Concrete strength detection equipment

Abstract

The utility model discloses concrete strength detection equipment. The utility model comprises: a housing; a positioning frame; a plurality of placing grooves are formed in the rotary table; the jacking component is arranged on the positioning frame and is connected with the rebound apparatus; the air blowing part is composed of an air bag and an air conveying hose which are arranged on the positioning frame; the air bag is arranged below the extrusion part; one end of the gas hose is connected with the rebound apparatus, and a gas outlet of the gas hose corresponds to the detection surface of the test block; the extrusion part is vertically arranged on the positioning frame in a sliding manner and is connected with the rebound apparatus; according to the utility model, after a to-be-tested block is moved to the lower part of the rebound apparatus by the rotary table, the jacking component drives the rebound apparatus to move downwards and strike the test block to carry out a strength test on the test block, and the extruding component moves along with the rebound apparatus and extrudes the air bag in the descending process of the rebound apparatus; the air bag blows airflow to the surface of the test block through the air hose to clean impurities on the surface of the test block, and then the impact head of the rebound apparatus is in contact with the test block, so that the detection precision is improved.

Description

Technical Field

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

[0002] In construction, to ensure construction quality, it is usually necessary to adjust the material ratio of concrete according to the requirements to make concrete blocks for test. After the concrete blocks are air-dried, they need to be tested for strength to check whether their compressive and tensile strengths meet the design requirements, so as to prevent structural failure due to insufficient strength. This method is commonly used in technical fields such as building engineering and transportation engineering.

[0003] In the current process of testing concrete samples, if soft impurities such as gravel and ash on the surface of the sample are not cleaned properly, the impurities will cause the surface of the sample to be uneven, making it impossible for the impact head of the rebound hammer to fit completely perpendicularly to the concrete. At the same time, the impurities will absorb some of the impact energy, thus affecting the measurement accuracy. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a concrete strength testing device that cleans impurities from the sample surface to improve measurement accuracy.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a concrete strength testing device, comprising: a turntable, a positioning frame disposed on one side of the turntable, a pressing component, an extrusion component, an air blowing component, and a rebound hammer;

[0006] The turntable has multiple concrete block placement slots evenly distributed around its circumference.

[0007] The pressing component is mounted on the positioning frame and connected to the rebound hammer, and is used to drive the rebound hammer to press the concrete block.

[0008] The air blowing component consists of an airbag and an air delivery hose mounted on the positioning frame;

[0009] The airbag is located below the compression component and is used to supply air to the air delivery hose;

[0010] One end of the air supply hose is connected to the rebound tester, and its air outlet corresponds to the test surface of the test block, for directional airflow.

[0011] The compression component is vertically slidably mounted on the positioning frame and connected to the rebound device for pressing the airbag.

[0012] Furthermore, the pressing component includes a mounting platform disposed on the positioning frame and a first power unit disposed on the mounting platform;

[0013] The rebound spring is vertically slidably mounted inside the mounting platform;

[0014] The first power unit is connected to the rebound spring and is used to drive its vertical lifting and lowering movement.

[0015] Furthermore, the airbag is made of elastic material, and its air inlet is equipped with a one-way valve for guiding airflow into the airbag, and its air outlet is equipped with a pressure valve, which is used to control the opening and closing of the air delivery hose.

[0016] The extrusion component is composed of a connecting rod and a transmission frame;

[0017] The transmission frame is vertically slidably mounted on the positioning frame and located above the airbag;

[0018] The connecting rod is disposed between the transmission frame and the rebound device, and is used to drive the transmission frame to move vertically up and down.

[0019] Furthermore, the positioning frame consists of a positioning rod and an adjustment frame that is vertically slidably mounted thereon;

[0020] The mounting platform and the transmission frame are respectively movably mounted on the adjusting frame, and the airbag is mounted on the adjusting frame;

[0021] The positioning frame is also provided with an adjustment component, which consists of a first adjustment component and a second adjustment component;

[0022] The first adjustment component is disposed inside the positioning rod and connected to the adjustment frame, and is used to drive the adjustment frame to move vertically up and down.

[0023] The second adjustment component is mounted on the adjustment frame and connected to the top pressing component, and is used to drive the top pressing component to move closer to or further away from the axis of the turntable.

[0024] Furthermore, the first adjustment assembly consists of a second power unit, a lead screw rotatably disposed within the positioning rod, and a moving block;

[0025] The second power unit is mounted on the positioning rod and connected to the lead screw, and is used to drive the lead screw to rotate;

[0026] The movable block is vertically slidably disposed inside the positioning rod and threadedly connected to the lead screw, and the movable block is connected to the adjusting frame. The movable block is used to drive the adjusting frame to move vertically up and down.

[0027] Furthermore, the adjustment frame is provided with an adjustment groove, and the mounting platform is slidably disposed within the adjustment groove;

[0028] The second adjustment component includes a third power unit disposed on the adjustment frame, the moving end of which is connected to the mounting platform and is used to drive it to move along the opening direction of the adjustment slot.

[0029] The beneficial effects of this utility model are reflected in:

[0030] In this invention, after the turntable moves the test block to a position below the rebound hammer, the pressing component drives the rebound hammer to move downward and strike the test block to test its strength. During the descent of the rebound hammer, the squeezing component moves with the rebound hammer and squeezes the airbag. The airbag blows airflow onto the surface of the test block through the air delivery hose to clean the surface impurities. Then, the impact head of the rebound hammer contacts the test block, improving the detection accuracy. Attached Figure Description

[0031] Figure 1 This is a perspective view of the concrete strength testing equipment described in this utility model;

[0032] Figure 2 This is a cross-sectional view of the concrete strength testing equipment described in this utility model;

[0033] Figure 3 for Figure 2 A magnified view of point A in the middle.

[0034] In the picture:

[0035] 01. Rebound hammer; 1. Turntable; 11. Placement slot; 2. Positioning frame; 21. Positioning rod; 22. Adjusting frame; 221. Adjusting slot; 3. Top pressing component; 31. Mounting platform; 32. First power unit; 4. Extrusion component; 41. Transmission frame; 42. Pressure plate; 43. Connecting rod; 5. Air blowing component; 51. Airbag; 52. Air supply hose; 6. Adjusting component; 61. First adjusting assembly; 611. Lead screw; 612. Moving block; 613. Second power unit; 62. Second adjusting assembly; 621. Third power unit. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0037] Please see Figure 1-3This utility model discloses a concrete strength testing device, including: a turntable 1, a positioning frame 2 set on one side of the turntable 1, a pressing component 3, a squeezing component 4, an air blowing component 5, and a rebound hammer 01;

[0038] The turntable 1 has multiple placement slots 11 for concrete blocks evenly distributed around it;

[0039] The pressing component 3 is mounted on the positioning frame 2 and connected to the rebound hammer 01, and is used to drive the rebound hammer 01 to press the concrete block.

[0040] The air blowing component 5 consists of an airbag 51 and an air delivery hose 52 mounted on the positioning frame 2;

[0041] The airbag 51 is located below the compression component 4 and is used to supply air to the air delivery hose 52;

[0042] One end of the air supply hose 52 is connected to the rebound hammer 01, and its air outlet corresponds to the test surface of the test block, for directional airflow.

[0043] The compression component 4 is vertically slidably mounted on the positioning frame 2 and connected to the rebound device 01, and is used to press the airbag 51.

[0044] In practice, the staff places the concrete test blocks to be tested into the corresponding placement slots 11 in sequence. Then, the turntable 1 operates and drives each concrete test block to rotate until the corresponding concrete test block moves to the bottom of the rebound hammer 01. Then, the pressing component 3 drives the rebound hammer 01 to move downward. At this time, the squeezing component 4 moves with the rebound hammer 01 and squeezes the air bladder 51. The air bladder 51 is compressed and delivers airflow into the air delivery hose 52 and blows it onto the surface of the concrete test block, thereby blowing away the surface impurities. Then, the rebound hammer 01 strikes the test block and takes a reading. After the measurement is completed, the pressing component 3 drives the rebound hammer 01 to move upward so that it separates from the test block. The turntable 1 rotates and moves the next test block to the bottom of the rebound hammer 01 to prepare for the next test. Then, the staff removes the test block from the turntable 1.

[0045] In this invention, after the turntable 1 moves the test block to below the rebound hammer 01, the pressing component 3 drives the rebound hammer 01 to move downward and strike the test block to test its strength. During the descent of the rebound hammer 01, the squeezing component 4 moves with the rebound hammer 01 and squeezes the airbag 51. The airbag 51 blows airflow onto the surface of the test block through the air supply hose 52 to clean the surface impurities. Then, the impact head of the rebound hammer 01 contacts the test block, improving the detection accuracy.

[0046] In one embodiment, the pressing component 3 includes a mounting platform 31 disposed on the positioning frame 2 and located above the turntable 1, and the rebound device 01 is vertically slidably disposed within the mounting platform 31;

[0047] It also includes a first power unit 32 set on the mounting platform 31. The moving end of the first moving unit is connected to the rebound spring 01 and is used to drive the rebound spring 01 to move vertically up and down.

[0048] With this design, when a test block needs to be tested, the first moving unit drives the rebound hammer 01 to descend and make its impact head contact the sample block. Then, the first moving unit continues to drive the rebound hammer 01 to descend until the rebound hammer 01 retracts to the predetermined position. The staff reads the value on the rebound hammer 01. Then, the first moving unit drives the rebound hammer 01 to rise and separate it from the sample block, preparing to test the next sample block.

[0049] Preferably, the first power unit 32 may be a cylinder in the prior art.

[0050] In one embodiment, the airbag 51 is made of an elastic material, and its air inlet is provided with a one-way valve (not shown in the figure) for guiding airflow into the airbag, and its air outlet is provided with a pressure valve (not shown in the figure). When the pressure inside the airbag reaches a predetermined value, the pressure valve is opened and air is blown into the air delivery hose 52.

[0051] The compression component 4 includes a transmission frame 41 that is vertically slidably mounted on the positioning frame 2 and located above the airbag 51. The bottom of the transmission frame 41 is provided with a pressure plate 42 for pressing the airbag 51.

[0052] It also includes a connecting rod 43 disposed between the transmission frame 41 and the rebound device 01. When the rebound device 01 moves up and down, the connecting rod 43 drives the transmission frame 41 to move together with it.

[0053] With this design, when the rebound hammer 01 moves downward, the rebound hammer 01 drives the transmission frame 41 to move downward through the connecting rod 43. Before the rebound hammer 01 contacts the sample block, the pressure plate 42 first contacts the air bag 51 and squeezes it, thereby delivering airflow into the air delivery hose 52.

[0054] In one embodiment, the positioning frame 2 is composed of a positioning rod 21 vertically disposed on one side of the turntable 1 and a C-shaped adjustment frame 22 vertically slidably disposed on the positioning rod 21;

[0055] The mounting platform 31 is slidably mounted on the top of the adjusting frame 22, and the transmission frame 41 is vertically slidably mounted on the adjusting frame 22;

[0056] The airbag 51 is mounted on the adjustment frame 22 and located below the transmission frame 41;

[0057] The positioning frame 2 is also provided with an adjustment component 6, which includes a first adjustment assembly 61 disposed in the positioning rod 21 and connected to the adjustment frame 22, for driving the adjustment frame 22 to move vertically up and down.

[0058] It also includes a second adjustment component 62, which is located on the top of the adjustment frame 22 and connected to the top pressure component 3, for driving the mounting platform 31 to move closer to or further away from the axis of the turntable 1.

[0059] With this design, when the height of the rebound hammer 01 needs to be adjusted, the first adjustment component 61 drives the adjustment frame 22 to move vertically, thereby adjusting the distance between the rebound hammer 01 and the turntable 1 to accommodate samples of different heights.

[0060] When multiple locations of the sample block need to be tested, the second adjustment component 62 drives the mounting platform 31 to move closer to or further away from the axis of the turntable 1, thereby changing the relative position between the rebound hammer 01 and the sample block.

[0061] In one embodiment, the first adjustment component 61 includes a lead screw 611 rotatably disposed within the positioning rod 21, and a movable block 612 connected to the adjustment frame 22 is also vertically slidably disposed within the positioning rod 21. The movable block 612 is threadedly connected to the lead screw 611, and the lead screw 611 is used to drive the movable block 612 to move vertically up and down.

[0062] It also includes a second power unit 613, which is mounted on the positioning rod 21 and connected to the lead screw 611, for driving the lead screw 611 to rotate.

[0063] With this design, when the height of the rebound spring 01 needs to be adjusted, the second power unit 613 drives the lead screw 611 to rotate, and the moving block 612 drives the rebound spring 01 and the corresponding components to move together through the adjusting frame 22, thereby changing the relative distance between the rebound spring 01 and the turntable 1.

[0064] Preferably, the second power unit 613 can be a motor from the prior art.

[0065] In one embodiment, the adjustment frame 22 is provided with an adjustment groove 221, and the mounting platform 31 is slidably disposed in the adjustment groove 221;

[0066] The second adjustment assembly 62 includes a third power unit 621 mounted on the adjustment frame 22, the moving end of which is connected to the mounting platform 31 and is used to drive it to move along the opening direction of the adjustment groove 221.

[0067] With this design, when it is necessary to adjust the relative position between the rebound hammer 01 and the sample block, the third power unit 621 drives the rebound hammer 01 to move closer to or further away from the axis of the turntable 1 via the mounting platform 31, thereby changing the test point of the sample block.

[0068] Preferably, the third power unit 621 may be a cylinder in the prior art.

[0069] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0070] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0071] Additionally, "multiple" refers to two or more.

[0072] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concrete strength testing device, characterized in that, include: Turntable (1), positioning frame (2) set on one side of the turntable (1), pressing component (3), extrusion component (4), air blowing component (5) and rebound spring (01); The turntable (1) has multiple concrete block placement slots (11) evenly distributed around its circumference; The top-pressing component (3) is mounted on the positioning frame (2) and connected to the rebound hammer (01) to drive the rebound hammer (01) to press the concrete block; The air blowing component (5) consists of an air bladder (51) and an air delivery hose (52) mounted on the positioning frame (2); The airbag (51) is disposed below the compression member (4) and is used to supply air to the air delivery hose (52); One end of the air supply hose (52) is connected to the rebound hammer (01), and its air outlet corresponds to the test surface of the test block for directional airflow. The compression component (4) is vertically slidably mounted on the positioning frame (2) and connected to the rebound device (01) for pressing the airbag (51).

2. The concrete strength testing equipment according to claim 1, characterized in that; The top-pressing component (3) includes a mounting platform (31) disposed on the positioning frame (2) and a first power unit (32) disposed on the mounting platform (31); The rebound spring (01) is vertically slidably disposed within the mounting platform (31); The first power unit (32) is connected to the rebound device (01) and is used to drive it to move vertically up and down.

3. The concrete strength testing equipment according to claim 2, characterized in that: The airbag (51) is made of elastic material, and its air inlet is provided with a one-way valve for guiding airflow into the airbag, and its air outlet is provided with a pressure valve, which is used to control the opening and closing of the air delivery hose (52). The extrusion component (4) is composed of a connecting rod (43) and a transmission frame (41); The transmission frame (41) is vertically slidably mounted on the positioning frame (2) and located above the airbag (51); The connecting rod (43) is disposed between the transmission frame (41) and the rebound device (01) and is used to drive the transmission frame (41) to move vertically up and down.

4. The concrete strength testing equipment according to claim 3, characterized in that: The positioning frame (2) is composed of a positioning rod (21) and an adjustment frame (22) that is vertically slidably mounted thereon; The mounting platform (31) and the transmission frame (41) are respectively movably mounted on the adjusting frame (22), and the airbag (51) is mounted on the adjusting frame (22); The positioning frame (2) is also provided with an adjustment component (6), which is composed of a first adjustment component (61) and a second adjustment component (62); The first adjustment component (61) is disposed inside the positioning rod (21) and connected to the adjustment frame (22) for driving the adjustment frame (22) to move vertically up and down; The second adjustment component (62) is disposed on the adjustment frame (22) and connected to the top pressing component (3), and is used to drive the top pressing component (3) to move toward or away from the axis of the turntable (1).

5. The concrete strength testing equipment according to claim 4, characterized in that: The first adjustment component (61) consists of a second power unit (613), a lead screw (611) rotatably disposed in the positioning rod (21), and a moving block (612); The second power unit (613) is mounted on the positioning rod (21) and connected to the lead screw (611) for driving the lead screw (611) to rotate; The movable block (612) is vertically slidably disposed inside the positioning rod (21) and threadedly connected to the lead screw (611). The movable block (612) is connected to the adjusting frame (22). The movable block (612) is used to drive the adjusting frame (22) to move vertically up and down.

6. The concrete strength testing equipment according to claim 4, characterized in that: The adjustment frame (22) is provided with an adjustment groove (221), and the mounting platform (31) is slidably disposed in the adjustment groove (221); The second adjustment component (62) includes a third power unit (621) disposed on the adjustment frame (22), the moving end of which is connected to the mounting platform (31) for driving it to move along the opening direction of the adjustment groove (221).

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