Concrete fracture resistance detection device
By introducing transparent protective covers and limit structures into the concrete flexural performance detection device, the problem of lack of protection and adaptability of the detection device is solved, and a significant improvement in safety and adaptability is achieved.
Patent Information
- Application Number
- CN202420622004.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The existing concrete flexural performance testing devices lack protective devices, which makes the inspectors vulnerable to injuries and cannot adapt to different models and specifications of concrete test blocks for inspection, which is highly restrictive.
A detection device including a workbench, a fixing frame, a first cylinder, a push block, a transparent protective cover and a limit structure is designed to push the push block and a transparent protective cover to move through the first cylinder to avoid residue splashing, the second cylinder and a limiting cylinder The bit structure is used to adapt to test blocks of different sizes.
It improves the safety and adaptability of inspection, avoids concrete residue splashing and injuring people, and can adapt to different models and specifications of concrete test blocks for inspection.
Smart Images
Figure CN222232172U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a concrete anti-bending performance detection device, belonging to the technical field of concrete detection equipment. Background Art
[0002] Concrete flexural performance is one of the most important properties of concrete. Concrete flexural performance testing is usually carried out using concrete flexural performance testing equipment.
[0003] The Chinese patent with document number CN219319999U discloses a device for testing the flexural resistance of concrete, which includes a storage box, a U-shaped guide plate is fixedly provided on one side of the top of the storage box, guide grooves are provided on both inner walls of the U-shaped guide plate, and a U-shaped guide plate and a guide groove are provided, a concrete test block can be inserted into the guide groove inside the U-shaped guide plate, and the concrete test blocks can be connected and inserted and placed, so that multiple concrete test blocks can be moved to the bottom of the push plate in sequence, and then the push plate is moved by extending the cylinder, and the push plate can stamp and bend the concrete test block, so that the flexural resistance of the concrete test block can be continuously tested, etc.
[0004] The above-mentioned concrete flexural performance testing device is not equipped with a protective device. When the concrete test block is subjected to the flexural resistance test, the splashing debris can easily cause injuries to the test personnel, and the splashing broken debris is not easy to clean up. At the same time, it is impossible to make real-time adjustments according to the actual needs of different models and specifications of concrete sizes, which makes the concrete bending detection more restrictive.
[0005] In order to solve the above problems, the present application proposes a new concrete flexural performance testing device. Utility Model Content
[0006] In view of the above-mentioned defects existing in the prior art, the utility model provides a concrete flexural performance testing device which can avoid splashing of debris and injuring people during concrete testing and can adapt to testing of concrete test blocks of different sizes.
[0007] The utility model is realized by the following technical scheme: a concrete bending resistance detection device, comprising a workbench and a fixed frame fixedly connected to the workbench, a first cylinder fixedly connected to the fixed frame, a push block connected to the lower end of the first cylinder, characterized in that: a fixed seat with a U-shaped structure is fixed on one side of the upper part of the workbench, the U-shaped opening end of the fixed seat faces the push block, a positioning assembly is arranged on the fixed seat, the positioning assembly comprises a pressing plate arranged inside the fixed seat, four guide rods fixedly connected at the four corners of the pressing plate, and a second cylinder fixedly arranged on the upper part of the fixed seat, four guide holes are arranged on the upper wall of the fixed seat, the four guide rods are movably matched with the four guide holes up and down, the output end of the second cylinder is fixedly connected to the pressing plate, and movable limiting structures are arranged on both sides of the fixed seat; a protective assembly is arranged around the workbench, the protective assembly comprises a moving plate, a moving block, and a transparent protective cover, the moving plate is vertically fixedly connected between the workbench and the fixed frame, the moving block is movably connected to the moving plate up and down, and the transparent protective cover is connected to the moving block.
[0008] In the utility model, the push block can be pushed to move by the first cylinder to test the bending resistance of the concrete test block. By setting the moving block to be connected with the transparent protective cover, the moving block can drive the transparent protective cover to move when it moves. During the testing operation, the transparent protective cover can rise to protect the surrounding of the workbench, which can prevent the residue from splashing during the concrete test and causing injuries to the test personnel. After the test is completed, the transparent protective cover can be lowered to the bottom of the workbench; the second cylinder pushes the pressure plate to move, and the concrete test block is limited by the limiting structures on both sides, which can limit the concrete test blocks of different models and specifications, and improve the adaptability of the testing device.
[0009] Furthermore, the movable plate is rotatably connected to a vertically arranged first screw via a bearing, the movable block is threadedly connected to the first screw, a guide structure for guiding the movable block is provided on the movable plate, a motor is fixedly provided on the workbench, and an output end of the motor is connected to the first screw.
[0010] Furthermore, a pressure sensor is fixedly installed between the push block and the first cylinder.
[0011] Furthermore, the limiting structure includes a second screw rod rotatably connected to the side surface of the fixed seat, a clamp plate is threadedly connected to the second screw rod, a slider is fixedly connected to the bottom of the clamp plate, a sliding groove is provided on the fixed seat corresponding to the slider at the bottom of the clamp plate, and the slider at the bottom of the clamp plate slides in cooperation with the sliding groove on the fixed seat.
[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure, is easy to use, and has high safety. The second cylinder drives the pressing plate to move, and the limiting structures on both sides of the fixed seat limit the concrete test block, which can limit the concrete test blocks of different models and specifications, thereby improving the adaptability of the detection device; by setting a movable transparent protective cover, it can prevent the residual splashing during the concrete test from causing injuries to the detection personnel, thereby ensuring the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the structure of the utility model after removing the fixing frame;
[0015] Figure 3 This is a schematic diagram of the structure of the first screw and the motor in the utility model;
[0016] Figure 4 It is a structural schematic diagram of the fixing seat in the utility model;
[0017] In the figure: 1, workbench, 2, fixed frame, 3, protection assembly, 4, positioning assembly, 5, concrete test block, 6, fixed seat, 7, first cylinder, 8, pressure sensor, 9, push block;
[0018] 31. transparent protective cover, 32. moving plate, 33. first screw rod, 34. moving block, 35. motor;
[0019] 41. clamping plate, 42. guide rod, 43. second cylinder, 44. pressing plate, 45. second screw rod, 46. slider;
[0020] 61. Sliding groove. DETAILED DESCRIPTION
[0021] The present invention is further described below by way of non-limiting embodiments and in conjunction with the accompanying drawings:
[0022] As shown in the accompanying drawings, a concrete bending resistance testing device comprises a workbench 1, a fixed frame 2 fixedly connected to the workbench 1, a first cylinder 7 fixedly connected to the fixed frame 2, a push block 9 connected to the lower end of the first cylinder 7, and a pressure sensor 8 fixedly installed between the push block 9 and the first cylinder 7. A fixed seat 6 with a U-shaped structure is fixed on one side of the workbench 1, and the U-shaped opening end of the fixed seat 6 faces the push block 9. A positioning assembly 4 is arranged on the fixed seat 6, and the positioning assembly 4 comprises a pressing plate 44 arranged inside the fixed seat 6, four guide rods 42 fixedly connected at the four corners of the pressing plate 44, and a second cylinder 43 fixedly arranged on the upper part of the fixed seat 6, and the upper wall of the fixed seat 6 is provided with four guide holes, and the four guide rods 42 are movably inserted in the four guide holes up and down, and the cylinder rod of the second cylinder 43 passes through the upper wall of the fixed seat 6 and is fixedly connected to the pressing plate 44. A movable limiting structure is provided on both sides of the fixed seat 6. In this embodiment, the limiting structure includes a second screw 45 rotatably connected to the side of the fixed seat 6, a clamping plate 41 is threadedly connected to the second screw 45, a slider 46 is fixedly connected to the bottom of the clamping plate 41, and a sliding groove 61 is provided on the fixed seat 6 corresponding to the slider 46 at the bottom of the clamping plate 41. The slider 46 at the bottom of the clamping plate 41 is slidably matched with the sliding groove 61 on the fixed seat 6. The limiting structures on both sides are symmetrically arranged. By rotating the second screw 45, the clamping plate 41 can be driven to move. The pressing plate 44 is pushed downward by the second cylinder 43, and the concrete test block 5 placed on the fixed seat 6 can be positioned and limited by the clamping plates 41 on both sides. A protective assembly 3 is also provided around the workbench 1, and the protective assembly 3 includes a transparent protective cover 31, a movable plate 32, and a movable block 34. The movable plate 32 is vertically fixedly connected between the workbench 1 and the fixed frame 2, and the movable block 34 is movably connected to the movable plate 32 up and down, and the transparent protective cover 31 is connected to the movable block 34. When the movable block 34 moves up and down, it can drive the transparent protective cover 31 to move up and down. The movable structure of the movable block 34 can adopt various structures in the prior art that can drive it to move up and down. The structure adopted in this embodiment is: a vertically arranged first screw rod 33 is rotatably connected to the movable plate 32 through a bearing, and the movable block 34 is threadedly connected to the first screw rod 33. A guiding structure for guiding the movable block 34 is provided on the movable plate 32, and the guiding structure is a slide groove. When the first screw rod 33 rotates, the movable block 34 can move along the slide groove. The workbench 1 is fixedly provided with a motor 35, the output end of the motor 35 is connected to the first screw 33, and the first screw 33 can be driven to rotate by the motor 35. When the first screw 33 rotates, the transparent protective cover 31 can be driven to rise and fall through the moving block 34. The transparent protective cover 31 surrounds the workbench 1, and the transparent protective cover 31 is made of transparent material, which is convenient for observing the detection process.
[0023] The electrical control part of the utility model adopts the existing technology.
[0024] When the utility model is used, the concrete test block 5 is placed inside the fixed seat 6. Before the concrete test block 5 is subjected to anti-bending test, the first screw 33 is driven to rotate by starting the motor 35, and the first screw 33 drives the transparent protective cover 31 to move downward through the moving block 34, so as to facilitate the placement of the concrete test block 5 on the fixed seat 6. When the concrete test block 5 is tested, the transparent protective cover 31 is driven by the motor 35 to move to the upper side of the workbench 1 for protection, so as to avoid the splashing of debris on the concrete test block 5 during the test, and the transparent protective cover 31 is made of transparent material, so as to facilitate observation during the test. When the concrete test block 5 is subjected to anti-bending test, the push block 9 is pushed downward by starting the first cylinder 7, and force is applied to the concrete test block 5. The pressure of the first cylinder 7 on the push block 9 can be recorded by the pressure sensor 8, and the anti-bending performance of the concrete test block 5 can be judged by recording the data size by the pressure sensor 8. During the test, the concrete test block 5 is fixed and limited by the clamping plate 44 and the clamping plates 41 on both sides of the fixed seat 6, so as to increase the stability of the concrete test block 5. By adjusting the positions of the clamping plates 41 on both sides of the fixing seat 6, concrete test blocks 5 of different sizes can be fixed, thereby improving the adaptability of the detection device.
[0025] The other parts of this embodiment are all prior art and will not be described in detail here.
Claims
1. A concrete flexural performance testing device, comprising a workbench and a fixed frame fixedly connected to the workbench, a first cylinder fixedly connected to the fixed frame, a push block connected to the lower end of the first cylinder, characterized in that: A fixed seat with a U-shaped structure is fixed to one side of the upper part of the workbench, and the U-shaped open end of the fixed seat faces the push block. A positioning assembly is arranged on the fixed seat, and the positioning assembly includes a pressure plate arranged inside the fixed seat, four guide rods fixedly connected at the four corners of the pressure plate, and a second cylinder fixedly arranged on the upper part of the fixed seat. Four guide holes are arranged on the upper wall of the fixed seat, and the four guide rods are movably matched with the four guide holes up and down. The output end of the second cylinder is fixedly connected to the pressure plate, and movable limiting structures are arranged on both sides of the fixed seat; a protective assembly is arranged around the workbench, and the protective assembly includes a movable plate, a movable block, and a transparent protective cover. The movable plate is vertically fixedly connected between the workbench and the fixed frame, the movable block is movably connected to the movable plate up and down, and the transparent protective cover is connected to the movable block.
2. The concrete flexural performance testing device according to claim 1, characterized in that: The movable plate is rotatably connected with a vertically arranged first screw rod through a bearing, the movable block is threadedly connected to the first screw rod, a guide structure for guiding the movable block is provided on the movable plate, a motor is fixedly provided on the workbench, and an output end of the motor is connected to the first screw rod.
3. The concrete flexural performance testing device according to claim 1 is characterized in that: A pressure sensor is fixedly installed between the push block and the first cylinder.
4. The concrete flexural performance testing device according to claim 1, 2 or 3, characterized in that: The limiting structure includes a second screw rod rotatably connected to the side surface of the fixing seat, a clamping plate is threadedly connected to the second screw rod, a sliding block is fixedly connected to the bottom of the clamping plate, a sliding groove is provided on the fixing seat corresponding to the sliding block at the bottom of the clamping plate, and the sliding block at the bottom of the clamping plate is slidably matched with the sliding groove on the fixing seat.