Static load detection instrument for pile foundation

Abstract

The utility model relates to the technical field of pile foundation detection, in particular to a pile foundation detection static load instrument which comprises a pile foundation body and a static load instrument body, the static load instrument body comprises a pressure sensor and a displacement sensor, a jack and the pressure sensor indirectly connected with the jack are arranged on the pile foundation body, and the displacement sensor is connected with the jack. A bearing plate for supporting the balancing weight is arranged at the upper end of the jack, and an adjusting assembly for finely adjusting the position of the balancing weight and a limiting assembly for preventing the balancing weight from moving are arranged between the bearing plate and the balancing weight; the adjusting assembly comprises a supporting groove detachably connected with the bearing plate, a plurality of adjusting rollers are installed in the supporting groove in a rolling mode, the two ends of each adjusting roller are fixedly connected with roller shafts, and guide grooves corresponding to the roller shafts are formed in the groove walls of the two sides of the supporting groove. The limiting assembly is movably installed on the supporting groove. The utility model has the advantages of convenient and fast adjustment, simple and stable structure, reduced use of electronic equipment, and more suitability for outdoor environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile foundation detection technical field especially is a kind of pile foundation detection static load instrument. BACKGROUND

[0002] As an important means of providing parameters for pile foundation design and measuring pile foundation construction quality, pile foundation static load has always been the most important project of foundation detection, and the amount of pile foundation engineering is increasing, and the vertical uplift bearing capacity and vertical compression bearing capacity of single pile are increasingly required, and the principle of static load detection of test pile is to apply vertical pressure on the top of test pile, and the settlement of pile top with time is observed to determine the corresponding single pile vertical compression bearing capacity.

[0003] Chinese patent CN220184115U discloses a kind of pile foundation detection static load instrument, including pile basic body, clamping structure and limiting structure, the utility model relates to pile foundation detection technical field, the upper end of the pile basic body is provided with jack, the upper end of jack is provided with bearing plate, bearing plate lower end left and right sides are symmetrically provided with two support sleeves, first threaded rod is arranged in the top of support sleeve, and first tapered gear is arranged on the outside of first threaded rod upper side, rotating shaft is arranged on the inner side wall of support sleeve;Device increases the stability of support sleeve and ground contact by several ground insertion rods, and staff can adjust bearing plate to horizontal state by observing level, to prevent bearing plate from tilting;Several counterweights are always placed in the center position of bearing plate by limiting structure, to prevent several counterweights from being discharged from the center position of bearing plate and causing bearing plate to tilt, to prevent several counterweights from sliding off bearing plate and causing danger.

[0004] But in the process of practical application, it is found that although counterweight loading can maintain the balance of the whole structure by limiting structure and adjusting support block so that counterweight is located in the center position, in the actual use process, operation is inconvenient, and most of the time, multiple people are needed to cooperate to adjust to reach completely stable state, operation is relatively cumbersome. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem to provide a kind of pile foundation detection static load instrument, adjustment is convenient and fast, structure is simple and stable, reduce the use of electronic equipment, more suitable for outdoor environment.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A kind of pile foundation detection static load instrument, including pile basic body and static load instrument body, the static load instrument body includes pressure sensor and displacement sensor, the pile basic body is equipped with jack and the pressure sensor indirectly connected with jack, it is characterized by: the upper end of the jack is equipped with load-bearing plate for supporting counterweight, load-bearing plate and the counterweight between are equipped with adjusting assembly for fine adjustment counterweight position and limiting component for preventing counterweight movement;The adjusting assembly includes the support groove that can be detachably connected with the load-bearing plate, several adjusting rollers are rotatably installed in the support groove, the both ends of the adjusting roller are fixedly connected with the roller shaft, and the guide groove is formed in the two side walls of the support groove corresponding to the roller shaft;The limiting component is movably installed on the support groove.

[0008] Further, the surface of the adjusting roller is provided with an anti-skid layer.

[0009] Further, the diameter of the adjusting roller is greater than the inner groove height of the support groove by 3-10mm.

[0010] Further, the limiting component includes at least four groups, each group of limiting components includes a nut fixedly installed on the other two side walls of the support groove, a matched adjusting screw is provided with the nut, one end of the adjusting screw located inside the support groove is provided with a limiting plate abutting against the adjusting roller, and one end of the adjusting screw located outside the support groove is provided with a rotating handle.

[0011] Further, one side of the limiting plate close to the adjusting roller is sequentially provided with a rubber pad and an anti-skid pad.

[0012] Further, the periphery of the pile basic body is provided with an auxiliary support beam, the height of the auxiliary support beam is the same as the height of the top end of the jack, and the top end of the support beam is provided with a buffer pad.

[0013] The utility model discloses the beneficial effect of:

[0014] In actual use scene, in the installation process of counterweight, when the gravity center of the counterweight is not adjusted, the limiting component can be loosened, a certain external force is applied to the side surface of the counterweight, the adjusting roller can assist the counterweight to fine adjustment position in the free state, and the adjusting roller is locked after the adjustment is completed and the limiting component is fixed again;The whole adjusting process is relatively simple, and no electronic equipment is involved in the adjusting structure, so that unnecessary outdoor loss is reduced.The utility model is convenient and fast to adjust, simple and stable in structure, reduces the use of electronic equipment, and is more suitable for outdoor environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole cross section structure schematic diagram of the utility model;

[0016] Figure 2This is a schematic diagram of the structure of the adjustment component of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a cross-sectional structural diagram of the setting and adjustment component of this utility model. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0020] like Figures 1-4 As shown, this utility model provides a static load tester for pile foundations, including a pile foundation body 1 and a static load tester body. The static load tester body includes a pressure sensor and a displacement sensor. The pile foundation body 1 is provided with a jack 2 and a pressure sensor indirectly connected to the jack. The upper end of the jack 2 is provided with a load-bearing plate 4 for supporting a counterweight 3. An adjustment component 5 for fine-tuning the position of the counterweight 3 and a limiting component 6 for preventing the counterweight 3 from moving are provided between the load-bearing plate 4 and the counterweight 3. The adjustment component 5 includes a support groove 51 detachably connected to the load-bearing plate 4. A plurality of adjusting rollers 52 are rolled in the support groove 51. Roller shafts 53 are fixedly connected to both ends of the adjusting rollers 52. Guide grooves 54 are opened on the two side walls of the support groove 51 corresponding to the roller shafts 53. The limiting component 6 is movably installed on the support groove 51.

[0021] In this embodiment, during the installation of the counterweight 3, if the center of gravity of the counterweight 3 is found to be incorrect, the limiting component 6 can be loosened, and a certain external force can be applied to the side of the counterweight 3. The adjusting roller 52, in its free state, can assist the counterweight 3 in making fine adjustments to its position. After the adjustment is completed, the limiting component 6 is fixed again to lock the adjusting roller 52. The entire adjustment process is relatively simple, and the adjustment structure does not involve electronic equipment, reducing unnecessary outdoor wear and tear. This static load tester is convenient and quick to adjust, has a simple and stable structure, reduces the use of electronic equipment, and is more suitable for outdoor environments.

[0022] like Figure 2 As shown, the surface of the adjusting roller 52 is provided with an anti-slip layer; in this embodiment, the surface of the adjusting roller 52 is treated with an anti-slip layer, which can better drive the counterweight 3 to move. For example, the anti-slip layer can be obtained by frosting.

[0023] like Figure 2As shown, the diameter of the adjusting roller 52 is greater than the inner groove height of the support groove 51 by 3-10mm; in this embodiment, the adjusting roller 52 is higher than the support groove 51 to facilitate contact with the counterweight 3, but should not be too high, and should also not be too small in consideration of stability and wear, and the optimal difference is 3-10mm according to actual use experience.

[0024] As shown in the figure, Figure 2 As shown, the limiting assembly 6 includes at least four groups, each group of limiting assembly includes a nut 61 fixedly installed on the other two side walls of the support groove 51, and a adjusting screw 62 is provided in matching with the nut, one end of the adjusting screw 62 located inside the support groove 51 is provided with a limiting plate 63 abutting against the adjusting roller, and the other end of the adjusting screw 62 located outside the support groove 51 is provided with a rotating handle 64; in this embodiment, the limiting and releasing of the limiting control only need to operate the rotating handle 64, and the rotating mode can be manual or with the aid of other power equipment, and the four groups of limiting assembly 6 are located on both sides of the adjusting roller 52, at least two groups are arranged on each side, one above the other, to increase the fixed point and expand the range of action, and the limiting effect is enhanced, and the adjustment is more flexible and convenient.

[0025] As shown in the figure, Figure 4 As shown, one side of the limiting plate 63 close to the adjusting roller 52 is provided with a rubber pad 65 and an anti-skid pad 66 in sequence; in this embodiment, the rubber pad 65 is provided to adapt to the change of environmental temperature by using the thermal expansion and contraction and the elastic characteristics, and the rubber pad 65 is compressed to the maximum extent in the limiting state, so that the loosening of the limiting caused by material deformation is effectively prevented, and the anti-skid pad 66 is provided to increase the friction force with the adjusting roller 52 and enhance the limiting stability.

[0026] As shown in the figure, Figure 1 As shown, the periphery of the pile basic body 1 is provided with an auxiliary support beam 11, the height of the auxiliary support beam 11 is the same as the height of the top end of the jack 2, and the top end of the support beam 11 is provided with a buffer pad 12; in this embodiment, the support beam 11 is used for auxiliary support to prevent the counterweight 3 from falling by a large amplitude, and the buffer pad 12 prevents impact damage to the material.

[0027] All the technical features in this embodiment can be modified in appearance according to actual needs.

[0028] The above embodiment is a preferred implementation scheme of the utility model, and the utility model can also be implemented in other ways without departing from the technical scheme concept, and any obvious replacement within the scope of the utility model is within the protection scope of the utility model.

Claims

1. A static load detector for pile foundation, comprising a pile foundation body (1) and a static load detector body, the static load detector body comprising a pressure sensor and a displacement sensor, a jack (2) is arranged on the pile foundation body (1), and the pressure sensor is indirectly connected with the jack, characterized in that: The upper end of the jack (2) is provided with a load bearing plate (4) for supporting a counterweight (3), and an adjusting assembly (5) for fine adjustment of the position of the counterweight (3) and a limiting assembly (6) for preventing the movement of the counterweight (3) are arranged between the load bearing plate (4) and the counterweight (3); The adjusting assembly (5) comprises a support groove (51) detachably connected with the load bearing plate (4), a plurality of adjusting rollers (52) are rollingly installed in the support groove (51), and roller shafts (53) are fixedly connected to both ends of the adjusting rollers (52); and guide grooves (54) corresponding to the roller shafts (53) are formed in two side walls of the support groove (51). The limiting assembly (6) is movably installed on the support groove (51).

2. The static load detector for pile foundation according to claim 1, characterized in that: The surface of the adjusting roller (52) is provided with an anti-skid layer.

3. The static load detector for pile foundation according to claim 1, characterized in that: The diameter of the adjusting roller (52) is greater than the inner groove height of the support groove (51) by 3-10 mm.

4. The static load detector for pile foundation according to claim 1, characterized in that: The limiting assembly (6) comprises at least four groups, each group of limiting assembly comprises a nut (61) fixedly installed on the other two side walls of the support groove (51), a matched adjusting screw (62) is arranged on the nut, one end of the adjusting screw (62) located inside the support groove (51) is provided with a limiting plate (63) abutting against the adjusting roller, and one end of the adjusting screw (62) located outside the support groove (51) is provided with a rotating handle (64).

5. The static load detector for pile foundation according to claim 4, characterized in that: The limiting plate (63) is provided with a rubber pad (65) and an anti-skid pad (66) in sequence on the side close to the adjusting roller (52).

6. The static load detector for pile foundation according to claim 1, characterized in that: The periphery of the pile basic body (1) is provided with an auxiliary support beam (11), the height of the auxiliary support beam (11) is the same as the height of the top end of the jack (2), and the top end of the support beam (11) is provided with a buffer pad (12).

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