Pressure detection equipment for concrete block

Abstract

The utility model provides concrete block pressure detection equipment which comprises a detection box, a detection part and a protective cover rotationally arranged in the detection box, a gear ring is installed on the protective cover, and a driving motor used for driving the gear ring to rotate is installed in the detection box; under the driving of the driving motor, the protective cover can rotate along the central axis of the protective cover, and the central axis extends in the vertical direction; the detection part comprises a sample table and a hydraulic cylinder, the sample table is installed in the detection box, the top end face of the sample table is located in the protective cover, the hydraulic cylinder is installed at the top of the detection box, and the lower end of a piston rod extends into the protective cover and is provided with a pressing plate through a pressure meter; a baffle is fixedly mounted in the detection box, an inlet / outlet is formed in the detection box, a sample inlet is formed in the protective cover, and when the protective cover rotates, the sample inlet can move between a first position and a second position, so that the sample inlet directly faces the inlet / outlet or the baffle. By means of the device, the situation that scraps produced when the sample is crushed injure detection personnel can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to a pressure detection device for a concrete block. Background Art

[0002] As one of the main materials for modern construction, concrete has an important compressive strength indicator. It is necessary to conduct sampling tests and compressive strength tests in the laboratory to ensure the quality of the building structure. When conducting the compressive strength test, pressure is applied to the test block until the concrete test block cracks. Then, based on the pressure measured by the pressure gauge when the test block cracks, the compressive strength of the concrete test block is calculated to determine whether it is qualified. Due to the brittle nature of concrete, when it breaks, it is usually accompanied by a lot of debris flying out. The flying debris may cause accidental injuries to the surrounding test personnel and have an adverse effect on the safe production around the testing equipment. Utility Model Content

[0003] In order to solve the problem that the debris generated when the concrete sample is crushed may cause accidental injury to the surrounding inspection personnel, the present application proposes a pressure inspection device for concrete blocks, which includes a detection box, a protective cover and a detection part. The protective cover is rotatably arranged in the detection box. When viewed in the vertical direction, the protective cover is annular, and a gear ring is fixedly installed on the outer peripheral surface of the protective cover. A driving motor is installed in the detection box, and a driving gear is installed on the output shaft of the driving motor. The driving gear is meshed with the gear ring. Under the drive of the driving motor, the protective cover can rotate along its central axis, and the central axis extends in the vertical direction.

[0004] The detection part includes a sample table and a hydraulic cylinder. The sample table is fixedly installed in the detection box, and the top surface of the sample table is located in the protective cover. The hydraulic cylinder is fixedly installed on the top of the detection box. The piston rod of the hydraulic cylinder extends downward in the vertical direction and extends into the protective cover. A pressure plate is installed at the lower end of the piston rod through a pressure gauge, and the pressure plate is located directly above the sample table.

[0005] A baffle is fixedly installed in the detection box, an inlet and an outlet are opened on one side of the detection box, and a switch door is installed on the inlet and the outlet, and an injection port is opened on the protective cover. When the protective cover rotates, the injection port can move between a first position and a second position. When the protective cover is located at the first position, the injection port is opposite to the inlet and the injection port is opposite to the baffle when the protective cover is located at the second position.

[0006] When the application is working, open the switch door, then start the drive motor to rotate the protective cover to the first position, the sample inlet is facing the inlet, and the sample is placed on the sample table through the inlet and the inlet, and then start the drive motor again to rotate the protective cover to the second position, then close the switch door, and then start the hydraulic cylinder to test the compressive strength of the sample. Due to the provision of the protective cover and baffle, the debris produced when the sample is broken is confined in the protective cover, which can effectively avoid harm to the surrounding testers.

[0007] Furthermore, in order to prevent the protective cover from deviating from its position when rotating, a slide groove is fixedly installed on the bottom plate of the detection box, and the protective cover is slidably installed in the slide groove.

[0008] Furthermore, in order to enable the protective cover to rotate flexibly, the protective cover is installed in the slide groove via the end thrust bearing.

[0009] Furthermore, in order to reduce the gap between the baffle and the protective cover, the baffle has an inner side surface facing the protective cover, the inner side surface is arc-shaped, and the center of the inner side surface is located on the central axis of the protective cover.

[0010] Furthermore, in order to prevent debris generated by the sample from flying outward from the gap between the baffle and the protective cover, the distance between the inner side surface of the baffle and the outer peripheral surface of the protective cover is 1-5 mm.

[0011] Furthermore, in order to prevent the debris generated by the sample from damaging the pressure gauge, a steel sheath is placed on the pressure gauge, which is a wireless pressure sensor. When using a wired pressure gauge, the debris generated by the sample may also damage the wire of the pressure gauge. Using a wireless pressure sensor can effectively avoid this problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0013] Figure 2 is a front schematic diagram of the illustrated embodiment. DETAILED DESCRIPTION

[0014] See also Figure 1 and Figure 2 A pressure detection device for concrete blocks includes a detection box 10, a protective cover 20 and a detection unit 30. The detection box 10 specifically includes a bottom plate 11, a box body 12 fixed on the upper side of the bottom plate 11 and a top plate 13 fixed on the top of the box body. An inlet and outlet 17 is opened on one side of the box body 12, and a switch door 18 is installed on the inlet and outlet. The switch door 18 rotatably installs a hinge 181 on the box body 12, and a lock 19 is installed on the switch door.

[0015] The protective cover 20 specifically includes a circular cover body 21, which extends in the vertical direction. A cover top 22 is installed on the top plate of the cover body. When viewed in the vertical direction, the protective cover is annular and has a central axis 201 extending in the vertical direction. The protective cover 20 is rotatably arranged in the detection box. A gear ring 25 is fixedly installed on the outer peripheral surface of the protective cover. A drive motor 29 is installed in the detection box. The drive motor is located outside the protective cover 20. The drive motor is fixedly installed on the box body 12 via a motor seat 291. A drive gear 28 is installed on the output shaft of the drive motor, and the drive gear is meshed with the gear ring. Driven by the drive motor, the protective cover 20 can rotate along its central axis 201.

[0016] In this embodiment, in order to make the protective cover rotate smoothly, a slide groove 16 is fixedly installed on the bottom plate of the detection box, and an end thrust bearing 27 is installed in the slide groove. The protective cover is installed in the slide groove through the end thrust bearing 27.

[0017] The detection unit 30 includes a sample table 37 and a hydraulic cylinder 31. The sample table is fixedly installed in the detection box, and the top surface of the sample table is located in the protective cover. The cylinder barrel 32 of the hydraulic cylinder 31 is fixedly installed on the upper side of the top plate 13. The piston rod 33 of the hydraulic cylinder extends downward in the vertical direction and extends into the protective cover 20. A pressure plate 35 is installed at the lower end of the piston rod through a pressure gauge 34. The pressure plate 35 is located directly above the sample table 37. In this embodiment, the pressure gauge is a wireless pressure sensor, specifically a GDP60W wireless pressure sensor of Shandong Mining Safety Electromechanical Co., Ltd. In order to prevent the debris generated when the sample is crushed from damaging the press, a steel sheath 36 is provided on the pressure gauge.

[0018] To prevent sample debris from falling into the gap between the protective cover and the sample table 37, a retaining ring 23 is welded on the inner side of the cover body 21, and a sealing ring 26 is installed between the retaining ring and the sample table. The upper surface of the retaining ring is at the same height as the top surface of the sample table.

[0019] A baffle 14 is provided in the detection box, and the baffle 14 is fixedly mounted on the box body 12 via a connecting rod 15. An injection port 24 is provided on the protective cover. When the protective cover rotates, the injection port can move between a first position and a second position. When the protective cover is located at the first position, the injection port is opposite to the inlet and outlet. When the protective cover is located at the second position, the injection port is opposite to the baffle.

[0020] Specifically in this embodiment, the baffle has an inner side surface 141 facing the protective cover, the inner side surface 141 is arc-shaped, and the center of the inner side surface is located on the central axis of the protective cover. The distance between the inner side surface of the baffle and the outer peripheral surface of the protective cover is 3 mm. In other embodiments, the distance between the inner side surface of the baffle and the outer peripheral surface of the protective cover is preferably controlled within 1-5 mm. The baffle is used to prevent the debris generated when the sample is broken from being separated from the protective cover.

[0021] When this embodiment is working, the switch door 18 is opened, and then the drive motor 29 is started to rotate the protective cover to the first position, the sample inlet is directly opposite to the inlet, and the sample is placed on the sample table through the inlet and the inlet, and the drive motor is started again to rotate the protective cover to the second position, and then the switch door is closed, the lock 19 is buckled on the box body, and then the hydraulic cylinder is started to test the compressive strength of the sample. Due to the provision of the protective cover and the baffle, the debris produced when the sample is broken is confined in the protective cover, which can effectively avoid harm to the surrounding testers.

Claims

1. A pressure detection device for concrete blocks, characterized in that: The invention comprises a detection box, a protective cover and a detection part. The protective cover is rotatably arranged in the detection box. When viewed in the vertical direction, the protective cover is annular. A gear ring is fixedly installed on the outer peripheral surface of the protective cover. A driving motor is installed in the detection box. A driving gear is installed on the output shaft of the driving motor. The driving gear is meshed with the gear ring. Under the drive of the driving motor, the protective cover can rotate along its central axis, and the central axis extends in the vertical direction. The detection part includes a sample table and a hydraulic cylinder. The sample table is fixedly installed in the detection box, and the top surface of the sample table is located in the protective cover. The hydraulic cylinder is fixedly installed on the top of the detection box. The piston rod of the hydraulic cylinder extends downward in the vertical direction and extends into the protective cover. A pressure plate is installed at the lower end of the piston rod through a pressure gauge, and the pressure plate is located directly above the sample table. A baffle is fixedly installed in the detection box, an inlet and an outlet are opened on one side of the detection box, and a switch door is installed on the inlet and the outlet, and an injection port is opened on the protective cover. When the protective cover rotates, the injection port can move between a first position and a second position. When the protective cover is located at the first position, the injection port is opposite to the inlet and the injection port is opposite to the baffle when the protective cover is located at the second position.

2. The pressure detection device according to claim 1, characterized in that: A slide groove is fixedly installed on the bottom plate of the detection box, and the protective cover is slidably installed in the slide groove.

3. The pressure detection device according to claim 1, characterized in that: The protective cover is installed in the slide groove through the end thrust bearing.

4. The pressure detection device according to claim 1, characterized in that: The baffle has an inner side surface facing the protective cover, the inner side surface is in an arc shape, and the center of the inner side surface is located on the central axis of the protective cover.

5. The pressure detection device according to claim 1, characterized in that: The distance between the inner side surface of the baffle and the outer peripheral surface of the protective cover is 1-5mm.

6. The pressure detection device according to claim 1, characterized in that: A steel sheath is sleeved on the pressure gauge, and the pressure gauge is a wireless pressure sensor.

Images