Compression resistance detection device for cement products

Abstract

The invention discloses a cement product compression resistance detection device, which comprises a base, the upper end of the base is provided with a collection groove, the left side wall of the collection groove is provided with an inclined guide groove, the base is fixedly connected with an L-shaped frame, the L-shaped frame is composed of a horizontal plate and a vertical plate, the upper end of the base is fixedly connected with a concentric-square-shaped frame, and the horizontal plate and the vertical plate are fixedly connected with the concentric-square-shaped frame. A placing layer is arranged at the upper end of the base and is located in the concentric-square-shaped frame; a hydraulic telescopic rod is installed at the lower end of the horizontal plate, the telescopic end of the hydraulic telescopic rod is fixedly connected with a lifting plate, and the lower end of the lifting plate is rotationally connected with a rotating shaft. In actual use of the device, the lower end face of the pressurizing block and the position, where a cement test block is placed, on the base can be cleaned after detection is conducted every time, the situation that subsequent detection is affected by cement chippings generated by detection is avoided, and in addition, the situation that the chippings are sputtered can be avoided by being used in cooperation with the concentric-square-shaped frame.

Description

Technical Field

[0001] The invention relates to the field of cement product processing, and in particular to a compression resistance detection device for cement products. Background Art

[0002] Cement test block, also known as mortar test block, is a kind of cement product. It refers to a material made by mixing mortar in proportion and putting it into a mortar test mold. It is a cubic test block made to test the strength grade of mortar. The existing device for testing cement test blocks generally uses a pressure plate to apply pressure through a hydraulic telescopic rod; However, in actual use, some cement test blocks may be damaged due to non-compliance with the standards. Under greater pressure, the broken cement test blocks may cause splashing, which can easily injure the surrounding testers. In addition, if the cement test blocks are damaged, cement debris may adhere to the upper surface of the test platform and the pressure plate used to apply pressure. If they are not cleaned in time, the accuracy of subsequent tests will be affected. In the existing method, manual cleaning is generally required, which will obviously affect the efficiency of continuous testing. Therefore, we need to consider how to solve this problem. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a compression resistance testing device for cement products is proposed. In actual use, the lower end surface of the pressure block and the place where the cement test block is placed on the base can be cleaned after each test to avoid the cement debris generated by the test affecting subsequent tests. In addition, the use of a circular frame can avoid the splashing of debris.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A compression testing device for cement products, comprising a base, a collecting trough is provided at the upper end of the base, an inclined guide groove is provided on the left side wall of the collecting trough, an L-shaped frame is fixedly connected to the upper end of the base, the L-shaped frame is composed of a horizontal plate and a vertical plate, a circular frame is fixedly connected to the upper end of the base, a placement layer is provided at the upper end of the base, and the placement layer is located inside the circular frame; a hydraulic telescopic rod is installed at the lower end of the horizontal plate, a lifting plate is fixedly connected to the telescopic end of the hydraulic telescopic rod, and the lower end of the lifting plate is rotated A rotating shaft is movably connected, and a rotating circular plate is fixedly connected to the lower end of the rotating shaft, and a pressure block is fixedly connected to the lower right end of the rotating circular plate, and a cavity is arranged in the lifting plate; a first cleaning mechanism for cleaning the lower end surface of the pressure block is jointly arranged in the cavity and the lower end of the lifting plate; a connecting box is fixedly connected to the upper end of the base, and a second cleaning mechanism for cleaning the placement layer is jointly arranged in the connecting box and the inside of the circular frame; a filter box is installed on the right side of the circular frame, and a dust collection mechanism is jointly arranged in the vertical plate and the inside of the filter box.

[0005] Preferably, the first cleaning mechanism includes a first magnetic slider slidably connected in the cavity, the right side of the first magnetic slider is elastically connected to the right inner wall of the cavity through a first spring, a first electromagnet is embedded on the right inner wall of the cavity, and the first electromagnet repels the adjacent surface of the first magnetic slider with the same charge when energized, the upper end of the rotating shaft extends into the cavity and is fixedly connected to a gear, the left side of the first magnetic slider is fixedly connected to a rack, the rack is meshed with the gear, the lower end of the rotating circular plate is fixedly connected to an L-shaped wiping plate, and the upper end surface of the horizontal part of the L-shaped wiping plate is provided with a first sponge layer.

[0006] Preferably, the second cleaning mechanism includes a second magnetic slider slidably connected to the connecting box, the left side of the second magnetic slider is elastically connected to the left inner wall of the connecting box by a second spring, a second electromagnet is embedded on the left inner wall of the connecting box, and the second electromagnet repels the adjacent surface of the second magnetic slider with the same charge when energized, a connecting rod is fixedly connected to the right side of the second magnetic slider, strip openings are embedded on the left and right inner walls of the bottom space of the circular frame, sliding bars that can slide left and right are arranged in the two strip openings, a second sponge layer is arranged at the lower end of the sliding bar on the left, the two sliding bars are fixedly connected by two connecting bars, and the right side of the connecting rod passes through the right inner wall of the connecting box and is fixedly connected to the left sliding bar.

[0007] Preferably, the dust collecting mechanism includes a fixed plate fixedly connected to the right side of the horizontal plate, a strip-shaped opening is opened on the left inner wall of the circular frame, a connecting block is fixedly connected to the left side of the lifting plate, the left side of the connecting block passes through the strip opening and is fixedly connected to a sliding sleeve, the left side of the sliding sleeve is fixedly connected to a movable plate, an airbag is arranged between the movable plate and the fixed plate, a filter box is fixedly connected to the right side of the circular frame, an adsorption chamber is arranged in the right inner wall of the circular frame, a plurality of air suction ports are opened on the left inner wall of the adsorption chamber, the top space of the filter box is connected with the adsorption chamber through a connecting pipe, the bottom space of the filter box is connected with the airbag through an air inlet pipe, the bottom space of the airbag is connected with the outside through an air outlet pipe, and a one-way valve is installed in both the air inlet pipe and the air outlet pipe.

[0008] Preferably, the lower end of the horizontal plate is fixedly connected to a vertical rod, the lower end of the vertical rod passes through a sliding sleeve, and power connection blocks are embedded on the inner walls of the left and right sides of the sliding sleeve, and the two power connection blocks are made of iron. A plurality of annular conductive layers are arranged at equal intervals on the upper side of the vertical rod, and the plurality of conductive layers are made of copper, and the two power connection blocks cooperate with the first electromagnet.

[0009] Preferably, a rectangular cavity is provided in the vertical rod, a magnetic grounding slider which can slide up and down is provided in the rectangular cavity, a touch delay switch is installed on the inner top of the rectangular cavity, and the touch delay switch cooperates with the second electromagnet.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. During the contraction of the hydraulic telescopic rod, the first electromagnet will be intermittently energized. In conjunction with the use of the first spring and the first magnetic slider, the intermittent energization of the first electromagnet will cause the first magnetic slider to reciprocate left and right, and the first magnetic slider will drive the gear to intermittently reciprocate through the rack, and finally drive the pressure block to reciprocate through the rotating shaft and the rotating circular plate. The smoke hydraulic telescopic rod rotates back and forth, and moves relative to the first sponge layer on the L-shaped wiping plate, thereby cleaning the lower end surface of the pressure block and avoiding debris adhering to the lower end surface of the pressure block and affecting the subsequent continuous detection accuracy.

[0011] 2. During the contraction of the hydraulic telescopic rod, the second electromagnet will be energized for a period of time. After being energized, the second electromagnet will give a repulsive force to the second magnetic slider, causing it to move right. After the second magnetic slider moves right, it will drive the two sliding bars to move right through the connecting rod, and the sliding bar on the left moves right. When passing through the inside of the circular frame, it will drive the cement test block to move right until it moves to the collecting trough. Under the force of gravity, the cement test block slides down the inclined guide groove into the collecting trough, which is convenient for subsequent material collection. In addition, since a second sponge layer is provided at the lower end of the sliding bar on the left, if the cement test block is broken during the detection process, the second sponge layer can also be used to wipe the placement layer comprehensively to avoid residual debris at the placement layer affecting the accuracy of subsequent detection.

[0012] 3. The setting of the circular frame can ensure that even if the cement test block is severely broken and splashed during the detection process, it will not affect the testers. In the process of contraction of the above-mentioned hydraulic telescopic rod, the return movement of the movable plate will stretch the airbag. Through the setting of the air inlet pipe, a gas flow from the inside of the circular frame to the filter box can be generated. If the cement test block is severely broken and some dust is generated, the dust will be collected in the filter box, and with the shielding of the circular frame, it can be prevented that the dust spreads to the surroundings and affects the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a compression testing device for cement products proposed by the present invention; Figure 2 for Figure 1 A magnified image of point A; Figure 3 for Figure 1 The enlarged view of point B; Figure 4 for Figure 1 Enlarged view of point C; Figure 5 for Figure 1 The enlarged view of point D; Figure 6 for Figure 1 Enlarged view of point E.

[0014] In the figure: 1 base, 2 collecting tank, 3 L-shaped frame, 4 hydraulic telescopic rod, 5 vertical rod, 6 conductive layer, 7 circular frame, 8 moving plate, 9 airbag, 10 connecting box, 11 sliding bar, 12 lifting plate, 13 L-shaped wiping plate, 14 rectangular cavity, 15 touch delay switch, 16 magnetic grounding slider, 17 strip-shaped mouth, 18 connecting block, 19 sliding sleeve, 20 connecting block, 21 fixed plate, 22 air outlet pipe, 23 air inlet pipe, 24 second electromagnet, 25 second magnetic slider, 26 second spring, 27 connecting rod, 28 first electromagnet, 29 first magnetic slider, 30 first spring, 31 rack, 32 gear, 33 rotating circular plate, 34 pressure block, 35 rotating shaft, 36 filter box, 37 connecting pipe, 38 adsorption cavity, 39 connecting strip. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] Reference Figure 1-6 A compression testing device for cement products includes a base 1, a collecting tank 2 is provided at the upper end of the base 1, an inclined guide groove is provided on the left wall of the collecting tank 2, an L-shaped frame 3 is fixedly connected to the upper end of the base 1, the L-shaped frame 3 is composed of a horizontal plate and a vertical plate, a circular frame 7 is fixedly connected to the upper end of the base 1, a sealing door body is also provided on the front side of the circular frame 7, a placement layer is provided at the upper end of the base 1, the placement layer is directly opposite to the bottom of the pressure block 34, and the place can be marked in actual use, and the placement layer is located inside the circular frame 7; As an embodiment of the present invention, a hydraulic telescopic rod 4 is installed at the lower end of the horizontal plate, and the telescopic end of the hydraulic telescopic rod 4 is fixedly connected to the lifting plate 12, and the lower end of the lifting plate 12 is rotatably connected to the rotating shaft 35, and the lower end of the rotating shaft 35 is fixedly connected to the rotating circular plate 33, and the lower right end of the rotating circular plate 33 is fixedly connected to the pressure block 34, and a cavity is provided in the lifting plate 12; As an embodiment of the present invention, the cavity and the lower end of the lifting plate 12 are jointly provided with a first cleaning mechanism for cleaning the lower end surface of the pressure block 34, the first cleaning mechanism includes a first magnetic slider 29 slidably connected in the cavity, the right side of the first magnetic slider 29 is elastically connected to the right inner wall of the cavity through a first spring 30, a first electromagnet 28 is embedded on the right inner wall of the cavity, and the first electromagnet 28 repels the adjacent surface of the first magnetic slider 29 with the same charge after being energized, the upper end of the rotating shaft 35 extends into the cavity and is fixedly connected to a gear 32, the left side of the first magnetic slider 29 is fixedly connected to a rack 31, the rack 31 is meshed with the gear 32, the lower end of the rotating circular plate 33 is fixedly connected to an L-shaped wiping plate 13, and the upper end surface of the horizontal part of the L-shaped wiping plate 13 is provided with a first sponge layer; As an embodiment of the present invention, a connection box 10 is fixedly connected to the upper end of the base 1, and a second cleaning mechanism for cleaning the placement layer is jointly provided inside the connection box 10 and the circular frame 7, and the second cleaning mechanism includes a second magnetic slider 25 slidably connected to the connection box 10, and the left side of the second magnetic slider 25 is elastically connected to the left inner wall of the connection box 10 through a second spring 26, and a second electromagnet 24 is embedded on the left inner wall of the connection box 10. After the second electromagnet 24 is energized, it repels the adjacent surface of the second magnetic slider 25 with the same sex, and a connecting rod 27 is fixedly connected to the right side of the second magnetic slider 25, and strip-shaped openings are embedded on the inner walls on both sides of the left and right sides of the bottom space of the circular frame 7, and sliding bars 11 that can slide left and right are provided in the two strip-shaped openings, and a second sponge layer is provided at the lower end of the sliding bar 11 on the left side, and the two sliding bars 11 are fixedly connected by two connecting bars 39, and the right side of the connecting rod 27 passes through the right inner wall of the connection box 10 and is fixedly connected to the left sliding bar 11; As an embodiment of the present invention, a filter box 36 is installed on the right side of the circular frame 7, and a filter element is installed in the filter box 36. A dust collection mechanism is provided inside the vertical plate and the filter box 36. The dust collection mechanism includes a fixed plate 21 fixedly connected to the right side of the horizontal plate. A strip-shaped opening 17 is provided on the left inner wall of the circular frame 7. A connecting block 18 is fixedly connected to the left side of the lifting plate 12. The left side of the connecting block 18 passes through the strip-shaped opening 17 and is fixedly connected to a sliding sleeve 19. The left side of the sliding sleeve 19 is fixedly connected to a movable plate 8. An airbag 9 is provided between the movable plate 8 and the fixed plate 21. A filter box 36 is fixedly connected to the right side of the circular frame 7, an adsorption chamber 38 is arranged in the right inner wall of the circular frame 7, and a plurality of air suction ports are opened on the left inner wall of the adsorption chamber 38. The top space of the filter box 36 is connected with the adsorption chamber 38 through a connecting pipe 37, and the bottom space of the filter box 36 is connected with the air bag 9 through an air inlet pipe 23, and the bottom space of the air bag 9 is connected with the outside through an air outlet pipe 22. A one-way valve is installed in both the air inlet pipe 23 and the air outlet pipe 22. The one-way valve in the air inlet pipe 23 flows in a one-way direction for the filter box 36 to enter the air bag 9, and the one-way valve in the air outlet pipe 22 flows in a one-way direction for the air bag 9 to be discharged from the outside; As an embodiment of the present invention, the lower end of the horizontal plate is fixedly connected to a vertical rod 5, the lower end of the vertical rod 5 passes through a sliding sleeve 19, and power blocks 20 are embedded on the inner walls of the left and right sides of the sliding sleeve 19, and the two power blocks 20 are made of iron. A plurality of annular conductive layers 6 are arranged at equal intervals on the upper side of the vertical rod 5, and the material of the plurality of conductive layers 6 is copper. The two power blocks 20 cooperate with the first electromagnet 28, and a rectangular cavity 14 is arranged in the vertical rod 5, and a magnetic grounding slider 16 that can slide up and down is arranged in the rectangular cavity 14. A touch delay switch 15 is installed on the inner top of the rectangular cavity 14, and the touch delay switch 15 cooperates with the second electromagnet 24. It also includes an external power supply, and the external power supply The positive pole of the power source is electrically connected to the power connection block 20 on the left, and the negative pole of the external power supply, the first electromagnet 28 and the power connection block 20 on the right are electrically connected in sequence, that is, when the two power connection blocks 20 are in contact with the conductive layer 6 at the same time, the first electromagnet 28 will be energized, and the touch delay switch 15, the second electromagnet 24 and the external power supply form a loop, and the first electromagnet 28 and the second electromagnet 24 both use high-power electromagnets to ensure that the magnetism generated after power-on is sufficient to meet the needs. It should be noted here that the touch delay switch 15 is set in this way, and it will only be energized once when the hydraulic telescopic rod 4 is contracted, and the touch delay switch 15 will not be energized when it is extended.

[0017] In the present invention, when performing the compression test, the sealing door is first opened, and then the cement test block is placed on the placement layer, the sealing door is closed, and the hydraulic telescopic rod 4 is controlled to extend through an external program. After the hydraulic telescopic rod 4 extends, the pressurizing block 34 is driven downward through the lifting plate 12, the rotating shaft 35 and the rotating circular plate 33 to pressurize the cement test block. After the pressurization is completed, the hydraulic telescopic rod 4 is started to contract, and the entire testing process can be completed; During the contraction of the hydraulic telescopic rod 4, when the lifting plate 12 moves back, the sliding sleeve 19 will be driven to move up through the connecting block 18, so that the two power blocks 20 will intermittently contact the multiple conductive layers 6, so that the first electromagnet 28 will be intermittently energized, and with the use of the first spring 30 and the first magnetic slider 29, the intermittent energization of the first electromagnet 28 will make the first magnetic slider 29 reciprocate left and right, and the first magnetic slider 29 will drive the gear 32 to intermittently reciprocate through the rack 31, and finally drive the pressure block 35 to reciprocate through the rotating shaft 35 and the rotating circular plate 33. The smoke hydraulic telescopic rod 4 rotates back and forth, and moves relative to the first sponge layer on the L-shaped wiping plate 13, so as to clean the lower end surface of the pressure block 34, and avoid the adhesion of debris to the lower end surface of the pressure block 34 to affect the subsequent continuous detection accuracy; When the sleeve 19 moves up and leaves the uppermost conductive layer 6, it will pass through the rectangular cavity 14. When passing through the rectangular cavity 14, the magnetic grounding slider 16 will be driven to move up by the magnetic effect until the magnetic grounding slider 16 contacts the touch delay switch 15. The magnetic grounding slider 16 cannot move up any further, but the sleeve 19 will continue to move up. After the magnetic force decreases, the magnetic grounding slider 16 moves down under the action of gravity. That is, during the contraction of the hydraulic telescopic rod 4, the magnetic grounding slider 16 will contact the touch delay switch 15 once, so that the second electromagnet 24 will be energized for a period of time. After the second electromagnet 24 is energized, it will give the second magnetic slider 25 a repulsive force, causing it to move right. After the second magnetic slider 25 moves to the right, it will drive the two sliding bars 11 to move to the right through the connecting rod 27. The sliding bar 11 on the left moves to the right. When passing through the inside of the circular frame 7, it will drive the cement test block to move to the right until it moves to the collecting tank 2. The cement test block slides into the collecting tank 2 along the inclined guide groove due to gravity, which is convenient for the subsequent material collection. Moreover, since a second sponge layer is provided at the lower end of the sliding bar 11 on the left, if the cement test block is broken during the detection process, the placement layer can also be fully wiped through the second sponge layer to avoid the situation where residual debris in the placement layer affects the accuracy of subsequent detection. When the touch delay switch 15 is powered off, the two sliding bars 11 will eventually return to their original positions due to the elastic action of the second spring 26. Figure 5 state; It should also be noted that, through the provision of the circular frame 7, it can be ensured that even if the cement test block is severely broken and splashed during the detection process, it will not affect the test personnel, and during the contraction of the above-mentioned hydraulic telescopic rod 4, the return movement of the movable plate 8 will stretch the airbag 9. Through the provision of the air inlet pipe 23, a gas flow from the inside of the circular frame 7 to the filter box 36 can be generated. If the cement test block is severely broken and some dust is generated, the dust will be collected in the filter box 36, and with the shielding of the circular frame 7, it can be prevented that the dust spreads to the surroundings and affects the staff.

[0018] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compression testing device for cement products, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a collecting groove (2), the left side wall of the collecting groove (2) is provided with an inclined guide groove, the upper end of the base (1) is fixedly connected with an L-shaped frame (3), the L-shaped frame (3) is composed of a horizontal plate and a vertical plate, the upper end of the base (1) is fixedly connected with a circular frame (7), the upper end of the base (1) is provided with a placement layer, and the placement layer is located inside the circular frame (7); A hydraulic telescopic rod (4) is installed at the lower end of the horizontal plate, the telescopic end of the hydraulic telescopic rod (4) is fixedly connected to a lifting plate (12), the lower end of the lifting plate (12) is rotatably connected to a rotating shaft (35), the lower end of the rotating shaft (35) is fixedly connected to a rotating circular plate (33), the lower right end of the rotating circular plate (33) is fixedly connected to a pressure block (34), and a cavity is provided inside the lifting plate (12); The cavity and the lower end of the lifting plate (12) are jointly provided with a first cleaning mechanism for cleaning the lower end surface of the pressure block (34); The upper end of the base (1) is fixedly connected to a connection box (10), and the connection box (10) and the circular frame (7) are provided with a second cleaning mechanism for cleaning the placement layer; A filter box (36) is installed on the right side of the circular frame (7), and a dust collection mechanism is provided inside the vertical plate and the filter box (36).

2. A compression testing device for cement products according to claim 1, characterized in that: The first cleaning mechanism comprises a first magnetic slider (29) slidably connected in the cavity, the right side of the first magnetic slider (29) being elastically connected to the right inner wall of the cavity via a first spring (30), a first electromagnet (28) being embedded in the right inner wall of the cavity, the first electromagnet (28) being energized and repelling the adjacent surface of the first magnetic slider (29) in the same manner, the upper end of the rotating shaft (35) extending into the cavity and being fixedly connected to a gear (32), the left side of the first magnetic slider (29) being fixedly connected to a rack (31), the rack (31) being meshed with the gear (32), the lower end of the rotating circular plate (33) being fixedly connected to an L-shaped wiping plate (13), the upper end surface of the horizontal portion of the L-shaped wiping plate (13) being provided with a first sponge layer.

3. A compression testing device for cement products according to claim 2, characterized in that: The second cleaning mechanism comprises a second magnetic slider (25) slidably connected in the connection box (10); the left side of the second magnetic slider (25) is elastically connected to the left inner wall of the connection box (10) via a second spring (26); a second electromagnet (24) is embedded on the left inner wall of the connection box (10); the second electromagnet (24) is isotropically repelled from the adjacent surface of the second magnetic slider (25) when energized; a connecting rod (27) is fixedly connected to the right side of the second magnetic slider (25); strip openings are embedded on the left and right inner walls of the bottom space of the circular frame (7); sliding bars (11) that can slide left and right are arranged in the two strip openings; a second sponge layer is arranged at the lower end of the sliding bar (11) located on the left side; the two sliding bars (11) are fixedly connected via two connecting bars (39); the right side of the connecting rod (27) passes through the right inner wall of the connection box (10) and is fixedly connected to the left sliding bar (11).

4. A compression testing device for cement products according to claim 3, characterized in that: The dust collecting mechanism comprises a fixed plate (21) fixedly connected to the right side of the horizontal plate, a strip-shaped opening (17) is provided on the left inner wall of the circular frame (7), a connecting block (18) is fixedly connected to the left side of the lifting plate (12), the left side of the connecting block (18) passes through the strip-shaped opening (17) and is fixedly connected to a sliding sleeve (19), the left side of the sliding sleeve (19) is fixedly connected to a moving plate (8), an air bag (9) is provided between the moving plate (8) and the fixed plate (21), and the right side of the circular frame (7) is fixedly connected to A filter box (36) is connected, an adsorption chamber (38) is arranged in the right inner wall of the circular frame (7), a plurality of air suction ports are opened on the left inner wall of the adsorption chamber (38), the top space of the filter box (36) is connected to the adsorption chamber (38) via a connecting pipe (37), the bottom space of the filter box (36) is connected to the air bag (9) via an air inlet pipe (23), the bottom space of the air bag (9) is connected to the outside via an air outlet pipe (22), and both the air inlet pipe (23) and the air outlet pipe (22) are installed with a one-way valve.

5. A compression testing device for cement products according to claim 4, characterized in that: The lower end of the horizontal plate is fixedly connected to a vertical rod (5), the lower end of the vertical rod (5) passes through a sliding sleeve (19), and power connection blocks (20) are embedded on the inner walls of the left and right sides of the sliding sleeve (19), and the two power connection blocks (20) are made of iron. A plurality of annular conductive layers (6) are arranged at equal intervals on the upper side of the vertical rod (5), and the plurality of conductive layers (6) are made of copper. The two power connection blocks (20) cooperate with a first electromagnet (28).

6. A compression testing device for cement products according to claim 5, characterized in that: A rectangular cavity (14) is provided in the vertical rod (5), a magnetic grounding slider (16) that can slide up and down is provided in the rectangular cavity (14), a touch delay switch (15) is installed on the inner top of the rectangular cavity (14), and the touch delay switch (15) cooperates with the second electromagnet (24).

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