CN117074160A - Concrete test piece intensity detection device - Google Patents

Abstract

The utility model provides a concrete test piece intensity detection device, includes the support frame, install the driver on the support frame, install the depression bar on the driver, the depression bar rotates and runs through support frame upper portion, depression bar one end rigid coupling has the hand wheel, the depression bar other end is provided with a clamp plate, the equal rigid coupling of clamp plate both sides has a symmetric distribution be used for restricting a clamp plate pivoted gag lever post, the rigid coupling has No. two clamp plates on the support frame, be provided with the adjustment mechanism who is used for adjusting concrete test piece position on No. two clamp plates. Through holding the holding rod and rotating a fixed frid, three slider inwards move and fix a position the concrete sample under No. two spout effects, make the concrete sample center with the depression bar center alignment of top, the slider is cliied the concrete sample simultaneously and is fixed, has effectively avoided the concrete sample displacement in the testing process.

Description

Concrete test piece intensity detection device

Technical Field

The invention relates to a strength detection device, in particular to a strength detection device for a concrete test piece.

Background

The concrete is an engineering material which is prepared from cement, aggregate and water as main raw materials according to a certain mixing proportion and has strength after hardening through processes such as mixing, molding, curing and the like, and the concrete test piece is commonly called a test block, is one of important samples for quality detection of engineering main bodies, and is prepared into the concrete test piece by extracting materials from the concrete to be detected, and the strength detection is carried out to obtain test data, so that whether the strength of the concrete meets the requirement can be verified.

Patent grant bulletin number CN 111044356A's patent discloses a concrete pressure testing arrangement, this patent is through placing the concrete test block on the briquetting down, and control the actuating cylinder makes the push rod drive go up the briquetting and exert pressure to the concrete test block downwards, so carry out the pressure test, then motor two drive lead screw clockwise rotation, make last protection casing downwardly moving cover the protection casing, the piece splashes when preventing the concrete test block breakage, but this patent still exists not enough when in-service use, when the manual work is placed the concrete test block on the briquetting down, can't guarantee that concrete test block center aligns with the briquetting center, the uneven condition of atress appears in the concrete test block when detecting, thereby influence the compressive strength detection accuracy of concrete test piece.

It is therefore desirable to provide a concrete test piece strength detection device that can locate a concrete test piece and ensure that the concrete test piece is at the center of pressure.

Disclosure of Invention

In order to overcome the defect that the compressive strength detection accuracy of a concrete test piece is affected due to uneven stress of the concrete test piece caused by the fact that the center of the concrete test piece cannot be aligned with the center of a pressing block when the concrete test piece is manually placed on the pressing block in the patent, the invention provides a concrete test piece strength detection device capable of positioning the concrete test piece and guaranteeing that the concrete test piece is positioned in the center of pressure.

In order to realize the problems, the invention adopts the following technical scheme: the utility model provides a concrete test piece intensity detection device, includes the support frame, install the driver on the support frame, install the depression bar on the driver, the depression bar rotates and runs through support frame upper portion, depression bar one end rigid coupling has the hand wheel, the depression bar other end is provided with a clamp plate, the equal rigid coupling of clamp plate both sides has a symmetric distribution be used for restricting a clamp plate pivoted gag lever post, the rigid coupling has No. two clamp plates on the support frame, be provided with the adjustment mechanism who is used for adjusting concrete test piece position on No. two clamp plates.

Further, adjustment mechanism is including a fixed frid, a fixed frid rotates to be connected No. two on the clamp plate, it has a plurality of runner No. two to open on the fixed frid No. one, no. two clamp plate tops are fixed with through a dead lever and are located No. two fixed frids of fixed frid top, and No. one dead lever lower part is in the below in No. two runners, it is provided with a plurality of slider to slide on the fixed frid No. two, the slider lower part is in the below in No. two runners slides, be provided with pressure sensing board on the fixed frid No. two, the rigid coupling has the holding rod on the fixed frid No. one.

Further, still including setting up be used for the protection machanism of protection on the support frame, protection machanism is including a three guard plate, and is three a guard plate sets up respectively a support frame front side and left and right sides, a rigid coupling has two second frid of symmetric distribution on the guard plate, sliding type is provided with rotatory dead lever in the frid, two of homonymy rotatory dead lever joint rotation is provided with No. two guard plates, no. two guard plate both sides equidistant interval rigid coupling has a plurality of clamping rod, a guard plate both sides equidistant interval rotation is provided with and is used for clamping a plurality of clamping rod a cardboard, a cardboard with a guard plate is connected with a torsion spring jointly, the left and right sides a guard plate joint sliding connection has the connecting rod, equidistant rigid coupling has four arm-tie on the connecting rod, four arm-tie are respectively distributed in the front side a guard plate both sides and left and right sides a wedge-tie plate rear side, equidistant be provided with a plurality of clamping plate a connecting plate a plurality of wedge-tie plate and a plurality of wedge-tie plate are located respectively, a plurality of wedge-tie plate and a wedge-plate are located on two wedge-tie plate and a plurality of wedge-tie plate are located respectively.

Further, a first sliding groove is formed in the support frame and located below the second wedge-shaped block, and the lower portion of the second wedge-shaped block slides on the first sliding groove.

Further, the cleaning mechanism is arranged on the pressure sensing plate and used for cleaning the pressure sensing plate, the cleaning mechanism comprises two fixed sliding rails, the two fixed sliding rails are symmetrically fixedly connected on the pressure sensing plate, the two fixed sliding rails are jointly and slidably provided with a row brush used for cleaning the pressure sensing plate, the two fixed sliding rails are respectively and rotatably provided with a second clamping plate used for clamping the row brush, the second clamping plate is jointly connected with a second torsion spring with the fixed sliding rails, the second clamping plate is rotationally connected with a connecting rotating plate, the two connecting rotating plates are jointly and rotatably connected with a third pressing plate, the third pressing plate is fixedly connected with a first wedge block, a fixed block is fixedly connected on one side of the row brush, a guide rod is fixedly connected in the fixed sliding rail and is close to the fixed block, and the fixed block slides on the guide rod and is sleeved with a tension spring used for resetting the fixed block and the row brush.

Further, still including setting up be used for ejecting on the support frame the material returning mechanism of concrete test piece on the pressure sensing board, material returning mechanism is including the fixed plate, the fixed plate sets up on the support frame, the push rod is worn to be equipped with in the fixed plate slidingtype, the cover is equipped with on the push rod and is used for making the elastic component that the push rod reset, the pressure sensing board is last relatively push rod one side is provided with the stopper.

Further, an inclined plane is arranged on the limiting block.

Further, the concrete test piece collecting device comprises a collecting mechanism which is arranged on the supporting frame and used for collecting concrete test piece slag, the collecting mechanism comprises an inclined plane blanking box, the inclined plane blanking box is placed on the rear side of the second pressing plate, two buckles which are symmetrically distributed are fixedly connected on the supporting frame, the two buckles are jointly connected with a collecting box through clamping blocks, and one side of the collecting box is fixedly connected with a holding block.

Further, the device also comprises a data management mechanism which is arranged on the supporting frame and used for recording detection data, the data management mechanism comprises a control console, the control console is arranged on one side of the supporting frame, a control panel is arranged on the control console, and symmetrically distributed numerical adjusting rods are arranged on the control console.

Further, the device also comprises a blanking sloping plate, and the support frame is fixedly connected with the blanking sloping plate positioned between the second pressing plate and the collecting box.

Compared with the prior art, the invention has the following technical effects: 1. through holding the holding rod and rotating a fixed frid, three slider inwards move and fix a position the concrete sample under No. two spout effects, make the concrete sample center with the depression bar center alignment of top, the slider is cliied the concrete sample simultaneously and is fixed, has effectively avoided the concrete sample displacement in the testing process.

2. The first clamping plate is driven to rotate downwards through the pulling plate, the first clamping plate is pulled to rotate downwards through the second connecting plate, the clamping rod is loosened by the first clamping plate, the second protection plate is not fixed any more, and the third second protection plate moves downwards to the front side and the left side and the right side of the second pressing plate under the action of gravity, so that people around the concrete test piece can be effectively prevented from being splashed by broken slag during detection.

3. By pushing the push rod leftwards, the push rod leftwards pushes the concrete test piece on the pressure sensing plate to the limiting block, and the concrete test piece is jacked up under the action of the inclined plane of the limiting block so as to be taken out.

4. And when the pressure sensing plate receives a pressure signal during detection, the control panel detects the pressure condition of the concrete test piece, and the pressure condition of the concrete test piece when the concrete test piece breaks is recorded so as to determine the maximum bearing pressure of the concrete test piece.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the supporting frame and the adjusting mechanism of the present invention.

Fig. 3 is a schematic perspective exploded view of the adjustment mechanism of the present invention.

Fig. 4 is a schematic view of a partial perspective cutaway structure of the adjustment mechanism of the present invention.

Fig. 5 is a schematic perspective cross-sectional view of the protective mechanism and the cleaning mechanism of the present invention.

Fig. 6 is a schematic perspective cross-sectional view of the protective mechanism of the present invention.

Fig. 7 is an enlarged view of the invention at a in fig. 5.

Fig. 8 is an enlarged view of the present invention at B in fig. 5.

Fig. 9 is a schematic view of a partially cut-away perspective structure of the protective mechanism of the present invention.

Fig. 10 is a schematic perspective view of the guard mechanism and the cleaning mechanism of the present invention.

FIG. 11 is a schematic perspective cross-sectional view of the cleaning mechanism of the present invention.

Fig. 12 is an enlarged view of fig. 9C in accordance with the present invention.

Fig. 13 is a schematic view of a part of a cleaning mechanism according to the present invention.

Fig. 14 is an enlarged view of the invention at D in fig. 11.

Fig. 15 is a schematic perspective sectional view of the material returning mechanism and the data management mechanism of the present invention.

FIG. 16 is a schematic perspective cross-sectional view of the aggregate mechanism of the present invention.

Fig. 17 is an enlarged view of fig. 14 at E in accordance with the present invention.

Reference numerals: 1: support frame, 2: chute No. 3: driver, 4: compression bar, 5: hand wheel, 6: a first pressing plate, 7: limit lever, 8: no. two clamp plates, 9: adjustment mechanism, 901: fixed slot plate number one, 902: second chute, 903: number one fixed bar, 904: fixed frid No. two 905: slider, 906: pressure sensing plate, 907: grip, 10: protection mechanism, 1001: number one protection plate, 1002: no. two guard plates, 1003: clamping rod, 1004: card number one, 1005: torsion spring number one, 1006: a connection plate number one, 1007: pulling plate, 1008: connecting rod, 1009: pull rod, 1010: wedge, 1011: number two fluted plate, 1012: rotating fixing rod 1013: no. two wedge, 1014: no. two connecting plates, 11: cleaning mechanism, 1101: fixed slide rail, 1102: row brush 1103: no. three pressing plate, 1104: connection swivel plate, 1105: no. two cardboard, 1106: torsion spring No. two, 1107: fixed block, 1108: guide bar, 1109: tension spring, 12: material returning mechanism, 1201: fixing plate 1202: pushrod 1203: elastic piece, 1204: stopper, 13: aggregate mechanism, 1301: slope blanking box, 1302: aggregate box, 1303: holding block, 1304: fixture block, 1305: clasp, 14: data management mechanism 1401: console, 1402: control panel, 1403: numerical adjustment lever, 15: and (5) blanking sloping plates.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1 and 2, a concrete specimen strength detection device, which comprises a supporting frame 1, a driver 3 is installed at the top of the supporting frame 1, a compression bar 4 is installed on the driver 3, the driver 3 is used for driving the compression bar 4 to move up and down, the compression bar 4 rotates and penetrates through the upper portion of the supporting frame 1, a hand wheel 5 is fixedly connected to the top end of the compression bar 4 in a welding mode, a first pressing plate 6 is arranged at the bottom end of the compression bar 4, limit rods 7 which are symmetrically distributed and used for limiting the rotation of the first pressing plate 6 are fixedly connected to the front side and the rear side of the first pressing plate 6 in a welding mode, the rotation of the compression bar 4 can be prevented when the compression bar 4 moves up and down through the limit rods 7, a second pressing plate 8 is fixedly connected to the lower portion of the supporting frame 1 in a welding mode, an adjusting mechanism 9 is arranged on the second pressing plate 8, and the adjusting mechanism 9 is used for adjusting the position of a concrete specimen.

Referring to fig. 3 and 4, the adjusting mechanism 9 includes a first fixed slot plate 901, the first fixed slot plate 901 is rotatably connected to the second pressing plate 8, four second sliding slots 902 are formed in the first fixed slot plate 901, a second fixed slot plate 904 located above the first fixed slot plate 901 is fixed on the top of the second pressing plate 8 through a first fixed rod 903, and three sliding blocks 905 for clamping a concrete specimen are slidably disposed on the second fixed slot plate 904, the three sliding blocks 905 can be moved inwards by rotating the first fixed slot plate 901 to position the concrete specimen and clamp the concrete specimen, a pressure sensing plate 906 is disposed on the top of the second fixed slot plate 904 and is used for sensing the pressure of the concrete specimen, and a holding rod 907 is fixedly connected to the first fixed slot plate 901 in a sliding manner.

Referring to fig. 5, 6, 7, 8 and 9, the device further comprises a protection mechanism 10 disposed on the support frame 1, the protection mechanism 10 is used for protection, the protection mechanism 10 comprises three first protection plates 1001, the three first protection plates 1001 are disposed on the front side and the left and right sides of the support frame 1, two second slot plates 1011 symmetrically disposed on the first protection plates 1001 in a welding manner are fixedly connected, the two second slot plates 101 are in a vertical state, a rotation fixing rod 1012 is disposed in the second slot plates 1011 in a sliding manner, the two rotation fixing rods 1012 on the same side are jointly and rotatably provided with a second protection plate 1002, five clamping rods 1003 are fixedly connected on the left and right sides of the second protection plates 1002 at equal intervals, five first clamping plates 1004 for clamping the clamping rods 1003 are rotatably disposed on the left and right sides of the first protection plates 1001 at equal intervals, the first clamping plate 1004 and the first protection plate 1001 are connected together with a first torsion spring 1005, the torsion spring 1005 is sleeved on the first protection plate 1001, the first protection plate 1001 on the left side and the right side is connected with a connecting rod 1008 in a sliding way, four pull plates 1007 are fixedly connected on the connecting rod 1008 at equal intervals, the four pull plates 1007 are respectively distributed on the two sides of the first protection plate 1001 on the front side and the rear side of the first protection plate 1001 on the left side and the right side, five first connecting plates 1006 are arranged on the pull plates 1007 at equal intervals, the five first connecting plates 1006 are respectively clamped with two adjacent first clamping plates 1004, the first connecting plates 1006 can be pulled by pulling downwards to rotate the first clamping plates 1004 to loosen the corresponding clamping rods 1003, five second connecting plates 1014 are arranged on the two pull plates 1007 on the rear side at equal intervals, five No. two connecting plates 1014 respectively with the close cardboard 1004 joint No. one, be located the right rear side the arm-tie 1007 lower extreme is through welded mode rigid coupling there is the pull rod 1009, the pull rod 1009 lower part is through welded mode rigid coupling there is No. one wedge 1010, be provided with on the grip 907 with No. two wedge 1013 of No. one wedge 1010 sliding contact, no. two wedge 1013 move forward can extrude No. one wedge 1010 moves down, just support frame 1 right side lower part is opened and is located No. one spout 2 of No. two wedge 1013 below, no. two wedge 1013 lower part slides in No. one spout 2, no. one spout 2 is used for No. two wedge 1013 direction.

Firstly, place the concrete test piece on pressure sensing board 906, then through holding rod 907 and rotating fixed frid 901, three slider 905 inwards move and fix a position the concrete test piece under No. two spouts 902 effect, make the concrete test piece center with the depression bar 4 center alignment of top, simultaneously slider 905 is fixed with the concrete test piece centre gripping, effectively avoided the displacement of concrete test piece in the testing process, when holding rod 907 rotates fixed frid 901, holding rod 907 moves forward through driving No. two wedge 1013, make No. two wedge 1013 push first wedge 1013 move down, no. one wedge 1010 moves down through pull rod 1009 pulling connecting rod 1008, the connecting rod 1008 then pulls four pulling plate 1007 move down, the pulling plate passes through No. one connecting plate 1006 and No. two connecting plate 1014 and pulls No. one cardboard 1004 to rotate down, no. one torsion spring 1005 takes place the deformation, no. one cardboard 1004 loosens the clamping rod 1003, no. two 1002 No. three pieces are No. 1002 down move under the action of gravity, when holding rod 907 rotates fixed, it can drive the concrete test piece along No. two frid plate moving along No. two fixed frid 901, no. two wedge 1013 moves forward, detect the concrete test piece along with the left side and No. two side of pedal 1011 and No. two side impact protector 8 can drive the concrete test piece to the left side and prevent that the concrete test piece from splashing, and the concrete test piece is driven by 3 to the left side and the impact protector is moved, and the impact strength of 3 is detected and the concrete test piece is 3 is prevented.

Example 2

Based on embodiment 1, please refer to fig. 10, 11, 12, 13 and 14, further comprising a cleaning mechanism 11 disposed on the pressure sensing plate 906, wherein the cleaning mechanism 11 is used for cleaning the pressure sensing plate 906, the cleaning mechanism 11 comprises two fixed slide rails 1101, the two fixed slide rails 1101 are symmetrically and fixedly connected to the top of the pressure sensing plate 906, two fixed slide rails 1101 are slidably provided with a row brush 1102 for cleaning the pressure sensing plate 906, two fixed slide rails 1101 are rotatably provided with a second clamping plate 1105 for clamping the row brush 1102, the second clamping plate 1105 and the fixed slide rails 1101 are jointly connected with a second torsion spring 1106, the second torsion spring 1106 is sleeved on the second clamping plate 1105, the second clamping plate is rotatably connected with a connecting rotating plate 1104, the two connecting rotating plates 1103 are jointly and rotatably connected with a third clamping plate 1103, the third clamping plate 1103 is fixedly connected with a first wedge block 1010, the second clamping plate 1107 can be connected with the second clamping plate 1107 through the third clamping plate 1101 in a sliding manner, the second clamping plate 1107 is rotatably connected with the second clamping plate 1107, the second clamping plate 1107 is rotatably connected with the second clamping plate 1109, the second clamping plate is fixedly connected with the second clamping plate 1109 through the second clamping plate is rotatably connected with the guide rod 1109, and the second clamping plate is fixedly connected with the second clamping plate 1105 is fixedly connected with the second clamping plate 1109, and the second clamping plate is fixedly connected with the second clamping plate 1109.

Referring to fig. 15, the concrete test device further includes a material returning mechanism 12 disposed on the support frame 1, the material returning mechanism 12 is configured to push out a concrete test piece on the pressure sensing plate 906, the material returning mechanism 12 includes a fixing plate 1201, the fixing plate 1201 is disposed at a lower right side of the support frame 1, a push rod 1202 is slidably disposed in a middle portion of the fixing plate 1201, the push rod 1202 is configured to push the concrete test piece, an elastic member 1203 for resetting the push rod 1202 is sleeved on the push rod 1202, two ends of the elastic member 1203 are respectively connected with the push rod 1202 and the fixing plate 1201, a limiting block 1204 is disposed on a side of the pressure sensing plate 906 opposite to the push rod 1202 in a screw connection manner, and an inclined plane is disposed on the limiting block 1204, where the concrete test piece can move up along the inclined plane when the push rod 1202 pushes the concrete test piece.

Referring to fig. 16 and 17, the concrete mixing machine further includes an aggregate mechanism 13 disposed on the support frame 1, the aggregate mechanism 13 is used for collecting concrete test piece slag, the aggregate mechanism 13 includes an inclined surface blanking box 1301, the inclined surface blanking box 1301 is disposed at the rear side of the second pressing plate 8, the inclined surface blanking box 1301 is used for collecting concrete slag brushed down from the pressure sensing plate 906, two buckles 1305 symmetrically distributed around the left lower portion of the support frame 1 are fixedly connected in a welding manner, the two buckles 1305 are jointly connected with an aggregate box 1302 in a clamping manner through a clamping block 1304, the aggregate box 1302 is used for storing concrete slag led in by the inclined surface blanking box 1301, a holding block 1303 is fixedly connected to the left side of the aggregate box 1302 in a welding manner, a blanking inclined plate 15 located between the second pressing plate 8 and the aggregate box 1302 is fixedly connected to the support frame 1 in a welding manner, and the blanking inclined plate 15 can be used for guiding concrete slag dropped into the space between the second pressing plate 8 and the aggregate box 1302 into the aggregate box 1302.

When the first wedge 1010 moves downwards, the first wedge 1010 drives the third pressing plate 1103 to move downwards, the third pressing plate 1103 pulls the second clamping plate 1105 to rotate downwards through the connecting rotating plate 1104, the second torsion spring 1106 deforms, the second clamping plate 1105 loosens the row brush 1102, then the row brush 1102 moves backwards to be in contact with a concrete sample under the action of the reset elastic force of the tension spring 1109, the concrete sample blocks the row brush 1102, after the compression strength of the concrete sample is detected, the push rod 1202 is pushed leftwards, the elastic piece 1203 is compressed along with the push rod 1202, the concrete sample on the pressure sensing plate 906 is pushed to the limiting block 1204 leftwards, the push rod 1202 is continuously pushed and the concrete sample is jacked up under the action of the inclined surface of the limiting block 1204, so that an operator can take out the concrete sample, meanwhile, the concrete sample does not block the row brush 1102, the backward movement of the row brush 1102 brushes concrete slag on the pressure sensing plate 906 into the inclined surface blanking box 1301, thereby realizing convenient cleaning, the inclined surface blanking box 1301 guides the slag into the aggregate box 1302 to collect, and after the aggregate box 1302 is fully filled, and the aggregate box 1302 is pulled upwards to be cleaned from the aggregate box 1304.

Referring to fig. 15, the portable electronic device further includes a data management mechanism 14 disposed on the support frame 1, the data management mechanism 14 is configured to record detection data, the data management mechanism 14 includes a console 1401, the console 1401 is mounted on the rear side of the support frame 1, a control panel 1402 is disposed on the console 1401, and numerical adjustment rods 1403 symmetrically distributed around the console 1401 are disposed.

Before the concrete test piece detects, the pressure of the compression bar 4 can be adjusted by controlling the numerical adjusting bar 1403, and in the detection process, the pressure sensing plate 906 can receive a pressure signal, and meanwhile, the control panel 1402 detects the compression condition of the concrete test piece and records the compression condition when the concrete test piece breaks so as to determine the maximum bearing pressure of the concrete test piece.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a concrete test piece intensity detection device, characterized by, including support frame (1), install driver (3) on support frame (1), install depression bar (4) on driver (3), depression bar (4) rotate and run through support frame (1) upper portion, depression bar (4) one end rigid coupling has hand wheel (5), depression bar (4) other end is provided with clamp plate (6), the equal rigid coupling of clamp plate (6) both sides have a symmetric distribution be used for restricting clamp plate (6) pivoted gag lever post (7), the rigid coupling has clamp plate (8) No. two on support frame (1), be provided with adjustment mechanism (9) that are used for adjusting concrete test piece position on clamp plate (8).

2. The device for detecting the strength of a concrete sample according to claim 1, wherein the adjusting mechanism (9) comprises a first fixed groove plate (901), the first fixed groove plate (901) is rotatably connected to the second pressing plate (8), a plurality of second sliding grooves (902) are formed in the first fixed groove plate (901), a second fixed groove plate (904) located above the first fixed groove plate (901) is fixed on the top of the second pressing plate (8) through a first fixed rod (903), a plurality of sliding blocks (905) are arranged on the lower portion of the first fixed rod (903) in the second sliding grooves (902) in a sliding mode, a pressure sensing plate (906) is arranged on the lower portion of the sliding blocks (905) in the second sliding grooves (902) in a sliding mode, and a holding rod (907) is fixedly connected to the first fixed groove plate (901).

3. The device for detecting the strength of a concrete sample according to claim 2, further comprising a protection mechanism (10) arranged on the support frame (1) and used for protection, wherein the protection mechanism (10) comprises three first protection plates (1001), the three first protection plates (1001) are respectively arranged on the front side and the left side and the right side of the support frame (1), two symmetrically distributed second groove plates (1011) are fixedly connected on the first protection plates (1001), rotary fixing rods (1012) are arranged in the second groove plates (1011) in a sliding mode, two rotary fixing rods (1012) on the same side are jointly rotatably provided with second protection plates (1002), a plurality of clamping rods (1003) are fixedly connected on two sides of the second protection plates (1002) at equal intervals, a plurality of first clamping plates (1004) used for clamping the clamping rods (1003) are rotatably arranged on two sides of the first protection plates (1001) at equal intervals, a first clamping plate (1004) is jointly connected with a first torsion spring (1005) on the left side and a second clamping plate (1001), a connecting rod (1008) is jointly connected on the front side of the first protection plates (1001) and a connecting rod (1007) on the right side of the second protection plates (1001) at equal intervals, equidistant a plurality of connecting plates (1006) that are provided with on arm-tie (1007), a plurality of connecting plates (1006) respectively with two that are close a cardboard (1004) joint, two that are located the rear side equal spacing is provided with a plurality of No. two connecting plates (1014) on arm-tie (1007), a plurality of No. two connecting plates (1014) respectively with near a cardboard (1004) joint, be located rigid coupling has pull rod (1009) on arm-tie (1007) of right rear side, rigid coupling has a wedge (1010) on pull rod (1009), be provided with on grip (907) with No. two wedge (1013) of wedge (1010) sliding contact.

4. A concrete specimen strength detecting device as claimed in claim 3, wherein the supporting frame (1) is provided with a first chute (2) positioned below the second wedge-shaped block (1013), and the lower part of the second wedge-shaped block (1013) slides in the first chute (2).

5. The device for detecting the strength of a concrete sample according to claim 4, further comprising a cleaning mechanism (11) arranged on the pressure sensing plate (906) and used for cleaning the pressure sensing plate (906), wherein the cleaning mechanism (11) comprises two fixed sliding rails (1101), the two fixed sliding rails (1101) are symmetrically fixedly connected to the pressure sensing plate (906), a row brush (1102) used for cleaning the pressure sensing plate (906) is arranged on the two fixed sliding rails (1101) in a sliding mode, a second clamping plate (1105) used for clamping the row brush (1102) is rotatably arranged on the outer side of the two fixed sliding rails (1101), a second torsion spring (1106) is jointly connected to the second clamping plate (1105) and the fixed sliding rails (1101), a connecting rotating plate (1104) is rotatably connected to the second clamping plate (1104), a third pressing plate (1103) is jointly rotatably connected to the two connecting rotating plates (1103), the third pressing plate (1103) is fixedly connected to the first pressing plate (1010), a guide rod (1107) is fixedly connected to one side of the row brush (1105) and is fixedly connected to the fixed rod (1107), the guide rod (1108) is sleeved with a tension spring (1109) which enables the fixed block (1107) and the row brush (1102) to reset.

6. The concrete specimen strength detection device as recited in claim 5, further comprising a material returning mechanism (12) disposed on the supporting frame (1) and used for pushing out the concrete specimen on the pressure sensing plate (906), wherein the material returning mechanism (12) comprises a fixing plate (1201), the fixing plate (1201) is disposed on the supporting frame (1), a push rod (1202) is slidably disposed on the fixing plate (1201), an elastic member (1203) for resetting the push rod (1202) is disposed on the push rod (1202) in a sleeved mode, and a limiting block (1204) is disposed on one side of the pressure sensing plate (906) opposite to the push rod (1202).

7. The apparatus for detecting the strength of a concrete sample according to claim 6, wherein the stopper (1204) is provided with a slope.

8. The concrete test piece strength detection device according to claim 7, further comprising an aggregate mechanism (13) arranged on the support frame (1) and used for collecting concrete test piece slag, wherein the aggregate mechanism (13) comprises an inclined plane blanking box (1301), the inclined plane blanking box (1301) is placed on the rear side of the second pressing plate (8), two buckles (1305) which are symmetrically distributed are fixedly connected on the support frame (1), the two buckles (1305) are jointly clamped with an aggregate box (1302) through clamping blocks (1304), and a holding block (1303) is fixedly connected on one side of the aggregate box (1302).

9. The concrete test piece strength detection device according to claim 8, further comprising a data management mechanism (14) arranged on the support frame (1) and used for recording detection data, wherein the data management mechanism (14) comprises a control console (1401), the control console (1401) is installed on one side of the support frame (1), a control panel (1402) is arranged on the control console (1401), and symmetrically distributed numerical regulation rods (1403) are arranged on the control console (1401).

10. The concrete sample strength detection device according to claim 9, further comprising a blanking inclined plate (15), wherein the blanking inclined plate (15) positioned between the second pressing plate (8) and the collecting box (1302) is fixedly connected to the supporting frame (1).