A high-strain pile testing instrument for precast pile driving

Abstract

The application relates to the technical field of pile testing instruments, in particular to a high-strain pile testing instrument for precast pile driving, which comprises a testing instrument body, a clamping groove is arranged on the outer surface of the testing instrument body, two groups of placing grooves are arranged on the right side surface of the testing instrument body, a dustproof assembly is arranged on the right side surface of the testing instrument body, and a winding assembly is arranged on the top surface of the testing instrument body. The dustproof device is added, so that the screen of the testing instrument can be protected from dust and the screen clarity can be maintained when not in use; meanwhile, the screen can be shielded under the condition that the sunlight is too strong or it is raining on the construction site, so that the user can more clearly and easily read the data without being affected by the environment; the winding device is added, so that the cable can be stored, the user's time is saved due to the disorder of the cable, the device is easy to carry, the protection device is further added, so that the testing instrument can be protected when being accidentally dropped or being improperly placed.

Description

Technical Field

[0001] This invention relates to the field of foundation pile testing instruments, specifically a high-strain foundation pile testing instrument for driving precast piles. Background Technology

[0002] High strain testing is a testing method for determining the vertical compressive bearing capacity and integrity of a single pile. During the experiment, a heavy hammer is used to impact the top of the pile, and the velocity and force time history curves at the top of the pile are measured. The results are then analyzed using wave theory. The high strain pile tester features high integration, light weight, and clear and intuitive waveforms.

[0003] However, existing high-strain pile foundation testing instruments lack dust protection for the screen when not in use. Furthermore, they are often used in construction sites, where dust can fall in, and rain or strong sunlight can affect the user's viewing experience. Additionally, existing instruments lack cable winding mechanisms, requiring time for users to tidy up the messy cables. Moreover, they lack drop protection, making them susceptible to being dropped due to improper placement or impacts on construction sites.

[0004] In addition, other existing pile foundation detectors are equipped with anti-fall components. In order to ensure that a cushioning action is performed after falling to the ground, cushioning components are set on all four sides of the detector body. However, this design is bulky and affects the selection of the installation position of the dustproof components. Furthermore, the strong impact after falling can easily cause the dustproof components to be accidentally activated, thus aggravating the contamination level of the detector after falling. Summary of the Invention

[0005] The purpose of this invention is to provide a high-strain foundation pile tester for precast pile driving, so as to solve the problems mentioned in the background art that the existing high-strain foundation pile testers do not have a screen protection device, a winding device, or a drop protection device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-strain foundation pile tester for precast pile driving, comprising a tester body, a slot formed on the outer surface of the tester body, two sets of placement slots formed on the right side of the tester body, a dustproof component provided on the right side of the tester body, a winding component provided on the top surface of the tester body, and a drop-proof component provided on the left side of the tester body.

[0007] Preferably, the dustproof assembly includes a dust cover hinged to the right side of the tester body. The bottom surface of the dust cover has a groove, and the right side of the inner wall of the groove has a sliding groove A. A telescopic rod is fixedly connected to the top surface of the inner wall of the groove. A spring A is sleeved on the outer surface of the telescopic rod. An L-shaped rod is fixedly connected to the bottom end of the telescopic rod. A document slot is fixedly connected to the right side of the dust cover, and a pen slot is fixedly connected to the right side of the document slot. The dustproof assembly also includes two sets of support rods A hinged to the left side of the dust cover. One end of each support rod A is hinged to a support rod B, and one end of the support rod B is rotatably connected to the bottom surface of the inner wall of the placement slot. A return spring is connected between the two support rods.

[0008] Preferably, one end of the spring A is fixedly connected to the top surface of the inner wall of the groove, and the other end of the spring A is fixedly connected to the top surface of the L-shaped rod.

[0009] Preferably, one end of the L-shaped rod extends through the sliding groove A to the outside of the dust cover, the outer surface of the L-shaped rod slides in cooperation with the groove and the sliding groove A, and the outer surface of the L-shaped rod slides in cooperation with the slot.

[0010] Preferably, the winding assembly includes a triangular base fixedly installed on the top surface of the tester body. A disc is fixedly connected inside the triangular base. A fixed shaft is fixedly connected to the left side of the disc. A coil spring is fixedly connected to the outer surface of the fixed shaft. A cylinder A is rotatably connected to the left side of the disc, and the inner wall of the cylinder A is fixedly connected to one end of the coil spring. A cylinder B is engaged with the left side of the disc, and two sets of circular holes are opened on the outer surface of the cylinder B.

[0011] Preferably, the anti-fall component includes two sets of hinge blocks fixedly connected to the left side of the tester body. The top surface of each hinge block is rotatably connected to a hinge rod A, and one end of each hinge rod A is rotatably connected to a slider. The opposing surfaces of the two sets of sliders are fixedly connected to a spring B. The anti-fall component also includes a protective plate disposed on the left side of the tester body. The right side of the protective plate is provided with a groove B, and the inner wall of the groove B slides against the outer surface of the slider. Each slider has a mass block embedded in it. The groove is located in the non-middle part in the height direction of the protective plate, which is located in the lower middle part. Two slots are provided on the L-shaped rod body. A retaining strip is provided on the side of each slider facing the dustproof component. A protrusion is provided on the adjacent side of the two retaining strips, and the protrusion matches the retaining groove.

[0012] Preferably, the anti-fall component further includes four sets of connecting rods A fixedly connected to the left side of the tester body. Each connecting rod A has a guide groove on its left side, and a connecting rod B is slidably connected inside the guide groove. The outer surface of the connecting rod B is fixedly connected to the right side of the protective plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention adds a dustproof device, which can protect the screen of the detector from dust when not in use and maintain the clarity of the screen. At the same time, it can shield the screen in the case of strong sunlight or rain in the construction site, so that the user can read the data more clearly and easily without being affected by the environment. In addition, a winding device is added, which can store the cable, avoid wasting the user's time due to the mess of the cable, and make it easy to carry. Furthermore, a protective device is added, which can protect the detector in case of accidental drop or improper placement.

[0014] 1. In this invention, by designing an offset center of gravity and linking the dustproof component and the anti-fall component bracket, it is possible to ensure that the anti-fall component lands first after a fall, while also ensuring that the dustproof component is clamped and will not be accidentally opened by the impact. In other non-fall periods, the dustproof component can work independently.

[0015] 2. When using the tester, pull the L-shaped rod upwards to pull it out of the slot. Then open the dust cover. At the same time, support rods A and B open to provide support for the dust cover. When not in use, pull the L-shaped rod upwards to close the dust cover. The L-shaped rod will then extend into the slot and be fixed in place. Support rods A and B are stored in the placement slot. This protects the screen of the tester when not in use from dust, preventing external factors from affecting the clarity of the screen. Also, when in use, if the environment is harsh or changes, the screen reading will not be affected.

[0016] 3. When testing, pulling the cable will cause the coil spring inside cylinder A to retract. After use, due to the restoring force of the coil spring, cylinder A will rotate and the cable will be wound up. This allows the cable to be wound up when not in use, avoiding the time wasted by messy cables, and making it convenient to carry after winding up.

[0017] 4. When the tester body is accidentally dropped, the force is applied to the protective plate. This force is then dispersed, causing the slider to slide towards the center inside the slide groove B. The hinge rod A rotates, and the connecting rod B slides inside the guide groove. After the force on the protective plate is dispersed, the slider slides towards the center inside the slide groove to return to its original position under the elastic action of the spring B. This disperses the force on the protective plate and protects the tester body. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the dustproof component in this invention;

[0020] Figure 3 This is a partial schematic diagram of the dustproof component in this invention;

[0021] Figure 4 This is a schematic diagram of the winding assembly in this invention;

[0022] Figure 5 This is a schematic diagram of cylinder A in this invention;

[0023] Figure 6 This is a schematic diagram of the anti-drop component in this invention.

[0024] In the diagram: 1. Tester body; 101. Slot; 102. Placement slot; 2. Dustproof assembly; 201. Dust cover; 202. Groove; 203. Slide A; 204. Telescopic rod; 205. Spring A; 206. L-shaped rod; 207. Document slot; 208. Pen slot; 3. Support rod A; 301. Support rod B; 4. Rewinding assembly; 401. Triangular base; 402. Disc; 403. Fixed shaft; 404. Coil spring; 405. Cylinder A; 406. Cylinder B; 407. Circular hole; 5. Anti-drop assembly; 501. Hinge block; 502. Hinge rod A; 503. Slider; 504. Spring B; 505. Protective plate; 506. Slide B; 6. Connecting rod A; 601. Guide groove; 602. Connecting rod B. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-6 One embodiment provided by the present invention:

[0027] A high strain foundation pile tester for precast pile driving includes a tester body 1, a slot 101 is provided on the outer surface of the tester body 1, two sets of placement slots 102 are provided on the right side of the tester body 1, a dustproof component 2 is provided on the right side of the tester body 1, a winding component 4 is provided on the top surface of the tester body 1, and an anti-fall component 5 is provided on the left side of the tester body 1.

[0028] Furthermore, the dustproof assembly 2 includes a dust cover 201 hinged to the right side of the tester body 1. A groove 202 is formed on the bottom surface of the dust cover 201, and a sliding groove A203 is formed on the right side of the inner wall of the groove 202. A telescopic rod 204 is fixedly connected to the top surface of the inner wall of the groove 202. A spring A205 is fitted onto the outer surface of the telescopic rod 204. An L-shaped rod 206 is fixedly connected to the bottom end of the telescopic rod 204. A file slot 207 is fixedly connected to the right side of the dust cover 201, and a pen slot 208 is fixedly connected to the right side of the file slot 207. The dustproof assembly 2 also includes a dust cover hinged to the left side of the dust cover 201. The two sets of support rods A3 on the side are each hinged to a support rod B301 at one end, and one end of the support rod B301 is rotatably connected to the bottom surface of the inner wall of the placement slot 102. By setting the dustproof component 2, the screen of the tester body 1 can be protected from dust when not in use, so as to avoid the screen clarity of the tester body 1 being affected by external factors. At the same time, when in use, if the environment is harsh or changes, the screen of the tester body 1 can be protected. In addition, the document slot 207 and pen slot 208 can hold the documents and pens needed for recording, so as to avoid them being misplaced and not being able to find them.

[0029] Furthermore, one end of spring A205 is fixedly connected to the top surface of the inner wall of groove 202, and the other end of spring A205 is fixedly connected to the top surface of L-shaped rod 206, so that L-shaped rod 206 can enter the slot 101 and be fixed in the slot 101 under the action of the natural elastic force of spring A205, thereby fixing the dust cover 201.

[0030] Furthermore, one end of the L-shaped rod 206 extends through the sliding groove A203 to the outside of the dust cover 201. The outer surface of the L-shaped rod 206 is slidably engaged with the groove 202 and the sliding groove A203, and the outer surface of the L-shaped rod 206 is slidably engaged with the slot 101. Thus, the user can pull the L-shaped rod 206 on the outer surface of the dust cover 201 to open and close the dust cover 201.

[0031] Furthermore, the winding assembly 4 includes a triangular base 401 fixedly installed on the top surface of the tester body 1. A disc 402 is fixedly connected inside the triangular base 401. A fixed shaft 403 is fixedly connected to the left side of the disc 402. A coil spring 404 is fixedly connected to the outer surface of the fixed shaft 403. A cylinder A405 is rotatably connected to the left side of the disc 402, and the inner wall of the cylinder A405 is fixedly connected to one end of the coil spring 404. A cylinder B406 is engaged with the left side of the disc 402. Two sets of circular holes 407 are opened on the outer surface of the cylinder B406. By setting the winding assembly 4, the cable can be wound up when not in use under the action of the coil spring 404, avoiding the time loss caused by the messy cable, and making it convenient to carry after winding.Furthermore, the anti-drop component 5 includes two sets of hinge blocks 501 fixedly connected to the left side of the tester body 1. Each hinge block 501 has a hinge rod A502 rotatably connected to its top surface, and a slider 503 rotatably connected to one end of each hinge rod A502. A spring B504 is fixedly connected to the opposite surfaces of the two sets of sliders 503. The anti-drop component 5 also includes a protective plate 505 located on the left side of the tester body 1. A groove B506 is formed on the right side of the protective plate 505, and the inner wall of the groove B506 slides in contact with the outer surface of the slider 503. By setting the anti-drop component 5, the tester body 1 can be protected from falling objects. The protective plate 505 disperses the force, protecting the tester body 1 in case of accidental drop or improper placement. Each of the two sliders 503 has a embedded mass block. The groove B506 is located in the non-central part of the height direction of the protective plate 505, specifically in the lower middle section. Two slots are formed on the L-shaped rod 206. A retaining strip is provided on the side of each slider 503 facing the dustproof component 2. A protrusion is provided on the adjacent sides of the two retaining strips, and the protrusion matches the retaining groove. This design ensures that the tester body... During an accidental drop, the shift in the center of gravity causes the anti-fall component 5 to land first. While cushioning the impact, the two sliders 503 also move closer together to prevent unintended activation of the dustproof component. For example, if another object on the ground impacts the protruding part of the L-shaped rod 206, the dustproof component 2 may accidentally activate. Specifically, when the tester body 1 is accidentally dropped, the force is applied to the protective plate 505, and then dispersed, causing the slider 503 to slide towards the center inside the groove B506. This causes the hinge rod A502 to rotate, and simultaneously the connecting rod B60... 2. After sliding inside the guide groove 601 and dispersing the force on the protective plate 505, the slider 503 returns to its original position under the action of the spring B504. This disperses the force on the protective plate 505 and protects the tester body 1. During the movement of the two sliders 503 towards each other in the slide groove B506, their respective locking strips move closer together, thus entering the slot of the L-shaped rod 206 and locking it in place. In other scenarios, the two locking strips are away from the slot, ensuring the normal opening of the dustproof component.

[0032] Therefore, by designing the center of gravity to be offset and linking the dustproof component and the anti-fall component bracket in the present invention, it is possible to ensure that the anti-fall component lands first after a fall, while also ensuring that the dustproof component is clamped and will not be accidentally opened by the impact, and that the dustproof component can work independently during other non-fall periods.

[0033] Furthermore, the anti-drop component 5 also includes four sets of connecting rods A6 fixedly connected to the left side of the tester body 1. Each connecting rod A6 has a guide groove 601 on its left side, and a connecting rod B602 is slidably connected inside the guide groove 601. The outer surface of the connecting rod B602 is fixedly connected to the right side of the protective plate 505. By setting the anti-drop component 5, the force on the protective plate 505 can be dispersed, thus protecting the tester body 1 in the event of accidental drop or improper placement.

[0034] When using the tester body 1, pull the L-shaped rod 206 upwards to pull it out of the slot 101. Then open the dust cover 201. At the same time, the support rods A3 and B301 open to provide support for the dust cover 201. This can protect the screen of the tester body 1 when it is in use, and will not affect the reading even in harsh environments. When not in use, pull the L-shaped rod 206 upwards to close the dust cover 201. Under the action of the telescopic rod 204 and the spring A205, the L-shaped rod 206 will extend into the slot 101 and be fixed. At the same time, the support rods A3 and B301 rotate and retract into the placement slot 102. This can protect the screen of the tester body 1 from dust when not in use, and prevent the clarity of the screen of the tester body 1 from being affected by external factors. At the same time, it can protect the screen of the tester body 1 when the environment is harsh or changes during use.

[0035] When installing the cable, unscrew cylinder B406 and wind the cable onto cylinder A405. Then, pass both ends of the cable through the round hole 407, and screw cylinder B406 back on. During testing, connect both ends of the cable to the interface. When pulling the cable, cylinder A405 rotates, and the coil spring 404 inside cylinder A405 contracts. After use, due to the restoring force of the coil spring 404, cylinder A405 rotates, and the cable is wound up. Simultaneously, the force of the coil spring 404 just pulls the cable back to its starting position. Figure 4 This allows the cable to be rolled up when not in use, preventing the user's time from being affected by the mess of the cable, and making it convenient to carry after being rolled up;

[0036] When the tester body 1 is accidentally dropped, the force is applied to the protective plate 505. This force is then dispersed, causing the slider 503 to slide towards the center inside the slide groove B506. The hinge rod A502 rotates, and the connecting rod B602 slides inside the guide groove 601. After the force on the protective plate 505 is dispersed, the slider 503 returns to its original position under the action of the spring B504. This disperses the force on the protective plate 505 and protects the tester body 1.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-strain foundation pile tester for precast pile driving, comprising a tester body (1), characterized in that: The outer surface of the tester body (1) is provided with a slot (101), the right side of the tester body (1) is provided with two sets of placement slots (102), the right side of the tester body (1) is provided with a dustproof component (2), the top surface of the tester body (1) is provided with a winding component (4), and the left side of the tester body (1) is provided with a drop-proof component (5). The dustproof assembly (2) includes a dust cover (201) hinged to the right side of the tester body (1). The bottom surface of the dust cover (201) has a groove (202). The right side of the inner wall of the groove (202) has a sliding groove A (203). A telescopic rod (204) is fixedly connected to the top surface of the inner wall of the groove (202). A spring A (205) is sleeved on the outer surface of the telescopic rod (204). An L-shaped rod (206) is fixedly connected to the bottom end of the telescopic rod (204). The dustproof assembly (2) also includes two sets of support rods A (3) hinged to the left side of the dust cover (201). One end of each support rod A (3) is hinged to a support rod B. (301), and one end of the support rod B (301) is rotatably connected to the bottom surface of the inner wall of the placement groove (102), one end of the spring A (205) is fixedly connected to the top surface of the inner wall of the groove (202), and the other end of the spring A (205) is fixedly connected to the top surface of the L-shaped rod (206). One end of the L-shaped rod (206) extends through the sliding groove A (203) to the outside of the dust cover (201). The outer surface of the L-shaped rod (206) is slidably engaged with the groove (202) and the sliding groove A (203). The outer surface of the L-shaped rod (206) is slidably engaged with the slot (101). A return spring is connected between the two support rods B (301); The right side of the dust cover (201) is fixedly connected to a file slot (207), and the right side of the file slot (207) is fixedly connected to a pen slot (208). The winding assembly (4) includes a triangular base (401) fixedly installed on the top surface of the tester body (1). A disc (402) is fixedly connected inside the triangular base (401). A fixed shaft (403) is fixedly connected to the left side of the disc (402). A coil spring (404) is fixedly connected to the outer surface of the fixed shaft (403). A cylinder A (405) is rotatably connected to the left side of the disc (402), and the inner wall of the cylinder A (405) is fixedly connected to one end of the coil spring (404). A cylinder B (406) is engaged with the left side of the disc (402). Two sets of round holes (407) are opened on the outer surface of the cylinder B (406). The anti-fall component (5) includes two sets of hinge blocks (501) fixedly connected to the left side of the tester body (1). A hinge rod A (502) is rotatably connected to the top surface of each hinge block (501). A slider (503) is rotatably connected to one end of each hinge rod A (502). Springs B (504) are fixedly connected to the opposite surfaces of the two sets of sliders (503). The anti-fall component (5) also includes a protective plate (505) disposed on the left side of the tester body (1). A groove B (504) is provided on the right side of the protective plate (505). 6), and the inner wall of the groove B (506) slides in cooperation with the outer surface of the slider (503). Both sliders (503) have embedded mass blocks. The groove B (506) is located in the non-middle part of the protective plate (505). The non-middle part is located in the lower middle part in the height direction. Two slots are opened on the L-shaped rod (206). A locking strip is provided on the side of each slider (503) facing the dustproof component (2). A protrusion is provided on the side of the two locking strips that are close to each other. The protrusion matches the slot.

2. The high-strain foundation pile tester for precast pile driving according to claim 1, characterized in that: The anti-fall component (5) also includes four sets of connecting rods A (6) fixedly connected to the left side of the tester body (1). Each connecting rod A (6) has a guide groove (601) on its left side. Each guide groove (601) has a connecting rod B (602) slidably connected inside it. The outer surface of the connecting rod B (602) is fixedly connected to the right side of the protective plate (505).

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