Pressure testing machine for cement detection

Abstract

The utility model discloses a pressure testing machine for cement detection, which comprises a bearing box, four sliding rods are fixedly mounted at the top of the bearing box, a top plate is fixedly mounted at the tops of the four sliding rods, a hydraulic cylinder is fixedly mounted at the bottom of the top plate, and a moving plate is fixedly mounted at the output end of the hydraulic cylinder. Four telescopic columns are fixedly mounted at the bottom of the moving plate; air is pumped into the communicating pipe through the air pump, airflow forms inside the filtering box and the bearing box, the airflow flows to the inner side of the upper supporting ring through the ventilation net, enters the ventilation holes through the lower supporting ring and the ventilation holes and finally enters the filtering box through the communicating holes, and finally dust is filtered through the dust filtering net. Dust overflow during operation is reduced, the operation environment is protected, dust dissipation is reduced, the influence of dust on sight can be reduced when a camera is installed at the bottom of the movable plate in a matched mode, auxiliary operation is facilitated, and the overall using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of cement detection pressure test equipment, and particularly relates to a pressure testing machine for cement detection. Background Technique

[0002] Cement pressure detection is mainly to determine the pressure conditions that cement bears under different conditions, so as to evaluate its performance and applicability. The purpose of the detection is to evaluate the strength of the cement: by applying pressure, detect the strength performance of the cement under the compressive state, and judge whether it meets the engineering requirements. Determine the durability of the cement: observe the performance changes of the cement during long-term compression, and evaluate its durability in actual use. Provide a basis for design: according to the pressure detection results, provide accurate material parameters for the design of engineering structures.

[0003] During the cement detection process, which includes pressure detection, a pressure testing machine is used to load the test piece, and the pressure is gradually increased until the test piece is damaged, so as to determine the compressive strength of the cement. Usually, a pressure testing machine is used in this process. However, after the existing pressure testing machine breaks the cement, certain debris will splash due to pressure collapse, posing a threat to the personal safety of operators, and the certain dust generated during the crushing will affect the observation and working environment. Based on this, a pressure testing machine for cement detection is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pressure testing machine for cement detection, so as to solve the problems put forward in the above background technique.

[0005] For the above purposes, the present utility model provides the following technical solutions: A pressure testing machine for cement detection, including a bearing box, on the top of the bearing box, four sliding rods are fixedly installed, on the top of the four sliding rods, a top plate is fixedly installed, at the bottom of the top plate, a hydraulic cylinder is fixedly installed, at the output end of the hydraulic cylinder, a moving plate is fixedly installed, at the bottom of the moving plate, four telescopic columns are fixedly installed, at the bottom ends of the four telescopic columns, a pressing plate is fixedly installed, on the top of the pressing plate, a pressure sensor is fixedly installed, inside the moving plate, three air-permeable nets are installed, at the bottom of the moving plate, an upper support ring is fixedly installed, on the inner side of the upper support ring, eight piezoelectric impact sensors II are fixedly installed, on the top of the bearing box, a lower support ring is fixedly installed, on the inner side of the lower support ring, eight piezoelectric impact sensors I are fixedly installed, on the top of the bearing box, air-permeable holes are opened, inside the bearing box, three cross-shaped supports are fixedly installed, on the top of each of the three cross-shaped supports, a truss support is fixedly installed, at the top of the inner cavity of the bearing box, an inclined support is fixedly installed, on both sides of the bearing box, filter boxes are fixedly installed, inside the filter boxes, a number of dust filters are movably installed, on the outer side of the filter box, a connecting pipe is communicated, at the other end of the connecting pipe, an air extraction pump is communicated, on the opposite sides of the bearing box and the filter box, communication holes are opened, on the front of the bearing box, a sealing door is movably installed through a hinge, on one side of the bearing box, a drain pipe is communicated, inside the drain pipe, a valve is movably installed.

[0006] Preferably, the outer side of the moving plate is slidably sleeved on the outer side of the sliding rod.

[0007] Preferably, the three air-permeable nets are all communicated with the inner side of the upper support ring, and the upper support ring is located outside the pressing plate and the telescopic columns.

[0008] Preferably, the eight piezoelectric impact sensors II and the piezoelectric impact sensors I are all evenly distributed in a circumferential manner on the inner sides of the upper support ring and the lower support ring, the specification size of the upper support ring is adapted to the specification size of the lower support ring, and the inner wall size of the lower support ring is consistent with the outer wall size of the upper support ring.

[0009] Preferably, the specification size of the air-permeable holes is adapted to the specification size of the pressing plate, the air-permeable holes are located on the opposite sides of the pressing plate and the lower support ring, both ends of the cross-shaped support are respectively fixedly installed on the top and bottom of the inner cavity of the bearing box, both ends of the truss support are respectively fixedly installed on the top and side wall of the inner cavity of the bearing box, and the bottom end of the inclined support is fixedly installed in a triangular shape on the bottom of the inner cavity of the bearing box.

[0010] Preferably, the air extraction pump is fixedly installed on the outer side of the bearing box, the communication holes are communicated with the inside of the bearing box and the filter box, the dust filters are located on the opposite sides of the communication holes and the connecting pipe, and a sealing box door is arranged on the front of the filter box.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When this structure is in use, the operator first places the concrete block to be detected and formed on the top of the bearing box and at the center of the lower support ring, and then starts the hydraulic cylinder to move downward, prompting the moving plate to move downward, driving the telescopic column and the pressing plate to move downward. Then, when the pressing plate contacts the concrete block, the telescopic column retracts, and the pressure sensor contacts the bottom of the moving plate. In addition, the lower support ring is sleeved inside the upper support ring. As the pressure increases, the concrete block begins to break and debris flies out. The debris flies and strikes the inside of the piezoelectric impact sensor I and the piezoelectric impact sensor II to detect the impact force of the collision and splashing. The sleeve connection between the lower support ring and the upper support ring protects the outside of the concrete, reducing the safety threat of the flying debris to the operators. The detection situation is recorded through the feedback data of the piezoelectric impact sensor I, the piezoelectric impact sensor II, and the pressure sensor. The overall operation effect is good and the detection is convenient. When the concrete block breaks, the smaller ones fall into the inside of the bearing box through the ventilation holes and can be discharged by flushing and opening the drain pipe. The larger ones are convenient to take out for cleaning, reducing the labor intensity of the operators;

[0012] The present utility model sucks air into the connecting pipe through an air extraction pump, and as the pressure tests, dust is generated when the concrete block breaks. An air flow is formed inside the filter box and the bearing box. The air flow flows to the inside of the upper support ring through the ventilation net, enters the ventilation holes through the lower support ring and the ventilation holes, and finally enters the filter box through the connecting holes. Finally, the dust is filtered by the dust filter screen, reducing the overflow of dust during operation, protecting the working environment, and reducing the escape of dust. It can cooperate with installing a camera at the bottom of the moving plate to reduce the influence of dust on the line of sight and facilitate auxiliary operation. The overall use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view three-dimensional external structure schematic diagram of the present utility model.

[0014] Figure 2 It is a rear view upward three-dimensional external structure schematic diagram of the present utility model.

[0015] Figure 3 It is a front view sectional structure schematic diagram of the present utility model.

[0016] Figure 4 It is a right view sectional structure schematic diagram of the present utility model.

[0017] In the figure: 1, bearing box; 2, sealing door; 3, filter box; 4, connecting pipe; 5, sliding rod; 6, top plate; 7, moving plate; 8, air permeable net; 9, lower support ring; 10, piezoelectric impact sensor I; 11, air vent; 12, hydraulic cylinder; 13, upper support ring; 14, piezoelectric impact sensor II; 15, pressing plate; 16, telescopic column; 17, air extraction pump; 18, drain pipe; 19, cross-shaped support; 20, truss support; 21, dust filter screen; 22, diagonal support; 23, connecting hole; 24, pressure sensor. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 4 , the present invention provides a technical solution: a pressure testing machine for cement detection, including a bearing box 1. Four sliding rods 5 are fixedly installed on the top of the bearing box 1. The top of the four sliding rods 5 is fixedly installed with a top plate 6. A hydraulic cylinder 12 is fixedly installed at the bottom of the top plate 6. The output end of the hydraulic cylinder 12 is fixedly installed with a moving plate 7. Four telescopic columns 16 are fixedly installed at the bottom of the moving plate 7. The bottom ends of the four telescopic columns 16 are fixedly installed with a pressing plate 15. A pressure sensor 24 is fixedly installed on the top of the pressing plate 15. Three air permeable nets 8 are installed inside the moving plate 7. The bottom of the moving plate 7 is fixedly installed with an upper support ring 13. Eight piezoelectric impact sensors II 14 are fixedly installed on the inner side of the upper support ring 13. The top of the bearing box 1 is fixedly installed with a lower support ring 9. Eight piezoelectric impact sensors I 10 are fixedly installed on the inner side of the lower support ring 9. An air vent 11 is opened on the top of the bearing box 1. Three cross-shaped supports 19 are fixedly installed inside the bearing box 1. Truss supports 20 are fixedly installed on the tops of the three cross-shaped supports 19. A diagonal support 22 is fixedly installed at the top of the inner cavity of the bearing box 1. Filter boxes 3 are fixedly installed on both sides of the bearing box 1. A number of dust filter screens 21 are movably installed inside the filter boxes 3. The outside of the filter box 3 is communicated with a connecting pipe 4. The other end of the connecting pipe 4 is communicated with an air extraction pump 17. Connecting holes 23 are opened on the opposite sides of the bearing box 1 and the filter box 3. A sealing door 2 is movably installed on the front of the bearing box 1 through a hinge. A drain pipe 18 is communicated with one side of the bearing box 1. A valve is movably installed inside the drain pipe 18.

[0020] Working principle of the above technical solution: During use, the operator first places the concrete block to be detected and formed on the top of the bearing box 1 and at the center of the lower support ring 9, and then starts the hydraulic cylinder 12 to move downward, causing the moving plate 7 to move downward, driving the telescopic column 16 and the pressing plate 15 to move downward. Then, when the pressing plate 15 contacts the concrete block, the telescopic column 16 retracts, and the pressure sensor 24 contacts the bottom of the moving plate 7. In addition, the lower support ring 9 is sleeved inside the upper support ring 13. As the pressure increases, the concrete block begins to break and debris flies out. The debris flies out and hits the inner sides of the piezoelectric impact sensor I 10 and the piezoelectric impact sensor II 14 to detect the intensity of the damage and splashing. The outer sides of the concrete are protected by the sleeving of the lower support ring 9 and the upper support ring 13, reducing the safety threat of the flying debris to the operators. The detection situation is recorded through the feedback data of the piezoelectric impact sensor I 10, the piezoelectric impact sensor II 14, and the pressure sensor 24. The overall operation effect is good and the detection is convenient. When the concrete block breaks, the smaller pieces fall into the inside of the bearing box 1 through the ventilation holes 11 and can be discharged by flushing and opening the drain pipe 18. The larger pieces are convenient to take out for cleaning, reducing the labor intensity of the operators.

[0021] In another embodiment, as Figures 1 - 4 shown, the outer side of the moving plate 7 is slidably sleeved on the outer side of the sliding rod 5.

[0022] The moving plate 7 is slidably limited on the outer side of the sliding rod 5, facilitating auxiliary movement and cooperating with torque stability.

[0023] In another embodiment, as Figures 1 - 4 shown, the three ventilation meshes 8 are all connected to the inside of the upper support ring 13, and the upper support ring 13 is located outside the pressing plate 15 and the telescopic column 16.

[0024] The ventilation meshes 8 direct the airflow into the inside of the upper support ring 13, facilitating the airflow to pass through the ventilation holes 11, forming a stable airflow direction, increasing the overall effect. The pressing plate 15 and the telescopic column 16 are at the center of the lower support ring 9 and the upper support ring 13, facilitating cooperation in operation, stabilizing the position, and facilitating cooperation in detection.

[0025] In another embodiment, as Figures 1 - 4 shown, the eight piezoelectric impact sensors II 14 and the piezoelectric impact sensor I 10 are evenly distributed in a circle on the inner sides of the upper support ring 13 and the lower support ring 9. The specification dimensions of the upper support ring 13 are adapted to those of the lower support ring 9, and the inner wall dimension of the lower support ring 9 is consistent with the outer wall dimension of the upper support ring 13.

[0026] The uniform distribution of the piezoelectric impact sensor II 14 and the piezoelectric impact sensor I 10 facilitates the detection of the impact of splashes in eight directions, and helps to judge the number of splash directions, which is convenient for assisting in judging which angle of the concrete block breaks first, increasing the overall detection effect. The upper support ring 13 can be sleeved inside the lower support ring 9, which is convenient for sleeving the range of the concrete block during detection, reducing the splash and overflow, and increasing the protection effect.

[0027] In another embodiment, as Figures 1 - 4 shown, the specification size of the air vent 11 is adapted to the specification size of the pressing plate 15. The air vent 11 is located on the opposite side of the pressing plate 15 and the lower support ring 9. The two ends of the cross-shaped support 19 are respectively fixedly installed at the top and bottom of the inner cavity of the bearing box 1, the two ends of the truss support 20 are respectively fixedly installed at the top and side wall of the inner cavity of the bearing box 1, and the bottom end of the diagonal support 22 is triangularly fixed and installed at the bottom of the inner cavity of the bearing box 1.

[0028] The opening position of the air vent 11 is convenient for providing a circumferential direction for the air flow, facilitating the air flow diversion, and also convenient for placing the concrete block. The cross-shaped support 19, the truss support 20 and the diagonal support 22 provide perfect support for the position of the concrete block, increasing the stability of the overall structure, increasing the structural strength, facilitating the support of the pressure support position, and maintaining the stability of the structure.

[0029] In another embodiment, as Figures 1 - 4 shown, the air extraction pump 17 is fixedly installed on the outside of the bearing box 1. The communication hole 23 communicates inside the bearing box 1 and the filter box 3. The dust filter net 21 is located on the opposite side of the communication hole 23 and the communication pipe 4. A sealed box door is provided on the front of the filter box 3.

[0030] In this solution, the air extraction pump 17 extracts air inside the communication pipe 4, and dust is generated due to the breakdown of the concrete block during the pressure test. The air flow forms an air flow inside the filter box 3 and the bearing box 1. The air flow flows to the inside of the upper support ring 13 through the air permeable net 8, enters the air vent 11 through the lower support ring 9 and the air vent 11, and finally enters the filter box 3 through the communication hole 23. Finally, the dust is filtered by the dust filter net 21, reducing the overflow of dust during operation, protecting the working environment, reducing the dust dispersion, and being able to cooperate with the installation of a camera at the bottom of the moving plate 7 to reduce the influence of dust on the line of sight, facilitating the auxiliary operation, and having a good overall use effect.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compression testing machine for cement detection, comprising a bearing box (1), characterized in that: Four sliding rods (5) are fixedly installed at the top of the bearing box (1). The top of the four sliding rods (5) is fixedly installed with a top plate (6). A hydraulic cylinder (12) is fixedly installed at the bottom of the top plate (6). The output end of the hydraulic cylinder (12) is fixedly installed with a moving plate (7). Four telescopic columns (16) are fixedly installed at the bottom of the moving plate (7). The bottom ends of the four telescopic columns (16) are fixedly installed with a pressing plate (15). A pressure sensor (24) is fixedly installed at the top of the pressing plate (15). Three air-permeable nets (8) are installed inside the moving plate (7). An upper support ring (13) is fixedly installed at the bottom of the moving plate (7). Eight piezoelectric impact sensors II (14) are fixedly installed on the inner side of the upper support ring (13). A lower support ring (9) is fixedly installed at the top of the bearing box (1). Eight piezoelectric impact sensors I (10) are fixedly installed on the inner side of the lower support ring (9). An air-permeable hole (11) is formed in the top of the bearing box (1). Three cross-shaped supports (19) are fixedly installed inside the bearing box (1). The top of each of the three cross-shaped supports (19) is fixedly installed with a truss support (20). An inclined support (22) is fixedly installed at the top of the inner cavity of the bearing box (1). Filter boxes (3) are fixedly installed on both sides of the bearing box (1). A number of dust filters (21) are movably installed inside the filter boxes (3). A connecting pipe (4) is communicated with the outside of the filter box (3). The other end of the connecting pipe (4) is communicated with an air extraction pump (17). Communication holes (23) are formed in the opposite sides of the bearing box (1) and the filter box (3). A sealing door (2) is movably installed on the front of the bearing box (1) through a hinge. A drain pipe (18) is communicated with one side of the bearing box (1). A valve is movably installed inside the drain pipe (18).

2. The pressure testing machine for cement detection according to claim 1, wherein: The outer side of the moving plate (7) is slidably sleeved on the outer side of the sliding rod (5).

3. A compression testing machine for cement testing according to claim 1, characterized in that: All three air-permeable nets (8) are communicated with the inner side of the upper support ring (13). The upper support ring (13) is located outside the pressing plate (15) and the telescopic column (16).

4. A pressure testing machine for cement detection according to claim 1, characterized in that: The eight piezoelectric impact sensors II (14) and the piezoelectric impact sensors I (10) are evenly distributed in a circular pattern on the inner sides of the upper support ring (13) and the lower support ring (9) respectively. The specification size of the upper support ring (13) is adapted to the specification size of the lower support ring (9). The inner wall size of the lower support ring (9) is consistent with the outer wall size of the upper support ring (13).

5. The pressure testing machine for cement detection according to claim 1, characterized in that: The specification size of the air-permeable hole (11) is adapted to the specification size of the pressing plate (15). The air-permeable hole (11) is located on the opposite side of the pressing plate (15) and the lower support ring (9). The two ends of the cross-shaped support (19) are respectively fixedly installed at the top and bottom of the inner cavity of the bearing box (1). The two ends of the truss support (20) are respectively fixedly installed at the top and side wall of the inner cavity of the bearing box (1). The bottom end of the inclined support (22) is fixedly installed in a triangular shape at the bottom of the inner cavity of the bearing box (1).

6. The pressure testing machine for cement detection according to claim 1, wherein: The air extraction pump (17) is fixedly installed on the outside of the carrying box (1). The communication hole (23) communicates with the inside of the carrying box (1) and the filter box (3). The dust filter screen (21) is located on the opposite side of the communication hole (23) and the communication pipe (4). A sealed box door is provided on the front surface of the filter box (3).

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