Electric lifting pulley descender

Abstract

The utility model belongs to the technical field of electric lifting pulleys, and particularly relates to an electric lifting pulley descender which comprises a base, a transmission mechanism, an early warning mechanism and an emergency braking mechanism, the transmission mechanism comprises the base, a rope wheel is movably installed in the base, the rope wheel is fixedly installed on a first driven shaft, and the early warning mechanism is fixedly installed on the first driven shaft. A first driven gear is fixedly installed at the other end of the first driven shaft, a third driven gear is arranged below the first driven gear, a second driven gear is fixedly installed on the left side of the third driven gear, a driving gear is arranged above the second driven gear, the driving gear is fixedly installed on the driving shaft, and a driving block is movably installed on the driving gear through a limiting block. Through the design of the early warning mechanism, when the electric hand drill is not completely inserted into the device, the device cannot be started, the safety is improved, meanwhile, through the design of the emergency braking mechanism, the problem that the device is out of action due to sudden failure of a pawl in the working process is avoided, and the safety of operators is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric lifting pulley technical field, concretely is a kind of electric lifting pulley descender. BACKGROUND

[0002] Electric lifting slow descender is a kind of rescue device applied to the emergency slow evacuation of personnel from high-rise building to safe position when high-rise building accident occurs.It can not only be used to effectively slow down the speed of personnel descending, but also can realize the function of pulling personnel upwards, and the application scene of this slow descender with pulling function is less limited.

[0003] According to the electric lifting slow descender with worm structure (authorization publication number: CN221396806U) described in patent network, "the utility model relates to rope hoisting technical field, concretely relates to a kind of electric lifting slow descender with worm structure, including base, the base front side is hinged with panel by shaft one, base rear side is hinged with gear box by shaft two, gear box includes shell, input worm is arranged in shell, input worm extends out shell left side wall and / or right side wall and is provided with electric drill connection port, input worm is driven connection one worm gear, the center of worm gear is fixedly connected with output shaft, the output shaft extends to shell front side wall and is connected with rope pulley;The utility model utilizes the characteristics that worm can only drive worm gear and worm gear cannot drive worm, can effectively prevent the sudden drop accident caused by misoperation;It can ascend and descend;The wear of worm and worm gear can be measured and identified by the angle size of worm idle running, and product is convenient for judging waste;Input interface is in side, and it is convenient for user to use in narrow space;At the same time, since transmission assembly is reduced, transmission structure is simpler, the volume of product can be greatly reduced, weight is further reduced, and portability is further improved."

[0004] For the above related technology, the inventor believes that there is the phenomenon that the flashlight drill is not completely inserted tightly when being inserted into input worm before work, and the flashlight drill suddenly falls off in operation process, so there is certain safety hazard, and when the device works, if the pawl has problem, the elevator will lose effect, so that person rapidly descends, and there is safety problem, therefore, an electric lifting pulley descender is urgently needed to solve the problem. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of electric lifting pulley descender to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of electric lifting pulley descender, including base, the movable mounting of stop block is carried out in the base, the bottom of the base is equipped with the hanging buckle mounting hole, the upper left corner of the base is fixedly installed with fixed rod, the movable mounting of protective cover is carried out on the fixed rod, the limiting hole is equipped on the protective cover, the side of the base is equipped with three groups of blowholes;The electric lifting pulley descender includes transmission mechanism, early warning mechanism and emergency brake mechanism, the transmission mechanism includes base, the movable mounting of rope pulley is carried out in the base, the rope pulley is fixedly installed on driven shaft one, the other end of the driven shaft one is fixedly installed with driven gear one, the lower side of driven gear one is equipped with driven gear three, the left side of driven gear three is fixedly installed with driven gear two, the upper side of driven gear two is equipped with driving gear, the driving gear is fixedly installed on driving shaft, the movable mounting of driving block is carried out in driving gear by limiting block, the blowhole is convenient for heat dissipation and removes dirty sand grain.

[0007] Preferably, the diameter of the driven gear one is greater than the diameter of the driven gear three, the diameter of the driven gear three is less than the diameter of the driven gear two, the diameter of the driven gear two is greater than the diameter of the driving gear, the driven gear one is engaged with the driven gear three, the driven gear three and the driven gear two are integrally formed, and the driving gear is engaged with the driven gear two.

[0008] Preferably, the back of the base is movably installed with a mounting plate, the mounting plate is fixedly installed with an outer shell by bolts, the top of the mounting plate is movably installed with a handle, the outer shell is provided with a transmission mechanism, the lower left corner of the outer shell is provided with a driving block, and a nylon handle sleeve is installed on the handle to prevent wear and tear, making the user more comfortable during daily use, and providing better grip and comfort, especially when used for a long time, which can reduce hand fatigue.

[0009] Preferably, the driving block is in the shape of an internal hexagon, which is used for later cooperation with a hand drill.

[0010] Preferably, the early warning mechanism includes a driving block, the inner side of the driving block is provided with a limiting block, the driving block is movably installed with a movable block, the inside of the driving shaft is provided with a mounting groove, the front end of the driving shaft is provided with a limiting groove one, the limiting block is used in cooperation with the limiting groove one, so that the driving block can rotate without driving rotation, the spring one is provided inside, the two ends of the spring one are fixedly installed between the driving shaft and the movable block, the inwardly close part of the limiting groove one is provided with a cross limiting groove, and the shape of the movable block is consistent with the cross limiting groove.

[0011] Preferably, the emergency brake mechanism includes driven gear one, the front of driven gear one is provided with fixed shaft one and fixed shaft two, the rotating block is movably installed on fixed shaft one, the top rod is fixedly installed on the rotating block, the movable rod is movably installed on the top rod, and spring two is fixedly installed between the movable rod and the rotating block.

[0012] Preferably, the end of the movable rod is movably installed with a push rod through the rotating rod, the middle position of the push rod is movably installed on the fixed shaft two, the driven gear one is provided with a through hole, the limit pin is movably installed in the through hole, spring three is movably installed on the limit pin, the limit pin is in a compressed state, the limit groove two is arranged on the mounting plate below the driven gear one, the limit pin can clamp the driven gear one and the mounting plate when falling, the fixed rod is arranged on the mounting plate, the pawl is movably installed on the fixed installation, and the pawl is clamped on the teeth of the driven gear one through the spring.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The electric lifting pulley descending device is designed, and only when the output shaft of the electric drill completely pushes the movable block into the driving shaft, the driving block is connected with the driving shaft to form an integral whole, and the electric drill can drive the driving shaft to rotate, so that the electric drill is not completely inserted tightly, the electric drill is prevented from suddenly falling off in the working process, and the safety of the operator is harmed.

[0015] 2. The electric lifting pulley descending device is designed, and the emergency brake mechanism is designed, so that the pawl is suddenly damaged or the pawl fixing shaft is suddenly broken in the working process of the device, the worker suddenly falls, the limit pin is designed, the driven gear one is connected with the mounting plate to form an integral whole, the rope wheel is stopped, the emergency brake function is achieved, and the safety of the operator is protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is one of the three-dimensional schematic views of the utility model;

[0017] Figure 2 It is the second three-dimensional schematic view of the utility model;

[0018] Figure 3 It is a transmission mechanism structure schematic view of the utility model;

[0019] Figure 4 It is a non-insertion-tightening mechanism structure schematic view of the utility model;

[0020] Figure 5 It is a brake mechanism structure schematic view of the utility model.

[0021] In the figure: 1 base, 2 driven shaft one, 3 limit hole, 4 hanging buckle mounting hole, 5 stop block, 6 rope wheel, 7 fixed rod, 8 mounting plate, 9 protective cover, 10 handle, 11 shell, 12 drive block, 13 blowdown hole, 201 wear-resistant inner ring, 202 driven gear one, 203 driving shaft, 204 driving gear, 205 driven gear two, 206 driven gear three, 301 movable block, 302 limit groove one, 303 mounting groove, 304 spring one, 305 cross limit groove, 306 limit block, 401 pawl, 402 fixed shaft one, 403 rotating block, 404 spring two, 405 top rod, 406 movable rod, 407 fixed shaft two, 408 push rod, 409 limit pin, 410 spring three, 411 through hole, 412 limit groove two. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. EMBODIMENT

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of electric lifting pulley descender, including base 1, stop block 5 is movably installed in base 1, the bottom of base 1 is equipped with hanging buckle mounting hole 4, fixed rod 7 is fixedly installed in the upper left corner of base 1, protective cover 9 is movably installed on fixed rod 7, limit hole 3 is equipped on protective cover 9, the side of base 1 is equipped with three groups of blowdown hole 13;Electric lifting pulley descender includes transmission mechanism, early warning mechanism and emergency brake mechanism, transmission mechanism includes base 1, rope wheel 6 is movably installed in base 1, rope wheel 6 is fixedly installed on driven shaft one 2, the other end of driven shaft one 2 is fixedly installed with driven gear one 202, driven gear three 206 is equipped below driven gear one 202, driven gear two 205 is fixedly installed on the left side of driven gear three 206, driving gear 204 is equipped above driven gear two 205, driving gear 204 is fixedly installed on driving shaft 203, driving block 12 is movably installed with driving gear 204 by limit block.

[0024] The diameter of driven gear one 202 is greater than the diameter of driven gear three 206, the diameter of driven gear three 206 is less than the diameter of driven gear two 205, the diameter of driven gear two 205 is greater than the diameter of driving gear 204, driven gear one 202 is engaged with driven gear three 206, driven gear three 206 and driven gear two 205 are integrally formed.

[0025] The back of the base 1 is movably mounted with a mounting plate 8, the mounting plate 8 is fixedly mounted with a shell 11 through bolts, the top of the mounting plate 8 is movably mounted with a handle 10, the handle 10 is mounted with a nylon handle sleeve, which prevents wear and tear, makes the user more comfortable during daily use, and can provide better grip and comfort, especially when used for a long time, which can reduce hand fatigue. The shell 11 is provided with a transmission mechanism, and the lower left corner of the shell 11 is provided with a driving block 12.

[0026] The driving block 12 is in the shape of an internal hexagon, which is used for later cooperation with a hand drill.

[0027] The warning mechanism includes a driving block 12, the inner side of the driving block 12 is provided with a limiting block 306, the driving block 12 is movably mounted with a movable block 301, the inside of the driving shaft 203 is provided with a mounting groove 303, the front end of the driving shaft 203 is provided with a limiting groove one 302, the limiting block 306 is used in cooperation with the limiting groove one 302, so that the driving block 12 can rotate without driving the 203 to rotate, the 303 is provided with a spring one 304, the two ends of the spring one 304 are fixedly installed between the driving shaft 203 and the movable block 301, the part of the limiting groove one 302 that is close to the inside is provided with a cross limiting groove 305, the shape of the movable block 301 is consistent with the cross limiting groove 305.

[0028] Open the protective cover 9, press the nylon rope into the device, lock the nylon rope through the cooperation of the rope wheel 6 and the stop block 5, close the protective cover 9, insert the hand drill into the driving block 12, connect the driving block 12 and the driving shaft 203 into a whole through the movable block 301, start the hand drill, drive the driving gear 204 to rotate, drive the rope wheel 6 to rotate through the transmission mechanism, and then drive the nylon rope wound on the wear-resistant inner ring 201 to move. Embodiment

[0029] Please refer to Figure 5 The utility model provides a technical scheme: an electric lifting pulley descending device, the emergency brake mechanism includes a driven gear one 202, the front surface of the driven gear one 202 is provided with fixed shaft one 402 and fixed shaft two 407, the fixed shaft one 402 is movably mounted with rotating block 403, the rotating block 403 is fixedly installed with top rod 405, the top rod 405 is movably mounted with movable rod 406, and the movable rod 406 and the rotating block 403 are fixedly installed with spring two 404.

[0030] The end of the movable rod 406 is movably mounted with a push rod 408, the middle of the push rod 408 is movably mounted on the fixed shaft two 407, the driven gear one 202 is provided with a through hole 411, the through hole 411 is movably mounted with a limiting pin 409, the limiting pin 409 is movably mounted with a spring three 410, the 410 is in compression state, the driven gear one 202 is movably mounted with a limiting slot two 412, the limiting pin 409 will be stuck with the driven gear one 202 and the mounting plate 8 when falling, the mounting plate 8 is provided with a fixed rod, the fixed rod is movably mounted with a pawl 401, the pawl 401 is stuck with the teeth of the driven gear one 202 through a spring.

[0031] During the working process, when the pawl 401 suddenly breaks, the rope wheel 6 will rotate quickly and drive the driven gear one 202 to rotate, the movable rod 406 movably mounted on the surface of the driven gear one 202 will move to the direction of the rotating block 403 under the action of the great centrifugal force, and then drive the push rod 408 to rotate, and the limiting pin 409 stuck on the driven gear one 202 will be pushed, under the action of the spring three 410, the limiting pin 409 moves downward, and the driven gear one 202 is stuck on the mounting plate 8, so that the rope wheel 6 stops rotating, and the nylon rope is locked by the wear-resistant inner ring 201 and the stop block 5.

[0032] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a..." does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

Claims

1. An electric lift pulley descender comprising a base (1) characterised in that: The base (1) is movably mounted with a stopper (5), the bottom of the base (1) is provided with a hanging buckle mounting hole (4), the upper left corner of the base (1) is fixedly mounted with a fixed rod (7), the fixed rod (7) is movably mounted with a protective cover (9), the protective cover (9) is provided with a limiting hole (3), and the side edge of the base (1) is provided with three groups of blowdown holes (13). The electric lifting pulley descender comprises a transmission mechanism, a pre-warning mechanism and an emergency brake mechanism, the transmission mechanism comprises a base (1), the base (1) is movably mounted with a rope wheel (6), the rope wheel (6) is fixedly mounted on a driven shaft (2), the other end of the driven shaft (2) is fixedly mounted with a driven gear (202), the lower side of the driven gear (202) is provided with a driven gear (206), the left side of the driven gear (206) is fixedly mounted with a driven gear (205), the upper side of the driven gear (205) is provided with a driving gear (204), the driving gear (204) is fixedly mounted on a driving shaft (203), and the driving gear (204) is movably mounted with a driving block (12) through a limiting block.

2. An electric hoist pulley descender according to claim 1, wherein: The diameter of the driven gear (202) is greater than that of the driven gear (206), the diameter of the driven gear (206) is less than that of the driven gear (205), the diameter of the driven gear (205) is greater than that of the driving gear (204), the driven gear (202) is engaged with the driven gear (206), the driven gear (206) and the driven gear (205) are integrally formed, and the driving gear (204) is engaged with the driven gear (205).

3. An electric hoist and pulley descender according to claim 2, wherein: The back of the base (1) is movably mounted with a mounting plate (8), the mounting plate (8) is fixedly mounted with an outer shell (11) through bolts, the top of the mounting plate (8) is movably mounted with a handle (10), the handle (10) is sleeved with a nylon handle sleeve, the outer shell (11) is provided with a transmission mechanism, and the lower left corner of the outer shell (11) is provided with a driving block (12).

4. An electric hoist and pulley descender according to claim 3, wherein: The driving block (12) is in the shape of an internal hexagon, and is used for cooperation with a hand drill in the later period.

5. An electric hoist and pulley descender according to claim 4, wherein: The pre-warning mechanism comprises a driving block (12), the inner side of the driving block (12) is provided with a limiting block (306), the driving block (12) is movably mounted with a movable block (301), the inside of the driving shaft (203) is provided with a mounting groove (303), the front end of the driving shaft (203) is provided with a limiting groove (302), the limiting block (306) is used in cooperation with the limiting groove (302), so that the driving block (12) can rotate without driving the 203 to rotate, the 303 is provided with a spring (304), the two ends of the spring (304) are fixedly mounted between the driving shaft (203) and the movable block (301), the inwardly close part of the limiting groove (302) is provided with a cross limiting groove (305), and the shape of the movable block (301) is consistent with that of the cross limiting groove (305).

6. An electric hoist pulley descender according to claim 5, wherein: The emergency brake mechanism includes driven gear one (202), the front of driven gear one (202) is equipped with fixed shaft one (402) and fixed shaft two (407), the movable mounting of rotating block (403) is achieved on fixed shaft one (402), the fixed mounting of top rod (405) is achieved on rotating block (403), the movable mounting of movable rod (406) is achieved on top rod (405), spring two (404) is fixedly installed between movable rod (406) and rotating block (403).

7. An electric hoist and pulley descender according to claim 6, wherein: The end of movable rod (406) is movably installed with a lever (408) through a rotating rod, the middle position of lever (408) is movably installed on fixed shaft two (407), the through hole (411) is arranged on driven gear one (202), the movable mounting of limit pin (409) is achieved in through hole (411), spring three (410) is movably installed on limit pin (409), spring three (410) is in compression state, the limit groove two (412) is arranged on the mounting plate (8) below driven gear one (202), limit pin (409) will be stuck driven gear one (202) and mounting plate (8) when falling, the fixed rod is arranged on mounting plate (8), the movable mounting of ratchet pawl (401) is achieved on fixed rod, ratchet pawl (401) is clamped from the teeth of driven gear one (202) through spring.

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