Rock strength detection device

Abstract

The utility model relates to the technical field of geological survey, in particular to a rock strength detection device which comprises a detection box, a functional frame is installed on the detection box, a movable plate, a top cover and a detection pressing plate are arranged on the detection box from top to bottom, a hydraulic cylinder is arranged on a transverse plate, and the output end of the hydraulic cylinder penetrates through the transverse plate and the movable plate to be fixedly connected with the top cover. The top of the detection pressing plate is connected with the bottom of the movable plate. The bottom of the detection pressing plate is connected with a pressure sensor, and the pressure sensor is electrically connected with the control panel. A detection table and a splash-proof cover are arranged in the detection box; the device can drive the splash-proof cover to move upwards to be buckled with the top cover, a closed detection space is formed, a better protection effect can be achieved, rock and the like are prevented from exploding and splashing in the detection process, and the detection safety is higher.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration technology, specifically a rock strength testing device. Background Technology

[0002] Rocks can be classified into hard rocks, relatively hard rocks, relatively soft rocks, soft rocks, and extremely soft rocks according to their hardness. When testing the compressive strength of rocks, strength testing equipment is required. Rock strength testing is mainly used in various geotechnical exploration fields. Workers use rock strength testing equipment to perform pressure tests on rock samples from the geotechnical exploration area to obtain the rock strength of that area. Through this method, the rock strength of the area can be tested and suggested values ​​for the physical and mechanical parameters of the rock can be proposed.

[0003] Existing rock strength testing devices can cause rock and soil materials to crack and splash during use due to the continuous increase in pressure. To address this issue, traditional testing institutions typically add splash guards. However, to facilitate sample handling, the guards need to have an opening on one side, resulting in incomplete splash protection. Another approach is to conduct testing inside the chamber, but this type of device makes sample handling more inconvenient. Utility Model Content

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

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rock strength testing device includes a testing box, with support columns at each of the four corners of the testing box. An L-shaped functional frame is installed on top of the testing box. The functional frame includes a horizontal plate and side plates perpendicular to the horizontal plate, with the side plates fixedly connected to one side of the testing box.

[0007] A movable plate, a top cover, and a detection pressure plate are arranged sequentially from top to bottom between the horizontal plate and the detection box, and a spring buffer column is arranged between the movable plate and the top cover;

[0008] A hydraulic cylinder is located at the center of the horizontal plate. The output end of the hydraulic cylinder passes through the horizontal plate and the movable plate and is fixedly connected to the top cover. The movable plate is slidably connected to the output end of the hydraulic cylinder. A connecting rod is fixedly connected to the top of the detection plate. The connecting rod passes through the top cover and is connected to the bottom of the movable plate. A pressure sensor is connected to the bottom of the detection plate. A control panel is located on the front of the detection box. The pressure sensor is electrically connected to the control panel.

[0009] The inner side of the testing box is slidably provided with a splash guard with open top and bottom, and the top of the splash guard is adapted to the top cover; the two sides of the splash guard are fixedly provided with second toothed plates, and the bottom of the top cover is fixedly provided with a first toothed plate corresponding to the second toothed plates. A transmission gear is provided between the first toothed plate and the second toothed plate and meshes with them. The transmission gear is connected to the side wall of the side plate of the functional frame through a rotating shaft.

[0010] The testing box is equipped with a testing platform inside. The testing platform is set at a height close to the upper edge of the testing box, and there is a certain distance between the two sides of the testing platform and the splash guard.

[0011] Furthermore, both sides of the top plate and the movable plate are provided with clearance grooves that are adapted to the second toothed plate.

[0012] With the above technical solution, when the splash guard moves upward, the second toothed plate can pass through the clearance groove, avoiding obstruction of the fastening between the top cover and the splash guard, making the design more reasonable.

[0013] Furthermore, the outer walls on both sides of the splash guard are vertically provided with anti-slip grooves, and the top of the inner side wall of the test box is provided with anti-slip protrusions that are compatible with the anti-slip grooves.

[0014] With the above technical solution, the anti-detachment protrusion is inserted into the anti-detachment sliding groove, so that the splash cover can only move up and down, which limits and constrains it, improves the stability of the splash cover when moving up and down, and will not detach from the test box, making the design more reasonable.

[0015] Furthermore, the length of the detection stage is no greater than the distance between the two first toothed plates.

[0016] By limiting the size of the testing platform, it is easier to insert the first toothed plate and also easier to sweep the tested soil and rock into the testing box through the space on both sides, making the design more reasonable.

[0017] Furthermore, the testing platform is detachably installed inside the testing box. The upper edge of the testing box has multiple grooves located along its length. The bottom of the testing platform has multiple protrusions that match the grooves. The testing platform and the testing box are detachably installed through the protrusions and grooves.

[0018] The above technical solution provides a specific method for detachably connecting the testing platform and the testing box. After the rock is tested, the testing platform can be directly disassembled for cleaning, making it convenient and portable.

[0019] Furthermore, the bottom of the testing box is sloped, and a discharge port is provided on the side wall of the testing box at a position corresponding to the lower side of the slope.

[0020] The above technical solution allows the sample to slide down the slope after entering the testing chamber and be discharged from the discharge port, making waste cleaning more convenient.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1) Compared with the existing technology, this rock strength testing device is equipped with a splash guard and a top cover. During testing, the hydraulic cylinder first moves the top cover downward, and the first toothed plate moves downward relative to the transmission gear, driving the transmission gear to rotate. This causes the second toothed plate to move upward, driving the splash guard upward and engaging with the top cover to form a closed testing space. This achieves better protection and prevents rocks from cracking and splashing during testing, making the testing safer. After the test is completed, the movable plate resets, and the splash guard and top cover also reset, exposing the testing platform. This facilitates cleaning of the testing platform and easy sample handling.

[0023] 2) Compared with the existing technology, this rock strength testing device is equipped with a testing box, which can store fractured rock and soil samples. The bottom of the box is designed with a slope, so that the sample can slide down the slope after entering the testing box and be discharged from the discharge port, making waste cleaning more convenient.

[0024] 3) By setting up the movable plate, the top cover, and the spring buffer column between the movable plate and the top cover, when rock testing is carried out, if the rock rebounds due to excessive strength, the spring buffer column can reduce the rebound force of the rock on the movable plate, which helps to reduce the damage caused by impact and vibration, protect the device and structure from damage, and extend the service life. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the sample loading state structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the detection state structure of this utility model.

[0027] Figure 3 This is a schematic diagram of the transmission gear structure of this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of the testing box of this utility model.

[0029] The attached diagram is labeled as follows: 1. Inspection box; 101. Discharge port; 102. Anti-detachment protrusion; 2. Support column; 3. Inspection table; 4. Functional frame; 5. Transmission gear; 6. Top cover; 7. Hydraulic cylinder; 8. Movable plate; 801. Clearance groove; 9. Splash shield; 901. Anti-detachment sliding groove; 10. Spring buffer column; 11. First toothed plate; 12. Inspection pressure plate; 13. Second toothed plate; 14. Control panel. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Example 1

[0033] like Figure 1 As shown, this utility model proposes a rock strength testing device, including a testing box 1, with support columns 2 at each of the four corners of the testing box 1. The device is characterized in that: an L-shaped functional frame 4 is installed on the top of the testing box 1, the functional frame 4 including a horizontal plate 41 and a side plate 42 arranged perpendicular to the horizontal plate, the side plate 42 being fixedly connected to one side of the testing box 1.

[0034] like Figure 2 , Figure 3 As shown, a movable plate 8, a top cover 6, and a detection pressure plate 12 are arranged sequentially from top to bottom between the horizontal plate 41 and the detection box 1. A spring buffer column 10 is arranged between the movable plate 8 and the top cover 6. A hydraulic cylinder 7 is arranged at the center of the horizontal plate 41. The output end of the hydraulic cylinder 7 passes through the horizontal plate 41, the movable plate 8, and is fixedly connected to the top cover 6. The movable plate 8 is slidably connected to the output end of the hydraulic cylinder 7. A connecting rod is fixedly connected to the top of the detection pressure plate 12. The connecting rod passes through the top cover 6 and is connected to the bottom of the movable plate 8. A pressure sensor is connected to the detection pressure plate 12. A control panel 14 is arranged on the front of the detection box. The pressure sensor is electrically connected to the control panel 14.

[0035] like Figure 2 , Figure 3 As shown, a splash guard 9 with open top and bottom is slidably disposed on the inner side of the testing box 1 near its inner edge. The top of the splash guard is adapted to the top cover 6. The design of the splash guard 9 fitting snugly against the testing box allows it to move freely up and down, preventing tilting or shaking, and providing stronger sealing during testing. Second toothed plates 13 are fixedly disposed on both sides of the splash guard 9, and a first toothed plate 11 corresponding to the second toothed plates 13 is fixedly disposed on the bottom of the top cover 6. A transmission gear 5 is disposed between the first toothed plate 11 and the second toothed plate 13, meshing with both. The transmission gear 5 is connected to the side wall of the side plate 42 of the functional frame through a rotating shaft. Figure 4 As shown.

[0036] like Figure 1 As shown, the testing box 1 is equipped with a testing platform 3. The height of the testing platform 3 is close to the upper edge of the testing box 1. There is a certain distance between the two sides of the testing platform 3 and the splash guard 9. The length of the testing platform 3 is not greater than the distance between the two first toothed plates 11. As a preferred embodiment, the width of the testing platform 3 is half the inner width of the splash guard 9, and the central axes of the testing platform 3, the splash guard 9 and the testing pressure plate 12 are all coincident. The design of half the inner width allows for a certain space between the two sides of the testing platform 3 and the splash guard 9, which facilitates the insertion of the first toothed plates 11 and makes it easier to sweep the tested soil and rock into the testing box 1, making the design more reasonable.

[0037] In this invention, the testing platform 3 can be fixed or detachable. In this embodiment, the testing platform is detachably installed inside the testing box 1. Specifically, the upper edge of the testing box 1 has multiple grooves, which are located along the length of the testing box 1. The bottom of the testing platform 3 has multiple protrusions that match the grooves. The testing platform and the testing box are detachably installed through the protrusions and grooves.

[0038] like Figure 3 As shown, both sides of the top cover 6 and the movable plate 8 are provided with clearance grooves 801 that are adapted to the second toothed plate 13. When the splash guard is driven to move upward, the second toothed plate 13 can pass through the clearance grooves 801, avoiding obstruction of the engagement between the top cover 6 and the splash guard 9, which is a more reasonable design.

[0039] like Figure 3 , Figure 4 As shown, anti-detachment grooves 901 are vertically formed on both outer walls of the splash shield 9, and anti-detachment protrusions 102 that match the anti-detachment grooves 901 are formed on the top of the inner wall of the test box 1. The anti-detachment protrusions 102 are engaged in the anti-detachment grooves 901, so that the splash shield 9 can only move up and down, which improves the stability of the splash shield when moving up and down, and prevents it from detaching from the test box 1, making the design more reasonable.

[0040] like Figure 4 As shown, the bottom of the testing chamber 1 is sloped, and a discharge port 101 is provided on the side wall of the testing chamber 1 at a position corresponding to the lower side of the slope. The slope design allows the sample to slide down the slope after entering the testing chamber 1 and be discharged through the discharge port 101, making waste cleaning more convenient.

[0041] The working principle of this utility model:

[0042] In use, the sample to be tested is placed on the testing platform 3, the power is turned on, the device is started, the hydraulic cylinder 7 works, driving the top cover 6 to move down. The top cover 6 moves down, driving the first toothed plate 11 to move down relative to the transmission gear 5, driving the transmission gear 5 to rotate, thereby causing the second toothed plate 13 to move up, driving the splash guard 9 to move up and engage with the top cover 6, forming a closed testing space. Then the hydraulic cylinder 7 continues to press down, driving the movable plate 8 to move down. At this time, the spring buffer column 10 is compressed, and the testing pressure plate 12 gradually presses down on the sample to be tested. The pressure sensor set at the bottom of the testing pressure plate 12 can transmit the signal to the control panel 14, and the magnitude of the testing pressure is displayed on the control panel 14 to complete the test. After the test is completed, the hydraulic cylinder 7 works, driving the movable plate 8 to reset, so that the splash guard 9 and the top cover 6 are reset, exposing the testing platform 3. The staff can sweep the broken rock and soil on the testing platform 3 into the testing box 1. After the sample enters the testing box 1, it can slide down the slope and be discharged from the discharge port 101.

[0043] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A rock strength testing device, comprising a testing box, wherein each of the four corners of the testing box is provided with a support pillar, characterized in that: An L-shaped functional frame is installed on top of the testing box. The functional frame includes a horizontal plate and a side plate arranged perpendicular to the horizontal plate. The side plate is fixedly connected to one side of the testing box. A movable plate, a top cover, and a detection pressure plate are arranged sequentially from top to bottom between the horizontal plate and the detection box, and a spring buffer column is arranged between the movable plate and the top cover; A hydraulic cylinder is located at the center of the horizontal plate. The output end of the hydraulic cylinder passes through the horizontal plate and the movable plate and is fixedly connected to the top cover. The movable plate is slidably connected to the output end of the hydraulic cylinder. A connecting rod is fixedly connected to the top of the detection plate. The connecting rod passes through the top cover and is connected to the bottom of the movable plate. A pressure sensor is connected to the bottom of the detection plate. A control panel is located on the front of the detection box. The pressure sensor is electrically connected to the control panel. The inner side of the testing box is slidably provided with a splash guard with open top and bottom, and the top of the splash guard is adapted to the top cover; the two sides of the splash guard are fixedly provided with second toothed plates, and the bottom of the top cover is fixedly provided with a first toothed plate corresponding to the second toothed plates. A transmission gear is provided between the first toothed plate and the second toothed plate and meshes with them. The transmission gear is connected to the side wall of the side plate of the functional frame through a rotating shaft. The testing box is equipped with a testing platform inside. The testing platform is set at a height close to the upper edge of the testing box, and there are gaps between the testing platform and the splash guard on both sides.

2. The rock strength testing device according to claim 1, characterized in that: Both sides of the top cover and the movable plate are provided with clearance grooves that are adapted to the second toothed plate.

3. The rock strength testing device according to claim 1, characterized in that: The outer walls on both sides of the splash guard are vertically provided with anti-slip grooves, and the top of the inner side wall of the test box is provided with anti-slip protrusions that are compatible with the anti-slip grooves.

4. The rock strength testing device according to claim 1, characterized in that: The length of the testing station is no greater than the distance between the two first toothed plates.

5. The rock strength testing device according to claim 1, characterized in that: The testing platform is detachably installed inside the testing box. The upper edge of the testing box has multiple grooves, which are located along the length of the testing box. The bottom of the testing platform has multiple protrusions that match the grooves. The testing platform and the testing box are detachably installed through the protrusions and grooves.

6. The rock strength testing device according to claim 1, characterized in that: The bottom of the testing box is sloped, and a discharge port is provided on the side wall of the testing box at a position corresponding to the lower side of the slope.

Images