A device and method for detecting the quality of sleeve grouting of a fabricated shear wall

Abstract

The present application relates to the field of grouting quality detection, in particular to a kind of assembly type shear wall sleeve grouting quality detection device and detection method.The testing instrument shell is opened in two notches on the testing instrument shell;Drive mechanism is installed in the testing instrument shell, including drive motor and the drive spindle driven by it;Two groups of transmission belts are arranged on the drive spindle;Two groups of percussion force storage mechanisms are respectively connected with the two groups of transmission belts, and are distributed in axial symmetry with the center of the drive spindle as the shaft;Knocking limiting mechanism is arranged in the notch;Pushing mechanism is fixedly installed at the front end of the drive spindle, for changing the knocking position of knocking limiting mechanism;Sound source collection mechanism is arranged on the upper and lower sides of each notch.The present application realizes high-precision impact detection through synchronous knocking mechanism, and automatically switches detection point position, improves the acoustic analysis precision and detection efficiency of sleeve grouting quality.

Description

Technical Field

[0001] This invention relates to the field of grouting quality testing, specifically to a device and method for testing the grouting quality of prefabricated shear wall sleeves. Background Technology

[0002] Precast shear wall structures refer to precast concrete structures in which all or part of the main load-bearing components, such as shear walls, beams, and slabs, are composed of precast concrete components. Sleeve grouting connection is the primary connection method. Ribbed steel bars are inserted into grooved steel sleeves with a dedicated high-strength, non-shrink grout, forming a reliable rigid connection that achieves a connection strength exceeding that of the steel reinforcement. There are two forms: semi-grouting and full-grouting. Post-construction quality inspection is also extremely important, generally employing ultrasonic testing, X-ray testing, core sampling, pressure testing, and impact testing. Ultrasonic testing is significantly affected by factors such as the size and shape of the concrete components, the distribution of the reinforcing bars, and the difference in acoustic impedance between the grout and the concrete. X-ray testing offers high accuracy but poses radiation hazards to humans, requiring strict protective measures; the equipment is expensive and the operation is complex. Core sampling is intuitive and accurate but is a destructive testing method that can cause some damage to the structure. Applying a certain pressure of air or water into the sleeve and observing the pressure change helps determine the sealing and compactness of the grout. If the pressure drops too quickly, it may indicate grout leakage or incomplete compaction. This method is suitable for certain types of sleeves, but the operation is relatively complex, requires specialized equipment, and the results are not immediately apparent. The tapping method is the simplest method in testing. The original method involved tapping with a small hammer and manually listening to the sound to determine if there was a hollow area. However, manual tapping is affected by parameters such as the type and weight of the tapping tool, the tapping force, the tapping location, and the frequency. Therefore, the data from manual tapping can only serve as a supplementary reference. Nevertheless, tapping testing is the fastest way to produce results and does not cause any damage to the operator or the tested wall surface. In the document CN119164872A, which discloses a testing device and method for testing the grouting quality of prefabricated building sleeves, the method of tapping is also proposed as the main testing method to test the grouting quality. However, the tapping frequency at the same point is low in this testing scheme, and the result of a single tap cannot be used as the final basis. The tapping frequency is also extremely important. Changing the testing position only requires the operator to change it, which makes the testing more flexible. However, the equipment needs to be moved to perform testing outside the equipment's coverage area, which is not convenient to carry and move. Secondly, the equipment itself needs to meet the weight requirements when operating it, and it needs to be lightweight when moving it. Many devices cannot meet these requirements. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a device and method for detecting the grouting quality of prefabricated shear wall sleeves.

[0004] This invention adopts the following technical solution: a prefabricated shear wall sleeve grouting quality testing device, comprising:

[0005] The tester housing has two slots.

[0006] The drive mechanism, installed inside the housing of the tester, includes a drive motor and a drive spindle driven by it;

[0007] Two sets of transmission belts are mounted on the drive spindle;

[0008] Two sets of striking energy storage mechanisms are respectively connected to the two sets of transmission belts, and are distributed symmetrically about the center of the drive shaft.

[0009] A striking limit mechanism is provided within the slot.

[0010] A pushing mechanism is fixedly installed at the front end of the drive spindle and is used to change the striking position of the striking limiting mechanism;

[0011] A sound source collection mechanism is installed on the upper and lower sides of each of the slots;

[0012] The drive spindle drives the two sets of striking force storage mechanisms to operate synchronously through the two sets of transmission belts. The impact force generated by the striking force storage mechanism acts on the striking limit mechanism to strike the detection surface. The sound source collection mechanism is used to collect the sound waves generated by the striking.

[0013] In some embodiments, the tester housing further includes:

[0014] The handle is rotatably connected to the tester housing;

[0015] The counterweight compartment is located at the lower end of the tester housing and has a hollow structure.

[0016] An inclined operating surface is located at the upper end of the tester housing, on which the processing control and operation module and the display screen are distributed;

[0017] The energy storage mechanism is built into the housing of the test instrument;

[0018] The power port is pre-installed on the side of the tester housing and serves as the charging port for the energy storage mechanism.

[0019] In some embodiments, the transmission belts are distributed in an alternating vertical structure on the drive shaft;

[0020] A transmission ring is provided on the drive spindle, and the transmission belt is provided on the transmission ring, forming a limiting structure for the transmission belt.

[0021] In some embodiments, the striking power storage mechanism includes:

[0022] The first rotating rod has its end connected to the transmission belt via a transmission ring;

[0023] The first steering gear is mounted on the first rotating rod;

[0024] The second steering gear meshes with the first steering gear.

[0025] The mounting bracket is fixed to the housing of the tester and supports the first and second steering gears via bearings.

[0026] The second rotating rod is located at the central shaft of the second steering gear;

[0027] A half-gear is mounted on the second rotating rod;

[0028] The rack meshes with the half gear;

[0029] The energy storage base is fixedly installed on the upper side of the rack;

[0030] The energy storage rod is sleeved inside the energy storage base and is designed as an integral part of the energy storage base;

[0031] A stabilizing frame is mounted on the upper side of the energy storage base;

[0032] A limiting seat is connected to one end of the lower side of the stabilizer;

[0033] A spring is provided between the limiting seat and the energy storage seat, so that the energy storage seat and the limiting seat form an elastic telescopic structure through the spring;

[0034] Side extension plates are installed on both sides of the accumulator base;

[0035] A pulley is mounted on the side extension plate;

[0036] A limiting track is nested and connected to the side extension piece, and a limiting groove is pre-set inside;

[0037] The pulley is slidably connected to the limiting rail, and the energy storage seat forms a nested sliding structure with the side extension plate, the pulley and the limiting rail.

[0038] In some embodiments, the tapping limiting mechanism includes:

[0039] A limiting slide bar is fixedly installed on the housing of the testing instrument;

[0040] The slide block is nested and installed on the limiting slide rod;

[0041] The limiting plate is integrated with the slide block, and the limiting plate forms a nested sliding structure with the slide block and the limiting slide rod.

[0042] A limiting sleeve is installed on the limiting plate;

[0043] A striking hammer is disposed inside the limiting sleeve, and the striking hammer is connected to the limiting plate through the limiting sleeve to form a limiting sliding connection;

[0044] The positioning rod is installed at the end of the striking hammer that is close to the housing of the testing instrument;

[0045] The second magnetic sheet is distributed on the positioning rod;

[0046] The first magnetic sheet is installed on the striking hammer near the second magnetic sheet;

[0047] The first magnetic sheet and the second magnetic sheet are magnetically connected.

[0048] In some embodiments, the sound source collection mechanism includes:

[0049] Collection seat;

[0050] The mounting base is installed on the collection base;

[0051] The sound receiver is located on the collection base and has a horn-shaped structure.

[0052] A receiver is installed inside the receiver port;

[0053] The protective cover is mounted on the mounting base via a threaded connection structure.

[0054] In some embodiments, the driving mechanism includes:

[0055] The connecting rod is fixedly connected to the drive spindle;

[0056] A C-shaped ring is welded to the connecting rod;

[0057] A push rod is mounted on the connecting rod and is perpendicular to the connecting rod;

[0058] The push rod is used to push the slide block in the striking limiting mechanism to move along the limiting slide rod when the C-shaped ring rotates.

[0059] A detection method using a prefabricated shear wall sleeve grouting quality detection device includes the following steps:

[0060] S1: Charges the energy storage mechanism through the power port;

[0061] S2: Place the device in the grouting area of ​​the sleeve to be tested;

[0062] S3: Start the drive motor;

[0063] S4: The drive spindle drives the transmission belt to drive the two sets of striking energy storage mechanisms to move synchronously. The striking energy storage mechanism (6) cyclically impacts the striking limit mechanism, causing it to strike the detection surface.

[0064] S5: At the same time, the drive spindle drives the push mechanism to rotate, periodically pushing the striking limit mechanism to move and change the position to be struck;

[0065] S6: The sound source collection mechanism collects the sound waves generated by the impact;

[0066] S7: Analyze the acoustic signal and display the grouting quality test results;

[0067] S8: After the test is completed, turn off the drive motor.

[0068] Compared with the prior art, the present invention has the following beneficial effects:

[0069] Achieve high-precision synchronous tapping detection:

[0070] Two sets of impact-accumulating mechanisms, symmetrically distributed around the center of the drive spindle, work in sync with a transmission belt to ensure that the hammers on both sides impact the detection surface simultaneously and with equal force. The accumulating rod generates a constant impact force after the spring-loaded force is released. Combined with the precise guidance of the limiting rail and pulleys, this significantly reduces the force deviation and timing error of single-point manual striking. The synchronously generated impact sound signals are time-domain aligned, significantly improving the signal-to-noise ratio of the acoustic analysis and the consistency of the detection results.

[0071] Resolving the conflict between equipment weight and portability:

[0072] The unique hollow counterweight compartment design allows for flexible filling and removal of counterweight materials (such as standard counterweight blocks) on-site. Filling the compartment with counterweights during testing significantly increases the stability of the tester's base, preventing displacement caused by impacts and vibrations. Leaving the compartment empty during transport significantly reduces the overall weight, and the rotating handle enables easy one-handed transport, fundamentally overcoming the pain points of traditional testing equipment that require a heavy base during operation and are cumbersome and inconvenient to move.

[0073] Achieve automatic and orderly switching of detection points:

[0074] The push mechanism, synchronously driven by the main drive shaft, drives the push rod via a C-ring. Each rotation pushes the slide block one unit distance along the limit slide rod, causing the entire row of hammers to move in a stepwise manner. This design automatically removes the hammers that have finished striking from the working position and precisely positions the reset hammers at the impact point, avoiding single-point fatigue damage and ensuring that each strike is performed in an unaffected area, thus improving continuous testing efficiency and data reliability.

[0075] Ensure the hammer resets quickly and remains in stable standby mode:

[0076] The striking hammer is magnetically fixed to the second magnetic plate on the positioning rod via a first magnetic plate, maintaining a stable position in the non-impact state. After the impact, the magnetic force can quickly pull the hammer back to its original position, avoiding displacement caused by inertia or vibration. The sliding fit between the limiting sleeve and the limiting plate further constrains the movement trajectory, ensuring that the accumulator rod always accurately strikes the hammer to be triggered.

[0077] Improving acoustic signal acquisition quality and equipment durability:

[0078] The horn-shaped sound receiver effectively focuses impact sound waves, enhancing the sensitivity of the receiver. The threaded protective cover can completely seal the sound receiver when not in use, effectively preventing dust and moisture, and avoiding signal attenuation caused by foreign objects blocking the sound path. This design significantly extends the lifespan of acoustic components, ensuring the clarity and consistency of the sound source signal during long-term testing. Attached Figure Description

[0079] Figure 1 This is a first-view schematic diagram of the overall structure of the present invention;

[0080] Figure 2 This is a second-view schematic diagram of the overall structure of the present invention;

[0081] Figure 3 This is a front view of the lower half of the overall structure of the present invention;

[0082] Figure 4 This is a schematic diagram of the housing structure of the test instrument of the present invention;

[0083] Figure 5 This is a schematic diagram of the sound source collection mechanism of the present invention;

[0084] Figure 6 This is a first-view schematic diagram of the drive motor drive structure of the present invention;

[0085] Figure 7 This is a second-view structural schematic diagram of the drive motor drive structure of the present invention;

[0086] Figure 8 This is a schematic diagram of the actuator structure of the present invention;

[0087] Figure 9 This is a schematic diagram of the striking and energy storage mechanism of the present invention;

[0088] Figure 10 This is a schematic diagram of the half-gear structure of the present invention;

[0089] Figure 11 This is a schematic diagram of the energy storage rod structure of the present invention;

[0090] Figure 12 This is a schematic diagram of the side extension sheet structure of the present invention;

[0091] Figure 13 This is a schematic diagram of the striking limiting mechanism of the present invention;

[0092] Figure 14 This is a schematic diagram of the hammer mounting structure of the present invention.

[0093] The diagram is labeled as follows: 1. Tester housing; 101. Handle; 102. Groove; 103. Counterweight compartment; 104. Processing control and operation module; 105. Display screen; 106. Power port;

[0094] 2. Drive motor; 3. Drive spindle; 4. Pushing mechanism; 401. Connecting rod; 402. C-ring; 403. Push rod; 5. Transmission belt;

[0095] 6. Striking power storage mechanism; 601. First rotating rod; 602. First steering gear; 603. Second steering gear; 604. Mounting bracket; 605. Second rotating rod; 606. Half gear; 607. Rack; 608. Power storage base; 609. Power storage rod; 610. Stabilizer; 611. Limiting seat; 612. Spring; 613. Side extension plate; 614. Pulley; 615. Limiting rail; 616. Limiting groove;

[0096] 7. Striking limiting mechanism; 701. Limiting slide bar; 702. Slide block; 703. Limiting plate; 704. Limiting sleeve; 705. Striking hammer; 706. First magnetic piece; 707. Positioning rod; 708. Second magnetic piece;

[0097] 8. Sound source collection mechanism; 801. Collection base; 802. Mounting base; 803. Receiver earpiece; 804. Receiver port; 805. Protective cover. Detailed Implementation

[0098] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0099] Reference Figures 1 to 14This invention provides a technical solution: a prefabricated shear wall sleeve grouting quality testing device, including a testing instrument housing 1. The testing instrument housing 1 is provided with a handle 101 rotatably connected to it. Rotating the handle 101 lifts the testing instrument housing 1 for transfer. A hollow counterweight chamber 103 is provided at the lower end of the testing instrument housing 1. The counterweight chamber 103 can be flexibly filled with various engineering waste materials according to site conditions, ensuring flexible movement of the testing instrument housing 1 during transport when the counterweight chamber 103 is empty. When the testing instrument housing 1 is in use, various materials suitable for counterweighting can be flexibly placed in the counterweight chamber 103 to increase the weight of the testing instrument housing 1 and improve its stability during testing. The upper end of the testing instrument housing 1 is provided with an inclined operating surface, on which a processing control and operation module 104 and a display screen 105 are distributed. The testing instrument housing 1 is provided with an energy storage mechanism, and a power port 106, serving as a power charging port, is pre-set on its side for connecting to it. Energy is stored in the internal energy storage mechanism through the power port 106 (e.g., ...). Figure 1-4 (As shown).

[0100] Inside the housing 1 of the testing instrument, a drive motor 2 is installed. A drive spindle 3 is mounted on the output end of the drive motor 2. Two transmission belts 5 are mounted on the drive spindle 3, arranged in a staggered pattern. A transmission ring is mounted on the drive spindle 3, forming a limiting structure with the transmission belts 5. Rotation of the drive spindle 3 drives the transmission belts 5 to move (e.g., ...). Figure 7 and Figure 8 (As shown).

[0101] Both transmission belts 5 are connected to two different sets of striking energy storage mechanisms 6. The two sets of striking energy storage mechanisms 6 are symmetrically distributed around the center of the drive shaft 3. The striking energy storage mechanism 6 includes a first rotating rod 601, a first steering gear 602, a second steering gear 603, a mounting bracket 604, a second rotating rod 605, a half gear 606, a rack 607, an energy storage seat 608, an energy storage rod 609, a stabilizer 610, a limit seat 611, a spring 612, a side extension plate 613, a pulley 614, a limit track 615, and a limit groove 616. The end of the first rotating rod 601 is provided with a transmission ring connected to the transmission belt 5. A first rotating rod is mounted on the first rotating rod 601. A first steering gear 602 has a second steering gear 603 connected to its side. Both the second steering gear 603 and the first steering gear 602 are connected to mounting brackets 604 fixed to the tester housing 1. The second steering gear 603 and the first steering gear 602 are meshed, and this meshing provides steering drive. The connections between the second steering gear 603, the first steering gear 602, and the mounting brackets 604 are all made of bearings. The bearings maintain the stability of both gears during rotation (e.g., ...). Figure 9 and Figure 10 (As shown).

[0102] A second rotating rod 605 is provided at the central shaft of the second steering gear 603. A half gear 606 is mounted on the second rotating rod 605. A rack 607 meshes with the half gear 606 at its upper end. A accumulator seat 608 is fixedly mounted on the upper end of the rack 607. An accumulator rod 609 is sleeved inside the accumulator seat 608. A stabilizer 610 is provided on the upper side of the accumulator seat 608. A limit seat 611 is connected to the lower side of the stabilizer 610. A spring 612 is provided between the limit seat 611 and the accumulator seat 608. The accumulator seat 608 and the accumulator rod 609 are designed as one piece. The accumulator seat 608 and the limit seat 611 form an elastic telescopic structure through the spring 612. The rack 607 on the accumulator seat 608 is driven by the half gear 606 to compress the spring 612, causing it to generate strong tension. At the instant that the half gear 606 disengages from the rack 607... When the spring 612 loses its compression limit, the resulting impact force is directly transmitted to the accumulator rod 609, generating an impact force. Side extension plates 613 are installed on both sides of the accumulator base 608. A limiting rail 615 is nested and connected to each side extension plate 613. The limiting rail 615 limits the accumulator base 608 on which the side extension plates 613 are installed. A limiting groove 616 is pre-set within the limiting rail 615. A pulley 614 is installed on the side extension plate 613 at the corresponding position of the limiting groove 616. The pulley 614 and the limiting rail 615 are slidably connected. The accumulator base 608 forms a nested sliding structure with the side extension plates 613 and the limiting rail 615. The cooperation between the pulley 614 and the limiting rail 615 reduces friction, increases the impact force during impact, and ensures the consistency of the cyclic impact force, laying the foundation for the accuracy of the test results (e.g., Figure 11 and Figure 12 (As shown).

[0103] A pushing mechanism 4 is installed at the front end of the drive spindle 3. The pushing mechanism 4 includes a connecting rod 401, a C-ring 402, and a pushing rod 403. The connecting rod 401 is fixedly connected to the drive spindle 3, and a C-ring 402 is welded to the connecting rod 401. The connecting rod 401 and the pushing rod 403 are perpendicularly distributed. The pushing rod 403 is installed on the connecting rod 401. Through the cooperation of the C-ring 402 and the pushing rod 403, when the C-ring 402 rotates, the pushing rod 403, which is perpendicular to the connecting rod 401, will push a striking hammer 705 to move one unit after the C-ring 402 rotates one revolution, realizing the periodic and timed advancement of the striking hammer 705 (e.g., Figures 6-8 (As shown).

[0104] The tester housing 1 has two slots 102, and a striking limiting mechanism 7 is installed in each slot 102. The striking limiting mechanism 7 includes a limiting slide rod 701, a slide base 702, a limiting plate 703, a limiting sleeve 704, a striking hammer 705, a first magnetic piece 706, a positioning rod 707, and a second magnetic piece 708. The limiting slide rod 701 is fixedly installed on the tester housing 1. The slide base 702 is installed on the limiting slide rod 701, and the limiting plate 703 is integrally designed with the slide base 702. The limiting plate 703 and the limiting slide rod 701 form a nested sliding structure through the slide base 702. The limiting plate 703 is positioned by the slide base 702. The sliding of the sliding rod 701 is achieved by a limiting sleeve 704 installed on the limiting plate 703. A striking hammer 705 is housed within the limiting sleeve 704. The striking hammer 705 forms a limiting sliding connection with the limiting plate 703 via the limiting sleeve 704. After the C-ring 402 rotates once, the pushing rod 403 pushes one striking hammer 705 to move one unit, displacing the striking hammer 705 limited by the limiting sleeve 704 on the limiting plate 703. This moves the striking hammer 705, which has completed striking but not yet reset, forward one unit, ensuring that the subsequent fully reset striking hammer 705 can be subjected to the impact of the accumulator rod 609 for high-precision measurement (e.g., Figure 13 and Figure 14 As shown), a positioning rod 707 is installed at one end of the striking hammer 705 near the housing 1 of the testing instrument. Multiple second magnetic pieces 708 are distributed on the positioning rod 707. A first magnetic piece 706 is installed on the striking hammer 705 close to the second magnetic pieces 708. The first magnetic piece 706 and the second magnetic pieces 708 are magnetically connected. The magnetic attraction between the first magnetic piece 706 and the second magnetic piece 708 limits the striking hammer 705 to the limiting slide rod 701, facilitating continuous fixed-point monitoring (e.g., ...). Figure 14 (As shown).

[0105] Both sides of the two slots 102 are equipped with sound source collection mechanisms 8 (such as...). Figure 1 and Figure 3 As shown), the sound source collection mechanism 8 includes a collection base 801, a mounting base 802, a receiver 803, a receiver port 804, and a protective cover 805. The collection base 801 is equipped with the mounting base 802 and the receiver port 804. The receiver port 804 has a horn-shaped structure for easy sound reception. The receiver 803 is installed inside the receiver port 804. The protective cover 805 is connected to the mounting base 802, and the protective cover 805 and the mounting base 802 are connected by a threaded connection. The threaded connection of the protective cover 805 to the mounting base 802 protects the receiver 803. During use, the protective cover 805 is opened to detect sound reception through the receiver 803. When not in use, the protective cover 805 is screwed on to prevent dust accumulation on the receiver 803, thus maintaining the sound pickup accuracy of the receiver 803 over time (e.g., ...). Figure 5 (As shown).

[0106] A detection method using a prefabricated shear wall sleeve grouting quality detection device includes the following steps:

[0107] S1: Charge the energy storage mechanism through the power port 106 and add counterweights through the counterweight compartment 103;

[0108] S2: Place the device in the grouting area of ​​the sleeve to be tested;

[0109] S3: Start drive motor 2;

[0110] S4: The drive spindle 3 drives the transmission belt 5 to drive the two sets of striking power storage mechanisms 6 to move synchronously. The power storage rod 609 cyclically impacts the striking hammer 705, causing it to strike the detection surface.

[0111] S5: At the same time, the drive spindle 3 drives the push mechanism 4 to rotate, and the push rod 403 periodically pushes the slide 702 of the striking limit mechanism 7 to move, changing the position of the striking hammer 705 to be struck.

[0112] S6: The sound source collection mechanism 8 collects the sound waves generated by the impact and transmits them to the processing control and operation module 104;

[0113] S7: Analyze the acoustic signal and display the grouting quality test results on the display screen 105;

[0114] S8: After the test is completed, turn off drive motor 2.

[0115] Working principle: Before use, the power storage mechanism inside the tester housing 1 is charged through the power port 106. When in use, hold the handle 101 and rotate it to a suitable angle, then lift the tester housing 1 and move it to the detection position. Then, according to the site, take a certain amount of engineering waste with a certain weight and fill it into the counterweight chamber 103 to increase the overall counterweight of the tester housing 1. The operation processing control and operation module 104 and the display screen 105 operate the equipment.

[0116] The drive motor 2 drives the spindle 3 to rotate, and the two sets of transmission belts 5 on the drive spindle 3 and the push mechanism 4 run simultaneously.

[0117] Two sets of transmission belts 5 on the drive spindle 3 drive two sets of striking and accumulating mechanisms 6 that are axially symmetrically distributed around the center of the drive spindle 3. The first rotating rod 601 rotates, driving the first steering gear 602 to drive the second steering gear 603 to rotate. At the same time, the half gear 606 on the second rotating rod 605, which is coaxial with the second steering gear 603, rotates synchronously. When rotating, the gear part of the half gear 606 meshes with the rack 607, pushing the rack 607 towards the limiting seat 611. At the same time, the spring 612 is compressed and accumulates force to generate strong tension. At the instant that the half gear 606 disengages from the rack 607, the spring 612... 2 will lose its compression limit, and the resulting impact force will be directly transmitted to the accumulator rod 609, generating an impact force. At the same time, the side extension piece 613 is limited within the limiting track 615, causing the accumulator rod 609 to impact out along the track. The pulley 614 contacts the limiting track 615 to reduce the resistance when the impact hammer is released. As the accumulator rod 609 is released, the hammer 705, which is limited by the first magnetic piece 706 on the second magnetic piece 708, is pushed out simultaneously by the force. The limiting sleeve 704 provides a limit to ensure the connection between the accumulator rod 609 and the hammer 705. The hammer 705 impacts the contact wall surface, generating a knocking sound.

[0118] Simultaneously, the connecting rod 401 is driven to rotate synchronously. When the connecting rod 401 rotates, the C-shaped ring 402 and the push rod 403 on it will also rotate synchronously. When the push rod 403 pushes the hammer 705, which has completed the impact, to move one unit distance, the hammer 705, which has not impacted but has been reset, is moved in front of the recharge rod 609 to recharge. When the half gear 606 disengages from the rack 607, the test can be performed again.

[0119] When testing sound reception, the protective cover 805 is opened, and the receiver 803, together with the receiver port 804, collects the sound source of the knocking. After collection, the processing control and operation module 104 and the display screen 105 will display the basic information. The tester can make a judgment based on the actual data. When the receiver 803 is not in use, the protective cover 805 is screwed back onto the collection base 801 to protect the receiver 803.

[0120] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A prefabricated shear wall sleeve grouting quality testing device, characterized in that, include: The tester housing (1) has two slots (102) on it; The drive mechanism, installed inside the housing (1) of the tester, includes a drive motor (2) and a drive spindle (3) driven by it; Two sets of transmission belts (5) are mounted on the drive spindle (3); Two sets of striking energy storage mechanisms (6) are connected to the two sets of transmission belts (5) respectively, and are symmetrically distributed about the center of the drive shaft (3). A striking limit mechanism (7) is provided inside the slot (102); The striking limiting mechanism (7) includes: A limiting slide bar (701) is fixedly installed on the housing (1) of the tester; A slide block (702) is nested and installed on the limiting slide bar (701); The limiting plate (703) is integrated with the slide block (702), and the limiting plate (703) forms a nested sliding structure with the limiting slide rod (701) through the slide block (702); A limiting sleeve (704) is installed on the limiting plate (703); A striking hammer (705) is disposed inside the limiting sleeve (704), and the striking hammer (705) is connected to the limiting plate (703) through the limiting sleeve (704) to form a limiting sliding connection; The positioning rod (707) is installed at one end of the striking hammer (705) that is close to the tester housing (1); The second magnetic sheet (708) is distributed on the positioning rod (707); The first magnetic piece (706) is installed on the striking hammer (705) near the second magnetic piece (708); The first magnetic sheet (706) and the second magnetic sheet (708) are magnetically connected. The pushing mechanism (4) is fixedly installed at the front end of the drive spindle (3) and is used to change the striking position of the striking limit mechanism (7); The propulsion mechanism (4) includes: The connecting rod (401) is fixedly connected to the drive spindle (3); A C-ring (402) is welded to the connecting rod (401); A push rod (403) is mounted on the connecting rod (401) and is perpendicular to the connecting rod (401); The push rod (403) is used to push the slide block (702) in the striking limiting mechanism (7) to move along the limiting slide rod (701) when the C-ring (402) rotates; A sound source collection mechanism (8) is provided on the upper and lower sides of each slot (102); The drive spindle (3) drives the two sets of striking energy storage mechanisms (6) to move synchronously through the two sets of transmission belts (5). The impact force generated by the striking energy storage mechanism (6) acts on the striking limit mechanism (7) to strike the detection surface. The sound source collection mechanism (8) is used to collect the sound waves generated by the striking.

2. The prefabricated shear wall sleeve grouting quality testing device according to claim 1, characterized in that, The tester housing (1) also includes: The handle (101) is rotatably connected to the tester housing (1); The counterweight compartment (103) is located at the lower end of the tester housing (1) and has a hollow structure. An inclined operating surface is set on the upper end of the tester housing (1), on which processing control and operation module (104) and display screen (105) are distributed; The energy storage mechanism is built into the housing (1) of the tester; A power port (106) is pre-installed on the side of the tester housing (1) and is connected thereto as the charging port of the energy storage mechanism.

3. The prefabricated shear wall sleeve grouting quality testing device according to claim 1, characterized in that: The transmission belt (5) is distributed in an alternating pattern on the drive shaft (3); A transmission ring is provided on the drive spindle (3), and the transmission belt (5) is provided on the transmission ring, forming a limiting structure for the transmission belt (5).

4. The prefabricated shear wall sleeve grouting quality testing device according to claim 1, characterized in that, The striking power storage mechanism (6) includes: The first rotating rod (601) has its end connected to the transmission belt (5) via a transmission ring; The first steering gear (602) is mounted on the first rotating rod (601); The second steering gear (603) meshes with the first steering gear (602); The mounting bracket (604) is fixed on the tester housing (1) and supports the first steering gear (602) and the second steering gear (603) through bearings; The second rotating rod (605) is located at the central shaft of the second steering gear (603); A half gear (606) is mounted on the second rotating rod (605); The rack (607) meshes with the half gear (606); A power storage base (608) is fixedly installed on the upper side of the rack (607); The power storage rod (609) is sleeved inside the power storage base (608) and is designed as an integral part of the power storage base (608); A stabilizer (610) is disposed on the upper side of the energy storage base (608); A limiting seat (611) is connected to one end of the lower side of the stabilizer (610); A spring (612) is disposed between the limiting seat (611) and the energy storage seat (608), so that the energy storage seat (608) and the limiting seat (611) form an elastic telescopic structure through the spring (612); Side extension plates (613) are installed on both sides of the power storage base (608); A pulley (614) is mounted on the side extension piece (613); The limiting track (615) is nested and connected with the side extension piece (613), and a limiting groove (616) is preset inside; The pulley (614) is slidably connected to the limiting rail (615), and the power storage seat (608) forms a nested sliding structure through the side extension plate (613), the pulley (614) and the limiting rail (615).

5. The prefabricated shear wall sleeve grouting quality testing device according to claim 1, characterized in that, The sound source collection mechanism (8) includes: Collection seat (801); Mounting base (802) is provided on collection base (801); The sound receiving port (804) is located on the collecting base (801) and has a horn-shaped structure; A receiver (803) is installed inside the receiver port (804); The protective cover (805) is mounted on the mounting base (802) via a threaded connection structure.

6. A testing method using the prefabricated shear wall sleeve grouting quality testing device according to any one of claims 2-5, characterized in that, Includes the following steps: S1: Charge the energy storage mechanism through the power port (106); S2: Place the prefabricated shear wall sleeve grouting quality testing device in the sleeve grouting area to be tested; S3: Start the drive motor (2); S4: Drive the main shaft (3) to drive the transmission belt (5) to drive the two sets of striking energy storage mechanisms (6) to move synchronously. The striking energy storage mechanism (6) cyclically impacts the striking limit mechanism (7) so that it strikes the detection surface. S5: At the same time, the drive spindle (3) drives the push mechanism (4) to rotate, periodically pushing the knocking limit mechanism (7) to move and change the position to be knocked; S6: Sound source collection mechanism (8) collects the sound waves generated by the impact; S7: Analyze the acoustic signal and display the grouting quality test results; S8: After the test is completed, turn off the drive motor (2).

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