Pile head smoothing device for low strain detection of cast-in-place concrete pile

Abstract

The utility model discloses a pile head grinding device for low strain detection of a cast-in-place concrete pile, which comprises a front-end shell, the tail end of the front-end shell is of a rectangular cylindrical structure, and fixing components are arranged on the periphery of the tail end of the front-end shell; the side, away from the front end shell, of the fixing structure is connected with a holding tail shell. Wherein the fixing assembly is used for connecting the front end shell with the holding tail shell. By means of the fixing assembly, the outer shell of the pile head smoothing device can be disassembled more conveniently and quickly, meanwhile, the front end shell and the holding tail shell can be easily connected and fixed, frequent disassembly is not needed, and maintenance is easier and more convenient. And compared with a traditional device which possibly needs complicated disassembling steps, the maintenance efficiency of the pile head grinding device during low-strain detection on the cast-in-place concrete pile can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a pile head flattening device for low-strain detection of concrete cast-in-place piles. Background Art

[0002] Low strain testing of cast-in-place concrete piles is a method used to evaluate the deformation of cast-in-place concrete piles under load. In foundation engineering, cast-in-place concrete piles are usually used to bear the load of buildings or other structures and transfer the load to the underground bearing layer through the pile body. In order to ensure the safety and stability of the pile foundation, the strain of the pile body needs to be monitored and evaluated.

[0003] Low strain testing is a common method used to measure the small deformation of cast-in-place concrete piles under load. Strain gauges or sensors are usually used to measure the strain changes on the surface or inside the pile. These strain gauges or sensors can measure the strain of the pile in the vertical and horizontal directions, thus providing information about the deformation and stress of the pile.

[0004] Before low-strain testing of cast-in-place concrete piles, the pile head usually needs to be ground flat. This is because the pile head surface may be uneven, convex or have other irregular shapes, which will interfere with the installation and measurement of strain gauges or sensors and affect the accuracy of the test results.

[0005] The conventional pile head grinding device needs to disassemble its outer shell during routine maintenance, and the disassembly steps are relatively cumbersome, which affects the efficiency of daily maintenance. Therefore, a pile head grinding device for low-strain detection of concrete cast-in-place piles is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a pile head grinding device for low-strain detection of concrete bored piles, so as to solve the problem in the above-mentioned background technology that the traditional pile head grinding device needs to disassemble its outer shell during daily maintenance, and the disassembly steps are relatively cumbersome, which affects the efficiency of daily maintenance.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a pile head grinding device for low-strain detection of concrete cast-in-place piles, comprising a front end shell, the rear end of which is a rectangular cylindrical structure, and fixing components are arranged around the rear end of the front end shell;

[0008] A side of the fixing assembly away from the front end housing is connected with a gripping tail housing;

[0009] Wherein, the fixing assembly is used to connect the front end shell with the grip tail shell.

[0010] Preferably, the fixing assembly comprises a fixing pin connected to the rear end of the front housing, a receiving groove is provided on the upper portion of the fixing pin, and a fixing pin plate is slidably connected to the interior of the receiving groove.

[0011] Wherein, the fixing pin plate is used to limit and fix the grip tail shell.

[0012] Preferably, a guide column is disposed inside the receiving groove, and a spring is disposed on the periphery of the guide column, so that the fixing pin plate can elastically move on the periphery of the receiving groove through the spring.

[0013] Preferably, the upper and lower walls of the receiving groove are provided with guide grooves for fixing the linear movement of the pin plate.

[0014] Preferably, a column groove for inserting the guide column is opened inside the fixing pin plate, and the column groove matches the length of the fixing pin plate outside the fixing pin rod, so that the fixing pin plate is accommodated in the fixing pin rod.

[0015] Preferably, guide plates matching the guide grooves are provided on the upper and lower parts of the fixing pin plate.

[0016] Preferably, a channel for inserting a fixing pin is provided around one side of the gripping tail shell connected to the front end shell.

[0017] Preferably, a connecting plate is provided at the rear end of the front end shell, and the connecting plate cooperates with the front end of the holding tail shell so that the holding tail shell is connected to the rear end of the front end shell along the connecting plate.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model can disassemble the outer shell of the pile head grinding device more conveniently and quickly through the setting of the fixing assembly, and can easily connect and fix the front shell and the gripping tail shell without frequent disassembly, making maintenance easier. Compared with the traditional device that may require complicated disassembly steps, it can effectively improve the maintenance efficiency of the pile head grinding device when performing low-strain detection on concrete cast-in-place piles.

[0020] The maintenance process is more efficient due to simplified disassembly and fixing steps. Operators can complete maintenance work faster, saving time and labor costs.

[0021] The design of this device can reduce the risk of damage during the disassembly and installation of traditional devices. The connection method of the fixed components makes the disassembly and assembly of the device more stable and reduces the possibility of accidental damage.

[0022] The special structure of the device and the design of the fixing components help protect the front housing and the grip tail housing, reducing the risk of damage. By reducing damage to the device, its service life can be extended and the need for replacement and repair can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 It is a partial cross-sectional structural schematic diagram of an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the connection plate structure of an embodiment of the utility model;

[0026] Figure 4 Schematic diagram of a fixing pin plate according to an embodiment of the utility model.

[0027] In the figure: 1, front end shell; 2, fixing assembly; 201, fixing pin rod; 202, receiving groove; 203, fixing pin plate; 204, guide column; 205, spring; 206, guide groove; 207, column groove; 208, guide plate; 3, holding tail shell; 301, channel; 4, connecting plate. DETAILED DESCRIPTION

[0028] In order to solve the problem that the outer shell of the traditional pile head grinding device needs to be disassembled during daily maintenance, and the disassembly steps are relatively cumbersome, which affects the efficiency of daily maintenance, the embodiment of the utility model provides a pile head grinding device for low-strain detection of concrete bored piles. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 The utility model provides a pile head grinding device for low strain detection of concrete cast-in-place piles, comprising a front end housing 1, the rear end of the front end housing 1 is a rectangular cylindrical structure, and a fixing assembly 2 is arranged around the rear end of the front end housing 1; the fixing assembly 2 comprises a fixing pin rod 201 connected to the rear end of the front end housing 1, and a receiving groove 202 is provided on the upper part of the fixing pin rod 201, and a guide column 204 is arranged inside the receiving groove 202, and a spring 205 is arranged on the outer periphery of the guide column 204, so that the fixing pin plate 203 can move elastically on the outer periphery of the receiving groove 202 through the spring 205. The upper and lower walls of the receiving groove 202 are provided with guide grooves 206 for linear movement of the fixing pin plate 203.

[0030] The interior of the fixed pin plate 203 is provided with a column slot 207 for the guide column 204 to be inserted, and the column slot 207 matches the length of the fixed pin plate 203 outside the fixed pin rod 201, so that the fixed pin plate 203 is accommodated in the fixed pin rod 201. The upper and lower parts of the fixed pin plate 203 are both provided with guide plates 208 that match the guide slot 206.

[0031] A fixing pin plate 203 is slidably connected inside the receiving groove 202 , wherein the fixing pin plate 203 is used to restrict and fix the holding tail shell 3 .

[0032] The side of the fixing component 2 away from the front end shell 1 is connected with the gripping tail shell 3 ; wherein the fixing component 2 is used to connect the front end shell 1 with the gripping tail shell 3 .

[0033] A channel 301 for inserting the fixing pin 201 is formed around the side of the holding tail shell 3 connected to the front end shell 1 .

[0034] The tail end of the front end housing 1 is provided with a connection plate 4 , and the connection plate 4 cooperates with the front end of the holding tail housing 3 so that the holding tail housing 3 is connected to the tail end of the front end housing 1 along the connection plate 4 .

[0035] The working principle of the pile head grinding device for low-strain detection of concrete cast-in-place piles provided by the utility model is as follows: when disassembling, the fixing pin plate 203 located around the rear end of the front end shell 1 is pressed to make it move toward the receiving groove 202 side on the outer periphery of the guide column 204 through the column groove 207 until the fixing pin plate 203 moves to the inside of the receiving groove 202, at this time, the holding tail shell 3 is pulled out to make it move outward along the connecting plate 4, and the connection between the holding tail shell 3 and the front end shell 1 is released, and then it is disassembled, which is convenient for subsequent maintenance and repair work;

[0036] During installation, the fixing pin plate 203 around the rear end of the front housing 1 is pressed again until the fixing pin plate 203 moves into the receiving groove 202. The fixing pin plate 203 is pressed against the spring 205. The spring 205 is compressed to produce compression deformation and corresponding elastic force. At this time, the holding tail housing 3 is connected to one side of the front housing 1 through the connecting plate 4.

[0037] The channel 301 of the holding tail shell 3 squeezes the fixing pin plate 203 located on the outer periphery of the fixing pin rod 201, so that it moves along the connecting plate 4 to the side of the front end shell 1. The spring 205 is weakened by the force and releases the elastic force, pushing the fixing pin plate 203 out of the receiving groove 202 and snapping it onto the side of the channel 301 of the holding tail shell 3, connecting and buckling the holding tail shell 3 and the front end shell 1, thereby completing the assembly work.

[0038] 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 grinding device for low strain detection of concrete cast-in-place piles, characterized in that: The invention comprises a front end shell (1), the rear end of the front end shell (1) is a rectangular cylindrical structure, and a fixing assembly (2) is arranged around the rear end of the front end shell (1); the fixing assembly (2) comprises a fixing pin rod (201) connected to the rear end of the front end shell (1), a receiving groove (202) is provided on the upper part of the fixing pin rod (201), a fixing pin plate (203) is slidably connected inside the receiving groove (202), a guide column (204) is arranged inside the receiving groove (202), and a spring (205) is arranged on the outer periphery of the guide column (204), so that the fixing pin plate (203) can elastically move on the outer periphery of the receiving groove (202) through the spring (205); Wherein, the fixing pin plate (203) is used to restrict and fix the gripping tail shell (3); A side of the fixing component (2) away from the front end housing (1) is connected to a gripping tail housing (3); The fixing assembly (2) is used to connect the front end housing (1) to the gripping tail housing (3).

2. A pile head grinding device for low strain detection of concrete cast-in-place piles according to claim 1, characterized in that: The upper and lower walls of the receiving groove (202) are provided with guide grooves (206) for fixing the pin plate (203) to move linearly.

3. A pile head grinding device for low strain detection of concrete cast-in-place piles according to claim 2, characterized in that: The interior of the fixing pin plate (203) is provided with a column groove (207) for the guide column (204) to penetrate, and the column groove (207) matches the length of the fixing pin plate (203) outside the fixing pin rod (201), so that the fixing pin plate (203) is accommodated in the fixing pin rod (201).

4. A pile head grinding device for low strain detection of concrete cast-in-place piles according to claim 3, characterized in that: The upper and lower parts of the fixing pin plate (203) are both provided with guide plates (208) that match the guide grooves (206).

5. A pile head grinding device for low strain detection of concrete cast-in-place piles according to claim 4, characterized in that: A channel (301) for inserting a fixing pin (201) is provided around the side of the holding tail shell (3) connected to the front shell (1).

6. A pile head grinding device for low strain detection of concrete cast-in-place piles according to claim 5, characterized in that: The rear end of the front end housing (1) is provided with a connection plate (4), and the connection plate (4) cooperates with the front end of the gripping tail housing (3) so that the gripping tail housing (3) is connected to the rear end of the front end housing (1) along the connection plate (4).

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