CN217738850U

CN217738850U - Concrete test block strength detection device

Info

Publication number: CN217738850U
Application number: CN202221193606.8U
Authority: CN
Inventors: 杨亚东
Original assignee: Chongqing Fangjun Construction Engineering Consulting Co ltd
Current assignee: Chongqing Fangjun Construction Engineering Consulting Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-11-04
Anticipated expiration: 2032-05-18

Abstract

The utility model provides a concrete test block intensity detection device relates to construction detection technical field, include: the device comprises a rack, a press and a centering unit, wherein the press is installed on the rack; the centering unit comprises a clamping module, a lifting module and a driving module, wherein the clamping module is connected to the rack in a sliding mode, the clamping module is provided with four and evenly distributed on the ring side of the driving module, the clamping module is connected with the lifting module in a rotating mode through a connecting rod, the driving module is connected with the lifting module and used for driving the lifting module to move up and down and further drive the clamping module to move in opposite directions or deviate from the motion. It has solved the difficult problem of centering among the prior art in the concrete test block pressure measurement process.

Description

Concrete test block strength detection device

Technical Field

The utility model belongs to the technical field of the construction detection technique and specifically relates to a concrete test block intensity detection device is related to.

Background

Concrete plays an important role in civil engineering, and the compressive strength of the concrete directly influences the construction quality of buildings, so that the compressive strength of a concrete test block of a square body needs to be detected before the concrete leaves a factory. At present, a concrete press machine is mainly adopted to carry out pressure detection on a concrete test block.

When carrying out pressure detection at the concrete test block of the cube among the prior art, need measurement personnel earlier with the concrete test block manual handling to detecting the seat on to need the position of adjustment concrete test block on detecting the seat, until the central geometry centering of the center of concrete test block and clamp plate, whole process need judge through the people's eye whether accurate in position, lead to the difficult centering of concrete test block pressure measurement in-process.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a concrete test block intensity detection device, it has solved the difficult problem of centering among the prior art in the concrete test block pressure measurement process.

According to the utility model discloses an embodiment, a concrete test block intensity detection device, include:

a table, a press and a centering unit, wherein,

the press is arranged on the rack;

the centering unit comprises a clamping module, a lifting module and a driving module, wherein the clamping module is connected to the rack in a sliding mode, the clamping module is provided with four and evenly distributed on the ring side of the driving module, the clamping module is connected with the lifting module in a rotating mode through a connecting rod, the driving module is connected with the lifting module and used for driving the lifting module to move up and down and further drive the clamping module to move in opposite directions or deviate from the motion.

Compared with the prior art, the utility model discloses following beneficial effect has: the pressure head of the press machine is adjusted to be right above a geometric center when each clamping module is embraced before use, then the driving module drives the lifting module to move downwards, namely the four clamping modules can be pulled to move oppositely through the connecting rod until the clamping modules are embraced, the inner walls of the four clamping modules push the concrete test block to move in the process so as to finely adjust the position of the concrete test block, finally, the geometric center of the concrete test block and the geometric center of a square cavity surrounded by the four clamping modules are positioned on the same vertical line, centering operation of the concrete test block is completed, and the pressure head of the press machine can move downwards to perform pressure test on the concrete test block; by adopting the scheme, the concrete test block is roughly placed on the rack manually or mechanically, the position of the concrete test block can be automatically corrected by the four clamping modules, and the centering of the concrete test block is convenient and fast.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a front view of fig. 1.

In the drawings, wherein: 1. a rack; 101. a platform; 102. a support leg; 103. a chute; 2. a press machine; 3. a clamping module; 301. a flat plate; 302. connecting blocks; 4. a lifting module; 401. a guide bar; 402. a sliding block; 5. a drive module; 6. a connecting rod; 601. a fixed cylinder; 602. an adjustment cylinder.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1, a concrete test block strength detecting device includes:

a table 1, a press 2 and a centring unit, wherein,

the press machine 2 is arranged on the rack 1 through the portal frame, the portal frame ensures that one clamping module 3 can smoothly pass through the portal frame, the axis of a press head of the press machine 2 is coaxial with the center line of each clamping module 3 when the press head is mounted, the structure of the press machine 2 is the prior art, and the repeated description is omitted here;

the centering unit comprises clamping modules 3, lifting modules 4 and driving modules 5, wherein the clamping modules 3 are provided with four clamping modules and uniformly distributed on the ring side of the driving modules 5, four the clamping modules 3 are pairwise connected into a group, two groups of clamping modules 3 are respectively connected onto the rack 1 in a transverse and longitudinal sliding mode, the clamping modules 3 are rotatably connected with the lifting modules 4 through connecting rods 6, and the driving modules 5 are connected with the lifting modules 4 and used for driving the lifting modules to move up and down and further driving the clamping modules 3 to move oppositely or deviate from each other.

Before the press machine is used, a press head of the press machine 2 is adjusted to be right above a geometric center of each clamping module 3 during embracing so as to align the two, then the driving module 5 drives the lifting module 4 to move downwards, namely the four clamping modules 3 can be pulled to move oppositely through the connecting rod 6 until the clamping modules are embraced, in the process, the inner walls of the four clamping modules 3 push the concrete test block to move so as to finely adjust the position of the concrete test block, finally, the geometric center of the concrete test block and the geometric center of a square cavity enclosed by the four clamping modules 3 are positioned on the same vertical line, and at the moment, the press head of the press machine 2 can move downwards to carry out pressure test on the concrete test block; by adopting the scheme, the concrete test block is roughly placed on the rack 1 manually or mechanically, the position of the concrete test block is automatically corrected through the four clamping modules 3, and the centering of the concrete test block is convenient and fast.

Further, the rack 1 comprises a platform 101 and supporting legs 102 fixedly arranged at the bottom end of the platform 101, wherein four vertically through sliding grooves 103 are formed in the platform 101, and two adjacent sliding grooves 103 are perpendicular to each other;

each clamping module 3 comprises a flat plate 301 and a connecting block 302 fixedly arranged at the bottom end of the flat plate 301, the flat plate 301 and the connecting block 302 form a T-shaped structure, and each connecting block 302 penetrates into each sliding groove 103 and is connected with the sliding groove 103 in a sliding manner; the arrangement makes the structure of the clamping module 3 simple and the assembly and disassembly of the clamping module and the rack 1 convenient.

As shown in fig. 1, the present invention provides another embodiment, which is based on the above structure, wherein two edges of each flat plate 301 are provided with vertically extending notches, and the edges of two adjacent flat plates 301 can be mutually overlapped and fastened; when the four flat plates 301 are mutually embraced, the notches play a role in splicing and sealing, and crushed concrete test blocks are prevented from flying out from gaps between the flat plates 301 to hurt people.

Further, as shown in fig. 1 and fig. 2, the lifting module 4 includes a guide rod 401 and a sliding block 402, the guide rod 401 is vertically installed on the rack 1, the sliding block 402 is sleeved outside the guide rod 401 and is in clearance fit with the guide rod 401, four support lugs are fixedly arranged around the sliding block 402, the number of the connecting rods 6 is four, and two ends of each connecting rod 6 are respectively rotatably connected with each support lug and each connecting block 302 through a pin shaft.

Above-mentioned setting up on the one hand because the vertical link up of spout 103 provides the space for connecting rod 6's luffing motion, on the other hand spout 103 plays limiting displacement to connecting block 302, avoids connecting block 302 drunkenness from front to back, and the bottom of flat board 301 and connecting rod 6 limit connecting block 302 drunkenness from top to bottom, and connecting block 302 motion is stable.

Further, an external thread is arranged on the guide rod 401 and is in threaded connection with the sliding block 402, the upper end and the lower end of the guide rod 401 are rotatably connected to the rack 1 through a conventional bearing, the driving module 5 comprises a speed reduction motor, and the speed reduction motor is connected with one end of the guide rod 401 through a conventional coaxial device to drive the guide rod to rotate forwards or backwards; because the sliding grooves 103 limit the front and back movement of the connecting blocks 302, the sliding blocks 402 are prevented from rotating around the guide rod 401 together, and the sliding blocks 402 can be correspondingly driven to move up and down (referring to the working principle of the lead screw) by driving the guide rod 401 to rotate forward and backward by the speed reducing motor; of course, the driving module 5 is not limited to the above-mentioned embodiment, and for example, the guide rod 401 may be vertically fixed on the platform 1, and the output end of the linear driving mechanism, such as an electric push rod/hydraulic cylinder, is fixedly connected to the sliding block 402, so as to drive the sliding block 402 to move upward or downward.

As shown in fig. 2, the present invention further provides another embodiment, the connecting rod 6 includes a fixing cylinder 601 and an adjusting cylinder 602, the fixing cylinder 601 has an internal thread, one end of the adjusting cylinder 602 has an external thread, and the end extends into the adjusting cylinder 602 to connect the two through threads; the whole length of connecting rod 6 can be changed to operating personnel precession or screw out of adjusting cylinder 602, and then changes the appearance chamber size that the centre gripping module 3 encloses, makes things convenient for the not concrete test block of equidimension of centre gripping, has strengthened the commonality of device.

The working process of the utility model is as follows,

as shown in fig. 1 and fig. 2, before detection, the pressure head of the press 2 is adjusted to be opposite to the center of the platform 101, and then a concrete test block is manually or mechanically placed at the center of the platform 101; then, the guide rod 401 is driven by the reducing motor to rotate forwards to drive the sliding block 402 to move downwards, the sliding block 402 pulls the flat plates 301 to gather together in opposite directions through the connecting rod 6, the inner wall of each flat plate 301 is in contact with the outer wall of the concrete test block and pushes the concrete test block to move in the process, fine adjustment and correction of the position of the concrete test block are achieved, when the four flat plates 301 are cohered, the geometric center of the concrete test block is aligned with the pressure head of the press machine 2 up and down, the drive head of the press machine 2 moves downwards to detect the strength of the concrete test block, and the edges of the flat plates 301 are lapped and buckled with each other, so that the crushed concrete test block is prevented from splashing from edge gaps of the press plate; in practice, the adjusting cylinder 602 can be screwed in or out to adjust the length of the connecting rod 6, so as to clamp and align concrete test blocks with different sizes.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a concrete test block intensity detection device which characterized in that includes: a table (1), a press (2) and a centering unit, wherein,

the press machine (2) is arranged on the rack (1);

the centering unit comprises a clamping module (3), a lifting module (4) and a driving module (5), wherein the clamping module (3) is connected to the rack (1) in a sliding mode, the clamping module (3) is provided with four uniform distribution blocks on the ring side of the driving module (5), the clamping module (3) is connected with the lifting module (4) in a rotating mode through a connecting rod (6), and the driving module (5) is connected with the lifting module (4) to drive the lifting module to move up and down and further drive the clamping module (3) to move oppositely or deviate from the lifting module.

2. The concrete test block strength detection device according to claim 1, wherein the rack (1) comprises a platform (101) and support legs (102) fixedly arranged at the bottom end of the platform (101), four vertically through sliding grooves (103) are formed in the platform (101), and two adjacent sliding grooves (103) are perpendicular to each other;

each clamping module (3) comprises a flat plate (301) and connecting blocks (302) fixedly arranged at the bottom end of the flat plate (301), and each connecting block (302) penetrates into each sliding groove (103) and can slide relatively.

3. The concrete test block strength detection device according to claim 2, wherein the edge of each flat plate (301) is provided with a vertically extending notch, and the edges of two adjacent flat plates (301) can be mutually overlapped and buckled.

4. The concrete test block strength detection device according to claim 2 or 3, wherein the lifting module (4) comprises a guide rod (401) and a sliding block (402), the guide rod (401) is vertically installed on the rack (1), the sliding block (402) is sleeved outside the guide rod (401) and is in clearance fit with the guide rod and the sliding block, support lugs are fixedly arranged around the sliding block (402), and two ends of the connecting rod (6) are respectively and rotatably connected with the support lugs and the connecting block (302) through pin shafts.

5. The concrete test block strength detection device according to claim 4, wherein the guide rod (401) is provided with an external thread and is in threaded connection with the sliding block (402), the guide rod (401) is rotatably connected to the rack (1), the driving module (5) comprises a speed reduction motor, and the speed reduction motor is connected with one end of the guide rod (401) to drive the guide rod to rotate forward or backward.

6. The concrete test block strength detection device according to any one of claims 1 to 3, wherein the connecting rod (6) comprises a fixed cylinder (601) and an adjusting cylinder (602), the fixed cylinder (601) is provided with internal threads, one end of the adjusting cylinder (602) extends into the adjusting cylinder (602) and the two are in threaded connection.