Tension test device for building material detection

Abstract

The utility model relates to the technical field of building material detection, and discloses a tension test device for building material detection, which comprises a test cabinet and a protective cover fixedly arranged in the test cabinet, and is characterized in that firstly, two ends of a building material to be tested are respectively fixedly clamped at the lower end of a threaded rod and the upper end of a placement block through clamping assemblies; after the building materials are clamped and fixed, a motor can drive a threaded rod to rotate, a clamping assembly at the lower end of the threaded rod is driven to move upwards, and along with rotation of the threaded rod, the motor can move upwards along fixing plates on the two sides through a connecting plate; the clamping assembly at the lower end of the threaded rod cannot cause upward bouncing of the device due to sudden disappearance of force at the lower end, when the tension test device for building material detection is actually used, tension detection can be performed on a building material through rotation of the threaded rod, and when the test material reaches a critical point and is suddenly broken, the device is not prone to bouncing. And displacement of the whole device caused by tensile strength is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building material testing technology, specifically to a tensile testing device for building material testing. Background Technology

[0002] Building materials are the various materials used in construction projects. They are diverse and can be categorized into inorganic materials (including metallic and non-metallic materials), organic materials (including biomass materials, synthetic polymers, and asphalt materials), and composite materials (including asphalt concrete and polymer concrete), which are generally composed of inorganic non-metallic materials and organic materials. The quality of building materials is extremely important in construction, therefore tensile testing is necessary. This paper relates to a tensile testing device for building materials.

[0003] For example, a tensile testing device for building materials, as disclosed in CN218036019U, includes a base, a shell, a door panel, a top plate, a rod, a mounting part a, a fixing part b, a pad, a spring, a clamping mechanism, bolts, and legs. The shell connects to the base, the top plate connects to the shell, the door panel connects to the shell, and the legs connect to the base. The rod connects the base and the top plate. The mounting part a slides to connect to the rod. The fixing part a connects to the mounting part a. The fixing part b is connected to the fixing part a. The clamping mechanism rotatably connects to the fixing part b. The mounting part b slides to connect to the rod. The mounting part b sequentially connects to the fixing part, the fixing part b, and the clamping mechanism. The base is equipped with a cylinder, which connects to the mounting part a. The pad slides to connect to the rod, and the spring is sleeved on the outside of the rod and connects to the pad and the top plate. This utility model allows for the replacement of different clamping mechanisms, making the device highly adaptable. The pad and spring prevent damage to the device and extend its service life.

[0004] The aforementioned patent allows for the replacement of different clamping mechanisms, making the device highly adaptable. The pads and springs prevent damage to the device and extend its service life. However, in actual use, when the test material is pulled to the critical point and breaks, the tension in the displacement direction will generate a corresponding force due to the sudden disappearance of the force at the other end, which may lead to inaccurate test results. Furthermore, the material breakage will produce flying debris, which may cause injury to the test personnel, resulting in certain inconveniences in actual use.

[0005] Therefore, we proposed a tensile testing device for building materials testing in order to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a tensile testing device for testing building materials, in order to solve the problems mentioned in the background art. In actual use, when the test material is pulled to the critical point and breaks, the tensile force in the displacement direction will generate a corresponding force due to the sudden disappearance of the force at the other end, which may lead to inaccurate test results. In addition, when the material breaks, it will produce flying debris, which may cause injury to the test personnel. These issues are inconvenient in actual use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tensile testing device for building materials, comprising a test cabinet and a protective cover fixedly installed inside the test cabinet. A motor is provided at the upper end of the test cabinet, and fixed plates are fixedly installed on both sides of the upper end of the test cabinet. A connecting plate is slidably installed on both fixed plates. The motor is fixedly installed on the inner wall of the upper end of the connecting plate. A threaded rod is fixedly installed at the output end of the motor. The threaded rod is threadedly connected to the test cabinet. A placement block is fixedly installed on the inner wall of the protective cover. A clamping assembly is provided at the lower end of the threaded rod and the upper end of the placement block. A cleaning assembly is provided on the side wall of the threaded rod.

[0008] Preferably, the protective cover has a sliding groove inside, and a movable door is slidably installed in the sliding groove.

[0009] Preferably, the upper end of the placement block is provided with a placement groove, and one side of the placement groove is provided with a recess.

[0010] Preferably, the clamping assembly includes a connecting block fixedly installed in the placement groove. Connecting grooves are provided on both sides of the connecting block, and sliders are slidably installed in the connecting grooves. Connecting rods are threadedly connected to both side walls of the connecting block, and the connecting rods are rotatably connected to the sliders. Clamping blocks are fixedly installed on the side walls of the sliders.

[0011] Preferably, a fixing rod is fixedly installed at one end of the threaded rod, and the fixing rod is rotatably connected to one of the connecting blocks.

[0012] Preferably, the cleaning assembly includes a crossbar fixedly installed on the side wall of the threaded rod, a telescopic rod fixedly installed on one end of the side wall of the crossbar, a spring fixedly installed between the inner walls of both sides of the telescopic rod, and a brush fixedly installed at the lower end of the telescopic rod, the brush being slidably connected in the placement groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. First, the building material to be tested is clamped at both ends to the lower end of the threaded rod and the upper end of the placement block using the clamping assembly. After clamping and fixing, the threaded rod is rotated by the motor, which moves the clamping assembly at the lower end of the threaded rod upward. As the threaded rod rotates, the motor moves upward along the fixed plates on both sides through the connecting plate. When the building material is pulled to the point of breakage, the clamping assembly at the lower end of the threaded rod will not cause the device to bounce upward due to the sudden disappearance of the force at the lower end. In actual use, this tensile testing device for building materials can perform tensile testing on building materials by rotating the threaded rod. When the test material reaches the critical point and suddenly breaks, the device as a whole will not be displaced due to the breaking force.

[0015] 2. With the cooperation of the slide, movable door, connecting block, connecting groove, slider, clamping block, connecting rod, placement block, placement groove, groove, crossbar, telescopic rod, brush and spring, the device clamps and fixes the two ends of the building material respectively through the clamping components. After fixing, the movable door can intercept the fragments generated by the breakage of the test material to prevent the fragments from flying. The debris that falls into the placement groove can be swept into the groove by the brush driven by the rotation of the threaded rod and collected. It has a good protective effect and also facilitates the subsequent cleaning of the waste debris generated by the test. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall longitudinal cross-sectional three-dimensional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall transverse cross-sectional three-dimensional structure of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged 3D structural diagram at point A.

[0020] In the diagram: 1. Test cabinet; 2. Protective cover; 21. Slide rail; 22. Movable door; 3. Motor; 31. Threaded rod; 32. Connecting plate; 33. Fixing plate; 34. Fixing rod; 4. Clamping assembly; 41. Connecting block; 42. Connecting groove; 43. Slider; 44. Clamping block; 45. Connecting rod; 5. Placement block; 51. Placement groove; 52. Groove; 6. Cleaning assembly; 61. Crossbar; 62. Telescopic rod; 63. Brush; 64. Spring. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figure 1 - Figure 3 A tensile testing device for building materials includes a test cabinet 1 and a protective cover 2 fixedly installed inside the test cabinet 1. A motor 3 is installed at the upper end of the test cabinet 1. Fixing plates 33 are fixedly installed on both sides of the upper end of the test cabinet 1. A connecting plate 32 is slidably installed on the two fixing plates 33. The motor 3 is fixedly installed on the inner wall of the upper end of the connecting plate 32. A threaded rod 31 is fixedly installed at the output end of the motor 3. The threaded rod 31 is threadedly connected to the test cabinet 1. A placement block 5 is fixedly installed on the inner wall of the protective cover 2. A clamping assembly 4 is provided at the lower end of the threaded rod 31 and the upper end of the placement block 5.

[0023] In this embodiment: When using the device, the building material to be tested can be clamped at both ends by the clamping assembly 4 to the lower end of the threaded rod 31 and the upper end of the placement block 5 respectively. After clamping and fixing, the motor 3 can drive the threaded rod 31 to rotate, which will drive the clamping assembly 4 at the lower end of the threaded rod 31 to move upward. As the threaded rod 31 rotates, the motor 3 can move upward along the fixing plates 33 on both sides through the connecting plate 32 to perform a tensile test on the building material. When the building material is pulled to the point of breakage, the clamping assembly 4 at the lower end of the threaded rod 31 will not cause the device to bounce upward due to the sudden disappearance of the force at the lower end. In actual use, the tensile testing device for building material testing can perform tensile testing on the building material by rotating the threaded rod 31. When the test material reaches the critical point and suddenly breaks, the device as a whole will not be displaced due to the breaking force.

[0024] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 2 - Figure 4 The protective cover 2 has a sliding groove 21 inside, and a movable door 22 is slidably installed in the sliding groove 21. The protective cover 2 can be opened and closed by sliding the movable door 22 in the sliding groove 21. The movable door 22 is made of transparent material, which makes it easy to observe the inside of the device during testing.

[0025] The upper end of the placement block 5 is provided with a placement groove 51, and a groove 52 is provided on one side of the placement groove 51. The placement groove 51 can concentrate the debris generated by the fracture of the test material in the placement groove 51, and the groove 52 facilitates the cleaning of the debris.

[0026] The clamping assembly 4 includes a connecting block 41 fixedly installed in the placement groove 51. Connecting grooves 42 are provided on both sides of the connecting block 41, and sliders 43 are slidably installed in the connecting grooves 42.

[0027] Both sides of the connecting block 41 are threaded with connecting rods 45, which are rotatably connected to the slider 43. The side walls of the slider 43 are fixedly equipped with clamping blocks 44. The position of the clamping blocks 44 can be adjusted by rotating the connecting rods 45 to clamp and fix the test material. One end of the threaded rod 31 is fixedly equipped with a fixing rod 34, which is rotatably connected to one of the connecting blocks 41. When the threaded rod 31 rotates, it can drive the upper connecting block 41 to move upward without rotating.

[0028] The cleaning assembly 6 includes a crossbar 61 fixedly installed on the side wall of the threaded rod 31. A telescopic rod 62 is fixedly installed on one side wall of the crossbar 61. A spring 64 is fixedly installed between the inner walls of both sides of the telescopic rod 62. A brush 63 is fixedly installed at the lower end of the telescopic rod 62. The brush 63 is slidably connected in the placement groove 51. When the threaded rod 31 rotates, it can drive the brush 63 to rotate along the placement groove 51, sweeping the debris in the placement groove 51 into the groove 52 for collection.

[0029] In this embodiment: When using this device to perform tensile testing on building materials, the lower end of the material to be tested can be placed between two clamping blocks 44. The connecting rods 45 on both sides are rotated to drive the slider 43 to slide along the connecting groove 42. During the sliding, the clamping blocks 44 clamp and fix the two sides of the building material. After fixing the lower end, the upper end of the building material is clamped and fixed by the same operation. After the upper end is also fixed, the movable door 22 can be pulled to slide along the slide groove 21 to close the opening end of the protective cover 2. After it is closed, the motor 3 can be used to perform tensile testing on the building material. During the test, the flying debris generated by the material breaking can be blocked by the annular chamber formed by the protective cover 2 and the movable door 22. During the tensile testing, the threaded rod 31 rotates to drive the... The crossbar 61 and telescopic rod 62 on the side wall rotate together. The spring 64 inside the telescopic rod 62 ensures that the brush 63 at the lower end is always in contact with the inner wall of the placement groove 51. When the crossbar 61 rotates, it drives the brush 63 to clean the inside of the placement groove 51, sweeping the debris into the groove 52 for centralized collection. When the device is in use, the clamping assembly 4 clamps and fixes both ends of the building material. After fixing, the movable door 22 can intercept the fragments generated by the breakage of the test material to prevent the fragments from splashing. The debris that falls into the placement groove 51 can be swept away by the brush 63 driven by the rotation of the threaded rod 31 and swept into the groove 52 for centralized collection. It has a good protective effect and also facilitates the subsequent cleaning of the waste debris generated by the test.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tensile testing device for building materials, comprising a test cabinet (1) and a protective cover (2) fixedly installed inside the test cabinet (1), wherein a motor (3) is provided at the upper end of the test cabinet (1), characterized in that: The test cabinet (1) is fixedly installed on both sides of the upper end with a fixing plate (33). A connecting plate (32) is slidably installed on both fixing plates (33). The motor (3) is fixedly installed on the inner wall of the upper end of the connecting plate (32). A threaded rod (31) is fixedly installed at the output end of the motor (3). The threaded rod (31) is threadedly connected to the test cabinet (1). A placement block (5) is fixedly installed on the inner wall of the protective cover (2). A clamping assembly (4) is provided at the lower end of the threaded rod (31) and the upper end of the placement block (5). A cleaning assembly (6) is provided on the side wall of the threaded rod (31).

2. The tensile testing device for building materials according to claim 1, characterized in that: The protective cover (2) has a sliding groove (21) inside, and a movable door (22) is slidably installed in the sliding groove (21).

3. The tensile testing device for building materials according to claim 1, characterized in that: The upper end of the placement block (5) is provided with a placement groove (51), and a groove (52) is provided on one side of the placement groove (51).

4. The tensile testing device for building material testing according to claim 3, characterized in that: The clamping assembly (4) includes a connecting block (41) fixedly installed in the placement groove (51). Connecting grooves (42) are provided on both sides of the connecting block (41). A slider (43) is slidably installed in each of the connecting grooves (42). Connecting rods (45) are threadedly connected to both side walls of the connecting block (41). The connecting rods (45) are rotatably connected to the sliders (43). Clamping blocks (44) are fixedly installed on the side walls of the sliders (43).

5. The tensile testing device for building material testing according to claim 4, characterized in that: A fixing rod (34) is fixedly installed at one end of the threaded rod (31), and the fixing rod (34) is rotatably connected to one of the connecting blocks (41).

6. The tensile testing device for building material testing according to claim 5, characterized in that: The cleaning assembly (6) includes a crossbar (61) fixedly installed on the side wall of the threaded rod (31), a telescopic rod (62) fixedly installed on one side wall of the crossbar (61), a spring (64) fixedly installed between the inner walls of both sides of the telescopic rod (62), and a brush (63) fixedly installed at the lower end of the telescopic rod (62), the brush (63) being slidably connected in the placement groove (51).

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