CN215025471U

CN215025471U - Telescopic safety belt for high-altitude operation

Info

Publication number: CN215025471U
Application number: CN202121040641.1U
Authority: CN
Inventors: 田毅; 刘军; 任志勇; 兰贵明; 胡岗
Original assignee: Chongqing Liansheng Construction Project Management Co Ltd
Current assignee: Chongqing Liansheng Construction Project Management Co Ltd
Priority date: 2021-05-15
Filing date: 2021-05-15
Publication date: 2021-12-07
Anticipated expiration: 2031-05-15

Abstract

The utility model relates to a telescopic safety belt for high altitude construction, it includes couple, safety rope and is used for wearing in human vest, still includes controlling means, controlling means includes mount pad and serving, the serving rotates and connects in the mount pad, safety rope one end fixed connection in human vest, the safety rope other end passes couple and fixed connection in serving, mount pad fixed connection is in the one end or the human vest of human vest in safety rope connection. This application has the effect that the operating personnel of being convenient for saved oneself.

Description

Telescopic safety belt for high-altitude operation

Technical Field

The application relates to the field of safety belts, in particular to a telescopic safety belt for aerial work.

Background

The safety belt comprises a belt, a rope and metal accessories, and when an operator needs to work high above the ground, the safety belt can be worn to effectively guarantee the safety of the operator. However, the existing safety belt cannot be stretched along with the movement of a human body when in use, so that the safety belt is inconvenient to use during aloft work.

In order to solve the above problems, chinese patent with application number CN201921991072.1 in the related art discloses a safety retractable safety belt for aerial work, which has the technical key points that: including the safety rope, the safety rope box, couple and human vest, human vest includes braces and waistband, and the braces alternates with the waistband to be connected, braces fixed connection in the safety rope box, is provided with the carousel in the safety rope box, is provided with the spiral spring in the carousel, the one end of spiral spring and the inside one end fixed connection of carousel, the other end of spiral spring and one side fixed connection of safety rope box inner wall, the outer wall of carousel and the one end winding of safety rope are connected, the other end and the couple fixed connection of safety rope. The safety rope wound on the rotary disc can move along with the human body through the volute spiral spring and the rotary disc so as to achieve the effect of stretching.

According to the related technology, when an operator wearing the safety belt falls accidentally, the operator can be suspended at high altitude by the safety belt, but the operator can only ask for help from other people or climb on the safety rope by himself or herself at the time of returning to the safety position, so that the operation is relatively inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that an operator is not convenient to save oneself when hanging at high altitude through a safety belt, the telescopic safety belt for high altitude construction is provided.

The application provides a telescopic safety belt for high altitude construction adopts following technical scheme:

the utility model provides a telescopic safety belt for high altitude construction, includes couple, safety rope and is used for wearing in human vest, still includes controlling means, controlling means includes mount pad and serving, serving rotates to be connected in the mount pad, safety rope one end fixed connection is in human vest, the safety rope other end passes couple and fixed connection in serving, mount pad fixed connection is in the one end or the human vest of human vest.

Through adopting above-mentioned technical scheme, when the operation personnel who dresses the human vest falls because of the accident, the safety rope suspends in midair in the high altitude through the operation personnel that the couple will dress the human vest, can rotate the serving spare this moment, through twine the safety rope in the process of serving spare, the pulling mount pad progressively rises to upwards pull the operation personnel gradually, the operation personnel of being convenient for save oneself.

Optionally, the control device further comprises a control assembly arranged on the mounting seat, the control assembly comprises a first gear, a second gear meshed with the first gear, a third gear and a fourth gear meshed with the third gear, the diameter of the first gear is smaller than that of the second gear, the diameter of the third gear is smaller than that of the fourth gear, the first gear and the second gear are rotatably connected to the mounting seat, the second gear is coaxially and fixedly connected to the third gear, the fourth gear is fixedly connected to the rope winding piece, and the fourth gear is overlapped with the rotating axis of the rope winding piece.

Through adopting above-mentioned technical scheme, when the operation personnel need save oneself, the drive rope spare rotation after doing the second grade reduction gear through gear two, gear three and gear four drives, can reach the effect of speed reduction increase distance to can effectually reduce the drive power that control rope spare rotation needs, the operation personnel of further being convenient for save oneself.

Optionally, the control device further includes a locking assembly disposed on the mounting seat, the locking assembly includes a ratchet wheel and a plurality of pawls engaged with the ratchet wheel, the ratchet wheel is fixedly connected to the rope winding member, the ratchet wheel coincides with a rotation axis of the rope winding member, the pawls are rotatably connected to the mounting seat, and the mounting seat is provided with an elastic member for keeping the pawl and the ratchet wheel in an engaged state.

Through adopting above-mentioned technical scheme, during the use, the slewing gear one rotates in order to drive the serving and rotate, simultaneously also can rotate with serving fixed connection's ratchet, and the elastic component makes pawl and ratchet keep the engaged state, and under the restriction of pawl, the ratchet can only contract the direction rotation of safety rope, can be by the pawl chucking when the ratchet is going to be towards the direction gyration of extension safety rope to make the ratchet be difficult for rotating and leading to the operating personnel whereabouts once more along the direction of extension safety rope.

Optionally, the mounting seat is penetrated and slidably connected with a control block for controlling the pawl to be away from the ratchet wheel.

By adopting the technical scheme, when the safety rope needs to be stretched out, the pawl is stirred by the sliding control block to rotate towards the direction far away from the ratchet wheel, the rotation locking of the pawl to the ratchet wheel is cancelled, then the ratchet wheel can rotate along the direction of extending the safety rope, and the traction length of the safety rope to the waistcoat of a human body is adjusted, so that the safety belt can be reused.

Optionally, the mounting seat is fixedly connected with a limiting block, and the limiting block is located on one side of the pawl far away from the central axis of the ratchet wheel.

Through adopting above-mentioned technical scheme, the stopper is in order to be used for restricting the distance between pawl and the ratchet for the pawl is difficult for too big because of the pivoted angle, and leads to the pawl to be difficult to mesh mutually with the ratchet once more, the condition that the pawl became invalid appears.

Optionally, the rope winding member is fixedly connected with two baffles for limiting the safety rope, the baffles are perpendicular to the rotation axis of the rope winding member, and the gear four and the ratchet wheel are located on one side of the two baffles, which are deviated from each other.

By adopting the technical scheme, the baffle is used for isolating the safety rope from the gear four and the ratchet wheel respectively, so that the safety rope is not easy to interfere with the gear four or the ratchet wheel.

Optionally, the first gear is coaxially and fixedly connected with a pin shaft, the pin shaft penetrates through the mounting seat and is rotatably connected to the mounting seat, the pin shaft is fixedly connected with a rocker, and the rocker is located outside the mounting seat.

Through adopting above-mentioned technical scheme, through round pin axle and the rocker that sets up, the user can directly rotate the rotation that the rocker comes control gear one to the operating personnel saves oneself.

Optionally, the hook is rotatably connected with at least one pulley, and the safety rope is arranged on the pulley.

Through adopting above-mentioned technical scheme, fixed connection is in the pulley of couple for be roll connection between safety rope and the couple, in order to reduce the resistance that safety rope received the couple when flexible, thereby it is more convenient when control safety rope is flexible, reduces the wearing and tearing that cause safety rope in the use simultaneously.

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

1. when the operating personnel who dresses human vest falls because of the accident and is suspended in midair in the high altitude by safety belt and couple, can rotate the serving, through twine the safety rope in the process of serving, the pulling mount pad rises gradually to upwards pull the operating personnel gradually, so that the operating personnel saves oneself.

2. Under the restriction of the pawl, the ratchet wheel can only contract the direction rotation of the safety rope, and can be tightly clamped by the pawl when the ratchet wheel rotates towards the direction of extending the safety rope, so that the ratchet wheel is not easy to rotate along the direction of extending the safety rope to cause the operator to fall down again.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a first schematic sectional view of a control device according to an embodiment of the present disclosure;

FIG. 3 is a schematic sectional view of a control device according to an embodiment of the present application;

FIG. 4 is an exploded view of the control assembly and locking assembly of an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a rocker according to an embodiment of the present application;

FIG. 6 is a third schematic sectional view of a control device according to an embodiment of the present application;

fig. 7 is an enlarged schematic view of a portion a in fig. 6.

Description of reference numerals: 1. hooking; 11. a pulley; 2. a safety cord; 3. a human body vest; 4. a control device; 41. a mounting seat; 411. an elastic member; 412. a control block; 413. a limiting block; 414. a baffle plate; 415. rope retracting holes; 416. a partition plate; 417. a guide hole; 42. a rope winding member; 43. a control component; 431. a first gear; 432. a second gear; 433. a third gear; 434. a fourth gear; 435. a pin shaft; 436. a rocker; 44. a locking assembly; 441. a ratchet wheel; 442. a pawl; 443. and a stop block.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a telescopic safety belt for aerial work. Referring to fig. 1 and 2, the telescopic safety belt for aerial work includes a hook 1, a safety rope 2, a human body vest 3 for wearing on a human body, and a control device 4.

Couple 1 is provided with pulley 11 that is used for connecting

safety rope

2, 11 axial both ends of pulley are all rotated through the pivot and are connected in couple 1, pulley 11 is the sheave, 2 direct fixed connection in human vest 3 of safety rope one end or through 4 fixed connection of controlling means in

human vest

3, 2 other ends of safety rope pass pulley 11 and fixed connection in controlling means 4's control end, 2 circumference overlap joints in pulley 11 along pulley 11 of safety rope, 4 fixed connection of controlling means are in 2 one end or the human vest 3 of connecting in human vest 3 of safety rope.

Controlling means 4 fixed connection is in human vest 3 in this embodiment, and the both ends of safety rope 2 are all connected in controlling means 4 for 4 fixed connection in human vest 3 are passed through controlling means to the one end that safety rope 2 is not connected in controlling means 4 control end.

Referring to fig. 2 and 3, the control device 4 includes a mounting seat 41 in a shell-shaped structure and a rope winding member 42 located inside the mounting seat 41, the control end of the control device 4 is the rope winding member 42, and the rope winding member 42 may be configured as a drum, a turntable, or a rotating shaft. The utility model provides a serving as a drum, serving as a drum 42 and rotating to be connected in mount pad 41, mount pad 41 is fixedly connected in human body vest 3, and rope winding hole 415 has been seted up to mount

pad

41, and 2 one end fixed connection of safety rope is in

mount pad

41, and 2 other ends of safety rope pass pulley 11 and rope winding hole 415 in proper order and then are fixedly connected in serving as a drum 42.

When the operating personnel who has human vest 3 dresses falls because of the accident, is suspended in midair in the high altitude by safety rope 2 and couple 1, and operating personnel can be through rotating serving member 42, twines safety rope 2 of fixed connection in serving member 42 on serving member 42, progressively rolling safety rope 2 to upwards pull operating personnel gradually, the operating personnel of being convenient for save oneself. The pulley 11 connected with the hook 1 is rotated, so that the safety rope 2 is rotatably connected with the hook 1, the resistance of the hook 1 on the safety rope 2 during stretching is reduced, and the safety rope 2 is more convenient and faster to control during stretching; it also reduces the wear to which the safety line 2 is subjected in use.

Referring to fig. 3 and 4, the control device 4 further includes a control assembly 43 disposed in the mounting base 41, wherein the control assembly 43 includes a first gear 431, a second gear 432 engaged with the first gear 431, a third gear 433, and a fourth gear 434 engaged with the third gear 433. The first gear 431 is rotatably connected to the mounting base 41, the second gear 432 is coaxially and fixedly connected to the third gear 433, the fourth gear 434 is fixedly connected to one end of the rope winding member 42, and the fourth gear 434 and the rope winding member 42 have the same central axis.

A partition 416 is arranged between the first gear 431 and the fourth gear 434, the partition 416 is perpendicular to the rotation axis of the first gear 431, the partition 416 is fixedly connected to the inner wall of the mounting base 41, the second gear 432 and the third gear 433 are respectively located on two sides of the partition 416, and the second gear 432 and the third gear 433 are both rotatably connected to the partition 416.

The diameter of the gear one 431 is smaller than that of the gear two 432, the diameter of the gear three 433 is smaller than that of the gear four 434, and preferably, the diameter of the gear three 433 is smaller than that of the gear two 432.

The control assembly 43 adopts a gear transmission mode, a first gear 431, a second gear 432, a third gear 433 and a fourth gear 434 are sequentially arranged, when an operator needs to save oneself, the first gear 431 is rotated, the rope winding piece 42 is driven to rotate after two-stage speed reduction transmission is carried out through the second gear 432, the third gear 433 and the fourth gear 434, the speed reduction and distance increase effects can be achieved, the driving force required by rotation of the rope winding piece 42 can be effectively reduced and controlled, and the operator can further save oneself conveniently.

Referring to fig. 3, 4 and 5, a first gear 431 is coaxially and fixedly connected with a pin 435, the pin 435 is inserted through and rotatably connected to the mounting base 41, the pin 435 is fixedly connected with a rocker 436, and the rocker 436 is located outside the mounting base 41. The first gear 431 is fixedly connected with a rocker 436 through a pin 435, so that the rotation of the first gear 431 can be controlled by rotating the rocker 436, so as to be convenient for a user to use.

The rope rolling member 42 is fixedly connected with two baffles 414, the baffle 414 is located inside the mounting seat 41, the rope collecting hole 415 is located between the two baffles 414, and the control assembly 43 is located on one side of one of the baffles 414 far away from the other baffle 414. So that the safety rope 2 can be fixedly connected to the rope winding member 42 through the rope winding hole 415 and the safety rope 2 can be located between the two blocking plates 414.

In use, the rotating rope winding member 42 can wind the safety rope 2 around the rope winding member 42, and the two baffles 414 can limit the position of the safety rope 2 wound around the rope winding member 42, so as to reduce the possibility that the safety rope 2 interferes with the control assembly 43 during the winding process.

The control device 4 further includes a locking assembly 44 disposed in the mounting seat 41, and the locking assembly 44 is located on one side of the two baffles 414 away from the control assembly 43, so that when the rope winding member 42 winds the safety rope 2, interference between the safety rope 2 and the locking assembly 44 is not easily generated. The locking assembly 44 includes a ratchet 441 and a plurality of pawls 442 engaged with the ratchet 441, the plurality of pawls 442 are distributed around the ratchet 441, and in this embodiment, the number of the pawls 442 is two; ratchet 441 is fixedly connected to an end of rope rolling member 42 away from gear 434, ratchet 441 and rope rolling member 42 are concentric, and pawl 442 is rotatably connected to an inner wall of mounting seat 41.

Referring to fig. 6 and 7, a stopper 443 is fixedly connected to an end of the pawl 442 away from the ratchet 441, the stopper 443 extends from the pawl 442 toward a direction away from the central axis of the ratchet 441, an elastic member 411 for keeping the pawl 442 engaged with the ratchet 441 is disposed in the mounting seat 41, the elastic member 411 is a spring, a torsion spring, an elastic pull or a rubber block, in this embodiment, the elastic member 411 is a spring, one end of the elastic member 411 is fixedly connected to the stopper 443, the other end of the elastic member 411 is fixedly connected to the mounting seat 41, and the elastic member 411 is in a stretched state for pushing the pawl 442 to rotate toward the ratchet 441.

Through the arrangement of the ratchet wheel 441 and the pawl 442, when the safety rope winding machine is used, the first rotating gear 431 drives the rope winding piece 42 to rotate, meanwhile, the ratchet wheel 441 fixedly connected with the rope winding piece 42 can also rotate, under the limitation of the pawl 442, the ratchet wheel 441 can only rotate in a single direction in the direction of contracting the safety rope 2, and when the ratchet wheel 441 is going to rotate in the direction of extending the safety rope 2, the ratchet wheel 441 can be clamped by the pawl 442, so that the ratchet wheel 441 cannot easily rotate in the direction of extending the safety rope 2 to cause the worker to fall down again; meanwhile, the ratchet wheel 441 is limited to rotate in a single direction by the pawl 442, so that the possibility that the safety rope 2 extends out due to the rotation of the rope rolling piece 42 caused by the midway pause when the safety rope 2 is retracted by an operator is reduced.

Referring to fig. 6 and 7, the mounting seat 41 is inserted and slidably connected with a control block 412 for controlling the pawl 442 to be away from the ratchet 441, a portion of the control block 412 located in the mounting seat 41 overlaps one side of the stopper 443 facing the pawl 442, a guide hole 417 for inserting the control block 412 is formed in the mounting seat 41 at a position corresponding to the stopper 443, the guide hole 417 is a long hole, and the control block 412 is inserted and slidably connected with an opening edge of the guide hole 417.

The inner wall of the mounting seat 41 is fixedly connected with a limiting block 413, and the limiting block 413 is located on one side of the pawl 442, which is far away from the central axis of the ratchet wheel 441. In this embodiment, the elastic member 411 is located between the stopper 443 and the limiting block 413, and two ends of the elastic member 411 are fixedly connected to the stopper 443 and the limiting block 413, respectively.

Slip control block 412 controls rotation of stop 443 and pawl 442 such that pawl 442 disengages ratchet 441 such that ratchet 441 is rotatable in either a retracting or an extending direction of safety line 2. When the worker has wound the safety rope 2 around the rope winding member 42, the pulling length of the safety rope 2 to the vest 3 of the human body is adjusted by sliding the control block 412 so that the ratchet 441 can be rotated in the direction of extending the safety rope 2, so as to facilitate the reuse of the safety belt. The limiting block 413 is used for limiting the distance between the pawl 442 and the ratchet 441, so that the pawl 442 is not easy to be engaged with the ratchet 441 again due to an excessively large rotation angle.

The implementation principle of the telescopic safety belt for high-altitude operation in the embodiment of the application is as follows: when the operator needs to save oneself, the rocker 436 is rotated to control the gear wheel 431 to rotate, so as to sequentially drive the gear wheel 432, the gear wheel 433 and the gear wheel 434 to rotate, and drive the rope rolling piece 42 and the ratchet wheel 441 to rotate through the gear wheel 434, the ratchet wheel 441 is limited by the pawl 442 meshed with the ratchet wheel 441, so that the ratchet wheel 441 can only rotate in a single direction, therefore, the operator can rotate the rope rolling piece 42 in the rotatable direction of the ratchet wheel 441 to gradually wind the safety rope 2 on the rope rolling piece 42, so as to reduce the traction length of the safety rope 2 on the waistcoat 3 of the human body, so that the operator can be lifted to be suspended in an overhead position, and the operator can save oneself conveniently.

After self rescue is completed, the control block 412 is slid to a position where the pawl 442 is far away from the ratchet wheel 441, and at the moment, the ratchet wheel 441 can rotate along the direction of the traction length of the extended safety rope 2 to the waistcoat 3 of the human body, so that the normal state that the safety rope 2 is completely extended is recovered, and the safety belt is used normally again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the 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 telescopic safety belt for high altitude construction, includes couple (1), safety rope (2) and is used for wearing in human vest (3), its characterized in that: still include controlling means (4), controlling means (4) are including mount pad (41) and serving (42), serving (42) rotates and connects in mount pad (41), safety rope (2) one end fixed connection is in human vest (3), couple (1) and fixed connection in serving (42) are passed to safety rope (2) other end, mount pad (41) fixed connection is in the one end of human vest (3) or human vest (3) in safety rope (2).

2. The retractable safety harness for working high above ground as claimed in claim 1, wherein: the control device (4) further comprises a control assembly (43) arranged on the mounting base (41), the control assembly (43) comprises a first gear (431), a second gear (432) meshed with the first gear (431), a third gear (433) and a fourth gear (434) meshed with the third gear (433), the diameter of the first gear (431) is smaller than that of the second gear (432), the diameter of the third gear (433) is smaller than that of the fourth gear (434), the first gear (431) and the second gear (432) are both rotatably connected to the mounting base (41), the second gear (432) is coaxially and fixedly connected to the third gear (433), the fourth gear (434) is fixedly connected to the rope winding piece (42), and the fourth gear (434) is overlapped with the rotation axis of the rope winding piece (42).

3. The retractable safety harness for working high above ground as claimed in claim 2, wherein: the control device (4) further comprises a locking assembly (44) arranged on the mounting seat (41), the locking assembly (44) comprises a ratchet wheel (441) and a plurality of pawls (442) meshed with the ratchet wheel (441), the ratchet wheel (441) is fixedly connected to the rope rolling piece (42), the rotation axes of the ratchet wheel (441) and the rope rolling piece (42) are overlapped, the pawls (442) are rotatably connected to the mounting seat (41), and the mounting seat (41) is provided with an elastic piece (411) used for enabling the pawls (442) to be kept in a meshed state with the ratchet wheel (441).

4. The retractable safety harness for working high above ground of claim 3, wherein: the mounting seat (41) is penetrated and connected with a control block (412) which is used for controlling the pawl (442) to be far away from the ratchet wheel (441) in a sliding mode.

5. The retractable safety harness for working high above ground of claim 3, wherein: the mounting seat (41) is fixedly connected with a limiting block (413), and the limiting block (413) is located on one side, away from the central axis of the ratchet wheel (441), of the pawl (442).

6. The retractable safety harness for working high above ground of claim 3, wherein: the rope rolling piece (42) is fixedly connected with two baffles (414) used for limiting the safety rope (2), the baffles (414) are perpendicular to the rotating axis of the rope rolling piece (42), and the gear four (434) and the ratchet wheel (441) are positioned on one sides of the two baffles (414) which are deviated from each other.

7. The retractable safety harness for working high above ground as claimed in claim 2, wherein: the first gear (431) is coaxially and fixedly connected with a pin shaft (435), the pin shaft (435) penetrates through and is rotatably connected to the mounting seat (41), the pin shaft (435) is fixedly connected with a rocker (436), and the rocker (436) is located outside the mounting seat (41).

8. The retractable safety harness for working high above ground as claimed in claim 1, wherein: couple (1) rotates and is connected with at least one pulley (11), safety rope (2) set up in pulley (11).