Foamed light soil strength testing device

Abstract

The utility model discloses a foam light soil strength testing device, which comprises a box body, a movable plate and an objective table, the middle part of the upper surface of the box body is fixedly connected with an abutting oil cylinder, a telescopic rod of the abutting oil cylinder is fixedly connected with a pressure applying table, the upper surface of the box body is fixedly connected with a motor I through a protective shell, and sliding chutes I are symmetrically formed in the side surfaces in the box body; a first sliding block is fixedly connected to the position, opposite to the first sliding groove, of the side face of the moving plate, a first groove is formed in the side, away from the first sliding block, of the moving plate, a second screw rod is movably connected to the first groove through a bearing, and the first moving block is slidably connected into the first groove through the second screw rod in threaded connection. The objective table is fixedly connected to the bottom of the box body, a third groove is formed in the upper surface of the objective table, and a second sliding groove is formed in the lower end of the side face of the third groove. According to the foam light soil strength testing device, foam light soil to be tested can be conveniently fixed, and the accuracy of a test result is ensured.

Description

Technical Field

[0001] This utility model relates to the field of strength testing equipment technology, specifically a foamed lightweight soil strength testing device. Background Technology

[0002] Foamed lightweight soil is a new type of lightweight material containing numerous closed pores. It is produced by mechanically foaming a foaming agent using a foaming machine, uniformly mixing the foam with cement slurry, and then pumping it through the foaming machine's pumping system for on-site casting or molding. After natural curing, it is widely used in civil engineering fields such as railways, highways, underground projects, and municipal works. However, the compressive strength requirements of foamed lightweight soil vary depending on the application environment. Therefore, after the foamed lightweight soil has cured, its compressive strength needs to be tested. However, common compressive strength testing devices lack a fixing device to secure the foamed lightweight soil. During the pressure application process, the foamed lightweight soil tends to tilt to one side, resulting in poor stability during testing and increasing the inaccuracy of the test results.

[0003] Therefore, we have made improvements to this and proposed a foamed lightweight soil strength testing device. Utility Model Content

[0004] The purpose of this invention is to provide a foamed lightweight soil strength testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a foamed lightweight soil strength testing device, comprising a box, a movable plate, and a platform. A pressure cylinder is fixedly connected to the middle of the upper surface of the box, and the telescopic rod of the pressure cylinder is fixedly connected to the pressure platform. A motor is fixedly connected to the upper surface of the box through a protective shell. A sliding groove is symmetrically opened on the side of the box, and a lead screw is movably connected to the sliding groove through a bearing. The upper end of the lead screw is connected to the motor through a coupling. A slider is fixedly connected to the side of the movable plate relative to the sliding groove. A groove is opened on the side of the movable plate away from the slider. A second lead screw is movably connected to the platform through a bearing. A groove is formed, and a movable block is slidably connected to the groove through a screw rod 2. A groove 2 is formed at the upper end of the movable block 1, and the lower end of the rotating plate is movably connected to the groove 2 through a rotating shaft. A fixing plate 1 is screwed to the end of the screw rod 2 away from the movable block 1. The platform is fixedly connected to the bottom of the box. A groove 3 is formed on the upper surface of the platform, and a sliding groove 2 is formed at the lower end of the side of the groove 3. A clamping block 1 is slidably connected to the groove 3 through a fixed spring. A sliding plate is fixedly connected to the upper end of the clamping block 1. A sliding groove 3 is formed at the end of the sliding plate away from the clamping block 1. A limiting plate is slidably connected to the sliding groove 3. A push block is fixedly connected to the upper surface of the sliding plate.

[0006] Preferably, three sets of sliding grooves are opened parallel and equally spaced on opposite sides of the box body, and the horizontal cross-section of the sliding groove is an isosceles trapezoidal structure, while the length of the sliding groove is equal to the height of the inner side of the box body.

[0007] Preferably, there are two sets of movable plates. One set of movable plates is movably connected to the lead screw two via bearings, and the other set of movable plates is fixedly connected to the guide rod. The guide rod has a cylindrical structure, and both the lead screw two and the guide rod are connected to the groove one opened in the movable plate. At the same time, the movable plate and the groove one are combined together to form a [shaped structure].

[0008] Preferably, the slider one fixedly connected to the movable plate has an isosceles trapezoidal structure, the size of the slider one and the groove one are matched, and the movable plate and the slider one are combined to form an E-shaped structure. At the same time, the two sets of movable plates are respectively fixedly connected to the two ends of the fixed plate two, the fixed plate two has a rectangular structure, and the movable plate and the fixed plate two are combined to form a U-shaped structure.

[0009] Preferably, the first fixing plate has a rectangular structure, with a screw groove at one end and a sliding groove at the other end. The first fixing plate is screwed to the second screw rod through the screw groove, and the first fixing plate is slidably connected to the guide rod through the sliding groove. The first fixing plate, the second fixing plate, and the movable plate are combined to form an open-shaped structure.

[0010] Preferably, both the first and second movable blocks are square in shape. The upper end of both the first and second movable blocks is provided with a groove, and the side of the groove of the second movable block is provided with an opening. The positioning block is slidably connected in the opening by a fixed spring. At the same time, the positioning block is T-shaped, and the end of the positioning block near the groove is an isosceles trapezoid.

[0011] Preferably, the platform and the three grooves are combined to form a U-shaped structure, the clamping blocks connected symmetrically on both sides of the three grooves are all T-shaped, and the cross-section formed by the clamping blocks and the slide plate is L-shaped. At the same time, the limiting block connected to the slide plate is I-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This foamed lightweight soil strength testing device, through the cooperation of the platform, groove three, clamping block one, sliding plate and push block, enables the platform to initially position and fix the foamed lightweight soil to be tested. Moreover, the cooperation of clamping block one and spring can assist in fixing. At the same time, through the cooperation of motor one, lead screw one, slider one and moving plate, the positions of fixed plate one and rotating plate can be easily adjusted, thereby improving the fixing effect on foamed lightweight soil of different heights. Furthermore, through the cooperation of moving block one, moving block two, fixed plate one, lead screw two, rotating plate and guide rod, fixed plate one and rotating plate can move relative to each other, thereby completing the fixing, enhancing the stability of foamed lightweight soil during the test, and ensuring the accuracy of the experimental results. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 The structure of this utility model Figure 1 Enlarged view of point A;

[0016] Figure 4 The structure of this utility model Figure 2 Enlarged diagram of point B.

[0017] In the diagram: 1. Box body; 2. Lead screw 1; 3. Moving block 1; 4. Slider 1; 5. Moving plate; 6. Rotating plate; 7. Pressure table; 8. Motor 1; 9. Pressing cylinder; 10. Limiting plate; 11. Push block; 12. Slide plate; 13. Platform; 14. Fixed plate 1; 15. Clamping block 1; 16. Guide rod; 17. Positioning block; 18. Moving block 2. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1—4. This utility model provides a technical solution: a foamed lightweight soil strength testing device, including a box 1, a movable plate 5, and a platform 13. A pressure cylinder 9 is fixedly connected to the middle of the upper surface of the box 1. The telescopic rod of the pressure cylinder 9 is fixedly connected to a pressure platform 7. A motor 8 is fixedly connected to the upper surface of the box 1 through a protective shell. Three sets of sliding grooves are opened parallel and equally spaced on opposite sides of the box 1. The horizontal cross-section of the sliding grooves is an isosceles trapezoidal structure, and the length of the sliding grooves is equal to the height of the inner side of the box 1. Meanwhile, a lead screw 2 is movably connected to the sliding grooves through bearings. The upper end of the lead screw 2 is connected to the motor 8 through a coupling. A slider 4 is fixedly connected to the side of the movable plate 5 at a position opposite to the sliding grooves. The slider 4 fixedly connected to the movable plate 5 is at an isosceles trapezoidal structure. The structure is trapezoidal, with slider 4 and groove 1 having matching dimensions. The moving plate 5 and slider 4 are combined to form an E-shaped structure. Two sets of moving plates 5 are fixedly connected to both ends of a fixed plate 2, which is rectangular. The moving plates 5 and fixed plate 2 together form a U-shaped structure. A groove 1 is formed on the side of the moving plate 5 away from slider 4. There are two sets of moving plates 5: one set is movably connected to lead screw 2 via bearings, and the other set is fixedly connected to guide rod 16, which is cylindrical. Both lead screw 2 and guide rod 16 are correspondingly connected within the groove 1 of the moving plate 5. The moving plate 5 and groove 1 together form a [-shaped structure. The moving block 3 is slidably connected within the groove 1 via a screwed lead screw 2.] Both movable block 1 (3) and movable block 2 (18) are square in shape. Both movable block 1 (3) and movable block 2 (18) have a groove 2 at their upper ends, and the side of the groove 2 of movable block 2 (18) has an opening. Positioning block 17 is slidably connected to the opening via a fixed spring. Positioning block 17 has a T-shaped structure, with the end of positioning block 17 near the groove 2 forming an isosceles trapezoid. Meanwhile, the lower end of rotating plate 6 is movably connected to the groove 2 via a rotating shaft. Fixed plate 14 has a rectangular structure, with a threaded groove at one end and a sliding groove at the other end. Fixed plate 14 is threaded to screw rod 2 via the threaded groove, and fixed plate 14 is slidably connected to guide rod 16 via the sliding groove. Fixed plate 14, fixed plate 2, and movable plate 5 are combined in… Together they form an open-shaped structure; the platform 13 is fixedly connected to the bottom of the box 1, and the upper surface of the platform 13 has a groove 3. The platform 13 and the groove 3 are combined to form a concave-shaped structure. The clamping blocks 15 connected symmetrically on both sides of the groove 3 are all T-shaped, and the cross section formed by the clamping blocks 15 and the slide plate 12 is L-shaped. At the same time, the limiting block connected to the slide plate 12 is I-shaped. The lower end of the side of the groove 3 has a sliding groove 2. The clamping blocks 15 are slidably connected in the groove 3 by a fixed spring. At the same time, the upper end of the clamping blocks 15 is fixedly connected to the slide plate 12. The end of the slide plate 12 away from the clamping blocks 15 has a sliding groove 3. The limiting plate 10 is slidably connected in the sliding groove 3. The upper surface of the slide plate 12 is fixedly connected to the push block 11.

[0020] like Figure 1 As shown, the pressure table 7 is externally connected to a pressure sensor, which is electrically connected to a display. By cooperating with the pressure sensor and the display, the maximum pressure value that the lightweight foam soil to be tested will experience when it breaks can be obtained. At the same time, a friction layer is fixedly connected to the surfaces of the rotating plate 6 and the fixed plate 14 to enhance the fixing effect.

[0021] like Figure 2 As shown, the fixing directions of the rotating plate 6 and the fixed plate 14 are perpendicular to the fixing direction of the clamping block 15, which can enhance the fixing effect of the device on the foam lightweight soil. Moreover, through the cooperation of the fixed plate 2, the screw 2, the guide rod 16 and the fixed plate 14, the stability between the two sets of moving plates 5 can be effectively enhanced, ensuring that the two sets of moving plates 5 can move synchronously.

[0022] Working principle: When using this foamed lightweight soil strength testing device, firstly, the lower end of the foamed lightweight soil to be tested is embedded in the groove three of the platform 13. Then, the limiting plate 10 is moved by the pull block two. After the lower end of the limiting plate 10 moves into the sliding groove three, the clamping block one 15 is reset under the action of the spring, thereby clamping the lower end of the foamed lightweight soil. The clamping block one 15 drives the fixedly connected sliding plate 12 to move synchronously. Then, the rotating plate 6 is rotated so that the upper end of the rotating plate 6 is embedded in the groove two of the moving block two 18, and the positioning block 17 is embedded in the positioning groove of the rotating plate 6 under the action of the spring. Then, the switch of the motor one 8 is turned on, and the motor one 8... The coupling drives the lead screw 2 to rotate, and the rotating lead screw 2 pushes the screwed slider 4 to move. The slider 4 drives the fixedly connected moving plate 5 to move synchronously. After the fixed plate 14 and the rotating plate 6 move to a suitable height, the handwheel 2 rotates the lead screw 2, which pushes the fixed plate 14 and the rotating plate 6 to move, thereby fixing the foamed lightweight soil and preventing it from tilting during the test. Then, the switch of the pressure cylinder 9 is activated. The pressure cylinder 9 pushes the pressure platform 7 down through the telescopic rod, and then the pressure platform 7 contacts the upper surface of the foamed lightweight soil and gradually increases the pressure. This is the whole process of the foamed lightweight soil strength testing device.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foamed lightweight soil strength testing device, comprising a housing (1), a movable plate (5), and a platform (13), characterized in that: A pressure cylinder (9) is fixedly connected to the middle of the upper surface of the housing (1). The telescopic rod of the pressure cylinder (9) is fixedly connected to the pressure table (7). The upper surface of the housing (1) is fixedly connected to the motor (8) through a protective shell. A sliding groove is symmetrically opened on the side of the housing (1). At the same time, the lead screw (2) is movably connected to the sliding groove through a bearing. The upper end of the lead screw (2) is connected to the motor (8) through a coupling. The sliding plate (5) is fixedly connected to the slider (4) at the position opposite to the sliding groove. A groove is opened on the side of the moving plate (5) away from the slider (4). The lead screw (2) is movably connected to the groove through a bearing. The moving block (3) is slidably connected to the groove through the screwed lead screw (2). A groove 2 is opened at the upper end of the first (3), and the lower end of the rotating plate (6) is movably connected to the groove 2 through a rotating shaft. The end of the screw rod away from the first (3) is screwed to the fixing plate 1 (14). The platform (13) is fixedly connected to the bottom of the box (1). A groove 3 is opened on the upper surface of the platform (13), and a sliding groove 2 is opened at the lower end of the side of the groove 3. The clamping block 1 (15) is slidably connected to the groove 3 through a fixedly connected spring. At the same time, the upper end of the clamping block 1 (15) is fixedly connected to the slide plate (12). The end of the slide plate (12) away from the clamping block 1 (15) is opened to the sliding groove 3. The limiting plate (10) is slidably connected to the sliding groove 3. The upper surface of the slide plate (12) is fixedly connected to the push block (11).

2. The foamed lightweight soil strength testing device according to claim 1, characterized in that: Three sets of sliding grooves are opened parallel and equally spaced on opposite sides of the box (1), and the horizontal cross section of the sliding groove is an isosceles trapezoidal structure. At the same time, the length of the sliding groove is equal to the height of the inner side of the box (1).

3. The foamed lightweight soil strength testing device according to claim 1, characterized in that: The movable plate (5) consists of two sets. One set of movable plates (5) is movably connected to the second lead screw through a bearing, and the other set of movable plates (5) is fixedly connected to the guide rod (16). The guide rod (16) has a cylindrical structure, and the second lead screw and the guide rod (16) are both connected to the groove one opened in the movable plate (5). At the same time, the movable plate (5) and the groove one are combined together to form a [shaped structure].

4. The foamed lightweight soil strength testing device according to claim 1, characterized in that: The slider 1 (4) fixedly connected to the movable plate (5) has an isosceles trapezoidal structure. The slider 1 (4) and the groove 1 are matched in size. The movable plate (5) and the slider 1 (4) are combined to form an E-shaped structure. At the same time, the two sets of movable plates (5) are fixedly connected to the two ends of the fixed plate 2. The fixed plate 2 has a rectangular structure. The movable plate (5) and the fixed plate 2 are combined to form a U-shaped structure.

5. The foamed lightweight soil strength testing device according to claim 1, characterized in that: The first fixing plate (14) has a rectangular structure. One end of the first fixing plate (14) has a screw groove, and the other end of the first fixing plate (14) has a sliding groove. The first fixing plate (14) is screwed to the second screw rod through the screw groove. The first fixing plate (14) is slidably connected to the guide rod (16) through the sliding groove. At the same time, the first fixing plate (14), the second fixing plate, and the moving plate (5) are combined together to form an open-shaped structure.

6. The foamed lightweight soil strength testing device according to claim 1, characterized in that: The moving block 1 (3) and moving block 2 (18) are both square in shape. The upper end of both moving block 1 (3) and moving block 2 (18) is provided with groove 2. The side of the groove 2 of moving block 2 (18) is provided with an opening. The positioning block (17) is slidably connected in the opening by a fixed spring. At the same time, the positioning block (17) is T-shaped. The end of the positioning block (17) near groove 2 is an isosceles trapezoidal structure.

7. The foamed lightweight soil strength testing device according to claim 1, characterized in that: The platform (13) and the groove three are combined to form a U-shaped structure. The clamping blocks (15) connected symmetrically on both sides of the groove three are T-shaped. The cross section formed by the clamping blocks (15) and the slide plate (12) is L-shaped. At the same time, the limiting block connected to the slide plate (12) is I-shaped.

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