A building bearing capacity detection device and a detection method

Abstract

The present invention discloses a building bearing capacity detection device and a detection method, including a press, a base, a sliding device and a detection device. The detection device is arranged on the press, which provides pressure for the detection device. The press is arranged on the base. The sliding device includes a guiding inclined rail, which is arranged on the base, and a bearing plate is slidably arranged thereon for placing precast slabs. A support platform is arranged on the base. When the bearing plate slides on the guiding inclined rail, its upper plane is always parallel to the upper plane of the support platform, and when it passes the support platform. The present invention provides a building bearing capacity detection device and a detection method, which can simultaneously complete the detection of the bearing tension of the lifting rings when detecting the bearing capacity of precast slabs, so as to complete two detections in one detection process, avoid the work of repeated handling, save the detection time, make the detection more convenient, and avoid leaving the detection work of the bearing tension of the lifting rings.

Description

Technical Field

[0001] The present invention relates to the technical field of building detection, and in particular to a building bearing capacity detection device and a detection method. Background Art

[0002] With the development of the times, many buildings now start to use prefabricated construction, that is, many concrete components are manufactured in a professional concrete component factory and then transported to the construction site for assembly. Using this construction method greatly saves the construction time of the building and reduces environmental pollution at the construction site;

[0003] After the prefabricated components are centrally produced, multiple inspections are required, including bearing capacity inspection. However, many prefabricated components are large in volume and mass, and it is very inconvenient to handle them. When multiple inspection procedures are required, the handling will be very complicated. Summary of the Invention

[0004] The present invention aims at the deficiencies in the prior art and provides a building bearing capacity detection device and a detection method.

[0005] To solve the above technical problems, the present invention is solved by the following technical solutions: A building bearing capacity detection device includes a press, a base, a sliding device and a detection device. The detection device is arranged on the press, which provides pressure for the detection device. The press is arranged on the base. The sliding device includes a guiding inclined rail, which is arranged on the base, and a bearing plate is slidably arranged thereon for placing a precast slab. A support platform is arranged on the base. When the bearing plate slides on the guiding inclined rail, its upper plane is always parallel to the upper plane of the support platform, and when it passes through the support platform, the two are in the same plane. The detection device includes a pressure-bearing head, on which a pressure rope rod is arranged. A sliding rod is also arranged on the base, and two sliding rods are symmetrically arranged on the left and right of the pressure-bearing head. After the precast slab is placed on the bearing plate, the suspension cable is hung on the two sliding rods. When the detection device completes the bearing capacity detection of the precast slab, the pressure rope rod presses on the suspension cable, so that the point connected to the lifting ring of the precast slab is subjected to an upward pulling force, thereby completing the tensile force detection of the lifting ring.

[0006] The beneficial effects are as follows: When detecting the bearing capacity of the precast slab, the bearing tensile force detection of the lifting ring is completed at the same time, so that two detections are completed in one detection process, avoiding the work of repeated handling, saving the detection time at the same time, making the detection more convenient, and avoiding missing the detection work of the bearing tensile force of the lifting ring.

[0007] In the above solution, preferably, the press includes a hydraulic cylinder and a sliding plate. A guide post is also arranged on the base. The sliding plate is slidably arranged on the guide post and is arranged on the telescopic rod of the hydraulic cylinder. The hydraulic cylinder is arranged on the base.

[0008] In the above solution, preferably, a cable limiting member is slidably provided on the sliding rod, and the cable is hung on the cable limiting member. When the precast slab moves inward, the cable limiting member slides inward together and limits the relative position thereof.

[0009] The beneficial effect is that it is convenient for the cable to move together with the precast slab, and at the same time, the cable is positioned so that it will not displace relative to the precast slab.

[0010] In the above solution, preferably, a sliding long groove is formed in the bearing head, a guiding rod is arranged therein, the rope pressing rod is slidably arranged on the guiding rod and also slidably arranged in the sliding long groove, and a first elastic member is sleeved on the guiding rod, with its two ends respectively abutting against the rope pressing rod and the top wall of the sliding long groove. A locking device is further arranged in the bearing head for locking the rope pressing rod.

[0011] The beneficial effect is that when the bearing head descends, the suspension chain is pre-tightened first, so that the testing equipment can adapt to cables of different lengths.

[0012] In the above solution, preferably, a friction plate long groove perpendicular to the sliding long groove is further formed in the bearing head. The locking device includes a friction plate and a top contact plate. The friction plate is slidably arranged in the friction plate long groove and can abut against the rope pressing rod. The top contact plate is slidably arranged up and down on the bearing head, and its lower end extends out of the lower end face of the bearing head. When the top contact plate slides upward, it can abut against the friction plate and move the friction plate towards the rope pressing rod.

[0013] In the above solution, preferably, the top contact plate is provided with a first top contact block, and the friction plate is provided with a second top contact block. When the top contact plate slides upward, the first top contact block thereon can abut against the second top contact block to abut and move the friction plate towards the rope pressing rod.

[0014] In the above solution, preferably, the top contact plate includes a top contact rod which is threadedly connected to the top contact plate and extends out of the lower end face of the bearing head. By rotating the top contact rod, the distance between the bottom end of the top contact rod and the lower end face of the bearing head can be adjusted.

[0015] In the above solution, preferably, two groups of the friction plate and the top contact plate are symmetrically arranged on the left and right of the rope pressing rod.

[0016] The beneficial effect is that the rope pressing rod can be locked better.

[0017] In the above solution, preferably, the sliding device further includes a belt, which is arranged on the base and is parallel to the guiding inclined rail. The bottom of the bearing plate is arranged on the belt, and the rotation of the belt drives the bearing plate to slide up and down. An energy storage device is arranged at the upper end of the belt, which is used to store kinetic energy when the bearing plate slides down. A first gear is arranged at the bottom end of the belt to rotate unidirectionally. A rack is arranged on the base to slide guidingly, which is meshed and connected with the first gear, and a second elastic member is abutted against the rear end of the rack. A pull rope is also arranged at the rear end of the rack, and the other end of the pull rope is arranged on the sliding plate. When the rack slides backward, it drives the first gear to rotate, so that the belt drives the bearing plate to slide upward.

[0018] Its beneficial effect is that after the detection is completed, the sliding plate moves upward, driving the bearing plate to slide upward, so that the precast slab that has completed the detection moves to the initially locked position, which is convenient for lifting.

[0019] A detection method for a building bearing capacity detection device, characterized in that:

[0020] S1: Place the precast slab on the bearing plate through a hoisting device. The operator starts the device, unlocks the belt, and the precast slab drives the bearing plate to slide downward and automatically lands on the support platform.

[0021] S2: The hydraulic cylinder starts to work, causing the detection device to start moving downward. During the downward movement, the rope pressing rod presses against the suspension cable and compresses the suspension cable.

[0022] S3: The pressure head abuts against the precast slab, locks the rope pressing rod, and at the same time presses against the precast slab to perform bearing capacity detection on it. At the same time, it drives the rope pressing rod to press down, applying the pressure on the suspension cable to perform tensile force detection on the lifting ring on the precast slab.

[0023] S4: The hydraulic cylinder rises upward, driving the rack to slide backward, driving the first gear to rotate, so that the belt drives the bearing plate to slide upward, and the precast slab returns to the initially locked position.

[0024] The beneficial effect of the present invention is that the present invention provides a building bearing capacity detection device and a detection method, which can simultaneously complete the bearing tensile force detection of the lifting ring when detecting the bearing capacity of the precast slab, so that two detections are completed in one detection process, avoiding the work of repeated handling, saving the detection time at the same time, making the detection more convenient, and avoiding leaving the detection work of the bearing tensile force of the lifting ring. At the same time, before the detection, the suspension cable can be automatically pre-tightened, so that it can adapt to different suspension cables and is more convenient for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the present invention.

[0026] Figure 2 It is a cross-sectional view of the present invention.

[0027] Figure 3 Schematic diagram of the base of the present invention

[0028] Figure 4 Schematic diagram of the rope pressing rod of the present invention when it is not locked

[0029] Figure 5 Schematic diagram of the rope pressing rod of the present invention when it is locked Specific implementation mode

[0030] The present invention will be further described in detail below in conjunction with the drawings and specific implementation modes: Refer to Figures 1 - 5 , a building bearing capacity detection device, comprising a press 1, a base 2, a sliding device 3 and a detection device 4. The press 1 includes a hydraulic cylinder 11 and a sliding plate 12. The hydraulic cylinder 11 is arranged on the base 2, and the sliding plate 12 is arranged on the telescopic rod of the hydraulic cylinder 11. The base 2 includes a support table 21 and guide columns 24. The sliding plate 12 is slidably arranged on the guide columns 24. There are 2 guide columns 24 symmetrically arranged left and right, and the left and right guide columns are connected together. A sliding rod 23 is further arranged on the base 2, and there are 2 sliding rods 23 arranged left and right. At the same time, the sliding rod 23 is arranged on the guide column 24 to make it more stable. A cable suspension limit member 25 is further slidably arranged on the sliding rod 23, which can slide back and forth on the sliding rod 23. At the same time, a groove is arranged thereon for limiting the cable. The sliding device 3 includes a guiding inclined rail 31, a bearing plate 32 and a belt 33. The guiding inclined rail 31 is arranged on the base 2 and is inclined. The bearing plate 32 is slidably arranged on the guiding inclined rail 31. When it is in an unfixed state, it can slide down under the action of its own gravity. Two support tables 21 are symmetrically arranged on the left and right of the guiding inclined rail 31, and the upper plane of the bearing plate 32 is always parallel to the upper plane of the support table 31. When the bearing plate 32 passes through the support table 21, its upper plane is in the same plane as the upper plane of the support table 21. The belt 33 is arranged on the base 2 parallel to the guiding inclined rail 31, and the bearing plate 32 is fixedly arranged on the belt 33. An energy storage device 34 and a locking device 35 are arranged at the upper end of the belt 33. The locking device 35 is used to lock the belt 33 to prevent it from rotating. The energy storage device 34 includes a scroll spring 341 and a fixed outer cover 342. The fixed outer cover 342 is arranged on the base 2. The rotating shaft at the upper end of the belt 33 is connected to the center of the scroll spring 341, and its outer end is arranged on the fixed outer cover 342. When the bearing plate 32 slides down, the scroll spring 341 is tightened

[0031] Among them, the precast slab is placed on the bearing plate 32 through a hoisting device, and the lifting cable is placed on the groove of the lifting cable limiting member 25. At this time, the operator presses the start switch, and the locking device 35 is unlocked, so that the belt 33 can rotate. Under the action of the self-weight of the precast slab, the bearing plate 32 is driven to slide downward along the guiding inclined rail 31. When passing through the support platform 21, the precast slab automatically falls on the support platform 21. At this time, the lifting cable limiting member 25 moves in the direction of the support platform 21 together with the precast slab under the action of the lifting cable, and finally the lifting cable limiting member 25 is also located above the support platform 21.

[0032] The detection device 4 includes a pressure-bearing head 41, on which a sliding long groove 411 and a friction plate long groove perpendicular to the sliding long groove 411 are provided. A guiding rod 412 is arranged in the sliding long groove 411, and a rope pressing rod 42 is slidably arranged thereon. At the same time, the rope pressing rod 42 is slidably arranged in the sliding long groove 411. A first elastic member 413 is sleeved on the guiding rod 412, and its two ends respectively abut against the rope pressing rod 42 and the top wall of the sliding long groove 411. A locking device 43 is further arranged in the pressure-bearing head 41, which includes a friction plate 431 and a top contact plate 432. The friction plate 431 is slidably arranged in the friction plate long groove and can abut against the rope pressing rod 42. The top contact plate 432 is slidably arranged up and down on the pressure-bearing head 41, and the top contact plate 432 is provided with a first top contact block 4321, and the friction plate 431 is provided with a second top contact block 4311.

[0033] Among them, when the top contact plate 432 slides upward, the first top contact block 4321 thereon can abut against the second top contact block 4311, thereby abutting the friction plate 431 to move in the direction of the rope pressing rod 42, so as to press against the rope pressing rod 42 and lock the rope pressing rod 42. The rope pressing rod 42 is designed as a polygonal shaft, and the surface where the friction plate 431 abuts is a plane, which is convenient for the friction plate 431 to lock the rope pressing rod 42.

[0034] When the pressure-bearing head 41 descends, the rope pressing rod 42 first presses against the lifting cable and compresses the lifting cable. After being compressed, the relative position of the rope pressing rod 42 remains unchanged. At this time, the pressure-bearing head 41 continues to descend. Due to the large mass of the precast slab, the rope pressing rod 42 cannot lift it, so the rope pressing rod 42 remains stationary and compresses the first elastic member 413.

[0035] The top contact plate 432 includes a top contact rod 4232, which is threadedly connected to the lower end of the top contact plate 432 and extends out of the lower end surface of the pressure-bearing head 41. By rotating the top contact rod 4232, the distance between the bottom end of the top contact rod 4232 and the lower end surface of the pressure-bearing head 41 can be adjusted. By adjusting the distance, the top contact force of the top contact plate 432 on the friction plate 431 can be changed, thereby changing the pressure on the rope pressing rod 42 and the maximum friction force received by the rope pressing rod 42. This maximum friction force is the maximum pressure on the lifting cable.

[0036] When the pressure head 41 slides downward, the top contact rod 4232 first contacts the precast slab, and it slides upward under the force, so that the first top contact block 4321 on it contacts the second top contact block 4311, thereby pushing the friction plate 431 to move toward the rope pressing rod 42, making it press against the rope pressing rod 42. At the same time, there are 2 groups of friction plates 431 and top contact plates 432 symmetrically arranged on the left and right sides of the rope pressing rod 42. Therefore, the left and right friction plates 431 press against the rope pressing rod 42 at the same time. After the pressure head 41 presses against the precast slab, the rope pressing rod 42 is automatically locked and moves together with the pressure head 41. At this time, the pressure head 41 continues to slide downward, applying pressure to the precast slab, thereby detecting its bearing capacity and completing the detection of the bearing capacity of the precast slab. While the pressure head 41 slides downward, the rope pressing rod 42 on it presses downward, applying pressure to the suspension cable. Through the suspension cable, the force is finally applied to the lifting ring of the precast slab, thereby simultaneously completing the detection of the bearing tension of the lifting ring of the precast slab.

[0037] At the same time, a third elastic member 433 is also arranged between the left and right friction plates 431. Its two ends contact the friction plates 431 on both sides and are used to make the friction plates 431 and the top contact plates 432 return to the initial state after the detection is completed.

[0038] A first gear 36 is unidirectionally rotatably arranged on the rotating roller at the bottom end of the belt 33. A polygonal guide rod 27 is also arranged on the base 2. A rack 28 is slidably arranged on it, and the rack 28 is meshed and connected with the first gear 36. A second elastic member 26 is also sleeved on the polygonal guide rod 27. Its two ends respectively contact the base 2 and the rack 28, and one end of a pull rope is arranged at the rear end of the rack 28, and the other end is arranged on the sliding plate 12.

[0039] When the bearing plate 32 slides downward, the rotating roller at its lower end rotates counterclockwise. Since the first gear 36 is unidirectionally rotatably arranged and the rack 28 does not move, when the rotating roller rotates counterclockwise, the first gear 36 rotates relative to the rotating roller. When the sliding plate 12 moves downward, the rope is relaxed, and the rack 28 slides forward under the action of the second elastic member 26. Its forward sliding drives the first gear 36 to rotate counterclockwise. Therefore, at this time, the first gear 36 rotates relative to the rotating roller. When the sliding plate 12 slides upward, the rack 28 slides backward, driving the first gear 36 to rotate clockwise. At this time, it drives the rotating roller to rotate clockwise, thereby driving the belt to rotate and driving the bearing plate 32 to move upward, so that the bearing plate 32 moves to the initially locked position, and the initially locked position is not below the detection device 4, so it is convenient for hoisting.

[0040] Its working principle or usage method is as follows:

[0041] Initially, the precast slab is hoisted and placed on the bearing plate 32. At this time, the operator turns on the equipment switch, and the locking device on the belt 33 is unlocked. Under the action of gravity, the bearing plate 32 slides downward, causing the precast slab to automatically fall on the support table 21.

[0042] After the precast slab falls on the support table 21, it presses the switch on the support table 21. At this time, the hydraulic cylinder 11 starts to work, causing the pressure head 41 to slide downward. The rope pressing rod 42 first presses on the suspension cable, compressing the suspension cable. After being compressed, the relative position of the rope pressing rod 42 remains unchanged. At this time, the pressure head 41 continues to move downward. Since the mass of the precast slab is very large, the rope pressing rod 42 cannot lift it, so the rope pressing rod 42 remains stationary and compresses the first elastic member 413. After the top contact rod 4232 touches the precast slab, it slides upward under the force, causing the first top contact block 4321 on it to touch the second top contact block 4311, thereby causing the top contact friction plate 431 to move toward the rope pressing rod 42 and press on the rope pressing rod 42. At the same time, there are 2 groups of friction plates 431 and top contact plates 432 symmetrically arranged on the left and right sides of the rope pressing rod 42. Therefore, the left and right friction plates 431 simultaneously press on the rope pressing rod 42. After the pressure head 41 touches the precast slab, the rope pressing rod 42 is automatically locked and moves together with the pressure head 41. At this time, the pressure head 41 continues to slide downward, applying pressure to the precast slab to detect its bearing capacity and complete the detection of the bearing capacity of the precast slab. While the pressure head 41 slides downward, the rope pressing rod 42 on it presses downward on the suspension cable, applying pressure to the suspension cable. Through the suspension cable, the force is finally applied to the lifting ring of the precast slab, thereby simultaneously completing the detection of the bearing tension of the lifting ring of the precast slab.

[0043] After the detection is completed, the sliding plate 12 slides upward, and the rack 28 slides backward, driving the first gear 36 to rotate clockwise. At this time, it drives the rotating roller to rotate clockwise, thereby driving the belt to rotate and driving the bearing plate 32 to move upward, moving the bearing plate 32 to the initial locked position. The initial locked position is not below the detection device 4, so it is convenient for hoisting.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A building bearing capacity detection device, characterized in that: It includes a press (1), a base (2), a sliding device (3) and a detection device (4). The detection device (4) is arranged on the press (1) to provide pressure for it. The press (1) is arranged on the base (2). The sliding device (3) includes a guiding inclined rail (31) which is arranged on the base (2), and a bearing plate (32) is slidably arranged thereon for placing precast slabs. A support platform (21) is arranged on the base (2). When the bearing plate (32) slides on the guiding inclined rail (31), its upper plane is always parallel to the upper plane of the support platform (21), and when it passes the support platform (21), the two are in the same plane. The detection device (4) includes a pressure-bearing head (41) on which a rope-pressing rod (42) is arranged. Two sliding rods (23) are also arranged on the base (2) and are symmetrically arranged on the left and right of the pressure-bearing head (41). After the precast slab is placed on the bearing plate (32), the lifting cable is hung on the two sliding rods (23). When the detection device (4) completes the bearing capacity detection of the precast slab, the rope-pressing rod (42) presses on the lifting cable, so that the point connected to the lifting ring of the precast slab is subjected to an upward pulling force, thus completing the pulling force detection of the lifting ring. A sliding long groove (411) is formed on the pressure-bearing head (41), and a guiding rod (412) is arranged therein. The rope-pressing rod (42) is slidably arranged on the guiding rod (412) and also slidably arranged in the sliding long groove (411). A first elastic member (413) is sleeved on the guiding rod (412), and its two ends respectively abut against the rope-pressing rod (42) and the top wall of the sliding long groove (411). A locking device (43) is also arranged in the pressure-bearing head (41) for locking the rope-pressing rod (42). A friction plate long groove perpendicular to the sliding long groove (411) is also formed in the pressure-bearing head (41). The locking device (43) includes a friction plate (431) and a top-touching plate (432). The friction plate (431) is slidably arranged in the friction plate long groove and can abut against the rope-pressing rod (42). The top-touching plate (432) is slidably arranged up and down on the pressure-bearing head (41), and its lower end extends out of the lower end surface of the pressure-bearing head (41). When the top-touching plate (432) slides upward, it can abut against the friction plate (431) to move the friction plate (431) towards the rope-pressing rod (42).

2. The building bearing capacity detection device according to claim 1, characterized in that: The press (1) includes a hydraulic cylinder (11) and a sliding plate (12). Guide columns (24) are also arranged on the base (2). The sliding plate (12) is slidably arranged on the guide columns (24) and is arranged on the telescopic rod of the hydraulic cylinder (11). The hydraulic cylinder (11) is arranged on the base (2).

3. The building bearing capacity detection device according to claim 1, characterized in that: A lifting cable limiting member (25) is slidably arranged on the sliding rod (23). The lifting cable is hung on the lifting cable limiting member (25). When the precast slab moves inward, the lifting cable limiting member (25) slides inward together and limits the relative position.

4. A building bearing capacity detection device according to claim 1, characterized in that: The top contact plate (432) is provided with a first top contact block (4321), and the friction plate (431) is provided with a second top contact block (4311). When the top contact plate (432) slides upward, the first top contact block (4321) thereon can contact the second top contact block (4311), and the top contact friction plate (431) moves toward the rope pressing rod (42).

5. The building bearing capacity detection device according to claim 1, characterized in that: The top contact plate (432) includes a top contact rod (4232) which is threadedly connected to the top contact plate (432) and extends out of the lower end surface of the bearing head (41). By rotating the top contact rod (4232), the distance between the bottom end of the top contact rod (4232) and the lower end surface of the bearing head (41) can be adjusted.

6. The building bearing capacity detection device according to claim 5, characterized in that: Two groups of the friction plate (431) and the top contact plate (432) are symmetrically arranged on the left and right sides of the rope pressing rod (42).

7. An architectural bearing capacity detection device according to claim 2, characterized in that: The sliding device (3) further includes a belt (33) which is arranged on the base (2) and is parallel to the guiding inclined rail (31). The bottom of the bearing plate (32) is arranged on the belt (33). The rotation of the belt (33) drives the bearing plate (32) to slide up and down. An energy storage device (34) is arranged at the upper end of the belt (33) and is used for storing kinetic energy when the bearing plate (32) slides down. A first gear (36) is arranged at the bottom end of the belt (33) to rotate in one direction. A rack (28) is arranged on the base (2) to slide in a guiding manner and is meshed with the first gear (36). A second elastic member (26) abuts against the rear end of the rack (28). A pull rope is further arranged at the rear end of the rack (28), and the other end of the pull rope is arranged on the sliding plate (12). When the rack (28) slides backward, it drives the first gear (36) to rotate, so that the belt (33) drives the bearing plate (32) to slide upward.

8. A detection method for using a building bearing capacity detection device as described in claim 7, characterized in that: S1: Place the precast slab on the bearing plate (32) through a hoisting device. The operator starts the device, the belt (33) is unlocked, and the precast slab drives the bearing plate (32) to slide downward and automatically fall on the support platform (21). S2: The hydraulic cylinder (11) starts to work, so that the detection device (4) starts to move downward. During the downward movement, the rope pressing rod (42) presses on the suspension cable and compresses the suspension cable. S3: The bearing head (41) contacts the precast slab, locks the rope pressing rod (42), and at the same time presses on the precast slab to perform bearing capacity detection on it. At the same time, it drives the rope pressing rod (42) to press downward, applies the pressure on the suspension cable, and performs tensile force detection on the sling on the precast slab. S4: The hydraulic cylinder (11) rises upward, drives the rack (28) to slide backward, drives the first gear (36) to rotate, so that the belt (33) drives the bearing plate (32) to slide upward, and the precast slab returns to the initial locked position.

Images