A construction site quality detection device

Abstract

The application relates to the technical field of building construction detection equipment, and particularly discloses a building construction site quality detection equipment, which comprises a connecting seat, adjustable supporting legs which are distributed in a circumferential interval and are hingedly connected to the connecting seat, a hinged seat which is spherically connected to the middle part of the connecting seat, a ball sliding sleeve which is fixedly connected to the middle part of the hinged seat, and a detection rod which is slidingly connected in the ball sliding sleeve; a limiting block one which is fixedly connected to the detection rod, a cross peening hammer which is sleeved on the middle part of the detection rod, and the diameter of the through hole in the middle part of the cross peening hammer is larger than the diameter of the detection rod; a counterweight which is fixedly connected to the lower side of the hinged seat, a pressing ring which is sleeved on the upper side of the hinged seat, and the hinged seat is extruded by the pressing ring. The gravity of the counterweight makes the hinged seat drive the detection rod to automatically swing to be parallel to the gravity direction, the tedious error of manual adjustment is avoided, the detection rod is ensured to be vertically inserted into the foundation, the friction between the cross peening hammer and the rod body is reduced, and the accuracy of the foundation bearing capacity detection is improved.

Description

Technical Field

[0001] This invention relates to the field of construction inspection equipment technology, and more specifically, to a construction site quality inspection device. Background Technology

[0002] In building construction, the strength of the foundation is crucial for ensuring the stability and safety of the building. To accurately assess the bearing capacity of the foundation, on-site testing is usually required. Traditional dynamic penetration tests typically consist of a probe, a hammer, and an operating handle. During testing, the operator manually raises the hammer to a predetermined height and then releases it, allowing it to fall freely and impact the probe, thus transferring the impact force to the foundation. The strength of the foundation is assessed by recording the depth of penetration or the number of hammer blows required.

[0003] While existing testing equipment is equipped with supports for adjusting the testing rod, the adjustment process is extremely cumbersome, typically requiring multiple manual calibrations with limited accuracy, making it difficult to ensure the testing rod is perfectly parallel to the direction of gravity. This deviation not only causes lateral shifts in the insertion angle of the testing rod but also leads to friction between the hammer and the rod during descent, increasing resistance and directly affecting the accuracy of penetration depth measurements. Simultaneously, friction accelerates rod wear, reducing equipment lifespan and ultimately distorting the test values, failing to accurately reflect foundation strength. Furthermore, human factors significantly influence the hammer's lifting height during testing. Due to differences in operator strength and experience, the lifting height is inconsistent each time, resulting in poor repeatability and large data dispersion, making it difficult to accurately assess foundation strength. In addition, improper operation during lifting, such as slippage or misjudgment, may cause premature release of the hammer, resulting in insufficient impact energy, shallow penetration depth, and invalid test data, failing to provide reliable evidence for engineering projects.

[0004] In view of this, we propose a quality testing device for construction sites. Summary of the Invention

[0005] (a) Technical problems to be solved To address the problems existing in the prior art, the present invention provides a quality testing device for construction sites, thereby solving the technical problems mentioned in the background art, such as the cumbersome adjustment of the testing rod and the low accuracy.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a construction site quality inspection device, comprising: a connecting seat, wherein the connecting seat is hinged with adjustable legs distributed circumferentially, a hinge seat is ball-jointed in the middle of the connecting seat, a ball bearing sleeve is fixedly connected in the middle of the hinge seat, and a detection rod is slidably connected inside the ball bearing sleeve. A limiting block is fixed to the detection rod, and a through-hole hammer is sleeved in the middle of the detection rod. The diameter of the through-hole hammer in the middle is larger than the diameter of the detection rod. A counterweight is fixed to the lower side of the hinge seat, and a clamping ring is sleeved on the upper side of the hinge seat, which presses against the hinge seat. A compression limiting mechanism is provided on the connecting seat, which compresses the clamping ring and limits the detection rod; A fall arrestor is provided on the connecting seat, which limits the movement of the hammer after it is released from the hand.

[0007] Furthermore, the compression limiting mechanism includes: Multiple fasteners are provided, and each fastener is fixedly connected to the connecting seat. Each fastener is slidably connected to a pressing rod, which passes through the clamping ring and is slidably connected to it. The pressing rod limits the movement of the clamping ring. A handle is hinged to the fixing member, and a hinge is hinged between the handle and the pressing rod.

[0008] Furthermore, the lower side of the detection rod is fixedly connected to a limiting block two, the counterweight is slidably connected to a limiting component, the limiting component limits the limiting block two, and the limiting component is provided with an inclined through groove.

[0009] Furthermore, the hinge seat is slidably connected to a connecting rod, and the connecting rod is fixedly connected to a crossbar, which slides within the inclined through groove of the limiting member.

[0010] Furthermore, the fall protection mechanism includes: Two limiting posts are provided, and the two limiting posts are threadedly connected to the hinge seat. One of the limiting posts abuts against the connecting rod, and the limiting post is fixedly connected with spaced fixing blocks. Two guide members are provided, and the two guide members are fixedly connected to the through hammer. A sliding block is slidably connected inside the guide member, and a crossbar is fixedly connected to the sliding block. There are two sliding members, which are slidably connected to the hammer. Each sliding member has an inclined through groove, and the second crossbar slides within the inclined through groove of the sliding member.

[0011] Furthermore, the sliding member is hinged to a swing member, the sliding member limits the swing member, the swing member limits the fixed block on the same side, and a torsion spring is fixed between the swing member and the sliding member.

[0012] Furthermore, the sliding block is fixedly connected to a handle, and the guide is fixedly connected to a damping rod. The telescopic end of the damping rod is fixedly connected to the sliding block, and a spring is fixedly connected between the outer shell of the damping rod and the sliding block.

[0013] Furthermore, it also includes a limiting mechanism, which is disposed at the top of the limiting post. The limiting mechanism slowly unlocks the hammer. The limiting mechanism includes: Damping rod two is fixedly connected to the limiting post, and the telescopic end of the damping rod two is fixedly connected to a guide shell; A limiting rod is slidably connected to the guide shell, and a second spring is fixed between the guide shell and the limiting rod. The limiting rod has a through hole.

[0014] Furthermore, a limiting hook is fixedly connected to the upper side of the hammer, the limiting hook passes through the through hole of the limiting rod, and an extrusion member is fixedly connected to the housing of the second damping rod, the extrusion member extruding the limiting rod.

[0015] Furthermore, the upper part of the limiting hook is provided with an inclined surface, and the limiting hook limits the guide shell.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides a quality testing device for construction sites, which has the following beneficial effects: 1. This invention utilizes the gravity of the counterweight to cause the hinged seat to automatically swing the detection rod to be parallel to the direction of gravity, avoiding the tedious errors of manual adjustment, ensuring that the detection rod is inserted vertically into the foundation, reducing friction between the hammer and the rod, and improving the accuracy of foundation bearing capacity testing.

[0017] 2. This invention uses a handle to drive the extrusion rod to press down the clamping ring, quickly locking the hinge seat and releasing the detection rod limit, realizing one-click fixing and release, simplifying the traditional cumbersome calibration steps and improving on-site testing efficiency.

[0018] 3. If the hammer accidentally slips out of your hand during the lifting process, the damping rod will slow down the reset speed and work with the swinging component and the fixed block to immediately limit the hammer's movement, preventing it from falling prematurely and ensuring sufficient impact energy for each impact to avoid invalid test data.

[0019] 4. This invention locks the hammer at a specified height by using a limit hook and a limit rod, and releases it slowly under the control of a damping rod, ensuring that the falling height is the same and the central axis coincides each time, eliminating interference from human factors, and improving the repeatability of detection and the reliability of data. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a construction site quality testing device according to the present invention; Figure 2 This is a schematic diagram of the detection rod and the through-hole hammer in this invention; Figure 3 This is a schematic diagram of the structure of the hinge seat and the clamping ring in this invention; Figure 4 This is a cross-sectional view of the connecting seat, hinge seat, and clamping ring in this invention. Figure 5 This is a schematic diagram of the structure of the limiting block and the through-hole hammer in this invention; Figure 6 This is a schematic diagram of the structure of the limiting member and the crossbar in this invention; Figure 7 This is a cross-sectional view of the hinge seat in this invention. Figure 8 This is a cross-sectional view of the hammer in this invention; Figure 9 This is a schematic diagram of the sliding component in this invention; Figure 10 This is a schematic diagram of the structure of the sliding member and the oscillating member in this invention; Figure 11 This is a top view of the hammer and guide shell in this invention. Figure 12 This is a cross-sectional view of the guide shell in this invention.

[0021] In the diagram: 1. Connecting seat; 2. Adjustable support leg; 3. Hinge seat; 4. Ball bearing sleeve; 5. Detection rod; 6. Limiting block one; 7. Through-hole hammer; 8. Counterweight; 9. Pressure ring; 10. Fixing component; 11. Extrusion rod; 12. Handle; 13. Hinge component; 14. Limiting block two; 15. Limiting component; 16. Elastic component; 17. Connecting rod; 18. Crossbar one; 19. Limiting post; 20. Fixing block; 21. Guide component; 22. Sliding block; 23. Crossbar two; 24. Sliding component; 25. Swinging component; 26. Torsion spring; 27. Grip; 28. Damping rod one; 29. ​​Spring one; 30. Damping rod two; 31. Guide shell; 32. Limiting rod; 33. Spring two; 34. Limiting hook; 35. Extrusion component. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] This invention provides a quality testing device for construction sites, such as... Figures 1-5 As shown, it includes: connecting seat 1, adjustable support leg 2, hinge seat 3, ball bearing sleeve 4, detection rod 5, limit block 1 6, through hammer 7, counterweight 8, clamping ring 9, compression limit mechanism and anti-fall mechanism. A connecting seat 1 is hinged to four adjustable support legs 2 arranged circumferentially. A hinge seat 3 is ball-jointed in the middle of the connecting seat 1. A ball bearing sleeve 4 is fixed in the middle of the hinge seat 3. A detection rod 5 is slidably connected inside the ball bearing sleeve 4. A limiting block 6 is fixed to the detection rod 5. A through hammer 7 is sleeved in the middle of the detection rod 5. The diameter of the through hole in the middle of the through hammer 7 is larger than the diameter of the detection rod 5. A counterweight 8 is fixed to the lower side of the hinge seat 3. A clamping ring 9 is sleeved on the upper side of the hinge seat 3. The clamping ring 9 presses against the hinge seat 3. A clamping and limiting mechanism is set in the connecting seat 1. The clamping and limiting mechanism clamps the clamping ring 9 and limits the detection rod 5. A fall prevention mechanism is set in the connecting seat 1. The fall prevention mechanism limits the through hammer 7 after it is released.

[0026] In use, the four adjustable legs 2 are initially adjusted, and the connecting seat 1 is initially adjusted. Under the gravity of the counterweight 8, the hinge seat 3 drives the detection rod 5 to swing through the ball bearing sleeve 4, so that the central axis of the detection rod 5 is parallel to the direction of gravity. Then, through the compression limiting mechanism, the pressing ring 9 is pressed downward, and the pressing ring 9 compresses and fixes the hinge seat 3, and releases the fixation of the detection rod 5. The detection rod 5 moves downward along the ball bearing sleeve 4, so that the lower end of the detection rod 5 contacts the foundation. Then, the mandrel 7 is lifted upward, and then the mandrel 7 is released from the designated position. The mandrel 7 falls freely and impacts the limiting block 6. After being impacted, the detection rod 5 is inserted into the foundation. The depth of the detection rod 5 into the foundation is measured according to the specified number of impacts, thereby completing the foundation bearing capacity test.

[0027] And with the help of the anti-fall mechanism, it prevents the hammer 7 from slipping out of your hand when it is lifted upwards, which would cause the hammer 7 to fall before reaching the designated height, resulting in a deviation in the test of the foundation bearing capacity.

[0028] like Figures 4-6 As shown, the extrusion limiting mechanism includes: a fixing member 10, an extrusion rod 11, a handle 12, a hinge member 13, a limiting block 14, a limiting member 15, an elastic member 16, a connecting rod 17, and a crossbar 18. Multiple fasteners 10 are provided, and all fasteners 10 are fixedly connected to the connecting seat 1. The fasteners 10 are slidably connected to the pressing rod 11, which passes through the pressing ring 9 and is slidably connected to it. The pressing rod 11 limits the pressing ring 9. The handle 12 is hinged to the fasteners 10, and a hinge 13 is hinged between the handle 12 and the pressing rod 11. The lower side of the detection rod 5 is fixedly connected to the limiting block 2 14, and the counterweight 8 is slidably connected to the limiting component 15. The limiting component 15 limits the limiting block 2 14 and is provided with an inclined through groove. The hinge seat 3 is slidably connected to the connecting rod 17, and the connecting rod 17 is fixedly connected to the crossbar 18. The crossbar 18 slides within the inclined through groove of the limiting component 15.

[0029] With the help of the counterweight 8, the hinge seat 3 is adjusted on the connecting seat 1. Then, the two handles 12 are rotated at the same time. The handles 12 drive the pressing rod 11 to slide down along the fixing member 10 through the hinge member 13. The upper part of the pressing rod 11 presses the clamping ring 9, and the clamping ring 9 presses the hinge seat 3, thereby fixing the hinge seat 3.

[0030] During the above process, the limiting component 15 limits the limiting block 14, and during the adjustment of the hinge seat 3, the hinge seat 3 drives the detection rod 5 to adjust synchronously through the ball bearing sleeve 4. Then, the connecting rod 17 is pressed down, and the connecting rod 17 drives the crossbar 18 to move downward. The crossbar 18 slides along the inclined through groove of the limiting component 15, so that the limiting component 15 slides along the counterweight 8. The limiting component 15 releases the limiting block 14, and then the detection rod 5 slides downward along the ball bearing sleeve 4 until the detection rod 5 abuts against the foundation. Under the action of the ball bearing sleeve 4, the friction force of the detection rod 5 moving downward is reduced, thereby improving the detection accuracy of the foundation bearing capacity.

[0031] like Figures 7-9 As shown, the fall protection mechanism includes: a limiting post 19, a fixing block 20, a guide 21, a sliding block 22, a crossbar 23, a sliding component 24, a swing component 25, a torsion spring 26, a handle 27, a damping rod 28, and a spring 29. Two limiting posts 19 are provided, and the two limiting posts 19 are threadedly connected to the hinge seat 3. One of the limiting posts 19 abuts against the connecting rod 17. The limiting post 19 is fixedly connected to the spaced fixing blocks 20. Two guide members 21 are provided, and the two guide members 21 are fixedly connected to the through hammer 7. A sliding block 22 is slidably connected inside the guide member 21, and a crossbar 23 is fixedly connected to the sliding block 22. Two sliding members 24 are provided, and the two sliding members 24 are slidably connected to the through hammer 7 respectively. The sliding member 24 is provided with an inclined through groove. 3. Slides within the inclined through groove of the sliding member 24; the sliding member 24 is hinged to a swing member 25, the sliding member 24 limits the swing member 25, the swing member 25 limits the fixed block 20 on the same side, and a torsion spring 26 is fixed between the swing member 25 and the sliding member 24; a handle 27 is fixed to the sliding block 22, a damping rod 28 is fixed to the guide member 21, the telescopic end of the damping rod 28 is fixed to the sliding block 22, and a spring 29 is fixed between the outer shell of the damping rod 28 and the sliding block 22.

[0032] After the clamping ring 9 presses and fixes the junction seat, the two limiting pins 19 are threaded to the hinge seat 3. During the screwing of the limiting pins 19, the limiting pins 19 press the connecting rod 17, causing the connecting rod 17 to slide down along the junction seat, so that the limiting member 15 releases the limiting block 14, thereby simplifying the operation of this equipment.

[0033] When it is necessary to lift the hammer 7, hold both handles 27 and lift the handles 27. The handles 27 drive the sliding block 22 to move along the guide 21. The sliding block 22 drives the telescopic end of the damping rod 28 to move upward. At the same time, the spring 29 is compressed. In this process, the sliding block 22 drives the crossbar 23 to move. The crossbar 23 slides along the inclined through groove of the sliding member 24, thereby causing the sliding member 24 to slide along the hammer 7. The sliding member 24 moves closer to the limiting post 19. When the spring 29 is compressed, the telescopic end of the damping rod 28 retracts. Continue to lift the handles 27. The crossbar 23 moves to the top of the inclined through groove of the sliding member 24. Then, the hammer 7 is driven to move upward through the crossbar 23 and the sliding member 24.

[0034] During the upward movement of the slider 24, the swinging member 25 contacts the fixed block 20, causing the swinging member 25 to swing along the slider 24. Under the torque of the torsion spring 26, the swinging member 25 is compressed by the fixed block 20 and returns to a horizontal state. If the hammer 7 is released prematurely due to improper operation during the lifting process, the reset speed of the slider 22 and the slider 24 is slowed down by the action of the damping rod 28. Under the gravity of the hammer 7, the swinging member 25 contacts the fixed block 20, and the fixed block 20 limits the swinging member 25 to prevent the hammer 7 from not being raised to the specified height, resulting in insufficient impact energy and affecting the validity of the test data. After limiting the hammer 7, the hammer 7 stops moving downward, giving the operator time to grip the handle 27 again and move the hammer 7 to the specified height.

[0035] like Figure 7 , Figures 10-12 As shown, it also includes a limiting mechanism, which is located at the top of the limiting post 19. The limiting mechanism slowly unlocks the through hammer 7. The limiting mechanism includes: a second damping rod 30, a guide shell 31, a limiting rod 32, a second spring 33, a limiting hook 34, and a pressing component 35. Damping rod 2 30 is fixed to limiting post 19, and guide shell 31 is fixed to the telescopic end of damping rod 2 30; limiting rod 32 is slidably connected to guide shell 31, and spring 2 33 is fixed between guide shell 31 and limiting rod 32; limiting rod 32 has a through hole; limiting hook 34 is fixed to the upper side of the hammer 7, and limiting hook 34 passes through the through hole of limiting rod 32; extrusion member 35 is fixed to the shell of damping rod 2 30, and extrusion member 35 extrudes limiting rod 32; the upper part of limiting hook 34 is provided with an inclined surface, and limiting hook 34 limits guide shell 31.

[0036] After the hammer 7 is raised, the hammer 7 causes the limiting hook 34 to move upward. The limiting hook 34 presses the guide shell 31 upward and inserts into the through hole of the limiting rod 32. Then, the hammer 7 is raised again, causing the guide shell 31 to move the telescopic end of the damping rod 30 upward. Then, the pressing part 35 loses its pressing with the limiting rod 32. Then, under the elastic force of the spring 33, the limiting rod 32 slides along the guide shell 31 and limits the limiting hook 34.

[0037] When the handle 27 is released, the limiting hook 34 engages with the limiting rod 32, thereby causing the hammer 7 to move slowly downward. Under the elastic force of the spring 29, the sliding block 22 and the sliding member 24 are slowly reset. During the reset of the sliding member 24, the extension end of the resistance link 2 moves downward, slowing down the downward reset speed of the hammer 7 until the pressing member 35 presses the limiting rod 32. The limiting rod 32 slides along the guide shell 31, the spring 2 33 is compressed, the limiting rod 32 slides and loses its limiting position with the limiting hook 34. Under the action of gravity at the core, the hammer 7 moves downward and impacts the limiting block 6.

[0038] After the limiting hook 34 and the limiting rod 32 are used to fix the mandrel 7, the central axis of the mandrel 7 is made to coincide with the central axis of the detection rod 5. This ensures that the mandrel 7 does not contact the detection rod 5 and the limiting post 19 when it moves downward, and that the mandrel 7 can reach the specified height each time, thereby improving the detection accuracy of the foundation.

[0039] Working principle of the invention: In use, the adjustable outrigger 2 is placed on the foundation and initially adjusted. Then, the handle 12 is turned upwards. The handle 12 drives the pressing rod 11 upwards through the hinge 13. The lower end of the pressing rod 11 drives the clamping ring 9 upwards. The clamping ring 9 releases the pressure on the hinge seat 3. Then, under the gravity of the counterweight 8, the hinge seat 3 rotates along the connecting seat 1. The hinge seat 3 drives the detection rod 5 to rotate synchronously, making the detection rod 5 parallel to the direction of gravity. Then, the handle 12 is turned downwards, causing the pressing rod 11 to press down on the clamping ring 9. The clamping ring 9 presses and fixes the hinge seat 3.

[0040] Then, the two limiting posts 19 are screwed into the hinge seat 3. One of the limiting posts 19 presses against the connecting rod 17. The connecting rod 17 drives the crossbar 18 to move downward. The crossbar 18 slides downward along the inclined through groove of the limiting member 15, causing the limiting member 15 to move along the counterweight 8. The elastic member 16 is stretched, and the limiting member 15 releases its restriction on the limiting block 14. Then, the detection rod 5 slides downward along the ball bearing sleeve 4 until the lower end of the detection rod 5 abuts against the foundation.

[0041] Then, lift the two handles 27, and slide the sliding block 22 upward along the guide 21. The sliding block 22 drives the crossbar 23 to slide along the inclined through groove of the sliding member 24. The sliding member 24 moves closer to the limiting post 19, the spring 29 is compressed, and the telescopic end of the damping rod 28 retracts. Continue to lift the handles 27, and the hammer 7 moves upward until the limiting hook 34 is inserted into the guide shell 31 and passes through the through hole of the limiting rod 32. The hammer 7 drives the guide shell 31 to move upward. Under the elastic force of the spring 33, the limiting rod 32 slides along the guide shell 31, so that the limiting rod 32 limits the limiting hook 34. When the limiting hook 34 is fixed and limited, the central axis of the hammer 7 coincides with the central axis of the detection rod 5. When the hammer 7 falls vertically, it does not contact the detection rod 5.

[0042] If an operational error occurs during the upward movement of the hammer 7, the damping rod 28 slows down the reset speed of the sliding member 24 and the sliding block 22. The swing member 25 cooperates with the fixed block 20 to limit the hammer 7, providing the operator with reaction time and preventing the hammer 7 from being released before reaching the specified height, which would result in insufficient impact energy and affect the test data.

[0043] After the hammer 7 moves to the designated height, the handle 27 is released. Under the action of spring 29 and damping rod 28, the sliding block 22 and sliding member 24 are reset. During the above process, under the gravity of the hammer 7 and the action of damping rod 30, the hammer 7 drives the guide shell 31 to move slowly downward. When the guide shell 31 moves downward, the pressing member 35 presses the limiting rod 32, and the limiting rod 32 slides along the guide shell 31. Spring 33 is compressed until the limiting rod 32 and the limiting hook 34 lose their limit. Then the hammer 7 falls downward and impacts the limiting block 6, causing the detection rod 5 to be inserted into the foundation. Through a specified number of impacts, the insertion depth of the detection rod 5 is measured, thereby measuring the bearing capacity of the foundation.

[0044] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. These will not be elaborated here. For all fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A quality testing device for construction sites, characterized in that, Includes: a connecting seat (1), the connecting seat (1) is hinged with adjustable legs (2) distributed circumferentially, the connecting seat (1) is ball-jointed with a hinge seat (3) in the middle, the hinge seat (3) is fixedly connected with a ball sleeve (4) in the middle, and a detection rod (5) is slidably connected inside the ball sleeve (4). Limiting block 1 (6) is fixed to the detection rod (5). A through hammer (7) is sleeved in the middle of the detection rod (5). The diameter of the through hole in the middle of the through hammer (7) is larger than the diameter of the detection rod (5). A counterweight (8) is fixed to the lower side of the hinge seat (3), and a clamping ring (9) is sleeved on the upper side of the hinge seat (3). The clamping ring (9) presses against the hinge seat (3). A compression limiting mechanism is provided on the connecting seat (1). The compression limiting mechanism compresses the clamping ring (9) and limits the detection rod (5). A fall protection mechanism is provided on the connecting seat (1), which limits the movement of the hammer (7) after it is released from the hand.

2. The construction site quality testing equipment according to claim 1, characterized in that, The compression limiting mechanism includes: The fastener (10) is provided in multiple ways. All of the fasteners (10) are fixed to the connecting seat (1). The fastener (10) is slidably connected to the pressing rod (11). The pressing rod (11) passes through the pressing ring (9) and the two are slidably connected. The pressing rod (11) limits the pressing ring (9). The handle (12) is hinged to the fixing member (10), and a hinge member (13) is hinged between the handle (12) and the pressing rod (11).

3. The construction site quality testing equipment according to claim 2, characterized in that, The lower side of the detection rod (5) is fixedly connected to the second limiting block (14), the counterweight (8) is slidably connected to the limiting component (15), the limiting component (15) limits the second limiting block (14), and the limiting component (15) is provided with an inclined through groove.

4. The construction site quality testing equipment according to claim 3, characterized in that, The hinge seat (3) is slidably connected to a connecting rod (17), and the connecting rod (17) is fixedly connected to a crossbar (18). The crossbar (18) slides within the inclined through groove of the limiting member (15).

5. A construction site quality testing device according to claim 4, characterized in that, The fall protection mechanism includes: Two limiting posts (19) are provided. The two limiting posts (19) are threaded to the hinge seat (3). One of the limiting posts (19) abuts against the connecting rod (17). The limiting post (19) is fixedly connected with spaced fixing blocks (20). There are two guide members (21), and the two guide members (21) are fixed to the through hammer (7). A sliding block (22) is slidably connected inside the guide member (21), and a crossbar (23) is fixedly connected to the sliding block (22). There are two sliding members (24), which are slidably connected to the hammer (7). The sliding member (24) is provided with an inclined through groove, and the second crossbar (23) slides in the inclined through groove of the sliding member (24).

6. The construction site quality testing equipment according to claim 5, characterized in that, The sliding member (24) is hinged to the swing member (25), the sliding member (24) limits the swing member (25), the swing member (25) limits the fixed block (20) on the same side, and a torsion spring (26) is fixed between the swing member (25) and the sliding member (24).

7. A construction site quality testing device according to claim 5, characterized in that, The sliding block (22) is fixedly connected to a handle (27), and the guide (21) is fixedly connected to a damping rod (28). The telescopic end of the damping rod (28) is fixedly connected to the sliding block (22), and a spring (29) is fixedly connected between the outer shell of the damping rod (28) and the sliding block (22).

8. A construction site quality testing device according to claim 5, characterized in that, It also includes a limiting mechanism, which is disposed at the top of the limiting post (19). The limiting mechanism slowly unlocks the through hammer (7). The limiting mechanism includes: Damping rod 2 (30) is fixed to the limiting post (19), and the telescopic end of the damping rod 2 (30) is fixed to the guide shell (31). A limiting rod (32) is slidably connected to the guide shell (31). A second spring (33) is fixed between the guide shell (31) and the limiting rod (32). The limiting rod (32) has a through hole.

9. A construction site quality testing device according to claim 8, characterized in that, The upper side of the hammer (7) is fixed with a limiting hook (34), the limiting hook (34) passes through the through hole of the limiting rod (32), and the housing of the second damping rod (30) is fixed with a pressing member (35), the pressing member (35) pressing the limiting rod (32).

10. A construction site quality testing device according to claim 9, characterized in that, The upper part of the limiting hook (34) is provided with an inclined surface, and the limiting hook (34) limits the guide shell (31).

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