Building material tensile property detection device

Abstract

The utility model relates to a building material tensile property detection device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a support, the top of the support is slidably connected with an extension frame, the outer side of the support is fixedly connected with a stabilizing rod, the ends, close to each other, of the bottom plate and the extension frame are fixedly connected with discs, and the interiors of the discs are fixedly connected with bearing discs. A first bevel gear is rotationally connected into the bearing disc, a second bevel gear is connected to the bottom of the first bevel gear in an engaged mode, a cover frame is slidably connected to the top of the first bevel gear, a moving frame is slidably connected into the cover frame, and an extrusion plate is rotationally connected into the moving frame. The clamping device has the beneficial effects that through the design of the extrusion plate and the movable frame, materials with different diameters can be rapidly clamped, and the overall practicability is greatly improved.

Description

Technical Field

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

[0002] In architectural design, the selection of building materials is a crucial aspect that affects both the quality and cost of the building. When selecting materials, tensile strength testing must be conducted. Tensile strength is the critical value at which a metal transitions from uniform plastic deformation to localized concentrated plastic deformation. It is also the maximum load-bearing capacity of a metal under static tensile conditions. Tensile strength characterizes the resistance of a material to maximum uniform plastic deformation. Beyond the tensile strength, the metal begins to exhibit necking, i.e., concentrated deformation occurs. For brittle materials without uniform plastic deformation, it reflects the material's fracture resistance.

[0003] In the existing technology, tensile strength testing machines generally only use traditional screws and clamps for clamping and fixing. Due to the relatively simple structure, the clamping of the test material is not stable enough, and it is very easy to loosen during tensile testing. This is not conducive to better testing operations, hinders the normal testing of the material, and is not conducive to better use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a tensile performance testing device for building materials. Through an overall design, the extrusion plate and the moving frame are controlled to clamp the bottom and top of the material respectively, while the V-shaped receiving groove design can be adapted to different materials.

[0005] This utility model provides the following technical solution: a tensile performance testing device for building materials, comprising: a base plate, a bracket fixedly connected to the top of the base plate, an extension frame slidably connected to the top of the bracket, a stabilizing rod fixedly connected to the outer side of the bracket, a disc fixedly connected to one end of the base plate and the extension frame, a receiving plate fixedly connected inside the disc, a first bevel gear rotatably connected inside the receiving plate, a second bevel gear meshing with the bottom of the first bevel gear, a cover frame slidably connected to the top of the first bevel gear, a movable frame slidably connected inside the cover frame, and a pressing plate rotatably connected inside the movable frame.

[0006] As a preferred embodiment of this utility model, a ring track is fixedly connected to the surface of the first bevel gear. The ring track has a spiral structure design, and the movable frame extends into the interior of the ring track.

[0007] As a preferred embodiment of this utility model, a through groove is provided at the top of the cover frame, the movable frame extends to the outside of the through groove, a circular groove is provided in the middle of the inside of the cover frame, and a limiting groove is provided on the outside of the cover frame.

[0008] As a preferred embodiment of this utility model, a first receiving groove is provided at both ends of the top and bottom of the extrusion plate, and a second receiving groove is provided at the bottom of the movable frame. The interior of the first receiving groove and the second receiving groove are designed in a V-shape.

[0009] As a preferred embodiment of this utility model, a sleeve is fixedly connected to the left end of the inner side of the extension frame, a connecting cylinder is slidably connected inside the sleeve, a support cylinder is slidably connected inside the connecting cylinder, the support cylinder extends into the interior of the bracket, and a sliding rod is slidably connected to the right end of the inner side of the bracket, the sliding rod extends into the interior of the extension frame.

[0010] As a preferred embodiment of this utility model, a motor is fixedly connected inside the sleeve, a lead screw is fixedly connected to the output end of the motor, the lead screw extends into the inside of the connecting cylinder, a collar is fixedly connected to the top of the inner side of the connecting cylinder, and a threaded sleeve is rotatably connected to the outside of the collar. The lead screw and the threaded sleeve are connected by a threaded connection.

[0011] As a preferred embodiment of this utility model, a threaded groove is provided on the inner wall of the support cylinder at a position corresponding to the threaded sleeve, and a locking block is symmetrically fixed to the outside of the support cylinder, and a sliding groove is provided on the inner wall of the connecting cylinder at a position corresponding to the locking block.

[0012] The beneficial effects of this utility model are as follows: through the meshing of the second bevel gear and the first bevel gear, the spiral design of the annular track generates a thrust on the moving frame when it rotates, thereby bringing the moving frames closer together. When the moving frame contacts the metal, the bottom end of the metal will press the extrusion plate. Subsequently, the extrusion plate rotates inside the moving frame, so that both the top and bottom ends of the extrusion plate are in contact with the metal. Since the two sides of the V-groove form effective support for the metal, the metal can be well fixed in both the axial and radial directions. At the same time, the V-shaped design of the V-groove allows it to accommodate metals of different diameters to a certain extent, which greatly increases the flexibility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the disc of this utility model;

[0015] Figure 3 This is a schematic diagram of the cover frame structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the support structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the bracket of this utility model;

[0018] In the diagram: 1. Base plate; 2. Bracket; 3. Extension frame; 4. Stabilizing bar; 5. Disc; 6. Receiving plate; 7. First bevel gear; 8. Second bevel gear; 9. Cover frame; 10. Moving frame; 11. Extrusion plate; 12. Circular track; 13. Through groove; 14. Circular groove; 15. Limiting groove; 16. Sleeve; 17. Connecting cylinder; 18. Support cylinder; 19. Lead screw; 20. Threaded sleeve; 21. Threaded groove. Detailed Implementation

[0019] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example:

[0021] like Figures 1 to 5 As shown, a tensile performance testing device for building materials includes: a base plate 1, a bracket 2 fixedly connected to the top of the base plate 1, an extension frame 3 slidably connected to the top of the bracket 2, a stabilizing rod 4 fixedly connected to the outer side of the bracket 2, a disc 5 fixedly connected to the end of the base plate 1 and the extension frame 3 respectively, a receiving plate 6 fixedly connected inside the disc 5, a first bevel gear 7 rotatably connected inside the receiving plate 6, a second bevel gear 8 meshing with the bottom of the first bevel gear 7, a cover frame 9 slidably connected to the top of the first bevel gear 7, a movable frame 10 slidably connected inside the cover frame 9, and a pressing plate 11 rotatably connected inside the movable frame 10. By placing the base plate 1 at a designated position and inserting metal into the middle of the disc 5, the metal material is made to be in a straight state. Then, the movable frames 10 are brought closer together, which in turn drives the pressing plates 11 to bring closer together, thus wrapping and fixing the top and bottom ends of the metal.

[0022] In this embodiment, an annular track 12 is fixedly connected to the surface of the first bevel gear 7. The annular track 12 has a spiral structure design. The moving frame 10 extends into the interior of the annular track 12. By driving the second bevel gear 8 to rotate by the motor, the second bevel gear 8 meshes with the first bevel gear 7, and then the first bevel gear 7 rotates, driving the annular track 12 to rotate. Due to its spiral design, it will generate a thrust on the moving frame 10 when rotating, thereby making the moving frames 10 move closer to each other. When the moving frame 10 contacts the metal, the bottom end of the metal will press the extrusion plate 11. Then the extrusion plate 11 rotates inside the moving frame 10 and is in a straight state, so that both the top and bottom ends of the extrusion plate 11 are in contact with the metal.

[0023] In this embodiment, a through groove 13 is provided on the top of the cover frame 9, and the movable frame 10 extends to the outside of the through groove 13. A circular groove 14 is provided in the middle of the inside of the cover frame 9, and a limiting groove 15 is provided on the outside of the cover frame 9. Through the design of the circular groove 14, the metal is wrapped and limited when it enters the inside of the receiving plate 6. As the movable frame 10 moves, the design of the limiting groove 15 and the through groove 13 enables the movable frame 10 to move along a predetermined route.

[0024] In this embodiment, the top and bottom ends of the extrusion plate 11 are provided with first receiving grooves, and the bottom end of the moving frame 10 is provided with a second receiving groove. The interior of the first receiving groove and the second receiving groove are designed with a V-shaped structure. Through the V-shaped design of the first receiving groove and the second receiving groove, when the metal is clamped in the V-shaped groove, the two sides of the V-shaped groove form effective support for the metal, so the metal can be well fixed in the axial and radial directions. This fixing method prevents the metal from moving or rotating during the processing, thereby ensuring the stability and accuracy of the processing. At the same time, the V-shaped design of the V-shaped groove allows it to accommodate metals of different diameters to a certain extent, which greatly increases the flexibility.

[0025] In this embodiment, a sleeve 16 is fixedly connected to the left end of the inner side of the extension frame 3. A connecting cylinder 17 is slidably connected inside the sleeve 16. A support cylinder 18 is slidably connected inside the connecting cylinder 17. The support cylinder 18 extends into the interior of the bracket 2. A sliding rod is slidably connected to the right end of the inner side of the bracket 2. The sliding rod extends into the interior of the extension frame 3. A motor is fixedly connected inside the sleeve 16. A lead screw 19 is fixedly connected to the output end of the motor. The lead screw 19 extends into the interior of the connecting cylinder 17. A collar is fixedly connected to the top end of the inner side of the connecting cylinder 17. A threaded sleeve 20 is rotatably connected to the outside of the collar. The lead screw 19 and the threaded sleeve 20 are connected by a threaded connection. By driving the motor, the output end of the motor rotates the lead screw 19. Then, the lead screw 19 will have a threaded reaction with the inner wall of the threaded sleeve 20. Subsequently, the threaded sleeve 20 and the lead screw 19 move away from each other, so that the connecting cylinder 17 slides outward inside the sleeve 16, completing the height extension and thus realizing the tensile test.

[0026] In this embodiment, a threaded groove 21 is provided on the inner wall of the support cylinder 18 at a position corresponding to the threaded sleeve 20. A locking block is symmetrically fixed to the outside of the support cylinder 18. A sliding groove is provided on the inner wall of the connecting cylinder 17 at a position corresponding to the locking block. As the threaded sleeve 20 and the threaded groove 21 mesh with each other, the connecting cylinder 17 rises inside the support cylinder 18, thereby achieving three-level adjustment and further improving the height adjustment to accommodate taller metal materials.

[0027] Implementation Plan: By placing the base plate 1 at the designated position, the metal is inserted into the center of the disc 5, thus ensuring the metal material is in a straight position. The motor drives the second bevel gear 8 to rotate, which then meshes with the first bevel gear 7. The first bevel gear 7 then rotates, simultaneously driving the annular track 12 to rotate. Due to its spiral design, the track exerts a thrust on the moving frame 10 during rotation, causing the moving frames 10 to move closer together. When the moving frame 10 contacts the metal, the bottom of the metal presses against the extrusion plate 11. The extrusion plate 11 then rotates inside the moving frame 10, remaining in a straight position, ensuring that both the top and bottom of the extrusion plate 11 are in contact with the metal. The two sides of the V-groove provide effective support to the metal. Therefore, the metal can be well fixed in both the axial and radial directions. This fixing method prevents the metal from moving or rotating during processing, thus ensuring the stability and accuracy of processing. At the same time, the V-shaped design of the V-groove allows it to accommodate metals of different diameters to a certain extent, greatly increasing flexibility. By driving the motor, the output end of the motor rotates the lead screw 19. Then, the lead screw 19 will react with the inner wall of the threaded sleeve 20. Subsequently, the threaded sleeve 20 and the lead screw 19 move away from each other, realizing the sliding of the connecting cylinder 17 inside the sleeve 16 outward. As the threaded sleeve 20 and the threaded groove 21 mesh with each other, the connecting cylinder 17 rises inside the support cylinder 18, thereby realizing three-level adjustment, completing the height extension, and then realizing tensile testing.

[0028] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for detecting tensile properties of a building material, characterized in that The utility model relates to a kind of extendable support frame, including: Bottom plate, the top of bottom plate is fixedly connected with support, the top of support is slidably connected with extension frame, the outer side of support is fixedly connected with stabilizer bar, the end close to extension frame of bottom plate and extension frame is fixedly connected with disc, the inside of disc is fixedly connected with receiving disc, the inside of receiving disc is rotatably connected with first bevel gear, the bottom of first bevel gear is meshedly connected with second bevel gear, the top of first bevel gear is slidably connected with cover frame, the inside of cover frame is slidably connected with moving frame, the inside of moving frame is rotatably connected with extrusion plate.

2. The building material tensile property detection device according to claim 1, characterized in that, The surface of first bevel gear is fixedly connected with annular track, annular track is designed in spiral shape, moving frame extends to the inside of annular track.

3. The building material tensile property detection device according to claim 1, characterized in that, The top of cover frame is provided with through slot, moving frame extends to the outside of through slot, the middle of cover frame inside is provided with circular groove, the outside of cover frame is provided with limiting slot.

4. The building material tensile property detection device according to claim 1, characterized in that, The two ends of extrusion plate top and bottom are provided with first accommodating slot, the bottom end of moving frame is provided with second accommodating slot, the inside of first accommodating slot and second accommodating slot is designed in V shape.

5. The building material tensile property detection device according to claim 1, characterized in that, The left end of extension frame inner side is fixedly connected with sleeve, the inside of sleeve is slidably connected with connecting barrel, the inside of connecting barrel is slidably connected with support barrel, support barrel extends to the inside of support, the right end of support inner side is slidably connected with slide bar, slide bar extends to the inside of extension frame.

6. The building material tensile property detection device according to claim 5, characterized in that, The inside of sleeve is fixedly connected with motor, the output end of motor is fixedly connected with screw rod, screw rod extends to the inside of connecting barrel, the top of connecting barrel inner side is fixedly connected with sleeve ring, the outside of sleeve ring is rotatably connected with threaded sleeve, the connection mode of screw rod and threaded sleeve is screw connection.

7. The building material tensile property testing device of claim 6, wherein, Corresponding position on the inner side wall of support barrel is provided with screw groove, the outside of support barrel is fixedly connected with clamping block symmetrically, corresponding position on the inner side wall of connecting barrel is provided with sliding slot.

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