House building raw material tension detection device

Abstract

The invention relates to the technical field of tension testing, in particular to a housing building raw material tension detection device which comprises a bottom plate, a controller body is arranged on one side of the bottom plate, and a fixing frame is fixed to the top end of the bottom plate. A hydraulic rod is fixed to the top end of the fixing frame, the controller body is electrically connected with the hydraulic rod, the telescopic end of the hydraulic rod extends to the inner side of the top end of the fixing frame, a fixing plate is fixed to the telescopic end of the hydraulic rod, and the fixing base is fixed to the position, located on the inner side of the fixing frame, of the top end of the bottom plate. Clamping assemblies are arranged at the lower end of the fixing plate and the top end of the fixing base correspondingly. According to the invention, through the cooperative structural design of the fixing plate and the clamping assembly, the tensile force test can be carried out on multiple materials at the same time, so that the tensile deformation change conditions of different materials can be visually observed, the working efficiency of comparison test is effectively improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of tensile testing technology, and more specifically, to a tensile testing device for building construction materials. Background Technology

[0002] Steel reinforcement is a very common and widely used building material in modern construction engineering. It is generally poured into concrete layers as a metal skeleton to enhance the structural strength and stability of the building. Steel reinforcement mainly bears tensile stress in building structures. Therefore, after the steel reinforcement of different materials and types is produced, it is necessary to conduct tensile force testing to determine the tensile strength of the steel reinforcement, so as to facilitate matching and achieve scientific material proportioning during construction.

[0003] A search revealed publication number (CN221667484U), which discloses a material tensile testing machine. The machine comprises: a stable base positioned on the ground or within the test area; a hydraulic tension rod fixedly mounted on the stable base; a connecting plate between the hydraulic tension rod and the stable base; a top tensioning platform fixedly mounted at the end of the hydraulic tension rod furthest from the connecting plate; an upper buckle fixedly mounted on the top tensioning platform; a lower buckle corresponding to the upper buckle and fixedly connected to the connecting plate; and a collection structure fixedly mounted between the lower buckle and the connecting plate to collect debris generated during the tensile test. This invention solves the problem of debris not being cleaned and recycled during material tensile testing. The collection structure effectively collects the debris, preventing it from entering the lower buckle and causing it to become loose, thus affecting the tensile test structure. It also better prevents debris from splashing, resulting in a cleaner working area.

[0004] The aforementioned patents and most existing devices can only test a single material individually in practical use. Although they can perform tensile testing on the test material, when it is necessary to conduct comparative tests on different materials under the same tensile value, the tests need to be repeated multiple times. This method seriously affects the efficiency of the test and cannot intuitively observe the changes in tensile deformation of different materials.

[0005] Based on this, the present invention discloses a tensile testing device for building construction raw materials. Summary of the Invention

[0006] To address the issues raised in the background art, where the aforementioned patents and most existing devices can only test individual materials in practical use, although they can perform tensile testing on the test materials, repeated testing is required when comparing different materials under the same tensile force value. This severely impacts testing efficiency and prevents direct observation of the tensile deformation changes of different materials. Therefore, this invention provides a tensile testing device for building construction raw materials, comprising a base plate, a controller body disposed on one side of the base plate, and a fixing frame fixed to the top of the base plate. A fixed base is fixed at the top of the fixed frame and located inside the fixed frame. A hydraulic rod is fixed at the top of the fixed frame. The controller body is electrically connected to the hydraulic rod. The telescopic end of the hydraulic rod extends to the inside of the top of the fixed frame. A fixed plate is fixed to the telescopic end of the hydraulic rod. Two reinforcing ribs are symmetrically fixed to the outer side of the end of the hydraulic rod near the fixed plate. The end of the reinforcing rib away from the hydraulic rod is fixedly connected to the fixed plate. Clamping components are provided at the lower end of the fixed plate and the top of the fixed base for clamping and fixing materials. A transparent protective plate is provided on one side of the fixed frame. The transparent protective plate is slidably connected to the fixed frame.

[0007] As a further improvement to this technical solution, the clamping assembly includes multiple fixing blocks, which are evenly arranged below the fixing plate and above the fixing base. A transmission assembly is provided between the multiple fixing blocks. A connecting seat is fixed to one end of each fixing block near the fixing plate or the fixing base, and a connecting bolt is fixed to the other end of the connecting seat away from the fixing block. The connecting bolt is connected to the fixing plate or the fixing base through the fixing bolt. Two clamping blocks are symmetrically arranged on the inner side of each fixing block. The clamping blocks are slidably connected to the fixing blocks. A limiting connecting plate is rotatably connected to one side of each fixing block at a position corresponding to the clamping blocks. The end of the limiting connecting plate near the clamping blocks is rotatably connected to the clamping blocks. An adjustment assembly is provided on the inner side of the connecting seat and the fixing blocks at a position corresponding to the clamping blocks.

[0008] As a further improvement to this technical solution, the adjustment component includes a built-in threaded moving rod, which is vertically arranged inside the fixed block and located between the two clamping blocks. The built-in threaded moving rod is slidably connected to the fixed block. A drive plate is fixed to the lower end of the built-in threaded moving rod. A drive groove is opened at the position corresponding to the drive plate on the clamping block. The drive plate is located inside the drive groove and is slidably connected to the clamping block. A transmission screw is threaded to the inner side of the top end of the built-in threaded moving rod, and the transmission screw is rotatably connected to the connecting seat.

[0009] As a further improvement to this technical solution, a transmission worm gear is fixed at the top of the transmission screw, and a transmission worm is rotatably connected to the inner side of the connecting seat at a position corresponding to the transmission worm gear, and the transmission worm is meshed with the transmission worm gear.

[0010] As a further improvement to this technical solution, the transmission assembly includes multiple connecting rods, which are positioned between two adjacent fixed blocks. The two ends of the connecting rods are respectively fixedly connected to the two fixed blocks. A transmission rod is rotatably connected to the inner side of the connecting rod, and the end of the transmission rod is fixedly connected to the transmission worm gear.

[0011] As a further improvement to this technical solution, a drive worm gear is fixed at the middle position of the transmission rod between the two fixed blocks in the middle. A drive worm is rotatably connected to the inner side of the connecting rod and at a position corresponding to the drive worm gear. The drive worm meshes with the drive worm gear. One end of the drive worm extends to the outer side of the connecting rod. A drive handle is fixed to the end of the drive worm located on the outer side of the connecting rod.

[0012] As a further improvement to this technical solution, both ends of the fixing plate are fixed with limit sliders, and a fixed slide rod is vertically arranged on the inner side of the limit slider. The limit slider is slidably connected to the fixed slide rod, the limit slider is slidably connected to the fixing frame, and the fixed slide rod is fixedly connected to the fixing frame.

[0013] As a further improvement to this technical solution, positioning slide rods are fixed at both ends of the fixing frame and at positions corresponding to the transparent protective plate. The transparent protective plate is slidably connected to the positioning slide rods, and plug-in components are provided on the inner sides of both ends of the lower end of the transparent protective plate.

[0014] As a further improvement to this technical solution, the plug-in assembly includes a plug-in rod, which is slidably connected to a transparent protective plate. A limiting plug-in block is fixed to one end of the plug-in rod near the fixed frame. The limiting plug-in block is slidably connected to the transparent protective plate. A limiting plug-in groove is formed at the upper middle position of the fixed frame, corresponding to the position of the limiting plug-in block. The limiting plug-in block is plugged into the fixed frame through the limiting plug-in groove. A plug-in spring is sleeved on the outer side of one end of the plug-in rod near the limiting plug-in block. One end of the plug-in spring is fixedly connected to the limiting plug-in block, and the other end of the plug-in spring is fixedly connected to the transparent protective plate.

[0015] As a further improvement to this technical solution, a movable connecting plate is provided on one side of the lower end of the transparent protective plate. The two ends of the movable connecting plate are respectively fixedly connected to the two plug-in rods. A lifting handle is fixed on the middle part of the movable connecting plate and on the side away from the transparent protective plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this tensile testing device for building materials, the combined structural design of the fixing plate and clamping components enables simultaneous tensile testing of multiple materials, thereby allowing for intuitive observation of the tensile deformation changes of different materials. This also effectively improves the efficiency of comparative testing and enhances the practicality of the device.

[0017] 2. In this tensile testing device for building materials, the transparent protective plate structure design effectively protects nearby workers in the event of material breakage and splashing during testing, thereby reducing the risk of injury to workers caused by material breakage and splashing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the clamping assembly of the present invention; Figure 3 This is a schematic diagram of the structure of the adjustment component of the present invention; Figure 4 This is a schematic diagram of the transmission rod of the present invention; Figure 5 This is a schematic diagram of the drive worm gear and drive worm of the present invention; Figure 6 This is a schematic diagram of the structure of the transparent protective plate of the present invention; Figure 7 This is a schematic diagram of the connection structure between the transparent protective plate and the fixing frame of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle.

[0019] The meanings of the labels in the diagram are as follows: 1. Base plate; 2. Controller body; 3. Fixed base; 4. Fixing frame; 5. Hydraulic rod; 6. Reinforcing rib; 7. Fixing plate; 8. Transparent protective plate; 9. Fixing block; 10. Fixing slide rod; 11. Limiting slider; 12. Connecting seat; 13. Connecting bolt; 14. Fixing bolt; 15. Connecting rod; 16. Clamping block; 17. Limiting connecting plate; 18. Built-in threaded moving rod; 19. Transmission screw; 20. Transmission worm gear; 21. Transmission worm; 22. Drive plate; 23. Drive slot; 24. Transmission rod; 25. Drive worm gear; 26. Drive worm; 27. Drive handle; 28. Positioning slide rod; 29. ​​Lifting handle; 30. Moving connecting plate; 31. Limiting insertion slot; 32. Limiting insertion block; 33. Insertion rod; 34. Insertion spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The aforementioned patents and most existing devices can only test a single material individually in practical use. Although they can perform tensile testing on the test material, when it is necessary to conduct comparative tests on different materials under the same tensile value, the tests need to be repeated multiple times. This method seriously affects the efficiency of the test and cannot intuitively observe the changes in tensile deformation of different materials.

[0022] Therefore, the present invention provides a tensile testing device for building construction raw materials, see [link]. Figures 1-8 As shown, it includes a base plate 1, a controller body 2 is provided on one side of the base plate 1, a fixing frame 4 is fixed to the top of the base plate 1, and a fixing base 3 is fixed to the top of the base plate 1 and inside the fixing frame 4. To facilitate providing tensile force during testing, a hydraulic rod 5 is fixed to the top of the fixing frame 4. The controller body 2 is electrically connected to the hydraulic rod 5, thereby facilitating the control of the extension and retraction of the hydraulic rod 5 through the controller body 2, and simultaneously facilitating the monitoring of relevant data from the tensile force test. The extension and retraction end of the hydraulic rod 5 extends to the inside of the top of the fixing frame 4. A fixing plate 7 is fixed at one end. To improve the stability of the connection between the fixing plate 7 and the hydraulic rod 5, two reinforcing ribs 6 are symmetrically fixed on the outer side of the end of the hydraulic rod 5 near the fixing plate 7. The end of the reinforcing rib 6 away from the hydraulic rod 5 is fixedly connected to the fixing plate 7. Clamping components are provided at the lower end of the fixing plate 7 and the top end of the fixing base 3 for clamping and fixing the material. A transparent protective plate 8 is provided on one side of the fixing frame 4. Through the structural design of the transparent protective plate 8, the staff can be protected during the test. The transparent protective plate 8 is slidably connected to the fixing frame 4.

[0023] Through the combined structural design of the fixing plate 7 and the clamping assembly, tensile tests can be performed on multiple materials simultaneously, allowing for intuitive observation of the tensile deformation changes of different materials. This also effectively improves the efficiency of comparative testing and enhances the practicality of the device.

[0024] For details, see Figures 2-5As shown, the clamping assembly includes multiple fixing blocks 9, which are evenly distributed below the fixing plate 7 and above the fixing base 3. A transmission assembly is provided between the fixing blocks 9. A connecting seat 12 is fixed to one end of the fixing block 9 near the fixing plate 7 or the fixing base 3. To facilitate the connection of the fixing block 9 to the fixing plate 7 or the fixing base 3 via the connecting seat 12, a connecting bolt 13 is fixed to the end of the connecting seat 12 away from the fixing block 9. The connecting bolt 13 is connected to the fixing plate 7 or the fixing base 3 via a fixing bolt 14. To facilitate the clamping and fixing of materials, two clamping blocks 16 are symmetrically arranged on the inner side of the fixing block 9. The sides of the two clamping blocks 16 that are close to each other are provided with anti-slip textures. The clamping blocks 16 and the fixing plate 7 and the fixing base 3 are connected by a transmission assembly. The fixed block 9 is slidably connected, and a limiting connecting plate 17 is rotatably connected to one side of the fixed block 9 at a position corresponding to the clamping block 16. Through the structural design of the limiting connecting plate 17, the clamping block 16 can be limited. The end of the limiting connecting plate 17 near the clamping block 16 is rotatably connected to the clamping block 16. An adjustment component is provided on the inner side of the connecting seat 12 and the fixed block 9 at a position corresponding to the clamping block 16. In order to further improve the movement limitation of the fixed plate 7, the fixed plates 7 are fixed with limiting sliders 11 at both ends. A fixed slide rod 10 is vertically provided on the inner side of the limiting slider 11. The limiting slider 11 is slidably connected to the fixed slide rod 10. The limiting slider 11 is slidably connected to the fixed frame 4. The fixed slide rod 10 is fixedly connected to the fixed frame 4. The adjustment assembly includes a built-in threaded moving rod 18, which is vertically positioned inside the fixed block 9 and between the two clamping blocks 16. The built-in threaded moving rod 18 is slidably connected to the fixed block 9. To facilitate the movement of the clamping blocks 16 when the built-in threaded moving rod 18 moves, a drive plate 22 is fixed to the lower end of the built-in threaded moving rod 18. A drive groove 23 is provided at the position corresponding to the drive plate 22 on the clamping block 16. The drive plate 22 is located inside the drive groove 23 and is slidably connected to the clamping block 16. To facilitate the movement of the built-in threaded moving rod 18, a transmission is threadedly connected to the inner side of the top end of the built-in threaded moving rod 18. The screw 19 is rotatably connected to the connecting seat 12. To facilitate the rotation of the screw 19, a transmission worm gear 20 is fixed at the top of the screw 19. A transmission worm 21 is rotatably connected to the inner side of the connecting seat 12 at a position corresponding to the transmission worm gear 20. The transmission worm 21 is meshed with the transmission worm gear 20. The transmission assembly includes multiple connecting rods 15. The connecting rods 15 are located between two adjacent fixed blocks 9. Both ends of the connecting rods 15 are fixedly connected to the two fixed blocks 9 respectively. To facilitate the rotation of the transmission worm 21, a transmission rod 24 is rotatably connected to the inner side of the connecting rods 15. The end of the transmission rod 24 is fixedly connected to the transmission worm 21. To facilitate the rotation of the transmission rod 24, a drive worm gear 25 is fixed at the middle position of the transmission rod 24 between the two fixed blocks 9 in the middle. To facilitate the rotation of the drive worm 26, a drive worm 26 is rotatably connected to the inner side of the connecting rod 15 at a position corresponding to the drive worm gear 25. The drive worm 26 is meshed with the drive worm gear 25. One end of the drive worm 26 extends to the outer side of the connecting rod 15. A drive handle 27 is fixed to the end of the drive worm 26 located on the outer side of the connecting rod 15.

[0025] During operation, when the test material needs to be clamped, the material is first placed between the two clamping blocks 16 located on the top fixing block 9 of the fixed base 3. After placing the material, the drive handle 27 is rotated, causing the drive handle 27 to drive the drive worm 26 to rotate. When the drive worm 26 rotates, it drives the transmission rod 24 fixed to the drive worm wheel 25 to rotate simultaneously through the drive worm wheel 25 meshing with it. When the transmission rod 24 rotates, it drives the transmission worm 21 to rotate. When the transmission worm 21 rotates, it drives the transmission screw 19 fixed to the transmission worm wheel 20 to rotate simultaneously through the transmission worm wheel 20 meshing with it. When the transmission screw 19 rotates, it drives the internal threaded moving rod 18 threadedly connected to it to rotate along the transmission... The worm gear 20 moves axially. When the built-in threaded moving rod 18 moves, it drives the drive plate 22 to move simultaneously. When the drive plate 22 moves, it drives the clamping block 16 to slide along the inner side of the fixed block 9, thereby causing the two clamping blocks 16 to move in opposite directions towards each other. When the clamping block 16 moves, the material can be clamped and fixed. Then, the controller body 2 controls the extension end of the hydraulic rod 5 to extend, so that the extension end of the hydraulic rod 5 drives the fixed block 9 fixed to the fixed plate 7 to move through the reinforcing rib 6 and the fixed plate 7. Then, when the fixed block 9 is moved to the inside of the two clamping blocks 16, the top of the material is clamped and fixed by the above method. Then, the tensile test of the material can be performed by starting the hydraulic rod 5.

[0026] Further, see Figures 6-8As shown, to facilitate the limiting of the transparent protective plate 8, positioning slide rods 28 are fixed at both ends of the fixing frame 4 and at positions corresponding to the transparent protective plate 8. The transparent protective plate 8 is slidably connected to the positioning slide rods 28. Insertion components are provided on the inner sides of both ends of the lower end of the transparent protective plate 8. The insertion components include insertion rods 33, which are slidably connected to the transparent protective plate 8. To facilitate limiting the transparent protective plate 8 when it moves to the upper part of the fixing frame 4, a limiting insertion block 32 is fixed at one end of the insertion rod 33 near the fixing frame 4. The limiting insertion block 32 is slidably connected to the transparent protective plate 8. A positioning block is provided at the upper middle part of the fixing frame 4 at a position corresponding to the limiting insertion block 32. The limiting insertion slot 31 and the limiting insertion block 32 are connected to the fixing frame 4 through the limiting insertion slot 31. In order to facilitate the limiting of the limiting insertion block 32, the insertion rod 33 is fitted with an insertion spring 34 on the outer side of one end near the limiting insertion block 32. One end of the insertion spring 34 is fixedly connected to the limiting insertion block 32, and the other end of the insertion spring 34 is fixedly connected to the transparent protective plate 8. In order to facilitate the simultaneous movement of the two insertion rods 33, a movable connecting plate 30 is provided on one side of the lower end of the transparent protective plate 8. The two ends of the movable connecting plate 30 are fixedly connected to the two insertion rods 33 respectively. A lifting handle 29 is fixed in the middle of the movable connecting plate 30 and on the side away from the transparent protective plate 8.

[0027] During operation, after clamping the material and preparing for testing, first pull the lifting handle 29 away from the transparent protective plate 8. This causes the lifting handle 29 to move the connecting rod 33 via the moving connecting plate 30. When the connecting rod 33 moves, it also moves the limiting connecting block 32. When the limiting connecting block 32 moves to the point where it disengages from the limiting connecting groove 31, the limiting connecting block 32 is disconnected from the fixing frame 4. At this point, the transparent protective plate 8 can be moved downwards to provide protection during testing. After the test is completed, the transparent protective plate 8 is moved upwards. When the transparent protective plate 8 moves to the position corresponding to the limiting connecting block 32 and the limiting connecting groove 31, the elasticity of the connecting spring 34 pushes the limiting connecting block 32 to the inside of the limiting connecting groove 31, thus limiting the transparent protective plate 8. Then, the material can be removed.

[0028] In summary, this effectively solves the problem that most existing patents and devices can only test individual materials in practical use. Although they can perform tensile testing on the test materials, when it is necessary to conduct comparative tests on different materials under the same tensile value, the tests need to be repeated many times. This method seriously affects the efficiency of the test and cannot intuitively observe the changes in tensile deformation of different materials.

[0029] Working principle: When it is necessary to clamp the test material, first place the material between the two clamping blocks 16 located at the top of the fixed block 9 of the fixed base 3. Then, after placing the material, rotate the drive handle 27 to drive the drive worm 26 to rotate. When the drive worm 26 rotates, it drives the transmission rod 24 fixed to the drive worm wheel 25 to rotate simultaneously through the drive worm wheel 25 meshing with it. When the transmission rod 24 rotates, it drives the transmission worm 21 to rotate. When the transmission worm 21 rotates, it drives the transmission worm 20 fixed to the drive worm wheel 20 to rotate through the transmission worm wheel 20 meshing with it. The fixed transmission screw 19 rotates simultaneously, driving the internal threaded moving rod 18, which is threadedly connected to it, to move along the axial direction of the transmission worm gear 20. When the internal threaded moving rod 18 moves, it drives the drive plate 22 to move simultaneously. When the drive plate 22 moves, it drives the clamping block 16 to slide along the inner side of the fixed block 9, thereby causing the two clamping blocks 16 to move in opposite directions towards each other. When the clamping blocks 16 move, the material can be clamped and fixed. Then, the controller body 2 controls the extension end of the hydraulic rod 5 to extend, so that the extension end of the hydraulic rod 5 passes through the reinforcing rib 6. The fixing plate 7 moves the fixing block 9 fixed to it. Then, when the fixing block 9 is moved to the inside of the two clamping blocks 16, the top of the material is clamped and fixed using the above method. Then, the hydraulic rod 5 can be activated to perform a tensile test on the material. When preparing to test after clamping the material, first pull the lifting handle 29 away from the transparent protective plate 8. This causes the lifting handle 29 to move the insertion rod 33 via the moving connecting plate 30. When the insertion rod 33 moves, it simultaneously moves the limiting insertion block 32. When the device moves to the point where it disengages from the limiting insertion slot 31, the limiting insertion block 32 is disconnected from the fixing frame 4. At this point, the transparent protective plate 8 can be moved downwards to provide protection during testing. After the test is completed, the transparent protective plate 8 is moved upwards. When the transparent protective plate 8 moves to the position corresponding to the limiting insertion block 32 and the limiting insertion slot 31, the limiting insertion block 32 is pushed to the inside of the limiting insertion slot 31 by the elastic action of the insertion spring 34. The limiting insertion block 32 then limits the transparent protective plate 8, and the material can be removed.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tensile testing device for building construction materials, comprising a base plate (1), a controller body (2) disposed on one side of the base plate (1), a fixing frame (4) fixed to the top of the base plate (1), and a fixing base (3) fixed to the top of the base plate (1) and located inside the fixing frame (4), characterized in that: A hydraulic rod (5) is fixed to the top of the fixed frame (4). The controller body (2) is electrically connected to the hydraulic rod (5). The telescopic end of the hydraulic rod (5) extends to the inner side of the top of the fixed frame (4). A fixed plate (7) is fixed to the telescopic end of the hydraulic rod (5). Two reinforcing ribs (6) are symmetrically fixed to the outer side of the end of the hydraulic rod (5) near the fixed plate (7). The end of the reinforcing rib (6) away from the hydraulic rod (5) is fixedly connected to the fixed plate (7). A clamping assembly is provided at the lower end of the fixed plate (7) and the top of the fixed base (3) for clamping and fixing the material. A transparent protective plate (8) is provided on one side of the fixed frame (4). The transparent protective plate (8) is slidably connected to the fixed frame (4).

2. The tensile testing device for building construction materials according to claim 1, characterized in that: The clamping assembly includes multiple fixing blocks (9), which are evenly arranged below the fixing plate (7) and above the fixing base (3). A transmission assembly is provided between the multiple fixing blocks (9). A connecting seat (12) is fixed to one end of each fixing block (9) near the fixing plate (7) or the fixing base (3), and a connecting bolt (13) is fixed to the other end of the connecting seat (12) away from the fixing block (9). The connecting bolt (13) is connected to the fixing plate (7) or the fixing base (3) through a fixing bolt (14). The base (3) is connected to the fixed block (9). Two clamping blocks (16) are symmetrically arranged on the inner side of the fixed block (9). The clamping blocks (16) are slidably connected to the fixed block (9). A limiting connecting plate (17) is rotatably connected to one side of the fixed block (9) and at the position corresponding to the clamping block (16). The end of the limiting connecting plate (17) close to the clamping block (16) is rotatably connected to the clamping block (16). An adjustment component is provided on the inner side of the connecting base (12) and the fixed block (9) and at the position corresponding to the clamping block (16).

3. The tensile testing device for building construction materials according to claim 2, characterized in that: The adjustment assembly includes a built-in threaded moving rod (18), which is vertically arranged inside the fixed block (9) and located in the middle of the two clamping blocks (16). The built-in threaded moving rod (18) is slidably connected to the fixed block (9). A drive plate (22) is fixed at the lower end of the built-in threaded moving rod (18). A drive groove (23) is opened at the position corresponding to the drive plate (22) of the clamping block (16). The drive plate (22) is located inside the drive groove (23). The drive plate (22) is slidably connected to the clamping block (16). A transmission screw (19) is threadedly connected to the inner side of the top end of the built-in threaded moving rod (18). The transmission screw (19) is rotatably connected to the connecting seat (12).

4. The tensile testing device for building construction materials according to claim 3, characterized in that: The top end of the transmission screw (19) is fixed with a transmission worm wheel (20), and a transmission worm (21) is rotatably connected to the inner side of the connecting seat (12) at a position corresponding to the transmission worm wheel (20). The transmission worm (21) meshes with the transmission worm wheel (20).

5. The tensile testing device for building construction materials according to claim 4, characterized in that: The transmission assembly includes multiple connecting rods (15), which are positioned between two adjacent fixed blocks (9). The two ends of the connecting rods (15) are fixedly connected to the two fixed blocks (9) respectively. A transmission rod (24) is rotatably connected to the inner side of the connecting rods (15), and the end of the transmission rod (24) is fixedly connected to the transmission worm gear (21).

6. The tensile testing device for building construction materials according to claim 5, characterized in that: A drive worm gear (25) is fixed at the middle position of the transmission rod (24) located between the two fixed blocks (9) in the middle. A drive worm (26) is rotatably connected to the inner side of the connecting rod (15) and at the position corresponding to the drive worm gear (25). The drive worm (26) is meshed with the drive worm gear (25). One end of the drive worm (26) extends to the outer side of the connecting rod (15). A drive handle (27) is fixed to the end of the drive worm (26) located on the outer side of the connecting rod (15).

7. The tensile testing device for building construction materials according to claim 1, characterized in that: Both ends of the fixed plate (7) are fixed with limit sliders (11). A fixed slide rod (10) is vertically arranged on the inner side of the limit slider (11). The limit slider (11) is slidably connected to the fixed slide rod (10). The limit slider (11) is slidably connected to the fixed frame (4). The fixed slide rod (10) is fixedly connected to the fixed frame (4).

8. The tensile testing device for building construction materials according to claim 1, characterized in that: Positioning slide rods (28) are fixed at both ends of the fixed frame (4) and at positions corresponding to the transparent protective plate (8). The transparent protective plate (8) is slidably connected to the positioning slide rods (28). Insertion components are provided on the inner sides of both ends of the lower end of the transparent protective plate (8).

9. A tensile testing device for building construction materials according to claim 8, characterized in that: The plug-in assembly includes a plug-in rod (33), which is slidably connected to the transparent protective plate (8). A limiting plug-in block (32) is fixed to one end of the plug-in rod (33) near the fixed frame (4). The limiting plug-in block (32) is slidably connected to the transparent protective plate (8). A limiting plug-in groove (31) is provided at the upper middle position of the fixed frame (4) and at the position corresponding to the limiting plug-in block (32). The limiting plug-in block (32) is plugged into the fixed frame (4) through the limiting plug-in groove (31). A plug-in spring (34) is sleeved on the outer side of one end of the plug-in rod (33) near the limiting plug-in block (32). One end of the plug-in spring (34) is fixedly connected to the limiting plug-in block (32), and the other end of the plug-in spring (34) is fixedly connected to the transparent protective plate (8).

10. A tensile testing device for building construction materials according to claim 9, characterized in that: A movable connecting plate (30) is provided on one side of the lower end of the transparent protective plate (8). The two ends of the movable connecting plate (30) are respectively fixedly connected to the two plug rods (33). A lifting handle (29) is fixed on the middle part of the movable connecting plate (30) and on the side away from the transparent protective plate (8).

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