CN217630143U

CN217630143U - Low strain detection excitation equipment for foundation pile

Info

Publication number: CN217630143U
Application number: CN202220896341.1U
Authority: CN
Inventors: 蔡林旭; 任兴平; 朱晓玉
Original assignee: Tianjin Yuhao Construction Engineering Testing Co ltd
Current assignee: Tianjin Yuhao Construction Engineering Testing Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-10-21
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a foundation pile low strain detection excitation equipment, including installation pipe and rotor, the rotor rotates the one end that sets up at the installation pipe, and slidable mounting has at least one tup on the rotor, be provided with the baffle at installation internal fixation, the fixed transmission pipe that is provided with on a lateral wall of baffle, every time the rotor rotates an angle A back, at least one tup can remove the one end to the transmission pipe, and coaxial with the transmission pipe, opposite side at the baffle is provided with actuating mechanism, actuating mechanism carries out power transmission with the other end of transmission pipe through the connecting hole on the baffle. Through the tup of installing multiple different materials on the rotator, utilize the rotation of rotator to make it can be connected with the transmission pipe one by one, realize the excitation through the tup in the transfer line, actuating mechanism utilizes atmospheric pressure to promote the impact hammer and removes moreover, has reduced direct contact, can avoid reaction force to cause the damage to equipment, improves the convenience of excitation, has saved and has traded the hammer time, has improved work efficiency.

Description

Low strain detection excitation equipment for foundation pile

Technical Field

The utility model belongs to the technical field of the building detects, especially, relate to a foundation pile low strain detection excitation equipment.

Background

The strain method for detecting the integrity of the pile body is to adopt low-energy transient state to excite the vibration at the pile top, measure the speed time-course curve at the pile top and judge the integrity of the pile body through time domain analysis or frequency domain analysis of a fluctuation theory.

The force hammer used for low strain power detection is usually a hand hammer, a free drop hammer and a force rod, and the hammer head is made of iron, nylon, plastic, hard rubber and the like. The pulse force obtained by the excitation of the hammer head is short in duration, rich in high-frequency components of a force spectrum, small in wavelength and high in accuracy of judging the position of a defect, and the hammer head and the small-mass hand hammer can be adopted for shallow defects or short piles. The impulse force obtained by the excitation of the hammer or the force rod made of materials such as a nylon tap, a hard rubber head and the like has the advantages of rich low-frequency components, low frequency, long duration and deep propagation depth, and is suitable for detecting deep defects or long and large piles.

However, the hammer head of the existing force hammer for detection is single in material and cannot meet the use requirement. In the actual detection process, detection personnel cannot predict the size of a foundation pile on a detection site and the type of defects in advance, and have to prepare force hammer tools of various models (different materials and different hammer head sizes), so that the force hammer tool is inconvenient to carry, can only manually vibrate, cannot realize automatic vibration excitation, and is complicated in detection process.

Therefore, a foundation pile low-strain detection excitation device needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a low strain detection excitation equipment of foundation pile.

In order to solve the technical problem, the utility model adopts the technical scheme that:

the utility model provides a foundation pile low strain detection excitation equipment, is including installation pipe and rotor, the rotor rotates and sets up the one end of installation pipe, just slidable mounting has at least one tup on the rotor installation internal fixation is provided with the baffle the fixed transmission pipe that is provided with on the lateral wall of baffle, whenever the rotor rotates an angle A back, at least one the tup can move extremely the one end of transmission pipe, and with the transmission pipe is coaxial the opposite side of baffle is provided with actuating mechanism, actuating mechanism with the other end of transmission pipe passes through connecting hole on the baffle carries out power transmission.

Preferably, the driving mechanism comprises a motor located on one side of the partition plate, an eccentric wheel is fixedly arranged at the output end of the motor, a connecting rod is rotatably arranged on the eccentric wheel, a piston is rotatably connected to the free end of the connecting rod, and the piston is located between the partition plate and the motor and is in sliding connection with the installation pipe.

Preferably, a driving block and an impact hammer are slidably arranged in the driving pipe, and the driving block is located between the impact hammer and the rotor.

Preferably, it is provided with a plurality of mounting holes and spacing groove to run through along the axial on the rotor, and is a plurality of the mounting hole is in be circumference evenly distributed on the rotor, the spacing groove is located on the mounting hole inner wall the spacing inslot is provided with spring and spacing ring, the spacing ring is located the spring with between the driving tube, the tup sliding insertion in the mounting hole, just the spacing ring with tup fixed connection.

Preferably, the diameter of the connecting hole is not more than the inner diameter of the transmission pipe, the inner diameter of the transmission pipe is not more than the diameter of the mounting hole, and the length of the hammer head is not more than the same as the length of the mounting hole.

Preferably, a storage battery is detachably arranged on one side of the driving mechanism in the mounting pipe, and the storage battery is electrically connected with the motor.

Preferably, a handle is fixedly arranged on the outer wall of the mounting pipe, a switch is arranged on the handle, and the switch is electrically connected with the motor.

Preferably, the materials of the hammer heads in the mounting holes are different.

Preferably, the rotation angle a =360/n of the rotor, where n is the number of the hammers on the rotor.

The utility model has the advantages and positive effects that:

the utility model discloses an install the tup of multiple different materials on the rotator to utilize the rotation of rotator to make it can be one by one with the transmission union coupling, and realize the excitation through the tup in the transfer line, actuating mechanism has utilized the piston to promote the impact hammer and has removed moreover, has reduced direct contact, can avoid reaction force to cause the damage to equipment, improves the convenience of excitation, has saved and has traded the hammer time, has improved work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an axial view of the overall structure of the low-strain detection excitation equipment for foundation piles according to the present invention;

fig. 2 is a longitudinal cross-sectional view of an internal structure of the foundation pile low-strain detection excitation equipment of the present invention;

fig. 3 is a schematic diagram of the distribution angle of the hammerhead of the foundation pile low-strain detection excitation equipment.

The reference numerals are illustrated below:

1. a rotating body; 2. mounting holes; 3. a hammer head; 4. a limiting ring; 5. a reset groove; 6. a spring; 7. installing a pipe; 8. a partition plate; 9. a piston; 10. an impact hammer; 11. a drive tube; 12. connecting holes; 13. a transmission block; 14. a connecting rod; 15. an eccentric wheel; 16. a motor; 17. a handle; 18. a switch; 19. a battery; 20. and (7) connecting the shafts.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of attached drawing, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including the connected mode of circuit connection conventional among the adoption prior art, here detailed description no longer.

The present invention will be further explained with reference to the accompanying drawings:

example 1

As shown in fig. 1-3, a foundation pile low strain detection excitation device comprises an installation pipe 7 and a rotor 1, wherein the rotor 1 is rotatably arranged at one end of the installation pipe 7, at least one hammer 3 is slidably arranged on the rotor 1, a partition plate 8 is fixedly arranged in the installation pipe 7, a transmission pipe 11 is fixedly arranged on one side wall of the partition plate 8, each time the rotor 1 rotates by an angle a, the at least one hammer 3 can move to one end of the transmission pipe 11 and is coaxial with the transmission pipe 11, a driving mechanism is arranged at the other side of the partition plate 8, and the driving mechanism and the other end of the transmission pipe 11 transmit power through a connecting hole 12 in the partition plate 8.

The driving mechanism comprises a motor 16 positioned on one side of the partition plate 8, an eccentric wheel 15 is fixedly arranged at the output end of the motor 16, a connecting rod 14 is rotatably arranged on the eccentric wheel 15, a free end of the connecting rod 14 is rotatably connected with a piston 9, and the piston 9 is positioned between the partition plate 8 and the motor 16 and is in sliding connection with the mounting pipe 7.

The driving pipe 11 is internally provided with a driving block 13 and the impact hammer 10 in a sliding way, and the driving block 13 is positioned between the impact hammer 10 and the rotor 1.

Go up along the axial on the rotor 1 and run through and be provided with a plurality of mounting holes 2 and spacing groove, a plurality of mounting holes 2 are circumference evenly distributed on rotor 1, and the spacing groove is located 2 inner walls of mounting hole, is provided with spring 6 and spacing ring 4 at spacing inslot, and spacing ring 4 is located between spring 6 and the driving tube 11, and 3 sliding insertion mounting holes 2 of tup, and

spacing ring

4 and 3 fixed connection of tup.

The diameter of the connecting hole 12 is not more than the inner diameter of the transmission pipe 11, the inner diameter of the transmission pipe 11 is not more than the diameter of the mounting hole 2, and the length of the hammer head 3 is not more than the same as that of the mounting hole 2.

A storage battery 19 is detachably arranged on one side of the driving mechanism in the mounting pipe 7, and the storage battery 19 is electrically connected with the motor 16.

A handle 17 is fixedly arranged on the outer wall of the mounting pipe 7, a switch 18 is arranged on the handle 17, and the switch 18 is electrically connected with the motor 16.

The materials of the hammer heads 3 in the mounting holes 2 are different.

The working process of the embodiment is as follows:

wherein all the cover is equipped with the sealing washer on piston 9 and striking hammer 10, and the sealing washer is the rubber material to still fat liquoring pneumatic lubricating oil on the inner wall of driving pipe 11 and installation pipe 7, reduce the friction between piston 9 and installation pipe 7 and between striking hammer 10 and driving pipe 11.

Before using, a tester firstly selects corresponding testing equipment according to the length and diameter of a foundation pile to be tested, then the tester checks to ensure that at least one mounting hole 2 is coaxial with a transmission pipe 11, then a measurer holds a handle 17 and then pastes a rotating body 1 on the foundation pile to be tested, then presses a switch 18, the switch 18 rotates after being pressed, the motor 16 drives an eccentric wheel 15 to rotate after rotating the motor 16, the eccentric wheel 15 drives a piston 9 to move through a connecting rod 14 after rotating, the piston 9 compresses gas between the piston 9 and a partition plate 8 and pushes the gas into the transmission pipe 11 through a connecting hole 12, the gas is firstly blocked by an impact hammer 10 after being pushed into the transmission pipe 11, but the gas pressure is far higher than that at the other end of the impact hammer 10 because the air pushed into the piston 9 is compressed, and the diameters of the transmission pipe 11 and the piston 9 are larger than that of the impact hammer 10, therefore, after the gas rushes into the transmission pipe 11, the impact hammer 10 is pushed to move towards the transmission block 13 rapidly and collide with the transmission block 13, the transmission block 13 transmits the impact force of the impact hammer 10 to the hammer head 3, the hammer head 3 collides with the foundation pile after receiving the impact force transmitted by the transmission block 13, the spring 6 is compressed through the limiting ring 4 when the hammer head 3 collides with the foundation pile, meanwhile, the eccentric wheel 15 drags the piston 9 to move reversely through the connecting rod 14 under the continuous rotation of the eccentric wheel 15 driven by the motor 16, simultaneously, the high-pressure gas pressure in the transmission pipe 11 is gradually reduced to be the same as the gas pressure at the other end of the impact hammer 10, the impact hammer 10 moves reversely after the gas pressure is the same, meanwhile, the hammer head 3 is reset under the driving of the spring 6, and after the hammer head 3 and the impact hammer 10 are reset, the eccentric wheel 15 pushes the piston 9 again through the connecting rod 14, repeating the above-mentioned process, the staff at first loosens switch 18 when the tup 3 of different materials detects if need be changed, switch 18 is loosened the back motor 16 and can the stall, the piston 9 that loses power can stop moving, then survey personnel lift equipment up through handle 17, make the rotator upwards, can make the transmission piece 13 retract the driving pipe 11 completely through gravity like this, prevent that transmission piece 13 from causing the interference when rotating the rotator, then rotate an angle A or rotate a plurality of angles A according to the user demand in succession with rotor 1, make the rotator paste on the foundation pile once more after the rotation is accomplished, detect through pressing switch 18 excitation.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.

Claims

1. The utility model provides a low strain detection excitation equipment of foundation pile which characterized in that: including installation pipe (7) and rotor (1), rotor (1) rotates and sets up the one end of installation pipe (7), just slidable mounting has at least one tup (3) on rotor (1) installation pipe (7) internal fixation is provided with baffle (8) the fixed transmission pipe (11) that is provided with on the lateral wall of baffle (8), whenever rotor (1) rotates an angle A back, at least one tup (3) can move extremely the one end of transmission pipe (11), and with transmission pipe (11) are coaxial the opposite side of baffle (8) is provided with actuating mechanism, actuating mechanism with the other end of transmission pipe (11) passes through connecting hole (12) on baffle (8) carry out power transmission.

2. The foundation pile low-strain detection excitation device according to claim 1, characterized in that: actuating mechanism is including being located motor (16) of baffle (8) one side the fixed eccentric wheel (15) that is provided with of output of motor (16), it is provided with connecting rod (14) to rotate on eccentric wheel (15), the free end of connecting rod (14) rotates and is connected with piston (9), piston (9) are located baffle (8) with between motor (16), and with installation pipe (7) sliding connection.

3. The foundation pile low-strain detection excitation device according to claim 1, characterized in that: slide in transmission pipe (11) and be provided with driving block (13) and impact hammer (10), driving block (13) are located impact hammer (10) with between rotor (1).

4. The foundation pile low-strain detection excitation device according to claim 1, characterized in that: go up rotor (1) and run through along the axial and be provided with a plurality of mounting holes (2) and spacing groove, it is a plurality of mounting hole (2) are in be circumference evenly distributed on rotor (1), the spacing groove is located on mounting hole (2) the inner wall spacing inslot is provided with spring (6) and spacing ring (4), spacing ring (4) are located spring (6) with between driving tube (11), tup (3) slip insert in mounting hole (2), just spacing ring (4) with tup (3) fixed connection.

5. The foundation pile low-strain detection excitation device as claimed in claim 4, wherein: the diameter of the connecting hole (12) is not more than the inner diameter of the transmission pipe (11), the inner diameter of the transmission pipe (11) is not more than the diameter of the mounting hole (2), and the length of the hammer head (3) is not more than the length of the mounting hole (2) is the same.

6. The foundation pile low-strain detection excitation device according to claim 2, characterized in that: the installation pipe (7) is internally provided with a storage battery (19) at one side of the driving mechanism in a detachable mode, and the storage battery (19) is electrically connected with the motor (16).

7. The pile low-strain detection excitation device according to claim 2, characterized in that: a handle (17) is fixedly arranged on the outer wall of the mounting pipe (7), a switch (18) is arranged on the handle (17), and the switch (18) is electrically connected with the motor (16).

8. The foundation pile low-strain detection excitation device as claimed in claim 4, wherein: the materials of the hammer heads (3) in the mounting holes (2) are different.

9. The foundation pile low-strain detection excitation device as claimed in claim 4, wherein: the rotating angle A =360/n of rotor (1), wherein n is rotor (1) goes up the number of tup (3).