Device for rapidly detecting drawing force of anchor bar pile

Abstract

The utility model discloses an anchor bar pile drawing force rapid detection device, belongs to the technical field of anchor bar pile drawing force detection devices, and solves the problems that in the prior art, an anchor bar fixing structure is arranged on one side of a sleeve and cannot push an anchor bar to be in contact with the inner wall of the sleeve on the opposite side when the anchor bar is fixed, and the anchor bar cannot be pushed to be in contact with the inner wall of the sleeve on the opposite side. Or a structure for fixing the anchor bar can push the anchor bar to be in contact with the inner wall of the sleeve on the opposite side, so that the clamp is fixed on the anchor bar, but the anchor bar is easy to deform, and the drawing effect of the anchor bar is influenced. The device comprises a hydraulic oil cylinder and a clamp for fixing the hydraulic oil cylinder on an anchor bar bundle, wherein the clamp comprises a sleeve, two clamping structures which are oppositely arranged on the sleeve and are used for clamping the anchor bar bundle, and an adjusting structure which is arranged on the sleeve and is used for synchronously adjusting the two clamping structures to clamp or loosen the anchor bar bundle. The device is used for rapidly detecting the drawing force of the anchor bar pile.

Description

TECHNICAL FIELD

[0001] The utility model relates to an anchor bar pile pulling force quick detection device for anchor bar pile pulling force quick detection belongs to anchor bar pile pulling force detection device technical field. BACKGROUND

[0002] The purpose of anchor bar pile pulling force detection is to ensure that the construction quality of anchor bar pile meets the design requirements and verifies its reliability in engineering structure. Specifically, through the pulling force detection, it can be verified whether the design parameters of anchor bar pile are reasonable, including the diameter, length, anchoring mode of anchor bar, the strength of mortar or concrete, etc. The detection can ensure that the construction quality of anchor bar pile meets the specification requirements, including the installation position, depth of anchor bar, the strength of anchoring agent and the bonding condition of anchor bar and base body. Through the pulling test, the safety performance of anchor bar pile in actual work can be evaluated to ensure that it will not be damaged when bearing the design load. The detection can determine the maximum pulling force that the anchor bar pile can bear to provide basis for structure design and construction, etc.

[0003] In the prior art, for the detection of a steel bar (or anchor bar), the common means is to set a hydraulic cylinder on the anchor bar, then set a clamp for fixation, after fixation, connect the high-pressure oil pipe with the hydraulic cylinder, open the power supply, and press the hydraulic rod through the hydraulic motor or manual rotating device, then record the data after reaching the predetermined value or being pulled off, finally loosen the pressurizing valve to complete the detection. For anchor bar pile, multiple anchor bars forming a bundle or multiple separated anchor bars are arranged thereon. For the anchor bar bundle on the anchor bar pile, it is regarded as a single anchor bar for pulling detection, and for the multiple separated anchor bars, each is individually subjected to pulling detection.

[0004] Existing anchor pile pull-out tests require multiple installations on the anchor bars, including the installation of hydraulic cylinders and clamps, which reduces testing efficiency. CN202121438532.5 discloses a clamp for rebar pull-out testing, which includes a sleeve with a central hole for the rebar to pass through. A clamping block is slidably connected to the inner wall of the sleeve to clamp the rebar. A pusher is threadedly connected to the outer wall of the sleeve to push the clamping block into the central hole of the sleeve, with the output end of the pusher movably abutting against the clamping block. This application also relates to a testing instrument for rebar pull-out testing, which includes the clamp described above and a hydraulic cylinder. The hydraulic cylinder includes a cylinder body and a hydraulic rod slidably connected to the cylinder body. An inlet / outlet valve is provided on the cylinder body for oil inlet and outlet. The output end of the hydraulic rod is fixedly connected to one end of the sleeve. The clamp can conveniently clamp the rebar during rebar pull-out testing and is suitable for different types and thicknesses of rebar, making it convenient to use. Although this method can simultaneously mount the hydraulic cylinder and clamp onto the reinforcing bar and quickly fix the clamp to the reinforcing bar, existing technologies have the following technical problems when performing pull-out tests on a bundle of anchor bars or a single anchor bar on an anchored pile:

[0005] 1. A structure for fixing anchor bars is provided on one side of the sleeve. When fixing the anchor bars, the structure for fixing anchor bars may not be able to push the anchor bars into contact with the inner wall of the sleeve on the opposite side, thus causing the problem of not being able to fix the clamp on the anchor bars. Alternatively, the structure for fixing anchor bars may be able to push the anchor bars into contact with the inner wall of the sleeve on the opposite side, so that the clamp is fixed on the anchor bars, but it may easily cause deformation of the anchor bars, thus affecting the pull-out effect of the anchor bars.

[0006] 2. The fixed connection between the hydraulic cylinder and the clamp is prone to damage and high replacement costs. Utility Model Content

[0007] The purpose of this utility model is to provide a rapid detection device for the pull-out force of anchor piles, which solves the problem that in the existing technology, when the anchor is fixed on one side of the sleeve, the structure of fixing the anchor is often unable to push the anchor to contact the inner wall of the sleeve on the opposite side, thus making it impossible to fix the clamp on the anchor. Alternatively, the structure of fixing the anchor can push the anchor to contact the inner wall of the sleeve on the opposite side, so that the clamp is fixed on the anchor, but it is easy to cause deformation of the anchor, thus affecting the pull-out effect of the anchor.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A rapid detection device for the pull-out force of anchor piles includes a hydraulic cylinder, a clamp that fixes the hydraulic cylinder to the anchor bundle, the clamp including a sleeve, two clamping structures that are arranged opposite to each other on the sleeve to clamp the anchor bundle, and an adjustment structure arranged on the sleeve to synchronously adjust the clamping or releasing of the anchor bundle by the two clamping structures.

[0010] Further, a through hole is oppositely arranged on the sleeve, and a sliding groove is arranged on opposite sides of the through hole;

[0011] The clamping structure comprises a sliding rod penetrating through the through hole, a sliding block arranged on the sliding rod and matched with the sliding groove, an arc-shaped clamping piece connected with the sliding rod on one side in the sleeve, and a connecting block connected with the sliding rod on the other side out of the sleeve, and a threaded hole is arranged on the connecting block.

[0012] Further, a polygonal insertion slot is arranged on the sliding rod, a plurality of insertion holes are arranged in the insertion slot, an insertion plug matched with the insertion slot is arranged on the arc-shaped clamping piece, and an elastic protrusion matched with the insertion hole is arranged on the insertion plug.

[0013] Further, a slot hole is arranged on the insertion plug, the elastic protrusion comprises a reset spring arranged in the slot hole, and an arc-shaped protrusion connected with the reset spring.

[0014] Further, a placing groove for placing the arc-shaped clamping piece is arranged in the sleeve.

[0015] Further, the adjusting structure comprises a bidirectional threaded rod matched with the threaded holes on the two clamping structures, and a rotating handle arranged on the bidirectional threaded rod.

[0016] Further, a threaded connecting head is arranged on the hydraulic rod of the hydraulic oil cylinder.

[0017] A female threaded sleeve is arranged on the sleeve at the matched end of the hydraulic oil cylinder, and the inner diameter of the female threaded sleeve is larger than the inner diameter of the sleeve.

[0018] Compared with the prior art, the advantages of the utility model lie in that:

[0019] Firstly, the utility model can quickly adjust the two clamping structures to approach or move away from the anchor bars or anchor bar bundles through the adjusting structure, so that the center clamping of the anchor bars or anchor bar bundles can be effectively ensured, the problem that the clamp cannot be fixed on the anchor bars or anchor bar bundles is avoided, and the deformation of the anchor bars or anchor bar bundles caused in the clamping process is effectively avoided, so that the pulling effect of the anchor bars or anchor bar bundles is affected.

[0020] Secondly, in the utility model, the rotating handle in the rotating adjusting structure drives the bidirectional threaded rod to be matched with the threaded holes in the two clamping structures, so that the sliding rod and the sliding block slide along the through hole and the sliding groove to drive the two arc-shaped clamping pieces to approach or move away from each other, so that the purpose of synchronously adjusting the two clamping structures is achieved, the clamping or loosening operation is convenient, the center clamping of the anchor bars or anchor bar bundles is facilitated, and the detection efficiency is improved.

[0021] Three, the utility model discloses setting the polygon slot on the slide bar, and setting the jack on it, and setting the plug and the elastic lug that cooperate with the slot and the jack on the arc clamping piece, and the purpose is convenient to replace arc clamping piece or slide bar etc.

[0022] Four, the utility model discloses setting the placing groove of placing arc clamping piece on the sleeve, and the purpose is convenient to store arc clamping piece to avoid affecting anchor bar or anchor bar bundle to set on the sleeve;

[0023] Five, the utility model discloses setting a threaded connector on the hydraulic rod of hydraulic oil cylinder and the inner thread sleeve set on the sleeve, and the inner diameter of inner thread sleeve is greater than the inner diameter of sleeve, not only guaranteeing that hydraulic oil cylinder and sleeve are movably fixedly connected, reducing damage replacement cost, but also avoiding that inner thread sleeve is stressed, and the end of sleeve receives pulling force. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment, and should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0025] Figure 1 It is the structural schematic diagram of the utility model;

[0026] Figure 2 It is the structural schematic diagram of the utility model in hydraulic oil cylinder and clamp separation;

[0027] Figure 3 It is the structural schematic diagram of the utility model in hydraulic oil cylinder;

[0028] Figure 4 It is the structural schematic diagram of the utility model in sleeve being cut into two parts;

[0029] Figure 5 It is the partial structural schematic diagram of the utility model in clamping structure and adjusting structure cooperation;

[0030] Figure 6 It is the structural schematic diagram of the utility model in part plug;

[0031] In the figure: 1-hydraulic cylinder, 2-clamp, 3-sleeve, 4-clamping structure, 5-adjusting structure, 6-through hole, 7-sliding groove, 8-sliding rod, 9-sliding block, 10-arc-shaped clamping piece, 11-connection block, 12-threaded hole, 13-slot, 14-socket, 15-plug, 16-elastic protrusion, 17-groove, 18-return spring, 19-arc-shaped protrusion, 20-placing groove, 21-two-way threaded rod, 22-rotary handle, 23-threaded connector, 24-internal threaded sleeve. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0034] In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0035] In addition, if the terms "first", "second", "third" and the like appear, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] In the description of the utility model, still need to explain, unless another explicit provision and limitation, if appear the term "arrangement", "installation", "link", "connection" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For the ordinary skill in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.

[0038] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0039] Embodiment 1

[0040] In order to solve the structure of the prior art on one side of the sleeve sets the fixed anchor bar, when the fixed anchor bar, the structure of the fixed anchor bar is easy to push the anchor bar and the inner wall of the opposite side of the sleeve, so as to cause the problem that the clamp cannot be fixed on the anchor bar, or the structure of the fixed anchor bar can push the anchor bar and the inner wall of the opposite side of the sleeve, so that the clamp is fixed on the anchor bar, but easy to cause the anchor bar deformation, thereby affecting the pulling effect of the anchor bar. Figures 1-6 As shown, a kind of anchor bar pile pulling force quick detection device is provided, including hydraulic cylinder 1, clamp 2 of being fixed in the anchor bar bundle by hydraulic cylinder 1, clamp 2 includes sleeve 3, two clamping structures 4 of being set on sleeve 3 and clamping anchor bar bundle, and adjustment structure 5 of being set on sleeve 3 and synchronously adjusting two clamping structures 4 clamping or loosening anchor bar bundle.

[0041] In practice, by adjusting structure 5, two clamping structures 4 are adjusted to be far away from each other, then hydraulic cylinder 1 and clamp 2 are sleeved on anchor bar bundle (which can be anchor bar bundle composed of 3 anchor plates), and two clamping structures 4 are adjusted to be close to each other by adjusting structure 5 to be clamped on anchor bar bundle, after fixing, high-pressure oil pipe is connected with hydraulic cylinder, power is turned on, and pressure is applied to hydraulic rod by hydraulic motor or manual rotating device, data can be recorded after reaching predetermined value or being pulled off, and finally the detection is completed by loosening the pressurizing valve. In the embodiment, the two clamping structures are adjusted to be close or far away from each other by the adjusting structure to clamp or release the anchor bar or anchor bar bundle, which can effectively ensure the center clamping of the anchor bar or anchor bar bundle. Not only the problem that the clamp cannot be fixed on the anchor bar or anchor bar bundle is avoided, but also the problem that the anchor bar or anchor bar bundle is deformed during clamping, thereby affecting the pulling effect of the anchor bar or anchor bar bundle, is effectively avoided.

[0042] Embodiment 2

[0043] On the basis of embodiment 1, the sleeve 3 is oppositely provided with a through hole 6, and a sliding slot 7 is arranged on the opposite side of the through hole 6; the clamping structure 4 comprises a sliding rod 8 penetrating through the through hole 6, a sliding block 9 arranged on the sliding rod 8 and matched with the sliding slot 7, an arc-shaped clamping piece 10 connected with the sliding rod 8 on one side in the sleeve 3, and a connecting block 11 connected with the sliding rod 8 on the other side out of the sleeve 3, and a threaded hole 12 is arranged on the connecting block 11.

[0044] The adjusting structure 5 comprises a two-way threaded rod 21 matched with the threaded holes 12 on the two clamping structures 4, and a rotating handle 22 arranged on the two-way threaded rod 21. With the above structure, the adjusting structure 5 can also be separated from the clamping structure.

[0045] In practice, the two-way threaded rod 21 is positively rotated by the rotating handle, so that the two connecting blocks 11 are threadedly matched with the two-way threaded rod 21, and the sliding rod and the sliding block are slidably matched with the through hole and the sliding slot to drive the two arc-shaped clamping pieces 10 to move away from each other in opposite directions, so that the anchor bar bundle can pass between the two arc-shaped clamping pieces 10. At this time, the clamp is penetrated through the anchor bar bundle, and then the two-way threaded rod 21 is reversely rotated by the rotating handle, so that the two arc-shaped clamping pieces 10 are close to each other to clamp the anchor bar bundle. In this embodiment, the rotating handle in the adjusting structure is rotated to drive the two-way threaded rod to be matched with the threaded holes in the two clamping structures, so that the sliding rod and the sliding block are slid along the through hole and the sliding slot to drive the two arc-shaped clamping pieces to be close to or far away from each other, thereby achieving the purpose of synchronously adjusting the two clamping structures. Not only is the clamping or unclamping operation convenient, but also the anchor bar or anchor bar bundle can be conveniently clamped in the middle, and the detection efficiency can be improved.

[0046] Embodiment 3

[0047] On the basis of embodiment 2, a polygonal insertion slot 13 is arranged on the sliding rod 8, a plurality of insertion holes 14 are arranged in the insertion slot 13, an insertion head 15 matched with the insertion slot 13 is arranged on the arc-shaped clamping piece 10, and elastic lugs 16 matched with the insertion holes 14 are arranged on the insertion head 15. A slot hole 17 is arranged on the insertion head 15, the elastic lugs 16 comprise a reset spring 18 arranged in the slot hole 17, and an arc-shaped lug 19 connected with the reset spring 18. The polygonal insertion slot is arranged on the sliding rod, the insertion holes are arranged on the insertion slot, the insertion head and the elastic lugs matched with the insertion slot and the insertion holes are arranged on the arc-shaped clamping piece, so as to facilitate replacement of the arc-shaped clamping piece or the sliding rod, and also facilitate quick positioning and butt joint of the sliding rod and the arc-shaped clamping piece when they are assembled, so as to effectively avoid the influence of positioning failure on clamping of the anchor bar or the anchor bar bundle.

[0048] In practice, the two arc-shaped clamping pieces can be separated by rotating the bidirectional threaded rod 21, and the two arc-shaped clamping pieces can be in contact with the inner wall of the sleeve. The rotation of the bidirectional threaded rod 21 causes the two arc-shaped clamping pieces to continue to separate. At this time, the force of the sleeve will prevent the two arc-shaped clamping pieces from continuing to separate, and at the same time, the force will act on the arc-shaped protrusion 19 to press the return spring, so as to achieve the purpose of dismounting the arc-shaped clamping piece. Of course, a tool can be inserted into the sleeve to pull the arc-shaped clamping piece away from the sliding rod. Conversely, a tool can be inserted into the sleeve to directly insert the arc-shaped clamping piece on the sliding rod.

[0049] Embodiment 4

[0050] On the basis of embodiment 3, the sleeve 3 is provided with a placing groove 20 for placing the arc-shaped clamping piece 10. The placing groove for placing the arc-shaped clamping piece is arranged on the sleeve, which is used to conveniently store the arc-shaped clamping piece, so as to avoid affecting the anchoring of the reinforcement or the anchoring of the reinforcement bundle on the sleeve. After the arc-shaped clamping piece is placed in the placing groove, the convex and concave surfaces are not formed, so as to effectively avoid the difficulty of the steel bar end on one side being low on the convex and concave surfaces and being difficult to pass through the sleeve. Of course, in practice, a support cylinder with an outer diameter matching the inner diameter of the sleeve can also be provided. When the arc-shaped clamping piece is installed on the sliding rod, the two arc-shaped clamping pieces can be placed in the corresponding placing grooves, and then the support cylinder is inserted into the sleeve. At this time, the bidirectional threaded rod can be rotated to make the two sliding rods close to each other, that is, the plug is inserted into the insertion slot, and the elastic protrusion is matched with the insertion hole.

[0051] Embodiment 5

[0052] On the basis of embodiment 4, a threaded connector 23 is arranged on the hydraulic rod of the hydraulic cylinder 1; and an inner threaded sleeve 24 is arranged on the sleeve 3 at the end matched with the hydraulic cylinder 1. The inner diameter of the inner threaded sleeve 24 is greater than the inner diameter of the sleeve 3. The threaded connector arranged on the hydraulic rod of the hydraulic cylinder is matched with the inner threaded sleeve arranged on the sleeve, and the inner diameter of the inner threaded sleeve is limited to be greater than the inner diameter of the sleeve. This not only ensures the connection between the hydraulic cylinder and the sleeve, but also reduces the cost of damage and replacement, and limits the stress on the inner threaded sleeve, so that the end of the sleeve bears the pulling force.

Claims

1. A device for rapid detection of the pulling force of an anchor pile, comprising a hydraulic cylinder (1), and a clamp (2) for fixing the hydraulic cylinder (1) on the anchor tendon, characterized in that, The clamp (2) comprises a sleeve (3), two clamping structures (4) oppositely arranged on the sleeve (3) to clamp the anchor bar bundle, and an adjusting structure (5) arranged on the sleeve (3) to synchronously adjust the two clamping structures (4) to clamp or release the anchor bar bundle.

2. The device for rapid detection of the pullout force of the reinforcement pile according to claim 1, characterized in that: The sleeve (3) oppositely has a through hole (6), and a sliding groove (7) is arranged on the opposite side of the through hole (6); The clamping structure (4) comprises a sliding rod (8) penetrating through the through hole (6), a sliding block (9) arranged on the sliding rod (8) and matched with the sliding groove (7), an arc-shaped clamping piece (10) connected with the sliding rod (8) on one side in the sleeve (3), and a connecting block (11) connected with the sliding rod (8) on the other side out of the sleeve (3), and a threaded hole (12) arranged on the connecting block (11).

3. The device for rapid detection of the pullout force of the reinforcement pile according to claim 2, characterized in that: The sliding rod (8) is provided with a polygonal insertion slot (13), a plurality of insertion holes (14) are arranged in the insertion slot (13), an insertion head (15) matched with the insertion slot (13) is arranged on the arc-shaped clamping piece (10), and an elastic protrusion (16) matched with the insertion hole (14) is arranged on the insertion head (15).

4. The device for rapid detection of the pullout force of the reinforcement pile according to claim 3, characterized in that: The insertion head (15) is provided with a slot hole (17), the elastic protrusion (16) comprises a reset spring (18) arranged in the slot hole (17), and an arc-shaped protrusion (19) connected with the reset spring (18).

5. The device for rapid detection of the pullout force of the reinforcement pile according to claim 2, characterized in that: The sleeve (3) is provided with a placing groove (20) for placing the arc-shaped clamping piece (10).

6. The device for rapid detection of the pullout force of the reinforcement pile according to claim 2, characterized in that: The adjusting structure (5) comprises a bidirectional threaded rod (21) matched with the threaded hole (12) on the two clamping structures (4), and a rotating handle (22) arranged on the bidirectional threaded rod (21).

7. The device for rapid detection of the pulling force of the reinforcement pile according to claim 1, characterized in that: A threaded connecting head (23) is arranged on the hydraulic rod of the hydraulic cylinder (1); A female threaded sleeve (24) is arranged on the sleeve (3) matched with the hydraulic cylinder (1), and the inner diameter of the female threaded sleeve (24) is larger than the inner diameter of the sleeve (3).

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