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CN-224231509-U - Bending resistance testing device for cold-formed thin-wall section steel

CN224231509UCN 224231509 UCN224231509 UCN 224231509UCN-224231509-U

Abstract

The utility model provides a bending resistance testing device of cold-formed thin-wall steel, which relates to the field of steel testing devices and comprises a shell, wherein the right end of the shell is hinged with a positioning table, the left end of the shell is internally provided with a pressing assembly, the center of the shell is symmetrically connected with a plurality of hydraulic cylinders up and down, the movable ends of the hydraulic cylinders extend into the positioning table, the left end of the shell is connected with a frame, the frame is internally connected with crisscrossed steel wires, the steel wires are in a grid shape, and rubber blocks are connected in steel wire grids. The bending resistance testing device of the cold-formed thin-wall steel is provided with a frame, steel wires and rubber blocks to form a blocking protection net cover. The steel to be tested is enclosed by the shell, the positioning table and the blocking protective net cover, and the steel is isolated from the outside in the testing process, so that the protective effect is achieved. And the injury to workers caused by the breakage of the steel bars is avoided. Through rubber piece and elastic membrane cooperation, the piece that produces the fracture is buffered, has improved the security.

Inventors

  • WANG DILONG

Assignees

  • 浙江圣鑫建设有限公司

Dates

Publication Date
20260512
Application Date
20250623

Claims (4)

  1. 1. The bending resistance testing device for the cold-formed thin-wall steel is characterized by comprising a shell (1), wherein the right end of the shell (1) is hinged with a positioning table (2), a pressing assembly is arranged in the left end of the shell (1), a plurality of hydraulic cylinders (3) are symmetrically connected up and down at the center of the shell (1), the movable ends of the hydraulic cylinders (3) extend into the positioning table (2), the left end of the shell (1) is connected with a frame (4), crisscrossed steel wires (41) are connected in the frame (4), the steel wires (41) are in a grid shape, and rubber blocks (42) are connected in the grids of the steel wires (41); The device also comprises an elastic membrane (7), wherein the elastic membrane (7) is arranged in the shell (1) and is horizontally arranged, and a glue coating is coated at the bottom of the elastic membrane (7); The positioning table (2) is used for fixing the end part of steel, and the positioning table (2) covers two thirds of the area of the right port of the shell (1).
  2. 2. The bending test device for the cold-formed thin-wall profile steel is characterized in that a chute is formed in the left side of the positioning table (2), a base (22) is connected to the center of the chute, two screws (25) are symmetrically pivoted to the base (22), two base plates (23) are slidably matched in the chute, the base (22) is located between the two base plates (23), horizontal threads of the screws (25) penetrate through the base plates (23), a motor (24) is connected to the left side of the positioning table (2), and a transmission shaft of the motor (24) is connected with the end portions of the screws (25).
  3. 3. The bending test device for the cold-formed thin-wall profile steel is characterized in that the pressing assembly comprises a pressing plate (5), a rack (6), an elastic membrane (7) and a pressure detection module (8), wherein the pressing plate (5) is in a concave shape, the bottom of the pressing plate (5) is clamped with the steel, the pressure detection module (8) is arranged at the top of the pressing plate (5), the lower end of the rack (6) is connected to the top of the pressure detection module (8), the upper end of the rack (6) vertically extends upwards to the upper side of the shell (1), a driving gear (11) is connected to the top of the shell (1), and the driving gear (11) is meshed with the rack (6).
  4. 4. The bending resistance testing device of the cold-formed thin-walled steel according to claim 3, wherein the left side of the positioning table (2) is connected with a bar (21), the right end of the shell (1) is hinged with the bar (21), and a spring (26) is connected between the two base plates (23).

Description

Bending resistance testing device for cold-formed thin-wall section steel Technical Field The utility model relates to the technical field of steel testing devices, in particular to a bending resistance testing device for cold-formed thin-wall steel. Background With the development of modern industrial technology, a building house can be manufactured in batches as a machine production. The prefabricated house components are transported to the construction site to be assembled. At present, the steel is various in types, including cold-formed thin-wall steel, and sampling detection is needed after the steel is produced. When bending the steel to the limit, the steel is easy to break and spring out, the test work is exposed outside, and the broken steel is easy to cause injury to surrounding test staff. When one end of the steel is bent, the other end is stressed and easily deviates, so that the accuracy of the test result is affected. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a bending resistance testing device for cold-formed thin-wall steel, which solves the problems in the prior art. (II) technical scheme The bending resistance testing device for the cold-formed thin-wall steel comprises a shell, wherein the right end of the shell is hinged with a positioning table, a pressing assembly is arranged in the left end of the shell, a plurality of hydraulic cylinders are symmetrically connected up and down at the center of the shell, movable ends of the hydraulic cylinders extend into the positioning table, the left end of the shell is connected with a frame, crisscrossed steel wires are connected in the frame, the steel wires are in a grid shape, and rubber blocks are connected in steel wire grids. The elastic membrane is arranged in the shell and is horizontally arranged, and the bottom of the elastic membrane is coated with a glue coating. The locating table is used for fixing the end part of the steel, and the locating table covers two thirds of the area of the right port of the shell. Preferably, the spout has been seted up in the locating bench left side, and spout central authorities department is connected with the base, and the base symmetry pin joint has two screws, and sliding fit has two base plates in the spout, and the base is located between two base plates, and the horizontal screw thread of screw runs through the base plate, the locating bench left side is connected with the motor, motor transmission shaft and screw rod end connection. Preferably, the pressure applying component comprises a pressing plate, a rack, an elastic membrane and a pressure detecting module, wherein the pressing plate is in a concave shape, the bottom of the pressing plate is connected with steel in a clamping mode, the pressure detecting module is arranged at the top of the pressing plate, the lower end of the rack is connected to the top of the pressure detecting module, the upper end of the rack vertically extends upwards to the upper portion of the shell, the top of the shell is connected with a driving gear, and the driving gear is meshed with the rack. Preferably, the left side of the positioning table is connected with a bar, the right end of the shell is hinged with the bar, and a spring is connected between the two substrates. (III) beneficial effects The utility model provides a bending resistance testing device for cold-formed thin-wall steel. The beneficial effects are as follows: 1. The bending resistance testing device of the cold-formed thin-wall steel is provided with a frame, steel wires and rubber blocks to form a blocking protection net cover. The steel to be tested is enclosed by the shell, the positioning table and the blocking protective net cover, and the steel is isolated from the outside in the testing process, so that the protective effect is achieved. And the injury to workers caused by the breakage of the steel bars is avoided. Through rubber piece and elastic membrane cooperation, the piece that produces the fracture is buffered, has improved the security. 2. According to the bending resistance testing device for the cold-formed thin-wall steel, the steel is fixed through the cooperation of the base plate, the motor and the screw rod, so that the base plate is always attached to the steel, and the device is applicable to steel with different sizes. The base and the hydraulic cylinder are used for double clamping, so that the phenomenon that the other end of the steel is stressed and deflected when one end of the steel is bent, and the test error is large is avoided. Drawings FIG. 1 is a perspective view of the structure of the present utility model; FIG. 2 is a side view of the structure of the present utility model; FIG. 3 is a cross-sectional view of the structure of the present utility model; FIG. 4 is a schematic view of a partial structure of the present utility model; FIG. 5 is a schematic view of