Testing device for self-insulation concrete composite building block

Abstract

The utility model discloses a testing device for a self-insulation concrete composite building block, and relates to the technical field of testing. The testing device for the self-heat-preservation concrete composite building block comprises an operation box, the operation box comprises a box body, a closed observation window is formed in the front face of the box body, a through hole is further formed in the front face of the box body, a conveying belt is arranged on the front face of the box body, and the conveying belt is located below the closed observation window. According to the testing device for the self-heat-preservation concrete composite building block, the building block is conveyed to a lifting plate through a conveying belt, the lifting plate is driven to ascend through an electric push rod, then a spring telescopic rod rebounds to drive a limiting plate to ascend to be tightly attached to the bottom of a connecting plate, and then an air pump is started to suck dust generated in a box body into a dust removal box through an air inlet; after being adsorbed by the activated carbon plate, the air is discharged, and the operation is repeated, so that the lifting plate descends to inject air into the box body, and dust removal treatment on the interior of the box body is realized while automatic conveying of a building block test is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to test technical field, concretely is a kind of testing device for self-insulation concrete composite block. BACKGROUND

[0002] Concrete block is usually mixed by cement, slag, sand, lime and other materials. After these raw materials are stirred into shape and autoclaved, solid blocks are formed, which have various purposes in construction, commonly used in load-bearing walls, retaining walls and other structures. Since the quality of concrete blocks directly affects the stability and safety of building structures, strict testing is required after the formation of concrete blocks to identify and solve potential quality problems, thereby ensuring the quality and safety of buildings.

[0003] The patent publication "CN221174120U" discloses a "autoclaved aerated concrete block performance test device" box. The design includes a box, a detection mechanism and a cleaning mechanism inside the box. The detection mechanism includes a first hydraulic machine located at the top center of the box. The output end of the first hydraulic machine is connected to a first hydraulic rod placed vertically downward. The first hydraulic rod is fixedly connected to a first pressure plate below. The first pressure plate is provided with a lifting platform below. The lifting platform is slidingly connected to the box. The detection mechanism also includes two second hydraulic machines. The output ends of the two second hydraulic machines are connected to a second hydraulic rod placed horizontally. The second hydraulic rod is fixedly connected to a second pressure plate. The cleaning mechanism includes a spray head located at the back of the box. The spray head is provided with a crushing wheel below. This design meets the requirements of horizontal, vertical and different position compression resistance testing, further breaks and collects the tested blocks, avoiding waste. However, the design lacks screening after block testing, increasing the crushing time. The design requires manual handling and placement of blocks during testing, reducing work efficiency. In addition, the design uses water mist for dust removal, which is not ideal and can wet the lifting platform, affecting testing.

[0004] Therefore, the utility model provides a testing device for self-insulation concrete composite block to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a testing device for self-insulation concrete composite block, which solves the above problems.

[0006] In order to achieve the above object, the utility model discloses a testing device for self-insulation concrete composite building block, including operation box, the operation box includes the box, the front of box is equipped with the airtight observation window, the front of box is also equipped with the through -hole and is provided with the conveyer belt, the conveyer belt is located below airtight observation window, the left and right inner walls of box are fixedly connected with connecting plate and inclined plate, the connecting plate is located above inclined plate, the centre of connecting plate is equipped with the limiting slot, the top left and right sides of inclined plate are fixedly connected with the baffle, the inside of box is provided with test assembly and cleaning and brushing subassembly, test assembly includes spring telescopic link and electric push rod, spring telescopic link and electric push rod all are fixedly installed on the inner bottom wall of box, and the top of left and right spring telescopic link is all fixedly connected with the limiting plate, and the output of electric push rod penetrates limiting plate and is fixedly connected with the lifting plate, and the lifting plate is connected in the inside of limiting slot, and the limiting plate is connected between connecting plate and the inner bottom wall of box.

[0007] Further, the building block is conveyed to the lifting plate through the conveyer belt, the lifting plate is driven to rise through the electric push rod, and then the spring telescopic link is driven to rise tightly against the bottom of the connecting plate.

[0008] The top of the connecting plate is fixedly connected with the base on both sides, the first hydraulic machine is fixedly installed on the top of the left and right bases, and the second hydraulic machine is fixedly installed on the inner top wall of the box.

[0009] Further, the building block on the lifting plate is tested through the first hydraulic machine and the second hydraulic machine.

[0010] The cleaning and brushing subassembly includes the first fixed block and the baffle, the first fixed block and the baffle are fixedly connected on the front and rear inner walls of the box, the support rod is fixedly installed between the front and rear first fixed blocks, the right connecting rod is slidably connected to the outside of the support rod, the screw rod is rotatably connected between the front and rear first fixed blocks, the left connecting rod is screwed to the outside of the screw rod and slidably connected to the bottom of the baffle, the brush plate is fixedly connected to the bottom of the left and right connecting rods, the brush plate is slidably connected between the left and right bases, the support plate is fixedly connected to the outer wall of the box, the first motor is fixedly installed on the top of the support plate, and the output of the first motor penetrates the outer wall of the box and is fixedly connected to one end of the screw rod.

[0011] Further, the screw rod is rotated by starting the first motor, and then the connecting rod moves under the limitation of the baffle, and the connecting rod drives the brush plate to move and pushes the building block above the lifting plate into the screening cavity.

[0012] Adopting the technical scheme, the inside of the box is further provided with a crushing device, the left and right inner walls of the box are fixedly connected with a partition plate, the partition plate is located between the connecting plate and the inner bottom wall of the box, the crushing device comprises a screening cavity, the screening cavity is located between the partition plate and the inner wall of the box, the connecting plate is provided with a through hole and corresponds to the screening cavity, the inner part of the screening cavity is fixedly installed with a screening plate and a flow guide plate respectively, the screening plate is located above the flow guide plate, the rear outer wall of the box is provided with a first discharge port and a second discharge port respectively, the first discharge port is located above the screening plate, the second discharge port is located above the flow guide plate, the left and right inner walls of the box are fixedly connected with second fixing blocks respectively, the second grinding columns and the first grinding columns are rotatably connected between the left and right second fixing blocks respectively, the first grinding column and the second grinding column are located between the screening plate and the flow guide plate and the first grinding column is located behind the second grinding column.

[0013] Further, the qualified building blocks and unqualified building blocks are distinguished by the screening plate, the unqualified building blocks are crushed and fall on the flow guide plate through the first grinding column and the second grinding column, and are taken out through the first discharge port and the second discharge port respectively.

[0014] Adopting the technical scheme, the left outer wall of the box is fixedly connected with a support frame, the outer wall of the support frame is fixedly installed with a second motor, the output shaft of the second motor penetrates through the outer wall of the support frame and is fixedly connected with a driving gear, the inside of the support frame is rotatably connected with a driven gear, the driving gear and the second grinding column are fixedly connected, the driven gear and the first grinding column are fixedly connected, and the driving gear and the driven gear are meshed with each other.

[0015] Further, the driving gear is started to rotate to drive the driven gear meshed therewith to rotate, and then drive the first grinding column and the second grinding column to rotate inward.

[0016] Adopting the technical scheme, the outer wall of the box is provided with a dust removal device, the dust removal device comprises a dust removal box, the dust removal box is fixedly connected to the outer wall of the box, a gas inlet is correspondingly provided between the dust removal box and the box, the inside of the dust removal box is fixedly installed with an activated carbon plate, the top of the dust removal box is fixedly installed with a gas pump, a gas inlet pipe is fixedly installed between the gas pump and the dust removal box, the gas inlet pipe is located outside the activated carbon plate, and the top of the gas pump is fixedly installed with a gas outlet pipe.

[0017] Further, the dust generated in the box is sucked into the dust removal box through the gas inlet by starting the gas pump, and is discharged after being adsorbed by the activated carbon plate.

[0018] Beneficial effects

[0019] The utility model provides a kind of test device for self-insulation concrete composite block. Compared with prior art has the following beneficial effects:

[0020] 1、The test device for self-insulation concrete composite block, the qualified block is distinguished from the unqualified block by the screening plate, the unqualified block is screened to the first grinding column and the second grinding column, the driving gear is rotated to drive the driven gear engaged with it by starting the second motor, and then the first grinding column and the second grinding column are rotated inward to crush the block, and finally fall on the deflector, the qualified block and the unqualified block are taken out through the first discharge port and the second discharge port respectively, realizing the separation and treatment of the tested block, greatly reducing the crushing time.

[0021] 2、The test device for self-insulation concrete composite block, the block is conveyed to the lifting plate by the conveyor belt, the lifting plate is raised by the electric push rod, and then the spring telescopic rod is rebounded to drive the limiting plate to rise tightly against the bottom of the connecting plate, and then the dust generated in the box is sucked into the dust removal box through the air inlet by starting the air pump, and is discharged after being adsorbed by the activated carbon plate, and repeated operation makes the lifting plate descend to inject air into the box, realizing automatic conveying of the block and dust removal of the box. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor.

[0023] Figure 1 It is the external front structure perspective drawing of the utility model;

[0024] Figure 2 It is the external back structure perspective drawing of the utility model;

[0025] Figure 3 It is the external overall structure side view of the utility model;

[0026] Figure 4 It is the internal structure display drawing of the crushing device of the utility model;

[0027] Figure 5 It is the internal structure display drawing of the test assembly of the utility model.

[0028] In the figure: 1, operation box; 11, box body; 12, closed observation window; 13, connecting plate; 14, limiting groove; 15, inclined plate; 16, stop block; 17, partition; 18, first discharge port; 19, second discharge port; 2, conveying belt; 3, test assembly; 31, spring telescopic rod; 32, electric push rod; 33, limiting plate; 34, lifting plate; 35, base; 36, first hydraulic machine; 37, second hydraulic machine; 4, brush cleaning assembly; 41, first fixed block; 42, support rod; 43, screw rod; 44, baffle; 45, connecting rod; 46, brush plate; 47, support plate; 48, first motor; 5, crushing device; 51, screening cavity; 52, screening plate; 53, second fixed block; 54, first grinding column; 55, second grinding column; 56, guide plate; 57, support frame; 58, driving gear; 59, driven gear; 510, second motor; 6, dust removal device; 61, dust removal box; 62, air inlet; 63, activated carbon plate; 64, air pump; 65, air inlet pipe; 66, air outlet pipe. DETAILED DESCRIPTION

[0029] It should be noted that in the description of the embodiments of the present application, the terms "front, back, left, right, up, down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The present application will be further described in detail below with the aid of the drawings and examples.

[0031] Reference Figures 1 to 5The embodiment of the application provides a testing device for self-insulation concrete composite building blocks, which comprises an operation box 1, the operation box 1 comprises a box body 11, airtight observation windows 12 are formed in the front of the box body 11, through holes are formed in the front of the box body 11 and conveying belts 2 are arranged, the conveying belts 2 are located below the airtight observation windows 12, connecting plates 13 and inclined plates 15 are fixedly connected between the left and right inner walls of the box body 11, the connecting plates 13 are located above the inclined plates 15, limit grooves 14 are formed in the centers of the connecting plates 13, stop blocks 16 are fixedly connected to the top left and right sides of the inclined plates 15, testing assemblies 3 and cleaning assemblies 4 are arranged in the box body 11, the testing assemblies 3 comprise spring telescopic rods 31 and electric push rods 32, the spring telescopic rods 31 and the electric push rods 32 are fixedly installed on the inner bottom wall of the box body 11, limit plates 33 are fixedly connected to the top ends of the left and right spring telescopic rods 31, the output end of the electric push rod 32 penetrates through the limit plate 33 and is fixedly connected with a lifting plate 34, the lifting plate 34 is slidingly connected in the limit groove 14, the limit plate 33 is slidingly connected between the connecting plate 13 and the inner bottom wall of the box body 11, bases 35 are fixedly connected to the top of the connecting plate 13, first hydraulic machines 36 are fixedly installed on the top of the left and right bases 35, and a second hydraulic machine 37 is fixedly installed on the inner top wall of the box body 11.

[0032] In the embodiment, when it is needed to test the building blocks, the building blocks are placed on the conveying belts 2 and conveyed into the box body 11, at this time, the output end of the electric push rod 32 is located at the bottom end, the spring telescopic rod 31 drives the limit plate 33 to be compressed, the building blocks fall onto the lifting plate 34 after sliding through the inclined plate 15 and being limited by the stop blocks 16, then the electric push rod 32 is started, so that the lifting plate 34 drives the building blocks to move upwards, at this time, the spring telescopic rod 31 drives the limit plate 33 to rise together, until the lifting plate 34 penetrates through the limit groove 14 and reaches a suitable height, because the limit plate 33 is larger than the limit groove 14, at this time, the limit plate 33 is tightly attached below the connecting plate 13 under the pushing of the spring telescopic rod 31, then the first hydraulic machine 36 and the second hydraulic machine 37 are started, the building blocks on the top of the lifting plate 34 are tested, and the conveying belt 2 is controlled in speed through the airtight observation windows 12.

[0033] Reference Figures 1 to 5In one aspect of the embodiment, the cleaning brush assembly 4 comprises first fixed blocks 41 and baffles 44, both of which are fixedly connected to the front and rear inner walls of the box body 11. A support rod 42 is fixedly installed between the front and rear first fixed blocks 41. A right connecting rod 45 is slidingly connected to the outer side of the support rod 42. A screw rod 43 is rotatably connected between the front and rear first fixed blocks 41. The left connecting rod 45 is screwed to the outer side of the screw rod 43 and slidingly connected to the bottom of the baffle 44. Brush plates 46 are fixedly connected to the bottom of the left and right connecting rods 45 and slidingly connected between the left and right bases 35. A support plate 47 is fixedly connected to the outer wall of the box body 11. A first motor 48 is fixedly installed at the top of the support plate 47. The output end of the first motor 48 penetrates through the outer wall of the box body 11 and is fixedly connected to one end of the screw rod 43. A crushing device 5 is further arranged in the box body 11. A partition plate 17 is fixedly connected between the left and right inner walls of the box body 11 and located between the connecting plate 13 and the inner bottom wall of the box body 11. The crushing device 5 comprises a screening cavity 51 located between the partition plate 17 and the inner wall of the box body 11. The connecting plate 13 is provided with a through hole corresponding to the screening cavity 51. A screening plate 52 and a flow guide plate 56 are fixedly installed in the screening cavity 51. The screening plate 52 is located above the flow guide plate 56. A first discharge port 18 and a second discharge port 19 are respectively formed in the rear outer wall of the box body 11. The first discharge port 18 is located above the screening plate 52. The second discharge port 19 is located above the flow guide plate 56. Second fixed blocks 53 are fixedly connected to the left and right inner walls of the box body 11. A second grinding column 55 and a first grinding column 54 are rotatably connected between the left and right second fixed blocks 53 in front and back correspondence. The first grinding column 54 and the second grinding column 55 are located between the screening plate 52 and the flow guide plate 56, and the first grinding column 54 is located behind the second grinding column 55. A support frame 57 is fixedly connected to the left outer wall of the box body 11. A second motor 510 is fixedly installed on the outer wall of the support frame 57. The output shaft of the second motor 510 penetrates through the outer wall of the support frame 57 and is fixedly connected to a driving gear 58. A driven gear 59 is rotatably connected in the support frame 57. The driving gear 58 is fixedly connected between the second grinding column 55. The driven gear 59 is fixedly connected between the first grinding column 54. The driving gear 58 and the driven gear 59 are in meshing relationship. A dust removal device 6 is arranged on the outer wall of the box body 11. The dust removal device 6 comprises a dust removal box 61 fixedly connected to the outer wall of the box body 11. A gas inlet 62 is formed in correspondence between the dust removal box 61 and the box body 11. An activated carbon plate 63 is fixedly installed in the dust removal box 61. A gas pump 64 is fixedly installed at the top of the dust removal box 61. An air inlet pipe 65 is fixedly installed between the gas pump 64 and the dust removal box 61. The air inlet pipe 65 is located outside the activated carbon plate 63. An air outlet pipe 66 is fixedly installed at the top of the gas pump 64.

[0034] In this embodiment, after the test of the block, the qualified block or unqualified block on the lifting plate 34 needs to be taken away, at this time the first hydraulic machine 36 and the second hydraulic machine 37 return to the starting position, the lifting plate 34 is clamped with the connecting plate 13, the cleaning assembly 4 is started, the first motor 48 drives the screw rod 43 to rotate, and then the connecting rod 45 moves stably forward under the support of the support rod 42 and the limiting action of the baffle 44, since the connecting rod 45 is fixedly connected with the brush plate 46, the brush plate 46 moves forward together to push the block on the top of the lifting plate 34 into the screening cavity 51, the detected block first falls on the screening plate 52, the qualified block is left on the screening plate 52 after screening, and the unqualified broken block falls on the first grinding column 54 and the second grinding column 55 through the screening plate 52, then the second motor 510 is started to drive the driving gear 58 to rotate to drive the driven gear 59 engaged with the driving gear 58 to rotate, and then drive the second grinding column 55 and the first grinding column 54 to rotate inward respectively to crush the block falling thereon, the crushed powder falls on the flow guide plate 56, and the qualified block and the unqualified block powder are taken out through the first discharge port 18 and the second discharge port 19 respectively formed in the box body 11; in the whole process, dust inside the device needs to be treated, the air pump 64 is started to make the dust generated inside the box body 11 enter the dust removal box 61 through the air inlet 62, then is absorbed by the activated carbon plate 63 and is conveyed to the air pump 64 through the air inlet pipe 65, and is discharged through the air outlet pipe 66.

[0035] Working principle: when the block needs to be tested, first, the block is placed on the conveyor belt 2 and transported to the inside of the box 11, at this time the output end of the electric push rod 32 is at the bottom, the spring telescopic rod 31 drives the limiting plate 33 to be compressed, the block enters the box 11 and slides through the inclined plate 15 and the limiting block 16 to fall on the lifting plate 34, then start the electric push rod 32, make the lifting plate 34 drive the block to move upwards, at this time the spring telescopic rod 31 drives the limiting plate 33 to rise together, until the lifting plate 34 passes through the limiting slot 14 to reach the appropriate height, because the limiting plate 33 is larger than the limiting slot 14, at this time the limiting plate 33 is tightly attached to the lower side of the connecting plate 13 under the push of the spring telescopic rod 31, then start the first hydraulic machine 36 and the second hydraulic machine 37, test the block on the top of the lifting plate 34, and observe through the sealed observation window 12 to control the running speed of the conveyor belt 2; after the block is tested, the qualified block or unqualified block on the lifting plate 34 needs to be taken away, at this time the first hydraulic machine 36 and the second hydraulic machine 37 return to the starting position, the lifting plate 34 is clamped with the connecting plate 13, start the cleaning assembly 4, the first motor 48 drives the screw rod 43 to rotate, and then the connecting rod 45 moves stably forward under the support of the support rod 42 and the limiting action of the baffle 44, because the brush plate 46 is fixedly connected at the bottom of the connecting rod 45, the brush plate 46 moves forward together to push the block on the top of the lifting plate 34 into the screening cavity 51, the detected block first falls on the screening plate 52, the qualified block remains on the screening plate 52 after screening, and the unqualified broken block falls on the first grinding column 54 and the second grinding column 55 through the screening plate 52, then start the second motor 510, make the driving gear 58 rotate to drive the driven gear 59 to rotate, and then drive the second grinding column 55 and the first grinding column 54 to rotate inward respectively, crush the block falling here, and the crushed powder falls on the deflector 56, and the qualified block and the unqualified block powder are taken out through the first discharge port 18 and the second discharge port 19 respectively opened on the box 11; in the whole process, dust inside the device needs to be treated, start the air pump 64 to make the dust generated inside the box 11 enter the dust removal box 61 through the air inlet 62, then be conveyed to the air pump 64 through the activated carbon plate 63 after absorption, and be discharged through the air outlet pipe 66.

[0036] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0037] While embodiments of the present application have been shown and described, it is to be understood that the embodiments described are merely divergences and modifications and not limitations of the scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A testing device for self-insulating concrete composite blocks, comprising an operating box (1), characterized in that: The operation box (1) includes a box body (11), the front of the box body (11) is provided with a sealed observation window (12), the front of the box body (11) is also provided with a through hole and is provided with a conveying belt (2), the conveying belt (2) is located below the sealed observation window (12), the left and right inner walls of the box body (11) are fixedly connected with a connecting plate (13) and an inclined plate (15), the connecting plate (13) is located above the inclined plate (15), the center of the connecting plate (13) is provided with a limiting groove (14), the top left and right sides of the inclined plate (15) are fixedly connected with a stop block (16), the inside of the box body (11) is provided with a test assembly (3) and a cleaning assembly (4), the test assembly (3) includes a spring telescopic rod (31) and an electric push rod (32), the spring telescopic rod (31) and the electric push rod (32) are fixedly installed on the inner bottom wall of the box body (11), the top of the left and right spring telescopic rods (31) is fixedly connected with a limiting plate (33), the output end of the electric push rod (32) penetrates through the limiting plate (33) and is fixedly connected with a lifting plate (34), the lifting plate (34) is slidingly connected in the limiting groove (14), and the limiting plate (33) is slidingly connected between the connecting plate (13) and the inner bottom wall of the box body (11).

2. The testing device for self-insulating concrete composite building blocks according to claim 1, characterized in that: The top of the connecting plate (13) is fixedly connected with a base (35), and the top of the left and right bases (35) is fixedly installed with a first hydraulic machine (36), and the inner top wall of the box body (11) is fixedly installed with a second hydraulic machine (37).

3. The testing device for self-insulating concrete composite building blocks according to claim 1, characterized in that: The cleaning assembly (4) includes a first fixed block (41) and a baffle (44), the first fixed block (41) and the baffle (44) are fixedly connected to the front and rear inner walls of the box body (11), a supporting rod (42) is fixedly installed between the front and rear first fixed blocks (41), a right connecting rod (45) is slidingly connected to the outer side of the supporting rod (42), a screw rod (43) is rotatably connected between the front and rear first fixed blocks (41), the left connecting rod (45) is screwed to the outer side of the screw rod (43) and is slidingly connected to the bottom of the baffle (44), the bottoms of the left and right connecting rods (45) are fixedly connected with brush plates (46), the brush plates (46) are slidingly connected between the left and right bases (35), a supporting plate (47) is fixedly connected to the outer wall of the box body (11), a first motor (48) is fixedly installed on the top of the supporting plate (47), and the output end of the first motor (48) penetrates through the outer wall of the box body (11) and is fixedly connected to one end of the screw rod (43).

4. The testing device for self-insulating concrete composite building blocks according to claim 1, characterized in that: The inside of the box (11) is also provided with a crushing device (5), the left and right inner walls of the box (11) are fixedly connected with a partition plate (17), the partition plate (17) is located between the connecting plate (13) and the inner bottom wall of the box (11), the crushing device (5) comprises a screening cavity (51), the screening cavity (51) is located between the partition plate (17) and the inner wall of the box (11), the connecting plate (13) is provided with a through hole and corresponds to the screening cavity (51), the inside of the screening cavity (51) is fixedly installed with a screening plate (52) and a guide plate (56) respectively, the screening plate (52) is located above the guide plate (56), the rear outer wall of the box (11) is provided with a first discharge port (18) and a second discharge port (19) respectively, the first discharge port (18) is located above the screening plate (52), the second discharge port (19) is located above the guide plate (56), the left and right inner walls of the box (11) are fixedly connected with a second fixed block (53), the left and right second fixed blocks (53) are rotatably connected with a second grinding column (55) and a first grinding column (54) respectively, the first grinding column (54) and the second grinding column (55) are located between the screening plate (52) and the guide plate (56), and the first grinding column (54) is located behind the second grinding column (55).

5. The testing device for self-insulating concrete composite building blocks according to claim 1, characterized in that: The left outer wall of the box (11) is fixedly connected with a support frame (57), the outer wall of the support frame (57) is fixedly installed with a second motor (510), the output shaft of the second motor (510) penetrates the outer wall of the support frame (57) and is fixedly connected with a driving gear (58), the inside of the support frame (57) is rotatably connected with a driven gear (59), the driving gear (58) and the second grinding column (55) are fixedly connected, the driven gear (59) and the first grinding column (54) are fixedly connected, and the driving gear (58) and the driven gear (59) are meshed with each other.

6. The testing device for self-insulating concrete composite building blocks according to claim 1, characterized in that: The outer wall of the box (11) is provided with a dust removal device (6), the dust removal device (6) comprises a dust removal box (61), the dust removal box (61) is fixedly connected to the outer wall of the box (11), a gas inlet (62) is correspondingly provided between the dust removal box (61) and the box (11), the inside of the dust removal box (61) is fixedly installed with an activated carbon plate (63), the top of the dust removal box (61) is fixedly installed with an air pump (64), the air pump (64) and the dust removal box (61) are fixedly installed with an air inlet pipe (65), the air inlet pipe (65) is located outside the activated carbon plate (63), and the top of the air pump (64) is fixedly installed with an air outlet pipe (66).

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