Coarse aggregate crushing value detection equipment

Abstract

The utility model discloses coarse aggregate crushing value detection equipment which comprises a machine body, a vibration plate is arranged at the top end of the machine body, the bottom surface of the vibration plate is connected with a vibration motor, and the vibration motor is electrically connected with the machine body; a tray is arranged on the upper surface of the vibrating plate, and a screening disc is arranged on the upper surface of the tray; a protective cover is arranged at the top of the machine body and arranged on the outer side of the vibration plate in a sleeving mode, an exhaust fan is arranged on the side face of the protective cover, and a filter element is installed at the exhaust end of the exhaust fan. The vibrating plate is arranged at the top of the machine body, the vibrating motor is arranged at the bottom of the vibrating plate, the vibrating motor drives the vibrating plate to vibrate, then the screening disc and the tray are made to vibrate, and coarse aggregate on the screening disc is rapidly and effectively screened; and meanwhile, the exhaust fan and the filter element are arranged on the protective cover, so that generated dust can be drawn and filtered, and the situation that dust is diffused and inhaled by workers is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crushing value detection, in particular to a coarse aggregate crushing value detection equipment. BACKGROUND

[0002] In the field of construction engineering, coarse aggregate is a key component of important building materials such as concrete and asphalt mixture, and its quality directly affects the strength, durability and safety of the building structure. The crushing value of coarse aggregate is an important indicator to measure the crushing resistance of coarse aggregate under gradually increasing load, which reflects the mechanical properties and firmness of coarse aggregate. Accurate detection of the crushing value of coarse aggregate is crucial to ensure the quality of construction engineering. Therefore, some crushing value detection equipment has appeared on the market.

[0003] For example, the Chinese patent with publication number CN220650324U discloses a coarse aggregate crushing value detection equipment, which includes a bearing seat and a surrounding cover. The upper surface of the bearing seat is provided with a pressure bearing table in the middle, and support rods are vertically fixed and installed on both sides of the upper surface of the bearing seat. Two groups of support rods are horizontally fixed and installed with a top plate at the top. A gas cylinder is vertically fixed and installed on the upper surface of the top plate in the middle. The output end of the gas cylinder is connected with a pressure rod.

[0004] The crushing value detection equipment provided by the above patent can make coarse aggregate evenly distributed on the pressure bearing table through the vibration of the vibration exciter. After detection, the surrounding cover is driven upward by the pressure rod and the pressure plate, and the crushed coarse aggregate on the pressure bearing table is cleaned onto the bearing seat. The crushed coarse aggregate will fall into the collection box through the filter screen, replacing the traditional downward recessed detection groove, which facilitates the collection of coarse aggregate by the staff. However, in actual operation, the crushed coarse aggregate needs to be screened by a screen after being pressed by a press, and the crushed material needs to be separated. A large amount of dust will be generated in this process. This coarse aggregate crushing value detection equipment is not convenient for quick and effective screening of coarse aggregate, and does not have a dust reduction mechanism, which can easily cause workers to inhale a large amount of dust and affect their health. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a coarse aggregate crushing value detection equipment, which aims to improve the problem of the existing coarse aggregate crushing value detection equipment, which is not convenient for quick and effective screening of coarse aggregate, and does not have a dust reduction mechanism, which can easily cause workers to inhale a large amount of dust and affect their health.

[0006] The utility model is implemented as follows:

[0007] The utility model provides a kind of coarse aggregate crushing value detection equipment, including machine body, the top of the machine body is equipped with vibration plate, the bottom surface of the vibration plate is connected with vibration motor, and the vibration motor is electrically connected with machine body;The upper surface of the vibration plate is provided with tray, and the upper surface of the tray is provided with screening disc;The top of the machine body is provided with protective cover, the protective cover is sleeved outside vibration plate, and the side of the protective cover is provided with suction fan, and the exhaust end of the suction fan is provided with filter element.

[0008] Preferably, the front of the machine body is provided with a control panel, and the bottom corners of the machine body are each provided with a support leg, the top end of the machine body is provided with a collar, and the middle of the upper surface of the machine body is provided with a buffer groove; the side of the machine body is provided with an electrical lead, and the end of the electrical lead is provided with an electrical plug.

[0009] Preferably, the upper surface of the vibration plate is provided with a limiting groove, and the bottom corners of the bottom surface of the vibration plate are each provided with a spring, the bottom end of the spring is provided with an end plate, and the end plate is provided with a plurality of bolt holes.

[0010] Preferably, the top of the vibration motor is provided with a fixing foot, the fixing foot is provided with a fixing hole, and the vibration motor is fixed on the vibration plate by bolts; the side of the vibration motor is provided with a first communication line, and the end of the first communication line is provided with a first communication plug.

[0011] Preferably, the bottom end of the tray and the screening disc is provided with a ring, and the side of the tray and the screening disc is symmetrically provided with a handle, and the inside bottom of the screening disc is provided with a screen.

[0012] Preferably, the bottom end of the protective cover is provided with an opening, the bottom end of the protective cover is sleeved on the collar, the two sides of the protective cover are symmetrically provided with a handle, the exhaust end of the suction fan is provided with an adapter ring, the side of the suction fan is provided with a second communication line, the end of the second communication line is provided with a second communication plug, and the second communication plug is electrically connected with the machine body.

[0013] Preferably, the end of the filter element towards the suction fan is provided with a connecting ring, and the connecting ring is threadedly connected with the adapter ring.

[0014] Preferably, it further includes a compression assembly, the vibration plate is provided with a support rod near the corner, the compression assembly is sleeved on the support rod, and the compression assembly includes a mounting plate, a compression screw and a pressing plate, the compression screw is threadedly connected with the mounting plate, and the pressing plate is rotationally connected with the compression screw.

[0015] Preferably, one end of the mounting plate is provided with a threaded hole, the other end of the mounting plate is provided with a socket joint, the middle of the socket joint is provided with a socket hole, and the side of the socket joint is provided with a compression knob.

[0016] Preferably, the bottom end of the compression screw is provided with a connecting shaft, and the top end of the compression screw is provided with a rotating handle; the top end of the pressing plate is provided with an adapter, and the middle part of the adapter is provided with a bearing, and the bearing is connected with the connecting shaft in interference.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、 the utility model discloses a vibration plate is established at the top of the machine body, and the vibration motor is established at the bottom of the vibration plate, and the vibration plate is vibrated by the vibration motor, and then the screening disc and the tray are vibrated, so that the coarse aggregate on the screening disc is screened quickly and effectively, and the dust generated is extracted and filtered by the suction fan and the filter element on the protective cover, so that the staff inhales the dust.

[0019] 2、 the utility model discloses a support rod is established on the vibration plate, and the compression assembly is sleeved on the support rod, and the screening disc and the tray are compressed by the compression assembly, so that the screening disc and the tray are stably arranged on the vibration plate. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the utility model whole;

[0021] Figure 2 It is the structure schematic diagram of the utility model machine body;

[0022] Figure 3 It is the structure schematic diagram of the utility model vibration plate;

[0023] Figure 4 It is the structure schematic diagram of the utility model vibration motor;

[0024] Figure 5 It is the structure schematic diagram of the utility model screening disc;

[0025] Figure 6 It is the structure schematic diagram of the utility model protective cover;

[0026] Figure 7 It is the structure schematic diagram of the utility model filter element;

[0027] Figure 8 It is the structure schematic diagram of the utility model compression assembly.

[0028] In the figure: 1, the body; 11, the control panel; 12, the supporting leg; 13, the insertion ring; 14, the buffer groove; 15, the power supply wire; 16, the power supply plug; 2, the vibrating plate; 21, the spring; 22, the end plate; 23, the bolt hole; 24, the limiting recess; 25, the supporting rod; 3, the vibrating motor; 31, the fixing foot; 32, the fixing hole; 33, the first communication line; 34, the first communication plug; 4, the tray; 5, the screening disc; 51, the screen; 52, the handle; 53, the insertion ring; 6, the protective cover; 61, the grip; 62, the air extraction fan; 63, the adapter ring; 64, the second communication line; 65, the second communication plug; 7, the filter element; 71, the connecting ring; 8, the pressing assembly; 81, the mounting plate; 811, the threaded hole; 812, the socket; 813, the socket hole; 814, the pressing knob; 82, the pressing screw; 821, the rotating handle; 822, the connecting shaft; 83, the pressing plate; 831, the adapter; 832, the bearing. DETAILED DESCRIPTION

[0029] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0030] The following will be further described in combination with the drawings and specific embodiments:

[0031] Embodiment 1

[0032] As Figure 1 shown, a coarse aggregate crushing value detection device, including the body 1, the body 1 top end is equipped with the vibrating plate 2, the vibrating plate 2 bottom surface is connected with the vibrating motor 3, the vibrating motor 3 and the body 1 electrically connected;The vibrating motor 3 drives the vibrating plate 2 to vibrate, thereby facilitating the vibration screening of the crushed coarse aggregate. The upper surface of the vibrating plate 2 is provided with a tray 4, and the upper surface of the tray 4 is provided with a screening disc 5;The tray 4 is convenient for receiving the screened coarse aggregate, and the screening disc 5 is convenient for screening the coarse aggregate. The top of the body 1 is provided with a protective cover 6, the protective cover 6 is sleeved outside the vibrating plate 2, and the side surface of the protective cover 6 is provided with an air extraction fan 62, the exhaust end of the air extraction fan 62 is provided with a filter element 7, the protective cover 6 cooperates with the air extraction fan 62 to facilitate the air flow in the protective cover 6, and the filter element 7 can filter the dust in the air. And a gap is left between the protective cover 6 and the body 1, which cannot be too tight, to ensure that the external airflow can enter the protective cover 6 through the gap to realize the flow of the airflow.

[0033] AsFigure 2 As shown in the figure, the front of the body 1 is provided with an operation panel 11, which is convenient for operating the whole device. And the bottom corners of the body 1 are provided with supporting legs 12, which are convenient for supporting the body 1 stably. The top end of the body 1 is provided with a plug ring 13, which is convenient for cooperating with the protective cover 6. The upper surface of the body 1 is provided with a buffer groove 14 in the middle; the buffer groove 14 is convenient for leaving space for the installation of the vibration motor 3. The side of the body 1 is provided with an electrical connecting wire 15, and the end of the electrical connecting wire 15 is provided with an electrical connecting plug 16. The electrical connecting wire 15 and the electrical connecting plug 16 are convenient for connecting the body 1 to the power supply, and convenient for the operation of the body 1.

[0034] As shown in the figure, Figure 3 The upper surface of the vibration plate 2 is provided with a limiting groove 24, which is convenient for limiting each other with the tray 4. And the bottom corners of the vibration plate 2 are provided with springs 21, the bottom end of the spring 21 is provided with an end plate 22, and the end plate 22 is provided with a plurality of bolt holes 23. The spring 21 is convenient for vibration of the vibration plate 2, and the cooperation of the end plate 22 and the bolt hole 23 is convenient for fixing the bottom end of the spring 21 on the body 1 through the bolt.

[0035] As shown in the figure, Figure 4 The top of the vibration motor 3 is provided with a fixing foot 31, and the fixing foot 31 is provided with a fixing hole 32. The fixing foot 31 and the fixing hole 32 are convenient for fixing the position of the vibration motor 3 through the bolt. The vibration motor 3 is fixed on the vibration plate 2 through the bolt; the side of the vibration motor 3 is provided with a first communication line 33, and the end of the first communication line 33 is provided with a first communication plug 34. The first communication line 33 and the first communication plug 34 are convenient for electrically connecting the vibration motor 3 with the body 1.

[0036] As shown in the figure, Figure 5 The bottom end of the tray 4 and the sieve plate 5 is provided with a plug ring 53, which is convenient for stacking the tray 4 and the sieve plate 5, and also convenient for limiting the tray 4 and the vibration plate 2. And the side of the tray 4 and the sieve plate 5 is symmetrically provided with a handle 52, which is convenient for holding the tray 4, and convenient for flexible disassembly and use of the tray 4. The inner side of the sieve plate 5 is provided with a sieve net 51, which is convenient for screening the coarse aggregate.

[0037] As shown in the figure, Figure 6 The bottom end of the protective cover 6 is provided with an opening, and the bottom end of the protective cover 6 is sleeved on the plug ring 13. This structure is convenient for setting the protective cover 6 on the top of the body 1. The two sides of the protective cover 6 are symmetrically provided with a handle 61, which is convenient for holding the protective cover 6. The exhaust fan 62 is provided with an adapter ring 63 at the exhaust end, which is convenient for screwing with the filter element 7. The side of the exhaust fan 62 is provided with a second communication line 64, and the end of the second communication line 64 is provided with a second communication plug 65. The second communication plug 65 is electrically connected with the body 1, which is convenient for the electric operation and use of the exhaust fan 62.

[0038] AsFigure 7 As shown, the end of the filter element 7 facing the exhaust fan 62 is provided with a connecting ring 71, which is threadedly connected to the adapter ring 63, making it convenient to disassemble and use the filter element 7.

[0039] Example 2

[0040] like Figure 1 As shown, a coarse aggregate crushing value testing device includes a machine body 1. A vibrating plate 2 is mounted on the top of the machine body 1, and a vibrating motor 3 is connected to the bottom of the vibrating plate 2. The vibrating motor 3 is electrically connected to the machine body 1. The vibrating motor 3 drives the vibrating plate 2 to vibrate, thereby facilitating rapid and efficient vibration screening of the crushed coarse aggregate. A tray 4 is mounted on the upper surface of the vibrating plate 2, and a screening disc 5 is mounted on the upper surface of the tray 4. The tray 4 facilitates the collection of screened coarse aggregate, and the screening disc 5 facilitates the screening of the coarse aggregate. A protective cover 6 is mounted on the top of the machine body 1, fitted over the vibrating plate 2. An exhaust fan 62 is mounted on the side of the protective cover 6, and a filter element 7 is installed at the exhaust end of the exhaust fan 62. The protective cover 6, in conjunction with the exhaust fan 62, facilitates the extraction of airflow within the protective cover 6, and the filter element 7 filters dust from the air. A gap must be left between the protective cover 6 and the machine body 1; they should not be too tightly fitted to ensure that external airflow can enter the protective cover 6 through the gap, thus achieving airflow.

[0041] like Figure 2 As shown, the front of the machine body 1 is equipped with a control panel 11, which facilitates the operation of the entire device. Support feet 12 are provided at the corners of the bottom surface of the machine body 1, providing stable support for the machine body 1. A retaining ring 13 is provided at the top of the machine body 1, which is used in conjunction with the protective cover 6. A buffer groove 14 is provided in the middle of the upper surface of the machine body 1, providing space for the installation of the vibration motor 3. A power connection wire 15 is provided on the side of the machine body 1, with a power connector 16 at the end of the power connection wire 15. The power connection wire 15 and the power connector 16 facilitate power connection to the machine body 1, enabling its operation.

[0042] like Figure 3 As shown, the upper surface of the vibrating plate 2 is provided with a limiting groove 24, which facilitates mutual limiting with the tray 4. Furthermore, springs 21 are provided at the corners of the bottom surface of the vibrating plate 2, and end plates 22 are provided at the bottom ends of the springs 21. Multiple bolt holes 23 are provided on the end plates 22. The springs 21 facilitate the vibration of the vibrating plate 2, and the cooperation between the end plates 22 and the bolt holes 23 facilitates fixing the bottom ends of the springs 21 to the machine body 1 using bolts.

[0043] like Figure 4As shown, the top of the vibration motor 3 is provided with a fixed foot 31, and the fixed foot 31 is provided with a fixed hole 32. The fixed foot 31 and the fixed hole 32 are convenient for fixing the position of the vibration motor 3 by bolts. The vibration motor 3 is fixed on the vibration plate 2 by bolts. The side of the vibration motor 3 is provided with a first communication line 33, and the end of the first communication line 33 is provided with a first communication plug 34. The first communication line 33 and the first communication plug 34 are convenient for electrically connecting the vibration motor 3 and the machine body 1.

[0044] As shown in Figure 5 , the tray 4 and the sieve plate 5 are provided with an insertion ring 53 at the bottom end. The insertion ring 53 is convenient for stacking the tray 4 and the sieve plate 5, and also convenient for limiting the position of the tray 4 and the vibration plate 2. The side of the tray 4 and the sieve plate 5 is symmetrically provided with a handle 52. The handle 52 is convenient for holding the tray 4, and facilitates the flexible disassembly and use of the tray 4. The sieve plate 5 is provided with a sieve 51 at the bottom of the inner side. The sieve 51 is convenient for screening the coarse aggregate.

[0045] As shown in Figure 6 , the protective cover 6 is provided with an opening at the bottom end, and the bottom end of the protective cover 6 is sleeved on the insertion ring 13. This structure is convenient for setting the protective cover 6 on the top of the machine body 1. The protective cover 6 is symmetrically provided with a handle 61 on both sides. The handle 61 is convenient for holding the protective cover 6. The exhaust fan 62 is provided with an adapter ring 63 at the exhaust end. The adapter ring 63 is convenient for screwing with the filter element 7. The side of the exhaust fan 62 is provided with a second communication line 64, and the end of the second communication line 64 is provided with a second communication plug 65. The second communication plug 65 is electrically connected with the machine body 1, which is convenient for the exhaust fan 62 to work and use.

[0046] As shown in Figure 7 , the filter element 7 is provided with a connecting ring 71 at the end facing the exhaust fan 62. The connecting ring 71 is screw-connected with the adapter ring 63, which is convenient for disassembling and using the filter element 7.

[0047] As shown in Figure 1 , Figure 3 , and Figure 8As shown, the pressing assembly 8 is arranged on the support rod 25 near the corner of the vibrating plate 2, and the pressing assembly 8 is sleeved on the support rod 25. The pressing assembly 8 is convenient for pressing on the screening disc 5 and the tray 4. The pressing assembly 8 comprises a mounting plate 81, a pressing screw 82 and a pressing plate 83. The pressing screw 82 is threadedly connected with the mounting plate 81, and the pressing plate 83 is rotationally connected with the pressing screw 82. The cooperation of the pressing screw 82 and the pressing plate 83 is convenient for pressing on the upper surface of the screening disc 5. The mounting plate 81 is convenient for supporting various components. One end of the mounting plate 81 is provided with a threaded hole 811, which is convenient for rotationally connecting with the pressing screw 82. The other end of the mounting plate 81 is provided with a sleeve joint 812. The sleeve joint 812 is provided with a sleeve hole 813 in the middle. The sleeve joint 812 and the sleeve hole 813 are convenient for sleeving on the support rod 25. The sleeve joint 812 is provided with a pressing knob 814 on the side. The pressing knob 814 is convenient for fixing the position of the mounting plate 81. The bottom end of the pressing screw 82 is provided with a connecting shaft 822, and the top end of the pressing screw 82 is provided with a rotating handle 821. The top end of the pressing plate 83 is provided with an adapter 831. The adapter 831 is provided with a bearing 832 in the middle. The bearing 832 is interference-connected with the connecting shaft 822. This structure is convenient for rotationally connecting the pressing plate 83 with the pressing screw 82. The pressing plate 83 is pressed on the screening disc 5 under the driving of the pressing screw 82, and the pressing plate 83 does not rotate with the pressing screw 82.

[0048] Working principle: in use, the coarse aggregate to be screened is poured into the screening disc 5, then the screening disc 5 is matched with the tray 4 and placed on the vibrating plate 2, and the screening disc 5 and the tray 4 are pressed on the vibrating plate 2 by the pressing assembly 8. Then the protective cover 6 is sleeved on the top of the machine body 1, and the suction fan 62 is powered on. Then the vibrating motor 3 is controlled to vibrate by the machine body 1. The vibrating of the vibrating motor 3 quickly screens the coarse aggregate in the screening disc 5, and the dust generated is sucked into the filter element 7 for filtration. After screening, the tray 4 and the screening disc 5 are removed, and the coarse aggregate in them is weighed and recorded respectively, so as to calculate the crushing value subsequently.

[0049] In summary, compared with the prior art, the machine body 1 is provided with the vibrating plate 2 on the top, and the vibrating motor 3 is arranged at the bottom of the vibrating plate 2. The vibrating motor 3 drives the vibrating plate 2 to vibrate, so that the screening disc 5 and the tray 4 vibrate, thereby realizing quick and effective screening of the coarse aggregate on the screening disc 5. Meanwhile, the protective cover 6 is provided with the suction fan 62 and the filter element 7, so that the dust generated can be sucked and filtered, avoiding the spread of dust to be inhaled by the workers.

[0050] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A coarse aggregate crushing value detection apparatus comprising a machine body (1), characterized in that, The top of the machine body (1) is provided with a vibrating plate (2), the bottom surface of the vibrating plate (2) is connected with a vibrating motor (3), the vibrating motor (3) is electrically connected with the machine body (1); the upper surface of the vibrating plate (2) is provided with a tray (4), the upper surface of the tray (4) is provided with a screening disc (5); the top of the machine body (1) is provided with a protective cover (6), the protective cover (6) is sleeved outside the vibrating plate (2), and the side of the protective cover (6) is provided with an air exhaust fan (62), and the exhaust end of the air exhaust fan (62) is provided with a filter element (7).

2. The coarse aggregate crush value detection apparatus according to claim 1, wherein The front of the machine body (1) is provided with a control panel (11), the bottom corners of the machine body (1) are provided with supporting legs (12), the top of the machine body (1) is provided with a ring (13), and the upper surface of the machine body (1) is provided with a buffer groove (14); the side of the machine body (1) is provided with an electric lead (15), and the end of the electric lead (15) is provided with an electric plug (16).

3. The coarse aggregate crush value detection apparatus according to claim 1, wherein The upper surface of the vibrating plate (2) is provided with a limiting groove (24), and the bottom corners of the vibrating plate (2) are provided with springs (21), the bottom end of the spring (21) is provided with an end plate (22), and the end plate (22) is provided with a plurality of bolt holes (23).

4. The coarse aggregate crush value detection apparatus according to claim 1, wherein The top of the vibrating motor (3) is provided with a fixing foot (31), the fixing foot (31) is provided with a fixing hole (32), and the vibrating motor (3) is fixed on the vibrating plate (2) through bolts; the side of the vibrating motor (3) is provided with a first communication line (33), and the end of the first communication line (33) is provided with a first communication plug (34).

5. The coarse aggregate crush value detection apparatus according to claim 1, wherein The bottom end of the tray (4) and the screening disc (5) is provided with a ring (53), and the side of the tray (4) and the screening disc (5) is symmetrically provided with a handle (52), and the inside bottom of the screening disc (5) is provided with a screen (51).

6. The coarse aggregate crush value detection apparatus according to claim 2, wherein The bottom end of the protective cover (6) is provided with an opening, the bottom end of the protective cover (6) is sleeved on the ring (13), the two sides of the protective cover (6) are symmetrically provided with a handle (61), the exhaust end of the air exhaust fan (62) is provided with an adapter ring (63), the side of the air exhaust fan (62) is provided with a second communication line (64), the end of the second communication line (64) is provided with a second communication plug (65), and the second communication plug (65) is electrically connected with the machine body (1).

7. The coarse aggregate crush value detection apparatus according to claim 1, wherein The end of the filter element (7) facing the air exhaust fan (62) is provided with a connecting ring (71), and the connecting ring (71) is threadedly connected with the adapter ring (63).

8. A coarse aggregate crush value testing apparatus as claimed in any one of claims 1 to 7, wherein, Further comprising a pressing assembly (8), the vibrating plate (2) is provided with a supporting rod (25) near the corner, the pressing assembly (8) is sleeved on the supporting rod (25), and the pressing assembly (8) comprises a mounting plate (81), a pressing screw (82) and a pressing plate (83), the pressing screw (82) is threadedly connected with the mounting plate (81), and the pressing plate (83) is rotationally connected with the pressing screw (82).

9. A coarse aggregate crush value testing apparatus according to claim 8, wherein, One end of the mounting plate (81) is provided with a threaded hole (811), and the other end of the mounting plate (81) is provided with a sleeve joint (812), the middle of the sleeve joint (812) is provided with a sleeve joint hole (813), and the side of the sleeve joint (812) is provided with a pressing knob (814).

10. The coarse aggregate crush value detection apparatus according to claim 8, wherein The bottom end of the pressing screw (82) is provided with a connecting shaft (822), and the top end of the pressing screw (82) is provided with a rotating handle (821); the top end of the pressing plate (83) is provided with an adapter (831), the middle of the adapter (831) is provided with a bearing (832), and the bearing (832) is connected with the connecting shaft (822) in interference.

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