first U-shaped block is fixedly connected to the upper surface of the side plate. The two ends of the diagonal rod are respectively inserted into the interior of the second U-shaped block and the first U-shaped block, and the diagonal rod is rotatably connected to the first U-shaped block and the second U-shaped block through a pivot pin.

[0011] By adopting the above technical solution, the sliding of the rectangular sleeve on the fixed vertical rod, combined with the rotational connection between the diagonal rod and U-shaped block one and U-shaped block two, can convert the gravity of the rectangular sleeve into a force that drives the side panel to move, thereby realizing the automatic opening of the rectangular door panel after the detection is completed and improving the convenience of operation.

[0012] Furthermore, the two side connecting rods are respectively inserted into two side slots opened on both sides of the protective shell, and the side connecting rods and the protective shell are slidably connected.

[0013] By adopting the above technical solution, the side groove provides guidance and limit for the movement of the side connecting rod, ensuring that the side connecting rod can stably transmit driving force and drive the optical axis to slide precisely in the horizontal and vertical grooves and bending grooves, thus ensuring the coordination of the movement of each component.

[0014] Furthermore, a rectangular rod is inserted into a rectangular groove inside the side plate, one end of the rectangular rod is fixedly connected to the protective shell, and the side plate and the rectangular rod are slidably connected.

[0015] By adopting the above technical solution, the cooperation between the rectangular rod and the rectangular groove guides the movement of the side panel, prevents the side panel from shifting during the movement, and ensures that the rectangular door panel can accurately perform the opening and closing action.

[0016] Furthermore, a pressure sensor is provided below the connecting plate, and a spring is fixedly connected between the connecting plate and the pressure sensor. A placement platform is installed inside the protective shell, and the placement platform is located below the pressure sensor.

[0017] By adopting the above technical solution, the placement platform provides a stable placement position for the mortar test block, and the spring can play a buffering role during the pressure application process, reducing the impact of instantaneous impact on the pressure sensor, enabling the pressure sensor to monitor the pressure applied to the test block more accurately and ensuring the accuracy of the test data.

[0018] Furthermore, two longitudinal grooves on the surface of the connecting plate are respectively inserted with longitudinal sliding rods, the bottom ends of the two longitudinal sliding rods are fixedly connected to pressure sensors, and the longitudinal sliding rods are slidably connected to the connecting plate.

[0019] By adopting the above technical solution, the sliding cooperation between the longitudinal slide bar and the connecting plate restricts the movement direction of the pressure sensor, ensuring that the pressure sensor remains stable during up and down movement and avoiding the impact of shaking on the accuracy of pressure detection.

[0020] In summary, this utility model has the following beneficial effects: 1. In this application, the protective shell, rectangular door panel and side panel are combined to form a closed space during the testing process. When the optical axis slides from the bending groove into the bottom of the horizontal and vertical grooves, the rectangular door panel is tightly closed, which can effectively prevent the mortar test block from breaking and splashing and causing injury to the staff. In addition, during the upward movement of the pressure sensor, the auxiliary plate blocks the optical axis, keeping the two rectangular door panels in contact, further avoiding the splashing of residual fragments and greatly improving the safety of the equipment. 2. In this application, the spring that is fixedly connected between the connecting plate and the pressure sensor can play a buffering role when the electric push rod applies pressure, reducing the impact of instantaneous impact on the test results, so that the pressure sensor can more accurately monitor the pressure applied to the mortar test block; 3. In this application, the electric push rod serves as the driving component. The extension and retraction of its piston rod can drive the connecting plate, side connecting rod, and optical shaft to achieve automatic opening and closing of the rectangular door panel and automatic application of pressure, eliminating the need for manual operation and simplifying the testing process. In addition, when the connecting plate returns to its initial position after testing, the side plate drives the rectangular door panel to move automatically to a suitable distance under the gravity of the rectangular sleeve, making it easier for staff to observe the internal condition of the protective shell and replace the test piece, thus improving testing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the side plate and rectangular sleeve in this utility model; Figure 3This is a schematic diagram of the side plate and auxiliary plate in this utility model; Figure 4 This is a schematic diagram of the connecting plate and side connecting rod in this utility model; Figure 5 This is a schematic diagram of the side panel and rectangular door panel in this utility model; In the picture: 1. Protective shell; 2. Electric push rod; 3. Placement platform; 4. Rectangular door panel; 5. Side panel; 6. Connecting plate; 7. Spring 1; 8. Pressure sensor; 9. Longitudinal slide bar; 10. Side connecting rod; 11. Optical axis; 12. Side groove; 13. Horizontal and vertical grooves; 14. Bending groove; 15. Auxiliary plate; 16. Embedded groove; 17. Rectangular groove; 18. U-shaped block 1; 19. U-shaped block 2; 20. Diagonal bar; 21. Rectangular sleeve; 22. Fixed vertical bar; 23. Rectangular rod; 24. Rotating shaft. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] like Figure 1-5 As shown in the embodiment of this application, a mortar compressive strength testing device is disclosed, including a protective shell 1. An electric push rod 2 is installed in an installation groove on the upper surface of the protective shell 1. A connecting plate 6 is fixedly connected to the end of the piston rod of the electric push rod 2. Side connecting rods 10 are fixedly connected to both sides of the connecting plate 6. An optical axis 11 is fixedly connected to the end of the side connecting rod 10 away from the connecting plate 6. Side plates 5 are respectively provided on both sides of the protective shell 1. A horizontal and vertical groove 13 and a bending groove 14 are opened on one side of the side plate 5. The optical axis 11 is inserted into the horizontal and vertical groove 13 and the bending groove 14. Inside the groove 13, two rectangular sleeves 21 are provided above the protective shell 1. Each rectangular sleeve 21 has a diagonal rod 20 on one side. An auxiliary plate 15 is provided inside the side plate 5. The driving force of the electric push rod 2 is transmitted to the optical axis 11 through the connecting plate 6 and the side connecting rod 10. The sliding of the optical axis 11 in the horizontal and vertical grooves 13 and the bending groove 14 can drive the side plate 5 to move, thereby realizing the opening and closing of the rectangular door panel 4. The auxiliary plate 15 plays a limiting and guiding role for the optical axis 11, ensuring the orderly progress of the equipment testing process.

[0024] The auxiliary plate 15 is located in the embedded groove 16 inside the side plate 5. A rotating shaft 24 is inserted inside the auxiliary plate 15. The rotating shaft 24 is inserted into the round hole on the surface of the side plate 5. The auxiliary plate 15 is rotatably connected to the side plate 5 through the rotating shaft 24. The rotating shaft 24 is close to the top of the auxiliary plate 15, so that the auxiliary plate 15 can rotate flexibly around the rotating shaft 24. During the movement of the optical axis 11, it can be pushed open by the optical axis 11 and reset under the action of gravity, thereby effectively blocking the optical axis 11 during detection, ensuring that the rectangular door plate 4 remains in a closed state and improving the safety of the equipment.

[0025] The protective shell 1 has two symmetrically arranged rectangular door panels 4 on its surface. The rectangular door panels 4 are fixedly connected to the side panels 5 by fixing rods. The movement of the side panels 5 will drive the rectangular door panels 4 to move synchronously, thereby adjusting the distance between the two rectangular door panels 4. During the test, it is tightly closed to form a closed space to prevent fragments from flying. After the test is completed, it is opened to facilitate observation and replacement of the test specimen.

[0026] Each rectangular sleeve 21 has a fixed vertical rod 22 inserted inside. The bottom end of the fixed vertical rod 22 is fixedly connected to the protective shell 1. The rectangular sleeve 21 and the fixed vertical rod 22 are slidably connected. A U-shaped block 29 is fixedly connected to one side of the rectangular sleeve 21. A U-shaped block 18 is fixedly connected to the upper surface of the side plate 5. The two ends of the diagonal rod 20 are respectively inserted into the interior of the U-shaped block 29 and the U-shaped block 18. The diagonal rod 20 is rotatably connected to the U-shaped block 18 and the U-shaped block 29 through a shaft pin. The sliding of the rectangular sleeve 21 on the fixed vertical rod 22, combined with the rotatable connection of the diagonal rod 20 to the U-shaped block 18 and the U-shaped block 29, can convert the weight of the rectangular sleeve 21 into a force that drives the side plate 5 to move, so that the rectangular door plate 4 can be automatically opened after the detection is completed, improving the convenience of operation.

[0027] Two side connecting rods 10 are respectively inserted into two side slots 12 opened on both sides of the protective shell 1. The side connecting rods 10 and the protective shell 1 are slidably connected. The side slots 12 provide guidance and limit for the movement of the side connecting rods 10, ensuring that the side connecting rods 10 can stably transmit driving force and drive the optical axis 11 to slide precisely in the horizontal and vertical slots 13 and the bending slots 14, ensuring the coordination of the movement of each component.

[0028] A rectangular rod 23 is inserted into a rectangular groove 17 inside the side panel 5. One end of the rectangular rod 23 is fixedly connected to the protective shell 1. The side panel 5 and the rectangular rod 23 are slidably connected. The cooperation between the rectangular rod 23 and the rectangular groove 17 guides the movement of the side panel 5, prevents the side panel 5 from shifting during movement, and ensures that the rectangular door panel 4 can accurately open and close.

[0029] A pressure sensor 8 is installed below the connecting plate 6. A spring 7 is fixedly connected between the connecting plate 6 and the pressure sensor 8. A placement platform 3 is installed inside the protective shell 1. The placement platform 3 is located below the pressure sensor 8. The placement platform 3 provides a stable placement position for the mortar test block. The spring 7 can play a buffering role during the pressure application process, reducing the impact of instantaneous impact on the pressure sensor 8, so that the pressure sensor 8 can more accurately monitor the pressure applied to the test block and ensure the accuracy of the test data.

[0030] Two longitudinal grooves on the surface of the connecting plate 6 are respectively inserted with longitudinal sliding rods 9. The bottom ends of the two longitudinal sliding rods 9 are fixedly connected to the pressure sensor 8. The longitudinal sliding rods 9 and the connecting plate 6 are slidably connected. The sliding cooperation between the longitudinal sliding rods 9 and the connecting plate 6 restricts the movement direction of the pressure sensor 8, ensuring that the pressure sensor 8 remains stable during up and down movement and avoiding the impact of shaking on the accuracy of pressure detection.

[0031] The operating principle of the mortar compressive strength testing device in this embodiment is as follows: When the device is in use, the mortar test block to be tested is placed on the placement platform 3, and the electric push rod 2 is connected to an external power source. The electric push rod 2 is started by an external controller. The operation of the electric push rod 2 causes its piston rod to move the connecting plate 6 downward. The movement of the connecting plate 6 causes the spring 7 and the pressure sensor 8 to move synchronously towards the placement platform 3. When the pressure sensor 8 comes into contact with the mortar test block, as the piston rod of the electric push rod 2 continues to extend, it applies pressure to the mortar test block, thereby compressing the spring 7. The pressure sensor 8 monitors the pressure applied to the mortar test block in real time. The pressure applied to the test block can be observed through the external display screen connected to the pressure sensor 8. After the required pressure is applied to the mortar test block, the condition of the mortar test block can be observed, thereby determining whether the mortar test block meets the requirements. During the downward movement of the connecting plate 6 driven by the piston rod of the electric push rod 2, the movement of the connecting plate 6 drives the optical shaft 11 to slide inside the bending groove 14 via the side connecting rod 10. When the optical shaft 11 slides in the vertical groove of the bending groove 14, the position of the side plate 5 does not change, thus preventing the rectangular door panel 4 from moving. At this time, the pressure sensor 8 moves towards the mortar test block, and the position of the mortar test block can be observed through the gap between the two rectangular door panels 4 to see if it meets the requirements. When the optical shaft 11 slides from the vertical groove of the bending groove 14 to the inclined groove, the optical shaft 11 slides inside the inclined groove of the bending groove 14. Under the action of the inclined groove, the side plate 5 moves closer to the protection. The shell 1 moves in the direction of the side panel 5, which drives the rectangular door panel 4 to move synchronously, thereby reducing the distance between the two rectangular door panels 4 until the optical axis 11 slides from the bending groove 14 into the bottom of the horizontal and vertical grooves 13. At this time, the optical axis 11 causes the auxiliary plate 15 to rotate. After the optical axis 11 moves out of the surface of the auxiliary plate 15, the auxiliary plate 15 is reset under the action of gravity. At this time, the sides of the two rectangular door panels 4 are in contact, and when the optical axis 11 slides at the bottom of the horizontal and vertical grooves 13, a pressure test is performed on the mortar test block. The side panel 5 does not move, so that the two rectangular door panels 4 are always tightly closed, avoiding the situation where the mortar test block breaks during the test and causes damage to the staff. After the mortar test block is tested, the connecting plate 6 moves upward, causing the optical axis 11 to slide in the vertical groove of the horizontal and vertical grooves 13. With the obstruction of the auxiliary plate 15, the optical axis 11 moves vertically. At this time, the position of the side plate 5 does not change, thus making the two rectangular door panels 4 fit together. This avoids the problem of some mortar test blocks splashing during the upward movement of the pressure sensor 8, further ensuring the safety of the testing equipment during use. When the connecting plate 6 moves to its initial position, that is, the optical axis 11 moves into the horizontal groove of the horizontal and vertical grooves 13, under the action of the gravity of the rectangular sleeve 21, the side plate 5 can be moved away from the protective shell 1 by the side connecting rod 10 until the optical axis 11 moves into the inside of the bending groove 14, which is convenient for the testing equipment to be used again. When the side plate 5 moves, it drives the rectangular door panels 4 to move synchronously until the distance between the two rectangular door panels 4 is appropriate. At this time, the staff can observe the situation inside the protective shell 1.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A mortar compressive strength testing device, comprising a protective shell (1), characterized in that: An electric push rod (2) is installed in the mounting groove on the upper surface of the protective shell (1). The end of the piston rod of the electric push rod (2) is fixedly connected to a connecting plate (6). Side connecting rods (10) are fixedly connected to both sides of the connecting plate (6). An optical axis (11) is fixedly connected to the end of the side connecting rod (10) away from the connecting plate (6). Side plates (5) are provided on both sides of the protective shell (1). A horizontal and vertical groove (13) and a bending groove (14) are provided on one side of the side plate (5). The optical axis (11) is inserted into the horizontal and vertical groove (13). Two rectangular sleeves (21) are provided on the top of the protective shell (1). A diagonal rod (20) is provided on one side of each rectangular sleeve (21). An auxiliary plate (15) is provided inside the side plate (5).

2. The mortar compressive strength detection device according to claim 1, characterized in that: The auxiliary plate (15) is located in the embedded groove (16) inside the side plate (5). A rotating shaft (24) is inserted inside the auxiliary plate (15). The rotating shaft (24) is inserted into a round hole on the surface of the side plate (5). The auxiliary plate (15) is rotatably connected to the side plate (5) through the rotating shaft (24). The rotating shaft (24) is close to the top of the auxiliary plate (15).

3. The mortar compressive strength detection device according to claim 1, characterized in that: The protective shell (1) has two rectangular door panels (4) arranged symmetrically on its surface. The rectangular door panels (4) are fixedly connected by a fixing rod and a side plate (5).

4. The mortar compressive strength detection device according to claim 1, characterized in that: Each of the rectangular sleeves (21) is fitted with a fixed vertical rod (22). The bottom end of the fixed vertical rod (22) is fixedly connected to the protective shell (1). The rectangular sleeve (21) and the fixed vertical rod (22) are slidably connected. A U-shaped block two (19) is fixedly connected to one side of the rectangular sleeve (21). A U-shaped block one (18) is fixedly connected to the upper surface of the side plate (5). The two ends of the inclined rod (20) are respectively inserted into the interior of the U-shaped block two (19) and the U-shaped block one (18). The inclined rod (20) is rotatably connected to the U-shaped block one (18) and the U-shaped block two (19) respectively through a shaft pin.

5. The mortar compressive strength detection device according to claim 1, characterized in that: The two side connecting rods (10) are respectively inserted into the two side slots (12) opened on both sides of the protective shell (1), and the side connecting rods (10) and the protective shell (1) are slidably connected.

6. The mortar compressive strength detection device according to claim 1, characterized in that: A rectangular rod (23) is inserted into a rectangular groove (17) inside the side plate (5). One end of the rectangular rod (23) is fixedly connected to the protective shell (1), and the side plate (5) and the rectangular rod (23) are slidably connected.

7. The mortar compressive strength detection device according to claim 1, characterized in that: A pressure sensor (8) is provided below the connecting plate (6), and a spring (7) is fixedly connected between the connecting plate (6) and the pressure sensor (8). A placement platform (3) is installed inside the protective shell (1), and the placement platform (3) is located below the pressure sensor (8).

8. The mortar compressive strength detection device according to claim 1, characterized in that: The connecting plate (6) has two longitudinal grooves on its surface, each containing a longitudinal sliding rod (9). The bottom ends of the two longitudinal sliding rods (9) are fixedly connected to the pressure sensor (8), and the longitudinal sliding rods (9) and the connecting plate (6) are slidably connected.

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