Cement setting strength detector

Abstract

The invention relates to the field of cement detection, and particularly discloses a cement setting strength detector which comprises a control box and a rack, the rack comprises a top plate, supporting columns, a base, a lower pressing plate and an upper pressing plate, and a fence mechanism used for preventing cement hard lumps from splashing when a cement test piece is broken is arranged between the top plate and the base; the enclosure mechanism comprises four supporting feet, four sleeves, four positioning rings, four baffles and a plurality of reset assemblies, the sleeves are arranged on the supporting feet, the reset assemblies are used for connecting the baffles and the upper pressing plate, the baffles are located on the upper side of the lower pressing plate when the upper pressing plate is not pressed downwards, cement test pieces are conveniently placed in the gaps between the baffles and the lower pressing plate, and along with pressing of the upper pressing plate, the cement test pieces are placed in the gaps. When the cement test piece is broken, the baffle moves downwards, so that the cement test piece is shielded by the baffle while the cement test piece is pressed by the upper pressing plate, the cement test piece can be prevented from splashing when being broken, automatic opening and closing of the baffle in the cement strength detection process are realized, the detection process is simplified, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of cement detection, in particular to a cement setting strength detector. Background Art

[0002] The strength of cement is an important indicator for evaluating cement quality and is the basis for classifying cement strength grades. The strength of cement refers to the ability of cement mortar hardened specimens to withstand external force damage, expressed in MPa (megapascals). It is one of the important physical and mechanical properties of cement.

[0003] The strength of cement is mainly tested by cement strength press. In order to prevent cement lumps from splashing when the cement specimen is ruptured under pressure, baffles need to be set on the periphery of the press during the cement strength test. When the cement specimen is placed in the press, the baffles need to be manually disassembled and assembled, which makes the test process cumbersome and affects the test efficiency. Summary of the invention

[0004] The object of the present invention is to provide a cement setting strength detector to overcome the above-mentioned defects in the prior art.

[0005] The cement solidification strength tester provided by the present invention includes a control box and a frame, the frame includes a top plate, a support, a base, a lower pressure plate and an upper pressure plate, a containment mechanism is arranged between the top plate and the base for preventing cement lumps from splashing when the cement specimen is broken, the containment mechanism includes four support legs, four sleeves, four positioning rings, four baffles and a plurality of reset components, the sleeves are arranged on the support legs, and the reset components are used to connect the baffle and the upper pressure plate so that the baffle slides vertically along the sleeves with the upper pressure plate.

[0006] Due to the adoption of the above-mentioned technical scheme, when the upper pressure plate is not pressed down, the baffle is located on the upper side of the lower pressure plate, and the interval between the baffle and the lower pressure plate is convenient for placing the cement specimen. As the upper pressure plate is pressed down, the baffle moves downward accordingly, so that the baffle covers the cement specimen while the upper pressure plate presses down the cement specimen, thereby preventing the cement specimen from splashing when it breaks, thereby realizing automatic opening and closing of the baffle during cement strength testing, simplifying the testing process and improving testing efficiency.

[0007] In the above technical solution, the sleeve is formed by two symmetrically arranged half-cylinders that are interlocked with each other. The half-cylinder is semi-cylindrical, and an interlocking groove is provided on the end face of the half-cylinder on one side parallel to its axial direction. An interlocking strip is fixed on the end face of the half-cylinder on the other side parallel to its axial direction. The cross-sections of the interlocking strip and the interlocking groove are both "T"-shaped and the interlocking strip can be embedded in the interlocking groove of the adjacent half-cylinder. The inner diameter of the sleeve is consistent with the diameter of the pillar, and the sleeve is sleeved on the outer periphery of the pillar.

[0008] Due to the adoption of the above technical solution, the sleeve is easy to be disassembled and assembled on the pillar, which in turn makes it easy to disassemble and assemble the enclosure mechanism on the press, thereby facilitating the inspection and maintenance of the enclosure mechanism and the press.

[0009] In the above technical solution, a guide seat is fixedly provided on the outer periphery of the semi-cylinder along its axial direction, and a guide groove penetrating the guide seat along the axial direction of the semi-cylinder is opened in the end face of the guide seat away from the axial direction of the semi-cylinder, and the guide groove is in a "T" shape. Guide strips are fixedly provided on both side edges of the baffle in the vertical direction, and the cross-section of the guide strip is consistent with the cross-section of the guide groove and the guide strip is slidably connected in the guide groove. The baffle realizes vertical sliding between two adjacent sleeves through the sliding connection between the guide strip and the guide groove.

[0010] Due to the adoption of the above technical solution, the sliding connection between the guide strip and the guide groove ensures the connection stability between the baffle and the sleeve, thereby ensuring the sliding stability of the baffle.

[0011] In the above technical solution, the reset assembly includes a clamping plate, a guide rod, a spring seat, a spring and a connecting plate. The clamping plate is in a "C" shape, and the clamping plate is clamped on the edge of the upper pressure plate. The guide rod is fixed to the upper end surface of the clamping plate, and the spring seat is slidably connected to the outer periphery of the guide rod. The two ends of the spring are respectively fixedly connected to the clamping plate and the spring seat. One end of the connecting plate is detachably connected to the spring seat, and the other end of the connecting plate is fixedly provided with a connecting block fixed to the upper edge of the baffle. The number of the reset assemblies is eight, and each of the baffles corresponds to two reset assemblies.

[0012] Due to the adoption of the above-mentioned technical solution, through the deformation capacity of the spring in the reset assembly, when the baffle descends to the bottom end of the sleeve, the upper pressure plate continues to press down the cement specimen, so that the baffle can maintain a state of covering the cement specimen, so that when testing cement specimens of different sizes, the baffle can ensure the protective effect.

[0013] In the above technical solution, a limiting cavity is provided in the upper end surface of the spring seat, and the limiting cavity is opened at one end close to the baffle plate. The end of the connecting plate away from the baffle plate can be embedded in the limiting cavity, and the guide rod passes through the connecting plate. The side wall of the limiting cavity is recessed in the direction away from the guide rod to form a limiting groove. The limiting plate is slidably connected in the limiting groove. The limiting plate is located on the upper side of the connecting plate. A groove is provided in the end surface of the limiting plate away from the baffle plate, and the guide rod passes through the groove.

[0014] The adoption of the above technical solution facilitates the disassembly and assembly between the connecting plate and the spring seat, thereby facilitating the connection of the baffle plate to the upper pressing plate through the reset assembly.

[0015] In the above technical solution, the support leg includes two support plates and two support rings, the support ring is arc-shaped, the support plate is semi-cylindrical, the support plate is fixed to the bottom surface of the support ring, and the support leg is sleeved on the outer periphery of the pillar.

[0016] Due to the adoption of the above technical solution, the support leg can be easily sleeved on the outer periphery of the pillar, so that the support leg can support the sleeve.

[0017] In the above technical solution, overlapping parts are fixedly provided at both ends of the support ring, and two adjacent support rings are overlapped by the adjacent overlapping parts to form a complete circular ring, and the abutting side of the two adjacent overlapping parts overlapping each other is a frosted surface.

[0018] Due to the adoption of the above technical solution, when the support ring is subjected to the pressure of the sleeve, the friction between the two overlapping parts is increased, thereby improving the connection strength between the two support rings.

[0019] In the above technical solution, the positioning ring is composed of two half rings, one ends of the two half rings are hinged, and the other ends of the two half rings are fixedly connected by bolts.

[0020] Due to the adoption of the above technical solution, it is convenient for the positioning ring to be sleeved on the pillar, and the positioning ring abuts against the upper end of the sleeve, thereby realizing the positioning of the sleeve.

[0021] The beneficial effects of the present invention are as follows: when the upper pressure plate is not pressed down, the baffle is located on the upper side of the lower pressure plate, and the interval between the baffle and the lower pressure plate is convenient for placing the cement test piece; as the upper pressure plate is pressed down, the baffle moves downward accordingly, so that when the upper pressure plate presses down the cement test piece, the baffle shields the cement test piece, thereby preventing the cement test piece from splashing when it breaks, thereby realizing automatic opening and closing of the baffle during cement strength testing, simplifying the testing process and improving testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the upper pressing plate and the lower pressing plate in the present invention; Figure 3 It is an exploded view of the enclosure mechanism in the present invention; Figure 4 It is a schematic diagram of the structure of the support leg in the present invention; Figure 5 It is a schematic structural diagram of the sleeve in the present invention; Figure 6 The present invention Figure 5 The enlarged schematic diagram at A in the middle; Figure 7 It is a structural schematic diagram of the baffle in the present invention; Figure 8 It is a structural schematic diagram of the positioning ring in the present invention; Fig. 9 It is a structural schematic diagram of the reset component in the present invention; Fig.10 It is an exploded view of the reset assembly in the present invention.

[0023] In the figure: 1. Control box; 2. Frame; 3. Support foot; 4. Baffle; 5. Positioning ring; 6. Reset assembly; 7. Sleeve; 20. Top plate; 21. Pillar; 22. Base; 23. Lower pressure plate; 24. Upper pressure plate; 30. Support ring; 31. Overlap; 32. Support plate; 41. Guide strip; 51. Half ring; 60. Snap-on plate; 61. Guide rod; 62. Limit plate; 63. Connecting plate; 64. Spring; 65. Spring seat; 66. Limit cavity; 67. Limit groove; 68. Groove; 69. Connecting block; 70. Fitting strip; 71. Half cylinder; 72. Guide seat; 73. Fitting groove; 74. Guide groove. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up, down and left, right are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors. The specific features of the cement solidification strength tester are described in detail below: An embodiment of the present invention: Reference Figure 1-Figure 10The present invention provides a cement solidification strength tester, including a control box 1 and a frame 2, the frame 2 includes a top plate 20, a support 21, a base 22, a lower pressure plate 23 and an upper pressure plate 24, the control box 1 is used to control the upper pressure plate 24 to move up and down, the cement specimen is placed on the lower pressure plate 23, the upper pressure plate 24 can press the cement specimen down under the control of the control box 1, and the pressure test result is displayed on the display screen on the control box 1, and a containment mechanism is arranged between the top plate 20 and the base 22 to prevent cement lumps from splashing when the cement specimen is broken, the containment mechanism includes four support legs 3, four sleeves 7, four positioning rings 5, four baffles 4 and a plurality of reset components 6, the sleeve 7 is arranged on the support leg 3, and the reset component 6 is used to connect the baffle 4 and the upper pressure plate 24, so that the baffle 4 slides vertically along the sleeve 7 with the upper pressure plate 24.

[0026] Reference Figure 2 , Figure 5 , Figure 6 The sleeve 7 is formed by two symmetrically arranged half-cylinders 71 that are interlocked with each other. The half-cylinder 71 is semi-cylindrical, and an interlocking groove 73 is provided on the end face of the half-cylinder 71 on one side parallel to its axial direction. An interlocking strip 70 is fixed on the end face of the half-cylinder 71 on the other side parallel to its axial direction. The cross-sections of the interlocking strip 70 and the interlocking groove 73 are both "T"-shaped, and the interlocking strip 70 can be embedded in the interlocking groove 73 of the adjacent half-cylinder 71. The inner diameter of the sleeve 7 is consistent with the diameter of the pillar 21, and the sleeve 7 is sleeved on the outer periphery of the pillar 21.

[0027] Reference Figure 2 , Figure 6 , Figure 7 A guide seat 72 arranged along the axial direction of the semi-cylinder 71 is fixedly provided on the outer periphery of the semi-cylinder 71, and a guide groove 74 is provided in the end surface of the guide seat 72 away from the axial direction of the semi-cylinder 71, which runs through the guide seat 72 along the axial direction of the semi-cylinder 71. The guide groove 74 is in a "T" shape. Guide strips 41 are fixedly provided on the two side edges of the baffle 4 in the vertical direction. The cross section of the guide strip 41 is consistent with the cross section of the guide groove 74 and the guide strip 41 is slidably connected in the guide groove 74. The baffle 4 realizes vertical sliding between two adjacent sleeves 7 through the sliding connection between the guide strip 41 and the guide groove 74. The baffle 4 is provided with evenly distributed through holes, so that the operator can observe the pressure condition of the cement specimen through the through holes.

[0028] Reference Figure 2 , Figure 3 , Fig. 9 , Fig.10The reset assembly 6 includes a clamping plate 60, a guide rod 61, a spring seat 65, a spring 64 and a connecting plate 63. The clamping plate 60 is in a "C" shape. The opening size of the clamping plate 60 is consistent with the thickness of the upper pressure plate 24. The clamping plate 60 is clamped on the edge of the upper pressure plate 24. The guide rod 61 is fixed to the upper end surface of the clamping plate 60. The spring seat 65 is slidably connected to the outer periphery of the guide rod 61. The two ends of the spring 64 are respectively fixedly connected to the clamping plate 60 and the spring seat 65. One end of the connecting plate 63 is detachably connected to the spring seat 65. The other end of the connecting plate 63 is fixedly provided with a connecting block 69 fixed to the upper edge of the baffle 4. The connecting plate 63 and the connecting block 69 are in an "L" shape. A rib is fixed between the connecting plate 63 and the connecting block 69 to increase the connection plate 63 and the connecting block 69, the number of reset assemblies 6 is eight, and each baffle 4 corresponds to two reset assemblies 6 respectively. A limit cavity 66 is provided in the upper end surface of the spring seat 65, and the limit cavity 66 is set close to the end opening of the baffle 4. The end of the connecting plate 63 away from the baffle 4 can be embedded in the limit cavity 66, and a through hole is provided in the end of the connecting plate 63 embedded in the limit cavity 66. The guide rod 61 passes through the through hole at the end of the connecting plate 63. The side wall of the limit cavity 66 is recessed in the direction away from the guide rod 61 to form a limit groove 67, and the limit plate 62 is slidably connected in the limit groove 67. The limit plate 62 is located on the upper side of the connecting plate 63, and a groove 68 is provided in the end surface of the limit plate 62 away from the baffle 4, and the guide rod 61 passes through the groove 68.

[0029] Reference Figure 2 , Figure 4 The support leg 3 includes two support plates 32 and two support rings 30. The support ring 30 is arc-shaped, the support plate 32 is semi-cylindrical, the support plate 32 is fixed to the bottom surface of the support ring 30, the support leg 3 is sleeved on the outer periphery of the pillar 21, and overlapping parts 31 are fixed at both ends of the support ring 30. The adjacent two support rings 30 are overlapped by the adjacent overlapping parts 31 to form a complete circular ring, and the side of the two adjacent overlapping parts 31 overlapping each other is a frosted surface.

[0030] Reference Figure 8 The positioning ring 5 is composed of two half rings 51, one end of the two half rings 51 is hinged, and the other end of the two half rings 51 is fixedly connected by bolts.

[0031] Before using the cement solidification strength detector provided by the present invention, the enclosure mechanism needs to be installed on the frame 2. The specific operation steps are as follows: First, the support leg 3 is put on the pillar 21, the lower end of the support plate 32 is in contact with the upper end surface of the base 22, the two overlapping parts 31 of the same support leg 3 are overlapped with each other, and the two support rings 30 form a complete circular ring and are put on the outer periphery of the pillar 21; Secondly, sleeve 7 is placed on pillar 21, firstly the inner side of one half-cylinder 71 is abutted against the outer periphery of pillar 21, the lower end of half-cylinder 71 is abutted against the upper end surface of support ring 30, then the fitting strip 70 on the other half-cylinder 71 is aligned with the fitting groove 73 on the half-cylinder 71 placed first, and then the sleeve 7 is slid downward, so that the two half-cylinders 71 are fixedly connected by the fitting strip 70 and the fitting groove 73, and then the two half-cylinders 71 form a cylinder and are sleeved on the outer periphery of pillar 21; Next, put the positioning ring 5 on the pillar 21 and abut against the upper end of the sleeve 7, and tighten the bolts at both ends of the half ring 51 to fix the positioning ring 5 on the outer periphery of the pillar 21, so as to confine the sleeve 7 between the positioning ring 5 and the support leg 3; Then, the spring seat 65 is pulled in a direction away from the clamping plate 60, so that the upper end of the guide rod 61 moves downward relative to the spring seat 65 to the lower side of the limiting cavity 66. At this time, the connecting plate 63 is clamped into the limiting cavity 66, and the spring seat 65 is released. Then, the spring seat 65 moves in a direction close to the clamping plate 60 under the pulling force of the spring 64, so that the upper end of the guide rod 61 passes through the through hole at the end of the connecting plate 63, and then the limiting plate 62 is embedded in the limiting groove 67 to limit the connecting plate 63 in the limiting cavity 66. Finally, the reset assembly 6 is connected to the upper pressing plate 24 and the baffle 4 is installed between the adjacent sleeves 7. The reset assembly 6 is connected to the upper pressing plate 24 by clamping the clamping plate 60 on the edge of the upper pressing plate 24. At the same time, the guide strip 41 on the baffle 4 is aligned with the guide groove 74 on the sleeve 7. The upper pressing plate 24 is started by the control box 1 to move downward, thereby driving the guide strip 41 on the baffle 4 to slide into the guide groove 74, thereby realizing the connection between the baffle 4 and the sleeve 7. At this time, the distance between the lower end surface of the upper pressing plate 24 and the lower edge of the baffle 4 is greater than the distance between the upper pressing plate 24 and the lower pressing plate 23 .

[0032] When testing the cement specimen, the cement specimen is placed in the middle position of the lower pressure plate 23. At this time, the control box 1 controls the upper pressure plate 24 to move downward, thereby driving the reset assembly 6 to move downward, and then the baffle 4 moves downward to cover the cement specimen. The upper pressure plate 24 continues to press downward to apply pressure to the cement specimen. If the lower end of the guide strip 41 of the baffle 4 abuts against the lower side wall of the guide groove 74 at this time, the baffle 4 stops moving downward, and the upper pressure plate 24 continues to move downward to squeeze the cement specimen. At this time, the spring seat 65 stops with the connecting plate 63, and the clamping plate 60 moves downward with the upper pressure plate 24, then the spring 64 is stretched, thereby ensuring that the baffle 4 can always keep covering the cement specimen during the squeezing of the cement specimen, thereby realizing the ability to cover the cement lumps splashed when the cement specimen is broken.

[0033] After the strength test of the cement specimen is completed, the control box 1 controls the upper pressure plate 24 to move upward and reset, thereby driving the baffle 4 to move upward until the lower end of the guide bar 41 is close to the upper end of the guide groove 74, and the upper pressure plate 24 stops moving. At this time, the tested cement specimen can be taken out from between the lower pressure plate 23 and the upper pressure plate 24.

[0034] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A cement setting strength tester, comprising a control box (1) and a frame (2), wherein the frame (2) comprises a top plate (20), a support (21), a base (22), a lower pressing plate (23) and an upper pressing plate (24), characterized in that: A containment mechanism is provided between the top plate (20) and the base (22) for preventing cement lumps from splashing when the cement specimen is broken. The containment mechanism comprises four support legs (3), four sleeves (7), four positioning rings (5), four baffles (4) and a plurality of reset assemblies (6). The sleeves (7) are provided on the support legs (3). The reset assemblies (6) are used to connect the baffles (4) and the upper pressing plate (24), so that the baffles (4) slide vertically along the sleeves (7) along with the upper pressing plate (24).

2. The cement setting strength detector according to claim 1, characterized in that: The sleeve (7) is formed by two symmetrically arranged half-cylinders (71) interlocking with each other. The half-cylinder (71) is semi-cylindrical. An interlocking groove (73) is provided on one end surface of the half-cylinder (71) parallel to its axial direction. An interlocking strip (70) is fixedly provided on the other end surface of the half-cylinder (71) parallel to its axial direction. The cross-sections of the interlocking strip (70) and the interlocking groove (73) are both T-shaped. The interlocking strip (70) can be inserted into the interlocking groove (73) of the adjacent half-cylinder (71). The inner diameter of the sleeve (7) is consistent with the diameter of the pillar (21). The sleeve (7) is sleeved on the outer circumference of the pillar (21).

3. The cement setting strength detector according to claim 2, characterized in that: A guide seat (72) is fixedly provided on the outer periphery of the semi-cylinder (71) and is arranged along the axial direction thereof. A guide groove (74) is provided in the end surface of the guide seat (72) away from the axial direction of the semi-cylinder (71) and passes through the guide seat (72) along the axial direction of the semi-cylinder (71). The guide groove (74) is in a "T" shape. Guide strips (41) are fixedly provided on both side edges of the baffle plate (4) in the vertical direction. The cross section of the guide strip (41) is consistent with the cross section of the guide groove (74) and the guide strip (41) is slidably connected in the guide groove (74). The baffle plate (4) is slidably connected between two adjacent sleeves (7) through the slidable connection between the guide strip (41) and the guide groove (74).

4. The cement setting strength detector according to claim 1, characterized in that: The reset assembly (6) comprises a clamping plate (60), a guide rod (61), a spring seat (65), a spring (64) and a connecting plate (63). The clamping plate (60) is in a "C" shape. The clamping plate (60) is clamped on the edge of the upper pressure plate (24). The guide rod (61) is fixed to the upper end surface of the clamping plate (60). The spring seat (65) is slidably connected to the outer periphery of the guide rod (61). Two ends of the spring (64) are respectively fixedly connected to the clamping plate (60) and the spring seat (65). One end of the connecting plate (63) is detachably connected to the spring seat (65). The other end of the connecting plate (63) is fixedly provided with a connecting block (69) fixed to the upper edge of the baffle (4). The number of the reset assemblies (6) is eight, and each baffle (4) corresponds to two reset assemblies (6).

5. The cement setting strength detector according to claim 4, characterized in that: A limiting cavity (66) is provided in the upper end surface of the spring seat (65), and the limiting cavity (66) is opened at one end close to the baffle (4). An end of the connecting plate (63) away from the baffle (4) can be embedded in the limiting cavity (66). The guide rod (61) passes through the connecting plate (63). The side wall of the limiting cavity (66) is recessed in a direction away from the guide rod (61) to form a limiting groove (67). The limiting groove (67) is slidably connected to the limiting plate (62). The limiting plate (62) is located on the upper side of the connecting plate (63). A groove (68) is provided in the end surface of the limiting plate (62) away from the baffle (4), and the guide rod (61) passes through the groove (68).

6. The cement setting strength detector according to claim 1, characterized in that: The support foot (3) comprises two support plates (32) and two support rings (30); the support ring (30) is arc-shaped; the support plate (32) is semi-cylindrical; the support plate (32) is fixed to the bottom surface of the support ring (30); and the support foot (3) is sleeved on the outer periphery of the support column (21).

7. The cement setting strength detector according to claim 6, characterized in that: Both ends of the support ring (30) are fixedly provided with overlapping portions (31), and two adjacent support rings (30) are overlapped by the adjacent overlapping portions (31) to form a complete circular ring, and the abutting surface of the two adjacent overlapping portions (31) is a frosted surface.

8. The cement setting strength detector according to claim 1, characterized in that: The positioning ring (5) is composed of two half rings (51), one end of the two half rings (51) is hinged, and the other end of the two half rings (51) is fixedly connected by bolts.

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