CN114659780B

CN114659780B - Safety detection device for falling protector

Info

Publication number: CN114659780B
Application number: CN202210575020.6A
Authority: CN
Inventors: 谢洪涛; 陆天童; 谢冠博
Original assignee: Qidong Sanlian Construction Machinery Co ltd
Current assignee: Qidong Sanlian Construction Machinery Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-09-23
Anticipated expiration: 2042-05-25
Also published as: CN114659780A

Abstract

The invention discloses a safety detection device of a falling protector, which comprises a U-shaped base, wherein the U-shaped base is placed upside down, a U-shaped support frame is fixedly connected between the middle parts of the top ends of the U-shaped base, a frame plate is movably connected with the middle parts of the top ends of the U-shaped support frame, a first switch is fixedly connected with the middle parts of the top ends of the U-shaped support frame and is positioned under the frame plate, a placing plate is arranged inside the U-shaped base and is rotatably connected with the inside of the U-shaped base, a support plate is fixedly connected with the inside of the U-shaped base and is positioned under the placing plate, a second switch is fixedly connected with the top of the support plate, a timer is fixedly connected with the outer wall of one side of the U-shaped base, the first switch and the second switch are electrically connected with the timer, after a tilting rod for supporting the placing plate is driven by a motor to leave the placing plate, the placing plate is suddenly unsupported, a heavy object is driven by the falling protector to do free-falling motion, so as to simulate the object to fall all the time, the accuracy of the motion state of the falling protector during detection is improved.

Description

Safety detection device for falling protector

The technical field is as follows:

the invention belongs to the technical field of safety accessory detection equipment, and particularly relates to a safety detection device of a falling protector.

Background art:

the falling protector is a device capable of quickly braking and locking falling objects within a limited distance, is suitable for protecting the life safety of elevator protection and high-speed workers, automatically controls the falling protector by utilizing the falling speed difference of the objects, extrudes a cable to achieve locking limitation by utilizing the principle of inertia in the process of quick falling, and needs to carry out strict safety detection after production is finished because the falling protector is an extremely important protection device.

According to the falling protector detection device with the publication number of CN202022593397.3, the clamping stabilizing device is arranged at the upper end inside the support frame, the rotating rod is rotated to enable the upper end and the lower end of the rotating rod to oppositely move, the left side and the right side of the sliding rod are connected with the guide rods to move the movable plate along with the movement of the sliding rod, and the movable plate drives the clamping strip arranged at the upper end to move together with the clamping block, so that the clamping stabilizing movement is realized.

In the prior art, the safety detection of the traditional falling protector mostly drives the clamp with the falling protector to move through the transmission equipment, the simulation movement is realized, but the transmission equipment simulates the dynamic state when the falling protector is difficult to effectively realize the free falling of an object, the speed of the power equipment is uniform, the object has an accelerating process when falling freely, and the transmission equipment is used for simulating the static state time when the falling protector is difficult to accurately detect.

The invention content is as follows:

the invention aims to solve the problems and provide a safety detection device for a falling protector, after a tilting rod for supporting a placing plate is driven by a motor to leave the placing plate, the placing plate loses support suddenly, a heavy object drives the falling protector to do free falling body motion, the falling motion of the object all the time is simulated, the accuracy of the motion state of the falling protector during detection is improved, switches connected with a timer are arranged at the bottoms of frame plates connected with the bottom of the placing plate and a connecting rope, the time interval for opening the two switches and the falling distance of the falling protector are calculated by the timer, the protection effect of the falling protector can be effectively calculated, the tilting rod at the top of a sliding block can rotate, the tilting rod can jack the placing plate 9 up again to reset when the sliding block resets, manual adjustment is not needed, and the use efficiency of equipment is improved.

In order to solve the above problems, the present invention provides a technical solution:

the safety detection device for the falling protector comprises a U-shaped base, wherein the U-shaped base is placed upside down, a U-shaped support frame is fixedly connected between the middle parts of the top ends of the U-shaped base, a frame plate is movably connected with the middle parts of the top ends of the U-shaped support frame, a first switch is fixedly connected with the middle parts of the top ends of the U-shaped support frame and is positioned under the frame plate, a placing plate is arranged inside the U-shaped base and is rotatably connected with the inside of the U-shaped base, a support plate is fixedly connected with the inside of the U-shaped base and is positioned under the placing plate, a second switch is fixedly connected with the top of the support plate, a timer is fixedly connected with the outer wall of one side of the U-shaped base, the first switch and the second switch are electrically connected with the timer, when the tilting rod leaves the placing plate along with the sliding block, one end, far away from the tilting rod, of the placing plate sags under the action of self weight, the falling protector placed on the placing plate slides down under the driving of the balance weight to leave the placing plate, meanwhile, the bottom of the placing plate is in contact with the second switch, the timer records initial time, when the falling protector works, the heavy object and the falling protector drive the frame plate to move downwards through inertia, the frame plate is in contact with the first switch, and the timer records end time can be obtained when the falling protector works from weightlessness to work.

As a preferred technical scheme, two L-shaped connecting plates are fixedly connected to two sides of the frame plate relatively, a connecting rope is arranged below the U-shaped supporting frame, the top of the connecting rope is detachably connected with the two L-shaped connecting plates, a balancing weight is fixedly connected to the bottom of the connecting rope, the distance between the balancing weight and the placing plate is larger than fifty centimeters, the balancing weight drives the connecting rope to droop, the connecting rope is tightened, and the long stroke distance can be used for effectively detecting the moving range of the falling protector.

According to a preferable technical scheme, a plurality of first limiting rods are fixedly connected to the bottom of the frame plate at equal intervals, the bottom of each first limiting rod is connected with a U-shaped supporting frame in an inserting mode, a spring is sleeved at the upper end of each first limiting rod, the upper end and the lower end of each spring are fixedly connected with the frame plate and the U-shaped supporting frame respectively, the frame plate is jacked up through the thrust of the springs, and when the falling protector and a heavy object are subjected to inertia, the springs can be compressed, and therefore a first switch can be touched by the frame plate.

According to a preferred technical scheme, two sides of the inner wall of the U-shaped base are relatively and fixedly connected with limiting plates, threaded rods are rotatably connected between the two limiting plates and the U-shaped base, the two threaded rods are in threaded connection with sliding blocks, the middle of the top end of each sliding block is rotatably connected with a warping rod, the bottom of the placing plate, which is far away from one end of the rotating shaft, is fixedly connected with a limiting block in a position opposite to the warping rod, the top of the warping rod is arc-shaped and abuts against the limiting block, the warping rod cannot move when moving to the position of the limiting block through limiting of the limiting block, and only the warping rod can continue to move to the top of the warping rod in the rotating direction, so that the placing plate is prevented from slowly descending along an inclined plane formed by the warping rod when the sliding blocks are driven to move.

As a preferred technical scheme of the invention, a second limiting rod is inserted into one side of the sliding block, the sliding block is connected with the second limiting rod in a sliding manner, two ends of the second limiting rod are respectively fixedly connected with the limiting plate and the U-shaped base, the top of the sliding block is positioned on two sides of the warping rod, the limiting blocks are relatively and fixedly connected with the top of the sliding block, when the warping rod abuts against the limiting blocks, the angle between the warping rod and the sliding block is forty-five degrees, and the two sides of the warping rod are both limited by the limiting blocks, so that the top of the warping rod has a certain height, and the placing plate is convenient to jack up.

As a preferred technical scheme of the invention, the middle part of the outer wall of the U-shaped base is fixedly connected with a motor, the output end of the motor penetrates through the U-shaped base and is fixedly connected with a second gear, the outer wall of one end, close to the motor, of each of the two threaded rods is fixedly connected with a first gear, a transmission belt is meshed between the second gear and the two first gears, the second gear is meshed with the first gear through the transmission belt, and the motor can drive the threaded rods to rotate through the transmission of the transmission belt and the three gears, so that the sliding block can move.

The invention has the beneficial effects that: this detection device is equipped with the board of placing that is used for placing the safety hook, place the safety hook that has the heavy object after placing on the board, drive the stick up pole that supports the board of placing through the motor and leave after placing the board, place the board and lose the support suddenly, the heavy object drives the safety hook and is the motion of free fall, the motion that the simulation object descends all the time, the degree of accuracy of the motion state of safety hook when improving the detection, the bottom of placing the board all is equipped with the switch of being connected with the time-recorder with the bottom of the frame plate of being connected with the rope, calculate the time interval that two switches were opened and safety hook whereabouts distance through the time-recorder, can effectively calculate the safeguard effect of safety hook, the stick up pole at slider top can rotate, make when the slider resets, stick up the pole and can reset placing the board jack-up again, need not artifical manual regulation, efficiency when improve equipment uses.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of a connection structure of the shelf plate of the present invention;

FIG. 3 is a schematic view of a static structure of the placing board of the present invention;

FIG. 4 is a schematic view of the working state of the placing board of the present invention;

fig. 5 is a schematic view of a connection structure of the second gear of the present invention.

In the figure: 1. a U-shaped base; 2. a U-shaped support frame; 3. a frame plate; 4. a first limiting rod; 5. a spring; 6. a first switch; 7. an L-shaped connecting plate; 8. connecting ropes; 9. placing the plate; 10. a limiting block; 11. a support plate; 12. a second switch; 13. a timer; 14. a limiting plate; 15. a threaded rod; 16. a slider; 17. a second limiting rod; 18. a limiting block; 19. raising the rod; 20. a balancing weight; 21. a motor; 22. a first gear; 23. a second gear; 24. a drive belt.

The specific implementation mode is as follows:

the technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. 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 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," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 5, the following technical solutions are adopted in the present embodiment: the safety detection device for the falling protector comprises a U-shaped base 1, wherein the U-shaped base 1 is arranged upside down, a U-shaped support frame 2 is fixedly connected between the middle parts of the top ends of the U-shaped base 1, a frame plate 3 is movably connected with the middle part of the top end of the U-shaped support frame 2, a first switch 6 is fixedly connected with the middle part of the top end of the U-shaped support frame 2 and is positioned under the frame plate 3, a placing plate 9 is arranged inside the U-shaped base 1, the placing plate 9 is rotatably connected with the inside of the U-shaped base 1, a support plate 11 is fixedly connected with the inside of the U-shaped base 1 and is positioned under the placing plate 9, a second switch 12 is fixedly connected with the top of the support plate 11, a timer 13 is fixedly connected with the outer wall of one side of the U-shaped base 1, and the first switch 6 and the second switch 12 are both electrically connected with the timer 13, when the tilting rod 19 leaves the placing plate 9 along with the sliding block 16, one end, far away from the tilting rod 19, of the placing plate 9 sags under the action of the dead weight, the falling protector placed on the placing plate 9 slides downwards under the driving of the balance weight to leave the placing plate 9, meanwhile, the bottom of the placing plate 9 is in contact with the second switch 12, the timer 13 records the initial time, when the falling protector works, a heavy object and the falling protector drive the frame plate 3 to move downwards through inertia, the frame plate 3 is in contact with the first switch 6, the timer 13 records the end time, and the time from weightlessness to working of the falling protector can be obtained.

Two L shape connecting plates 7 of the relative fixedly connected with in both sides of frame plate 3, the below of U-shaped support frame 2 is equipped with connects rope 8, connects the top of rope 8 and can dismantle with two L shape connecting plates 7 and be connected, connects the bottom fixedly connected with balancing weight 20 of rope 8, balancing weight 20 with place the interval between the board 9 and be greater than fifty centimetres, balancing weight 20 drives and connects rope 8 flagging for connect rope 8 and tighten, longer stroke interval can be more effective detection safety hook's removal interval.

A plurality of gag lever posts 4 of bottom equidistance fixedly connected with of frame plate 3, the bottom and the U-shaped support frame 2 of gag lever post 4 are pegged graft, the last pot head of gag lever post 4 is equipped with spring 5, the upper and lower both ends of spring 5 respectively with

frame plate

3 and 2 fixed connection of U-shaped support frame, make frame plate 3 by jack-up through the thrust of spring 5, when receiving the inertia of safety hook and heavy object, spring 5 can be compressed again for switch 6 can be touched by frame plate 3.

Limiting plates 14 are relatively and fixedly connected to two sides of the inner wall of the U-shaped base 1, threaded rods 15 are rotatably connected between the two limiting plates 14 and the U-shaped base 1, sliders 16 are in threaded connection with the two threaded rods 15, warping rods 19 are rotatably connected to the middle of the top ends of the sliders 16, the bottom of the placing plate 9 far away from one end of the rotating shaft is fixedly connected with a limiting block 10 in a position opposite to the warping rods 19, the tops of the warping rods 19 are arc-shaped and abut against the limiting block 10, through the limiting of the limiting block 10, the tilting rod 19 cannot move when moving to the position of the limiting block 10, and can only continue to advance until the top of the tilting rod 19 in the rotation direction of the tilting rod 19, so that the slide block 16 is prevented from slowly descending along the inclined plane formed by the tilting rod 19 along the placing plate 9 when the tilting rod 19 is driven to move.

One side of slider 16 is pegged graft and is had No. two gag lever post 17, slider 16 and No. two gag lever post 17 sliding connection, No. two gag lever post 17's both ends respectively with limiting plate 14 and U-shaped base 1 fixed connection, slider 16's top is located the relative fixedly connected with restriction piece 18 in both sides of perk pole 19, perk pole 19 supports when limiting piece 18, the angle between perk pole 19 and the slider 16 is forty-five degrees, perk pole 19's both sides all are restricted by restriction piece 18, make the top of perk pole 19 have a take the altitude, conveniently will place board 9 jack-up.

Outer wall middle part fixedly connected with motor 21 of U-shaped base 1, No. two gears 23 of 1 fixedly connected with of U-shaped base are passed to motor 21's output, two threaded rods 15 are close to No. one gear 22 of one end outer wall fixedly connected with of motor 21, the meshing is connected with drive belt 24 between No. two gears 23 and two gears 22, No. two gears 23 pass through drive belt 24 and are connected with a gear 22 meshing, motor 21 can drive threaded rod 15 through the transmission of drive belt 24 with three gear and rotate, make slider 16 can remove.

Specifically, the method comprises the following steps: the safety detection device of the falling protector comprises a motor 21, two threaded rods 15, a tilting rod 19, a placing plate 9, a falling protector, a motor 21, a sliding block 16, a limit block 10, a positioning block 16, a timer 13 and a connecting rope 11, wherein the two threaded rods 15 are driven to move by the motor 21, the tilting rod 19 drives the placing plate 9 to keep horizontal, the falling protector is arranged at a position, close to the placing plate 9, of the connecting rope 8, the motor 21 is started, the sliding block 16 continues to move forward, the bottom of the tilting rod 19 continues to move forward along with the movement of the sliding block 16 after being limited by the limit block 10, the placing plate 9 suddenly loses support and sags after being separated from the placing plate 9, the falling protector with a heavy object loses limit and falls under the pulling of the heavy object, meanwhile, the placing plate 9 is contacted with a second switch 12 at the top of the supporting plate 11 due to sag, the timer 13 records time for the first time, the connecting rope 8 is quickly locked when the falling protector works after being weightless, the falling protector and a heavy object pull the connecting rope 8 downwards under the action of inertia, the downward inertia borne by the frame plate 3 connected with the connecting rope 8 is larger than the elastic force of the spring 5, the frame plate 3 descends to contact with the first switch 6, the timer 13 records the second time to obtain the falling time of the falling protector, the traveling length of the falling protector on the connecting rope 8 is measured, whether the falling protector is in a safety standard or not can be detected, after the measurement is completed, the control motor 21 reversely outputs, the sliding block 16 resets under the drive of the threaded rod 15, the top of the tilting rod 19 faces the placing plate 9 at the moment, when the upper end of the tilting rod 19 moves to the placing plate 9, the upper end is limited, the orientation of the tilting rod 19 is adjusted through rotation, the tilting rod 19 and the placing plate 9 face the same side, and along with the movement of the tilting rod 19, the placing plate 9 is gradually jacked up to reset, and can be detected again without manual reset, so that the detection efficiency is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Other parts of the present invention not described in detail are prior art and are not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The safety detection device for the falling protector is characterized by comprising a U-shaped base (1), wherein the U-shaped base (1) is placed upside down, a U-shaped support frame (2) is fixedly connected between the middle parts of the top ends of the U-shaped base (1), a frame plate (3) is movably connected with the middle parts of the top ends of the U-shaped support frame (2), a first switch (6) is fixedly connected with the middle parts of the top ends of the U-shaped support frame (2) and is positioned under the frame plate (3), a placing plate (9) is arranged in the U-shaped base (1), the placing plate (9) is rotatably connected with the inside of the U-shaped base (1), a support plate (11) is fixedly connected with the inside of the U-shaped base (1) and is positioned under the placing plate (9), and a second switch (12) is fixedly connected with the top of the support plate (11), the outer wall of one side of the U-shaped base (1) is fixedly connected with a timer (13), and the first switch (6) and the second switch (12) are electrically connected with the timer (13); two L-shaped connecting plates (7) are fixedly connected to two sides of the frame plate (3) relatively, a connecting rope (8) is arranged below the U-shaped supporting frame (2), the top of the connecting rope (8) is detachably connected with the two L-shaped connecting plates (7), a balancing weight (20) is fixedly connected to the bottom of the connecting rope (8), and the distance between the balancing weight (20) and the placing plate (9) is larger than fifty centimeters; the bottom of the frame plate (3) is fixedly connected with a plurality of first limiting rods (4) at equal intervals, the bottom of each first limiting rod (4) is connected with the U-shaped support frame (2) in an inserting mode, a spring (5) is sleeved at the upper end of each first limiting rod (4), the upper end and the lower end of each spring (5) are fixedly connected with the frame plate (3) and the U-shaped support frame (2) respectively, the frame plate (3) is jacked up through the thrust of the springs (5), and when the falling protector and a heavy object are subjected to inertia, the springs (5) can be compressed, so that the first switch (6) can be touched by the frame plate (3); limiting plates (14) are fixedly connected to two sides of the inner wall of the U-shaped base (1) relatively, threaded rods (15) are rotatably connected between each two limiting plates (14) and the U-shaped base (1), sliding blocks (16) are in threaded connection with the two threaded rods (15), warping rods (19) are rotatably connected to the middles of the top ends of the sliding blocks (16), limiting blocks (10) are fixedly connected to the bottoms of the placing plates (9) far away from one ends of the rotating shafts and opposite to the positions of the warping rods (19), and the tops of the warping rods (19) are arc-shaped and abut against the limiting blocks (10); one side of slider (16) is pegged graft and is had No. two gag lever post (17), slider (16) and No. two gag lever post (17) sliding connection, the both ends of No. two gag lever post (17) respectively with limiting plate (14) and U-shaped base (1) fixed connection, the top of slider (16) is located the relative fixedly connected with in both sides restriction piece (18) of perk pole (19), when perk pole (19) support on restriction piece (18), the angle between perk pole (19) and slider (16) is forty-five degrees.

2. The fall arrester safety detection device of claim 1, wherein: outer wall middle part fixedly connected with motor (21) of U-shaped base (1), the output of motor (21) passes No. two gears (23) of U-shaped base (1) fixedly connected with, two one end outer wall fixedly connected with gear (22) that threaded rod (15) are close to motor (21), the meshing is connected with driving belt (24) between No. two gears (23) and two gear (22), No. two gear (23) are connected with gear (22) meshing through driving belt (24).