Strength tester

Abstract

The utility model provides a strength tester, which belongs to the technical field of concrete strength testing and comprises a worktable, a support plate fixed on the upper surface of the worktable, a top plate arranged on the upper surface of the support plate, a tester body arranged at the center of the lower surface of the top plate, hydraulic rods arranged on two sides of the upper surface of the top plate, and connecting plates arranged at output ends of the hydraulic rods. A U-shaped protection frame is arranged at the bottom of the connecting plate, and a clamping mechanism used for clamping concrete is arranged below the U-shaped protection frame, broken blocks generated when the concrete is broken can be blocked, damage to personnel and equipment is avoided, the safety of the equipment is improved, the concrete can be clamped, and the safety of the equipment is improved. The stability and practicability of equipment in the working process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete strength testing, in particular to a strength tester. Background Art

[0002] During the construction of elevator shafts, it is necessary to conduct a burst resistance test on concrete. 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 as a cementitious material, sand and stone as aggregates; cement concrete obtained by mixing with water in a certain proportion, also known as ordinary concrete, is widely used in civil engineering. After solidification, the texture of concrete itself becomes harder, so the solidified concrete can be used as a base plate in the elevator shaft. In order to ensure whether the strength of the concrete itself is qualified, the strength of the concrete needs to be tested. The existing measuring instrument uses an impact method to test the impact resistance of the concrete itself, and the solidified concrete is easy to break into pieces when broken under high pressure, and the fragments may cause damage to the testers and equipment. Utility Model Content

[0003] In view of this, the utility model provides a strength tester, which can block the fragments of concrete that collapse when it is broken, avoid harm to personnel and equipment, improve the safety of the equipment, and can clamp concrete to improve the stability and practicality of the equipment's working process.

[0004] In order to solve the above technical problems, the utility model provides a strength tester, including a workbench, a support plate is fixed on the upper surface of the workbench, a top plate is arranged on the upper surface of the support plate, a tester body is arranged at the center of the lower surface of the top plate, hydraulic rods are arranged on both sides of the upper surface of the top plate, connecting plates are arranged at the output ends of the hydraulic rods, a U-shaped protection frame is arranged at the bottom of the connecting plate, and a clamping mechanism for clamping concrete is arranged below the U-shaped protection frame. The staff places the concrete block to be tested on the upper surface of the workbench and then starts the hydraulic rod. The output end of the hydraulic rod drives the connecting plate and the U-shaped protection frame to move downward, so that the U-shaped protection frame wraps the concrete block. At this time, the concrete block is located in the center of the U-shaped protection frame. The staff starts the tester body to perform a burst resistance test on the concrete block. The broken and fractured fragments bounce on the inner wall of the U-shaped protection frame, thereby preventing the fragments from causing harm to personnel and equipment, improving the safety of the equipment, and at the same time, when the U-shaped protection frame descends, the clamping assembly automatically clamps the concrete block, thereby improving the stability of the equipment working process.

[0005] The clamping mechanism includes driving blocks arranged on both sides below the U-shaped protection frame, driving grooves are provided on both sides inside the workbench, and a clamping groove is provided above the inner wall of the driving groove and at a position corresponding to the position directly below the driving block. A spring is provided on one side of the inner wall of the driving groove, a movable block is fixed at one end of the spring, and the upper surface of the movable block is an inclined surface, a connecting block is provided on one side of the upper surface of the movable block, sliding grooves are provided on both sides of the upper surface of the workbench, and the connecting block is slidably arranged in the sliding grooves, and a clamping plate is provided on the upper end of the connecting block. When the U-shaped protection frame descends, the driving blocks on both sides enter the clamping grooves at the same time and continue to descend, so that the clamping plates are close to each other to clamp and fix the concrete, and the mutual cooperation between the U-shaped protection frame and the clamping plate enables the staff to clamp the concrete block while performing protection work, thereby greatly improving the practicality of the equipment and improving the stability of the equipment working process.

[0006] A roller is arranged at the bottom of the driving block. When the driving block descends, the roller at the bottom of the driving block contacts the movable block, thereby reducing the friction between the driving block and the movable block, making the driving block descend more smoothly.

[0007] The surface of the clamping plate is provided with a rubber pad, which can prevent the clamping plate from damaging the concrete block when clamping the concrete block.

[0008] An observation window is provided in the center of the surface of the U-shaped protection frame, which allows workers to observe the crushing situation conveniently during inspection.

[0009] The observation window is equipped with tempered glass, which can prevent broken glass from being shattered and increase the service life of the device.

[0010] A base is arranged at the bottom of the workbench, and universal wheels are arranged at the bottom of the base, so that the device can be easily moved.

[0011] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0012] 1. When the utility model is used, the staff places the concrete block to be tested on the upper surface of the workbench, and then starts the hydraulic rod. The output end of the hydraulic rod drives the connecting plate and the U-shaped protection frame to move downward, so that the U-shaped protection frame wraps the concrete block. At this time, the concrete block is located in the center of the U-shaped protection frame. The staff starts the measuring instrument body to perform a burst resistance test on the concrete block. The broken and fractured fragments bounce on the inner wall of the U-shaped protection frame, thereby preventing the fragments from causing harm to personnel and equipment and improving the safety of the equipment. At the same time, when the U-shaped protection frame descends, the clamping assembly automatically clamps the concrete block, thereby improving the stability of the equipment working process.

[0013] 2. When the utility model is used, when the U-shaped protection frame descends, the driving blocks on both sides enter the slots at the same time and continue to descend, so that the clamps are close to each other to clamp and fix the concrete. The cooperation between the U-shaped protection frame and the clamps allows the staff to clamp the concrete blocks while performing the protection work, which greatly improves the practicability of the equipment and improves the stability of the equipment working process.

[0014] 3. When the utility model is used, a roller is provided at the bottom of the driving block. When the driving block descends, the roller at the bottom of the driving block contacts, thereby reducing the friction between the driving block and the movable block, making the driving block descend more smoothly.

[0015] 4. When the utility model is used, an observation window is provided at the center of the surface of the U-shaped protection frame, and the observation window can facilitate the staff to observe the crushing situation during the inspection work. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a front sectional view of the interior of the workbench of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the workbench of the utility model.

[0019] Explanation of the reference numerals: 100, workbench; 101, driving block; 102, driving groove; 103, spring; 104, movable block; 105, slide groove; 106, connecting block; 107, clamping plate; 108, slot; 200, support plate; 300, top plate; 301, hydraulic rod; 302, connecting plate; 303, U-shaped protective frame; 304, observation window; 400, measuring instrument body; 500, base. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] According to one embodiment of the utility model, Figure 1 , Figure 2 and Figure 3As shown: This embodiment provides a strength tester, including a workbench 100, a support plate 200 is fixed on the upper surface of the workbench 100, a top plate 300 is arranged on the upper surface of the support plate 200, a tester body 400 is arranged at the center of the lower surface of the top plate 300, hydraulic rods 301 are arranged on both sides of the upper surface of the top plate 300, a connecting plate 302 is arranged at the output end of the hydraulic rod 301, a U-shaped protective frame 303 is arranged at the bottom of the connecting plate 302, and a clamping mechanism for clamping concrete is arranged below the U-shaped protective frame 303. The staff places the concrete block to be tested on the upper surface of the workbench 100, and then starts the hydraulic rod 301, and the output end of the hydraulic rod 301 drives the connecting plate 302 and the U-shaped protection frame 303 move downward, so that the U-shaped protection frame 303 wraps the concrete block. At this time, the concrete block is located in the center of the U-shaped protection frame 303. The staff starts the measuring instrument body 400 to perform a burst test on the concrete block. The broken and fractured fragments bounce on the inner wall of the U-shaped protection frame 303, thereby preventing the fragments from causing harm to personnel and equipment and improving the safety of the equipment. At the same time, when the U-shaped protection frame 303 descends, the clamping assembly automatically clamps the concrete block to improve the stability of the equipment working process; the clamping mechanism includes a driving block 101 arranged on both sides below the U-shaped protection frame 303, and a driving groove 102 is opened on both sides of the workbench 100. The inner wall of the driving groove 102 is above and corresponds to the driving block A card slot 108 is provided at the position directly below 101, a spring 103 is provided on one side of the inner wall of the driving slot 102, a movable block 104 is fixed on one end of the spring 103, and the upper surface of the movable block 104 is an inclined surface, a connecting block 106 is provided on one side of the upper surface of the movable block 104, and a slide slot 105 is provided on both sides of the upper surface of the workbench 100, and the connecting block 106 is slidably provided in the slide slot 105, and a clamping plate 107 is provided on the upper end of the connecting block 106. When the U-shaped protection frame 303 descends, the driving blocks 101 on both sides enter the card slot 108 at the same time and continue to descend. Since the upper surface of the movable block 104 is an inclined surface, the bottom of the driving block 101 contacts the inclined surface of the movable block 104 and makes the driving block 1 01 continues to descend, and the two movable blocks 104 approach each other, so that the two connecting blocks 106 slide in the slide groove 105 and approach each other, and then the clamping plates 107 approach each other to clamp and fix the concrete, and the movable blocks 104 compress the spring 103 when they approach each other. After the work is completed, the U-shaped protection frame 303 rises, so that the driving block 101 is separated from the card slot 108, and the rebound force of the spring 103 resets the movable block 104, and then resets the clamping plate 107, which is convenient for the next clamping. The mutual cooperation between the U-shaped protection frame 303 and the clamping plate 107 enables the staff to clamp the concrete block while performing the protection work, which greatly improves the practicality of the equipment and improves the stability of the equipment working process;

[0022] According to another embodiment of the present invention, Figure 1 and Figure 2As shown, a roller is provided at the bottom of the driving block 101. When the driving block 101 descends, the roller at the bottom of the driving block 101 contacts, thereby reducing the friction between the driving block 101 and the movable block 104, making the driving block 101 descend more smoothly; a rubber pad is provided on the surface of the clamping plate 107, and the rubber pad can prevent the clamping plate 107 from damaging the concrete block when clamping the concrete block; an observation window 304 is provided at the center of the surface of the U-shaped protection frame 303, and the observation window 304 can facilitate the staff to observe the crushing situation during the inspection work; tempered glass is provided in the observation window 304, and the tempered glass can prevent the broken glass from being broken by the broken pieces, thereby improving the service life of the device; a base 500 is provided at the bottom of the workbench 100, and a universal wheel is provided at the bottom of the base 500, and the universal wheel facilitates the movement of the device.

[0023] The use of this utility model:

[0024] First of all, it should be made clear that the utility model can be used for the inspection of concrete used in the construction of elevator shafts. It should be made clear here that the measuring instrument body is a device for performing burst resistance inspection on concrete in the prior art. Since it is not an innovative point of the utility model, the model is not limited here, nor is its structure described in too much detail. Only the use method and installation position of the U-shaped protection frame and the clamping mechanism are elaborated in detail. When it is necessary to perform a burst resistance test on the concrete, the staff places the concrete block to be tested on the upper surface of the workbench 100, and then starts the hydraulic rod 301. The output end of the hydraulic rod 301 drives the connecting plate 302 and the U-shaped protection frame 303 to move downward, so that the U-shaped protection frame 303 wraps the concrete block. At this time, the concrete block is located in the center of the U-shaped protection frame 303. The staff starts the measuring instrument body 400 to perform a burst resistance test on the concrete block. The broken and fractured fragments bounce on the inner wall of the U-shaped protection frame 303, thereby avoiding the fragments from causing damage to personnel and equipment. The U-shaped protection frame 303 rises after the work is completed, so that the driving block 101 is disengaged from the card slot 108, and the rebound force of the spring 103 resets the movable block 104, and then resets the clamping plate 107, which is convenient for the next clamping. The cooperation between the U-shaped protection frame 303 and the clamping plate 107 enables the staff to clamp the concrete block while performing the protection work, thereby greatly improving the stability and safety of the equipment working process, and improving the practicability of the equipment.

[0025] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A strength tester, comprising a workbench (100), a support plate (200) being fixed on the upper surface of the workbench (100), a top plate (300) being arranged on the upper surface of the support plate (200), a tester body (400) being arranged at the center of the lower surface of the top plate (300), hydraulic rods (301) being arranged on both sides of the upper surface of the top plate (300), and a connecting plate (302) being arranged at the output end of the hydraulic rod (301), characterized in that: A U-shaped protection frame (303) is provided at the bottom of the connection plate (302), and a clamping mechanism for clamping concrete is provided below the U-shaped protection frame (303).

2. A strength tester as claimed in claim 1, characterized in that: The clamping mechanism comprises a driving block (101) arranged on both sides below the U-shaped protection frame (303); a driving groove (102) is provided on both sides inside the workbench (100); a clamping groove (108) is provided above the inner wall of the driving groove (102) and at a position corresponding to the position directly below the driving block (101); a spring (103) is provided on one side of the inner wall of the driving groove (102); a movable block (104) is fixed to one end of the spring (103); the upper surface of the movable block (104) is an inclined surface; a connecting block (106) is provided on one side of the upper surface of the movable block (104); sliding grooves (105) are provided on both sides of the upper surface of the workbench (100); the connecting block (106) is slidably provided in the sliding grooves (105); and a clamping plate (107) is provided on the upper end of the connecting block (106).

3. A strength tester as claimed in claim 2, characterized in that: A roller is arranged at the bottom of the driving block (101).

4. A strength tester as claimed in claim 2, characterized in that: The surface of the clamping plate (107) is provided with a rubber pad.

5. A strength tester as claimed in claim 1, characterized in that: An observation window (304) is provided at the center of the surface of the U-shaped protection frame (303).

6. A strength tester as claimed in claim 5, characterized in that: The observation window (304) is provided with tempered glass.

7. A strength tester as claimed in claim 1, characterized in that: A base (500) is provided at the bottom of the workbench (100), and a universal wheel is provided at the bottom of the base (500).

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