Precast concrete component strength testing device

Abstract

The utility model relates to the technical field of concrete prefabricated part compressive strength detection, in particular to a concrete prefabricated part strength testing device which comprises a support, a cantilever, a first driving assembly, a clamping assembly, a second driving assembly, a pushing assembly and a third driving assembly. The first driving assembly is used for driving the cantilever to slide up and down on the support, the clamping assemblies are movably arranged on the cantilever and used for clamping the two opposite side edges of the concrete prefabricated part, the second driving assembly is arranged on the cantilever and is in transmission connection with the clamping assemblies so as to drive the two oppositely-arranged clamping assemblies to get away from or get close to each other, and the pushing and pressing assembly is arranged on the cantilever and used for pushing and pressing the concrete prefabricated part. The pushing and pressing assembly is provided with a flat pressing part, and the third driving assembly is arranged on the pushing and pressing assembly and connected with the flat pressing part so as to push the flat pressing part to be close to or away from the wall face of the concrete prefabricated part. The testing device provided by the utility model can be used for detecting the compressive strength of various precast concrete components with different sizes, so that the adaptability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressive strength testing of prefabricated concrete components, in particular to a strength testing device for prefabricated concrete components. Background Art

[0002] The compressive strength of precast concrete components measures their ability to resist compressive loads without breaking. It directly impacts the load-bearing capacity and durability of precast components in practical applications. Compressive strength testing of precast components verifies their compliance with design requirements and relevant standards and specifications, thereby ensuring the stability and safety of buildings.

[0003] The existing method for testing the compressive strength of precast concrete components generally follows these steps: Step 1: Sampling and preparing test specimens; Step 2: Curing under standard curing conditions; Step 3: After the curing period, the specimens are subjected to compression testing using a pressure testing machine until they fail; Step 4: Recording the maximum load required during the test and calculating the compressive strength of the precast concrete component based on this.

[0004] However, existing testing devices are often only applicable to precast concrete components of a certain fixed size, resulting in a low equipment reuse rate. When testing precast concrete components of different sizes, different specially designed supports and fixing devices need to be replaced to stabilize the precast concrete components, which increases the testing cost. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a precast concrete component strength testing device, which is capable of performing compressive strength testing on precast concrete components of various sizes, thereby improving the applicability of the device.

[0006] According to an embodiment of the present invention, a strength testing device for precast concrete components includes a support, a cantilever, a first drive assembly, at least one pair of relatively arranged clamping assemblies, a second drive assembly, a pushing assembly, and a third drive assembly. The cantilever is slidably arranged on the support, the first drive assembly is used to drive the cantilever to slide up and down on the support, the clamping assembly is movably arranged on the cantilever, the clamping assembly is used to clamp the opposite two sides of the precast concrete component, the second drive assembly is arranged on the cantilever, the second drive assembly is transmission-connected to the clamping assembly to drive the two relatively arranged clamping assemblies to move away from and towards each other, the pushing assembly is arranged on the cantilever, the pushing assembly is provided with a flat pressing portion, and the third drive assembly is arranged on the pushing assembly and connected to the flat pressing portion to push the flat pressing portion close to or away from the wall surface of the precast concrete component.

[0007] According to some embodiments of the present invention, the clamping assembly includes a force arm and a first clamping plate, the force arm has a first end and a second end, the first end is slidably arranged on the cantilever, and the first clamping plate is arranged at the second end, wherein the second drive assembly is dynamically connected to the first end to drive the force arm to slide on the cantilever.

[0008] According to some embodiments of the present invention, a slide seat is provided at the first end, and the cantilever is provided with a guide rail cooperating with the slide seat.

[0009] According to some embodiments of the present invention, the second driving assembly includes a telescopic motor and a first connecting frame, one end of the first connecting frame is fixed on the slide, and the other end of the first connecting frame is connected to the telescopic rod of the telescopic motor.

[0010] According to some embodiments of the present invention, the first clamping plate is provided with a support plate, and the first clamping plate is rotatably disposed at the second end.

[0011] According to some embodiments of the present invention, the pushing assembly includes a second connecting frame and a pressure plate, the second connecting frame is fixed on the cantilever, and the pressure plate is slidably arranged on the second connecting frame, wherein the third driving assembly is arranged on the second connecting frame and is dynamically connected to the pressure plate to drive the pressure plate to move vertically.

[0012] According to some embodiments of the present invention, the second connecting frame is provided with a sleeve, the pressing plate is provided with a shaft rod, and the shaft rod is inserted into the sleeve.

[0013] According to some embodiments of the present invention, a limiting plate is provided at one end of the shaft away from the pressure plate.

[0014] According to some embodiments of the present invention, at least one pair of oppositely arranged second clamping plates is provided on the pressing plate.

[0015] According to some embodiments of the present invention, the first drive assembly includes a screw and a rotating motor. The screw is rotatably arranged on a support, the rotating motor is arranged on the support, and the output end of the rotating motor is connected to the screw, wherein the cantilever is threadedly connected to the screw.

[0016] The precast concrete component strength testing device according to the embodiment of the present invention has at least the following beneficial effects: by relatively arranged clamping assemblies, and by setting each pair of relatively arranged clamping assemblies to an adjustable spacing state, it can be used to clamp precast concrete components of various sizes, thereby improving the applicability of the equipment and reducing the testing cost compared to the prior art; then, a thrust is applied by the pushing assembly to push the fixed precast concrete component; by recording the maximum thrust applied by the pushing assembly when the precast concrete component is destroyed, the compressive strength of the precast concrete component specimen can be calculated, thereby achieving the purpose of the precast concrete component strength test; at the same time, by driving the cantilever to slide up and down on the support through the first driving assembly, the height of the cantilever can be adjusted according to the size of the precast concrete component specimen, thereby indirectly adjusting the clamping position of the clamping assembly, thereby facilitating the stabilization of the precast concrete component specimen and laying the foundation for the subsequent action of the pushing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an embodiment of the present invention from a first perspective;

[0018] Figure 2 for Figure 1 A schematic structural diagram of a second perspective of the embodiment;

[0019] In the picture:

[0020] Support 100, cantilever 200, guide rail 210, first drive assembly 300, screw 310, rotating motor 320, clamping assembly 400, lever arm 410, slide 411, first clamping plate 420, support plate 421, second drive assembly 500, telescopic motor 510, first connecting frame 520, pushing assembly 600, second connecting frame 610, sleeve 611, pressure plate 620, shaft 621, limit plate 6211, second clamping plate 622, third drive assembly 700. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figures 1 to 2 As shown, a precast concrete component strength testing device disclosed in the present invention includes a support 100, a cantilever 200, a first drive assembly 300, a clamping assembly 400, a second drive assembly 500, a pushing assembly 600, and a third drive assembly 700.

[0026] Specifically, the cantilever 200 is slidably mounted on the support 100. Optionally, the cantilever 200 and the support 100 can slide with each other by means of a slider and a slide rail. The first drive assembly 300 is power-connected to the cantilever 200. When the first drive assembly 300 is in operation, the first drive assembly 300 drives the cantilever 200 to slide up and down on the support 100, thereby changing the height of the cantilever 200. The clamping assembly 400 is provided with at least one pair, and the two clamping assemblies 400 in each pair are arranged opposite each other. All clamping assemblies 400 are movably mounted on the cantilever 200, so that all clamping assemblies 400 can change their positions relative to the cantilever 200, thereby changing the distance between each pair of oppositely arranged clamping assemblies 400. When in operation, the clamping assemblies 400 are used to clamp the opposite sides of the precast concrete component. A second drive assembly 500 is mounted on the cantilever 200 and is in power connection with the clamping assembly 400. When in operation, the second drive assembly 500 drives the two opposing clamping assemblies 400 toward and away from each other. When the two clamping assemblies 400 approach each other, the precast concrete component is clamped therebetween, thereby preventing the precast concrete component from shifting during testing and affecting the test results. A pressing assembly 600 is mounted on the cantilever 200 and is provided with a flattening portion for compressive strength testing. A third drive assembly 700 is mounted on the pressing assembly 600 and is connected to the flattening portion. When in operation, the third drive assembly 700 pushes the flattening portion toward or away from the wall of the precast concrete component. When the flattening portion approaches until it presses against the wall of the precast concrete component, the third drive assembly 700 continuously outputs thrust, and the thrust gradually increases until the precast concrete component specimen clamped between the two clamping assemblies 400 is destroyed. At this time, the maximum thrust output by the third drive assembly 700 during the test is recorded, and the compressive strength of the precast concrete component specimen can be calculated.

[0027] In this embodiment, by relatively arranging the clamping assemblies 400 and setting each pair of relatively arranging the clamping assemblies 400 to an adjustable spacing state, it can be used to clamp concrete precast components of various sizes, thereby improving the applicability of the equipment and reducing the testing cost compared to the prior art. Then, the pushing assembly 600 applies a thrust to push the fixed concrete precast component. By recording the maximum thrust applied by the pushing assembly 600 when the concrete precast component is destroyed, the compressive strength of the concrete precast component specimen can be calculated, thereby achieving the purpose of the concrete precast component strength test. At the same time, by driving the cantilever 200 to slide up and down on the support through the first driving assembly 300, the height of the cantilever 200 can be adjusted according to the size of the concrete precast component specimen, thereby indirectly adjusting the clamping position of the clamping assembly 400, thereby stabilizing the concrete precast component specimen and laying the foundation for the subsequent function of the pushing assembly 600.

[0028] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the clamping assembly 400 includes a lever arm 410 and a first clamping plate 420. The upper end of the lever arm 410 is slidably mounted on the cantilever 200. The first clamping plate 420 is mounted on the lower end of the lever arm 410. The second drive assembly 500 is dynamically connected to the upper end of the lever arm 410. When the second drive assembly 500 is in operation, it drives the lever arm 410 to slide on the cantilever 200.

[0029] In some embodiments of the present invention, in order for the upper end of the lever arm 410 to slide smoothly on the cantilever 200, as shown in FIG. Figure 2 As shown, a slide 411 is provided at the upper end of the arm 410 , and a guide rail 210 that cooperates with the slide 411 is provided at the lower end of the cantilever 200 .

[0030] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the second drive assembly 500 includes a telescopic motor 510 and a first connecting frame 520. The telescopic motor 510 is fixedly connected to the cantilever 200. The lower end of the first connecting frame 520 is fixedly connected to the slide 411, and the upper end of the first connecting frame 520 is connected to the telescopic rod of the telescopic motor 510. When the telescopic motor 510 performs telescopic movement, the first connecting frame 520 drives the slide 411 to slide left and right on the guide rail 210, thereby causing the lever arm 410 and the first clamping plate 420 to move accordingly.

[0031] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, to stably support the precast concrete component clamped by the first clamping plate 420, a support plate 421 is provided on the first clamping plate 420, and the first clamping plate 420 is rotatably mounted at the lower end of the lever arm 410. With this arrangement, when clamping the precast concrete component, the precast concrete component can be first placed on the support plate 421, and then the first clamping plates 420, which are positioned opposite each other, are brought closer together until the first clamping plates 420 securely clamp the precast concrete component. Furthermore, because the first clamping plates 420 can rotate relative to the lever arm 410, the position of the first clamping plates 420 can be adjusted based on the actual shape of the precast concrete component, so that the support plate 421 is positioned optimally for supporting the precast concrete component. For example, if the edges of the precast concrete component are irregular, multiple pairs of opposing clamping assemblies 400 can be provided, with the first clamping plates 420 in each pair having different clamping support angles. This prevents the precast concrete component from shifting during compression testing.

[0032] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the pushing assembly 600 includes a second connecting frame 610 and a pressing plate 620. The second connecting frame 610 is fixedly connected to the cantilever 200, and the pressing plate 620 is slidably mounted on the second connecting frame 610. A third driving assembly 700 is mounted on the second connecting frame 610 and is in power connection with the pressing plate 620. When the third driving assembly 700 is in operation, the third driving assembly 700 drives the pressing plate 620 to move up and down. In this embodiment, the third driving assembly 700 can be a telescopic cylinder, a telescopic motor, a telescopic hydraulic cylinder, or the like. Preferably, a telescopic hydraulic cylinder is used, which can provide a large thrust, thereby enabling the precast concrete component to break under the action of the thrust.

[0033] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the second connecting frame 610 is provided with a sleeve 611, and the pressing plate 620 is provided with a shaft 621. The lower end of the shaft 621 is fixedly connected to the upper end surface of the pressing plate 620, and the shaft of the shaft 621 is inserted into the sleeve 611. When the third driving assembly 700 performs vertical telescopic movement, the sleeve 611 provides a limiting and guiding effect on the shaft 621, causing the pressing plate 620 to move up and down accordingly.

[0034] In some embodiments of the present invention, in order to prevent the shaft 621 from falling out of the sleeve 611, as shown in FIG. Figure 1 As shown, a limit plate 6211 is provided at one end of the shaft 621 away from the pressure plate 620. It should be noted that the limit plate 6211 connected to each shaft 621 can be provided separately, or only one limit plate 6211 can be provided, and then the upper end of each shaft 621 is connected to the limit plate 6211.

[0035] In some embodiments of the present invention, in order to prevent the concrete precast component from deviating in the lateral position when the pressing plate 620 pushes the wall surface of the concrete precast component, as shown in FIG. Figure 1 and Figure 2 As shown, at least one pair of oppositely disposed second clamping plates 622 is provided on the pressing plate 620 .

[0036] In some embodiments of the present invention, Figure 1 As shown, the first drive assembly 300 includes a screw 310 and a rotary motor 320. The screw 310 is rotatably mounted on the support 100. The rotary motor 320 is mounted on the support. The output end of the rotary motor 320 is connected to the screw 310. The cantilever 200 is threadedly connected to the screw 310. When the rotary motor 320 drives the screw 310 to rotate, the cantilever 200 moves up and down relative to the screw 310, thereby changing the height of the cantilever 200.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A concrete precast component strength testing device, characterized in that: The concrete precast component strength testing device comprises: Support; A cantilever, slidably disposed on the support; A first driving assembly, used for driving the cantilever to slide up and down on the support; At least one pair of oppositely disposed clamping assemblies, the clamping assemblies being movably disposed on the cantilever and used for clamping opposite sides of the precast concrete component; A second driving assembly is provided on the cantilever and is in transmission connection with the clamping assembly to drive the two clamping assemblies arranged opposite to each other to move away from and towards each other; A pushing assembly is provided on the cantilever and is provided with a flat pressing portion; The third driving assembly is provided on the pushing assembly and is connected to the flat pressing portion to push the flat pressing portion toward or away from the wall surface of the precast concrete component.

2. The precast concrete component strength testing device according to claim 1, characterized in that: The clamping assembly comprises: a lever arm having a first end and a second end, wherein the first end is slidably disposed on the cantilever; a first splint, disposed at the second end; Wherein, the second driving assembly is dynamically connected to the first end to drive the lever arm to slide on the cantilever.

3. The precast concrete component strength testing device according to claim 2, characterized in that: The first end is provided with a sliding seat, and the cantilever is provided with a guide rail matched with the sliding seat.

4. The precast concrete component strength testing device according to claim 3, characterized in that: The second drive assembly includes: Telescopic motor; A first connecting frame, one end of which is fixed on the sliding seat, and the other end of which is connected to the telescopic rod of the telescopic motor.

5. The precast concrete component strength testing device according to any one of claims 2 to 4, characterized in that: The first clamping plate is provided with a supporting plate, and the first clamping plate is rotatably disposed at the second end.

6. The precast concrete component strength testing device according to claim 1, characterized in that: The pushing assembly comprises: A second connecting frame is fixed on the cantilever; a pressing plate, slidably disposed on the second connecting frame; Wherein, the third driving assembly is arranged on the second connecting frame and is dynamically connected to the pressing plate to drive the pressing plate to move vertically.

7. The precast concrete component strength testing device according to claim 6, characterized in that: The second connecting frame is provided with a sleeve, and the pressing plate is provided with a shaft rod, and the shaft rod is passed through the sleeve.

8. The precast concrete component strength testing device according to claim 7, characterized in that: A limiting plate is provided at one end of the shaft away from the pressing plate.

9. The precast concrete component strength testing device according to any one of claims 6 to 8, characterized in that: At least one pair of second clamping plates arranged opposite to each other is provided on the pressing plate.

10. The precast concrete component strength testing device according to any one of claims 1 to 4 and 6 to 8, characterized in that: The first drive assembly comprises: A screw rod is rotatably mounted on the support; A rotating motor is provided on the support, wherein an output end of the rotating motor is connected to the screw rod; Wherein, the cantilever is threadedly connected to the screw rod.

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