Portable counter-force providing device for field rock mass test

Abstract

The utility model relates to the field of rock mass tests, and discloses a portable counter-force providing device for on-site rock mass tests, which comprises two cross beams which are vertically arranged at an interval, the two cross beams are distributed in a crisscross manner, two supporting components are mounted outside the cross beams, fixing components are mounted outside the supporting components, and the fixing components are fixed on the cross beams. A jack abuts against the bottom of the cross beam on the lower side, a base plate abuts against the output end of the jack, a test block abuts against the bottom of the base plate, the supporting assembly comprises a half-moon plate, the bottom of the half-moon plate is arranged at the top of the cross beam, a pull rod is slidably connected into the half-moon plate, and a nut is in threaded connection with the upper side of the pull rod. The anchor rod is fixed on the ground, the connecting block is installed on the top of the anchor rod in cooperation with the fixing pin, the pull rod is made to be matched with the nut, and the half-moon plate is additionally arranged on the cross beam, so that rapid installation is achieved, the jack is supported, and the jack can work normally, is overall portable, is not affected by the site and is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of rock mass testing, and in particular to a portable on-site rock mass testing reaction force providing device. Background Technology

[0002] Rock mass testing is a method of evaluating the mechanical properties and stability of rock masses through laboratory or field testing. Common tests include uniaxial compression tests, triaxial shear tests, and core drilling. These tests are used to determine the physical and mechanical properties of rocks, such as compressive strength, shear strength, and elastic modulus. These data are crucial for fields such as geotechnical engineering, mining, and tunnel construction, helping engineers assess the stability and bearing capacity of rock masses, thereby guiding design and construction and ensuring project safety. Rock mass testing is one of the fundamental tasks in geological engineering.

[0003] A reaction force supply device is a device used to generate and control reaction forces in experiments. It is widely used in mechanical experiments, structural testing and other fields. Its main function is to provide a reaction force opposite to the force applied to the specimen to ensure the balance of the test system. Common reaction force devices include hydraulic reaction tables and fixed reaction frames in tensile and compressive testing machines. These devices can adjust the magnitude and direction of the reaction force as needed to provide a stable testing environment for various mechanical experiments. The reaction force supply device is crucial to ensuring the accuracy and reliability of experimental data.

[0004] In testing the compressive deformation resistance of rock mass, pressure is continuously applied to the test block using a hydraulic device. The final value is obtained by observing and collecting data. However, in traditional compressive deformation testing devices, the equipment supporting the hydraulic device is too large to be carried and transported quickly. In addition, due to the complex environment of the construction site, the large equipment cannot be installed quickly. Therefore, a portable on-site rock mass test reaction force providing device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a portable on-site rock mass test reaction force providing device, which aims to improve the problem that the equipment supporting the hydraulic device in the traditional compressive deformation test device is too large to be carried and transported quickly, and that the large equipment cannot be installed quickly due to the complex on-site environment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a portable on-site rock mass test reaction force providing device, comprising two horizontal beams arranged alternately at the top and bottom, the two horizontal beams being distributed in a cross shape, two support components being installed on the outside of the horizontal beams, a fixing component being installed on the outside of the support components, a jack abutting against the bottom of the lower horizontal beam, a pad abutting against the output end of the jack, and a test block abutting against the bottom of the pad;

[0007] The support assembly includes a meniscus, the bottom of which is located at the top of the crossbeam. A tie rod is slidably connected inside the meniscus. A nut is threaded onto the upper side of the tie rod. A washer is abutted against the bottom of the nut. A connecting block is fixedly connected to the bottom of the tie rod. A fixing pin is slidably connected inside the connecting block. An anchor rod is sleeved on the outside of the fixing pin.

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

[0009] The fixing component includes a housing, which is fixedly connected to the outside of the connecting block. A sleeve rod is fixedly connected to the inner wall of the housing, and a handle is slidably connected to the inner wall of the sleeve rod. A baffle is fixedly connected to the middle of the handle, and a spring is fixedly connected to the outside of the baffle. A sliding rod is fixedly connected to the outside of the sleeve rod, and an insert rod is slidably connected to the outside of the sliding rod. A connecting rod is provided between the insert rod and the baffle.

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

[0011] The bottom of the gasket abuts against the top of the meniscus, and the tie rod is sleeved inside the crossbeam.

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

[0013] One end of the connecting rod is rotatably connected to the bottom of the baffle, and the other end of the connecting rod is rotatably connected to the outside of the insert rod.

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

[0015] The handle is externally slidably connected to the inside of the housing, and the baffle and the sleeve abut against each other.

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

[0017] The spring is fitted inside the handle, and the end of the spring away from the baffle is fixedly connected to the inner wall of the outer casing.

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

[0019] The insertion rod is externally slidably connected to the inside of the housing, and the insertion rod is externally inserted into the fixing pin.

[0020] As a further description of the above technical solution:

[0021] The top of the anchor rod is fitted inside the connecting block.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by fixing the anchor rod to the ground and then using the fixing pin to install the connecting block on the top of the anchor rod, the tie rod and nut are engaged, and the meniscus is added to the crossbeam, which realizes quick installation, supports the jack, and enables it to work normally. The whole is portable, not affected by the site, and simple to operate.

[0024] 2. In this utility model, by pulling the handle, the baffle is compressed and the spring is compressed. At the same time, under the limit of the slide rod, the connecting rod is pulled to retract the insertion rod into the outer shell, which realizes the quick fixation of the fixing pin, avoids the use of bolts for fixation, saves time and effort, and makes the device more convenient to assemble and disassemble. Attached Figure Description

[0025] Figure 1 A three-dimensional schematic diagram of a portable on-site rock mass test reaction force providing device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the tie rod of a portable field rock mass test reaction force providing device proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0029] Figure 5 This is a schematic diagram of the structure of the insertion rod of a portable field rock mass test reaction force providing device proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the structure of an anchor rod for a portable on-site rock mass test reaction force providing device proposed in this utility model.

[0031] Legend:

[0032] 1. Crossbeam; 2. Meniscus; 3. Tie rod; 4. Nut; 5. Washer; 6. Connecting block; 7. Fixing pin; 8. Anchor rod; 9. Housing; 10. Sleeve rod; 11. Handle; 12. Baffle; 13. Spring; 14. Sliding rod; 15. Insert rod; 16. Connecting rod; 17. Jack; 18. Pad; 19. Test block. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 - Figure 4 The present invention provides an embodiment of a portable on-site rock mass test reaction force providing device, comprising two horizontal beams 1 arranged alternately at the top and bottom, and the two horizontal beams 1 are arranged in a cross shape. The horizontal beams 1 are used to provide reaction force to the jack 17, so that the jack 17 presses the pad 18. The cross shape keeps the jack 17 stable. Two support components are installed on the outside of the horizontal beams 1, and fixing components are installed on the outside of the support components. The bottom of the lower horizontal beam 1 abuts against the jack 17, the output end of the jack 17 abuts against the pad 18, and the bottom of the pad 18 abuts against the test block 19. The jack 17 is used to press the pad 18. The pad 18 is used to protect the pad 18 and distribute the pressure evenly. The test block 19 is the rock mass to be tested.

[0035] The support assembly includes a meniscus 2, with its bottom set at the top of the crossbeam 1. A tie rod 3 is slidably connected inside the meniscus 2, and a nut 4 is threaded onto the upper side of the tie rod 3. A washer 5 abuts against the bottom of the nut 4. A connecting block 6 is fixedly connected to the bottom of the tie rod 3, and a fixing pin 7 is slidably connected inside the connecting block 6. An anchor rod 8 is sleeved on the outside of the fixing pin 7. The meniscus 2 slides and tilts on the crossbeam 1 to facilitate adjustment of the angle between the tie rod 3 and the crossbeam 1. The tie rod 3 is used to pull the crossbeam 1 to maintain its stability. The nut 4 is used to resist the meniscus 2 to prevent it from falling off. The washer 5... The purpose of this is to increase the stress point between the meniscus 2 and the nut 4. The connecting block 6 is used to facilitate the connection between the tie rod 3 and the anchor rod 8. The fixing pin 7 is used to fix the connecting block 6 on the upper side of the anchor rod 8. The anchor rod 8 is used to fix the entire device so that the device will not tilt and will always remain stable. The bottom of the gasket 5 and the top of the meniscus 2 abut against each other. The gasket 5 increases the stress point of the meniscus 2 and protects the meniscus 2 from damage. The tie rod 3 is sleeved inside the crossbeam 1 to make the tension of the tie rod 3 evenly distributed. The top of the anchor rod 8 is sleeved inside the connecting block 6 so that the connecting block 6 can be pulled to achieve stability.

[0036] Reference Figure 4 - Figure 5The fixing assembly includes a housing 9, which is externally fixed to the connecting block 6. A sleeve rod 10 is fixedly connected to the inner wall of the housing 9, and a handle 11 is slidably connected to the inner wall of the sleeve rod 10. A baffle 12 is fixedly connected to the middle of the handle 11, and a spring 13 is fixedly connected to the outside of the baffle 12. A sliding rod 14 is fixedly connected to the outside of the sleeve rod 10, and an insert rod 15 is slidably connected to the outside of the sliding rod 14. A connecting rod 16 is provided between the insert rod 15 and the baffle 12. The housing 9 is for connecting and protecting the internal parts. The sleeve rod 10 is used to limit the movement direction of the handle 11, ensuring that the handle 11 can only move in the specified direction and will not move or shake randomly. The handle 11 is for manually pulling to drive the baffle 12 to compress the spring 13. The baffle 12 bears the thrust from the spring 13 and drives the handle 11 to move. The spring 13 is used to push the baffle 12 to reset the handle 11. The connecting rod 16 is for driving the insert rod 15 to move. The insert rod 15 is used to fix the fixing pin 7 to the connecting block 6. The slide rod 14 is used to limit the movement direction of the insert rod 15, ensuring that the insert rod 15 can only move up and down and will not move or shake randomly. One end of the connecting rod 16 is rotatably connected to the bottom of the baffle 12, and the other end of the connecting rod 16 is rotatably connected to the outside of the insert rod 15, so that when the baffle 12 moves, the connecting rod 16 can pull the insert rod 15 to move. The handle 11 is externally slidably connected to the inside of the outer shell 9, limiting the movement direction of the handle 11. The baffle 12 and the sleeve rod 10 abut against each other, limiting the movement distance of the baffle 12. The spring 13 is internally sleeved on the outside of the handle 11. The end of the spring 13 away from the baffle 12 is fixedly connected to the inner wall of the outer shell 9 to keep the spring 13 stable. The insert rod 15 is externally slidably connected to the inside of the outer shell 9. The insert rod 15 is externally inserted into the inside of the fixing pin 7. The insert rod 15 passes through the outer shell 9 and is inserted into the inside of the fixing pin 7 to achieve fixation.

[0037] Working principle: When assembling this device, first drill four anchor holes in the ground around the test block 19, then insert the anchor rod 8 and pour cement. After the cement solidifies, pull the handle 11 under the limit of the sleeve rod 10, causing the baffle 12 to compress the spring 13. At the same time, the connecting rod 16 pulls the insertion rod 15 upward. Then, put the connecting block 6 on top of the anchor rod 8, and then insert the fixing pin 7 into the connecting block 6, so that the fixing pin 7 is inside the anchor rod 8. Then release the handle 11, and the spring 13 will immediately push the baffle 12 to reset the handle 11. Under the limit of the slide rod 14, the connecting rod 16 pushes the insertion rod 15, popping out the insertion rod 15 and inserting it into the fixing pin 7 to achieve installation and fixation. Then, place the pad 18 on the test block 19 and put the jack 17 on top. The output end is placed at the center point of the pad 18. Then, the crossbeam 1 is taken out and placed on top of the jack 17. Next, the two opposite pull rods 3 are inserted into the grooves of the crossbeam 1. Then, the meniscus 2 and the gasket 5 are put onto the pull rods 3 in sequence, so that the gasket 5 abuts against the crossbeam 1. Finally, the nut 4 is screwed in from the top of the pull rod 3. With the help of a wrench, the two nuts 4 are tightened to transmit the force to the meniscus 2 and the crossbeam 1. Then, the other two pull rods 3 are fixed in place in the same way using another crossbeam 1. At this time, the jack 17 can be controlled to work. The test block 19 is pressed by the force exerted by the crossbeam 1 on the jack 17 to measure the compressive deformation capacity of the test block 19. The whole device is simple to assemble and disassemble, not limited by the site, easy to operate, and easy to carry.

[0038] 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 portable in-situ rock mass test reaction force providing device, comprising two horizontal beams (1) arranged alternately at the top and bottom, wherein the two horizontal beams (1) are distributed in a cross shape, characterized in that: Two support components are installed on the outside of the crossbeam (1), and a fixing component is installed on the outside of the support components. A jack (17) is abutted at the bottom of the lower side of the crossbeam (1). A pad (18) is abutted at the output end of the jack (17), and a test block (19) is abutted at the bottom of the pad (18). The support assembly includes a meniscus (2), the bottom of which is located at the top of the crossbeam (1). A tie rod (3) is slidably connected inside the meniscus (2). A nut (4) is threadedly connected to the upper side of the tie rod (3). A washer (5) is abutted against the bottom of the nut (4). A connecting block (6) is fixedly connected to the bottom of the tie rod (3). A fixing pin (7) is slidably connected inside the connecting block (6). An anchor rod (8) is sleeved on the outside of the fixing pin (7).

2. The portable in-situ rock mass test reaction force providing device according to claim 1, characterized in that: The fixing assembly includes a housing (9), which is fixedly connected to the outside of the connecting block (6). A sleeve rod (10) is fixedly connected to the inner wall of the housing (9). A handle (11) is slidably connected to the inner wall of the sleeve rod (10). A baffle (12) is fixedly connected to the middle of the handle (11). A spring (13) is fixedly connected to the outside of the baffle (12). A sliding rod (14) is fixedly connected to the outside of the sleeve rod (10). An insert rod (15) is slidably connected to the outside of the sliding rod (14). A connecting rod (16) is provided between the insert rod (15) and the baffle (12).

3. The portable in-situ rock mass test reaction force providing device according to claim 1, characterized in that: The bottom of the gasket (5) abuts against the top of the meniscus (2), and the tie rod (3) is sleeved inside the crossbeam (1).

4. The portable in-situ rock mass test reaction force providing device according to claim 2, characterized in that: One end of the connecting rod (16) is rotatably connected to the bottom of the baffle (12), and the other end of the connecting rod (16) is rotatably connected to the outside of the insert rod (15).

5. A portable in-situ rock mass test reaction force providing device according to claim 2, characterized in that: The handle (11) is externally slidably connected to the inside of the outer casing (9), and the baffle (12) and the sleeve (10) abut against each other.

6. The portable in-situ rock mass test reaction force providing device according to claim 2, characterized in that: The spring (13) is sleeved inside the handle (11), and one end of the spring (13) away from the baffle (12) is fixedly connected to the inner wall of the outer shell (9).

7. A portable in-situ rock mass test reaction force providing device according to claim 2, characterized in that: The insertion rod (15) is externally slidably connected to the inside of the outer casing (9), and the insertion rod (15) is externally inserted into the inside of the fixing pin (7).

8. The portable in-situ rock mass test reaction force providing device according to claim 1, characterized in that: The top of the anchor rod (8) is fitted inside the connecting block (6).

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