CN217650804U - Novel brake device of lifting device - Google Patents

Abstract

The utility model relates to the field of lifter mechanisms, in particular to a novel brake device of a lifter, which is characterized in that a shell (1) comprises a cam insert inserting hole (45) and a sealing cover hole (43); the cover hole (43) is positioned below the cam insert insertion hole (45), and a rope passing space is formed between the cover hole (43) and the cam insert insertion hole (45), namely the height of the rope outlet hole (22) is positioned between the cover hole (43) and the cam insert insertion hole (45); the cam shaft (37) penetrates through the sealing cover (34), a cam is fixed on the cam shaft (37), and a cam head (39) comprises a plurality of protrusions which are formed into friction surfaces; a flat key (38) is arranged on the cam shaft (37), a groove matched with the flat key (38) is formed in the manual brake handle (6), and the manual brake handle (6) is installed on the cam shaft (37) through the flat key (38).

Description

Novel brake device of lifting device

Technical Field

The utility model relates to a riser mechanism field especially relates to a novel brake of elevating gear.

Background

A personal lift is a new utility lift for lifting objects with battery-powered cord, and portable cord lifts will be an essential tool in some of the most challenging high-altitude commercial markets. In outdoor sports, portable and economical rope elevators are widely used in today's most popular emerging sports.

The traditional elevator is large and heavy, is inconvenient to transport and carry, has limited lifting height, cannot be applied by site factors, and is not beneficial to high-altitude commercial activities and outdoor exercises.

The tensioner is a novel practical tensioner which utilizes a copper tensioning device to manufacture a spiral groove and a spring elastic force prepressing and laminating tensioning rope, and the tension force can be adjusted according to different loads and rope sizes. The tension is adjusted by adopting a rotating hand wheel to drive a lever mechanism to realize the forward and backward movement of the tensioner.

Conventional tensioners are bulky and heavy and tend to wear the cords when they are tensioned against a flexible object.

The stopper is a novel practical stopper that is used for pressing from both sides the rope and forms the wedge for the riser presss from both sides the rope, automatic locking, and the range size control falling speed is opened to the manual control handle.

The traditional brake is bulky and heavy, and has poor braking effect on soft objects.

The method searches in a public database of Chinese patent by taking 'lifter and tensioning and braking' as an abstract key word and discovers

CN 108821114A-clamp type anti-shaking and anti-falling device; this technique is completely irrelevant to this patent.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is that: in order to provide a novel braking device of a lifting device with better effect, the specific purpose is to see a plurality of substantial technical effects of the specific implementation part.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the first scheme is as follows:

a novel lifting device is characterized by comprising a shell 1, wherein a motor 3 is fixed on the shell 1, a motor power output shaft 13 of the motor 3 extends into a guide assembly hole 15 of a guide assembly 14, the motor power output shaft 13 is in power connection with a driving shaft 17, the end part of the driving shaft 17 comprises a driving wheel 33, and a rope 26 can be wound on the driving shaft 17; the side of the guide assembly 14 comprises a guide assembly rope outlet 23, and the shell 1 comprises a rope outlet hole 22 corresponding to the guide assembly rope outlet 23; a guide assembly rope inlet port 24 is arranged above the guide assembly 14, and a rope inlet hole 19 corresponding to the guide assembly rope inlet port 24 is formed in the shell 1; the motor 3 rotates to drive the rope to lift.

The utility model discloses a further technical scheme lies in, still contains rechargeable battery 10, and rechargeable battery 10 demountable installation is on casing 1.

The utility model discloses a further technical scheme lies in, and 1 one side of casing contains the enclosing cover that can close the casing, has arranged the handle on the enclosing cover, has arranged variable speed thumbwheel control system 11 on the handle.

The utility model discloses a further technical scheme lies in, and the top tie point 4 of two rope systems is arranged to casing 1's top.

The utility model discloses a further technical scheme lies in, and the fixed bottom tie point 9 of individual rope is arranged to the below of casing 1.

The utility model discloses a further technical scheme lies in, the casing on arranged a plurality of labels, a plurality of labels are battery label 2, brake label 5, tensioning knob label 7.

The present invention has a further technical solution in that the inside of the housing is divided into an upper space 27 and a lower space 29 by a partition wall 30.

The further technical solution of the present invention is that the guiding component 14 is located in the upper space 27; the guide assembly bore 15 includes a plurality of guide cord grooves 16 on the inner wall thereof.

The utility model has the further technical proposal that a rechargeable battery 10 is provided with a battery buckle 40, and a shell body buckle 41 is arranged on the shell body 1; both the battery catch 40 and the case catch 41 can be detachably engaged.

The utility model discloses a further technical scheme lies in, still contains overspeed device tensioner and arresting gear.

Scheme two is as follows:

a tensioning device of a novel lifting device is characterized in that the tensioning device comprises a tensioner adjusting knob 8, the tensioner adjusting knob 8 is fixedly connected with an adjusting shaft 42, the adjusting shaft 42 comprises an adjusting sheet 43, the adjusting shaft above the adjusting sheet 43 is clamped by a clamping part 44, the clamping part 44 is positioned at the end part of a lever arm 31, the middle part of the lever arm 31 is hinged with a lever fulcrum 32 through a hinge structure, the end part of the lever arm 31 is hinged with a telescopic shaft 28, and a lower space 29, a partition wall 30 and an upper space 27 penetrate through the upper part of the telescopic shaft 28; the telescopic shaft 28 passes through the tensioner spring 18, the tensioner spring 18 being able to be located on the partition wall 30; the tensioning head 25 is pressed against the upper part of the telescopic shaft 28; the tensioning head 25 is able to squeeze the drive shaft 17 and the cord wound around the drive shaft 17.

The utility model discloses a further technical scheme lies in, lever fulcrum 32 contains the triangular plate of casing below, still contains the pivot of passing the triangular plate, and lever arm 31 is passed in the pivot.

The further technical proposal of the utility model is that a plurality of bulges are arranged above the tensioning head 25, the bulges are friction bulges, and the bulges can extrude the driving shaft 17 and the rope wound on the driving shaft 17; circular gaps are formed among the bulges, and the bulges comprise circular edges to prevent the rope from being worn; the protrusions are arranged obliquely or spirally.

The utility model discloses a further technical scheme lies in, and the first half section of adjustment axle 42 contains the screw hole for the screw thread section on the casing, and screw thread section threaded installation advances in the screw hole.

The utility model discloses a further technical scheme lies in, and trimmer 43 is circular shape lamellar structure.

The utility model discloses a further technical scheme lies in, the below in direction subassembly hole 15 can be passed to tensioning head 25's top.

And a third scheme is as follows:

the novel brake device of the lifting device is characterized in that a shell 1 comprises a cam insert insertion hole 45 and a cover hole 43; the cover hole 43 is positioned below the cam insert insertion hole 45, and a space for passing a rope is formed between the cover hole 43 and the cam insert insertion hole 45, namely, the height of the rope outlet hole 22 is positioned between the cover hole 43 and the cam insert insertion hole 45;

the cam insert insertion hole 45 can be inserted with the cam insert 20, and cam lock component friction surfaces are arranged above and below the cam insert 20;

a cam closure system can be inserted into the closure hole 43, and the closure 34 of the cam closure system can be matched with the shape of the closure hole 43; a cam shaft 37 penetrating the cover 34, a cam being fixed to the cam shaft 37, and a cam head 39 including a plurality of protrusions configured as friction surfaces;

a flat key 38 is arranged on the cam shaft 37, and the manual brake handle 6 includes a groove for engaging with the flat key 38, and the manual brake handle 6 is mounted on the cam shaft 37 through the flat key 38.

The utility model discloses a further technical scheme lies in, has arranged torsional spring 35 and locking part bearing 36 on the camshaft 37.

The utility model discloses a further technical scheme lies in, can extrude the rope and make the rope can not remove between cam head 39 and the cam locking assembly friction surface.

The utility model discloses a further technical scheme lies in, and the distance between cam head 39 and the cam locking subassembly friction surface is less than the diameter of rope.

The utility model discloses further technical scheme lies in, contains the screw hole on the closing cap 34, can fix closing cap 34 on the casing through the screw.

Adopt above technical scheme the utility model discloses, for prior art have following beneficial effect: the machine uses a battery to drive a motor to rotate, the motor is decelerated through a speed reducer and is connected with a driving shaft, the driving shaft rotates a rope, the rope is driven to move through a guide device and a tensioning device, and the movement of the rope drives a heavy object to be lifted. The purpose of quickly lifting heavy objects is achieved, and convenience and safety are achieved.

Drawings

To further illustrate the present invention, the following description is made with reference to the accompanying drawings:

fig. 1 and 2 are schematic views of the overall structure;

3-5 are schematic views of the structure of the tension part;

6-9 are schematic structural views of the braking part;

more specifically:

FIG. 1 is an exploded view of the overall structure of the utility model;

FIG. 2 is an overall structure view of the utility model;

fig. 3 is a state diagram of the tension structure after installation;

fig. 4 is a partial view of the tension state of the utility model;

FIG. 5 is a schematic view of the tension head;

fig. 6 is a schematic view of the braking portion of the utility model;

FIG. 7 is a schematic view of a portion of the rotating shaft of the brake portion;

FIG. 8 is a schematic view of a cam insert configuration;

FIG. 9 is a schematic view of a manual brake handle;

FIG. 10 is a schematic view of step 1 of cord loading;

FIG. 11 is a schematic view of step 2 of rope loading;

FIG. 12 is a schematic view of step 3 of cord loading;

FIG. 13 is a schematic view of step 4 of rope loading;

FIG. 14 is a schematic view of step 1 of the operation of the lifting device;

FIG. 15 is a schematic view of the operation of the elevator at step 2;

FIG. 16 is a schematic view of the operation of the lifting device at step 3;

FIG. 17 is a schematic view of the operation of the lifting device at step 4;

FIG. 18 is a schematic view of the operation of the lifting device at step 5;

FIG. 19 is a schematic view of the operation of the lifting device at step 6;

wherein: 1. a housing; 2. a battery label; 3. a motor; 4. a top connection point of the double rope system; 5. a brake tag; 6. a manual brake handle; 7. tensioning the knob label; 8. a tensioner adjustment knob; 9. a personal rope-secured bottom attachment point; 10. a rechargeable battery; 11. a variable speed thumbwheel control system; 12. a battery indicator light; 13. a motor power output shaft; 14. a guide assembly; 15. a guide assembly aperture; 16. a guide rope groove; 17. a drive shaft; 18. a tensioner spring; 19. a rope entry hole; 20. a cam insert; 21. a cam lock assembly; 22. a rope exit hole; 23. the guide assembly is provided with a rope outlet; 24. the guide assembly enters the rope inlet; 25. a tensioning head; 26. a rope; 27. an upper space; 28. a telescopic shaft; 29. a lower space; 30. a partition wall; 31. a lever arm; 32. a lever fulcrum; 33. a drive wheel; 34. sealing the cover; 35. a torsion spring; 36. locking the partial bearing; 37. a camshaft; 38. a flat bond; 39. a cam head; 40. battery fastening; 41. a shell is buckled; 42. an adjustment shaft; 43. an adjustment sheet; 44. a clamping portion; 45. a cam insert insertion hole; 43. closing the cover hole; 47. cam lock assembly friction surface.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features. Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The fixing mode which is not described in the text can be any one of the fixing modes such as thread fixing, bolt fixing or glue bonding.

The first embodiment is as follows: with reference to all of the accompanying drawings; a novel lifting device is characterized by comprising a shell 1, wherein a motor 3 is fixed on the shell 1, a motor power output shaft 13 of the motor 3 extends into a guide assembly hole 15 of a guide assembly 14, the motor power output shaft 13 is in power connection with a driving shaft 17, the end part of the driving shaft 17 comprises a driving wheel 33, and a rope 26 can be wound on the driving shaft 17; the side of the guide assembly 14 comprises a guide assembly rope outlet 23, and the shell 1 comprises a rope outlet hole 22 corresponding to the guide assembly rope outlet 23; a guide assembly rope inlet 24 is arranged above the guide assembly 14, and a rope inlet hole 19 corresponding to the guide assembly rope inlet 24 is formed in the shell 1; the motor 3 rotates to drive the rope to lift. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: a personal lift is a new utility lift for lifting objects with battery-powered cord, and portable cord lifts will be an indispensable tool in some of the most challenging high-altitude commercial markets. In outdoor sports, portable and economical rope elevators are widely used in today's most popular emerging sports. The machine uses a battery to drive a motor to rotate, the motor is decelerated through a speed reducer and is connected with a driving shaft, the driving shaft rotates a rope, the rope is driven to move through a guide device and a tensioning device, and the movement of the rope drives a heavy object to be lifted. The purpose of quickly lifting the heavy object is achieved. The motor and the speed reducer of this patent can set up by the integration. This embodiment at least has the effect of realizing rope lift, has realized this technical goal at least. The machine has the characteristics of single-person operation, small size, convenience, safety and practicability.

Example two: as a further modification or a side-by-side or an alternative independent solution, a rechargeable battery 10 is further included, and the rechargeable battery 10 is detachably mounted on the housing 1. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: by adopting the embodiment, the rechargeable battery can be carried, and continuous cruising and use are realized.

Example three: as a further development or in parallel or alternatively independently, the casing 1 comprises on one side an outer cover able to close the casing, on which cover a handle is arranged, on which handle a variable speed thumbwheel control system 11 is arranged. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the motor drive of the machine is controlled by a handle thumbwheel which controls the speed of the drive shaft by variable speed control, the thumbwheel is pulled down to start the motor, and the thumbwheel springs back to a neutral "off" position. The machine is lowered by releasing the hand brake, holding the handle with the left hand to hold it steady, and pulling the hand brake/lowering handle downward with the right hand. The lowering speed can be controlled by pushing up/pulling down the manual brake/lowering handle. Pulling down the hand brake/drop handle, accelerating the drop, pushing up the hand brake/drop handle, slowly dropping/stopping/locking. The variable speed thumbwheel control system 11 is model TS/28-5-S.

Example four: as a further development or a side-by-side or alternatively a separate solution, a top connection point 4 of the double rope system is arranged above the housing 1. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the top connecting point 4 of the double-rope system can be further connected with a rope, so that the bearing capacity is enhanced, and the operation is realized by using multiple sections of ropes.

Example five: as a further development or in a side-by-side or alternatively independent solution, a bottom connection point 9 for fastening a personal rope is arranged below the housing 1. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the personal lanyard attachment bottom attachment point 9 is used to attach an additional lanyard for added stability.

Example six: as a further improvement or a parallel solution or an alternative independent solution, a plurality of labels are arranged on the housing, and the plurality of labels are a battery label 2, a brake label 5 and a tensioning knob label 7. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the label can be a common label or an electronic label by combining all the drawings, namely the label is displayed in a television display screen mode and can be flexibly selected according to different models of products.

Example seven: as a further development or in a juxtaposition or alternatively independently, the interior of the housing is divided into an upper space 27 and a lower space 29 by a partition wall 30. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the presence of the dividing wall 30 is critical and provides a spring-divided portion for the subsequent version of the tensioner; meanwhile, the upper space 27 constitutes a stable space for installing the guide assembly 14.

Example eight: as a further development, either in parallel or alternatively independently, the guide assembly 14 is located in the headspace 27; the guide assembly bore 15 includes a plurality of guide cord grooves 16 on the inner wall thereof. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the guide rope groove 16 is used for accommodating a rope, and continuous operation is realized.

Example nine: as a further improvement or a parallel solution or an alternative independent solution, a battery buckle 40 is arranged on the rechargeable battery 10, and a housing buckle 41 is arranged on the housing 1; both the battery catch 40 and the housing catch 41 can be detachably fastened. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: this embodiment provides a specific way to disassemble the rechargeable battery, and similar implementations are all within the scope of this patent.

Example ten: as a further development, either in parallel or alternatively independently, a tensioning device and a braking device are also included. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the respective solutions of the tensioning device and the braking device are independently stated in the following solutions, which are relatively independent parts, which are components that can be used or sold separately.

Scheme two is as follows:

example eleven: as a further improvement or a parallel solution or an alternative independent solution, the tensioning device of the novel lifting device is characterized in that the tensioning device comprises a tensioning device adjusting knob 8, the tensioning device adjusting knob 8 is fixedly connected with an adjusting shaft 42, the adjusting shaft 42 comprises a adjusting sheet 43, the adjusting shaft above the adjusting sheet 43 is clamped by a clamping part 44, the clamping part 44 is positioned at the end part of a lever arm 31, the middle part of the lever arm 31 is hinged with a lever fulcrum 32 through a hinged structure, the end part of the lever arm 31 is hinged with a telescopic shaft 28, and the upper part of the telescopic shaft 28 passes through a lower space 29, a partition wall 30 and an upper space 27; the telescopic shaft 28 passes through the tensioner spring 18, the tensioner spring 18 being able to be located on the partition wall 30; the tensioning head 25 is propped above the telescopic shaft 28; the tensioning head 25 is able to squeeze the drive shaft 17 and the cord wound around the drive shaft 17. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the adjustable tensioner allows for adjustment of tension based on different loads and cord sizes, and the user can adjust the tension so that a greater gripping force drives heavier loads and allows additional load retention. The machine uses a tensioning adjusting knob to adjust the tension of the lifter rope in the guide wheel through a mechanical lever principle. This patent a tensioning ware of the convenient nimble safe and reliable of small light in weight's personal operation can install the adjustment function that realizes the rope tensile force in the riser of little volume. The tensioner is designed to be a lifter shell provided with an adjusting knurled knob, the tension is transmitted through a lever mechanism to realize the forward and backward movement of the tension device, the rope is pushed to be tensioned in the guide groove in a seamless mode, and the tensioner can be operated by one hand.

Example twelve: as a further development or in parallel or alternatively independently, the fulcrum 32 comprises a triangular plate below the housing and a pivot through the triangular plate, which passes through the lever arm 31. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: a specific lever fulcrum realizing mechanism is provided in combination with all drawings, particularly the drawings corresponding to the scheme II, such as fig. 3. Similar implementations are within the scope of this patent.

Example thirteen: as a further development or in a side-by-side or alternatively independent solution, the tensioning head 25 comprises, above it, a plurality of protrusions, which are friction protrusions, able to press the drive shaft 17 and the rope wound on the drive shaft 17; circular gaps are formed among the bulges, and the bulges comprise circular edges to prevent the rope from being worn; the protrusions are arranged obliquely or spirally. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the round edge prevents the rope from being worn; a spiral shape for seamless rope guiding; providing tension to the drive rope; allows for adjustment of various rope diameters; adjustable tensioners allow for adjustment of tension for different loads and cord sizes. The spring allows for the use of cords of various sizes in the device. The user can adjust the tension so that a greater gripping force drives a heavier load and allows additional load retention.

Example fourteen: as a further improvement or in parallel or alternatively independently, the upper half of the adjustment shaft 42 is a threaded section, and the housing includes a threaded bore into which the threaded section is threadedly mounted. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: this embodiment provides a concrete revolution mechanic, realizes reciprocating whole realization adjustment extruded function.

Example fifteen: as a further development or in a side-by-side or alternatively independent solution, the tab 43 has a circular sheet-like structure. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the circular sheet structure can push one side of the lever arm 31 to lift.

Example sixteen: as a further development or in a side-by-side or alternatively independent solution, the upper side of the tensioning head 25 can pass below the guide assembly hole 15. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: this embodiment, referring to fig. 3, enables positioning pressing.

In general terms: the copper material of the tensioning device assembly reduces surface friction; the tensioner adjustment knob allows for tension adjustment; clockwise rotation to remove tension from the load or remove line; counterclockwise rotation to increase the tension driving and maintaining a greater load; easy gripping, surface knurling mechanical advanced linkage system and convenient operation. The structure is compact, and the tension can be adjusted through a hand wheel lever mechanism. The tensioner is made of copper, surface friction is reduced, the circular edge design prevents rope abrasion, and the spiral seamless rope is formed. Adjustable tensioners allow for adjustment of tension for different loads and cord sizes. The springs allow for the use of springs of various gauges in the device.

The third scheme is as follows:

example seventeen: as a further development or a parallel development or an alternative independent development, a new brake device for a lifting device is characterized in that the housing 1 comprises a cam insert insertion opening 45 and a cover opening 43; the cover hole 43 is positioned below the cam insert insertion hole 45, and a space for passing a rope is formed between the cover hole 43 and the cam insert insertion hole 45, namely, the height of the rope outlet hole 22 is positioned between the cover hole 43 and the cam insert insertion hole 45;

the cam insert insertion hole 45 can be inserted with the cam insert 20, and the cam insert 20 is provided with cam locking component friction surfaces above and below;

a cam closure system can be inserted into the closure hole 43, and the closure 34 of the cam closure system can be matched with the shape of the closure hole 43; a cam shaft 37 penetrating the cover 34, a cam being fixed to the cam shaft 37, and a cam head 39 including a plurality of protrusions configured as friction surfaces;

a flat key 38 is arranged on the cam shaft 37, and the manual brake handle 6 includes a groove for engaging with the flat key 38, and the manual brake handle 6 is mounted on the cam shaft 37 through the flat key 38. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the brake is designed to be "on" at all times. The rope can pass through the braking mechanism in the forward lifting process of the rope, when power stops, the brake can brake and fix the rope to stop at the original position, the handle is manually moved to release braking friction force, heavy object descending can be achieved, and the rope safety operation control device is widely applied to the rope of the lifter. The brake is designed to be always "on". The handle is manually disassembled to stop locking, so that the aim of unlocking is fulfilled. The machine uses a pair of combination cam mechanisms, a cam insert, a cam lock assembly, fitted with a release handle, for clamping the rope and forming a wedge by a special design of the cam head tooth profile. The rounded edges prevent the rope from wearing. The lock is automatically braked from twisting. A cam insert cam head for gripping the cord and forming a wedge rounded edge to prevent cord wear, an upper cam connected to the cam to provide retention. Torque transmitted through the key coupling, comfortable ergonomic design. The brake can adjust the unlocking brake friction force according to the amplitude of the handle to control the speed of descending the heavy object.

The wedge-shaped brake block has the advantages of light weight, small volume, convenient and flexible operation, capability of realizing braking, safety and reliability, capability of realizing automatic braking in a stop state by forming a wedge space through a pair of cams, controllable descending speed through a handle and convenient operation. The brake is characterized in that: for clipping the rope and forming a wedge. The rounded edges prevent the rope from wearing.

The embodiment provides an automatic braking mechanism of a lifter, so that the lifter can stop automatic self-locking at any position in the air, and the unlocking handle is convenient to open and can control the descending speed. A brake with small volume and light weight, convenient, flexible, safe and reliable operation for individuals can be installed in a lifter with small volume to realize the automatic braking function. The brake is designed to always "turn on" the torsion spring speed so that the device can push the rope out without opening the brake through the brake handle. The brake is opened by pulling down the brake handle.

Example eighteen: as a further development or in parallel or alternatively independently, a torsion spring 35 and a locking part bearing 36 are arranged on the camshaft 37. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the present embodiment provides a specific internal structure of the twist structure, which can refer to a general door handle or the like.

Example nineteenth: as a further alternative or in parallel or alternatively independently, the cam head 39 and friction surface of the cam lock assembly can compress the cable so that it cannot move. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the design of the tooth-shaped structure and the round angle of the tooth-shaped head reduces the abrasion of the rope, and can well solve the problem which cannot be solved by the traditional brake. The brake utilizes torsion of the torsion spring to automatically brake, and simultaneously, the bearing shafts at the two ends of the handle are connected with the handle integrated structure, so that the brake is convenient and quick to operate, safe and reliable. The structure is more compact by adopting double cam tooth buckling, namely the matching between the cam head 39 and the friction surface of the cam locking component.

Example twenty: as a further refinement or in parallel or alternatively independently, the distance between the cam head 39 and the friction surface of the cam lock assembly is less than the diameter of the cable. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the extrusion effect is good.

Example twenty one: as a further development or in a side-by-side or alternatively independent solution, the cover 34 comprises threaded holes, by means of which the cover 34 can be fixed to the housing. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: this embodiment provides a specific fixing structure, and similar implementation structures are all within the scope of this patent.

Cam-locked cam heads are used to grip the rope and form a wedge. The round edge prevents the rope from being worn and automatically brakes the lock to twist. A cammed head of the cam insert for gripping the cord and forming a wedge; rounded edges to prevent wear of the cable, and an upper cam coupled to the cam to provide retention. Brake handle-allowing deactivation of the drop brake, torque transmitted through the key coupling, comfortable ergonomic design.

As a further non-limiting illustration, based on one particular implementation of the disclosure; (refer to the corresponding figures)

Rope loading:

step 1: the red tensioner knob is fully rotated in the counterclockwise (left) direction until the rocker arm bottoms out on the riser housing. This will pull down the tensioner and create space for the rope to enter the system. It is ensured that the red knob, i.e. the push button shown in fig. 10, is fully rotated counter-clockwise (left) until it can no longer be rotated. The red color here does not pose a limitation.

Step 2: an approved static cord is inserted into the cord entry hole. Pushing it to a stop. Tapping the thumbwheel system while pushing the cord should have pulled in about 2 inches (5 cm) of cord. Refer to fig. 11, step 2 schematic diagram of cord loading.

And 3, step 3: the red brake handle is now pulled down gently, slowly rolling the thumbwheel downward until the cord exits the cord exit hole. Refer to fig. 12, which is a schematic view of step 3 of rope loading.

And 4, step 4: before rising, the red tensioner knob is rotated clockwise (right) until hand tightened. Refer to fig. 13, which is a schematic view of step 4 of rope loading.

And 5, step 5: the thumbwheel is slowly rolled downwards to use up the slack part of the climbing line.

Operation of the lifting device:

step 1: the present lift is attached to your harness using the lower housing attachment points using a latch allowed by the rated load. Referring to fig. 14, which is a schematic view of the step 1 operation of the lifting device;

step 2: the thumbwheel is slowly rotated downward to begin the ascent. The thumbwheel switch is a variable-speed thumbwheel, and the more the user rolls the thumbwheel downwards, the faster the ascending speed is. (Note: during ascent, the brake is always automatically engaged. When you release the thumbwheel, the device will automatically brake in this position.) referring to FIG. 15, step 2 schematic of the elevator operation;

and 3, step 3: after the required height is reached, only the thumbwheel needs to be loosened. The brake will automatically fix you in place. Referring to fig. 16, which is a schematic view of the operation of the lifting device at step 3;

and 4, step 4: in preparation for descent, the thumbwheel is preferably tapped (jogged) and the brake handle is simultaneously pulled down. This will help protect your rope. If the electricity is exhausted and no electricity exists, the brake handle can be pulled away by a user to be descended. (Note: if you pull the brake handle away but not drop or drop very slowly, because the tensioner knob is set too tight for your weight to lift.turn the red tensioner knob 1-2 turns counterclockwise (left) to remove tension and repeat the steps.) refer to FIG. 17, which is a schematic diagram of step 4 of the elevator operation;

and 5, step 5: when descending, you can best control speed and braking by gripping the rope tail with the right hand, while fully opening (down) the brake handle with the left hand. The left hand remains fully open (down) braking and speed can be controlled if the rope is pulled lightly with the right hand while descending. If you tighten, the device will stop and you can release the brake to keep the position. This is the best way to protect the rope. (Note: you can release the brake at any time to stop.) refer to FIG. 18, which is a schematic diagram of step 5 of the operation of the elevator;

and 6, step 6: once you have returned to the ground safely and the system has been sufficiently slack, you can now release from the lift by releasing the brakes. (Note: you can fully open the brake handle and roll the thumbwheel down to increase the slack in the system-this reverses the rope out of the system.) the brakes are fully opened (down) and the thumbwheel is rotated down. Keeping the brake open will activate the reverse function and remove the rope from the system. Note that: when you reach the end of the rope, the rope may not be fully ejected from the system. If this happens, the thumbwheel is released and the cord is pulled by hand. If the riser is not equipped with the reverse function (the red tensioner knob is rotated fully clockwise (to the right) until it can no longer rotate then the brake is opened by pulling down and the rope is taken out of the system you will return to driving the gearbox and therefore some tension is required referring to figure 19, step 6 schematic of the riser operation;

generally speaking, this patent provides a convenient, flexible, safe and reliable's of small light in weight riser of individual operation, can adapt to under narrow space, the complex environment, promotes the purpose of heavy object. The whole lifter can be operated by a person, the operation is flexible and convenient, the control is convenient, a clean and environment-friendly battery is adopted for driving to provide energy, and the operation is flexibly and freely controlled by the thumbwheel and the brake handle through mechanical and electrical control. The machine is compact in structure, and the battery, the motor, the speed reducer and the rope enter the guide wheel, the driving wheel, the tensioning device, the control handle finger wheel and the brake handle to be intensively arranged, so that an integrated integral machine type is formed, the size is small, the function is strong, the operation is convenient, and the heavy object lifting effect can be quickly and safely realized. A tensioning device: adjustable tensioners allow for adjustment of tension for different loads and cord sizes. The spring allows for a variety of sizes of cords to be used in the device, and the user can adjust the tension so that a greater gripping force drives heavier loads and allows additional load retention. The lifter is controlled by an electric controller and a handle thumbwheel to control lifting, a hand wheel of a tensioning device can be rotated according to actual lifting weight for adjustment, a manual brake handle is adopted for lowering, the lowering speed is controlled by moving the brake handle in a large and small range, the brake handle can be loosened at any position for automatic locking, and the lifter stays at a required position. The whole integrated machine has light weight and small volume and can be operated by one person. The rope is used to be lifted into the lifter through the guide device, and the hand wheel of the tensioning device can adjust the tensioning degree of the rope according to needs, so that objects with different weights can be lifted. The thumbwheel for controlling the motor is arranged on the handle, so that the operation is convenient. The lifter shell is provided with a lower hook for hanging heavy objects and a hook at the top of the double ropes, so that the use is safe and reliable, and the operation is flexible and convenient.

The lifting device has the advantages of light weight, small volume, capability of realizing personal lifting, convenient and flexible lifting operation, safety and reliability by electrically controlling the lifting through the thumbwheel and the brake handle, personal control of the lifting and descending speed and convenient operation. The lifting weight can be adjusted through the tensioning device, the machine body shell is integrally provided with the top connecting point and the bottom connecting point which are connected through the double ropes, the battery capacity is large, and the residual electric quantity can be observed at any time through the electric quantity display device. The lifter is provided with a manual brake device, and the descending speed or stopping can be controlled by the handle. The cam mechanism is safe and reliable in locking.

Creatively, the above effects exist independently, and the combination of the above results can be completed by a set of structure.

It should be noted that the plurality of schemes provided in this patent include their own basic schemes, which are independent of each other and are not restricted to each other, but they may be combined with each other without conflict, so as to achieve a plurality of effects.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. The brake device of the novel lifting device is characterized in that a shell (1) comprises a cam insert insertion hole (45) and a cover hole (43); the cover hole (43) is positioned below the cam insert insertion hole (45), and a rope passing space is formed between the cover hole (43) and the cam insert insertion hole (45), namely the height of the rope outlet hole (22) is positioned between the cover hole (43) and the cam insert insertion hole (45);

the cam insert (20) can be inserted into the cam insert insertion hole (45), and cam locking component friction surfaces are arranged above and below the cam insert (20);

a cam cover sealing system can be inserted into the cover sealing hole (43), and a cover (34) of the cam cover sealing system can be matched with the shape of the cover sealing hole (43); the cam shaft (37) penetrates through the sealing cover (34), a cam is fixed on the cam shaft (37), and a cam head (39) comprises a plurality of protrusions which are formed into friction surfaces;

a flat key (38) is arranged on the cam shaft (37), a groove matched with the flat key (38) is formed in the manual brake handle (6), and the manual brake handle (6) is installed on the cam shaft (37) through the flat key (38).

2. A novel brake device for a lifting device, as claimed in claim 1, characterized in that the cam shaft (37) is provided with a torsion spring (35) and a locking part bearing (36).

3. A novel brake rigging for a lifting device, according to claim 1, wherein the friction surface between the cam head (39) and the cam lock assembly is adapted to compress the rope to prevent it from moving.

4. A novel brake rigging for a lifting device, according to claim 3, wherein the distance between the cam head (39) and the friction surface of the cam lock assembly is less than the diameter of the rope.

5. A novel brake rigging for a lifting device, according to claim 1, wherein the cover (34) includes threaded holes to enable the cover (34) to be secured to the housing by screws.

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