A basalt fiber longitudinal and transverse shear test fixture

Abstract

The present invention relates to the technical field of test fixtures, and in particular to a basalt fiber longitudinal and transverse shear test fixture, comprising a test frame, and a test telescopic cylinder arranged on the test frame, wherein a fixed plate is fixedly connected to the inner side of the test frame, lower fixtures are fixedly connected to both sides of the top of the fixed plate, a clamping mechanism is arranged on the lower fixture, a sliding plate is slidably connected to the inner side of the test frame, an output end of the test telescopic cylinder passes through the top of the test frame and is fixedly connected to the top of the sliding plate, a U-shaped plate is slidably connected to the bottom of the sliding plate, a pair of upper clamps are fixedly connected to the bottom of the U-shaped plate, a sliding clamp is slidably connected to the bottom of the U-shaped plate and is located between the upper clamps, and a straight groove is provided on the top of the U-shaped plate. Before testing, the present invention first clamps the basalt fiber sample in the two lower fixtures in the transverse and longitudinal directions, and then automatically performs longitudinal and transverse shear tests on the two samples through the mutual cooperation of structures such as a driving mechanism, a transmission mechanism and a movable clamp, thereby saving time and labor and greatly improving the testing efficiency of the device.

Description

Technical Field

[0001] The invention relates to the technical field of test fixtures, and in particular to a basalt fiber longitudinal and transverse shear test fixture. Background Art

[0002] Basalt fiber is made by high-temperature melting of basalt ore and drawing. It has silicates similar to natural ore. It can be biodegraded in the environment after being discarded and is harmless to the environment. The shear strength test of basalt fiber refers to the maximum shear stress of basalt fiber to resist shear damage when it is subjected to shear force. The shear strength test is usually carried out using a tensile testing machine. The basalt fiber sample is clamped and installed on a fixture, and then the fixture is installed on the tensile testing machine. After that, the shear strength test of the composite material sample is carried out using the tensile testing machine.

[0003] The prior art discloses a test device for testing the shear performance of the interface between fibers and media, which is disclosed in CN113484166A. Different test media can be added inside the storage element, such as cement soil, concrete or soil, so that the fibers can be inside the medium. Then, the jack is operated to push the pusher to move inside the storage element. Then, the jack load, loading level and consolidation time are determined according to the needs. Then, the clamp of the dynamometer is controlled to connect with the exposed fibers. Then, the magnet of the displacement micrometer is connected with the tension trolley. Then, a high-definition camera is turned on for recording. Then, weights are added inside the load bucket. Then, the movement of the fibers is observed until the fibers are pulled out or sliding friction is generated. Then, the video is stopped to test and obtain accurate data, so that the anchoring force, anchoring length and anchoring area of ​​the fibers in different material media affect the shear performance of the interface between the fibers and the media.

[0004] However, there are still some defects in the actual detection process. In order to ensure the accuracy of the shear force test of basalt fiber, the basalt fiber is usually subjected to shear tests in both longitudinal and transverse directions. However, when the existing shear tester fixture replaces the basalt fiber sample after completing a test, it is usually necessary to remove the last test sample and replace the new basalt fiber sample with the tensile tester. This is not only time-consuming and labor-intensive, but also greatly reduces the detection efficiency of the device.

[0005] Therefore, a basalt fiber longitudinal and transverse shear test fixture was proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a basalt fiber longitudinal and transverse shear test fixture.

[0007] In order to achieve the above objectives, the technical solution adopted by the present invention is: a basalt fiber longitudinal and transverse shear test fixture, comprising a test frame, and a test telescopic cylinder arranged on the test frame, the inner side of the test frame is fixedly connected to a fixed plate, both sides of the top of the fixed plate are fixedly connected to lower fixtures, the lower fixture is provided with a clamping mechanism, the inner side of the test frame is slidably connected to a sliding plate, the output end of the test telescopic cylinder passes through the top of the test frame and is fixedly connected to the top of the sliding plate, the bottom of the sliding plate is slidably connected to a U-shaped plate, the bottom of the U-shaped plate is fixedly connected to a pair of upper clamps, and the bottom of the U-shaped plate The U-shaped plate is provided with a straight groove on the top, and a round rod slidably connected to the inner side of the straight groove is fixedly connected to the top of the sliding clamping plate. A top plate is provided on the inner side of the U-shaped plate, and an upper inclined groove is provided on the top of the top plate, and the round rod is inserted into the inner side of the upper inclined groove. A driving mechanism for driving the top plate to move is provided on the rear side of the test frame, and a side frame is fixedly connected to the side wall of the top plate, and an L-shaped plate is fixedly connected to the top of the U-shaped plate, and the L-shaped plate is slidably connected to the inner side of the side frame, and three upper springs are fixedly connected between the inner walls of the side frame and the outer wall of the L-shaped plate.

[0008] In the above technical solution, further, the driving mechanism includes a driving motor, both ends of the rear side of the test frame are fixedly connected with rear plates, a pair of threaded rods are rotatably connected between the rear plates, a sliding frame is slidably connected to the rear side of the test frame, the threaded rods are all threadedly connected to the inner side wall of the sliding frame, the driving motor is fixedly connected to one of the side walls of the rear plate, the output end of the driving motor passes through the side wall of the rear plate and is fixedly connected to one of the side walls of the threaded rod, a transmission mechanism is provided between the threaded rods, a connecting rod is longitudinally slidably connected to the front side of the sliding frame, a transverse groove is provided on the top of the sliding plate, and the other end of the connecting rod passes through the transverse groove and is fixedly connected to the top of the top plate.

[0009] In the above technical solution, further, the transmission mechanism includes a chain, the side walls of the threaded rod pass through the outer wall of the rear plate and are fixedly connected to sprockets, and the chain transmission is connected between the sprockets.

[0010] In the above technical solution, further, a movable groove is provided on the side wall of the test frame at a position corresponding to the side frame.

[0011] In the above technical solution, further, the clamping mechanism includes a screw rod, the inner side of the lower clamp is slidably connected to a movable clamp plate, a pair of screw rods are provided, and the screw rods are threadedly connected to the front side of the lower clamp, the rear sides of the screw rods are rotatably connected to the side wall of the movable clamp plate, the inner side of the lower clamp is fixedly connected to a lower clamp plate, and the positions of the two lower clamps are different, and the front sides of the lower clamps are respectively aligned with the sides close to the two upper clamps.

[0012] In the above technical solution, further, the top ends of the movable clamping plate and the lower clamping plate are fixedly connected with guide plates, and the guide plates are arranged at one end away from the top ends of the movable clamping plate and the lower clamping plate.

[0013] The cam is secured to the bottom of the fixing plate and is engageable with the support of the mounting plate, the fixing plate being engageable with the mounting plate at the bottom of the fixing plate and engageable with the mounting plate at the bottom of the fixing plate.

[0014] In the above technical solution, further, a pair of electric telescopic cylinders are fixedly connected to the bottom end of the material receiving box, a pushing plate is fixedly connected between the output end of the electric telescopic cylinder and the front side of the adjusting plate, the groove is inclined near the two ends of the right-angle block, a lower spring is fixedly connected between the upper limit plate and the lower limit plate, and through grooves are provided on the side walls of the material receiving box at positions corresponding to the upper limit plate and the lower limit plate.

[0015] In the above technical solution, further, a fixed frame is fixedly connected to the bottom of the fixed plate, a collecting box is slidably connected to the inner side of the fixed frame, and discharge ports are provided at the bottom end of the collecting box and the top end of the fixed plate and below the clamping seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Before testing, the basalt fiber sample is clamped horizontally and vertically in two lower clamps. Then, through the cooperation of the driving mechanism, transmission mechanism and movable clamping plate, the two samples can be automatically subjected to vertical and horizontal shear tests, which saves time and effort and greatly improves the detection efficiency of the device.

[0018] 2. The present invention can automatically collect the disconnected samples from the top after each basalt fiber sample test is completed through the mutual cooperation of the electric telescopic cylinder, the upper limit plate and the lower limit plate, so as to facilitate subsequent unified processing and avoid affecting the subsequent clamping test, thereby further improving the convenience performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front three-dimensional structure of the test frame of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear-view stereoscopic structure of the test frame of the present invention;

[0021] Figure 3 It is a top view of the three-dimensional structure of the fixing plate of the present invention;

[0022] Figure 4 It is a top view of the three-dimensional structure of the U-shaped plate and the adjustment plate of the present invention;

[0023] Figure 5 It is a schematic diagram of the rear-view full-section three-dimensional structure of the U-shaped plate of the present invention;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the U-shaped plate of the present invention when viewed from above;

[0025] Figure 7 It is a schematic diagram of the front full-section three-dimensional structure of the material receiving box of the present invention;

[0026] Figure 8 It is a schematic diagram of the overall appearance structure of the clamping seat and the adjustment plate of the present invention;

[0027] Fig. 9 It is a schematic diagram of the overall appearance structure of the clamping seat of the present invention;

[0028] Fig.10 It is a schematic diagram of the rear three-dimensional structure of the adjustment plate of the present invention.

[0029] In the figure: 1, test frame; 2, test telescopic cylinder; 3, fixed plate; 4, lower fixture; 5, sliding plate; 6, U-shaped plate; 7, upper clamping plate; 8, sliding clamping plate; 9, round rod; 10, top plate; 11, upper inclined groove; 12, side frame; 13, L-shaped plate; 14, upper spring; 15, driving motor; 16, rear plate; 17, threaded rod; 18, sliding frame; 19, connecting rod; 20, horizontal groove; 21, chain; 22, sprocket; 23, moving groove; 24, thread Rod; 25, movable splint; 26, lower splint; 27, guide plate; 28, material collection box; 29, movable plate; 30, clamping seat; 31, lower limit plate; 32, right-angle block; 33, round rod; 34, adjustment plate; 35, through slot; 36, vertical slot; 37, lower inclined slot; 38, electric telescopic cylinder; 39, push plate; 40, groove; 41, upper limit plate; 42, lower spring; 43, fixed frame; 44, collection box; 45, discharge port; 46, straight slot. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figure 1-10 The basalt fiber longitudinal and transverse shear test fixture shown in the figure comprises a test frame 1, and a test telescopic cylinder 2 arranged on the test frame 1, a fixed plate 3 is fixedly connected to the inner side of the test frame 1, and lower clamps 4 are fixedly connected to both sides of the top of the fixed plate 3, and a clamping mechanism is provided on the lower clamp 4, and a sliding plate 5 is slidably connected to the inner side of the test frame 1, and the output end of the test telescopic cylinder 2 passes through the top of the test frame 1 and is fixedly connected to the top of the sliding plate 5, and a U-shaped plate 6 is slidably connected to the bottom of the sliding plate 5, and a pair of upper clamps 7 are fixedly connected to the bottom of the U-shaped plate 6, and a sliding clamp is slidably connected to the bottom of the U-shaped plate 6 and located between the upper clamps 7 Plate 8, a straight groove 46 is opened on the top of the U-shaped plate 6, a round rod 9 is fixedly connected to the top of the sliding clamping plate 8 and is slidably connected to the inner side of the straight groove 46, a top plate 10 is provided on the inner side of the U-shaped plate 6, an upper inclined groove 11 is opened on the top of the top plate 10, and the round rod 9 is inserted into the inner side of the upper inclined groove 11, a driving mechanism for driving the top plate 10 to move is provided on the rear side of the test frame 1, a side frame 12 is fixedly connected to the side wall of the top plate 10, an L-shaped plate 13 is fixedly connected to the top of the U-shaped plate 6, and the L-shaped plate 13 is slidably connected to the inner side of the side frame 12, and three upper springs 14 are fixedly connected between the inner walls of the side frame 12 and the outer wall of the L-shaped plate 13;

[0033] The driving mechanism includes a driving motor 15, and both ends of the rear side of the test frame 1 are fixedly connected with a rear plate 16, and a pair of threaded rods 17 are rotatably connected between the rear plates 16. A sliding frame 18 is slidably connected to the rear side of the test frame 1, and the threaded rods 17 are all threadedly connected to the inner side wall of the sliding frame 18. The driving motor 15 is fixedly connected to one of the side walls of the rear plate 16, and the output end of the driving motor 15 passes through the side wall of the rear plate 16 and is fixedly connected to one of the side walls of the threaded rods 17. A transmission mechanism is provided between the threaded rods 17, and a connecting rod 19 is longitudinally slidably connected to the front side of the sliding frame 18. A transverse groove 20 is provided on the top of the sliding plate 5, and the other end of the connecting rod 19 passes through the transverse groove 20 and is fixedly connected to the top of the top plate 10. The transmission mechanism includes a chain 21, and the side walls of the threaded rods 17 pass through the outer wall of the rear plate 16 and are fixedly connected to a sprocket 22, and the chain 21 is transmission-connected between the sprockets 22;

[0034] Before testing, the basalt fiber sample is first clamped horizontally and vertically in the two lower clamps 4 by the clamping mechanism. The upper clamp plate 7 and the sliding clamp plate 8 in the initial position are located in the middle of the test frame 1. Then the driving motor 15 is controlled to start and drive one of the threaded rods 17 to rotate, and at the same time drive one of the sprockets 22 to rotate, and then drive the other sprocket 22 and the threaded rod 17 to rotate under the transmission of the chain 21, and then drive the threaded sliding frame 18 to move, and at the same time drive the top plate 10 and the side frame 12 to move through the connecting rod 19. At this time, since the side wall of the U-shaped plate 6 is not restricted, the L-shaped plate 13 and the U-shaped plate 6 will be driven by the side frame 12 to move under the sliding plate 5 at the same time. Then, when the U-shaped plate 6 moves to the top of one of the lower clamps 4, the side wall of the U-shaped plate 6 will be blocked by the inner side of the test frame 1, and at the same time, the sliding clamp plate 8 and the upper clamp plate 7 will slide to both sides of the basalt fiber sample;

[0035] Then, the sliding frame 18 continues to move, driving the side frame 12 and the top plate 10 to continue to move. At this time, the L-shaped plate 13 will slide on the inside of the side frame 12 and gradually compress the upper spring 14. At the same time, the round rod 9 will move on the inside of the straight groove 46 under the extrusion of the upper inclined groove 11, and drive the sliding clamp 8 to slide, so as to clamp the basalt fiber sample between the sliding clamp 8 and the upper clamp 7. Then, the test telescopic cylinder 2 can be controlled to start pulling the sliding plate 5 to move upward, and at the same time, the connecting rod 19 will be driven to slide on the side wall of the sliding frame 18, so as to monitor the shear test data of the basalt fiber sample through the sensor, and the transverse shear test of the basalt fiber can be completed. After the final test is completed, the driving motor 15 is controlled to reverse and drive the sliding frame 18 to move in the opposite direction, push the U-shaped plate 6 to the other side of the test frame 1, and clamp and test the basalt fiber sample longitudinally clamped on the other lower clamp 4 (it should be noted here that the directions of movement of the sliding clamp 8 are different twice, so the position of the lower clamp 26 fixed on the lower clamp 4 is also different).

[0036] In order to avoid obstructing the normal operation of the device, a movable groove 23 is opened on the side wall of the test frame 1 and at a position corresponding to the side frame 12. The movable groove 23 is set to avoid obstructing the movement of the side frame 12, so that the upper clamping plate 7 and the sliding clamping plate 8 are obstructed when they are not above the basalt fiber sample on the other side, affecting the normal operation of the device.

[0037] In order to clamp and fix the bottom of the basalt fiber sample in advance, the clamping mechanism includes a screw rod 24, and the inner side of the lower clamp 4 is slidably connected with a movable clamp plate 25. A pair of screw rods 24 are provided, and the screw rods 24 are threadedly connected to the front side of the lower clamp 4, and the rear side of the screw rods 24 is rotatably connected to the side wall of the movable clamp plate 25. The inner side of the lower clamp 4 is fixedly connected with a lower clamp plate 26, and the positions of the two lower clamp plates 26 are different. The front side of the lower clamp plate 26 is aligned with the side close to the two upper clamp plates 7 respectively;

[0038] Before testing, the basalt fiber sample is placed horizontally and vertically between the movable clamping plate 25 and the lower clamping plate 26 in turn, and then the screw rod 24 is rotated spirally to the rear side, thereby pushing the movable clamping plate 25 to move closer to the lower clamping plate 26, and then the bottom of the basalt fiber sample is clamped between the movable clamping plate 25 and the lower clamping plate 26, so as to facilitate subsequent automatic testing.

[0039] In order to improve the stability of the device during operation, the top of the movable splint 25 and the lower splint 26 are fixedly connected with a guide plate 27, and the guide plate 27 is arranged at an end away from the top of the movable splint 25 and the lower splint 26. Through the setting of the guide plate 27, the guiding effect on the basalt fiber sample can be activated, so that the clamped basalt fiber sample can be kept in a vertical state as much as possible, and then it is convenient to insert it into the sliding splint 8 and the upper splint 7 for clamping, so as to avoid bending of the basalt fiber sample and affect the normal operation of the device, and the end of the upper splint 7 close to one side is inclined to facilitate guiding the basalt fiber sample to slide between the upper splint 7 and the sliding splint 8.

[0040] In order to be able to automatically collect the samples disconnected from the top after each basalt fiber sample test is completed, a material collection box 28 is fixedly connected to the top of the fixed plate 3, and both ends of the inner side of the material collection box 28 are slidably connected to a movable plate 29, and the front side of the movable plate 29 is fixedly connected to a clamping seat 30, and the inner side of the clamping seat 30 is fixedly connected to an upper limit plate 41 set through the side wall of the material collection box 28, and the inner side of the clamping seat 30 is slidably connected to a lower limit plate 31 set through the side wall of the material collection box 28. It should be noted here that the positions of the two pairs of clamping seats 30 are not on the same horizontal line, and are respectively arranged opposite to the clamping mechanisms on both sides. The test personnel need to pass the test sample between the lower limit plate 31 and the upper limit plate 41 before clamping the sample. The front side of the lower limit plate 31 is fixedly connected with a right-angle block 32, and the front side of the clamping seat 30 is fixedly connected with a round rod 33. An adjustment plate 34 is provided inside the material receiving box 28 and at the front end of the clamping seat 30. The top of the adjustment plate 34 is tilted, and a vertical groove 36 is provided at the rear side of the adjustment plate 34 and at a position corresponding to the round rod 33. A lower inclined groove 37 is provided at the bottom of the vertical groove 36. The round rod 33 is inserted into the inner side of the vertical groove 36, and an indented groove 40 is provided at the rear side of the adjustment plate 34 and below the round rod 33.

[0041] A pair of electric telescopic cylinders 38 are fixedly connected to the bottom end of the material receiving box 28, a push plate 39 is fixedly connected between the output end of the electric telescopic cylinder 38 and the front side of the adjustment plate 34, the groove 40 is inclined near the two ends of the right-angle block 32, a lower spring 42 is fixedly connected between the upper limit plate 41 and the lower limit plate 31, and the side wall of the material receiving box 28 and the upper limit plate 41 and the lower limit plate 31 are provided with through grooves 35 at the corresponding positions. The through grooves 35 are provided to avoid hindering the sample from being clamped into the material receiving box 28 and affecting the normal operation of the device;

[0042] After the specimen is reset after the shear test, the electric telescopic cylinder 38 can be controlled to start moving the adjusting plate 34 through the push plate 39, and then the right-angle block 32 is squeezed to slide backward through the inclined surface on the top of the adjusting plate 34, and the lower limit plate 31 is driven to slide toward the side close to the upper limit plate 41, and the lower spring 42 is compressed, so that the broken specimen is clamped between the upper limit plate 41 and the lower limit plate 31, and then the driving mechanism is controlled to start releasing the clamping of the top specimen. At the same time, the circular rod 33 will slide inside the vertical groove 36, and then the right-angle block 32 will complete sliding out of the inclined surface on the top of the adjusting plate 34, and squeeze on the rear side of the adjusting plate 34. The right-angle block 32 is kept squeezed through the adjusting plate 34. The rod 33 will slide out of the vertical slot 36 and into the lower inclined slot 37, and then, under the pressure of the lower inclined slot 37, since the adjustment plate 34 can only slide up and down, it will push the circular rod 33 to slide along the lower inclined slot 37, and at the same time drive the clamping seat 30 and the movable plate 29 to slide laterally on the inner side of the material receiving box 28, thereby driving the clamped sample to pass through the through slot 35 and enter the material receiving box 28. Finally, the right-angle block 32 will move to the groove 40 as the circular rod 33 pushes it, thereby losing the pressure on the right-angle block 32, and then the lower limit plate 31 is pushed forward to slide under the elastic force of the lower spring 42, thereby releasing the clamping of the sample, and then the sample falls down under its own gravity, passes through the discharge port 45 and falls into the collection box 44.

[0043] In order to collect the clamped basalt fiber samples, a fixed frame 43 is fixedly connected to the bottom of the fixed plate 3, and a collecting box 44 is slidably connected to the inner side of the fixed frame 43. A discharge port 45 is provided at the bottom end of the collecting box 28 and the top end of the fixed plate 3 and below the clamping seat 30. The discharge port 45 facilitates the fallen samples to fall into the collecting box 44. When the collecting box 44 is full, the collecting box 44 can be pulled out of the fixed frame 43, and then the collected samples in the collecting box 44 can be disposed of.

[0044] The basic principles, main features and advantages of the present invention are shown and described above.

[0045] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A basalt fiber longitudinal and transverse shear test fixture, comprising a test frame (1), and a test telescopic cylinder (2) arranged on the test frame (1), characterized in that: A fixed plate (3) is fixedly connected to the inside of the test frame (1), and lower clamps (4) are fixedly connected to both sides of the top of the fixed plate (3), and a clamping mechanism is provided on the lower clamp (4). A sliding plate (5) is slidably connected to the inside of the test frame (1), and the output end of the test telescopic cylinder (2) passes through the top of the test frame (1) and is fixedly connected to the top of the sliding plate (5). A U-shaped plate (6) is slidably connected to the bottom of the sliding plate (5), and a pair of upper clamps (7) are fixedly connected to the bottom of the U-shaped plate (6). The bottom of the U-shaped plate (6) is located at the upper clamp (7). A sliding clamp (8) is slidably connected between the U-shaped plate (6) and the test frame (1); a straight groove (46) is provided on the top of the U-shaped plate (6); a round rod (9) slidably connected to the inner side of the straight groove (46) is fixedly connected to the top of the sliding clamp (8); a top plate (10) is provided on the inner side of the U-shaped plate (6); an upper inclined groove (11) is provided on the top of the top plate (10), and the round rod (9) is inserted into the inner side of the upper inclined groove (11); a driving mechanism for driving the top plate (10) to move is provided on the rear side of the test frame (1); a side frame (12) is fixedly connected to the side wall of the top plate (10); The top of the U-shaped plate (6) is fixedly connected to an L-shaped plate (13), and the L-shaped plate (13) is slidably connected to the inner side of the side frame (12). Three upper springs (14) are fixedly connected between the inner walls of the side frame (12) and the outer walls of the L-shaped plate (13). The driving mechanism comprises a driving motor (15). The two ends of the rear side of the test frame (1) are fixedly connected to rear plates (16). A pair of threaded rods (17) are rotatably connected between the rear plates (16). The rear side of the test frame (1) is slidably connected to a sliding frame (18). The threaded rods (17) are A threaded connection is formed on the inner wall of the sliding frame (18); the driving motor (15) is fixedly connected to one of the side walls of the rear plate (16); the output end of the driving motor (15) passes through the side wall of the rear plate (16) and is fixedly connected to the side wall of one of the threaded rods (17); a transmission mechanism is provided between the threaded rods (17); a connecting rod (19) is longitudinally slidably connected to the front side of the sliding frame (18); a transverse groove (20) is formed on the top of the sliding plate (5); the other end of the connecting rod (19) passes through the transverse groove (20) and is fixedly connected to the top of the top plate (10).

2. A basalt fiber longitudinal and transverse shear test fixture according to claim 1, characterized in that: The transmission mechanism comprises a chain (21), the side walls of the threaded rod (17) pass through the outer wall of the rear plate (16) and are fixedly connected to a sprocket (22), and the chain (21) is transmission-connected between the sprockets (22).

3. A basalt fiber longitudinal and transverse shear test fixture according to claim 1, characterized in that: A movable groove (23) is provided on the side wall of the test frame (1) at a position corresponding to the side frame (12).

4. The basalt fiber longitudinal and transverse shear test fixture according to claim 1, characterized in that: The clamping mechanism comprises a screw rod (24), the inner side of each of the lower clamps (4) is slidably connected to a movable clamp plate (25), a pair of screw rods (24) are provided, and each of the screw rods (24) is threadedly connected to the front side of the lower clamp (4), and the rear side of each of the screw rods (24) is rotatably connected to the side wall of the movable clamp plate (25), and the inner side of each of the lower clamps (4) is fixedly connected to a lower clamp plate (26), and the two lower clamp plates (26) are at different positions, and the front sides of the lower clamp plates (26) are respectively aligned with the sides close to the two upper clamp plates (7).

5. A basalt fiber longitudinal and transverse shear test fixture according to claim 4, characterized in that: The top ends of the movable clamping plate (25) and the lower clamping plate (26) are both fixedly connected with a guide plate (27), and the guide plate (27) is arranged at an end away from the top ends of the movable clamping plate (25) and the lower clamping plate (26).

6. The basalt fiber longitudinal and transverse shear test fixture according to claim 1, characterized in that: The top of the fixed plate (3) is fixedly connected to a material receiving box (28), both ends of the inner side of the material receiving box (28) are slidably connected to a movable plate (29), the front side of the movable plate (29) is fixedly connected to a clamping seat (30), the inner side of the clamping seat (30) is fixedly connected to an upper limit plate (41) arranged through the side wall of the material receiving box (28), and the inner side of the clamping seat (30) is slidably connected to a lower limit plate (31) arranged through the side wall of the material receiving box (28), the front side of the lower limit plate (31) is fixedly connected to a right-angle block (32), and the A circular rod (33) is fixedly connected to the front side of the clamping seat (30); an adjustment plate (34) is provided inside the material receiving box (28) and at the front end of the clamping seat (30); the top of the adjustment plate (34) is tilted; a vertical groove (36) is provided at the rear side of the adjustment plate (34) and at a position corresponding to the circular rod (33); a lower inclined groove (37) is provided at the bottom of the vertical groove (36); the circular rod (33) is inserted into the inner side of the vertical groove (36); and an inwardly recessed groove (40) is provided at the rear side of the adjustment plate (34) and below the circular rod (33).

7. A basalt fiber longitudinal and transverse shear test fixture according to claim 6, characterized in that: A pair of electric telescopic cylinders (38) are fixedly connected to the bottom end of the material receiving box (28); a push plate (39) is fixedly connected between the output end of the electric telescopic cylinder (38) and the front side of the adjustment plate (34); the groove (40) is inclinedly arranged near the two ends of the right-angle block (32); a lower spring (42) is fixedly connected between the upper limit plate (41) and the lower limit plate (31); and through grooves (35) are provided on the side walls of the material receiving box (28) and at positions corresponding to the upper limit plate (41) and the lower limit plate (31).

8. The basalt fiber longitudinal and transverse shear test fixture according to claim 6, characterized in that: A fixing frame (43) is fixedly connected to the bottom of the fixing plate (3), a collecting box (44) is slidably connected to the inside of the fixing frame (43), and a discharge port (45) is provided at the bottom end of the collecting box (28) and the top end of the fixing plate (3) and below the clamping seat (30).

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