Concrete strength testing device

Abstract

The utility model belongs to the technical field of concrete strength testing, and particularly relates to a concrete strength testing device, which comprises four pressure sensors, and is characterized by further comprising a workbench, a fixed plate is fixedly mounted at the top of the workbench, a groove is formed in one side of the fixed plate, two sliding blocks are mounted in the groove in a sliding manner, and the four pressure sensors are arranged on the workbench. Moving plates are fixedly mounted on one sides of the two sliding blocks, sliding plates are mounted on the opposite sides of the two moving plates in an inserted mode, and two pressure sensors are fixedly mounted on the opposite sides of the two sliding plates; the two fixing assemblies are located in the two movable plates correspondingly and used for fixing the two sliding plates correspondingly. When the whole device is used, it is ensured that ash on concrete can fall into the collecting box to be collected, so that workers can conduct unified treatment conveniently, hardness testing can be conducted on concrete blocks of different sizes, and using is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to concrete strength test technical field, especially relate to a concrete strength testing device. BACKGROUND

[0002] Concrete is by cementitious material, water, coarse and fine aggregate, if necessary, mixed into chemical admixture and mineral admixture according to certain proportion, is prepared, is stirred, is formed, is maintained and is obtained artificial stone, before carrying out construction, generally needs to test the strength of concrete block.

[0003] For example, the patent number CN220104641U discloses a kind of concrete strength testing device, including the track board with adjusting groove in inside, dust baffle is jointly structured and installed in the top of the inner wall of adjusting groove, L-shaped groove is opened in the bottom of the inner wall of track board, and electric motor is fixed and installed in the bottom of one end of track board, electric motor is connected with ball screw rotatablely installed in adjusting groove by motor shaft, two sliding blocks are symmetrically screw-engaged and installed on the outer edge surface of ball screw, L-shaped plate is movably installed in L-shaped groove in the middle structure and installation of the two sides of sliding block, protrusion is structured and connected in the end away from L-shaped plate of L-shaped plate, clamp is structured and connected in the end away from L-shaped plate of protrusion and movably arranged on the upper end surface of dust baffle, dust groove is opened in the upper side of dust baffle in the inner wall of adjusting groove and is used for the movable setting of protrusion, the concrete strength testing device, structure is reasonable, it is favorable to guarantee the stability of screw rod transmission, and practicality is strong.

[0004] The above patent has the following problems:

[0005] The patent has some shortcomings when in use, such as: the device, although it is not easy to make ash into the bottom of adjusting groove when in use, but ash will still enter the adjusting groove, which leads to the ash in the adjusting groove to be cleaned out by personnel after the device is used, which is relatively inconvenient, and the size of the supporting table in the device is fixed, if the size of the concrete block made is smaller than the size of the supporting table, the two clamping blocks cannot contact the concrete block, so that the hardness of the concrete block cannot be tested. In view of this, a concrete strength testing device is proposed. Utility model content

[0006] The utility model aims at providing a kind of concrete strength testing device to solve the problems raised in the above background.

[0007] Therefore, the utility model provides a kind of concrete strength testing device, including four pressure sensors, further comprising:

[0008] The workbench top is fixedly provided with a fixed plate, one side of the fixed plate is provided with a groove, two sliding blocks are slidably arranged in the groove, two moving plates are fixedly arranged on one side of the two sliding blocks, two sliding plates are insertedly arranged on opposite sides of the two moving plates, and two pressure sensors are fixedly arranged on opposite sides of the two sliding plates;

[0009] Two groups of fixing assemblies are arranged in the two moving plates respectively and used for fixing the two sliding plates respectively.

[0010] A driving assembly is arranged on the fixed plate and used for driving the two sliding blocks to move close to or away from each other.

[0011] A collecting groove is arranged on the top of the workbench, a plurality of round rods are fixedly arranged in the collecting groove, and a collecting box is slidably arranged in the collecting groove.

[0012] In the technical scheme, the worker can place the concrete block on the top of the plurality of round rods and between the two moving plates, at this time, the ash on the concrete block will directly fall into the collecting groove, under the action of gravity, the ash in the collecting groove will fall into the collecting box for collection, and if some ash enters the groove, the bottom of the groove is arranged in an inclined manner, the ash entering the groove will be displaced downward under the action of gravity, so that the ash in the groove can enter the collecting groove, and the ash in the collecting groove can enter the collecting box, thereby facilitating the worker to uniformly treat the ash, which is more convenient.

[0013] Subsequently, the worker can power on the driving assembly and the four pressure sensors, then the driving assembly will drive the two sliding blocks to move close to each other, the two sliding blocks will drive the two moving plates to move close to each other respectively, at this time, the two sliding plates will move close to each other, until the pressure sensors on the opposite sides of the two sliding plates contact the concrete block to test the hardness thereof, if the pressure sensor needs to be disassembled and repaired due to damage, the fixing assembly is arranged, the fixing assembly is disengaged from the fixing of the sliding plate, then the sliding plate can be pulled upward to be extracted from the moving plate, so that the pressure sensor can be disassembled and repaired, which is more convenient, then the worker can pull the handle on the collecting box and extract the collecting box from the collecting groove to pour out the ash in the collecting box, the collecting box can be filled with clean water, so that the scattering of the ash can be avoided.

[0014] In the above technical scheme, further, the fixing assembly comprises:

[0015] The chute is arranged in the moving plate, the sliding block is slidably arranged in the chute, one end of the sliding block penetrates one side of the chute and extends into the sliding plate, the other end of the sliding block is fixedly arranged with the pull rod, one end of the pull rod penetrates the other side of the chute and extends to the outside, and the first spring is arranged on the pull rod and in the chute.

[0016] In the technical solution, if the pressure sensor needs to be disassembled and repaired due to damage, the staff can pull the pull rod by hand, the pull rod will displace the sliding block, at this time, the first spring will be extruded and will shrink until one end of the sliding block is pulled out of the sliding plate and completely into the chute, at this time, the sliding plate will be released, and then the sliding plate can be pulled upwards, so that the sliding plate is pulled out of the moving plate, so that the pressure sensor can be disassembled and repaired, which is more convenient.

[0017] In the above technical solution, further, one end of the sliding block is inserted into the sliding plate, the pull rod is slidably connected with the chute and the moving plate, and the two ends of the first spring are tightly welded with the other end of the sliding block and the inner wall of the chute.

[0018] In the technical solution, it is ensured that one end of the sliding block can be inserted into the sliding plate, the pull rod can slide in the chute and the moving plate, and the structure of the first spring is stable.

[0019] In the above technical solution, further, the driving assembly comprises:

[0020] The bidirectional threaded rod is rotatably arranged in the groove, one end of the bidirectional threaded rod penetrates the two sliding blocks, one side of the fixed plate is fixedly arranged with the motor, and the output end of the motor penetrates one side of the fixed plate, extends into the groove, and is coaxially connected with the bidirectional threaded rod.

[0021] In the technical solution, the output shaft of the motor drives the bidirectional threaded rod to rotate, under the action of the threads, the bidirectional threaded rod drives the two sliding blocks to approach each other, and the two sliding blocks drive the two moving plates to approach each other.

[0022] In the above technical solution, further, two threads with opposite rotation directions are arranged on the bidirectional threaded rod, the sliding blocks are threadedly connected with the bidirectional threaded rod, and the output shaft of the motor is rotatably connected with the fixed plate and the groove.

[0023] In the technical solution, under the action of the threads, it is ensured that the bidirectional threaded rod can drive the two sliding blocks to approach or move away from each other when rotating, and the motor can normally operate.

[0024] In the above technical solution, further, the bottom of the groove is inclined, and the plurality of round rods are linearly and equally spaced.

[0025] In the technical solution, if some ash enters the groove, the bottom of the groove is inclined, the ash in the groove will be displaced downward under the action of gravity, so that the ash in the groove can enter the collecting tank, and the ash in the collecting tank can enter the collecting box, so that the ash can be conveniently treated by the personnel, and the plurality of circular rods are linearly and equidistantly distributed, so that concrete blocks of different sizes can be placed.

[0026] In the above technical solution, further, a limiting groove is arranged in the workbench and at one side of the collecting box, a limiting block is slidingly installed in the limiting groove, one end of the limiting block extends into the collecting box, the other end of the limiting block is fixedly installed with a second spring which is tightly welded with the inner wall of the limiting groove, and the one end of the limiting block is insertedly connected with the collecting box.

[0027] In the technical solution, when the overall device is used, the staff can move the limiting block, so that one end of the limiting block is extracted from the collecting box, at this time, the second spring is extruded and will shrink until the limiting block is completely inserted into the limiting groove, so that the collecting box is released from the fixation, then the staff can pull the handle on the collecting box by hand and extract the collecting box from the collecting tank to pour out the ash in the collecting box.

[0028] The beneficial effects of the utility model are:

[0029] 1. The concrete strength testing device, through the cooperation between the workbench, the collecting groove, the circular rod, the fixed plate, the groove and the collecting box, ensures that the ash on the concrete can fall into the collecting box for collection, so that the staff can conveniently treat the ash.

[0030] 2. The concrete strength testing device, through the cooperation between the fixed plate, the groove, the sliding block, the moving plate, the pressure sensor, the circular rod, the sliding plate, the driving assembly and the fixing assembly, ensures that the hardness of the concrete blocks of different sizes can be tested, and the device is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is an overall structure schematic view of the utility model;

[0032] Figure 2 It is a sectional structure schematic view of the fixed plate in the utility model;

[0033] Figure 3 It is a regional structure schematic view of the bidirectional threaded rod in the utility model;

[0034] Figure 4 It is a structure schematic view of the moving plate inside the utility model;

[0035] Figure 5 For the utility model Figure 4 The enlarged structure schematic view of A in the utility model

[0036] Figure 6 For the utility model, the explosion structure schematic view of the circular rod and the workbench

[0037] Figure 7 For the utility model, the structure schematic view of the inside of the workbench

[0038] Figure 8 For the utility model Figure 7 The enlarged structure schematic view of B in the utility model.

[0039] The mark in the figure indicates that:

[0040] 1, workbench;2, fixed plate;3, recess;4, two-way threaded rod;5, sliding block;6, motor;7, moving plate;8, circular rod;9, collection box;10, pressure sensor;11, sliding plate;12, sliding groove;13, pull rod;14, first spring;15, sliding block;16, second spring;17, collection groove;18, limit block;19, limit groove. Specific implementation

[0041] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those skilled in the relevant art may not be discussed in detail, but should be regarded as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as only exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

[0043] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of the terms so construed can interchange depending on the context in which it is used, and that the embodiments of the present application can be implemented not only in the order described or suggested, but also in other orders that are different from the described or suggested ones. The objects differentiated by "first", "second", and the like are generally of a kind, and the number of the objects is not limited, for example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and " / " generally means an "or" relationship between the objects before and after it.

[0044] It should be noted that in the description of the present application, the orientation or position relationship indicated by the orientation terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like is generally based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Without making the opposite statement, these orientation terms do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so they cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer of the contour of each component itself.

[0045] It should be noted that in the present application, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0046] Embodiment 1:

[0047] Please refer to Figure 1 - Figure 8 As shown in the drawings, the embodiment provides a concrete strength testing device, which comprises four pressure sensors 10, and further comprises:

[0048] The workbench 1 is fixedly provided with a fixed plate 2 on the top, a groove 3 is formed in one side of the fixed plate 2, two sliding blocks 5 are slidably arranged in the groove 3, two movable plates 7 are fixedly arranged on one side of the two sliding blocks 5, two sliding plates 11 are insertedly arranged on opposite sides of the two movable plates 7, and two pressure sensors 10 are fixedly arranged on opposite sides of the two sliding plates 11.

[0049] Two groups of fixing assemblies are arranged in the two movable plates 7 respectively and are used for fixing the two sliding plates 11 respectively.

[0050] A driving assembly is arranged on the fixed plate 2 and is used for driving the two sliding blocks 5 to move close to or away from each other.

[0051] A collecting groove 17 is formed in the top of the workbench 1, a plurality of round rods 8 are fixedly arranged in the collecting groove 17, and a collecting box 9 is slidably arranged in the collecting groove 17.

[0052] The concrete block can be placed on the top of the plurality of round rods 8 and between the two movable plates 7, so that the mortar on the concrete block falls directly into the collecting groove 17, and under the action of gravity, the mortar in the collecting groove 17 falls into the collecting box 9 for collection, and if some mortar enters the groove 3, the bottom of the groove 3 is inclined, so that the mortar in the groove 3 is displaced downward under the action of gravity, so that the mortar in the groove 3 enters the collecting groove 17, and the mortar in the collecting groove 17 enters the collecting box 9, which is convenient for personnel to uniformly process the mortar.

[0053] Then, the driving assembly and the four pressure sensors 10 are powered on, and the driving assembly drives the two sliding blocks 5 to move close to each other, the two sliding blocks 5 drive the two movable plates 7 to move close to each other, the two sliding plates 11 move close to each other, and the pressure sensors 10 on the opposite sides of the two sliding plates 11 contact the concrete block to test the hardness of the concrete block, if the pressure sensor 10 needs to be disassembled and repaired, the fixing assembly is arranged to release the fixing of the sliding plate 11, then the sliding plate 11 is pulled upward to be extracted from the movable plate 7, so that the pressure sensor 10 can be disassembled and repaired, which is more convenient.

[0054] Embodiment 2

[0055] The embodiment provides a concrete strength testing device, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features, the fixing assembly comprises:

[0056] A sliding groove 12 is formed in the moving plate 7, a sliding block 15 is slidably installed in the sliding groove 12, one end of the sliding block 15 penetrates through one side of the sliding groove 12 and extends into the sliding plate 11, the other end of the sliding block 15 is fixedly installed with a pull rod 13, one end of the pull rod 13 penetrates through the other side of the sliding groove 12 and extends to the outside, and the first spring 14 is sleeved on the pull rod 13 and located in the sliding groove 12.

[0057] When the pressure sensor 10 needs to be disassembled and repaired due to damage, the staff can pull the pull rod 13 by hand, the pull rod 13 will drive the sliding block 15 to displace, at this time, the first spring 14 will be extruded and will shrink until one end of the sliding block 15 is pulled out of the sliding plate 11 and completely into the sliding groove 12, at this time, the sliding plate 11 will be released from the fixing, and then the sliding plate 11 can be pulled upwards, so that the sliding plate 11 is pulled out of the moving plate 7, so that the pressure sensor 10 can be disassembled and repaired, which is more convenient.

[0058] Embodiment 3

[0059] The embodiment provides a concrete strength testing device, in addition to the technical scheme of the above-mentioned embodiment, further having the following technical features, one end of the sliding block 15 is inserted into the sliding plate 11, the pull rod 13 is slidably connected with the sliding groove 12 and the moving plate 7, and the two ends of the first spring 14 are tightly welded with the other end of the sliding block 15 and the inner wall of the sliding groove 12, respectively.

[0060] Among them, it is ensured that one end of the sliding block 15 can be inserted into the sliding plate 11, it is ensured that the pull rod 13 can slide in the sliding groove 12 and the moving plate 7, and it is ensured that the structure of the first spring 14 is stable.

[0061] Embodiment 4

[0062] The embodiment provides a concrete strength testing device, in addition to the technical scheme of the above-mentioned embodiment, further having the following technical features, the driving assembly comprises:

[0063] A bidirectional threaded rod 4 is rotatably installed in the groove 3, one end of the bidirectional threaded rod 4 penetrates through the two sliding blocks 5, one side of the fixed plate 2 is fixedly installed with a motor 6, and an output end of the motor 6 penetrates through one side of the fixed plate 2, extends into the groove 3 and is coaxially connected with the bidirectional threaded rod 4.

[0064] Among them, the output shaft of the motor 6 will drive the bidirectional threaded rod 4 to rotate, under the action of the thread, the bidirectional threaded rod 4 will drive the two sliding blocks 5 to move close to each other, and the two sliding blocks 5 will drive the two moving plates 7 to move close to each other, respectively.

[0065] Embodiment 5

[0066] The embodiment provides a concrete strength testing device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, two sections of threads on the bidirectional threaded rod 4 are opposite in rotation, the sliding block 5 is connected with the bidirectional threaded rod 4 in a threaded mode, and the output shaft of the motor 6 is rotatably connected with the fixed plate 2 and the groove 3.

[0067] Wherein, under the action of the thread, it is ensured that the bidirectional threaded rod 4 can drive the two sliding blocks 5 to approach or move away from each other when rotating, so that the motor 6 can normally operate.

[0068] Embodiment 6:

[0069] The embodiment provides a concrete strength testing device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, the bottom of the groove 3 is inclinedly arranged, and the plurality of round rods 8 are linearly and equidistantly distributed.

[0070] Wherein, if some ash enters the groove 3, the bottom of the groove 3 is inclinedly arranged, the ash entering the groove 3 will be displaced downward under the action of gravity, so that the ash in the groove 3 can enter the collecting groove 17, and the ash in the collecting groove 17 can enter the collecting box 9, so that personnel can conveniently process the ash, and the plurality of round rods 8 are linearly and equidistantly distributed, so that concrete blocks of different sizes can be placed.

[0071] Embodiment 7:

[0072] The embodiment provides a concrete strength testing device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features, a limiting groove 19 is formed in the workbench 1 and located at one side of the collecting box 9, a limiting block 18 is slidably installed in the limiting groove 19, one end of the limiting block 18 extends into the collecting box 9, the other end of the limiting block 18 is fixedly installed with a second spring 16 that is tightly welded with the inner wall of the limiting groove 19, and one end of the limiting block 18 is insertedly matched with the collecting box 9.

[0073] Wherein, when the overall device is used, the staff can move the limiting block 18, so that one end of the limiting block 18 is extracted from the collecting box 9, at this time, the second spring 16 is extruded and will shrink until the limiting block 18 completely enters the limiting groove 19, so that the collecting box 9 is released from fixing, then the staff can pull the handle on the collecting box 9 by hand and extract the collecting box 9 from the collecting groove 17, so that the ash in the collecting box 9 can be poured out.

[0074] Working principle: The worker can place the concrete block on the top of several round rods 8 and between two moving plates 7, at this time, the mortar on the concrete block will directly fall into the collecting groove 17, under the action of gravity, the mortar in the collecting groove 17 will fall into the collecting box 9 for collection, and if some mortar enters the groove 3, the bottom of the groove 3 is inclinedly arranged, the mortar entering the groove 3 will be displaced downward under the action of gravity, so that the mortar in the groove 3 can enter the collecting groove 17, the mortar in the collecting groove 17 will enter the collecting box 9, which is convenient for personnel to uniformly process the mortar, which is more convenient;

[0075] Then, the worker can power on the motor 6 and the four pressure sensors 10, then the output shaft of the motor 6 will drive the bidirectional threaded rod 4 to rotate, under the action of the thread, the bidirectional threaded rod 4 will drive the two sliding blocks 5 to approach each other, the two sliding blocks 5 will drive the two moving plates 7 to approach each other, at this time, the two sliding plates 11 will approach each other, until the pressure sensor 10 on the opposite side of the two sliding plates 11 contacts the concrete block to test the hardness thereof, if the pressure sensor 10 needs to be disassembled and repaired due to damage, the worker can pull the pull rod 13 by hand, the pull rod 13 will drive the sliding block 15 to displace, at this time, the first spring 14 will be extruded to shrink, until one end of the sliding block 15 is extracted from the sliding plate 11 and completely enters the sliding groove 12, at this time, the sliding plate 11 will be unfixed, then the sliding plate 11 can be pulled upward to be extracted from the moving plate 7, so that the pressure sensor 10 can be disassembled and repaired, which is more convenient;

[0076] When the overall device is used up, the worker can pull the limiting block 18, so that one end of the limiting block 18 is extracted from the collecting box 9, at this time, the second spring 16 will be extruded to shrink, until the limiting block 18 completely enters the limiting groove 19, so that the collecting box 9 is unfixed, then the worker can pull the handle on the collecting box 9 by hand and extract the collecting box 9 from the collecting groove 17, so as to pour out the mortar in the collecting box 9, the collecting box 9 can contain clean water, so as to avoid the scattering of the mortar.

[0077] The embodiments of the present application are described above in combination with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, the person skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, which all belong to the protection of the present application.

Claims

1. A concrete strength testing device comprising four pressure sensors (10), characterized in that, Also include: Workbench (1), the top of the workbench (1) is fixedly installed with a fixed plate (2), one side of the fixed plate (2) is provided with a groove (3), two sliding blocks (5) are slidably installed in the groove (3), one side of the two sliding blocks (5) is fixedly installed with a moving plate (7), the opposite side of the two moving plates (7) is insertedly installed with a sliding plate (11), the opposite side of the two sliding plates (11) is fixedly installed with two pressure sensors (10); Two groups of fixed components, two groups of the fixed components are respectively located in the two moving plates (7), and are respectively used for fixing the two sliding plates (11); Drive assembly, the drive assembly is located on the fixed plate (2), and is used for driving the two sliding blocks (5) to approach or move away from each other; Collecting groove (17), the collecting groove (17) is provided on the top of the workbench (1), a plurality of round rods (8) are fixedly installed in the collecting groove (17), and the collecting box (9) is slidably installed in the collecting groove (17).

2. A concrete strength testing device according to claim 1, wherein, The fixed component includes: The sliding groove (12) is provided in the moving plate (7), the sliding block (15) is slidably installed in the sliding groove (12), one end of the sliding block (15) penetrates through one side of the sliding groove (12) and extends into the sliding plate (11), the other end of the sliding block (15) is fixedly installed with a pull rod (13), one end of the pull rod (13) penetrates through the other side of the sliding groove (12) and extends to the outside, and the first spring (14) is sleeved on the pull rod (13) and located in the sliding groove (12).

3. A concrete strength testing device according to claim 2, wherein, One end of the sliding block (15) is insertedly matched with the sliding plate (11), the pull rod (13) is slidably connected with the sliding groove (12) and the moving plate (7), and the two ends of the first spring (14) are tightly welded with the other end of the sliding block (15) and the inner wall of the sliding groove (12) respectively.

4. The concrete strength testing apparatus of claim 1, wherein, The drive assembly includes: The bidirectional threaded rod (4) is rotatably installed in the groove (3), one end of the bidirectional threaded rod (4) penetrates through the two sliding blocks (5), one side of the fixed plate (2) is fixedly installed with a motor (6), and the output end of the motor (6) extends to the groove (3) through one side of the fixed plate (2) and is coaxially connected with the bidirectional threaded rod (4).

5. A concrete strength testing device according to claim 4, wherein, The bidirectional threaded rod (4) is provided with two sections of threads with opposite rotation directions, the sliding block (5) is threadedly connected with the bidirectional threaded rod (4), and the output shaft of the motor (6) is rotatably connected with the fixed plate (2) and the groove (3).

6. The concrete strength testing apparatus of claim 1, wherein The bottom of the groove (3) is inclinedly arranged, and a plurality of round rods (8) are linearly and equidistantly distributed.

7. The concrete strength testing apparatus of claim 1, wherein The limit groove (19) is provided in the workbench (1) and located on one side of the collecting box (9), the limit block (18) is slidably installed in the limit groove (19), one end of the limit block (18) extends into the collecting box (9), the other end of the limit block (18) is fixedly installed with the second spring (16) which is tightly welded with the inner wall of the limit groove (19), and one end of the limit block (18) is insertedly matched with the collecting box (9).

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