CN217537092U

CN217537092U - Low-strain detector for foundation pile detection

Info

Publication number: CN217537092U
Application number: CN202220319059.7U
Authority: CN
Inventors: 李翔榕
Original assignee: Fujian Shenghang Engineering Quality Inspection Co ltd
Current assignee: Fujian Shenghang Engineering Quality Inspection Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-10-04
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a low strain detector for foundation pile detection, including low strain detector main part and with low strain detector main part electric connection's detection sensor, the bottom fixedly connected with rectangular pipe of low strain detector main part, the bottom both sides of rectangular pipe all fixedly connected with branch, are equipped with two arc splint between two branches, two arc splint symmetry sets up, detect the sensor inlay dress and fix on the right side of left arc splint, the bottom fixedly connected with of rectangular pipe is located the pneumatic cylinder between two branches, the extension end fixedly connected with of pneumatic cylinder strikes and shakes the hammer; the bottom of the right side of the supporting rod is provided with a rectangular through hole. The utility model discloses be convenient for automatic will detect the sensor clamping outside the foundation pile fast, and the automatic control clamping pressure of being convenient for, need not personnel's manual adjustment clamping, labour saving and time saving improves work efficiency, and can effectively avoid satisfying the user demand because of the less phenomenon that leads to detecting the sensor and drop of clamping pressure.

Description

Low-strain detector for foundation pile detection

Technical Field

The utility model relates to a low detector technical field that meets an emergency especially relates to a low detector that meets an emergency for foundation pile detects.

Background

The tubular pile is a pile poured by concrete, has the advantages of stable quality, high strength, low manufacturing cost and the like when being used as a foundation material, is widely applied to various foundation projects, can be divided into a prestressed concrete tubular pile and a prestressed high-strength concrete tubular pile according to the concrete strength grade, has the defect of influence on the strength due to the brittle failure and the like of the prestressed tubular pile, and is particularly important for detecting the strain force of the tubular pile after construction; the stress wave reflection method is the most commonly used method at present and is also the most representative detection method, the stress wave generating device is used for knocking the tubular pile, the stress wave is transmitted downwards from the tubular pile and generates emission waves when encountering a discontinuous interface, and the low-strain detector is used for analyzing the reflected waves to detect the defects of cracks, pores and the like of the tubular pile.

The effective detection length of the stress wave is limited, and when the length of the pipe pile is longer, a sensor of a low-strain detector needs to be moved integrally continuously, and the sensor of the detector needs to be fixed on the foundation pile during monitoring;

present foundation pile detection device, it exists the shortcoming of being not convenient for fix the sensor on the foundation pile fast, adopt manual flexible adjustment support to fix the sensor clamping in the foundation pile outside mostly, and the multiple spot detects the position that needs a lot of removal sensor, consequently, manual fixed mode is wasted time and energy, work efficiency is low, also difficult control clamping dynamics, the phenomenon that leads to the sensor to drop because of the clamping dynamics is lower appears very easily, can not satisfy the user demand, to this phenomenon, therefore we have provided a low detector that meets an emergency for the foundation pile detects, a use for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the low strain detector who is used for foundation pile to detect who proposes.

In order to realize the purpose, the utility model adopts the following technical scheme:

a low strain detector for foundation pile detection comprises a low strain detector main body and a detection sensor electrically connected with the low strain detector main body, wherein a rectangular pipe is fixedly connected to the bottom of the low strain detector main body, supporting rods are fixedly connected to two sides of the bottom of the rectangular pipe, two arc-shaped clamping plates are arranged between the two supporting rods and symmetrically arranged, the detection sensor is embedded and fixed on the right side of the arc-shaped clamping plate on the left side, a pneumatic cylinder located between the two supporting rods is fixedly connected to the bottom of the rectangular pipe, and a knocking hammer is fixedly connected to an extending end of the pneumatic cylinder;

the utility model discloses a rectangular pipe, including branch, rectangle perforation, slide sleeve, two equal fixedly connected with pressure sensor in one side that the shape pole is close to each other, one side that two pressure sensor are close to each other is respectively with one side fixed connection that two arc splint kept away from each other in the rectangle perforation, the equal fixedly connected with guiding mechanism in one side that two arc splint kept away from each other, it establishes on the guiding mechanism that corresponds to return the shape pole sliding sleeve, it is connected with screw thread actuating mechanism to rotate between fenestrate top inner wall of rectangle and the bottom inner wall, screw thread actuating mechanism's both ends respectively with the both sides inner wall fixed connection that corresponds the shape pole that returns, the pivot is installed to the rectangular pipe internal rotation, fixed cover is equipped with two link gear in the pivot, the bottom of link gear extends to in the shape pole that corresponds, the fixed cover of link gear establishes on the screw thread actuating mechanism that corresponds, the left side fixedly connected with driving motor of rectangular pipe, driving motor's output shaft and the left end fixed connection of pivot, the top fixedly connected with controller of rectangular pipe, driving motor and two pressure sensor all with controller electric connection.

Preferably, the guide mechanism comprises two guide rods, the guide rods are fixedly connected with one sides, close to the support rods, of the corresponding arc-shaped clamping plates, and the clip-shaped rods are sleeved on the two corresponding guide rods in a sliding mode.

Preferably, the thread driving mechanism comprises an internal thread sleeve rotatably installed between the inner wall of the top of the corresponding rectangular perforation and the inner wall of the bottom of the rectangular perforation, a screw rod is sleeved on the internal thread sleeve, the two ends of the screw rod are fixedly connected with the inner walls of the two sides of the corresponding clip rod respectively, the thread turning directions of the two screw rods are opposite, and the thread turning directions of the two internal thread sleeves are opposite.

Preferably, the linkage mechanism comprises first chain wheels, chains and second chain wheels, wherein the two first chain wheels are fixedly sleeved on the rotating shaft, the two second chain wheels are respectively fixedly sleeved on the corresponding internal thread sleeves, the chains are connected to the outer sides of the corresponding first chain wheels and the second chain wheels in a transmission manner, and the supporting rods are sleeved on the corresponding chains.

Preferably, the anti-skid rubber is fixedly bonded on one side of each arc-shaped clamping plate close to each other, and the anti-skid rubber positioned on the left side is sleeved on the detection sensor.

Preferably, the top end of the support rod is provided with a rectangular through hole, and the chain is positioned in the corresponding rectangular through hole and is not contacted with the inner wall of the rectangular through hole.

Preferably, the top of the rectangular pipe is fixedly connected with a storage battery, and the driving motor and the controller are both electrically connected with the storage battery.

Preferably, the knocking hammer is positioned above the middle parts of the two arc-shaped clamping plates.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses be convenient for automatic will detect the sensor clamping outside the foundation pile fast, and the automatic control clamping pressure of being convenient for, need not personnel's manual adjustment clamping, labour saving and time saving improves work efficiency, and can effectively avoid satisfying the user demand because of the less phenomenon that leads to detecting the sensor and drop of clamping pressure.

Drawings

Fig. 1 is a schematic structural view of a low strain detector for foundation pile detection according to the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1;

FIG. 3 is an enlarged view of part A of FIG. 2;

fig. 4 is the utility model provides a structural schematic is overlooked to circle shape pole, internal thread sleeve pipe and screw rod connecting piece for low strain detector that foundation pile detected.

In the figure: 1. a low strain detector body; 101. a detection sensor; 2. a pneumatic cylinder; 3. knocking a vibration hammer; 4. a rectangular tube; 5. a strut; 6. a controller; 7. a drive motor; 8. a rotating shaft; 9. a first sprocket; 10. a chain; 11. a second sprocket; 12. a rectangular perforation; 13. a clip-shaped rod; 14. an internally threaded sleeve; 15. a screw; 16. an arc-shaped splint; 17. a pressure sensor; 18. a guide rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a low strain detector for foundation pile detection comprises a low strain detector main body 1 and a detection sensor 101 electrically connected with the low strain detector main body 1, wherein a rectangular tube 4 is fixedly connected to the bottom of the low strain detector main body 1, two support rods 5 are fixedly connected to both sides of the bottom of the rectangular tube 4, two arc-shaped clamping plates 16 are arranged between the two support rods 5, the two arc-shaped clamping plates 16 are symmetrically arranged, the detection sensor 101 is embedded and fixed on the right side of the arc-shaped clamping plate 16 on the left side, wherein an embedded groove fixedly connected with the outer side of the detection sensor 101 is formed on the right side of the arc-shaped clamping plate 16 on the left side, and the front side of the embedded groove is provided with an opening, the detection sensor 101 is fixedly embedded on the right side of the arc-shaped clamping plate 16 on the left side through the embedding groove, anti-skid rubber sheets are fixedly bonded on the sides, close to each other, of the two arc-shaped clamping plates 16, the anti-skid rubber sheets on the left side are sleeved on the detection sensor 101, first through holes with openings on the front sides are formed in the right side of the anti-skid rubber sheets on the left side, the inner walls of the first through holes are in movable contact with the outer side of the detection sensor 101 to achieve the effect that the detection sensor 101 penetrates through, a pneumatic cylinder 2 located between the two supporting rods 5 is fixedly connected to the bottom of the rectangular pipe 4, a knocking hammer 3 is fixedly connected to the extending end of the pneumatic cylinder 2, and the knocking hammer 3 is located above the middle of the two arc-shaped clamping plates 16;

the bottom of the right side of the supporting rod 5 is provided with a rectangular perforation 12, a rectangular rod 13 is sleeved in the rectangular perforation 12 in a sliding manner, one side, close to each other, of each two rectangular rods 13 is fixedly connected with a pressure sensor 17, one side, close to each other, of each two pressure sensors 17 is fixedly connected with one side, far away from each other, of each two arc-shaped clamping plates 16, one side, far away from each other, of each two arc-shaped clamping plates 16 is fixedly connected with a guide mechanism, the rectangular rods 13 are sleeved on the corresponding guide mechanisms in a sliding manner, a thread driving mechanism is rotatably connected between the inner walls of the top and the bottom of the rectangular perforation 12, two ends of the thread driving mechanism are fixedly connected with the inner walls of two sides of the corresponding rectangular rods 13 respectively, a rotating shaft 8 is rotatably installed in the rectangular tube 4, wherein two first bearings are fixedly connected between the inner walls of the top and the bottom of the rectangular tube 4, the inner ring of the first bearing is fixedly sleeved with the outer side of the rotating shaft 8, the rotating shaft 8 is rotatably installed in the rectangular tube 4 through the two first bearings, and an effect of facilitating the rotation of the rotating shaft 8 is achieved, two linkage mechanisms are fixedly sleeved on the rotating shaft 8, the bottoms of the linkage mechanisms extend into the corresponding clip-shaped rods 13, the linkage mechanisms are fixedly sleeved on the corresponding thread driving mechanisms, the left side of the rectangular tube 4 is fixedly connected with a driving motor 7, an output shaft of the driving motor 7 is fixedly connected with the left end of the rotating shaft 8, the top of the rectangular tube 4 is fixedly connected with a controller 6, the driving motor 7 and the two pressure sensors 17 are both electrically connected with the controller 6, the top of the rectangular tube 4 is fixedly connected with a storage battery, and the driving motor 7 and the controller 6 are both electrically connected with the storage battery, so that an effect of supplying power to the driving motor 7 and the controller 6 is achieved;

the guide mechanism comprises two guide rods 18, the guide rods 18 are fixedly connected with one sides, close to the supporting rod 5, of the corresponding arc-shaped clamping plates 16, the two corresponding guide rods 18 are sleeved with the two clip-shaped rods 13 in a sliding mode, two guide grooves are formed in one sides, close to each other, of the two clip-shaped rods 13, the inner walls of the guide grooves are connected with the outer sides of the corresponding guide rods 18 in a sliding mode, the clip-shaped rods 13 are sleeved on the two corresponding guide rods 18 in a sliding mode through the two guide grooves, and the guide positioning effect is achieved;

the thread driving mechanism comprises an internal thread sleeve 14 which is rotatably installed between the top inner wall and the bottom inner wall of the corresponding rectangular perforation 12, wherein a second bearing is fixedly connected between the top inner wall and the bottom inner wall of the rectangular perforation 12, the inner side of an inner ring of the second bearing is fixedly connected with the outer side of the corresponding internal thread sleeve 14, the internal thread sleeve 14 is rotatably installed between the top inner wall and the bottom inner wall of the corresponding rectangular perforation 12 through the second bearing, and the effect of facilitating the rotation of the internal thread sleeve 14 is achieved;

the link gear includes first sprocket 9, chain 10 and second sprocket 11, the equal fixed cover of two first sprockets 9 is established in pivot 8, two second sprockets 11 are fixed the cover respectively and are established on corresponding internal thread sleeve 14, chain 10 transmission is connected in the first sprocket 9 and the second sprocket 11 outside that correspond, branch 5 cover is established on corresponding chain 10, the rectangle through-hole has been seted up on the top of branch 5, chain 10 is located the rectangle through-hole that corresponds and contactless with the inner wall of rectangle through-hole, play the effect that supplies chain 10 to pass, still set up the chain preformed hole that supplies chain 10 to go on passing on the bottom inner wall of rectangular pipe 4, the utility model discloses be convenient for automatic will detect sensor 101 clamping outside the foundation pile fast automatically, and be convenient for automatic control clamping pressure, need not personnel's manual adjustment clamping, labour saving and time saving improves work efficiency, and can effectively avoid leading to the phenomenon that detects sensor 101 and drop because of the less clamping pressure, satisfy the user demand.

The working principle is as follows: when the device is used, a person moves the device to enable the foundation pile to be located between the two arc-shaped clamping plates 16, the controller 6 is used for presetting closing pressure for controlling the driving motor 7, at the moment, the person positively starts the driving motor 7 to drive the rotating shaft 8 to rotate, the rotating shaft 8 drives the two first chain wheels 9 to rotate, the two first chain wheels 9 drive the two second chain wheels 11 to rotate through the two chains 10, the two second chain wheels 11 drive the two internal thread sleeves 14 to rotate, due to the fact that the thread turning directions of the two screw rods 15 are opposite, the two internal thread sleeves 14 can drive the two screw rods 15 to move towards the mutually approaching direction, the two screw rods 15 drive the two clip rods 13 to slide towards the mutually approaching direction in the two rectangular through holes 12, and the two clip rods 13 drive the two arc-shaped clamping plates 16 to move towards the mutually approaching direction through the two pressure sensors 17, the two arc-shaped clamping plates 16 drive the two anti-skid rubber sheets to clamp the foundation pile towards the middle, at the moment, the arc-shaped clamping plate 16 on the left side drives the detection sensor 101 to contact with the outer side of the foundation pile, when the arc-shaped anti-skid rubber sheets contact with the outer side of the foundation pile, the arc-shaped anti-skid rubber sheets are shielded and limited by the arc-shaped anti-skid rubber sheets, so that the arc-shaped clamping plates 16 are limited not to move any more, at the moment, the two clip rods 13 continuously moving towards the middle extrude the two pressure sensors 17 to achieve the effect of extruding the arc-shaped clamping plates 16, the pressure sensors 17 detect the pressure and transmit the pressure to the controller 6, when the extrusion clamping pressure reaches a preset upper limit value, the controller 6 controls the driving motor 7 to be closed, so that the detection sensor 101 is conveniently and automatically and rapidly clamped at the outer side of the foundation pile, the clamping pressure is conveniently and automatically controlled, manual adjustment of clamping by personnel is not needed, time and labor are saved, and the phenomenon that the detection sensor 101 falls off due to small clamping pressure can be effectively avoided;

during detection, start pneumatic cylinder 2 and make it drive and strike and shake hammer 3 and strike the shake to the foundation pile, detection sensor 101 transmits the reflection wave for low strain detector main part 1 and carries out analysis and detection, need remove to next detection time-measuring after the detection is accomplished, personnel reverse start driving motor 7, the direction of motion that starts driving motor 7 with the forward is totally opposite with the same reason, two arc splint 16 change into the direction removal of keeping away from each other this moment, and relieve the clamping to the foundation pile, personnel alright move up this device or move down to another check point this moment, then forward start driving motor 7 once more carry out clamping work can.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A low strain detector for foundation pile detection comprises a low strain detector main body (1) and a detection sensor (101) electrically connected with the low strain detector main body (1), and is characterized in that the bottom of the low strain detector main body (1) is fixedly connected with a rectangular tube (4), two sides of the bottom of the rectangular tube (4) are fixedly connected with supporting rods (5), two arc-shaped clamping plates (16) are arranged between the two supporting rods (5), the two arc-shaped clamping plates (16) are symmetrically arranged, the detection sensor (101) is embedded and fixed on the right side of the arc-shaped clamping plate (16) on the left side, the bottom of the rectangular tube (4) is fixedly connected with a pneumatic cylinder (2) positioned between the two supporting rods (5), and the extending end of the pneumatic cylinder (2) is fixedly connected with a knocking hammer (3);

rectangle perforation (12) have been seted up to the right side bottom of branch (5), the slip cover is equipped with back shape pole (13) in rectangle perforation (12), two return equal fixedly connected with pressure sensor (17) in one side that shape pole (13) are close to each other, one side fixed connection that one side that two pressure sensor (17) are close to each other kept away from each other with two arc splint (16) respectively, the equal fixedly connected with guiding mechanism in one side that two arc splint (16) were kept away from each other, it establishes on the guiding mechanism that corresponds to return shape pole (13) slip cap, it is connected with screw drive mechanism to rotate between the top inner wall of rectangle perforation (12) and the bottom inner wall, screw drive mechanism's both ends respectively with the both sides inner wall fixed connection who corresponds back shape pole (13), pivot (8) are installed to rectangle pipe (4) internal rotation, the fixed cover is equipped with two link gear on pivot (8), link gear's bottom extends to in the shape pole (13) that corresponds, the fixed cap of link gear establishes on the screw drive mechanism that corresponds, the left side fixed connection has driving motor (7) of rectangle pipe (4), the output shaft of driving motor (7) and the pivot (8), the left side fixed connection of driving motor (6) and the equal connection of pressure sensor (6) and pressure controller (17) and two electric controller (6).

2. The low strain detector for foundation pile detection according to claim 1, wherein the guiding mechanism comprises two guiding rods (18), the guiding rods (18) are fixedly connected with one side of the corresponding arc-shaped clamping plate (16) close to the supporting rod (5), and the clip-shaped rod (13) is slidably sleeved on the two corresponding guiding rods (18).

3. The low strain detector for foundation pile detection according to claim 1, wherein the thread driving mechanism comprises an internal thread sleeve (14) rotatably installed between the top inner wall and the bottom inner wall of the corresponding rectangular through hole (12), a screw (15) is sleeved in the internal thread of the internal thread sleeve (14), two ends of the screw (15) are respectively fixedly connected with the inner walls of two sides of the corresponding clip-shaped rod (13), and the thread turning directions of the two screws (15) are opposite.

4. The low strain detector for foundation pile detection according to claim 1, wherein the linkage mechanism comprises first chain wheels (9), chains (10) and second chain wheels (11), wherein the two first chain wheels (9) are fixedly sleeved on the rotating shaft (8), the two second chain wheels (11) are fixedly sleeved on the corresponding internal thread sleeves (14), the chains (10) are in transmission connection with the outer sides of the corresponding first chain wheels (9) and second chain wheels (11), and the support rods (5) are sleeved on the corresponding chains (10).

5. The low strain detector for foundation pile detection according to claim 1, wherein the anti-slip rubber is fixedly bonded to the side of each of the two arc-shaped clamping plates (16) close to each other, and the anti-slip rubber on the left side is sleeved on the detection sensor (101).

6. The low strain detector for foundation pile detection according to claim 4, wherein the top end of the support rod (5) is provided with a rectangular through hole, and the chain (10) is located in the corresponding rectangular through hole and is not in contact with the inner wall of the rectangular through hole.

7. The low strain detector for foundation pile detection according to claim 1, wherein a storage battery is fixedly connected to the top of the rectangular tube (4), and the driving motor (7) and the controller (6) are electrically connected with the storage battery.

8. A low strain gauge for foundation pile testing according to claim 1, wherein the rapping hammer (3) is located above the middle of two arc-shaped clamping plates (16).