CN114778349A

CN114778349A - Concrete compressive strength in-situ detection device and detection method

Info

Publication number: CN114778349A
Application number: CN202210284391.9A
Authority: CN
Inventors: 陈晓东; 宓夏雨; 曹建良
Original assignee: Zhejiang Yuanxing Engineering Consulting Co ltd
Current assignee: Zhejiang Yuanxing Engineering Consulting Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-22

Abstract

The application relates to the field of concrete detection, in particular to a concrete compressive strength in-situ detection device and a detection method, wherein the concrete compressive strength in-situ detection device comprises a resiliometer body, a base and an extension piece, one end of the extension piece is arranged on the base, one end, far away from the base, of the extension piece is connected with a bearing part in a sliding mode, the resiliometer body is detachably mounted on the bearing part, and the sliding direction of the bearing part and the length direction of the extension piece are arranged in a crossed mode; the extension piece is rotatably connected with a driving wheel, the driving wheel is meshed with one side, close to the base, of the bearing part, a connecting rod is arranged on the extension piece in a sliding mode, one end, close to the bearing part, of the connecting rod is hinged with a traction rod, and the traction rod is eccentrically and rotatably connected with the driving wheel; and the base is also provided with a lifting assembly used for driving the extension piece to vertically move. This application has the effect that makes things convenient for operating personnel to detect the compressive strength of eminence concrete member, can promote detection efficiency.

Description

Concrete compressive strength in-situ detection device and detection method

Technical Field

The application relates to the field of concrete detection, in particular to a concrete compressive strength in-situ detection device and a detection method.

Background

Concrete is an essential material in modern construction engineering, the compressive strength is the most important index of concrete, and the detection of a formed concrete member on site is called in-situ detection.

The rebound method is the most commonly used nondestructive testing method at present, the used rebound apparatus is of a mechanical type and a digital display type, the hardness of the concrete surface is detected through the rebound apparatus to obtain a surface hardness value, then the carbonization depth is collected, and the concrete compressive strength value is estimated by utilizing a mathematical relationship. When the rebound tester is used for detecting the compressive strength of concrete, an operator can mark a plurality of measuring areas on the surface of a concrete member, each measuring area draws a certain number of measuring points, and the rebound tester is abutted against the measuring points for detection.

Because resiliometer need grip through both hands and detects, when the position that the concrete member was located exceeds the scope that operating personnel can touch, need set up the support and stand above that and detect for operating personnel, set up the support and waste time and energy, seriously reduced concrete compressive strength's detection efficiency.

Disclosure of Invention

In order to improve the detection efficiency of the compressive strength of the concrete member with a higher position, the application provides a concrete compressive strength in-situ detection device and a detection method.

In a first aspect, the application provides a concrete compressive strength in-situ detection device which adopts the following technical scheme:

a concrete compressive strength in-situ detection device comprises a resiliometer body, a base and an extension piece, wherein one end of the extension piece is arranged on the base, one end, far away from the base, of the extension piece is connected with a bearing part in a sliding mode, the resiliometer body is detachably arranged on the bearing part, and the sliding direction of the bearing part and the length direction of the extension piece are arranged in a crossed mode; the extension piece is rotatably connected with a driving wheel, the driving wheel is meshed with one side, close to the base, of the bearing part, a connecting rod is arranged on the extension piece in a sliding mode, one end, close to the bearing part, of the connecting rod is hinged with a traction rod, and the traction rod is eccentrically and rotatably connected with the driving wheel; and the base is also provided with a lifting assembly used for driving the extension piece to vertically move.

Through adopting above-mentioned technical scheme, install the resiliometer body on the extension, then remove the base to the concrete member department that needs detected compressive strength, operating personnel sliding connection pole again, the connecting rod can drive the drive wheel through the traction lever and rotate, and the portion of accepting will take place to remove, makes the portion of accepting drive the body conflict on the concrete member to operating personnel can conveniently detect the higher concrete member compressive strength in position, and detection efficiency will also promote. The lifting assembly is matched with the movable base, so that the resiliometer body can be over against measuring points with different heights and horizontal positions on the concrete member until the required detection data quantity is completed.

Preferably, lifting unit includes that vertical removal sets up the mounting disc on the base, and extension setting is on the mounting disc, and threaded connection has the screw rod of being connected with the mounting disc rotation on the base, is equipped with the gag lever post parallel with the screw rod on the mounting disc, and the vertical slip of gag lever post sets up on the base, and the mounting disc is passed and is equipped with the crank on the top of screw rod, and extension is located outside the rotation orbit of crank.

Through adopting above-mentioned technical scheme, measuring point position height on the concrete member is different, and operating personnel passes through the continuous rotatory screw rod of crank, and under the limiting action of gag lever post, the mounting disc will carry out vertical removal together with the extension to the position height alright of resiliometer body change, the resiliometer can detect the measuring point of position height difference.

Preferably, extending a horizontal migration is equipped with the adjusting part who is used for removing the extension on the mounting disc, has seted up the cavity in the mounting disc, and the adjusting part slides and is provided with the connecting axle including rotating the dwang of connection in the cavity, and the slip direction of connecting axle is perpendicular with the axis of rotation of dwang, and the connecting axle passes the dwang and with dwang sliding connection, the connecting axle wear out the cavity and be connected with the extension.

By adopting the technical scheme, under the condition that the base is not moved, the adjusting assembly enables an operator to independently move the extending piece, so that the position of the rebound tester body, which is opposite to the measuring points on the concrete member, in the horizontal direction is changed, when the distance between two adjacent measuring points is small, only the extending piece is moved, the time consumed by moving the bottom can be reduced, and when the distance between two measuring points exceeds the moving range of the extending piece on the mounting disc, the base is moved to the next position.

Preferably, a rotating ring which is connected with the rotating rod and is rotatably sleeved on the screw rod is arranged in the cavity, the top end of the rotating ring penetrates out of the cavity, the hand crank comprises a connecting cylinder which is rotatably sleeved at the top end of the screw rod, the cross section of the outer wall of the top end of the rotating ring is polygonal, and the bottom end of the connecting cylinder is in inserting fit with the rotating ring; the screw rod is internally and hollow and is rotationally connected with a clamping shaft, the rotating axis of the clamping shaft is positioned between the two ends of the clamping shaft and is vertical to the axis of the screw rod, the two ends of the clamping shaft are respectively positioned at the inner side and the outer side of the screw rod, and the inner wall of the connecting cylinder is provided with a clamping groove which is clamped with one end of the clamping shaft penetrating out of the screw rod; the axis direction of following the screw rod in the screw rod slides and is provided with the butt piece, and the butt piece is used for being located the one end butt in the screw rod with the joint axle, is equipped with the application of force portion of wearing out the screw rod on the butt piece, still is equipped with the third elastic component in tip embedding joint groove of ordering about the joint axle on the inner wall of screw rod.

Through adopting above-mentioned technical scheme, when joint axle and the mutual joint in joint groove, can rotate the screw rod alone through rotatory hand rocking handle, and when needs rotatory dwang, remove the butt piece through application of force portion, the butt piece supports the joint axle and makes the joint axle rotate, the tip of joint axle is deviate from the joint inslot, the connecting cylinder both can rotate for the screw rod this moment and can follow axial displacement on the screw rod again, this moment with connecting cylinder downstream, make connecting cylinder and swivel becket cooperation of pegging graft, through the hand rocking handle will rotatory dwang alone, thereby only through hand rocking handle alright realize resiliometer body level and vertical removal, further make things convenient for operating personnel in the operation of testing process.

Preferably, be equipped with the locating plate that the arc set up in the cavity of mounting disc, the axis that the locating plate corresponds is the same with the axis of dwang, the one end of dwang slides and is provided with second location axle, second location axle is contradicted with a lateral wall of locating plate indent, a plurality of second locating holes have been seted up to circumference interval on the lateral wall that locating plate and second location axle contradict, the cooperation of pegging graft of second locating hole and second location axle, second location axle is just to a plurality of second locating holes one by one at dwang pivoted in-process, be equipped with the second elastic component of ordering about second location axle embedding second locating hole on the dwang.

By adopting the technical scheme, the second positioning shaft is inserted into different second positioning holes, the resiliometer body corresponds to different measuring points on the same horizontal height, the distance between the measuring points in the same measuring area is relatively small, and the time spent on determining the horizontal distance between the measuring points can be shortened by an operator according to the resistance sense generated when the second positioning shaft is separated from the second positioning holes, so that the detection efficiency is improved.

Preferably, set up on the base and supply the gag lever post to slip to inlay the spacing hole of establishing, slip on the inner wall in spacing hole and inlay and be equipped with first locating shaft, spaced apart a plurality of first locating holes that are equipped with along self length direction on the gag lever post, first locating shaft and first locating hole grafting cooperation, it is just right with first locating shaft one by one to slide a plurality of first locating holes of in-process at the gag lever post, be equipped with the first elastic component that is used for ordering about first locating shaft embedding first locating hole on the inner wall in spacing hole.

By adopting the technical scheme, when detecting a plurality of measuring points at different height positions in the same measuring area, an operator inserts the reference provided by the first positioning hole according to the first positioning shaft, so that the position of the measuring point can be quickly determined when the measuring point is vertically changed.

Preferably, the two sides of the bearing part, which are arranged along the direction perpendicular to the sliding direction of the bearing part, are respectively provided with a clamping block, one side, which is opposite to the two clamping blocks, is respectively provided with an inclined surface which inclines downwards towards the direction in which the two clamping blocks are close to each other, one side, which is provided with the inclined surface, of the clamping block is also provided with an abutting surface which is arranged in an arc shape, the abutting surface is located at one side, which is close to the bearing part, of the clamping block, the two sides of the bearing part are respectively provided with a fourth elastic part, and the fourth elastic part is used for driving the adjacent clamping block to move towards the other clamping block.

Through adopting above-mentioned technical scheme, through the setting on inclined plane, operating personnel can impress the resiliometer body between two grip blocks conveniently, and under the effect of fourth elastic component, two grip blocks continuously support the resiliometer body. The setting of butt face then can increase the area of contact of butt piece and resiliometer body, promotes the stability that the resiliometer was held.

Preferably, a baffle plate for abutting against the resiliometer body is arranged at one end of the bearing part.

Through adopting above-mentioned technical scheme, the resiliometer supports the concrete member and detects the reaction force who receives, mainly bears by the baffle, does not rely on the frictional force between piece and the resiliometer body of supporting.

On the other hand, the application also provides a detection method of the concrete compressive strength in-situ detection device, which comprises the following steps:

s1, setting initial parameters of the resiliometer body, and then installing the resiliometer body on the bearing part;

s2, moving the connecting rod to rotate the driving wheel, so that the bearing part moves towards the direction of the concrete member, and moving the connecting rod reversely after the resiliometer body abuts against the concrete member;

s3, changing the position height of the resiliometer body through the lifting assembly and repeating the step S2, or firstly horizontally moving the base and then repeating the step S2 until reaching the required detection times.

Through adopting above-mentioned technical scheme, when the concrete member position that detects is higher, operating personnel can install the resiliometer body on the accepting part, keeps away from again after making the resiliometer body can support on the concrete member through reciprocating motion accepting part to realize concrete member compressive strength's detection, provide convenience for operating personnel's detection operation. Through the effect that removes base cooperation lift module, make the measurement station that the resiliometer body can detect different levels and high position, so can accomplish required detection number of times.

In summary, the present application includes at least one of the following beneficial technical effects:

through the arrangement of the base and the extension piece, the resiliometer body can be lifted to detect the concrete member, and an operator can make the resiliometer return again after abutting against the concrete member by making the bearing part move back and forth so as to detect the next measuring point of the concrete member, so that convenience is provided for the detection operation of the operator, and the detection efficiency of the compressive strength of the concrete member at the high position can be improved;

through the arrangement of the lifting assembly, the height position of the resiliometer body, which is opposite to the measuring points, can be changed, and through the arrangement of the adjusting assembly, when the distance between adjacent measuring points is small, the extending piece can be independently moved to change the position of the resiliometer body, so that the rebound tester saves more labor and time compared with a movable base;

through the connecting cylinder of crank and the setting of swivel becket, operating personnel can select to use the rotatory screw rod of crank or dwang as required, and it is very convenient to operate.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an in-situ concrete compressive strength detection device in the embodiment of the present application;

FIG. 2 is a schematic diagram of a resiliometer configuration employed in an embodiment of the present application;

FIG. 3 is a schematic view showing mainly the structure of the support assembly;

FIG. 4 is a schematic view showing mainly the structure of the base and the lift assembly;

FIG. 5 is a schematic view mainly showing the construction of the adjusting assembly;

fig. 6 is an enlarged view of a portion a in fig. 5, and mainly shows a connection structure of the hand crank and the screw.

Description of the reference numerals: 1. a resiliometer body; 11. a display unit; 12. a tapping rod; 2. a support assembly; 21. an extension member; 211. an extension plate; 22. a receiving part; 221. a fixing plate; 222. a clamping block; 2221. a bevel; 2222. a butting surface; 223. an elastic plate; 224. a baffle plate; 23. a drive wheel; 24. a connecting rod; 25. a draw bar; 3. a base; 31. a chassis; 311. a limiting hole; 312. a first positioning shaft; 313. mounting holes; 314. a first spring; 32. a support leg; 4. a lifting assembly; 41. mounting a disc; 411. a cavity; 42. a screw; 421. clamping the shaft; 422. an elastic sheet; 423. a butting block; 424. a force application part; 43. a limiting rod; 431. a first positioning hole; 44. a crank handle; 441. a connecting cylinder; 4411. a clamping groove; 442. a rocking section; 5. an adjustment assembly; 51. a rotating ring; 52. rotating the rod; 521. connecting holes; 522. a second positioning shaft; 523. a second spring; 53. a connecting shaft; 531. a connecting portion; 54. positioning a plate; 541. and a second positioning hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses concrete compressive strength in-situ detection device.

Referring to fig. 1, detection device includes resiliometer body 1 and supporting component 2, and supporting component 2 is including the extension 21 that is the slope setting, and resiliometer body 1 is installed on the top of extension 21, and the bottom of extension 21 is connected with base 3, and extension 21 is fixed subaerial through base 3, and operating personnel installs resiliometer body 1 on the top of extension 21, can detect the compressive strength of the concrete member that is in higher position.

Referring to fig. 2, in this embodiment, the resiliometer body 1 is a digital display type resiliometer, a display portion 11 is provided on the resiliometer body 1, the cross-sectional shape of the resiliometer body 1 is circular, and an elastic striking rod 12 is provided at one end of the resiliometer body 1.

Referring to fig. 1, the base 3 comprises a base plate 31 and three legs 32 hinged to the base plate 31, and when the base plate 31 is stabilized on the ground by spreading and fixing the three legs 32.

Referring to fig. 3, a receiving portion 22 is slidably connected to the top end of the extending member 21, the resiliometer body 1 is fixed on the receiving portion 22, the sliding direction of the receiving portion 22 is crossed with the length direction of the extending member 21, and in this embodiment, the sliding direction of the receiving portion 22 is horizontally arranged and is parallel to the vertical plane corresponding to the extending direction of the extending member 21. The top of extension 21 rotates and is connected with a drive wheel 23, and the rotation axis level of drive wheel 23 sets up and is perpendicular with the slip direction of bolster 22, and drive wheel 23 meshes with the bottom side of bolster 22, and drive wheel 23 is rotatory alright drive bolster 22 horizontal migration, and resiliometer body 1 on the bolster 22 alright conflict earlier on the concrete member surface, then keep away from the concrete member.

Referring to fig. 3, a connecting rod 24 parallel to the length of the extending member 21 is slidably connected to the extending member 21, the connecting rod 24 slides on the extending member 21 along the length direction thereof, a traction rod 25 is hinged to one end of the extending member 21 close to the driving wheel 23, one end of the traction rod 25 far from the connecting rod 24 is eccentrically hinged to the driving wheel 23, and the rotation axes of the two ends of the traction rod 25 are parallel to the rotation axis of the driving wheel 23. By moving the connecting rod 24, the operator will rotate the driving wheel 23 via the traction rod 25 by moving the connecting rod 24, so that the receiving part 22 will slide.

Extension piece 21 in this embodiment includes two parallel extension boards 211, and two extension boards 211 interval set up and tip interconnect, and connecting rod 24, traction lever 25 and drive wheel 23 all are located between two extension boards 211, and connecting rod 24 respectively with the extension board 211 sliding connection of both sides.

Referring to fig. 3, fixing plates 221 are respectively fixed on two sides of the receiving portion 22, the arrangement direction of the two fixing plates 221 is perpendicular to the sliding direction of the receiving portion 22, two clamping blocks 222 are arranged between the two fixing plates 221, the arrangement direction of the two clamping blocks 222 is the same as the arrangement direction of the two fixing plates 221, the two clamping blocks 222 are connected with the receiving portion 22 in a sliding manner, and the resiliometer body 1 is located between the two clamping blocks 222.

Referring to fig. 3, a fourth elastic member is disposed between each clamping block 222 and the fixing plate 221 on the same side, the fourth elastic member is an elastic plate 223 disposed in an arc shape in this embodiment, two elastic plates 223 protrude toward a direction approaching each other, and each elastic plate 223 abuts between the clamping block 222 and the fixing plate 221 on the same side. The elastic force provided by the elastic plate 223 drives the two clamping blocks 222 to clamp the resiliometer body 1, so that the position of the resiliometer body 1 on the receiving portion 22 is more stable, and meanwhile, the resiliometer body 1 can be detached from the receiving portion 22.

The inclined surfaces 2221 are respectively arranged on the sides, close to each other, of the two clamping blocks 222, the inclined surfaces 2221 on the two clamping blocks 222 are obliquely and downwards arranged towards the direction, close to each other, of the two clamping blocks, and the resiliometer body 1 can be more conveniently clamped between the two clamping blocks 222 through abutting against the inclined surfaces 2221.

The two clamping blocks 222 are further provided with abutting surfaces 2222 on the sides close to each other, the abutting surfaces 2222 are located on the sides, close to the bearing part 22, of the side walls, provided with the inclined surfaces 2221, of the clamping blocks 222, the abutting surfaces 2222 are arranged in a circular arc shape, and the radius corresponding to the abutting surfaces 2222 is the same as the radius of the cross section of the resiliometer body 1. After the resiliometer body 1 is clamped between the two clamping blocks 222, the clamping blocks 222 are respectively attached to the abutting surfaces 2222 of the two clamping blocks 222, so that the clamping blocks 222 can have a larger contact area with the resiliometer body 1, and the position stability of the resiliometer body 1 on the bearing part 22 is improved.

One end of the receiving portion 22 is fixedly connected with a baffle 224, and when the resiliometer body 1 is positioned on the receiving portion 22, the baffle 224 is used for abutting against one end of the resiliometer body 1 which is not abutted against the concrete member. The reaction force received by the resiliometer body 1 is mainly borne by the baffle 224, and does not depend on the friction force between the clamping block 222 and the resiliometer body 1, so that the relative sliding between the resiliometer body 1 and the clamping block 222 is avoided.

Referring to fig. 1 and 4, a lifting assembly 4 for vertically moving the extension member 21 is disposed on the chassis 31, the lifting assembly 4 includes a mounting plate 41 vertically slidably disposed on the chassis 31, and the bottom end of the extension member 21 is disposed on the mounting plate 41. Vertical running through has a screw rod 42 on the mounting disc 41, screw rod 42 rotates with mounting disc 41 to be connected and with chassis 31 threaded connection, the many gag lever posts 43 of fixedly connected with still on the mounting disc 41, gag lever post 43 sets up to three in this embodiment, three gag lever posts 43 are at the equal angular interval distribution of mounting disc 41 upper circumference, gag lever post 43 and screw rod 42 are parallel and slide and wear to establish mounting disc 41, screw rod 42 is under the limiting displacement of gag lever post 43 after the rotation, mounting disc 41 will drive three gag lever post 43 vertical movement. The top end of the screw rod 42 passes through the mounting plate 41 and is connected with a hand crank 44, and the screw rod 42 can be continuously rotated through the hand crank 44.

Referring to fig. 5, a limiting hole 311 is formed in the mounting plate 41 corresponding to each limiting rod 43, the limiting rods 43 pass through the mounting plate 41 through the corresponding limiting holes 311, and the outer walls of the limiting rods 43 are attached to the inner walls of the limiting holes 311. Spacing hole 311's inner wall sliding fit is equipped with a first locating axle 312, first locating axle 312 slides along spacing hole 311's is radial, a plurality of first locating holes 431 have been seted up on the outer wall of gag lever post 43, a plurality of first locating holes 431 all can be pegged graft with first locating axle 312 and cooperate, a plurality of first locating holes 431 are located one side that gag lever post 43 contradicted with first locating hole 312, and vertical evenly distributed, first locating shaft 312 is located first locating hole 431 and follows the orbit that gag lever post 43 removed.

The inner wall of the limiting hole 311 is provided with a mounting hole 313 for the first positioning shaft 312 to be slidably inserted, a first elastic member is disposed in the mounting hole 313, the first elastic member is used for driving the first positioning shaft 312 to slide out of the first positioning hole 431, and the first elastic member is a first spring 314 in this embodiment. One end of the first positioning shaft 312 sliding out of the first positioning hole 431 is round-headed.

In the process of vertical movement of the limiting rod 43, the first positioning shafts 312 face the plurality of jacks one by one, under the action of the elastic force of the first springs 314, the first positioning shafts 312 are embedded into the first positioning holes 431 which face the first positioning shafts, then the limiting rod 43 continues to move to enable the first positioning shafts 312 to be separated from the first positioning holes 431, at the moment, the rotating screw 42 increases certain resistance, for detecting measuring points with different height at the same measuring area, an operator can refer to the intermittently increased resistance, and the distance between the measuring points with different height can be quickly determined.

Referring to fig. 5, a cavity 411 is formed in the mounting disc 41, an adjusting assembly 5 is arranged in the cavity 411, the adjusting assembly 5 includes a rotating ring 51 rotatably sleeved on the screw rod 42, a top end of the rotating ring 51 penetrates out of the outer side of the mounting disc 41, a rotating rod 52 is fixedly connected to an outer wall of the rotating ring 51, and the rotating rod 52 extends along a radial direction of the rotating ring 51. Slide in the cavity 411 and be provided with a connecting axle 53, the vertical setting of axis of connecting axle 53, the bottom of connecting axle 53 slides and inlays and establish on the interior diapire of mounting groove, and the top of connecting axle 53 is worn out the top side of mounting disc 41, and the bottom of extension 21 is passed through connecting axle 53 and is connected with mounting disc 41, sets up the through-hole that supplies connecting axle 53 to wear out and follow rectilinear movement on the mounting disc 41.

The connecting shaft 53 vertically penetrates through the rotating rod 52, a strip-shaped connecting hole 521 through which the connecting shaft 53 penetrates is formed in the rotating rod 52, and the connecting hole 521 extends along the length direction of the rotating rod 52. Rotating the rotating lever 52 can drive the connecting shaft 53 to move linearly, so that the extending member 21 together with the resiliometer body 1 can move in the horizontal direction. When detecting different measuring points at the same height in one measuring area, an operator can only move the extension piece 21 independently to change the measuring point opposite to the resiliometer body 1, and the measuring point is more convenient and fast compared with the movable base 3.

It is worth saying that one end that connecting axle 53 wore out from mounting disc 41 is fixedly connected with connecting portion 531, refer to fig. 5, and extension 21 passes through the bolt fastening on connecting portion 531, and after detecting, can be with extension 21 and connecting portion 531 split in order to conveniently accomodate.

Referring to fig. 5, a positioning plate 54 is further fixedly connected in the cavity 411, the rotating ring 51 is located between two ends of the rotating rod 52, the positioning plate 54 is located on one side of the rotating ring 51 away from the connecting shaft 53, the positioning plate 54 is arranged in an arc shape, an axis corresponding to the positioning plate 54 is the same as a rotating axis of the rotating rod 52, and one end of the rotating rod 52 away from the connecting shaft 53 is in sliding contact with a side wall of the positioning plate 54, which is recessed inwards.

A second positioning shaft 522 is slidably embedded in an end portion of the rotating rod 52 abutting against the positioning plate 54, the second positioning shaft 522 slides along an extending direction of the rotating rod 52, and a second elastic member is disposed in the rotating rod 52, in this embodiment, the second elastic member is a second spring 523, and the second spring 523 is used for driving the second positioning shaft 522 to slide out of the rotating rod 52. A plurality of second locating holes 541 have been seted up to one side of the locating plate 54 indent, namely a lateral wall of locating plate 54 and dwang 52 butt, and a plurality of second locating holes 541 are arranged along the curved extending direction circumference interval of locating plate 54, and the tip of second location axle 522 roll-off dwang 52 is the button head setting, and second location axle 522 and every second locating hole 541 all can peg graft the cooperation. When the second positioning shaft 522 is embedded into one second positioning hole 541, the resiliometer body 1 faces a measuring point on the concrete member, so that an operator can conveniently and quickly determine the positions of a plurality of measuring points at the same position height.

Referring to fig. 5 and 6, the crank handle 44 includes a connecting cylinder 441 and a rocking part 442 fixed to the connecting cylinder 441, and the connecting cylinder 441 is rotatably fitted over the top end of the screw rod 42 and is slidable in the axial direction of the screw rod 42. The top of screw rod 42 is interior cavity setting, is equipped with the joint axle 421 that is used for with connecting cylinder 441 joint in the screw rod 42, and joint axle 421 sets up to two in this embodiment, and two joint axle 421 circumference equiangular interval distribute. Each clamping shaft 421 is rotatably connected with the inner wall of the screw rod 42, the rotating axis of the clamping shaft 421 is perpendicular to the axis of the screw rod 42, and two ends of the clamping shaft 421 are respectively located at the inner side and the outer side of the screw rod 42.

A strip-shaped through hole is formed in the side wall of the screw rod 42 corresponding to each clamping shaft 421, and one end of each clamping shaft 421, which is provided by the through hole, extends out of the screw rod 42 and can rotate. In this embodiment, the high end of the clamping shaft 421 is located inside the screw rod 42, and the low end of the clamping shaft 421 is located outside the screw rod 42 and abuts against the inner wall of the connecting cylinder 441. Two clamping grooves 4411 are formed in the inner wall of the connecting cylinder 441 at equal angular intervals in the circumferential direction, the clamping grooves 4411 are arranged in a strip shape, the length of each clamping groove 4411 extends in the direction parallel to the axis of the connecting cylinder 441, and one end of each clamping shaft 421, which rotates out of the screw rod 42, can be in inserted connection with any clamping shaft 421. After the end of the fastening shaft 421 passing through the screw rod 42 is inserted into the fastening groove 4411, the rotation and sliding of the connecting cylinder 441 on the screw rod 42 are both limited, and the screw rod 42 can be driven to rotate by rotating the hand crank 44.

The cross section of the outer wall of the top end of the rotating ring 51 is polygonal, in this embodiment, a regular hexagon is taken as an example, and the bottom end of the connecting cylinder 441 is sleeved on the top end of the rotating ring 51 and is in insertion fit with the top end of the rotating ring 51. When the rotating rod 52 needs to be rotated, the clamping shaft 421 is rotated to enable the end part of the clamping shaft in the clamping groove 4411 to be rotated into the screw rod 42, the position constraint of the connecting cylinder 441 is released, an operator moves the connecting cylinder 441 downwards and sleeves the top end of the rotating ring 51, the rotating rod 52 can be rotated independently through the hand crank 44, and the rebound apparatus body 1 can move in the horizontal direction.

Referring to fig. 6, a third elastic member is disposed between a high end of each clamping shaft 421 and an inner wall of the screw 42, and the third elastic member is used for driving the clamping shaft 421 to rotate, so that an end portion of the clamping shaft 421 located outside the screw 42 is separated from the clamping groove 4411. In this embodiment, the third elastic member is configured as an elastic piece 422, the elastic piece 422 is bent, one part of the elastic piece 422 is fixed on the inner wall of the screw 42, and the other part of the elastic piece 422 is connected with the end of the fastening shaft 421.

The screw rod 42 is further provided with a butting block 423 in an embedded mode in a sliding mode, the butting block 423 moves along the axis of the screw rod 42, the butting block 423 is located below the high end of the clamping shaft 421, and when the low end of the clamping shaft 421 is embedded in the clamping groove 4411, the high end of the clamping shaft 421 is located in the moving track of the butting block 423. Fixedly connected with application of force portion 424 on the butt piece 423, the vertical top of following the screw rod 42 of application of force portion 424 is worn out, operating personnel passes through application of force portion 424 pulling butt piece 423, and butt piece 423 continues to move behind the high-end that butts joint axle 421, and two joint axles 421 will rotate simultaneously, and the low side of joint axle 421 will deviate from the joint groove 4411 of locating and change over into the screw rod 42 in, and operating personnel alright now overlaps connecting cylinder 441 on the top of swivel 51.

The implementation principle of the embodiment of the application is as follows: when detecting the compressive strength of the concrete member at a high position, an operator fixes the resiliometer body 1 on the receiving part 22 of the extension part 21, the receiving part 22 drives the resiliometer body 1 to reciprocate by moving the connecting rod 24, the resiliometer body 1 can abut against the concrete member to generate data, and then the next measuring point is detected by keeping away from the concrete member.

An operator rotates the screw 42 to lift the mounting disc 41, so that the height position of the resiliometer body 1 is changed, and the resiliometer body 1 can detect measuring points at different height positions. An operator can slide the connecting shaft 53 by rotating the rotating rod 52, so that the resiliometer body 1 slides upwards horizontally, and the resiliometer body 1 can detect different measuring points at the same height position.

The embodiment of the application further provides a detection method of the concrete compressive strength in-situ detection device.

A detection method of a concrete compressive strength in-situ detection device comprises the following steps:

s1, setting initial parameters of the resiliometer body 1, then mounting the resiliometer body 1 on the receiving portion 22, clamping the resiliometer body 1 on the receiving portion 22 using the two abutting blocks 423, and abutting the end of the resiliometer body 1 where the tapping rod 12 is provided against the concrete member to be measured, with the other end of the resiliometer body 1 abutting against the baffle 224.

S2, the link lever 24 is moved to rotate the drive wheel 23, so that the socket 22 moves in the direction of the concrete member, and after the tapping rod 12 is retracted into the resiliometer body 1, the link lever 24 is moved in the reverse direction to move the socket 22 back to the initial position.

S3, changing positions of the measuring points, wherein the measuring points in the same measuring area are distributed in a groined shape in the embodiment, and the method specifically comprises the following steps:

s31, rotating the screw 42 through the hand crank 44 to lift the mounting plate 41, changing the height position of the resiliometer body 1, and then repeating the step S2;

s32, rotating the rotating lever 52 by the hand lever 44 to horizontally move the extension piece 21, and then repeating step S2, wherein the sequence of step S32 and S31 can be interchanged;

and S33, recording whether the number of the detected measuring points meets the requirement, if so, carrying out S4, otherwise, repeating the steps S2-S3 until the detection times of one measuring area meet the requirement.

S4, changing the positions of the measurement areas, the measurement areas detected in this embodiment are arranged at intervals along the horizontal direction, and the specific steps are as follows:

s41, horizontally moving the base 3, and moving the resiliometer body 1 to a position corresponding to the next measuring area;

and S42, recording whether the number of the detected detection areas meets the requirement, if so, carrying out S5, otherwise, repeating the steps S2-S4 until the required number of the detection areas is reached.

S5, the resiliometer body 1 is detached from the receiving portion 22, the data recorded in the resiliometer body 1 is derived, the extension piece 21 is separated from the connecting portion 531, and the resiliometer body 1, the extension piece 21, the base 3, and the accompanying members are housed separately.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a concrete compressive strength normal position detection device, includes resiliometer body (1), its characterized in that: the rebound tester is characterized by further comprising a base (3) and an extension piece (21) with one end arranged on the base (3), wherein one end, far away from the base (3), of the extension piece (21) is connected with a bearing part (22) in a sliding mode, the rebound tester body (1) is detachably mounted on the bearing part (22), and the sliding direction of the bearing part (22) and the length direction of the extension piece (21) are arranged in a crossed mode; a driving wheel (23) is rotatably connected to the extending piece (21), one side, close to the base (3), of the driving wheel (23) is meshed with one side, close to the base (3), of the bearing part (22), a connecting rod (24) is arranged on the extending piece (21) in a sliding mode, a traction rod (25) is hinged to one end, close to the bearing part (22), of the connecting rod (24), and the traction rod (25) is eccentrically and rotatably connected with the driving wheel (23); the base (3) is also provided with a lifting component (4) used for driving the extension piece (21) to move vertically.

2. The in-situ concrete compressive strength detection device according to claim 1, wherein: lifting unit (4) set up mounting disc (41) on base (3) including vertical removal, extension (21) set up on mounting disc (41), threaded connection has screw rod (42) of being connected with mounting disc (41) rotation on base (3), be equipped with gag lever post (43) parallel with screw rod (42) on mounting disc (41), gag lever post (43) vertical slip sets up on base (3), mounting disc (41) are passed and are equipped with crank (44) on the top of screw rod (42), extension (21) are located outside the rotation orbit of crank (44).

3. The in-situ detection device for the compressive strength of concrete according to claim 2, wherein: extend piece (21) horizontal migration on mounting disc (41), be equipped with on mounting disc (41) and be used for removing adjusting part (5) that extend piece (21), cavity (411) have been seted up in mounting disc (41), adjusting part (5) are including rotating dwang (52) of connecting in cavity (411), it is provided with connecting axle (53) to slide in cavity (411), the slip direction of connecting axle (53) is perpendicular with the axis of rotation of dwang (52), connecting axle (53) pass dwang (52) and with dwang (52) sliding connection, connecting axle (53) are worn out cavity (411) and are connected with extension piece (21).

4. The in-situ concrete compressive strength detection device according to claim 3, wherein: a rotating ring (51) which is connected with the rotating rod (52) and is rotatably sleeved on the screw rod (42) is arranged in the cavity (411), the top end of the rotating ring (51) penetrates out of the cavity (411), the hand crank (44) comprises a connecting cylinder (441) which is rotatably sleeved on the top end of the screw rod (42), the cross section of the outer wall of the top end of the rotating ring (51) is polygonal, and the bottom end of the connecting cylinder (441) is in plug fit with the rotating ring (51); the screw rod (42) is internally and hollow and is rotatably connected with a clamping shaft (421), a rotating axis of the clamping shaft (421) is positioned between two ends of the clamping shaft (421) and is vertical to the axis of the screw rod (42), two ends of the clamping shaft (421) are respectively positioned at the inner side and the outer side of the screw rod (42), and the inner wall of the connecting cylinder (441) is provided with a clamping groove (4411) which is clamped with one end of the clamping shaft (421) penetrating out of the screw rod (42); the screw rod (42) is internally provided with a butt joint block (423) in a sliding manner along the axial direction of the screw rod (42), the butt joint block (423) is used for being in butt joint with one end, located in the screw rod (42), of the clamping shaft (421), a force application part (424) penetrating out of the screw rod (42) is arranged on the butt joint block (423), and the inner wall of the screw rod (42) is further provided with a third elastic piece driving the end part of the clamping shaft (421) to be embedded into the clamping groove (4411).

5. The in-situ concrete compressive strength detection device according to claim 3, wherein: be equipped with locating plate (54) that the arc set up in cavity (411) of mounting disc (41), the axis that locating plate (54) corresponds is the same with the axis of dwang (52), the one end of dwang (52) slides and is provided with second location axle (522), second location axle (522) contradicts with a lateral wall of locating plate (54) indent, circumference interval has seted up a plurality of second locating holes (541) on the lateral wall that locating plate (54) contradict with second location axle (522), second locating hole (541) and second location axle (522) grafting cooperation, just to a plurality of second locating holes (541) second location axle (522) one by one in dwang (52) pivoted process, be equipped with the second elastic component that orders about second location axle (522) embedding second locating hole (541) on dwang (52).

6. The in-situ detection device for the compressive strength of concrete according to claim 2, wherein: offer on base (3) and supply spacing hole (311) that gag lever post (43) slip to inlay and establish, slip on the inner wall of spacing hole (311) and inlay and be equipped with first locating shaft (312), spacing along self length direction is equipped with a plurality of first locating holes (431) on gag lever post (43) at a distance from, first locating shaft (312) and first locating hole (431) are pegged graft the cooperation, a plurality of first locating holes (431) are just right with first locating shaft (312) one by one at gag lever post (43) slip in-process, be equipped with the first elastic component that is used for ordering about first locating shaft (312) embedding first locating hole (431) on the inner wall of spacing hole (311).

7. The in-situ detection device for the compressive strength of concrete according to claim 1, wherein: the bearing part (22) is provided with clamping blocks (222) on two sides which are arranged in a direction perpendicular to the sliding direction of the bearing part, one side, opposite to the two clamping blocks (222), of each clamping block is provided with an inclined surface (2221) which inclines downwards towards the direction in which the two clamping blocks are close to each other, one side, provided with the inclined surface (2221), of each clamping block (222) is also provided with an arc-shaped abutting surface (2222), each abutting surface (2222) is located on one side, close to the bearing part (22), of each clamping block (222), the two sides of the bearing part (22) are provided with fourth elastic parts respectively, and each fourth elastic part is used for driving the adjacent clamping blocks (222) to move towards the other clamping block (222).

8. The in-situ concrete compressive strength detection device according to claim 7, wherein: one end of the bearing part (22) is provided with a baffle (224) used for being abutted against the resiliometer body (1).

9. The method for detecting the in-situ concrete compressive strength detection device according to any one of claims 1 to 8, wherein:

s1, setting initial parameters of the resiliometer body (1), and then installing the resiliometer body (1) on the bearing part (22);

s2, moving the connecting rod (24) to rotate the driving wheel (23), so that the bearing part (22) moves towards the direction of the concrete member, and moving the connecting rod (24) in the reverse direction after the resiliometer body (1) abuts against the concrete member;

s3, changing the position and height of the resiliometer body (1) through the lifting assembly (4), and repeating the step S2, or horizontally moving the base (3) and repeating the step S2 until the required detection times are reached.