CN113622696B

CN113622696B - Tool type safety flat net

Info

Publication number: CN113622696B
Application number: CN202110965756.XA
Authority: CN
Inventors: 周伟; 刘涛; 穆晓燕
Original assignee: Jiangsu Tianli Construction Group Co ltd
Current assignee: Jiangsu Tianli Construction Group Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-12-02
Anticipated expiration: 2041-08-23
Also published as: CN113622696A

Abstract

The utility model relates to an instrument formula safety plain net relates to building engineering's technical field, including support frame and plain net body, a plurality of elastic rods of fixedly connected with on the support frame, each the elastic rod is fixed in the plain net body respectively around, the one end that the elastic rod was kept away from to the plain net body is connected with the support frame. When the people dropped on the plain net body, the elasticity of elasticity pole made the people who drops on the plain net body trend that upwards lifts up, played the cushioning effect to the personnel that fall, reduced the impact force that the personnel that fall and led to the fact the risk of destruction to the plain net body, improved the personnel's that fall security.

Description

Tool type safety flat net

Technical Field

The application relates to the technical field of constructional engineering, in particular to a tool type safety plain net.

Background

In building engineering, it is common for balconies, door and window openings, elevator shafts, etc. to be equipped with guard rails last. Therefore, in order to prevent the high-altitude falling of constructors and the occurrence of safety accidents in the construction process, a safety plain net is required to be installed below the outer side of the edge opening. The safety plain net is usually woven by elastic materials, and the periphery of the safety plain net is fixed on the support frame.

In view of the above related technologies, the inventor thinks that in the actual construction process, constructors fall on the safety flat net at high altitude, so that the safety flat net is pulled instantly, the safety flat net bears huge impact force and deforms downwards, and after the safety flat net is exposed to the sun by multiple winds, the elasticity of the safety flat net is not enough to support the impact force of the falling constructors on the safety flat net, so that the constructors break through the safety flat net, and safety accidents are caused.

Disclosure of Invention

In order to solve the problem that after construction personnel fall from high altitude, the elasticity of the safety flat net is not enough to support the impact force of the falling personnel on the safety flat net, so that the construction personnel breaks the safety flat net, the application provides the tool type safety flat net.

The application provides a safe plain net of instrument formula adopts following technical scheme:

the utility model provides a safe plain net of instrument formula, includes support frame and plain net body, fixedly connected with a plurality of elastic force poles on the support frame, each elastic force pole is fixed in the plain net body respectively all around, and the one end that the elastic force pole was kept away from to the plain net body is connected with the support frame.

Through adopting above-mentioned technical scheme, when the people dropped on the plain net body, the elasticity of elasticity pole made the people who drops on the plain net body trend that upwards lifts up, played the cushioning effect to the personnel that fall, reduced the impact force that the personnel that fall and led to the fact the risk of destruction to the plain net body, improved the personnel's that fall security.

Preferably, the four corners of the flat net body are fixedly connected with connecting ropes, the supporting frame is rotatably connected with a rotating shaft, and the connecting ropes are wound on the rotating shaft.

Through adopting above-mentioned technical scheme, the personnel that fall produces vertical decurrent impact force to the plain net body, and then drives the pivot through connecting the rope and rotate, reduces the personnel's that fall acceleration, further improves the personnel's that fall security.

Preferably, a coil spring is fixedly connected to the rotating shaft, and one end, far away from the rotating shaft, of the coil spring is fixedly connected with the support frame.

By adopting the technical scheme, the torsion of the coil spring drives the rotating shaft to rotate reversely, and the rotating shaft pulls the plain net body through the connecting rope, so that the plain net body is subjected to vertical upward component force, and the bearing burden of the plain net body is relieved.

Preferably, a first ratchet wheel is fixedly connected to the rotating shaft, the support frame is connected with a first sliding block in a reciprocating sliding mode in the vertical direction, a pawl is connected to the first sliding block in a rotating mode, an elastic piece used for driving the pawl to be connected with the first ratchet wheel in a clamped mode is arranged on the first sliding block, and a driving assembly used for driving the first sliding block to slide in a reciprocating mode is arranged on the support frame.

Through adopting above-mentioned technical scheme, the first slider of drive assembly drive slides towards first ratchet direction, and elastic component drive pawl and first ratchet joint, and then prevent first ratchet to continue to rotate, and the plain net body is located elasticity the biggest this moment, and speed is zero's position, reduces the plain net body and continues the risk of tenesmus.

Preferably, the driving assembly comprises a second ratchet wheel rotatably connected with the support frame, the second ratchet wheel is fixedly connected with a first push rod for pushing the first sliding block to slide towards the first ratchet wheel, and the support frame is provided with a driving piece for driving the second ratchet wheel to rotate.

Through adopting above-mentioned technical scheme, the driving piece drives the rotation of second ratchet, and the rotation of second ratchet drives first push rod and rotates, and first push rod promotes first slider and slides towards first ratchet direction, and then drives pawl and first ratchet joint, uses manpower sparingly, convenient operation.

Preferably, a slot is formed in the first sliding m block, an inserting block clamped with the slot is connected to the support frame in a sliding mode, and a first pressure spring used for driving the inserting block to be clamped towards the slot is arranged on the support frame.

Through adopting above-mentioned technical scheme, the elasticity drive inserted block and the slot joint of first pressure spring, and then make first slider be fixed in on the support frame, improve the fixed stability of first slider, and then make pawl and first ratchet remain the engaged state all the time.

Preferably, the driving piece comprises a second sliding block connected with the support frame in a sliding mode, a pushing strip is connected to the second sliding block in a sliding mode and abutted to the second ratchet wheel, an elastic sheet is fixedly connected to the support frame, and one end, far away from the second ratchet wheel, of the pushing strip is abutted to the elastic sheet.

Through adopting above-mentioned technical scheme, the second slider upwards slides, promotes the second ratchet and rotates, and after the second ratchet rotated, the elasticity of shell fragment promoted to push away the strip and slides towards the second ratchet direction for push away the strip and keep the state of butt with the second ratchet all the time, improve the pivoted stationarity of second ratchet.

Preferably, a second push rod is connected to the support frame in a sliding mode, the second push rod is fixedly connected with the second sliding block, a cam is fixedly connected to the rotating shaft, and the cam is abutted to one end, far away from the second sliding block, of the second push rod.

Through adopting above-mentioned technical scheme, the pivot rotates and drives the cam and rotate, and the cam promotes the reciprocal slip of second push rod along vertical direction, and then drives the reciprocal slip of second slider, convenient operation.

In summary, the present application includes at least one of the following beneficial technical effects:

when a person falls on the flat net body, the elasticity of the elastic rod enables the person falling on the flat net body to have a tendency of lifting upwards, so that the falling person is buffered, the risk of damage to the flat net body caused by the falling impact force of the falling person is reduced, and the safety of the falling person is improved;

the driving assembly drives the first sliding block to slide towards the first ratchet wheel direction, the elastic piece drives the pawl to be clamped with the first ratchet wheel, and further the first ratchet wheel is prevented from continuing to rotate, at the moment, the flat net body is located at the position with the maximum elasticity and zero speed, and the risk that the center of the flat net body continues to fall is reduced;

the slider upwards slides, promotes the second ratchet and rotates, and the back is rotated to the second ratchet, and the elasticity of shell fragment promotes to push away the strip and slides towards the second ratchet direction for push away the strip and keep the state of butt with the second ratchet all the time, improve the pivoted stationarity of second ratchet.

Drawings

Fig. 1 is a schematic structural diagram for embodying the entirety in the embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying the retaining mechanism in the embodiment of the present application.

Fig. 3 is a sectional view for showing an internal structure of a fourth fixing block in the embodiment of the present application.

Description of reference numerals: 1. a support frame; 11. a rotating shaft; 12. a coil spring; 13. a first fixing plate; 14. a second fixing plate; 141. a fourth fixed block; 142. a third chute; 143. inserting a block; 1431. a bevel; 144. a slot; 145. a first pressure spring; 146. pulling a rope; 2. a flat net body; 21. connecting ropes; 3. an elastic rod; 4. a backstop mechanism; 41. a first ratchet wheel; 42. a support; 43. a first slider; 431. a pawl; 432. a second fixed block; 433. a second pressure spring; 44. a drive assembly; 441. a second ratchet wheel; 442. a first push rod; 443. a second chute; 444. a third fixed block; 445. a third pressure spring; 45. a drive member; 451. a cam; 452. a second slider; 453. a first chute; 454. a second push rod; 455. pushing the strip; 456. a first fixed block; 457. an elastic sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses instrument formula safety plain net. Referring to fig. 1, the tool type safety plain net comprises a support frame 1 and a plain net body 2, wherein the support frame 1 is fixed on the ground. Install elastic rod 3 on support frame 1, elastic rod 3 has a plurality ofly along support frame 1's inside circumference array, and each elastic rod 3 is equal vertical setting. The one end that each elastic rod 3 kept away from ground is fixed with plain net body 2, and the four corners of plain net body 2 is connected with support frame 1 through connecting rope 21, connects the rope 21 and sets up in the slant, installs the drive on support frame 1 and connects rope 21 and upwards stimulate stopping mechanism 4 of plain net body 2. When the constructor drops on the flat screen body 2, the flat screen body 2 is vertically and downwardly deformed under the heavy pressure of the constructor, the elastic rods 3 are elastically deformed, and the elasticity of the elastic rods 3 is used for offsetting partial impact force on the flat screen body 2 to play a part of force unloading role. The stopping mechanism 4 drives the connecting rope 21 to obliquely upwards pull the flat screen body 2, so that the dropping speed of the flat screen body 2 is reduced, the peripheral height of the flat screen body 2 is balanced, and the risk that falling personnel fall out of the flat screen body 2 is reduced.

Referring to fig. 1 and 2, the support 42 is welded on the support frame 1, the plurality of supports 42 are arranged along the circumferential direction of the inside of the support frame 1, the elastic rods 3 are fixed on the supports 42, and the elastic rods 3 correspond to the supports 42 one to one. The retaining mechanism 4 comprises a first fixing plate 13 and a second fixing plate 14, the first fixing plate 13 and the second fixing plate 14 are both fixed to the top side wall of the support frame 1 in a welding mode, and the first fixing plate 13 and the second fixing plate 14 are arranged in parallel. The same rotating shaft 11 penetrates through the space between the first fixing plate 13 and the second fixing plate 14, the rotating shaft 11 is rotatably connected with the first fixing plate 13 and the second fixing plate 14, and the second fixing plate 14 extends out of one end, far away from the first fixing plate 13, of the rotating shaft 11. One end of the connecting rope 21 far away from the plain net body 2 is wound on the rotating shaft 11. A coil spring 12 is welded and fixed on the rotating shaft 11, and one end of the coil spring 12, which is far away from the rotating shaft 11, is welded and fixed with one side of the first fixing plate 13, which faces the second fixing plate 14.

The flat screen body 2 falls down and pulls the rotating shaft 11 to rotate through the connecting rope 21, when the torsion of the coil spring 12 is greater than the pulling force of the flat screen body 2 on the connecting rope 21, the coil spring 12 drives the rotating shaft 11 to rotate, so that the connecting rope 21 continues to be wound on the rotating shaft 11, the distance between the rotating shaft 11 and the flat screen body 2 is shortened, and the flat screen body 2 is prevented from continuing to fall down.

Referring to fig. 2, the retaining mechanism 4 further includes a driving assembly 44 and a driving member 45, the driving member 45 includes a cam 451, the cam 451 is coaxially welded and fixed with an end of the rotating shaft 11 away from the first fixing plate 13, the second fixing plate 14 has a second slider 452 sliding in the vertical direction, a protrusion is welded on one side of the second slider 452 facing the second fixing plate 14, and a first sliding groove 453 for the protrusion to slide is formed in the second fixing plate 14 in the vertical direction. The second slider 452 is welded with a second push rod 454, the second push rod 454 is arranged along the vertical direction, and one end of the second push rod 454 facing the cam 451 is abutted against the outer peripheral side of the cam 451. The rotating shaft 11 rotates to drive the cam 451 to rotate, the cam 451 pushes the second push rod 454 to slide back and forth, and then the second sliding block 452 slides back and forth in the vertical direction, so that the transmission is stable.

Referring to fig. 2, the driving assembly 44 includes a second ratchet wheel 441, and the second ratchet wheel 441 is rotatably connected to the second fixing plate 14. The driving member 45 further comprises a pushing bar 455, and in order to drive the second ratchet wheel 441 to rotate, the pushing bar 455 is slidably connected to the second slider 452, and an end of the pushing bar 455 far from the second slider 452 is located below the ratchet teeth of the second ratchet wheel 441. In order to enable the pushing bar 455 to be always abutted against the second ratchet 441, the first fixing block 456 is welded on the second fixing plate 14, the elastic sheet 457 is welded on the first fixing block 456, and one end of the elastic sheet 457, which is far away from the first fixing block 456, is a free end. One end of the spring 457 facing the second slider 452 abuts one end of the push bar 455 far away from the second ratchet 441.

During operation, the elastic sheet 457 pushes the pushing bar 455 to abut against the second ratchet 441, and the second push rod 454 slides back and forth along the vertical direction to drive the second slider 452 to slide back and forth along the vertical direction, so as to drive the pushing bar 455 to slide back and forth along the vertical direction, and the pushing bar 455 pushes the second ratchet 441 to rotate. When the pushing bar 455 slides downward in the vertical direction, the elastic sheet 457 pushes the pushing bar 455 to continue to slide toward the second ratchet 441, so that the end of the pushing bar 455 far from the elastic sheet 457 keeps in an abutting state with the second ratchet 441 all the time, thereby improving the smoothness and continuity of the rotation of the second ratchet 441.

Referring to fig. 2, the driving assembly 44 further includes a first push rod 442, one end of the first push rod 442 is welded and fixed to an end surface of the second ratchet 441 far away from the second fixing plate 14, and a length of the first push rod 442 is greater than a radius of the second ratchet 441. The second fixing plate 14 has a first slider 43 slid in the vertical direction, and the first slider 43 is located below the first push rod 442. A protrusion is welded on one side of the first slider 43 facing the second fixing plate 14, and a second sliding groove 443 for the protrusion to slide is opened on the second fixing plate 14 along the vertical direction. In order to reduce the risk of rigid contact between the first sliding block 43 and the first push rod 442, a third fixing block 444 is welded on the second fixing plate 14, the third fixing block 444 is located below the first sliding block 43, a third pressure spring 445 is welded on the third fixing block 444, and one end, away from the third fixing block 444, of the third pressure spring 445 is welded and fixed with the first sliding block 43. The second ratchet 441 rotates to drive the first push rod 442 to rotate, and when one end of the first push rod 442 facing the first slider 43 abuts against the upper top surface of the first slider 43, the second ratchet 441 continuously rotates to push the first slider 43 to slide in a direction away from the second ratchet 441.

Referring to fig. 2, the pawl 431 is rotated on the side wall of the first slider 43 away from the second fixing plate 14, the first ratchet wheel 41 is coaxially welded and fixed on the rotating shaft 11, and the first ratchet wheel 41 is located at one end of the rotating shaft 11 extending out of the second fixing plate 14, so that the cam 451 is located between the first ratchet wheel 41 and the second fixing plate 14. In order to enable the pawl 431 to be clamped with the first ratchet 41, a second fixed block 432 is welded on one side, away from the second fixed plate 14, of the first slider 43, an elastic member is installed on the second fixed block 432, in the embodiment of the present application, the elastic member is a second pressure spring 433, the second pressure spring 433 is welded and fixed with the second fixed block 432, one end, away from the second fixed block 432, of the second pressure spring 433 is welded and fixed with one side, towards the second fixed block 432, of the pawl 431, and the pawl 431 is pushed to be clamped with the first ratchet 41 by elasticity of the second pressure spring 433.

Referring to fig. 3, in order to allow the pawl 431 to always abut against the first ratchet 41, the fourth fixed block 141 is welded to the second fixed plate 14, the third slide groove 142 is formed in the fourth fixed block 141, and the third slide groove 142 is formed along the longitudinal direction of the fourth fixed block 141. An inserting block 143 is slidably connected in the third sliding groove 142, and a slot 144 for inserting the inserting block 143 is opened on one side of the first sliding block 43 away from the first ratchet wheel 41. The end of the insert 143 facing the slot 144 is provided with a slope 1431, and the slope 1431 is provided facing the side away from the second ratchet 441. In order to realize automatic insertion of the plug 143 and the slot 144, a first pressure spring 145 is welded to one end, away from the slot 144, of the plug 143, and one end, away from the plug 143, of the first pressure spring 145 is welded and fixed to one end, away from the first sliding block 43, of the third sliding groove 142. In order to realize the separation of the insert 143 from the slot 144, a pull rope 146 is glued to one end of the insert 143 away from the slot 144, and one end of the pull rope 146 away from the insert 143 penetrates through the fourth fixing block 141.

In operation, the first slider 43 slides towards the first ratchet wheel 41, so that the pawl 431 is engaged with the first ratchet wheel 41. At this time, the insertion block 143 is pushed by the elastic force of the first compression spring 145 to be inserted into the insertion slot 144, so that the first slider 43 is fixedly connected with the fourth fixed block 141, the first slider 43 is prevented from sliding towards the second ratchet wheel 441, and the pawl 431 is always kept in a clamping state with the first ratchet wheel 41. So that the rotating shaft 11 can only wind the connecting rope 21 and cannot release the connecting rope 21, and further the flat net body 2 cannot continue to fall, and the safety of falling personnel is improved.

The implement principle of the tool type safety plain net in the embodiment of the application is as follows: when a constructor falls onto the flat net body 2, the gravitational potential energy of the falling constructor is converted into kinetic energy to impact the flat net body 2. In the initial state, the pawl 431 is located above the first ratchet wheel 41 and is not engaged with the first ratchet wheel 41. The flat net body 2 falls down and drives the rotating shaft 11 to rotate through the connecting rope 21, the rotating shaft 11 rotates and drives the cam 451 to rotate, the cam 451 drives the second push rod 454 to slide back and forth along the vertical direction, and then drives the push bar 455 to slide back and forth along the vertical direction, the push bar 455 drives the second ratchet wheel 441 to rotate, the second ratchet wheel 441 drives the first push rod 442 to rotate synchronously, when the first push rod 442 rotates to abut against the first slide block 43, the first slide block 43 is pushed to slide towards the direction of the third fixed block 444, and then the pawl 431 is driven to be connected with the first ratchet wheel 41 in a clamping manner. At this time, the insertion block 143 is automatically inserted into the insertion groove 144 by the elastic force of the first compression spring 145, so that the pawl 431 and the first ratchet 41 maintain the engagement state.

Then the torsion of the coil spring 12 and the elasticity of the elastic rod 3 prevent the flat net body 2 from continuously falling together, the rotating shaft 11 is reversely rotated under the action of the coil spring 12, the rotating shaft 11 winds the connecting rope 21 to drive the flat net body 2 to move upwards, and the pawl 431 and the first ratchet wheel 41 are always kept in a clamping state, so that the first ratchet wheel 41 can only rotate along the reverse rotation direction of the rotating shaft 11, the connecting rope 21 is further continuously wound on the rotating shaft 11, the rebounding frequency of the flat net body 2 is reduced, and the safety of falling personnel is improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a safe plain net of instrument formula, includes support frame (1) and plain net body (2), its characterized in that: fixedly connected with a plurality of elastic rods (3) on support frame (1), each elastic rod (3) are fixed in all around plain net body (2) respectively, and the one end that elastic rod (3) were kept away from in plain net body (2) is connected with support frame (1), the equal fixedly connected with in four corners of plain net body (2) connects rope (21), rotate on support frame (1) and be connected with pivot (11), connect rope (21) winding on pivot (11), fixedly connected with wind spring (12) on pivot (11), the one end and support frame (1) fixed connection of pivot (11) are kept away from in wind spring (12), first ratchet (41) of fixedly connected with on pivot (11), support frame (1) along the vertical direction reciprocal sliding connection have first slider (43), rotate on first slider (43) and be connected with pawl (431), be equipped with the elastic component that is used for driving pawl (431) and first ratchet (41) joint on first slider (43), be equipped with the drive slider (441) that is used for driving first slider (43) and first ratchet (44) and second ratchet (44) are connected including reciprocal drive assembly (44) on ratchet (441) and first slider (41) are connected with ratchet (44), ratchet drive ratchet (44) and first ratchet (44) and second ratchet (41) are connected with first ratchet (44) and drive ratchet (44) including ratchet Push rod (442), be equipped with on support frame (1) and be used for driving second ratchet (441) pivoted driving piece (45), be equipped with slot (144) on first slider (43), sliding connection has plug block (143) for with slot (144) joint on support frame (1), be equipped with on support frame (1) and be used for driving plug block (143) towards first pressure spring (145) of slot (144) joint, driving piece (45) include second slider (452) with support frame (1) sliding connection, sliding connection has push bar (455) on second slider (452), push bar (455) and second ratchet (441) butt, fixedly connected with (457) on support frame (1), push bar (455) keep away from the one end and shell fragment (457) butt of second ratchet (441), sliding connection has second push rod (454) on support frame (1), second push rod (454) and second slider (452) fixed connection, fixedly connected with cam (451) on pivot (11), the one end that second slider (454) was kept away from second shell fragment (452) butt is kept away from to cam (451) and second push rod (451).