CN217304722U

CN217304722U - Penetration testing machine for safety net testing

Info

Publication number: CN217304722U
Application number: CN202221038459.7U
Authority: CN
Inventors: 朱迪
Original assignee: Shanghai Hongdong Construction Engineering Testing Co ltd
Current assignee: Shanghai Hongdong Construction Engineering Testing Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-26
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a penetration testing machine for safety net test, which comprises a bracket and a servo motor, wherein a cross bar is installed at the top of the bracket, a support frame is installed at the top of the cross bar, a connecting plate is installed at the bottom of the support frame, and the servo motor is installed on the surface of one side of the connecting plate; the utility model discloses a servo motor, including servo motor, connecting plate, scraper blade, bull stick, servo motor's output is connected with the bull stick, the surface that the bull stick is close to the servo motor output encircles and has arranged the pin, servo motor keeps away from one side surface mounting of connecting plate has the miniature electric pole of symmetrical arrangement, the scraper blade is installed to the tail end of miniature electric pole, the stay cord is installed in the surface winding of bull stick. The utility model discloses a be provided with servo motor, miniature electric pole and scraper blade, start servo motor, the unsettled height of adjustment striking piece to this control striking impulse starts miniature electric pole, drives the stay cord that the scraper blade will bull stick surface rolling state and pushes away from, reduces the coil under the rolling state and the friction that takes place between the bull stick.

Description

Penetration testing machine for safety net testing

Technical Field

The utility model relates to a safety net technical field specifically is a through testing machine of safety net test usefulness.

Background

The construction method is characterized in that a safety net is used for enclosing and supplementing gap positions in the scaffold and the outer vertical face frame to reduce falling objects and intercept the falling objects so as to ensure the safety in the construction process of the building, and a safety net needs to be subjected to penetration test to detect the penetration resistance of the safety net in order to ensure the safety. Therefore, a penetration testing machine for testing the safety net is needed.

The existing safety net testing equipment has the following defects:

patent document CN215866197U discloses a resistant testing machine that runs through of safety net, "including first frame and second frame, be provided with the carriage in the first frame, be provided with on the carriage and compress tightly the frame, the carriage with compress tightly between the frame and be used for pressing from both sides tight safety net, it is fixed through setting up the auto-lock hasp to compress tightly frame and carriage, sliding connection has the gag lever post in the second frame, carriage middle part top is provided with the weight, the weight is hung on the gag lever post through seting up hanging groove, can make the weight break away from the gag lever post after the gag lever post slides, be fixed with the stay cord on the gag lever post. Through with the safety net tensioning and be fixed in the carriage and compress tightly between the frame after, the pulling stay cord for the weight breaks away from and drops to the safety net on the gag lever post and carry out resistant penetration test, through setting up the weight in fixed position, this application utensil can both follow same height at every turn and drop, and then make the effect that the test result is more accurate, this testing machine fails the adjustment that realizes the impact volume when using and the control of striking effect precision, and then make the accuracy of test data difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a penetration testing machine of safety net test usefulness to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a penetration testing machine for a safety net test comprises a support and a servo motor, wherein a cross bar is installed at the top of the support, a support frame is installed at the top of the cross bar, a connecting plate is installed at the bottom of the support frame, and the servo motor is installed on the surface of one side of the connecting plate;

the output end of the servo motor is connected with a rotating rod, the surface of the rotating rod, which is close to the output end of the servo motor, is surrounded by a stop lever, the surface of one side of the servo motor, which is far away from the connecting plate, is provided with symmetrically arranged miniature electric rods, the miniature electric rods are positioned in the middle of the stop lever, the tail end of each miniature electric rod is provided with a scraper, and the surface of each scraper is attached to the surface of the rotating rod;

the surface of the rotating rod is wound with a pull rope, and the pull rope is positioned on one side of the stop lever, which is far away from the servo motor.

Preferably, the surface mounting of support frame has the riser, the surface adsorption of riser installs detection module, detection module is including bonding piece, displacement inductor and sucking disc, the surface adsorption installation of sucking disc and riser, one side surface mounting that the riser was kept away from to the sucking disc has the displacement inductor, one side surface mounting that the riser was kept away from to the displacement inductor has the bonding piece, the display screen is installed to the bottom of riser, and display screen and displacement inductor electric connection.

Preferably, a frame is installed on the inner side of the support, a threaded hole is formed in the top of the frame, a bolt is connected to the inner thread of the threaded hole in a threaded manner, and a cover plate is sleeved on the surface of the bolt.

Preferably, the surface of the frame is connected with a safety net body through bolts, the diameter of the meshes of the safety net body is smaller than that of the cover plate and larger than that of the bolts, and the area of the safety net body is larger than that of the frame.

Preferably, the striking piece is installed to the tail end of stay cord, the embedded infrared distance measuring inductor of installing of tail end of striking piece, infrared distance measuring inductor and display screen electric connection.

Preferably, the bottom of the safety net body is detachably connected with the detection module through an adhesive block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an install servo motor, miniature electronic pole, pin, scraper blade, stay cord and striking piece, start servo motor, adjust the unsettled height of stay cord tail end striking piece to this control striking impulse later starts miniature electronic pole, drives the stay cord that the scraper blade will bull stick surface rolling state and pushes away from, reduces the coil under the rolling state and the friction that takes place between the bull stick.

2. The utility model discloses an install detection module, with the adhesion of bonding piece in the bottom of safety net dictyosome, when the safety net dictyosome receives the striking processing of striking piece, detect the sunken distance of safety net dictyosome through the displacement inductor to show through the display screen display, judge the safety net dictyosome good or bad of anti ability of running through when meeting with the striking through the size of distance numerical value.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the mounting structure of the servo motor, the rotating rod, the pull rope and the impact block of the present invention;

fig. 3 is a schematic view of the mounting structure of the servo motor, the rotary rod, the miniature electric rod and the scraper blade of the present invention;

FIG. 4 is a schematic view of the mounting structure of the detection module of the present invention;

fig. 5 is a schematic view of the installation structure of the frame and the net body of the safety net of the present invention.

In the figure: 1. a support; 2. a safety net body; 3. a rail; 4. a support frame; 5. an impact block; 6. pulling a rope; 7. a servo motor; 701. a miniature electric rod; 702. a stop lever; 703. a squeegee; 8. a detection module; 801. bonding blocks; 802. a displacement sensor; 803. a suction cup; 9. a display screen; 10. a cover plate; 11. A rotating rod; 12. a bolt; 13. a frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides an embodiment: a penetration testing machine for a safety net test comprises a support 1 and a servo motor 7, wherein a cross bar 3 is installed at the top of the support 1, a support frame 4 is installed at the top of the cross bar 3, a connecting plate is installed at the bottom of the support frame 4, and the servo motor 7 is installed on one side surface of the connecting plate;

the output end of the servo motor 7 is connected with a rotating rod 11, the surface of the rotating rod 11 close to the output end of the servo motor 7 is surrounded by a stop lever 702, the surface of one side of the servo motor 7 far away from the connecting plate is provided with miniature electric rods 701 which are symmetrically arranged, the miniature electric rods 701 are positioned in the middle of the stop lever 702, the tail end of each miniature electric rod 701 is provided with a scraper 703, and the surface of each scraper 703 is attached to the surface of the rotating rod 11;

stay cord 6 is installed in the surface winding of bull stick 11, and stay cord 6 is located the one side that servo motor 7 was kept away from to pin 702, and striking block 5 is installed to the tail end of stay cord 6, and the embedded infrared distance measuring inductor of installing of tail end of striking block 5, infrared distance measuring inductor and display screen 9 electric connection.

Further, when a safety net penetration test is carried out, the servo motor 7 is started to further enable the rotating rod 11 to rotate, the impact block 5 can be driven to move upwards after the winding treatment of the pull rope 6 is achieved, the distance between the impact block 5 and the safety net body 2 on the surface of the lower frame 13 is measured through the infrared distance measuring sensor, corresponding height data are displayed through the display screen 9, and therefore under the condition that the weight of the impact block 5 is constant, the impulse of the impact block 5 when the impact block penetrates through the safety net body 2 in a descending mode is adjusted through changing the vertical height of the impact block 5;

when the impact block 5 descends, the servo motor 7 is closed, the miniature electric rod 701 is started, the scraper 703 is driven to push away the pull rope 6 in the surface winding state of the rotating rod 11, and then the impact block 5 can freely fall under the action of gravity after the coil formed by winding when the pull rope 6 is wound leaves the tail end of the rotating rod 11, so that the friction between the coil and the rotating rod 11 in the winding state is reduced, and the safety net can obtain accurate impact initial impulse when being tested.

Due to the arrangement of the stop lever 702, when the servo motor 7 drives the rotating rod 11 to rotate and wind, the coil cannot be excessively wound to the position of the miniature electric rod 701, so that the movement of the follow-up scraper 703 can be conveniently pushed away.

Support frame 4's surface mounting has the riser, the surface mounting of riser has detection module 8, detection module 8 is including bonding piece 801, displacement inductor 802 and sucking disc 803, the surface mounting of sucking disc 803 and riser, one side surface mounting that the riser was kept away from to sucking disc 803 has displacement inductor 802, one side surface mounting that the riser was kept away from to displacement inductor 802 has bonding piece 801, display screen 9 is installed to the bottom of riser, and display screen 9 and displacement inductor 802 electric connection, the bottom of safety net dictyosome 2 is realized dismantling through bonding piece 801 and detection module 8 and is connected.

Further, before the detection, peel off sucking disc 803 from the surface of riser, later with bonding piece 801 adhesion in the bottom of safety net dictyosome 2, when safety net dictyosome 2 receives the striking processing of striking piece 5, safety net dictyosome 2 takes place to cave in, and then detect the sunken distance of safety net dictyosome 2 through displacement inductor 802, and show through display screen 9, judge the safety net dictyosome 2 through the size of distance numerical value when encountering the striking good or bad of anti-penetration ability, in addition at this in-process, sucking disc 803 is located the below of displacement inductor 802, can provide the support protection when displacement inductor 802 touches ground to earth, protect the safety of displacement inductor 802.

Frame 13 is installed to the inboard of support 1, and the top of frame 13 is equipped with the screw hole, and the internal thread of screw hole is connected with bolt 12, and the apron 10 has been cup jointed on bolt 12's surface, and frame 13's surface is connected with safety net dictyosome 2 through bolt 12, and the mesh diameter of safety net dictyosome 2 is less than apron 10 and is greater than bolt 12, and the area of safety net dictyosome 2 is greater than frame 13.

Further, when the safety net body 2 is laid, the safety net body 2 is firstly laid on the surface of the frame 13, then the bolts 12 are penetrated into the meshes inside the safety net body 2 to be connected with the threaded holes on the surface of the frame 13, and then the safety net body 2 is covered by the cover plate 10, so that the safety net body 2 can be stably covered on the surface of the frame 13.

The working principle is as follows: before the safety net penetration test is carried out, firstly, the safety net body 2 is laid on the surface of the frame 13, then bolts 12 are penetrated into meshes in the safety net body 2 to be connected with threaded holes in the surface of the frame 13, then, the safety net body 2 is covered by the cover plate 10, so that the safety net body 2 can be stably covered on the surface of the frame 13, the bonding blocks 801 are adhered to the bottom of the safety net body 2, when the safety net body 2 is subjected to impact treatment by the impact blocks 5, the safety net body 2 collapses, the sinking distance of the safety net body 2 is detected by the displacement sensor 802 and is displayed by the display screen 9, and the penetration resistance of the safety net body 2 is judged according to the distance value;

then, the servo motor 7 is started, the suspension height of the impact block 5 at the tail end of the pull rope 6 is adjusted, then the miniature electric rod 701 is started, the scraper 703 is driven to push away the pull rope 6 in the surface winding state of the rotating rod 11, and then the impact block 5 can freely fall under the action of gravity after the coil formed by winding when the pull rope 6 is wound leaves the tail end of the rotating rod 11, so that the friction between the coil and the rotating rod 11 in the winding state is reduced, and further, the safety net can obtain accurate impact initial impulse when being tested.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a penetration test machine of safety net test usefulness, includes support (1) and servo motor (7), its characterized in that: a cross bar (3) is installed at the top of the support (1), a support frame (4) is installed at the top of the cross bar (3), a connecting plate is installed at the bottom of the support frame (4), and a servo motor (7) is installed on the surface of one side of the connecting plate;

the output end of the servo motor (7) is connected with a rotating rod (11), the surface of the rotating rod (11) close to the output end of the servo motor (7) is provided with a stop lever (702) in a surrounding mode, the surface of one side, far away from the connecting plate, of the servo motor (7) is provided with miniature electric rods (701) which are symmetrically arranged, the miniature electric rods (701) are located in the middle of the stop lever (702), the tail end of each miniature electric rod (701) is provided with a scraper (703), and the surface of each scraper (703) is attached to the surface of the rotating rod (11);

stay cord (6) are wound and installed on the surface of rotating rod (11), and stay cord (6) are located on one side, away from servo motor (7), of stop lever (702).

2. The penetration tester for testing the safety net according to claim 1, wherein: the surface mounting of support frame (4) has the riser, the surface adsorption of riser installs detection module (8), detection module (8) are including bonding piece (801), displacement inductor (802) and sucking disc (803), sucking disc (803) and the surface adsorption of riser install, one side surface mounting who keeps away from the riser of sucking disc (803) has displacement inductor (802), one side surface mounting who keeps away from the riser of displacement inductor (802) has bonding piece (801), display screen (9) are installed to the bottom of riser, and display screen (9) and displacement inductor (802) electric connection.

3. The penetration testing machine for the safety net test according to claim 1, characterized in that: the inner side of the support (1) is provided with a frame (13), the top of the frame (13) is provided with a threaded hole, the inner thread of the threaded hole is connected with a bolt (12), and the surface of the bolt (12) is sleeved with a cover plate (10).

4. The penetration tester for testing the safety net according to claim 3, wherein: the surface of frame (13) is connected with safety net dictyosome (2) through bolt (12), the mesh diameter of safety net dictyosome (2) is less than apron (10) and is greater than bolt (12), the area of safety net dictyosome (2) is greater than frame (13).

5. The penetration tester for testing the safety net according to claim 1, wherein: striking piece (5) are installed to the tail end of stay cord (6), the embedded infrared distance measuring inductor of installing of tail end of striking piece (5), infrared distance measuring inductor and display screen (9) electric connection.

6. The penetration tester for testing the safety net according to claim 4, wherein: the bottom of the safety net body (2) is detachably connected with the detection module (8) through the bonding block (801).