Building material compressive strength detection device

Abstract

The utility model belongs to the field of building material detection, and discloses a building material compressive strength detection device which comprises a detection box, a hydraulic cylinder is installed at the top of the detection box, the movable end of the hydraulic cylinder extends into the detection box, a pressing plate is installed at the bottom of the hydraulic cylinder, and a collection box is arranged in the detection box; the placement plate is mounted in the detection box and is positioned above the collection box; the sweeping mechanism comprises a reciprocating guide rail and a sweeping push plate, the reciprocating guide rail is installed in the detection box, the sweeping push plate is installed at the movable end of the reciprocating guide rail, the reciprocating guide rail is located above the containing plate, and a brush is arranged at the bottom of the sweeping push plate. The concrete block is fully placed on the placing plate and then is pressed down for detection, so that the influence of shear force on compressive strength detection is eliminated, and the detection precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building material detection, and in particular relates to a building material compressive strength detection device. Background Art

[0002] Concrete is one of the main materials for building, and it mainly plays the roles of load-bearing, fireproofing, heat preservation and sound insulation. The quality of its performance largely determines the strength and stability of the building. Therefore, concrete needs to be tested for relevant performance when used, among which the compressive strength test is particularly important.

[0003] The Chinese patent with the publication number CN220154094U discloses a concrete block compressive strength testing device, including a shell; an inclined plate is connected inside the shell; the inclined plate divides the inner cavity of the shell into an upper cavity and a lower cavity; a partition is connected inside the upper cavity; the partition divides the upper cavity into a lower detection cavity and an upper installation cavity; the shell has transverse slide grooves on both sides of the lower detection cavity; the transverse slide grooves are connected to a detection platform in a transverse sliding manner; the side of the detection platform is connected to a transverse slide; the transverse slide passes through the shell and is connected to an outer push rod; a transverse electric telescopic push rod is connected between the outer push rod and the shell; the shell is connected to a cleaning device above the detection platform; a discharge port is opened at the rear side of the shell; and a collection box is placed below the rear side of the shell. When the device is used, most of the concrete block fragments will fall from between the two detection platforms onto the inclined plate and be collected by the collection box, and a small part of the concrete block fragments will be cleaned by the cleaning device.

[0004] However, in actual use, after the concrete blocks are placed on the testing tables on both sides, the bottom of the concrete blocks is hollow and supported at both ends. The testing force is applied to the center of the top of the concrete blocks. The positions of the supporting force and the testing force are staggered, thereby forming a shear force. The existence of this shear force will aggravate the fragmentation of the concrete blocks (because the shear strength of concrete is generally lower than the compressive strength), thereby causing the compressive strength of the concrete blocks detected by the device to be inconsistent with the actual compressive strength, that is, the test results are inaccurate. Utility Model Content

[0005] The utility model aims to provide a device for testing the compressive strength of building materials, so as to solve the problem of inaccurate testing results of the existing testing devices mentioned above.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building material compressive strength testing device, comprising

[0007] A detection box, a hydraulic cylinder is installed on the top of the detection box, the movable end of the hydraulic cylinder extends into the detection box, and a pressure plate is installed at the bottom, and a collection box is arranged in the detection box;

[0008] A placement plate is installed in the detection box and is located above the collection box;

[0009] The cleaning mechanism comprises a reciprocating guide rail and a cleaning push plate. The reciprocating guide rail is installed in the detection box. The cleaning push plate is installed on the movable end of the reciprocating guide rail. The reciprocating guide rail is located above the placement plate. A brush is provided at the bottom of the cleaning push plate.

[0010] The principle and effect of this technical solution:

[0011] 1. The driving end of the hydraulic cylinder drives the pressing plate to press down, and then the pressing plate can press down the concrete blocks placed on the placing plate, so as to obtain the compressive strength of the concrete blocks. The placing plate fully supports the concrete blocks, thereby avoiding the influence of shear force on the compressive strength test and improving the test accuracy. At the same time, the cleaning mechanism can clean the debris on the placing plate, saving the time of manual cleaning. The setting of the collection box allows the debris to be collected and managed in a unified manner.

[0012] 2. The cleaning push plate is driven to move by a reciprocating guide rail, so that the cleaning mechanism can clean reciprocatingly, and the cleaning push rod can push large concrete block debris, and the bristles at the bottom of the cleaning push rod can clean small debris, thereby making the placement plate cleaner.

[0013] The utility model is further configured as follows: it also includes a clamping mechanism, the clamping mechanism includes two clamping units symmetrical about the detection box, the clamping unit includes a clamping plate, a push rod, a connecting rod, a driving spring, a driving plate and a stopper, the push rod is slidably inserted into the side wall of the detection box, the two ends of the push rod are respectively fixed to the clamping plate and the driving plate, the connecting rod is slidably inserted into the driving plate, and one end of the connecting rod is fixed to the outer wall of the detection box, the other end of the connecting rod is fixed to the stopper, and the driving spring is sleeved on the connecting rod and is located on the side of the driving plate away from the push rod.

[0014] The principle and effect of the technical solution: through the setting of the clamping unit, the detection device can not only detect square concrete blocks, but also perform limit detection on concrete blocks of shapes such as round, thereby improving the application scope of the device, and the limit of the driving spring by the block makes the rebound force of the driving spring drive the driving plate to spontaneously approach the center of the detection box, and through the conduction of the push rod, the clamping plates on both sides can spontaneously move toward the center, so that the concrete blocks can be limited and clamped, thereby making the position of the concrete blocks more stable during downward pressure detection.

[0015] The utility model is further configured as follows: a clearance groove is opened on the placement plate, the clamping plate corresponds to the clearance groove, hydraulic rods are installed around the bottom of the placement plate, the hydraulic rods are fixed to the bottom of the inner side of the detection box, and the placement plate is slidably matched with the inner side of the detection box.

[0016] The principle and effect of the technical solution: by setting the yield groove and the hydraulic rod, the height of the placing plate can be adjusted relative to the clamping plate, and by adjusting the height of the upper surface of the placing plate relative to the clamping plate on the vertical plane, when concrete blocks of different thicknesses and sizes are placed on the placing plate, the height of the upper surface of the concrete blocks can be higher than the height of the clamping plate, so that the lower pressing plate will not be affected by the clamping plate when pressed downward, so that the device can be suitable for compressive capacity testing of concrete blocks of various sizes and thicknesses.

[0017] The utility model is further configured as follows: a dust cover is fixed on the side wall of the clamping plate, the cross section of the dust cover is an inverted U shape, and the push rod is located on the inner side of the dust cover, a sliding groove is opened on the side wall of the detection box, the dust cover is adapted to the sliding groove, and the dust cover slides and fits in the give way groove.

[0018] The principle and effect of this technical solution: by setting the dust cover, the blocks produced by the concrete blocks in the compression test can not enter the gap between the clamping plate and the side wall of the test box, so that the debris of the concrete blocks is not easily stuck in the give way groove, thereby reducing the impact of the debris on the movement of the clamping plate.

[0019] The utility model is further configured as follows: it also includes a linkage component, the linkage component includes a linkage rod, a fixed block, two synchronization rods and two synchronization plates, the fixed block is fixed to the bottom of the placement plate, the linkage rod is slidably inserted on the fixed block, the two synchronization rods are hinged to one end of the linkage rod close to the give way groove, and the two synchronization rods are symmetrical about the fixed block, the two synchronization plates are respectively hinged to the ends of the two synchronization rods, and the synchronization plate is slidably connected to the bottom of the placement plate, and the side of the synchronization plate away from the synchronization rod is abutted against the clamping plate.

[0020] The principle and effect of this technical solution are as follows: through the hinge connection between the synchronization rod, the linkage rod and the synchronization plate, and the synchronization plate is limited by the placement plate, the synchronization rod is limited by the fixed block, and then a crank slider mechanism is formed between the linkage rod, the synchronization rod and the synchronization plate. By controlling the linkage rod, the synchronization plates on both sides can move synchronously, so that the synchronization plate drives the two clamping plates away from the center of the detection box, thereby making it more convenient to place the concrete blocks.

[0021] The utility model is further configured as follows: a guide rod is fixed at the bottom of the placement plate, and the synchronous plate is slidably sleeved on the guide rod.

[0022] The principle and effect of this technical solution are as follows: the synchronous plate is limited and guided by the guide rod, so that the synchronous plate can be stably driven by the synchronous rod.

[0023] The utility model is further configured as follows: two inner walls of the collection box along the length direction of the reciprocating guide rail are provided with inclined material guide slopes, and the included angle between the material guide slopes and the inner bottom of the collection box is an obtuse angle.

[0024] The principle and effect of the technical solution: the setting of the guide slope enables the concrete block debris entering the collection box to spontaneously nest and move closer to the center of the collection box, thereby avoiding the unilateral accumulation of the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the main structural diagram of the utility model;

[0026] Figure 2 It is a side view of the utility model;

[0027] Figure 3 for Figure 2 Structure diagram of

[0028] Figure 4 It is a structural diagram of the placement of the plate in the utility model;

[0029] Figure 5 It is a structural diagram of the clamping unit in the utility model;

[0030] Figure 6 for Figure 5 The structural diagram without dust cover;

[0031] Figure 7 for Figure 1 Bottom view of the board placed in the middle. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0033] The figure marks in the drawings of the specification include: 101, detection box; 102, hydraulic cylinder; 103, pressure plate; 104, collection box; 105, slide; 106, material guide slope; 201, placement plate; 202, give way groove; 203, hydraulic rod; 301, reciprocating guide rail; 302, cleaning push plate; 401, clamping plate; 402, push rod; 403, connecting rod; 404, driving spring; 405, driving plate; 406, block; 407, dust cover; 501, linkage rod; 502, fixed block; 503, synchronization rod; 504, synchronization plate; 505, guide rod.

[0034] Example:

[0035] As attached Figure 1-7As shown, the utility model discloses a device for detecting the compressive strength of building materials, including a detection box 101, a placement plate 201, a cleaning mechanism, a clamping mechanism and a linkage assembly, wherein a hydraulic cylinder 102 is installed on the top of the detection box 101, the movable end of the hydraulic cylinder 102 extends into the detection box 101, and a pressure plate 103 is installed on the bottom, and the pressure plate 103 has a pressure sensor for detecting the compressive strength of concrete blocks. A collecting box 104 is arranged in the detection box 101, and the inner walls on both the front and rear sides of the collecting box 104 are provided with inclined material guide slopes 106, and the angle between the material guide slope 106 and the inner bottom of the collecting box 104 is an obtuse angle, and the left and right side walls of the detection box 101 are provided with slide grooves 105.

[0036] The placement plate 201 is located above the collection box 104. Hydraulic rods 203 are installed around the bottom of the placement plate 201. The hydraulic rods 203 are fixed to the bottom of the inner side of the detection box 101. The placement plate 201 slides with the inner side of the detection box 101. The placement plate 201 is provided with left-right symmetrical make-way grooves 202 at both ends.

[0037] The cleaning mechanism includes a reciprocating guide rail 301 and a cleaning push plate 302. The two reciprocating guide rails 301 are respectively installed on the left and right side walls of the detection box 101. The cleaning push plate 302 is installed between the movable ends of the two reciprocating guide rails 301. The reciprocating guide rail 301 is located above the placement plate 201. The bottom of the cleaning push plate 302 has a brush.

[0038] The clamping mechanism includes two clamping units symmetrical about the detection box 101, the clamping unit includes a clamping plate 401, a push rod 402, a connecting rod 403, a driving spring 404, a driving plate 405 and a stopper 406, the push rod 402 is slidably inserted into the side wall of the detection box 101, and the two ends of the push rod 402 are respectively fixed to the clamping plate 401 and the driving plate 405, the connecting rod 403 is slidably inserted into the driving plate 405, and one end of the connecting rod 403 is fixed to the outer wall of the detection box 101, and the connecting rod 403 is connected to the outer wall of the detection box 101. The other end of the rod 403 is fixed to the stopper 406, the driving spring 404 is sleeved on the connecting rod 403 and is located on the side of the driving plate 405 away from the push rod 402, a dust cover 407 is also fixed on the side wall of the clamping plate 401, the cross section of the dust cover 407 is an inverted U shape, and the push rod 402 is located on the inner side of the dust cover 407, a slide groove 105 is opened on the side wall of the detection box 101, the dust cover 407 is adapted to the slide groove 105, and the dust cover 407 is slidably fitted in the give way groove 202.

[0039] The linkage assembly includes a linkage rod 501, a fixed block 502, two synchronization rods 503 and two synchronization plates 504. The fixed block 502 is fixed to the bottom of the placement plate 201. The linkage rod 501 is slidably inserted on the fixed block 502. The two synchronization rods 503 are hinged to one end of the linkage rod 501 close to the give way groove 202, and the two synchronization rods 503 are symmetrical about the fixed block 502. The two synchronization plates 504 are respectively hinged to the ends of the two synchronization rods 503, and the synchronization plate 504 is slidably connected to the bottom of the placement plate 201. The side of the synchronization plate 504 away from the synchronization rod 503 abuts against the clamping plate 401. A guide rod 505 is fixed to the bottom of the placement plate 201, and the synchronization plate 504 is slidably sleeved on the guide rod 505.

[0040] The specific implementation process is as follows:

[0041] When using the device, first open the door of the detection box 101, then place the concrete block to be detected on the front end of the placement plate 201, and push the linkage rod 501 so that the linkage rod 501 drives the synchronization rod 503 to approach the yield groove 202, and then the other end of the synchronization rod 503 drives the synchronization plate 504 away from the center of the detection box 101, and then the two clamping plates 401 are driven away from the center of the detection box 101 through the two synchronization plates 504. Then, the inspector pushes the concrete block to the center of the placement plate 201 with one hand, and after removing the thrust on the linkage rod 501, the clamping plate 401 spontaneously drives the clamping plate 401 to clamp the concrete block under the action of the rebound force of the driving spring 404, and then the liquid can be adjusted according to the position of the top surface of the concrete block relative to the top surface of the clamping plate 401 The extension and retraction of the pressure rod 203 can ensure that the upper surface of the concrete block is higher than the upper surface of the clamping plate 401. At this time, the hydraulic cylinder 102 can be driven to drive the pressure plate 103 to press down, that is, to test the compressive strength of the concrete block. Then, after the test is completed, the hydraulic rod 203 is continued to be driven to extend until the upper surface of the clamping plate 401 is flush with the upper surface of the placement plate 201. At this time, the brush at the lower end of the cleaning push plate 302 abuts against the surface of the placement plate 201, and the cleaning push plate 302 starts to move horizontally through the drive of the reciprocating guide rail 301, so that the cleaning push plate 302 can push larger debris off the placement plate 201 and into the collection box 104, and the brush sweeps smaller debris off the placement plate 201 and into the collection box 104, thereby completing the cleaning work of the placement plate 201, and then facilitating the next test.

[0042] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A building material compressive strength testing device, characterized in that: include A detection box, wherein a hydraulic cylinder is installed on the top of the detection box, the movable end of the hydraulic cylinder extends into the detection box, and a pressure plate is installed on the bottom, and a collection box is arranged in the detection box; A placement plate is installed in the detection box and is located above the collection box; The cleaning mechanism comprises a reciprocating guide rail and a cleaning push plate, wherein the reciprocating guide rail is installed in the detection box, the cleaning push plate is installed on the movable end of the reciprocating guide rail, the reciprocating guide rail is located above the placement plate, and a brush is provided at the bottom of the cleaning push plate.

2. A building material compressive strength testing device as claimed in claim 1, characterized in that: It also includes a clamping mechanism, which includes two clamping units symmetrical about the detection box, the clamping unit includes a clamping plate, a push rod, a connecting rod, a driving spring, a driving plate and a stopper, the push rod is slidably inserted into the side wall of the detection box, the two ends of the push rod are respectively fixed to the clamping plate and the driving plate, the connecting rod is slidably inserted into the driving plate, and one end of the connecting rod is fixed to the outer wall of the detection box, and the other end of the connecting rod is fixed to the stopper, and the driving spring is sleeved on the connecting rod and is located on the side of the driving plate away from the push rod.

3. A building material compressive strength testing device as claimed in claim 2, characterized in that: The placement plate is provided with a clearance groove, the clamping plate corresponds to the clearance groove, hydraulic rods are installed around the bottom of the placement plate, the hydraulic rods are fixed to the bottom of the inner side of the detection box, and the placement plate is slidably matched with the inner side of the detection box.

4. A building material compressive strength testing device as claimed in claim 3, characterized in that: A dust cover is also fixed on the side wall of the clamping plate, the cross section of the dust cover is an inverted U shape, and the push rod is located on the inner side of the dust cover. A sliding groove is opened on the side wall of the detection box, the dust cover is adapted to the sliding groove, and the dust cover slides and fits in the clearance groove.

5. A building material compressive strength testing device as claimed in claim 3, characterized in that: The invention also includes a linkage component, which includes a linkage rod, a fixed block, two synchronization rods and two synchronization plates. The fixed block is fixed to the bottom of the placement plate, and the linkage rod is slidably inserted on the fixed block. The two synchronization rods are hinged to one end of the linkage rod close to the give way groove, and the two synchronization rods are symmetrical about the fixed block. The two synchronization plates are respectively hinged to the ends of the two synchronization rods, and the synchronization plate is slidably connected to the bottom of the placement plate, and the side of the synchronization plate away from the synchronization rod abuts against the clamping plate.

6. A building material compressive strength testing device as claimed in claim 5, characterized in that: A guide rod is fixed at the bottom of the placing plate, and the synchronous plate is slidably sleeved on the guide rod.

7. A building material compressive strength testing device as claimed in claim 1, characterized in that: Both inner walls of the collecting box along the length direction of the reciprocating guide rail have inclined material guide slopes, and the included angle between the material guide slopes and the inner bottom of the collecting box is an obtuse angle.

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