A positioning mechanism for strength testing of civil engineering materials

Abstract

This utility model relates to the field of civil engineering and discloses a positioning mechanism for testing the strength of civil engineering materials. It includes a base, four sets of fixing rods fixedly installed on the top of the base, a placement plate on the top of the base, and electric push rods fixedly installed at the bottom and top of the fixing rods. An electric push rod is fixedly installed on the top of the placement plate, with its telescopic end extending through to the bottom of the placement plate and fixedly mounted on a block. A pressure sensor is fixedly installed at the bottom of the block. A limiting component for limiting the material's position is provided on the top of the base. In this utility model, the limiting component uses two sets of limiting plates in conjunction with two sets of vertically arranged connecting rods. One set of limiting plates is fixed, while the other is movable. The position of the movable limiting plate can be adjusted by rotating the connecting rods, thereby adapting to the limiting requirements of materials of different sizes and improving the mechanism's adaptability to materials of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering, and in particular to a positioning mechanism for testing the strength of civil engineering materials. Background Technology

[0002] Civil engineering is a general term for the science and technology of constructing various land engineering facilities. It refers not only to the materials and equipment used and the technical activities such as surveying, design, construction, maintenance, and repair, but also to the objects of engineering construction, namely, various engineering facilities built on or under the ground, on land, that directly or indirectly serve human life, production, military, and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, offshore platforms, water supply and drainage, and protective engineering. Civil engineering refers to the various technical work and the completed engineering entities of buildings, structures, and related supporting facilities for the construction, reconstruction, or expansion of various projects, excluding building construction, including surveying, planning, design, construction, installation, and maintenance.

[0003] In the field of civil engineering, material strength testing is a key link in ensuring project quality, and the accuracy of the test results directly affects the safety of project design and construction.

[0004] When performing pressure testing on sheet materials, the material is prone to shaking during the application of pressure, which can cause deviations in the pressure sensor's detection data. Existing limiting components are difficult to adapt to sheet materials of different sizes and specifications. For materials with large size differences, different limiting components often need to be replaced. Moreover, when testing brittle materials, a large amount of dust is easily generated. This dust not only pollutes the testing environment but also affects the accuracy of the test data. Therefore, a positioning mechanism for testing the strength of civil engineering materials is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a positioning mechanism for testing the strength of civil engineering materials. It aims to improve the existing technology where the limiting components are difficult to adapt to plates of different sizes and specifications. For materials with large size differences, it is often necessary to replace different limiting components. Moreover, when testing brittle materials, a large amount of dust is easily generated. This dust not only pollutes the testing environment but also affects the accuracy of the test data.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A positioning mechanism for testing the strength of civil engineering materials includes a base, four sets of fixing rods fixedly installed on the top of the base, a placement plate provided on the top of the base, the bottom of the placement plate and the top of the fixing rods fixedly installed, an electric push rod fixedly installed on the top of the placement plate, the telescopic end of the electric push rod extending through to the bottom of the placement plate and fixedly installed with a block, a pressure sensor fixedly installed on the bottom of the block, a limiting component for limiting the material on the top of the base, and a cleaning component for cleaning dust on the top of the base.

[0008] As a further description of the above technical solution:

[0009] The limiting assembly includes two sets of limiting plates. The bottom of one set of limiting plates is fixedly installed on the top of the base, and the bottom of the other set of limiting plates contacts the top of the base. The top of the base is provided with two sets of connecting rods, which are arranged vertically. The right side of the surface of each connecting rod is rotatably installed on the left side of one set of limiting plates via a pivot pin.

[0010] As a further description of the above technical solution:

[0011] A rotating rod is rotatably mounted on the top of the base, a gear is fixedly mounted on the top of the rotating rod, and two sets of toothed plates are provided on the top of the base. The toothed plates mesh with the gears, and the outer side of the toothed plates and the inner side of the connecting rod are fixedly mounted.

[0012] As a further description of the above technical solution:

[0013] A motor is fixedly installed on the top of the base, a worm is fixedly installed on the output end of the motor, and a worm wheel is fixedly installed on the surface of the rotating rod, with the worm and the worm wheel meshing together.

[0014] As a further description of the above technical solution:

[0015] The base has sliding grooves on both the front and rear sides of the top, and a slider is fixedly installed at the bottom of one set of limiting plates. The slider and the sliding groove are slidably installed.

[0016] As a further description of the above technical solution:

[0017] The cleaning assembly includes a fixing block, with a fan fixedly installed on the left side of the fixing block and the right side of one of the limiting plates. The fan is connected to the left end of the fan via an air inlet pipe, and the bottom of the air inlet pipe is fixedly installed on the top of the fixing block.

[0018] As a further description of the above technical solution:

[0019] A collection bag is provided on the top of the fixing block, and the collection bag can be detachably installed via cable ties and the other end of the fan.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the limiting component adopts two sets of limiting plates and two sets of connecting rods arranged vertically. One set of limiting plates is fixed and the other set is movable. The position of the movable limiting plate can be adjusted by rotating the connecting rods, thereby adapting to the limiting requirements of different sized plates and improving the adaptability of the mechanism to different specifications of materials.

[0022] 2. The blower in this utility model can quickly suck in and expel dust through the air intake pipe, effectively reducing dust pollution in the test area and protecting the health of test equipment and operators. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the base of this utility model;

[0024] Figure 2 This is a schematic diagram of the limiting component of this utility model;

[0025] Figure 3 This is a schematic diagram of the top structure of the fixing block of this utility model;

[0026] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0027] Legend:

[0028] 1. Base; 2. Fixing rod; 3. Placement plate; 4. Electric push rod; 5. Block; 6. Pressure sensor; 7. Limiting assembly; 71. Limiting plate; 72. Connecting rod; 73. Rotating rod; 74. Gear; 75. Tooth plate; 76. Motor; 77. Worm gear; 78. Worm wheel; 8. Cleaning assembly; 81. Fixing block; 82. Fan; 83. Air inlet pipe; 84. Collection bag; 9. Slide groove; 10. Slider. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1-4This utility model provides an embodiment of a positioning mechanism for testing the strength of civil engineering materials, comprising a base 1, four sets of fixing rods 2 fixedly installed on the top of the base 1, a placement plate 3 set on the top of the base 1, the bottom of the placement plate 3 and the top of the fixing rods 2 fixedly installed, an electric push rod 4 fixedly installed on the top of the placement plate 3, the telescopic end of the electric push rod 4 extending through to the bottom of the placement plate 3 and fixedly installed with a block 5, a pressure sensor 6 fixedly installed at the bottom of the block 5, a limiting component 7 for limiting the plate 3 on the top of the base 1, and a cleaning component 8 for cleaning dust on the top of the base 1. By setting four sets of fixing rods 2 to stably support the placement plate 3, the stability of the electric push rod 4 and the pressure sensor 6 below during operation is ensured. The electric push rod 4 can drive the pressure sensor 6 to move up and down to achieve the strength test of the material. The limiting component 7 can limit the plate 3 to prevent the material from shifting during the test and affecting the test accuracy. The cleaning component 8 can clean the dust generated during the test in a timely manner, which is conducive to maintaining the cleanliness of the test environment and reducing the adverse effects of dust on the test equipment and operators.

[0031] Reference Figure 1-4The limiting assembly 7 includes two sets of limiting plates 71. The bottom of one set of limiting plates 71 is fixedly installed to the top of the base 1, while the bottom of the other set of limiting plates 71 contacts the top of the base 1. Two sets of connecting rods 72 are provided on the top of the base 1, arranged vertically. The right side of each connecting rod 72 is rotatably installed to the left side of one set of limiting plates 71 via a pivot pin. The limiting assembly 7 uses two sets of limiting plates 71 in conjunction with two sets of vertically arranged connecting rods 72, where one set of limiting plates 71 is fixed and the other set is movable. The rotation of the connecting rod 72 enables the position adjustment of the movable limiting plate 71, thereby adapting to the limiting requirements of plates of different sizes and improving the adaptability of the mechanism to materials of different specifications. A rotating rod 73 is rotatably mounted on the top of the base 1, and a gear 74 is fixedly mounted on the top of the rotating rod 73. Two sets of toothed plates 75 are provided on the top of the base 1, and the toothed plates 75 mesh with the gears 74. The outer side of the toothed plates 75 and the inner side of the connecting rod 72 are fixedly mounted. The rotating rod 73 drives the gear 74 to rotate, and the gear 74 meshes with the two sets of toothed plates 75. The two sets of toothed plates 75 can drive the connecting rod 72 to move synchronously, thereby realizing the smooth movement of the movable limit plate 71, ensuring the synchronicity and stability of the adjustment process of the limit plate 71, and improving the accuracy of the plate limit. A motor 76 is fixedly installed on the top of the base 1, and a worm 77 is fixedly installed on the output end of the motor 76. A worm wheel 78 is fixedly installed on the surface of the rotating rod 73. The worm 77 and the worm wheel 78 mesh. The motor 76 drives the worm 77 to rotate, and the worm 77 meshes with the worm wheel 78 to drive the rotating rod 73 to rotate. The worm gear 77 and worm wheel 78 transmission have a self-locking feature, which enables the limiting plate 71 to remain stably in the appropriate position after adjustment, avoiding the displacement of the limiting plate 71 due to external forces during the test. The front and rear sides of the top of the base 1 are provided with sliding grooves 9. A slider 10 is fixedly installed at the bottom of one set of limiting plates 71. The slider 10 and the sliding groove 9 are slidably installed. The cooperation between the slider 10 and the sliding groove 9 guides the movement of the movable limiting plate 71, ensuring the smoothness of the movement of the limiting plate 71 and preventing it from deviating.

[0032] Reference Figure 1-4 The cleaning component 8 includes a fixing block 81, which is fixedly installed on the left side and the right side of one of the limiting plates 71. A fan 82 is fixedly installed on the top of the fixing block 81. An air inlet pipe 83 is connected to the left end of the fan 82. The bottom of the air inlet pipe 83 is fixedly installed on the top of the fixing block 81. The fan 82 can quickly suck in and discharge dust through the air inlet pipe 83, effectively reducing dust pollution in the test area and protecting the health of the test equipment and operators. A collection bag 84 is provided on the top of the fixing block 81. The collection bag 84 is detachably installed on the other end of the fan 82 by a cable tie. The collection bag 84 is detachably connected to the fan 82 by a cable tie, which makes it easy to disassemble, replace and clean the collection bag 84 after it is full of dust.

[0033] Working principle: First, the material to be tested can be placed on the base 1. Then, the motor 76 can be started. The output end of the motor 76 drives the worm gear 77 to rotate. The rotation of the worm gear 77 drives the worm wheel 78 to rotate. The rotation of the worm wheel 78 drives the rotating rod 73 and the gear 74 to rotate. The rotation of the gear 74 drives the two sets of toothed plates 75 to move inward at the same time. The inward movement of the toothed plates 75 drives the left side of the connecting rod 72 to move inward. At this time, under the action of the connecting rod 72, one of the limiting plates 71 can be driven to move to the right. The movement of the limiting plate 71 to the right can press and limit the material on the base 1. Then, the fan 82 can be started. The fan 82 can transport the dust on the board through the air inlet pipe 83 into its interior. At this time, the fan 82 transports the dust into the collection bag 84. When the collection bag 84 is full of dust, the cable tie can be released from the limit of the fan 82. Then the collection bag 84 can be removed and the dust inside can be emptied. Then the electric push rod 4 can be activated. The telescopic end of the electric push rod 4 drives the block 5 to move to the bottom. The movement of the block 5 to the bottom drives the pressure sensor 6 to move to the bottom. The pressure sensor 6 can detect whether the board is qualified. After the board is tested, the above reverse steps can be repeated to remove the board for replacement testing.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning mechanism for strength testing of civil engineering materials, comprising a base (1), characterised in that: Four sets of fixing rods (2) are fixedly installed on the top of the base (1). A placement plate (3) is provided on the top of the base (1). The bottom of the placement plate (3) and the top of the fixing rods (2) are fixedly installed. An electric push rod (4) is fixedly installed on the top of the placement plate (3). The telescopic end of the electric push rod (4) extends through to the bottom of the placement plate (3) and a block (5) is fixedly installed. A pressure sensor (6) is fixedly installed on the bottom of the block (5). A limiting component (7) for limiting the plate is provided on the top of the base (1). A cleaning component (8) for cleaning dust is provided on the top of the base (1).

2. A geotechnical material strength test positioning mechanism according to claim 1, characterised in that: The limiting component (7) includes two sets of limiting plates (71), one set of limiting plates (71) is fixedly installed at the bottom and the top of the base (1), and the bottom of the other set of limiting plates (71) is in contact with the top of the base (1). The top of the base (1) is provided with two sets of connecting rods (72), which are arranged vertically. The right side of the surface of the connecting rods (72) is rotatably installed on the left side of one set of limiting plates (71) through a shaft pin.

3. A geotechnical material strength test positioning mechanism according to claim 2, characterised in that: A rotating rod (73) is rotatably mounted on the top of the base (1), and a gear (74) is fixedly mounted on the top of the rotating rod (73). Two sets of toothed plates (75) are provided on the top of the base (1). The toothed plates (75) and the gears (74) mesh with each other. The outer side of the toothed plates (75) and the inner side of the connecting rod (72) are fixedly mounted.

4. A geotechnical material strength test positioning mechanism according to claim 3, wherein: A motor (76) is fixedly installed on the top of the base (1), a worm (77) is fixedly installed on the output end of the motor (76), and a worm wheel (78) is fixedly installed on the surface of the rotating rod (73). The worm (77) and the worm wheel (78) mesh.

5. A geotechnical material strength test positioning mechanism according to claim 2, wherein: The base (1) has a sliding groove (9) on the front and rear sides of the top, and a slider (10) is fixedly installed on the bottom of a set of limiting plates (71). The slider (10) and the sliding groove (9) are slidably installed.

6. A geotechnical material strength test positioning mechanism according to claim 2, wherein: The cleaning component (8) includes a fixing block (81), which is fixedly installed on the left side and the right side of one of the limiting plates (71). A fan (82) is fixedly installed on the top of the fixing block (81), and an air inlet pipe (83) is connected to the left end of the fan (82). The bottom of the air inlet pipe (83) and the top of the fixing block (81) are fixedly installed.

7. A geotechnical material strength test positioning mechanism according to claim 6 wherein: A collection bag (84) is provided on the top of the fixing block (81), and the collection bag (84) is detachably installed by means of cable ties and the other end of the fan (82).

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