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CN-121977945-A - Impact-resistant test equipment for safety net

CN121977945ACN 121977945 ACN121977945 ACN 121977945ACN-121977945-A

Abstract

The invention provides impact resistance test equipment for a safety net, which relates to the technical field of impact test and comprises a bottom plate, a guide mechanism, a clamping assembly and a supporting mechanism, wherein an upright post is screwed on the surface of the bottom plate, the guide mechanism is welded at the top end of the upright post, the guide mechanism is symmetrically arranged on two sides of the bottom plate, the clamping assembly is inserted into the inner side of the guide mechanism, a central shaft is inserted into the middle of the clamping assembly, and a hand wheel is arranged at one end of the central shaft.

Inventors

  • LIU SHUAI

Assignees

  • 惠民县帅鑫化纤绳网有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. The safety net impact-resistant test equipment comprises a test equipment body and is characterized in that the test equipment body comprises a bottom plate (1), a guide mechanism (3), clamping assemblies (4) and supporting mechanisms (5), wherein the surfaces of the bottom plate (1) are connected with upright posts (2) in a screwed mode, the top ends of the upright posts (2) are welded with the guide mechanisms (3), the guide mechanisms (3) are symmetrically arranged on two sides of the bottom plate (1), the clamping assemblies (4) are inserted into the inner sides of the guide mechanisms (3), a central shaft (6) is inserted into the middle of the clamping assemblies (4), a hand wheel (18) is arranged at one end of the central shaft (6), each clamping assembly (4) moves along the inner part of the guide mechanism (3), two ends of a safety net to be tested are respectively wound on the surfaces of the corresponding clamping assemblies (4), the supporting mechanisms (5) are arranged on the surfaces of the bottom plate (1), the top ends of the supporting mechanisms (5) are provided with supporting plates, the supporting plates comprise a first supporting plate (23) and a second supporting plate (24), the surfaces of the first supporting plate (23) and the second supporting plate (24) are provided with an electric supporting rod (30), and the bottoms of the telescopic sleeve (30) and the electric lifting rod (28) are fixed on the surface of the bottom plate (1).
  2. 2. The safety net impact test device according to claim 1, wherein the guide mechanism (3) comprises an end plate (19), a strip-shaped hole (20) and an extension plate (21), the end plate (19) is welded at the top of the upright post (2), the strip-shaped hole (20) is formed in the inner side of the end plate (19), the extension plate (21) is integrally formed in the outer side of the bottom of the end plate (19), and racks (22) are arranged on the surface of the extension plate (21).
  3. 3. The safety net impact test device according to claim 2, wherein the central shaft (6) passes through the inside of the strip-shaped hole (20), the diameter of the central shaft (6) is the same as the height of the strip-shaped hole (20), the bottom of the end plate (19) is higher than the top end of the supporting mechanism (5), and each guiding mechanism (3) is always vertical to the clamping assembly (4).
  4. 4. The safety net impact test device according to claim 2, wherein the clamping assembly (4) comprises a central shaft (6), a winding column (7), a gear (17) and a pressing plate (14), the surface of the central shaft (6) is provided with the winding column (7), a first threaded column (8) and a second threaded column (9) are inserted into the surface of the winding column (7), and each of the first threaded column (8) and the second threaded column (9) is arranged on the same straight line.
  5. 5. The safety net impact resistance test device according to claim 4, wherein a gear (17) is connected to the surface key of the central shaft (6), the gear (17) is arranged on the outer side of the end plate (19), the gear (17) is used for being meshed with a rack (22), and the hand wheel (18) is used for controlling the central shaft (6) and the winding column (7) to synchronously perform rotation and translation movement after rotating.
  6. 6. The safety net impact resistance test device according to claim 5, wherein the surface of the central shaft (6) is further sleeved with a rotating sleeve (10), the surface of the rotating sleeve (10) is welded with a lower hanging rod (11), the tail end of the lower hanging rod (11) is in threaded connection with a limit supporting plate (12), two ends of the pressing plate (14) are integrally formed with lantern rings (13), and the lantern rings (13) are used for being sleeved on the surface of the lower hanging rod (11).
  7. 7. The safety net impact test device according to claim 6, wherein the surface of the pressing plate (14) is provided with a first through hole (15) and a second through hole (16), the first through hole (15) is used for being sleeved on the surface of the first threaded column (8), the second through hole (16) is used for being sleeved on the surface of the second threaded column (9), gears (17) are mounted at two ends of each central shaft (6), the rotating sleeve (10) is embedded into the surface of the central shaft (6), the whole pressing plate (14) is of an arc-shaped structure, and the inner side of the pressing plate (14) is used for being attached to the surface of the winding column (7).
  8. 8. The safety net impact test device according to claim 2, wherein the supporting mechanism (5) comprises a first supporting plate (23), a second supporting plate (24), a spring rod (27) and an electric lifting rod (28), rotating bases (26) are welded at the bottoms of the first supporting plate (23) and the second supporting plate (24), the spring rod (27) is welded at the bottom of the rotating bases (26), the bottom end of the spring rod (27) is inserted into the telescopic sleeve (30), and the first supporting plate (23) and the second supporting plate (24) perform rotary motion through the corresponding rotating bases (26).
  9. 9. The safety net impact test device according to claim 8, wherein the end part of the first supporting plate (23) is integrally formed with a plugging rod (25), the end part of the second supporting plate (24) is provided with a plugging hole (29), the plugging rod (25) is used for being embedded into the inner side of the plugging hole (29), and the distance between every two adjacent plugging rods (25) is the same.
  10. 10. The safety net impact test device according to claim 9, wherein a lifting plate (31) is welded at the top end of the electric lifting rod (28), a bottom arc plate (32) is integrally formed at one side of the lifting plate (31), a top arc plate (33) is integrally formed at the other side of the lifting plate (31), the bottom arc plate (32) is used for propping against the lower part of the first supporting plate (23), and the top arc plate (33) is used for propping against the lower part of the second supporting plate (24).

Description

Impact-resistant test equipment for safety net Technical Field The invention relates to the technical field of impact test, in particular to safety net impact resistance test equipment. Background The impact resistance test of the safety net is used for evaluating the performance and stability of the safety net when the safety net is impacted by external force, so that the safety net can effectively protect personnel and articles in actual use. The test is generally used in the fields of building construction, safety protection, sports facilities and the like. The bearing capacity, deformation characteristics and damage condition of the safety net under dynamic load are tested by simulating the falling object or the falling impact of a human body, so that the safety net can be ensured to effectively intercept the falling object or the person in actual use. The net body material, the node process or the supporting structure is improved through test data, so that the shock resistance is improved, and the service life is prolonged. In the impact resistance test of the safety net, the safety net to be tested is required to be firstly installed on the surface of test equipment, the edge of the safety net is fixed by using a clamp, and the impact resistance of the safety nets with different lengths can be different, so that the safety nets with different specifications are required to be tested respectively, the test flow of the test of the safety nets with different specifications is complicated, frequent disassembly and assembly are required, the test efficiency is low, on the other hand, when the test is performed by using the spherical weight of the gravity ball, the safety net still needs to be manually taken down after the impact, the operation is time-consuming and labor-consuming, and if the safety net is in a pushing mode, the safety net is easy to be additionally damaged in the rolling process of the weight along the safety net. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide the impact resistance test equipment for the safety net, so as to solve the problems in the prior art, realize the clamping process of the safety net to be tested through the clamping component, flexibly regulate and control the clamping position, after the test device is used for testing the longer safety net, the test length range of the safety net can be changed directly through the rolling mode without taking down and replacing the safety net, so that the shortened safety net is tested again, and the efficiency of the multi-specification test is improved. In order to achieve the aim, the safety net impact-resistant test equipment comprises a test equipment body, wherein the test equipment body comprises a bottom plate, a guide mechanism, clamping assemblies and a supporting mechanism, the surface of the bottom plate is connected with an upright post in a screwed mode, the top end of the upright post is welded with the guide mechanism, the guide mechanism is symmetrically arranged on two sides of the bottom plate, the clamping assemblies are inserted into the inner side of the guide mechanism, a central shaft is inserted into the middle of each clamping assembly, a hand wheel is arranged at one end of each central shaft, each clamping assembly moves along the inside of the guide mechanism, two ends of a safety net to be tested are respectively wound on the surfaces of the corresponding clamping assemblies, the surface of the bottom plate is provided with the supporting mechanism, the top end of the supporting mechanism is provided with a supporting plate, the supporting plate comprises a first supporting plate and a second supporting plate, the surfaces of the first supporting plate and the second supporting plate are arc-shaped structures, the bottoms of the supporting mechanism are provided with a telescopic sleeve and an electric lifting rod, and the bottoms of the telescopic sleeve and the electric lifting rod are fixed on the surfaces of the bottom plate. Further, guiding mechanism includes end plate, bar hole and extension board, the end plate welds the top at the stand, the bar hole has been seted up to the inboard of end plate, the bottom outside integrated into one piece of end plate has the extension board, the surface of extension board is provided with the rack. Further, the center shaft passes through the inside of the strip-shaped hole, the diameter of the center shaft is the same as the height of the strip-shaped hole, the bottom of the end plate is higher than the top end of the supporting mechanism, and each guiding mechanism and the clamping assembly are always kept in a vertical state. Further, the clamping assembly comprises a central shaft, a winding column, a gear and a pressing plate, wherein the winding column is arranged on the surface of the central shaft, a first threaded column and a second threaded column are inserted into the surface of the wind