Pile head connecting machine for single-pile vertical uplift static load test

Abstract

The utility model discloses a pile head connecting machine for a single pile vertical anti-pulling static load test, which comprises a first lantern ring, a plurality of groups of clamping mechanisms are arranged in the first lantern ring, an auxiliary component is fixedly mounted on the upper surface of the first lantern ring and used for clamping and connecting a pile head, four groups of handles are fixedly mounted on the outer surface of the auxiliary component, and the handles are fixedly mounted on the outer surface of the first lantern ring. The four groups of handles are arranged at equal intervals, and each handle is composed of a handheld part and a hoisting part; and the limiting mechanism is movably installed on the upper surface of the auxiliary assembly, and the limiting mechanism is connected with the first lantern ring and the auxiliary assembly in a clamped mode. The outer surface of the pile head is fixed twice, the fixing range of the pile head is enlarged, the clamping effect and the use safety are improved, after being fixed, the auxiliary assembly and the limiting mechanism are further limited through the limiting mechanism, and the clamping effect is improved. And the firmness of the auxiliary assembly and the clamping mechanism is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile head connection machines, in particular to a pile head connection machine for a single pile vertical pull-out static load test. Background Art

[0002] In order to ensure the quality of pile foundation engineering, a vertical static pull-out load test is carried out on a single pile during the pile foundation construction process to test the bearing capacity of the single pile, referred to as pull-out pile. The accuracy and authenticity of the pull-out bearing capacity test results and data are of vital importance to the quality assurance of the project. There are many factors that affect the pull-out force test results of pull-out piles, mainly the configuration of the reaction device, the pile head connection machine and other equipment.

[0003] However, there are some problems with the prior art: the existing pile head connection machine can generally only limit the pile head once. When lifting, if it is not firmly fixed, it is easy to slide. In addition, the existing pile head connection machine does not have an auxiliary limiting mechanism. When fixing, it cannot increase the fixing range of the outer surface of the pile head, resulting in instability, inaccurate detection, and affecting the test. Therefore, we propose a pile head connection machine for a single pile vertical pull-out static load test. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a pile head connection machine for a single pile vertical pull-out static load test. Through the coordinated use of an auxiliary component and a clamping mechanism, the outer surface of the pile head is fixed twice to increase the fixing range of the pile head, thereby achieving improved clamping effect and safety of use. The limiting mechanism, when the auxiliary component and the limiting mechanism are fixed, the limiting mechanism is used to further limit the two, so as to improve the firmness of the auxiliary component and the clamping mechanism.

[0005] The utility model is realized in that a pile head connection machine for a single pile vertical pull-out static load test comprises:

[0006] A first ring, wherein a plurality of clamping mechanisms are arranged inside the first ring, an auxiliary component is fixedly mounted on the upper surface of the first ring for clamping and connecting the pile head, and four groups of handles are fixedly mounted on the outer surface of the auxiliary component, the four groups of handles are equidistantly arranged, and the handles are composed of a gripping portion and a hoisting portion;

[0007] The limiting mechanism is movably mounted on the upper surface of the auxiliary component, and the limiting mechanism is clamped with the first ring and the auxiliary component.

[0008] Optionally, the clamping mechanism includes a first clamping plate and a jack, the jack is detachably mounted on the outer surface of the first ring, the first clamping plate is arranged on the inner side of the first ring, and one end of the jack piston rod is fixedly mounted on one side of the first clamping plate.

[0009] Optionally, the auxiliary component includes a protective shell, which is fixedly mounted on the upper surface of the first ring, and a second clamping plate is movably mounted in the protective shell, and one end of the second clamping plate is arranged to correspond to one end of the first clamping plate in the upper and lower directions.

[0010] Optionally, a threaded sleeve is fixedly mounted on the outer side of the protective shell, a threaded rod is threadedly connected to the inner thread of the threaded sleeve, a rotating wheel is fixedly mounted on one end of the threaded rod, and the other end of the threaded rod is rotatably mounted on one side of the second clamping plate.

[0011] Optionally, the limiting mechanism includes a second ring, a plurality of telescopic rods are arranged on the outside of the second ring, a movable plate is arranged at one end of the telescopic rod, limiting rods are fixedly installed at both ends of one side of the movable plate, and the limiting rods are slidably installed in the second ring.

[0012] Optionally, columns are fixedly installed at both ends of the lower surface of the movable plate, a through hole is opened on the upper surface of the second clamping plate, the columns are inserted into the through hole, and openings are opened at both ends of the upper surface of the first clamping plate, and the openings are arranged corresponding to the columns.

[0013] Optionally, the handle comprises a long rod, one end of which is fixedly mounted on the protective shell, a slot is provided on one end of the long rod, a limit block is fixedly mounted above the middle of the slot, and an anti-slip sleeve is fixedly mounted on the other end of the long rod.

[0014] Optionally, a limit plate is slidably installed on the outer surface of the long rod, a mounting plate is fixedly installed at one end of the long rod, guide columns are fixedly installed at both ends of one side of the mounting plate, one end of the guide column is inserted into one end of the limit plate, and a fixing nut is fixedly installed at one end of the guide column.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the coordinated use of the auxiliary components and the clamping mechanism provided in the utility model, when in use, the outer surface of the pile head is fixed twice by the two to increase the fixing range of the pile head, thereby achieving improved clamping effect and safety of use.

[0017] 2. Through the limiting mechanism provided in the utility model, after the auxiliary component and the limiting mechanism are fixed, the limiting mechanism is used to further limit the two, thereby improving the firmness of the auxiliary component and the clamping mechanism.

[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram provided by the utility model;

[0020] Figure 2 It is a schematic diagram of the limiting mechanism provided by the utility model;

[0021] Figure 3 It is a schematic diagram of the auxiliary components provided by the utility model;

[0022] Figure 4 It is a schematic diagram of the clamping mechanism provided by the utility model;

[0023] Figure 5 It is a schematic diagram of a handle provided by the utility model.

[0024] In the figure: 1. first ring; 2. auxiliary component; 201. protective shell; 202. threaded rod; 203. second clamping plate; 204. threaded sleeve; 3. limiting mechanism; 301. second ring; 302. column; 303. limiting rod; 304. movable plate; 305. telescopic rod; 4. handle; 401. long rod; 402. anti-slip sleeve; 403. mounting plate; 404. limiting plate; 405. guide column; 406. notch; 407. limiting block; 408. fixing nut; 5. clamping mechanism; 501. first clamping plate; 502. jack; 503. orifice; 6. cylinder. DETAILED DESCRIPTION

[0025] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0031] like Figures 1 to 5As shown, the embodiment of the utility model provides a pile head connection machine for a single pile vertical pull-out static load test, comprising:

[0032] A first ring 1, wherein multiple groups of clamping mechanisms 5 are arranged inside the first ring 1, an auxiliary component 2 is fixedly installed on the upper surface of the first ring 1 for clamping and connecting the pile head, and four groups of handles 4 are fixedly installed on the outer surface of the auxiliary component 2, and the four groups of handles 4 are equidistantly arranged, and the handles 4 are composed of a hand grip and a hoisting part; a limiting mechanism 3, wherein the limiting mechanism 3 is movably installed on the upper surface of the auxiliary component 2, and the limiting mechanism 3 is clamped with the first ring 1 and the auxiliary component 2;

[0033] Specifically, Figures 1 to 3 As shown, when in use, the first ring 1 is sleeved on the surface of the pile head, and then the multiple groups of clamping mechanisms 5 are started for clamping, and the first ring 1 is fixed on the outer surface of the pile head. Then the staff rotates the auxiliary component 2 again to limit the pile head for the second time, and then starts the limiting mechanism 3, so that one end of the limiting mechanism 3 is inserted into the clamping mechanism 5, so that the clamping mechanism 5 and the auxiliary component 2 are fixed together, and the two are limited and fixed, so as to improve the clamping effect of the clamping mechanism 5 and the auxiliary component 2, reduce the looseness, thereby improving the connection firmness between the connecting machine and the pile head, avoiding sliding, affecting the test effect, and improving safety.

[0034] Four groups of handles 4 are equidistantly arranged on the outer surface of the auxiliary component 2, so that after the connection machine and the pile head are fixed, the hook is inserted into the lifting part at one end of the handle 4, and the hook is fixed by the lifting part. Then, the vertical pull-out static load test of the single pile is carried out by the crane, thereby achieving the effect of convenient use. At the same time, the distances between the four groups of handles 4 are the same, and they are arranged opposite to each other, which is more stable during the lifting process.

[0035] Furthermore, the clamping mechanism 5 includes a first clamping plate 501 and a jack 502, the jack 502 is detachably mounted on the outer surface of the first sleeve 1, the first clamping plate 501 is arranged on the inner side of the first sleeve 1, and one end of the piston rod of the jack 502 is fixedly mounted on one side of the first clamping plate 501;

[0036] Specifically, Figure 1 and Figure 4 As shown, the jack 502 is started to drive the first clamping plate 501 to slide inward to clamp and fix the pile head, so that the first ring 1 is connected to the outer surface of the pile head, completing the first fixation.

[0037] Furthermore, the auxiliary component 2 includes a protective shell 201, which is fixedly mounted on the upper surface of the first collar 1, and a second clamping plate 203 is movably mounted in the protective shell 201, and one end of the second clamping plate 203 is arranged in correspondence with one end of the first clamping plate 501; a threaded sleeve 204 is fixedly mounted on the outer side of the protective shell 201, and a threaded rod 202 is connected to the inner thread of the threaded sleeve 204, and a rotating wheel is fixedly mounted on one end of the threaded rod 202, and the other end of the threaded rod 202 is rotatably mounted on one side of the second clamping plate 203;

[0038] Specifically, Figures 1 to 3 As shown, after the first fixation is completed, the rotating wheel is then rotated to drive the threaded rod 202 to rotate in the threaded sleeve 204, thereby driving the second clamping plate 203 to slide inward and fix the outer surface of the pile head for the second time, thereby achieving the goal of increasing the clamping range of the pile head surface through two clamping fixations, thereby improving the fault tolerance rate and reducing the risk of accidents.

[0039] Further, the limiting mechanism 3 includes a second ring 301, a plurality of telescopic rods 305 are arranged outside the second ring 301, a movable plate 304 is arranged at one end of the telescopic rod 305, and both ends of one side of the movable plate 304 are fixedly installed with limiting rods 303, and the limiting rods 303 are slidably installed in the second ring 301; columns 302 are fixedly installed at both ends of the lower surface of the movable plate 304, a through hole is opened on the upper surface of the second clamping plate 203, and the column 302 is inserted into the through hole, and both ends of the upper surface of the first clamping plate 501 are opened with openings 503, and the openings 503 are arranged corresponding to the columns 302;

[0040] Specifically, Figures 1 to 3 As shown, after the two fixations are completed, the cylinder 6 between the second ring 301 and the protective shell 201 is started to drive the second ring 301 to slide downward, so that the inner second clamping plate 203 slides along, and the column 302 is inserted into the hole 503 on the upper surface of the first clamping plate 501 to limit the overall position, thereby improving stability during use.

[0041] Further, the handle 4 includes a long rod 401, one end of the long rod 401 is fixedly mounted on the protective housing 201, a notch 406 is provided on one end of the long rod 401, a limit block 407 is fixedly mounted above the middle of the notch 406, and an anti-slip sleeve 402 is fixedly mounted on the other end of the long rod 401; a limit plate 404 is slidably mounted on the outer surface of the long rod 401, a mounting plate 403 is fixedly mounted on one end of the long rod 401, guide columns 405 are fixedly mounted on both ends of one side of the mounting plate 403, one end of the guide column 405 is inserted into one end of the limit plate 404, and a fixing nut 408 is fixedly mounted on one end of the guide column 405;

[0042] Specifically, Figure 5As shown, the front end of the hook passes through the slot 406 so that the middle notch of the hook hooks the limit block 407, and then the limit plate 404 is slid so that the limit plate 404 fits with the front end of the hook, and then the fixing nut 408 is screwed to fix the limit plate 404 so that it cannot move, thereby improving the firmness during lifting and making it more stable during lifting.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pile head connection machine for a single pile vertical pull-out static load test, characterized in that: include: A first ring (1), wherein a plurality of clamping mechanisms (5) are arranged inside the first ring (1), wherein the clamping mechanisms (5) include a first clamping plate (501) and a jack (502), wherein the jack (502) is detachably mounted on the outer surface of the first ring (1), wherein the first clamping plate (501) is arranged on the inner side of the first ring (1), wherein one end of the piston rod of the jack (502) is fixedly mounted on one side of the first clamping plate (501), and an auxiliary component (2) is fixedly mounted on the upper surface of the first ring (1), wherein the auxiliary component (2) is The auxiliary component (2) comprises a protective shell (201), the protective shell (201) is fixedly mounted on the upper surface of the first ring (1), a second clamping plate (203) is movably mounted in the protective shell (201), one end of the second clamping plate (203) is arranged in correspondence with one end of the first clamping plate (501) in the upper and lower directions, so as to be used for clamping and connecting the pile head, and four groups of handles (4) are fixedly mounted on the outer surface of the auxiliary component (2), the four groups of handles (4) are arranged at equal distances, and the handles (4) are composed of a gripping portion and a lifting portion; A limiting mechanism (3), wherein the limiting mechanism (3) is movably mounted on the upper surface of the auxiliary component (2), the limiting mechanism (3) is clamped with the first sleeve ring (1) and the auxiliary component (2), the limiting mechanism (3) comprises a second sleeve ring (301), a plurality of groups of telescopic rods (305) are arranged on the outer side of the second sleeve ring (301), a movable plate (304) is arranged at one end of the telescopic rod (305), limiting rods (303) are fixedly mounted at both ends of one side of the movable plate (304), and the limiting rods (303) are slidably mounted in the second sleeve ring (301).

2. The pile head connection machine for a single pile vertical pull-out static load test according to claim 1, characterized in that: A threaded sleeve (204) is fixedly mounted inside the outer side of the protective shell (201); a threaded rod (202) is internally threadedly connected to the threaded sleeve (204); a rotating wheel is fixedly mounted on one end of the threaded rod (202); and the other end of the threaded rod (202) is rotatably mounted on one side of the second clamping plate (203).

3. The pile head connection machine for a single pile vertical pull-out static load test according to claim 2, characterized in that: The two ends of the lower surface of the movable plate (304) are fixedly mounted with columns (302); the upper surface of the second clamping plate (203) is provided with a through hole, and the column (302) is inserted into the through hole; the two ends of the upper surface of the first clamping plate (501) are provided with openings (503), and the openings (503) are arranged corresponding to the columns (302).

4. The pile head connection machine for a single pile vertical pull-out static load test according to claim 3, characterized in that: The handle (4) comprises a long rod (401), one end of the long rod (401) is fixedly mounted on the protective shell (201), a notch (406) is provided on one end of the long rod (401), a limit block (407) is fixedly mounted above the middle of the notch (406), and an anti-slip sleeve (402) is fixedly mounted on the other end of the long rod (401).

5. The pile head connection machine for a single pile vertical pull-out static load test according to claim 4, characterized in that: A limit plate (404) is slidably mounted on the outer surface of the long rod (401); a mounting plate (403) is fixedly mounted on one end of the long rod (401); guide columns (405) are fixedly mounted on both ends of one side of the mounting plate (403); one end of the guide column (405) is inserted into one end of the limit plate (404); and a fixing nut (408) is fixedly mounted on one end of the guide column (405).

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