Concrete quality detection device for hydraulic engineering

Abstract

The invention relates to the technical field of concrete quality detection, and discloses a concrete quality detection device for hydraulic engineering, which comprises a base, the top of the base is fixedly connected with a support frame, and the side wall of the support frame is fixedly connected with a numerical control instrument. When a group of contact assemblies at the top extrudes concrete, a plurality of contact square plates bear the pressure of the concrete, and the pressure borne by the contact square plates acts on hydraulic pistons to force the hydraulic pistons to slide along the inner walls of through hole grooves, so that hydraulic oil in the box body expands to other positions; the expansion force forces the other fixing rods to drive the contact square plates to be in contact with the outer wall of the concrete, at the moment, the outer walls of the multiple contact square plates are tightly attached to the outer wall of the concrete, and the contact square plates at the upper end and the lower end are tightly attached to the outer wall of the concrete, so that the equipment can adapt to concrete block samples with irregular outer walls before pressure detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete quality detection, in particular to a concrete quality detection device for water conservancy projects. BACKGROUND

[0002] The concrete quality inspection generally includes compressive strength, concrete physical properties, flexural strength, elastic modulus, impermeability, carbonation depth, rebound value, and the like. For the solidified concrete, the concrete physical properties and flexural strength are generally detected. The concrete physical properties are generally detected by polishing the concrete sample through a roller, and the flexural strength of the concrete is generally detected by using a press machine to press the concrete sample until the concrete sample is broken.

[0003] However, the flexural strength can only be detected for limited samples (such as standardized samples in the form of a cylinder, a long strip, a square block, etc.), and for the samples after an accident (irregular in shape), the pressure plate of the press machine is in a planar state, so that the pressure surface of the irregular sample is small, and the pressure of the press machine is concentrated on the pressure surface, which causes the concrete block to crack in advance, affecting the detection quality. In view of the above problems, the following scheme is proposed. SUMMARY

[0004] To solve the above technical problems, the present application provides a concrete quality detection device for water conservancy projects, which comprises a base, a support frame fixedly connected to the top of the base, and a numerical control instrument fixedly connected to the side wall of the support frame, and further comprises: a pressure applying mechanism arranged on the top of the base; a pressure receiving mechanism fixedly connected to the inner wall of the pressure applying mechanism; a limiting mechanism fixedly connected to the side wall of the pressure applying mechanism; wherein, before use, the concrete block is placed on the top of the pressure receiving mechanism, and then the numerical control instrument drives the pressure applying mechanism to clamp and crush the pressure receiving mechanism.

[0005] Preferably, the pressure applying mechanism comprises: a sliding assembly slidingly connected to the inner wall of the support frame; a load bearing assembly fixedly connected to the top of the base; wherein, in use, the numerical control instrument drives the sliding assembly to slide up and down along the inner wall of the support frame.

[0006] Preferably, the pressure receiving mechanism comprises: a contact assembly slidingly connected to the inner wall of the load bearing assembly; a pressure receiving assembly fixedly connected to the inner wall of the load bearing assembly; Before use, a concrete block needs to be placed on top of the contact component. At this time, the pressure component is compressed and deformed, accumulating potential energy.

[0007] Preferably, the limiting mechanism includes: The assembly components are fixedly connected to the side wall of the load-bearing components; The blocking component is fixedly connected to the inner wall of the housing; The hydraulic oil inside the accumulator component and the load-bearing component is interconnected. When the load-bearing component enters the accumulator component, the accumulator component deforms and collects the excess hydraulic oil.

[0008] Preferably, the sliding assembly includes a sliding rod slidably connected to the inner wall of the support frame, a telescopic rod fixedly connected to the top of the sliding rod, and a fixed plate fixedly connected to the output end of the telescopic rod; The load-bearing components, pressure-bearing mechanism, and restraint mechanism are in two parts: one part is fixed to the top of the base, and the other part is fixedly connected to the bottom of the fixed plate, with the two parts being mirror images of each other.

[0009] Preferably, the load-bearing component includes a box fixedly connected to the top of the base, a sliding block slidably connected to the inner wall of the box, and a through-hole groove opened on the inner wall of the sliding block; The sliding block is equipped with a sealing ring at the sliding position of the box body. When the fixed plate drives another pressure mechanism and the limiting mechanism to squeeze the concrete, the sliding block at the bottom will slide down along the inner wall of the box body.

[0010] Preferably, the contact assembly includes a hydraulic piston slidably connected to the inner wall of the through-hole groove, a fixed rod fixedly connected to the top of the hydraulic piston, a ball rotatably connected to the top of the fixed rod, and a contact square plate fixedly connected to the top of the ball. Before use, the concrete block is placed on top of the contact plate. Then, the fixing plate drives another contact plate to slide downward, so that the upper and lower contact plates clamp the concrete block. At this time, the resistance of the contact plate will force the hydraulic piston to slide along the inner wall of the through hole groove.

[0011] Preferably, the pressure-bearing component includes a spring fixedly connected to the bottom of the hydraulic piston, and a retaining ring fixedly connected to the inner wall of the through-hole groove; The housing is filled with hydraulic oil. When the sliding block slides down, it squeezes the hydraulic oil through the blocking component and into the accumulation component. In addition, under normal conditions, the fixed ring is in an extended state. When the sliding block slides down, the fixed ring is compressed and accumulates potential energy.

[0012] Preferably, the accumulator assembly includes a housing fixedly connected to the side wall of the housing, a flow port is provided on the side wall of the housing, a sliding plate is slidably connected to the inner wall of the housing, and a compression spring is fixedly connected to the top of the sliding plate. When the sliding block slides downward under pressure, the hydraulic oil inside the housing is pressurized and enters the interior of the outer shell through the flow port. The corresponding hydraulic oil will force the sliding plate to slide upward along the inner wall of the outer shell, causing the compression spring to be compressed and generate potential energy.

[0013] Preferably, the blocking component includes a partition fixedly connected to the inner wall of the box, a support rod fixedly connected to the bottom of the partition, and a flow port 2 opened at the top of the partition; When the sliding block slides downwards, the hydraulic oil at the bottom of the sliding block will be pushed downwards from the second flow port and enter the bottom of the sliding plate through the first flow port.

[0014] The present invention has the following beneficial effects: (1) In view of the problem of different sample shapes, the present invention has two sets of load-bearing components, pressure-bearing mechanism and restriction mechanism inside the equipment. When the top set of contact components squeezes the concrete, multiple contact square plates will bear the pressure of the concrete. The pressure on the contact square plates will act on the hydraulic piston, forcing the hydraulic piston to slide along the inner wall of the through hole groove and squeeze the hydraulic oil at the bottom of the through hole groove, so that the hydraulic oil inside the box expands to other positions. This expansion force will force the other fixed rods to drive the contact square plates to contact the outer wall of the concrete. At this time, the outer walls of multiple contact square plates will be in close contact with the outer wall of the concrete, and the contact square plates at the upper and lower ends are in close contact with the outer wall of the concrete. Through the application of the above components, the equipment can adapt to concrete block samples with irregular outer walls before pressure testing. (2) This invention utilizes the characteristic of the contact assembly sliding along the inner wall of the through-hole groove. An accumulation assembly is provided inside the equipment. When the top of the contact plate is pressed, the spring 1 is compressed and deformed. If all the contact plates in the same group are in contact with the outer wall of the concrete block, the hydraulic pistons in the same group cannot continue to slide. As the pressure continues to drop, some of the springs 1 will be in a fully compressed state, so that the pressure on the contact plate will be transmitted to the sliding block through the spring 1, causing the sliding block to slide downward. In addition, when hydraulic oil enters through the flow port 2 and the flow port 1... When the sliding plate is at the bottom, it will slide upward along the inner wall of the outer shell, causing the compression spring to be compressed and contract. When the above components are running, the compression spring and the spring will deform under pressure. The potential energy generated by the deformation will act on the hydraulic piston through the hydraulic oil, forcing the hydraulic piston to drive the contact plate to clamp the outer wall of the concrete. This allows the contact plates at the top and bottom ends to apply high-intensity pressure to the outer wall of the concrete before the concrete is pressed, removing some of the concrete protrusions and preventing small protrusions on the outer wall of the concrete block from cracking during the subsequent pressing, which would affect the measurement accuracy of the equipment. (3) This invention utilizes the characteristic of the sliding block sliding downward under pressure. A partition is set inside the equipment. When the sliding block slides downward, the outer wall of all contact square plates is in contact with the outer wall of the concrete block. As the sliding block continues to move downward, the bottom of the sliding block is pressed against the top of the partition. This causes the multiple through-hole slots to change from an interconnected state to an independent state. At this time, the sliding rod begins to press down and the pressure crushing process officially begins. The CNC instrument on the side will record the pressure information. As the pressure continues to increase, the concrete is crushed. Since the multiple through-hole slots are in an independent state, even if some of the concrete blocks on the top of the contact square plates are crushed during the crushing process, the spring cannot drive the contact square plates to slide up and down under the restriction of the hydraulic oil inside the through-hole slots. Through the application of the above components, the contact components in the equipment are all in a fixed state after the official pressing, preventing the contact square plates from sliding under excessive pressure and causing pressure data errors.

[0015] (4) The present invention utilizes multiple contact plates to cover a portion of the concrete block when pressing. As the pressure increases, since the pressure applied to the outer wall of the concrete block is a single area, even if the concrete subsequently collapses under pressure, the collapsed soil block is greatly affected by the pressure surface, and the collapsed concrete block is restricted by other pressure surfaces, so it will not fly away. In addition, after each test is completed, as the sliding rod resets, the pressure applied to the concrete block is removed, and the first spring and the first compression spring will drive the equipment to reset, so that after the equipment completes a single press, the internal components can quickly enter the standby state. After the staff removes the debris from the top of the sliding component, the equipment can quickly be put into secondary work. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention from the left side; Figure 2 This is a schematic diagram of the overall structure of the present invention on the right side; Figure 3 This is a cross-sectional schematic diagram of the pressure application mechanism of the present invention; Figure 4 This is a cross-sectional schematic diagram of the load-bearing component of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a cross-sectional schematic diagram of the limiting mechanism of the present invention; Figure 7 This is a schematic diagram of the working state of the pressure-bearing mechanism of the present invention; Figure 8 This is a cross-sectional schematic diagram of the pressure-bearing component of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Pressure applying mechanism; 11. Sliding assembly; 12. Load-bearing assembly; 13. Base; 14. Support frame; 15. CNC instrument; 111. Sliding rod; 112. Telescopic rod; 113. Fixed plate; 121. Box; 122. Sliding block; 123. Through-hole groove; 2. Pressure receiving mechanism; 21. Contact assembly; 22. Pressure receiving assembly; 211. Hydraulic piston; 212. Fixed rod; 213. Ball bearing; 214. Contact square plate; 221. Spring one; 222. Fixed ring; 3. Restriction mechanism; 31. Accumulation assembly; 32. Blocking assembly; 311. Outer shell; 312. Flow port one; 313. Sliding plate; 314. Compression spring one; 321. Partition plate; 322. Support rod; 323. Flow port two. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figure 1 - Figure 4 This invention relates to a concrete quality testing device for hydraulic engineering projects, comprising a base 13, a support frame 14 fixedly connected to the top of the base 13, and a CNC instrument 15 fixedly connected to the side wall of the support frame 14, and further comprising: Pressure applying mechanism 1 is disposed on the top of base 13; The pressure-bearing mechanism 2 is fixedly connected to the inner wall of the pressure-applying mechanism 1; The limiting mechanism 3 is fixedly connected to the side wall of the pressure applying mechanism 1; Before use, the concrete block is placed on top of the pressure-bearing mechanism 2, and then the CNC instrument 15 drives the pressure-applying mechanism 1 to clamp and crush the pressure-bearing mechanism 2.

[0021] Pressure application mechanism 1 includes: Sliding component 11 is slidably connected to the inner wall of support frame 14; The load-bearing component 12 is fixedly connected to the top of the base 13; In use, the CNC instrument 15 drives the sliding component 11 to slide up and down along the inner wall of the support frame 14.

[0022] The pressure-bearing mechanism 2 includes: Contact component 21 is slidably connected to the inner wall of load-bearing component 12; The pressure-bearing component 22 is fixedly connected to the inner wall of the load-bearing component 12; Before use, the concrete block needs to be placed on top of the contact component 21. At this time, the pressure component 22 is compressed and deformed, and accumulates potential energy.

[0023] Restricted agency 3 includes: The accumulator component 31 is fixedly connected to the side wall of the load-bearing component 12; The blocking component 32 is fixedly connected to the inner wall of the housing 121; The hydraulic oil inside the accumulator component 31 and the load-bearing component 12 is in a state of communication. When the load-bearing component 12 enters the accumulator component 31, the accumulator component 31 deforms and collects excess hydraulic oil.

[0024] Example 2, please refer to Figure 2 - Figure 8 The present invention is a concrete quality testing device for water conservancy projects. Based on Example 1, the sliding component 11 includes a sliding rod 111 that is slidably connected to the inner wall of the support frame 14. A telescopic rod 112 is fixedly connected to the top of the sliding rod 111, and a fixing plate 113 is fixedly connected to the output end of the telescopic rod 112. The load-bearing component 12, the pressure-bearing mechanism 2, and the limiting mechanism 3 are in two parts. One part is fixed to the top of the base 13, and the other part is fixedly connected to the bottom of the fixing plate 113. The two parts are designed to be mirror images of each other.

[0025] The load-bearing component 12 includes a box 121 fixedly connected to the top of the base 13. A sliding block 122 is slidably connected to the inner wall of the box 121, and a through hole groove 123 is provided on the inner wall of the sliding block 122. The multiple contact plates 214 cover a portion of the concrete block during pressing. As the pressure increases, the pressure applied to the outer wall of the concrete block is concentrated on a single area. Even if the concrete subsequently cracks under pressure, the cracked concrete blocks are more affected by the pressure surface and are constrained by other pressure surfaces, preventing them from flying off. Furthermore, after each test, the pressure applied to the concrete block is released as the sliding rod 111 resets. Spring 221 and compression spring 314 then reset the equipment, allowing the internal components to quickly enter a standby state after a single press. After the operator removes the debris from the top of the sliding component 11, the equipment can be quickly put into operation again.

[0026] The contact assembly 21 includes a hydraulic piston 211 that is slidably connected to the inner wall of the through-hole groove 123. A fixing rod 212 is fixedly connected to the top of the hydraulic piston 211. A ball bearing 213 is rotatably connected to the top of the fixing rod 212. A contact square plate 214 is fixedly connected to the top of the ball bearing 213. Before use, the equipment is fixed in the required position. Then, the concrete block to be tested is placed on top of the contact plate 214. The power supply of the telescopic rod 112 is then turned on, causing the telescopic rod 112 to slide the base 13 downwards. This causes the upper load-bearing component 12, the pressure-bearing mechanism 2, and the limiting mechanism 3 to slide downwards, and the upper contact plate 214 to be in close contact with the top of the concrete block. At this time, the telescopic rod 112 stops extending and remains stationary.

[0027] The pressure-bearing component 22 includes a spring 221 fixedly connected to the bottom of the hydraulic piston 211, and a retaining ring 222 fixedly connected to the inner wall of the through-hole groove 123. To address the issue of samples with varying shapes, the equipment incorporates two sets of load-bearing components 12, a pressure-bearing mechanism 2, and a limiting mechanism 3. When the top set of contact components 21 compresses the concrete, multiple contact plates 214 bear the pressure of the concrete. This pressure acts on the hydraulic piston 211, forcing it to slide along the inner wall of the through-hole groove 123 and compress the hydraulic oil at the bottom of the through-hole groove 123. This causes the hydraulic oil inside the housing 121 to expand to other locations. This expansion force forces the remaining fixing rods 212 to bring the contact plates 214 into contact with the outer wall of the concrete. At this time, the outer walls of the multiple contact plates 214 are tightly attached to the outer wall of the concrete, with both the upper and lower contact plates 214 tightly attached to the outer wall of the concrete. Through the application of these components, the equipment can adapt to concrete block samples with irregular outer walls before pressure testing.

[0028] The accumulator assembly 31 includes a housing 311 fixedly connected to the side wall of the housing 121. A flow port 312 is provided on the side wall of the housing 311. A sliding plate 313 is slidably connected to the inner wall of the housing 311. A compression spring 314 is fixedly connected to the top of the sliding plate 313. Utilizing the downward sliding characteristic of the sliding block 122 under pressure, a partition 321 is installed inside the equipment. When the sliding block 122 slides downwards, the outer walls of all contact square plates 214 are in contact with the outer wall of the concrete block. As the sliding block 122 continues to move downwards, its bottom presses tightly against the top of the partition 321. This causes the multiple through-hole slots 123 to change from an interconnected state to an independent state. At this point, the sliding rod 111 begins to press down, officially initiating the pressure crushing process. Meanwhile, the CNC instrument 15... The pressure information is recorded. As the pressure increases, the concrete begins to crumble. Since the multiple through-hole slots 123 are independent, even during the crumbling process, some concrete blocks on the top of the contact plate 214 are already crumbled. Under the restriction of the hydraulic oil inside the through-hole slots 123, the spring 221 cannot drive the contact plate 214 to slide up and down. Through the application of the above components, the contact components 21 in the equipment are all in a fixed state after the formal pressing, preventing the contact plate 214 from sliding under excessive pressure, which would cause incorrect pressure data.

[0029] The blocking component 32 includes a partition 321 fixedly connected to the inner wall of the housing 121, a support rod 322 fixedly connected to the bottom of the partition 321, and a flow port 323 opened at the top of the partition 321. Utilizing the characteristic of the contact component 21 sliding along the inner wall of the through-hole groove 123, an accumulation component 31 is provided inside the equipment. When the top of the contact plate 214 is pressed, the spring 221 deforms under pressure. If all the contact plates 214 in the same group are in contact with the outer wall of the concrete block, the hydraulic pistons 211 in the same group cannot continue to slide. Due to the continuous downward pressure, some of the springs 221 will be in a fully compressed state, so that the pressure on the contact plate 214 will be transmitted to the sliding block 122 through the springs 221, causing the sliding block 122 to slide downward. In addition, hydraulic oil flows through the second flow port 323 and the first flow port 31. When the 2nd component enters the bottom of the sliding plate 313, the sliding plate 313 will slide upward along the inner wall of the outer shell 311, causing the compression spring 314 to be compressed and contract. When the above components are running, the compression spring 314 and spring 221 are compressed and deformed. The potential energy generated by the deformation acts on the hydraulic piston 211 through the hydraulic oil, forcing the hydraulic piston 211 to drive the contact square plate 214 to clamp the outer wall of the concrete. This allows the contact square plates 214 at the upper and lower ends to apply high-intensity pressure to the outer wall of the concrete before the concrete is formally pressed, removing some of the concrete protrusions and preventing small protrusions on the outer wall of the concrete block from cracking during the subsequent formal pressing, which would affect the measurement accuracy of the equipment.

[0030] A specific application of this embodiment is as follows: Before use, the device is fixed in the required position, and then the concrete block to be tested is placed on the top of the contact plate 214. Then the power supply of the telescopic rod 112 is turned on, so that the telescopic rod 112 drives the base 13 to slide down, so that the upper load-bearing component 12, the pressure-bearing mechanism 2 and the limiting mechanism 3 slide down, and the upper contact plate 214 is pressed tightly against the top of the concrete block. At this time, the telescopic rod 112 stops extending and remains stationary. To address the issue of samples with varying shapes, the equipment is equipped with two sets of load-bearing components 12, a pressure-bearing mechanism 2, and a limiting mechanism 3. When the top set of contact components 21 compresses the concrete, multiple contact plates 214 bear the pressure of the concrete. The pressure on the contact plates 214 acts on the hydraulic piston 211, forcing the hydraulic piston 211 to slide along the inner wall of the through-hole groove 123 and compress the hydraulic oil at the bottom of the through-hole groove 123. This causes the hydraulic oil inside the housing 121 to expand to other positions. This expansion force forces the remaining fixing rods 212 to drive the contact plates 214 to contact the outer wall of the concrete. At this time, the outer walls of multiple contact plates 214 will be in close contact with the outer wall of the concrete, and the contact plates 214 at both the top and bottom ends will be in close contact with the outer wall of the concrete. Through the application of the above components, the equipment can adapt to concrete block samples with irregular outer walls before pressure testing. Taking advantage of the sliding characteristic of the contact component 21 along the inner wall of the through-hole groove 123, an accumulation component 31 is provided inside the equipment. When the top of the contact plate 214 is pressed, the spring 221 deforms under pressure. If all the contact plates 214 in the same group are in contact with the outer wall of the concrete block, the hydraulic pistons 211 in the same group cannot continue to slide. As the pressure continues to drop, some of the springs 221 will be in a fully compressed state, so that the pressure on the contact plate 214 will be transmitted to the sliding block 122 through the springs 221, causing the sliding block 122 to slide downward. In addition, when hydraulic oil enters through the flow port 323 and the flow port 312... When the sliding plate 313 is inserted to the bottom, the sliding plate 313 will slide upward along the inner wall of the outer shell 311, and the compression spring 314 will be compressed and contracted. When the above components are running, the compression spring 314 and spring 221 will be compressed and deformed. The potential energy generated by the deformation will act on the hydraulic piston 211 through the hydraulic oil, forcing the hydraulic piston 211 to drive the contact square plate 214 to clamp the outer wall of the concrete. This allows the contact square plates 214 at the upper and lower ends to apply high-intensity pressure to the outer wall of the concrete before the concrete is pressed, removing some of the concrete protrusions and preventing small protrusions on the outer wall of the concrete block from cracking during the subsequent pressing, which would affect the measurement accuracy of the equipment. Utilizing the characteristic of the sliding block 122 sliding downwards under pressure, a partition 321 is installed inside the equipment. When the sliding block 122 slides downwards, the outer walls of all contact plates 214 are in contact with the outer walls of the concrete block. As the sliding block 122 continues to move downwards, its bottom is pressed tightly against the top of the partition 321. This causes the multiple through-hole slots 123 to change from an interconnected state to an independent state. At this time, the sliding rod 111 begins to press down, and the pressure crushing process officially begins. The CNC instrument 15 records the pressure information. As the pressure increases, the concrete is crushed. Because the multiple through-hole slots 123 are in an independent state, even if some concrete blocks on the top of the contact plates 214 are crushed during the crushing process, the spring 221 cannot drive the contact plates 214 to slide up and down due to the limitation of the hydraulic oil inside the through-hole slots 123. Through the application of the above components, the contact components 21 in the equipment are all in a fixed state after the official pressing, preventing the contact plates 214 from sliding under excessive pressure and causing incorrect pressure data.

[0031] When multiple contact plates 214 are pressed, a portion of the concrete block is covered. As the pressure increases, since the pressure applied to the outer wall of the concrete block is on a single surface, even if the concrete subsequently cracks under pressure, the cracked soil block is affected by the larger pressure surface, while the cracked concrete block is limited by other pressure surfaces, preventing it from flying off. In addition, after each test, as the sliding rod 111 resets, the pressure applied to the concrete block is removed, and the spring 221 and the compression spring 314 will drive the equipment to reset. This allows the internal components of the equipment to quickly enter the standby state after a single press. After the staff removes the debris from the top of the sliding component 11, the equipment can be quickly put into secondary operation.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A concrete quality testing device for water conservancy projects, comprising a base (13), a support frame (14) fixedly connected to the top of the base (13), and a CNC instrument (15) fixedly connected to the side wall of the support frame (14), characterized in that, Also includes: A pressure applying mechanism (1) is disposed on top of the base (13); The pressure receiving mechanism (2) is fixedly connected to the inner wall of the pressure applying mechanism (1); A limiting mechanism (3) is fixedly connected to the side wall of the pressure applying mechanism (1); Before use, the concrete block is placed on top of the pressure-bearing mechanism (2), and then the CNC instrument (15) drives the pressure-applying mechanism (1) to clamp and crush the pressure-bearing mechanism (2).

2. The concrete quality testing device for water conservancy projects according to claim 1, characterized in that: The pressure application mechanism (1) includes: A sliding assembly (11) is slidably connected to the inner wall of the support frame (14); A load-bearing component (12) is fixedly connected to the top of the base (13); In use, the CNC instrument (15) drives the sliding component (11) to slide up and down along the inner wall of the support frame (14).

3. The concrete quality testing device for water conservancy projects according to claim 2, characterized in that: The pressure-bearing mechanism (2) includes: Contact component (21), which is slidably connected to the inner wall of load-bearing component (12); The pressure-bearing component (22) is fixedly connected to the inner wall of the load-bearing component (12); Before use, the concrete block needs to be placed on top of the contact component (21). At this time, the pressure component (22) is compressed and deformed, and accumulates potential energy.

4. The concrete quality testing device for water conservancy projects according to claim 3, characterized in that: The limiting mechanism (3) includes: An accumulation component (31) is fixedly connected to the side wall of the load-bearing component (12); A blocking component (32) is fixedly connected to the inner wall of the housing (121); The hydraulic oil inside the accumulator (31) and the load-bearing component (12) is in a state of communication. When the load-bearing component (12) enters the accumulator (31), the accumulator (31) deforms and collects excess hydraulic oil.

5. The concrete quality testing device for water conservancy projects according to claim 4, characterized in that: The sliding assembly (11) includes a sliding rod (111) slidably connected to the inner wall of the support frame (14), a telescopic rod (112) is fixedly connected to the top of the sliding rod (111), and a fixing plate (113) is fixedly connected to the output end of the telescopic rod (112). Among them, the load-bearing component (12), the pressure-bearing mechanism (2) and the limiting mechanism (3) are two parts, one part is fixed on the top of the base (13) and the other part is fixedly connected to the bottom of the fixing plate (113), and the two parts are mirrored.

6. The concrete quality testing device for water conservancy projects according to claim 5, characterized in that: The load-bearing component (12) includes a box (121) fixedly connected to the top of the base (13), and a sliding block (122) is slidably connected to the inner wall of the box (121), and a through hole groove (123) is opened on the inner wall of the sliding block (122). Among them, the sliding block (122) and the box (121) are provided with a sealing ring. When the fixed plate (113) drives another pressure mechanism (2) and the limiting mechanism (3) to squeeze the concrete, the sliding block (122) at the bottom will slide down along the inner wall of the box (121).

7. The concrete quality testing device for water conservancy projects according to claim 6, characterized in that: The contact assembly (21) includes a hydraulic piston (211) slidably connected to the inner wall of the through-hole groove (123). A fixing rod (212) is fixedly connected to the top of the hydraulic piston (211). A ball bearing (213) is rotatably connected to the top of the fixing rod (212). A contact square plate (214) is fixedly connected to the top of the ball bearing (213). Before use, the concrete block is placed on top of the contact plate (214). Then, the fixing plate (113) drives another contact plate (214) to slide downward, so that the upper and lower contact plates (214) clamp the concrete block. At this time, the resistance of the contact plate (214) will force the hydraulic piston (211) to slide along the inner wall of the through hole groove (123).

8. A concrete quality testing device for water conservancy projects according to claim 7, characterized in that: The pressure-bearing component (22) includes a spring (221) fixedly connected to the bottom of the hydraulic piston (211), and a retaining ring (222) fixedly connected to the inner wall of the through-hole groove (123). The housing (121) is filled with hydraulic oil. When the sliding block (122) slides down, the sliding block (122) squeezes the hydraulic oil, and the hydraulic oil enters the accumulation component (31) through the blocking component (32). In addition, under normal conditions, the fixed ring (222) is in an extended state. When the sliding block (122) slides down, the fixed ring (222) is compressed and accumulates potential energy.

9. A concrete quality testing device for water conservancy projects according to claim 6, characterized in that: The accumulating component (31) includes a housing (311) fixedly connected to the side wall of the box (121), a flow port (312) is provided on the side wall of the housing (311), a sliding plate (313) is slidably connected to the inner wall of the housing (311), and a compression spring (314) is fixedly connected to the top of the sliding plate (313). When the sliding block (122) is pressed down, the hydraulic oil inside the housing (121) is pressurized and enters the interior of the outer shell (311) through the flow port (312). The corresponding hydraulic oil will force the sliding plate (313) to slide up along the inner wall of the outer shell (311), so that the compression spring (314) is compressed and generates contraction to accumulate potential energy.

10. A concrete quality testing device for water conservancy projects according to claim 9, characterized in that: The blocking component (32) includes a partition (321) fixedly connected to the inner wall of the box (121), a support rod (322) fixedly connected to the bottom of the partition (321), and a flow port (323) opened at the top of the partition (321). When the sliding block (122) slides downward, the hydraulic oil at the bottom of the sliding block (122) will be pushed to flow downward from the second flow port (323) and enter the bottom of the sliding plate (313) through the first flow port (312).

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