CN220142463U - Automatic open protection slowly falls device that falls - Google Patents
Automatic open protection slowly falls device that falls Download PDFInfo
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- CN220142463U CN220142463U CN202320624544.XU CN202320624544U CN220142463U CN 220142463 U CN220142463 U CN 220142463U CN 202320624544 U CN202320624544 U CN 202320624544U CN 220142463 U CN220142463 U CN 220142463U
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Abstract
The utility model discloses an automatic opening falling protection descent control device, which comprises a descent control device and a rope pulley group, wherein the upper end of a rope is fixed on a building, the middle part of the rope is wound on the rope pulley group, a descent control starting device is arranged between the rope pulley group and the descent control device, the descent control starting device comprises a starting disc of an inner ring and a starting gear matched with the circumference of the starting disc, the starting disc and the rope pulley group are coaxially arranged and synchronously rotate, the inner ring of the starting gear is provided with a clamping groove, a clamping block is arranged in the starting disc, and under the action of the generated centrifugal force, the clamping block breaks through a certain control force to enter the clamping groove of the starting gear to synchronously rotate, and the starting gear is connected with the descent control device through a first transmission gear group. The utility model can automatically and lightly move up and down in the high-altitude operation, and can automatically start the descent control device to control the descent speed in the high-altitude operation, so that the high-altitude operation personnel can quickly break away from dangerous situations and safely descend to the ground when the danger occurs.
Description
Technical Field
The utility model relates to the field of safety protection of high-altitude operation, in particular to a falling protection descent control device which is used for high-altitude operation such as construction of a hanging basket and an outer wall of a spider man, installation and maintenance of electric power, wind power and telecommunication equipment.
Background
The hanging basket and spider man seat plate system is a building machine for high-altitude operation of building engineering, and is widely applied to the fields of curtain wall installation, outer wall cleaning, building body brightening installation and the like. The hanging basket is novel high-altitude operation equipment which can replace the traditional scaffold for high-rise buildings, can lighten labor intensity, improve working efficiency and can be reused. The use of the construction hanging basket is widely popularized in China and is widely accepted in construction of high-rise outer walls and the like.
The operation of the spider man seat plate system is to hang the spider man seat plate system outside a building with several layers, more than ten layers and even tens layers of heights by using a safety rope and an operation main rope, slowly slide down from the roof, and then perform the construction operation of the outer wall;
the hanging basket and the spider man seat plate system have extremely high requirements on cutting resistance, wear resistance, oxidation resistance, corrosion resistance and the like of the main rope and the safety rope. The rope is in the weather of blowing rain and sun and has the hidden danger of easily breaking and falling. The safety rope used by the basket and spider man seat system commonly used in the domestic market at present generates a plurality of unnecessary production accidents due to the storage, maintenance, use cost and market lease mode.
The safety rope used by the traditional basket is mostly linked on the body of a constructor by using the anti-falling device, when the basket moves up and down, the worker must synchronously and manually control the anti-falling device to move while operating the basket, so that the worker is difficult to operate simultaneously, two persons must operate simultaneously, and especially when an air conditioner plate and other building bodies are in modeling, the lifting and descending safety hidden trouble of the worker operating the basket is particularly prominent because the stretching distance of the roof support of the basket is limited.
In addition, the constructors are timid and worry that when the hanging basket fails or fails, the hanging basket cannot lift, so that the constructors are trapped. Only passively waiting for e.g. firefighter rescue. If the construction encounters strong wind, the basket swings and is in a stagnation state, and if rescue is not carried out, constructors can be thrown out of the basket, and the basket hangs to strike a wall body and is impacted by the swinging basket.
The utility model is a safe, convenient and efficient falling protection device. The problems that constructors encounter danger and cannot escape in time in the related fields and potential safety hazards occur in the practical application of the safety rope are effectively solved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a mechanical device which can automatically start a falling protection descent control device, can automatically and lightly move up and down at a low speed in high-altitude operation, and can automatically start the descent control device to control the descending speed at a high speed so that high-altitude operation personnel can quickly break away from dangerous situations and safely descent to the ground when the high-altitude operation personnel are in danger.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an automatic open protection slowly falls device that falls, includes slowly falls ware and rope pulley group, and rope upper end is fixed on the building, middle part winding is on the rope pulley group, be provided with slowly to fall starting drive between the rope pulley group and slowly falls the ware, slowly fall starting drive including the starter disc of inner circle and the starter gear of matching outside the starter disc circumference, starter disc and the coaxial setting of rope pulley group and synchronous rotation, starter gear inner circle are provided with the draw-in groove, are provided with the fixture block in the starter disc, and the fixture block breaks through the synchronous rotation of drive starting gear in the draw-in groove that certain control power got into starting gear under the centrifugal force effect that produces when the starter disc rotates, and starting gear passes through first drive gear group and connects slowly falls the ware.
The technical scheme of the utility model is further improved as follows: the two opposite groove walls and the groove bottom of the clamping groove form a sharp angle smaller than 90 degrees, the other groove wall and the groove bottom form a round angle larger than 90 degrees, the two opposite side surfaces and the top of the clamping block form a tip angle smaller than 90 degrees, the other groove wall and the groove bottom form a blunt part larger than 90 degrees, the control force is provided by a compression spring connected between the clamping block and the starting disc, the starting disc rotates along one direction in the descending process of the descent control device, and after the clamping block breaks through the control force of the compression spring under the action of centrifugal force, the tip of the clamping block enters the sharp angle of the clamping groove to drive the starting gear to rotate, and the descent control function is started; the starting disc rotates along the opposite direction in the descending process of the descent control device, and after the clamping block breaks through the control force of the compression spring under the action of centrifugal force, the blunt part of the clamping block slides out after entering the clamping groove round corner, so that the descent control function is not started.
The technical scheme of the utility model is further improved as follows: the utility model discloses a starting gear, including starting gear, starting disk, drive shaft, connecting shaft, clamping groove and clamping groove, the equipartition has a plurality of draw-in grooves on the starting gear inner periphery, the transmission shaft of starting disk is polygon, and the starting disk includes two circular base discs of chuck and both sides in middle part, and base disc and chuck pass through the mode body coupling of round pin axle cross-under, starting disk center and transmission shaft cooperation, evenly set up two fan-shaped breach on the chuck, every breach department is connected an arcuation fixture block through connecting the pivot, fixture block one end sets up tip and blunt portion, set up compression spring between the other end and the chuck, and the connecting shaft is close to compression spring one side setting, and the starting disk rotational speed reaches and can provide the fixture block when overcoming compression spring centrifugal force, the tip of fixture block and the one end of blunt portion are thrown away to the draw-in groove.
The technical scheme of the utility model is further improved as follows: the rope pulley group comprises a driving rope pulley and a driven rope pulley which are arranged up and down in a staggered mode, the driving rope pulley is arranged above the driven rope pulley in an inclined mode, and ropes firstly bypass the driven rope pulley from top to bottom and then upwards bypass the driving rope pulley and then extend out from the lower end.
The technical scheme of the utility model is further improved as follows: the rope is provided with guide wheels at the entrance and the exit of the descent control device and the positions of the rope wound into the driven rope sheave and the driving rope sheave.
The technical scheme of the utility model is further improved as follows: the driving rope wheel and the driven rope wheel synchronously rotate at the same speed and opposite steering directions, and the driving rope wheel is in transmission connection with the driven rope wheel through a second transmission gear set.
The technical scheme of the utility model is further improved as follows: an automatic open protection slowly falls device setting and holds the protecgulum that the cavity front end set up in the cavity that holds of cuboid structure, and protecgulum one side articulates in holding the cavity side, and the protecgulum opposite side sets up the fixed part that stretches into the inside of holding the cavity, sets up the recess about the fixed part middle part and forms H type structure, holds the cavity side and articulates there is the lock plunger of card income, be provided with C type draw-in groove on the lock plunger, the H type recess cooperation locking of C type draw-in groove and fixed part, the lock plunger lower extreme passes through catch and slowly falls the ware locking.
The technical scheme of the utility model is further improved as follows: the lock bolt is provided with a vertical long groove.
The technical scheme of the utility model is further improved as follows: the inside of the accommodating cavity is divided into a rope pulley cavity, a second transmission gear cavity and a descent control cavity by a baffle plate and a connecting column from front to back, the driving rope pulley and the driven rope pulley are arranged in the rope pulley cavity, the second transmission gear set is arranged in the second transmission gear cavity, and the descent control starting device and the descent control device are arranged in the descent control cavity.
The technical scheme of the utility model is further improved as follows: the lower end of the rope is provided with a clamping plate, the clamping plate comprises two hinged plate pages, the distance between the two plate pages is adjusted by the two plate pages through an adjusting bolt, the rope is clamped between the two plate pages, and the clamping plate is connected with a weight hung on the ground through a clamping plate hole.
The technical scheme of the utility model is further improved as follows: the descent control device is any one of escapement type descent control device and centrifugal friction descent control device.
The technical scheme of the utility model is further improved as follows: the descent control device comprises a central gear shaft connected with the first transmission gear set, a descent control wheel capable of rotating synchronously and a limiting body arranged on the periphery of the descent control wheel are arranged on the central gear shaft, movable blocks connected through pins and provided with inner holes larger than the diameter of the pins are uniformly distributed on the periphery of the descent control wheel, the movable blocks move outwards under the action of centrifugal force when the descent control wheel rotates and collide with the limiting body, and the movable blocks are pushed to move inwards under the reaction of the limiting body.
The technical scheme of the utility model is further improved as follows: the slow descending wheels are arranged in two, the two slow descending wheels which are oppositely arranged are fixedly connected through a pin, and the movable block is arranged between the two slow descending wheels.
The technical scheme of the utility model is further improved as follows: the cross section of the periphery of the movable block is any one of a circle, an ellipse, a water drop shape and a polygon, and the cross section of the inner hole of the movable block is any one of a circle, an ellipse, an oblong, a square and a rectangle.
The technical scheme of the utility model is further improved as follows: the limiting body is a cylindrical or arc-shaped or polygonal limiting column.
The technical scheme of the utility model is further improved as follows: and a sleeve or a tubular spring is sleeved outside the limit column.
By adopting the technical scheme, the utility model has the following technical progress:
the automatic-opening falling protection descent control device can automatically and lightly move up and down in high-altitude operation at low speed, and can automatically start the descent control device to control the descending speed at high speed, so that high-altitude operation personnel can quickly break away from dangerous situations and safely descent to the ground when the danger occurs.
The slow-descent starting device mainly limits the specific structures of the clamping groove and the clamping block, a sharp corner and a round corner are arranged in the clamping groove, a sharp part and a blunt part of the clamping block enter the clamping groove under the action of centrifugal force, and when the descending speed reaches to overcome the elasticity of the compression spring, the sharp part of the clamping block contacts with the sharp corner of the clamping groove, so that the starting disc drives the starting gear to rotate; when ascending, the blunt part of the clamping block contacts with the round corner of the clamping groove, the starting disc idles, the unidirectional driving effect is achieved, and when the slow descending device is used, the slow descending device mainly acts in the descending stage, and when ascending, the starting disc idles, and the slow descending device does not act.
The whole device that slowly falls sets up in the holding cavity of a cuboid structure, holds the front shroud that the cavity front end set up, and the front shroud passes through the lock plunger and holds cavity fixed connection, avoids appearing the disintegration in the course of the work, influences the realization that slowly falls the function. The lock bolt is provided with a vertical long groove, the whole slow descending device is connected with the hanging basket through the long groove, and the long groove is arranged to enable the slow descending device to be in a stable state no matter the slow descending device ascends or descends along with the hanging basket, so that deflection or overturning is avoided; during normal operation, the lifting of the descent control device is irrelevant to a human body, so that the descent control device has the advantages that special operation is not needed, the construction process is more convenient and quick, the human body is not stretched up and down any more, and the uncomfortable feeling of operators is eliminated.
The clamping plates fix the heavy objects on the ropes of the main body of the descent control device, and after the heavy objects are landed, the heavy objects can play a role in stabilizing the descent control device in severe weather environments such as strong wind and the like, and the danger that the ropes of the hanging basket swing impact descent control device are broken is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below;
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic illustration of the present utility model with the receiving chamber removed;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic diagram of a combination of a sheave assembly, a slow-descent initiator, and a slow-descent damper;
FIG. 5 is a schematic combination of a descent control device coupled to a descent control device through a first drive gear set connection;
FIG. 6 is an exploded schematic view of a slow descent starting device;
FIG. 7 is a schematic diagram of a boot disk and boot gear set configuration;
FIG. 8 is a schematic diagram of a ramp down regulator assembly;
fig. 9 is a combined schematic of a drive sheave connected to a driven sheave through a second drive gear set connection;
FIG. 10 is a schematic view of the assembly of the receiving cavity, front cover plate, latch and locking ring;
wherein, 1, ropes, 2, a starting disc, 2-1, a chuck, 2-2, a base disc, 3, a starting gear, 4, a clamping groove, 5, a clamping block, 6, a connecting rotating shaft, 7, a compression spring, 8, a transmission shaft, 9, a driving rope pulley, 10, a driven rope pulley, 11 and a guide wheel, 12, a containing cavity, 13, a front cover plate, 14, a fixing part, 15, a lock bolt, 16, a lock ring, 17, an elongated slot, 18, a central gear shaft, 19, a descent control wheel, 20, a limiting body, 21, a pin, 22, a movable block, 23, a clamping plate, 24 and an adjusting bolt.
Detailed Description
The utility model is further described in detail below with reference to examples and figures 1 to 10:
example 1
The utility model provides an automatic open protection slowly falls device that falls, includes slowly falls ware, rope sheave group and slowly falls starting drive, slowly falls starting drive and sets up between rope sheave group and slowly falls the ware. The upper end of the rope 1 is fixed on a building, the middle part of the rope is wound on a rope pulley group, the slow descent starting device and the rope pulley group are coaxially arranged and synchronously rotate, and the slow descent starting device is connected with a slow descent device through a first transmission gear group. The whole and construction hanging flower basket fixed connection of slowly lowering means, when descending, the rope drives rope sheave group and rotates, and rope sheave group will rotate the transmission and to slowly fall starting drive, and when the decline speed was lower, slowly fall the function can not start, only when the decline speed reached certain degree, start slowly and fall the function, slowly fall starting drive will rotate and transmit to slowly fall the ware, slowly fall the ware work, realize slowly falling the protection, avoided slowly falling the ware and be in operating mode always. The utility model can automatically and conveniently move up and down in high-altitude operation, and simultaneously can quickly utilize the descent control device to break away from dangerous situations and safely descent to the ground when the danger occurs.
The rope pulley group comprises a driving rope pulley 9 and a driven rope pulley 10 which are arranged up and down in a staggered mode, the driving rope pulley 9 is arranged above the driven rope pulley 10 in an inclined mode, and the rope 1 firstly bypasses the driven rope pulley 10 from top to bottom and then upwards bypasses the driving rope pulley 9 and then stretches out towards the lower end.
The driving rope wheel 9 and the slow-descent starting device are coaxially arranged and synchronously rotate. The slow-descent starting device comprises a starting disc 2 of an inner ring, a starting gear 3 matched outside the circumference of the starting disc 2 and a polygonal transmission shaft 8 in the center of the starting disc 2, and of course, even if the transmission shaft 8 is not polygonal, other modes (such as a circular shaft and a key mode) are adopted to realize torque transmission in cooperation with the starting disc 2.
The inner ring of the starting gear 3 is uniformly provided with a plurality of clamping grooves 4, one included angle between two opposite groove walls of the clamping grooves 4 and the groove bottom is a sharp angle smaller than 90 degrees, and the other included angle is a round angle larger than 90 degrees. Two fan-shaped notches are uniformly formed in the starting disc 2, each notch is connected with an arc-shaped clamping block 5 through a connecting rotating shaft 6, one end of each clamping block 5 is provided with a tip part and a blunt part, a compression spring 7 is arranged between the other end of each clamping block and the fan-shaped notch of the starting disc 2, the connecting rotating shaft 6 is arranged close to one side of the compression spring 7, and the clamping blocks 5 and the connecting rotating shaft 6 integrally form a teeterboard structure. The included angle between the side surface and the top of the clamping block 5 is smaller than 90 degrees and is called a tip part, and the included angle between the other side surface and the top is larger than 90 degrees and is called a blunt part. When the starting disc 2 rotates at a low speed, the clamping block 5 cannot enter the clamping groove 4, and as the speed of the starting disc 2 is increased, the tip part of the clamping block 5 and one end of the blunt part are thrown out into the clamping groove 4 under the action of centrifugal force against the pressure of the compression spring 7. Wherein, slowly fall the device in-process, the tip of fixture block 5 gets into in the draw-in groove 4 closed angle when the start plate 2 rotates along a direction and drives start gear 3 rotation, slowly fall the device in-process, start plate 2 along another opposite direction rotation time the blunt portion of fixture block 5 get into the draw-in groove 4 rounded angle after smooth autogenous rotation. The structure achieves the effect of unidirectional driving, and when the slow descent is applied, the slow descent starting device mainly acts in the descending stage, and the starting disc 2 idles in the ascending stage, and the slow descent starting device does not act.
Preferably, the starting disc 2 comprises a chuck 2-1 in the middle and base discs 2-2 on two sides, wherein two fan-shaped notches are uniformly formed in the chuck 2-1, the two base discs 2-2 are circular, and are integrally connected with the chuck 2-1 on two sides of the chuck 2-1 in a pin shaft penetrating manner. The connecting rotating shaft 6 is connected to the two base plates 2-2 in a penetrating way, and the arc-shaped clamping block 5 is hinged to the sector-shaped notch.
The starting gear 3 of the slow-descent starting device is connected with a slow-descent device through a first transmission gear set, the slow-descent device is any one of an escapement type slow-descent device and a centrifugal friction type slow-descent device, and when the slow-descent starting device acts, the starting gear 3 of the slow-descent starting device drives the slow-descent device to work through the first transmission gear set, so that the slow-descent function is realized.
The rope pulley group, the slow-descent starting device and the slow-descent device are all fixed firmly through the laminate or other fixing parts, wherein after the rope 1 extends out of the lower end of the slow-descent device, the upper end and the lower end of the rope are provided with a clamping plate 23, the clamping plate 23 comprises two hinged plate pages, the two plate pages clamp the rope 1 between the two plate pages by adjusting the distance between the two plate pages through an adjusting bolt 24, and the clamping plate 23 is connected with a weight hung on the ground through a clamping plate hole. The clamping plates fix the heavy objects on the ropes of the main body of the descent control device, and after the heavy objects are landed, the heavy objects can play a role in stabilizing the descent control device in severe weather environments such as strong wind and the like, and the danger that the ropes of the hanging basket swing impact descent control device are broken is avoided.
Example 2
The biggest difference between this embodiment and embodiment 1 is that the driving sheave 9 is in driving connection with the driven sheave 10 via the second transmission gear set, and that the driving sheave 9 and the driven sheave 10 can be ensured to rotate synchronously at the same speed and in opposite directions. The rope 1 is provided with guide wheels 11 at the entrance and the exit of the whole descent control device and at the positions of the rope winding-in driven rope pulley 10 and the winding-out driving rope pulley 9, so that smoothness in up-and-down movement is ensured. For the fixed mounting of the individual guide wheels 11, a mounting plate can be provided around the gear set for mounting the guide wheels 11.
Example 3
The difference between this embodiment and embodiment 2 is that the automatic opening falling protection descent control device is disposed in the accommodating cavity 12 of the cuboid structure, the accommodating cavity 12 is divided into a rope wheel cavity, a second transmission gear cavity and a descent control cavity by a baffle plate and a connecting column from front to back, the driving rope wheel 9 and the driven rope wheel 10 are mounted in the rope wheel cavity, the second transmission gear set is mounted in the second transmission gear cavity, and the descent control starting device and the descent control device are mounted in the descent control cavity.
The front end of the accommodating cavity 12 is provided with a front cover plate 13, one side of the front cover plate 13 is hinged to the side face of the accommodating cavity 12 through a rotating shaft, the other side of the front cover plate 13 is provided with a fixing part 14, the front cover plate 13 of the fixing part 14 is arranged, the fixing part 14 vertically stretches into the accommodating cavity 12, grooves are formed in the upper edge and the lower edge of the middle of the fixing part 14 to form an H-shaped structure, the side face of the accommodating cavity 12 is hinged to a locking bolt 15 which is clamped in, the locking bolt 15 is provided with a C-shaped clamping groove, the side face of the accommodating cavity 12 is grooved at a corresponding position, the C-shaped clamping groove of the locking bolt 15 can enter the accommodating cavity 12 to be matched and locked with the H-shaped groove of the fixing part 14, and the lower end of the locking bolt 15 is locked with a lifting ring on the descent control device through a locking ring 16.
Preferably, a vertical long groove 17 is arranged on the lock plunger 15, the whole slow descending device is connected with the hanging basket through the long groove, and the long groove is arranged to enable the slow descending device to be in a stable state no matter rising or falling along with the hanging basket, so that deflection or overturning is avoided.
Example 4
The embodiment also provides a specific descent control device on the basis of comprising any one or more structures, the descent control device comprises a central gear shaft 18 connected with the first transmission gear set, the central gear shaft 18 is provided with synchronous rotation descent control wheels 19, two descent control wheels 19 are arranged, two descent control wheels 19 which are arranged oppositely are fixedly connected through a pin 21, and the periphery of the descent control wheels 19 is provided with a limiting body 20. The circumference of the descent control wheel 19 is uniformly provided with movable blocks 22 connected through pins 21, the movable blocks 22 are arranged between the two descent control wheels 19, the center of each movable block 22 is provided with an inner hole larger than the diameter of each pin 21, when the descent control wheel 19 rotates, the movable blocks 22 move outwards under the action of centrifugal force to collide with the limiting body 20, and the movable blocks 22 are pushed by the reaction of the limiting bodies 20 to move inwards.
The cross section of the periphery of the movable block 22 is any one of a circle, an ellipse and a polygon, and the cross section of the inner hole of the movable block 22 is a circle.
Preferably, the limiting body 20 is a cylindrical or arc-shaped or polygonal limiting column, and a sleeve or a tubular spring with higher hardness is sleeved outside the limiting column.
The above embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design concept of the present utility model.
Claims (16)
1. The utility model provides an automatic open protection slowly falls device that falls, includes slowly falls ware and rope wheelset, rope (1) upper end is fixed on the building, middle part winding on the rope wheelset, its characterized in that: be provided with slow down starting drive between rope sheave group and the buffer, slow down starting drive includes starter disc (2) and the matching of inner circle outside starter disc (2) circumference starter gear (3), starter disc (2) and the coaxial setting of rope sheave group and synchronous rotation, starter gear (3) inner circle is provided with draw-in groove (4), is provided with fixture block (5) in starter disc (2), and fixture block (5) break through certain control force under the centrifugal force effect that produces when starter disc (2) rotate and get into starter gear (3) draw-in groove (4) internal drive starter gear (3) synchronous rotation, starter gear (3) are connected through first drive gear train the buffer.
2. The automatic-opening fall protection descent control device according to claim 1, wherein: the two opposite groove walls and the groove bottom of the clamping groove (4) form a sharp angle smaller than 90 degrees, the other groove wall and the groove bottom form a round angle larger than 90 degrees, the two opposite side surfaces and the top of the clamping block (5) form a sharp angle smaller than 90 degrees, the other groove wall and the groove bottom form a blunt part larger than 90 degrees, the control force is provided by a compression spring (7) connected between the clamping block (5) and the starting disc (2), the starting disc (2) rotates along one direction in the descending process of the descent control device, and after the clamping block (5) breaks through the control force of the compression spring (7) under the action of centrifugal force, the sharp part of the clamping block (5) enters the sharp angle of the clamping groove (4) to drive the starting gear (3) to rotate, and the descent control function is started; the starting disc (2) rotates along the opposite direction in the descending process of the descent control device, and after the clamping block (5) breaks through the control force of the compression spring (7) under the action of centrifugal force, the blunt part of the clamping block (5) slides out after entering the round corner of the clamping groove (4), so that the descent control function is not started.
3. The automatic-opening fall protection descent control device according to claim 2, wherein: a plurality of clamping grooves (4) are uniformly distributed on the inner periphery of the starting gear (3), a transmission shaft (8) of the starting disc (2) is polygonal, the starting disc (2) comprises a chuck (2-1) in the middle and two circular base discs (2-2) on two sides, the base discs (2-2) and the chuck (2-1) are integrally connected in a pin shaft penetrating mode, the center of the starting disc (2) is matched with the transmission shaft (8), two sector notches are uniformly formed in the chuck (2-1), each notch is connected with an arc-shaped clamping block (5) through a connecting rotating shaft (6), a compression spring (7) is arranged between one end of each clamping block (5) and the other end of each clamping block, the other end of each clamping block is close to one side of the compression spring (7), and when the rotating speed of the starting disc (2) reaches the rotating speed which can provide for the clamping block (5) to overcome the centrifugal force of the compression spring (7), one ends of the tip and the blunt parts of the clamping blocks (5) are thrown out into the clamping grooves (4).
4. The automatic-opening fall protection descent control device according to claim 1, wherein: the rope pulley group comprises a driving rope pulley (9) and a driven rope pulley (10) which are arranged up and down in a staggered mode, the driving rope pulley (9) is arranged above the driven rope pulley (10) obliquely, and the rope (1) firstly bypasses the driven rope pulley (10) from top to bottom and then upwards bypasses the driving rope pulley (9) and then stretches out towards the lower end.
5. The automatic-opening fall protection descent control device according to claim 4, wherein: the rope (1) is provided with guide wheels (11) at the entrance and the exit of the descent control device, and the positions of the rope winding in the driven rope wheel (10) and the driving rope wheel (9).
6. The automatic-opening fall protection descent control device according to claim 4, wherein: the driving rope wheel (9) and the driven rope wheel (10) synchronously rotate at the same speed and opposite steering, and the driving rope wheel (9) is in transmission connection with the driven rope wheel (10) through a second transmission gear set.
7. The automatic-opening fall protection descent control device according to claim 6, wherein: the automatic open protection slowly falls device and sets up in cuboid structure hold cavity (12), holds preceding apron (13) that cavity (12) front end set up, and preceding apron (13) one side articulates in holding cavity (12) side, and preceding apron (13) opposite side sets up stretches into and holds inside fixed part (14) of cavity (12), and the upper and lower setting recess at fixed part (14) middle part forms H type structure, holds cavity (12) side and articulates there is lock bolt (15) of card income, be provided with C type draw-in groove on lock bolt (15), the H type recess cooperation locking of C type draw-in groove and fixed part (14), lock bolt (15) lower extreme through catch (16) and slowly fall the ware locking.
8. The automatic-opening fall protection descent control device according to claim 7, wherein: the lock bolt (15) is provided with a vertical long groove (17).
9. The automatic-opening fall protection descent control device according to claim 7, wherein: the inside rope sheave chamber, second drive gear chamber and the slow down chamber of dividing into through baffle and spliced pole from the front to back of holding cavity (12), initiative rope sheave (9) and driven rope sheave (10) are installed in the rope sheave intracavity, and second drive gear group installs in the second drive gear intracavity, and slow down starting drive and slow down ware are installed in slow down intracavity.
10. The automatic-opening fall protection descent control device according to claim 1, wherein: the lower end of the rope (1) is provided with a clamping plate (23), the clamping plate (23) comprises two hinged plate pages, the distance between the two plate pages is adjusted by the two plate pages through an adjusting bolt (24), the rope (1) is clamped between the two plate pages, and the clamping plate (23) is connected with a weight hung on the ground through a clamping plate hole.
11. The automatic-opening fall protection descent control device according to claim 1, wherein: the descent control device is any one of escapement type descent control device and centrifugal friction descent control device.
12. The automatic-opening fall protection descent control device according to claim 1, wherein: the descent control device comprises a central gear shaft (18) connected with a first transmission gear set, a descent control wheel (19) capable of synchronously rotating and a limiting body (20) arranged on the periphery of the descent control wheel (19) are arranged on the central gear shaft (18), movable blocks (22) which are connected through pins (21) and are provided with inner holes larger than the diameter of the pins (21) are uniformly distributed on the circumference of the descent control wheel (19), the movable blocks (22) move outwards under the action of centrifugal force when the descent control wheel (19) rotates and collide with the limiting body (20), and the movable blocks (22) are pushed to move inwards under the reaction of the limiting body (20).
13. The automatic opening fall protection slow descent device according to claim 12, wherein: the slow descending wheels (19) are arranged in two, the two slow descending wheels (19) which are oppositely arranged are fixedly connected through a pin (21), and the movable block (22) is arranged between the two slow descending wheels (19).
14. The automatic opening fall protection slow descent device according to claim 12, wherein: the cross section of the periphery of the movable block (22) is any one of a circle, an ellipse, a water drop shape and a polygon, and the cross section of the inner hole of the movable block (22) is any one of a circle, an ellipse, an oblong, a square and a rectangle.
15. The automatic opening fall protection slow descent device according to claim 12, wherein: the limiting body (20) is a cylindrical or arc-shaped or polygonal limiting column.
16. The automatic fall protection slow descent device according to claim 15, wherein: and a sleeve or a tubular spring is sleeved outside the limit column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624544.XU CN220142463U (en) | 2023-03-27 | 2023-03-27 | Automatic open protection slowly falls device that falls |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624544.XU CN220142463U (en) | 2023-03-27 | 2023-03-27 | Automatic open protection slowly falls device that falls |
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| CN220142463U true CN220142463U (en) | 2023-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116392733A (en) * | 2023-03-27 | 2023-07-07 | 石家庄君安消防设备科技有限公司 | Automatic open protection slowly falls device that falls |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116392733A (en) * | 2023-03-27 | 2023-07-07 | 石家庄君安消防设备科技有限公司 | Automatic open protection slowly falls device that falls |
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