CN217816273U - Lifting device and lighting equipment - Google Patents
Lifting device and lighting equipment Download PDFInfo
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- CN217816273U CN217816273U CN202221979495.3U CN202221979495U CN217816273U CN 217816273 U CN217816273 U CN 217816273U CN 202221979495 U CN202221979495 U CN 202221979495U CN 217816273 U CN217816273 U CN 217816273U
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Abstract
The utility model provides a lifting device and lighting apparatus, wherein lifting device includes: the bottom rod is internally provided with a first sliding cavity, and the top of the bottom rod is provided with a first sliding opening communicated with the first sliding cavity; each lifting rod is internally provided with a second sliding cavity, the top of each lifting rod is provided with a second sliding opening communicated with the second sliding cavity, the plurality of lifting rods are sequentially arranged along the length direction of the lifting rods, the first lifting rod is arranged in the first sliding cavity of the bottom rod in a sliding manner, the next lifting rod is arranged in the second sliding cavity of the previous lifting rod in a sliding manner, and the two adjacent lifting rods are connected in a transmission manner; the power part is in transmission connection with the first lifting rod and is used for driving the plurality of lifting rods to lift; the anti-falling device is connected with at least one lifting rod; by adopting the technical scheme, when the connecting lifting rod suddenly falls, the anti-falling device is triggered, and the anti-falling device tightens the anti-falling cable, so that the lifting rod stops falling, and the lifting rod and the lighting device arranged on the lifting rod are protected.
Description
Technical Field
The utility model relates to a lighting apparatus's technical field, more specifically say, relate to a lifting device and lighting apparatus.
Background
Based on the country, the consumption level of people is improved, the life quality of people is improved, the camping consumption is vigorously advocated, the site of the camping consumption belongs to the field environment and is usually remote, so that portable and mobile lighting equipment is essential equipment, and a lifting rod used by the mobile lighting equipment is the most important component of the mobile lighting equipment, and the safety, reliability and lightness of the lifting rod become the material guarantee of the camping consumption;
original mobile lighting equipment, though also can solve the mobile lighting lift problem, but the lifter can lead to falling fast because mechanical failure splits at the lift in-process, but the safe and reliable problem that can solve the lifter and drop suddenly on the existing market hardly, consequently has certain use potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lifting device and lighting apparatus to solve the technical problem that the over-and-under type lighting apparatus who exists leads to the potential safety hazard because of the lifter drops suddenly among the prior art.
In order to achieve the purpose, the utility model adopts the technical proposal that:
in a first aspect, there is provided a lifting device comprising:
the bottom rod is internally provided with a first sliding cavity, and the top of the bottom rod is provided with a first sliding opening communicated with the first sliding cavity;
each lifting rod is internally provided with a second sliding cavity, the top of each lifting rod is provided with a second sliding opening communicated with the second sliding cavity, the plurality of lifting rods are sequentially arranged along the length direction of the lifting rods, the first lifting rod is arranged in the first sliding cavity of the bottom rod in a sliding manner, the next lifting rod is arranged in the second sliding cavity of the previous lifting rod in a sliding manner, and the two adjacent lifting rods are in transmission connection;
the power part is in transmission connection with the first lifting rod and is used for driving the plurality of lifting rods to lift;
and the anti-falling device is connected with at least one lifting rod.
By adopting the technical scheme, the anti-falling device is arranged on at least one lifting rod, so that when the connecting lifting rod suddenly falls, the anti-falling device is triggered, the anti-falling device tightens the anti-falling cable, the lifting rod stops falling, and the lifting rod and the lighting device arranged on the lifting rod are protected.
In one embodiment, the anti-falling device is connected with two adjacent lifting rods, a first anti-falling pulley is arranged on one side wall of the top of the first lifting rod of the two lifting rods, a second anti-falling pulley is arranged on two opposite side walls of the bottom of the second lifting rod of the two lifting rods, the anti-falling device is provided with a telescopic anti-falling cable, one end of the anti-falling cable is wound on the anti-falling device, the other end of the anti-falling cable is fixed on the side wall of the top of the first lifting rod opposite to the side wall provided with the first anti-falling pulley, and the anti-falling cable is sequentially wound on the first anti-falling pulley and the second anti-falling pulley;
when the descending speed of the lifting rod exceeds a threshold value, the anti-falling device tightens the anti-falling cable to enable the lifting rod to stop descending.
Through adopting above-mentioned technical scheme, anti-falling device can prevent falling suddenly of lifter, has improved the security of lifter and the lighting device who arranges on the lifter.
In one embodiment, the anti-falling device is connected with a first lifting rod, a first anti-falling pulley is arranged on one side wall of the top of the bottom rod, a second anti-falling pulley is arranged on two opposite side walls of the bottom of the first lifting rod respectively, the anti-falling device is provided with a telescopic anti-falling cable, one end of the anti-falling cable is wound on the anti-falling device, the other end of the anti-falling cable is fixed on the side wall of the top of the bottom rod opposite to the side wall provided with the first anti-falling pulley, and the anti-falling cable is sequentially wound on the first anti-falling pulley and the second anti-falling pulley;
when the descending speed of the lifting rod exceeds a threshold value, the anti-falling device tightens the anti-falling cable to enable the lifting rod to stop descending.
Through adopting above-mentioned technical scheme, anti-falling device can prevent falling suddenly of first lifter, because first lifter is connected with other lifter transmissions, consequently anti-falling device can prevent simultaneously that a plurality of lifters from falling, has improved the lifter and has arranged the lighting device's on the lifter security.
In one embodiment, the anti-falling device comprises an anti-falling rotating wheel, a ratchet wheel, a pawl and an elastic piece, the anti-falling rotating wheel is connected with the bottom rod, the anti-falling rotating wheel can rotate around a shaft relative to the ratchet wheel, the ratchet wheel and the anti-falling rotating wheel are coaxially arranged, a plurality of tooth parts are circumferentially arranged on the ratchet wheel, the pawl is telescopically arranged on the anti-falling rotating wheel, and the elastic piece is connected with the pawl and the anti-falling rotating wheel;
the anti-falling rope is wound on the anti-falling runner, and when the rotating speed of the anti-falling runner exceeds a threshold value, the pawl stretches out of the periphery of the anti-falling runner under the action of centrifugal force and is clamped on one tooth part of the ratchet wheel.
By adopting the technical scheme, the anti-falling device is simple in structure and high in reliability.
In one embodiment, the power unit includes a hoisting structure, a first lifting pulley, two second lifting pulleys and a first lifting cable, the hoisting structure is fixedly connected to the bottom rod, the first lifting pulley is disposed on one of the side walls of the top of the bottom rod, the two second lifting pulleys are disposed on two opposite side walls of the bottom of the first lifting rod, the first lifting cable is wound on the hoisting structure, the hoisting structure is configured to stretch and retract the first lifting cable, one end of the first lifting cable is connected to the hoisting structure, the other end of the first lifting cable is fixedly connected to the side wall of the top of the bottom rod opposite to the side wall on which the first lifting pulley is disposed, and the first lifting cable is sequentially wound on the first lifting pulley and the second lifting pulley.
Through adopting above-mentioned technical scheme, the lift simple structure of first lifter just easily controls the lift.
In one embodiment, the power unit further includes two third lifting pulleys, two fourth lifting pulleys and a second lifting cable, the two third lifting pulleys are respectively disposed on two sides of the top of the second lifting rod of any group of three lifting rods arranged in sequence, the two fourth lifting pulleys are respectively disposed on two sides of the bottom of the third lifting rod of any group of three lifting rods arranged in sequence, wherein one third lifting pulley and one fourth lifting pulley correspond to each other in one group and are located on the same side;
the two ends of the second lifting cable are respectively fixed on any group of three of the lifting rods which are sequentially arranged, the first lifting rod is arranged on the two sides of the top of the lifting rod, the second lifting cable is sequentially wound on the third lifting pulley and the fourth lifting pulley which are positioned on the same side, and the fourth lifting pulley and the third lifting pulley which are positioned on the other side.
Through adopting above-mentioned technical scheme, a plurality of lifter go up and down in step, have improved the efficiency that the lifter goes up and down.
In one embodiment, the arrangement direction of the two third lifting pulleys on the first lifting rod of any one group of three lifting rods arranged in sequence is perpendicular to the arrangement direction of the two third lifting pulleys on the second lifting rod of any one group of three lifting rods arranged in sequence.
Through adopting above-mentioned technical scheme, the possibility that third lift pulley and fourth lift pulley between the different lifter interfered has been reduced.
In one embodiment, the lifting device further includes a top rod for arranging a lighting device, the top rod is slidably disposed in the second sliding cavity of the last lifting rod, a fifth lifting pulley is disposed at the bottom of the top rod, and the second lifting cable of the last lifting rod is wound around the third lifting pulley and the fifth lifting pulley.
By adopting the technical scheme, the lifting height of the lifting device is further improved.
In one embodiment, the top of the top rod is provided with a mounting plate for fixing a lighting device.
Through adopting above-mentioned technical scheme, the lighting device's of being convenient for installation.
In a second aspect, a lighting device is provided, which comprises a lighting device and the lifting device, wherein the lighting device is mounted on the top of the lifting device.
By adopting the technical scheme, the anti-falling device is arranged on at least one lifting rod, so that when the connecting lifting rod suddenly falls, the anti-falling device is triggered, the anti-falling device tightens the anti-falling cable, the lifting rod stops falling, and the lighting equipment is protected.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a three-dimensional structure diagram of a lifting device provided by the embodiment of the invention;
fig. 2 is a perspective structure view of a base and a bottom rod according to an embodiment of the present invention;
fig. 3 is a perspective structural view of a first lifting rod provided in the embodiment of the present invention;
fig. 4 is a perspective view of a second lifting rod according to an embodiment of the present invention;
fig. 5 is a sectional view of a lifting device provided in an embodiment of the present invention;
FIG. 6 is a schematic view of a fall arrest device according to an embodiment of the present invention;
fig. 7 is a perspective view of a top bar according to an embodiment of the present invention;
fig. 8 is a perspective view of another perspective view of the base and the bottom rod according to the embodiment of the present invention.
The figures are numbered:
1. a bottom bar; 2. a lifting rod; 3. a power section; 4. an anti-falling device; 5. a top bar; 6. a position sensor; 7. a base;
11. a first sliding chamber; 12. a first slide opening; 13. a first anti-falling pulley;
21. a second sliding chamber; 22. a second slide opening; 23. a second anti-falling pulley;
41. a fall preventing rope; 42. the anti-falling runner; 43. a ratchet wheel; 44. a pawl; 45. an elastic member; 46. a guide bar; 47. a guide wheel; 48. a protective cover;
31. a hoisting structure; 32. a first lifting pulley; 33. a second lifting pulley; 34. a first halyard; 35. a third lifting pulley; 36. a fourth lifting pulley; 37. a second halyard;
51. a fifth lifting pulley; 52. mounting a disc;
71. a first seat body; 72. a second seat body.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for the purpose of describing the invention only and are not intended to indicate that a device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The following describes a specific implementation of the present invention in more detail with reference to specific embodiments:
as shown in fig. 1 to fig. 3, an embodiment of the present invention provides a lifting device for adjusting the height of a lighting device to obtain a larger lighting area; it can be understood that the lighting device is fixed on the top of the lifting device, and the upgrading device changes the height of the upgrading device in a telescopic mode, so that the height of the lighting device on the top is adjusted; specifically, the lighting device comprises a plurality of lifting rods, two adjacent lifting rods are sleeved and can move relatively under the driving of the power part, and the whole body of the plurality of lifting rods can be extended or shortened. The following is illustrated by way of specific embodiments:
the lifting device comprises: the anti-falling device comprises a bottom rod 1, a plurality of lifting rods 2, a power part 3 and an anti-falling device 4;
the bottom rod 1 is internally provided with a first sliding cavity 11, and the top of the bottom rod 1 is provided with a first sliding opening 12 communicated with the first sliding cavity 11; it can be understood that, the bottom rod 1 is used for fixing on the ground and for supporting, the bottom rod 1 is fixed relative to the ground, and is provided with a first sliding cavity 11 inside, the first sliding cavity 11 is arranged along the length direction of the bottom rod 1, the top of the bottom rod 1 is provided with a first sliding opening 12, the caliber of the first sliding opening 12 matches with the size of the outer edge of the lifting rod 2, so that the lifting rod 2 can slide into the first sliding cavity 11 from the first sliding opening 12, and the first lifting rod 2 is in clearance fit with the first sliding cavity 11, so that the first lifting rod 2 can slide relative to the first sliding cavity 11.
A plurality of lifting rods 2 are arranged, a second sliding cavity 21 is arranged in each lifting rod 2, a second sliding opening 22 communicated with the second sliding cavity 21 is arranged at the top of each lifting rod 2, the plurality of lifting rods 2 are sequentially arranged along the length direction of each lifting rod 2, a first lifting rod 2 is arranged in the first sliding cavity 11 of the bottom rod 1 in a sliding manner, a next lifting rod 2 is arranged in the second sliding cavity 21 of the previous lifting rod 2 in a sliding manner, and two adjacent lifting rods 2 are in transmission connection; it can be understood that, referring to fig. 4 and fig. 5, there are N lifting rods 2, where N is a natural number greater than zero, where the first lifting rod 2 is slidably disposed in the bottom rod 1, the (N + 1) th lifting rod 2 is slidably disposed in the nth lifting rod 2, and the sizes of the outer edges of the plurality of lifting rods 2 are sequentially reduced from the bottom rod 1 upward, so that the weights of the lifting rods 2 are sequentially reduced, and the plurality of lifting rods 2 are conveniently extended to the height. Specifically, the plurality of lifting rods 2 are sequentially sleeved, that is, the next lifting rod 2 is slidably disposed in the previous lifting rod 2.
The power part 3 is in transmission connection with the first lifting rod 2 and is used for driving the plurality of lifting rods 2 to lift; it can be understood that the power part 3 includes, but is not limited to, a winding device, and the first lifting rod 2 is lifted or lowered by using a telescopic rope, and then the plurality of lifting rods 2 are synchronously lifted or lowered by the transmission connection of two adjacent lifting rods 2.
And the anti-falling device 4 is connected with at least one lifting rod 2. It will be appreciated that when the rate of descent of the lifting bar 2 exceeds a threshold value, the fall arrest device 4 tightens the fall arrest cable, stopping the descent of the lifting bar 2. Specifically, the fall height of the fall protection device 4 triggered is greater than or equal to 100mm, that is, the fall protection device 4 can be triggered only when the lifting rod 2 falls at a relative height greater than or equal to 100mm, and the fall hazard occurring at a height less than the fall height is small, and the fall protection device 4 does not need to be triggered.
By adopting the technical scheme, the anti-falling device 4 is arranged on at least one lifting rod 2, so that when the connecting lifting rod 2 suddenly falls, the anti-falling device 4 is triggered, the anti-falling device 4 tightens the anti-falling cable, the lifting rod 2 stops falling, and the lifting rod 2 and the lighting device arranged on the lifting rod 2 are protected.
In one embodiment, the anti-falling device 4 is connected with two adjacent lifting rods 2, a first anti-falling pulley 13 is arranged on one side wall of the top of the first lifting rod 2 in the two lifting rods 2, second anti-falling pulleys 23 are respectively arranged on two opposite side walls of the bottom of the second lifting rod 2 in the two lifting rods 2, the anti-falling device 4 is provided with a telescopic anti-falling cable 41, one end of the anti-falling cable 41 is wound on the anti-falling device 4, the other end of the anti-falling cable 41 is fixed on the side wall of the top of the first lifting rod 2 opposite to the side wall provided with the first anti-falling pulley 13, and the anti-falling cable 41 is sequentially wound on the first anti-falling pulley 13 and the second anti-falling pulley 23; it will be appreciated that the fall arrest device 4 serves to prevent the lifting rod 2 from suddenly dropping; specifically, the lifting rod 2 close to the bottom rod 1 of the two adjacent lifting rods 2 is a first lifting rod 2, the lifting rod 2 far from the bottom rod 1 of the two adjacent lifting rods 2 is a second lifting rod 2, the second lifting rod 2 is slidably disposed in the first lifting rod 2, the anti-falling cable 41 extends from the anti-falling device 4, winds around the first anti-falling pulley 13, extends into the second sliding cavity 21 of the first lifting rod 2, and extends towards the bottom of the second sliding cavity 21 until winding around the second anti-falling pulley 23 at the bottom of the second lifting rod 2, and finally, the tail end of the anti-falling cable 41 is fixed on the side wall of the top of the first lifting rod 2 opposite to the side wall on which the first anti-falling pulley 13 is disposed, that is, two ends of the anti-falling cable 41 are respectively located on two opposite side walls of the top of the first lifting rod 2.
When the descending speed of the lifting rod 2 exceeds the threshold value, the anti-falling device 4 tightens the anti-falling cable 41, and since the anti-falling cable 41 winds the second anti-falling pulley 23 arranged at the bottom of the second lifting rod 2, which is equivalent to suspending the second lifting rod 2 in the first lifting rod 2, when the anti-falling cable 41 stops being released, the second lifting rod 2 can not move downwards any more, namely, the second lifting rod 2 stops descending. When the descending speed of the second lifting rod 2 is a normal value, the anti-falling device 4 normally releases the anti-falling cable 41, and the anti-falling cable 41 is stretched by the second lifting rod 2, namely, the second lifting rod 2 normally descends.
By adopting the technical scheme, the anti-falling device 4 can prevent the lifting rod 2 from suddenly falling, and the safety of the lifting rod 2 and the lighting device arranged on the lifting rod 2 is improved.
In one embodiment, the anti-falling device 4 is connected with the first lifting rod 2, a first anti-falling pulley 13 is arranged on one side wall of the top of the bottom rod 1, second anti-falling pulleys 23 are respectively arranged on two opposite side walls of the bottom of the first lifting rod 2, the anti-falling device 4 is provided with a telescopic anti-falling cable 41, one end of the anti-falling cable 41 is wound on the anti-falling device 4, the other end of the anti-falling cable 41 is fixed on the side wall, opposite to the first anti-falling pulley 13, of the top of the bottom rod 1, and the anti-falling cable 41 is sequentially wound on the first anti-falling pulley 13 and the second anti-falling pulley 23; it will be appreciated that the fall arrest device 4 serves to prevent the first lifting rod 2 from suddenly dropping; specifically, the lifting rod 2 closest to the bottom rod 1 in the plurality of lifting rods 2 is a first lifting rod 2, the first lifting rod 2 is slidably disposed in the bottom rod 1, the anti-falling cable 41 extends from the anti-falling device 4, winds around the first anti-falling pulley 13, extends into the first sliding cavity 11 of the bottom rod 1, and extends toward the bottom of the first sliding cavity 11 until it winds around the second anti-falling pulley 23 disposed at the bottom of the first lifting rod 2, and finally, the tail end of the anti-falling cable 41 is fixed on the side wall of the top of the bottom rod 1 opposite to the side wall on which the first anti-falling pulley 13 is disposed, that is, the two ends of the anti-falling cable 41 are respectively located on the two opposite side walls of the top of the bottom rod 1.
When the falling speed of the first lifting rod 2 exceeds a threshold value, the fall protection cable 41 is tightened by the fall protection device 4, and since the fall protection cable 41 is wound around the second fall protection pulley 23 arranged at the bottom of the first lifting rod 2, which is equivalent to suspending the first lifting rod 2 in the bottom rod 1, when the fall protection cable 41 stops being paid out, the first lifting rod 2 cannot move downwards any more, that is, the first lifting rod 2 stops falling. When the descending speed of the first lifting rod 2 is a normal value, the anti-falling device 4 normally releases the anti-falling cable 41, and the anti-falling cable 41 is stretched by the first lifting rod 2, namely, the first lifting rod 2 normally descends.
Through adopting above-mentioned technical scheme, anti-falling device 4 can prevent falling suddenly of first lifter 2, because first lifter 2 is connected with other lifter 2 transmissions, consequently anti-falling device 4 can prevent simultaneously that a plurality of lifters 2 from falling, has improved lifter 2 and the security of arranging the lighting device on lifter 2.
In one embodiment, referring to fig. 6 together, the anti-falling device 4 includes an anti-falling wheel 42, a ratchet wheel 43, a pawl 44 and an elastic member 45, the anti-falling wheel 42 is connected with the bottom rod 1, the anti-falling wheel 42 can rotate around a shaft relative to the ratchet wheel 43, the ratchet wheel 43 and the anti-falling wheel 42 are coaxially arranged, the ratchet wheel 43 is circumferentially provided with a plurality of tooth parts, the pawl 44 is telescopically arranged on the anti-falling wheel 42, and the elastic member 45 connects the pawl 44 and the anti-falling wheel 42;
the fall preventing cable 41 is wound around the fall preventing wheel 42, and when the rotation speed of the fall preventing wheel 42 exceeds a threshold value, the pawl 44 is protruded from the outer periphery of the fall preventing wheel 42 by centrifugal force and is caught on one of the teeth of the ratchet wheel 43.
It can be understood that when the lifting rod 2 descends normally, the anti-falling cable 41 is pulled out of the anti-falling device 4 through the second anti-falling pulley 23 at the bottom, that is, the anti-falling cable 41 is released from the anti-falling runner 42, and at this time, the rotation speed of the anti-falling runner 42 is still within the threshold value, so that the pawl 44 is retracted in the anti-falling runner 42 under the elastic force of the elastic member 45, that is, the pawl 44 does not protrude from the anti-falling runner 42, and the anti-falling runner 42 can rotate normally to release the anti-falling cable 41, so that the lifting rod 2 descends normally; when the lowering speed of the lifting rod 2 exceeds a threshold value, the rotational speed of the safety brake runner 42 exceeds the threshold value, whereupon the pawl 44 projects out of the edge of the safety brake runner 42 under the influence of centrifugal force and snaps into one of the teeth of the ratchet wheel 43, so that the rotation of the safety brake runner 42, i.e. at the same time the paying-out of the safety brake cable 41, is stopped and the lifting rod 2 stops lowering.
By adopting the technical scheme, the anti-falling device 4 is simple in structure and high in reliability.
In one embodiment, the anti-falling device 4 further comprises a guide rod 46 and a guide wheel 47, one end of the guide rod 46 is abutted with the first anti-falling pulley 13, the other end of the guide rod 46 is provided with the guide wheel 47, the anti-falling cable 41 is wound on the first anti-falling pulley 13, the guide wheel 47 and the anti-falling runner 42 in sequence, and the anti-falling cable 41 is slidably arranged in a guide cavity inside the guide rod 46.
It will be appreciated that the fall arrest cable 41 will move at a high speed in the event of a fall in the lifter bar 2, and as such the fall arrest cable 41 will tend to fall off the first fall arrest pulley 13 and fall arrest runner 42, causing the fall arrest function to fail.
By adopting the technical scheme, the directional movement of the fall preventing cable 41 is guided, and the possibility that the fall preventing cable 41 falls off accidentally is reduced.
In one embodiment, the fall arrest device 4 further includes a shield 48 disposed over the fall arrest runner 42.
It will be appreciated that the fall arrest runner 42 will rotate at high speed in the event of a fall in the lifter bar 2, which could easily cause injury to personnel if the fall arrest runner 42 is exposed.
By adopting the technical scheme, the anti-falling runner 42 is accommodated in the protective cover 48, so that the protection performance of operators is improved.
In one embodiment, the power unit 3 includes a hoisting structure 31, a first lifting pulley 32, two second lifting pulleys 33 and a first lifting cable 34, the hoisting structure 31 is fixedly connected to the bottom rod 1, the first lifting pulley 32 is disposed on one side wall of the top of the bottom rod 1, the two second lifting pulleys 33 are respectively disposed on two opposite side walls of the bottom of the first lifting rod 2, the first lifting cable 34 is wound on the hoisting structure 31, the hoisting structure 31 is used for extending and retracting the first lifting cable 34, one end of the first lifting cable 34 is connected to the hoisting structure 31, the other end of the first lifting cable 34 is fixedly connected to the side wall of the top of the bottom rod 1 opposite to the side wall on which the first lifting pulley 32 is disposed, and the first lifting cable 34 is sequentially wound on the first lifting pulley 32 and the second lifting pulley 33.
It will be appreciated that the hoisting structure 31 retracts the first halyard 34 by forward rotation, and releases the first halyard 34 by reverse rotation, and since one end of the first halyard 34 is wound around the hoisting structure 31, the other end of the first halyard 34 is fixed to the bottom bar 1, and after the first halyard 34 is extended from the hoisting structure 31, it is further inserted into the bottom bar 1 and extended into the first sliding chamber 11 and extended toward the bottom of the first sliding chamber 11, and finally, the first halyard 34 is sequentially wound around the first and second halyards 32 and 33.
Specifically, the first lifting rope 34 extends into the first sliding chamber 11, i.e. the first lifting rope 34 suspends the first lifting rod 2 in the first sliding chamber 11 through the second lifting pulley 33 at the bottom, and the hoisting structure 31 retracts the first lifting rope 34, i.e. the length of the first lifting rope 34 is shortened, i.e. the first lifting rope 34 lifts the first lifting rod 2, i.e. the first lifting rod 2 is lifted relative to the bottom rod 1; when the hoisting structure 31 pays out the first hoisting rope 34, the length of the first hoisting rope 34 is increased, that is, the first hoisting rope 34 puts down the first hoisting bar 2, that is, the first hoisting bar 2 is lowered relative to the bottom bar 1.
Through adopting above-mentioned technical scheme, the lift simple structure of first lifter 2 just easily controls the lift.
In one embodiment, the power unit 3 further includes two third lifting pulleys 35, two fourth lifting pulleys 36 and a second lifting cable 37, the two third lifting pulleys 35 are respectively disposed on two sides of the top of the second lifting rod 2 in any group of three lifting rods 2 arranged in sequence, the two fourth lifting pulleys 36 are respectively disposed on two sides of the bottom of the third lifting rod 2 in any group of three lifting rods 2 arranged in sequence, wherein one third lifting pulley 35 and one fourth lifting pulley 36 correspond to each other in one group and are located on the same side;
both ends of the second lifting rope 37 are respectively fixed to both sides of the top of the first lifting rod 2 in any group of three lifting rods 2 arranged in sequence, and the second lifting rope 37 is sequentially wound around the third lifting pulley 35 and the fourth lifting pulley 36 which are positioned on the same side, and the fourth lifting pulley 36 and the third lifting pulley 35 which are positioned on the other side.
It can be understood that the winding structure 31 can make the first lifting rod 2 ascend or descend, and when the first lifting rod 2 ascends or descends, the plurality of lifting rods 2 can ascend or descend synchronously through the design;
specifically, since both ends of the second halyard 37 are fixed to both sides of the top of the first halyard 2, and the second halyard 37 sequentially winds around the third halyard 35 provided on the second halyard 2 and the fourth halyard 36 provided on the third halyard 2, that is, the second halyard 37 extends into the second sliding chamber 21 of the second halyard 2 and extends toward the bottom of the second sliding chamber 21 until it winds around the fourth halyard 36 provided on the bottom of the third halyard 2, so that the third halyard 2 is suspended from the second halyard 37, when the first and second halyards 2 and 2 are relatively pulled, the exposed second halyard 37 becomes long, which results in that the second halyard 37 extending into the second sliding chamber 21 of the second halyard 2 becomes partially short, so that the second halyard 37 lifts the third halyard 2, so that the third halyard 2 is relatively lifted; similarly, when the first lifter bar 2 and the second lifter bar 2 are relatively shortened, the exposed second lifter cable 37 is shortened, which causes the second lifter cable 37 extending into the second sliding chamber 21 of the second lifter bar 2 to be partially lengthened, so that the second lifter cable 37 lowers the third lifter bar 2, which causes the third lifter bar 2 to be relatively lowered;
it should be further explained that both ends of a second lifting rope 37 are fixed to both sides of the top of the bottom bar 1, and the second lifting rope 37 is wound around the third lifting pulley 35 of the first lifting bar 2 and the fourth lifting pulley 36 of the second lifting bar 2 in turn, i.e., the second lifting rope 37 is inserted into the second sliding chamber 21 of the first lifting bar 2 and extends toward the bottom of the second sliding chamber 21 until it is wound around the fourth lifting pulley 36 of the bottom of the second lifting bar 2, so that it is equivalent to the second lifting bar 2 being hung on the second lifting rope 37, and thus the second lifting bar 2 can be lifted and lowered synchronously with the first lifting bar 2.
Through adopting above-mentioned technical scheme, a plurality of lifter 2 go up and down in step, have improved the efficiency that lifter 2 goes up and down.
In one embodiment, the arrangement direction of the two third lifting pulleys 35 on the first lifting rod 2 in any one group of three lifting rods 2 arranged in sequence is perpendicular to the arrangement direction of the two third lifting pulleys 35 on the second lifting rod 2 in any one group of three lifting rods 2 arranged in sequence.
It can be understood that the arrangement directions of the third lifting pulley 35 and the fourth lifting pulley 36 in one lifting rod 2 are the same, that is, the arrangement direction of the two fourth lifting pulleys 36 on the first lifting rod 2 in any group of three lifting rods 2 arranged in sequence is perpendicular to the arrangement direction of the two fourth lifting pulleys 36 on the second lifting rod 2 in any group of three lifting rods 2 arranged in sequence; specifically, the two adjacent second halyard 37 are alternately disposed in a staggered manner to prevent interference.
By adopting the technical scheme, the possibility of interference of the third lifting pulley 35 and the fourth lifting pulley 36 between different lifting rods 2 is reduced.
In one embodiment, as shown in fig. 7, the lifting device further comprises a top rod 5 for arranging the lighting device, the top rod 5 is slidably disposed in the second sliding cavity 21 of the last lifting rod 2, a fifth lifting pulley 51 is disposed at the bottom of the top rod 5, and the second lifting cable 37 of the last lifting rod 2 is wound around the third lifting pulley 35 and the fifth lifting pulley 51.
It will be appreciated that the top bar 5 is raised and lowered in synchronism with the plurality of lifting bars 2.
By adopting the technical scheme, the lifting height of the lifting device is further improved.
In one embodiment, the top of the top bar 5 is provided with a mounting plate 52 for securing a lighting device.
It will be appreciated that the mounting plate 52 has a mounting surface for carrying and securing a lighting device.
Through adopting above-mentioned technical scheme, the lighting device's of being convenient for installation.
In one embodiment, as shown in fig. 8, the lifting device further comprises a position sensor 6, the position sensor 6 is arranged on the bottom rod 1, and a contact of the position sensor 6 extends into the first sliding cavity 11 of the bottom rod 1 and abuts against the lifting rod 2.
It will be appreciated that the position sensor 6 is electrically connected to the winding structure 31, and the position sensor 6 is used to sense the position of the lifting bar 2 and send position information to the winding structure 31, so that the winding structure 31 acquires the position information and controls the deployment of the first halyard 34.
Through adopting above-mentioned technical scheme, improved the degree of automation that lifter 2 goes up and down.
In one embodiment, the lifting device further comprises a base 7 for fixing on the ground, a fixing cavity is arranged in the base 7, and the bottom rod 1 is fixedly arranged in the fixing cavity.
Through adopting above-mentioned technical scheme, can further fix bottom pole 1 on ground, like this, improved elevating gear's stability.
In one embodiment, the base 7 includes a first base 71 and a second base 72 connected to the first base 71, a slot is formed on one side of the top of the first base 71, the second base 72 covers the slot, and a fixed cavity is formed by the first base 71 and the second base 72;
wherein, one of the first seat body 71 and the second seat body 72 is provided with a power part 3, and the other of the first seat body 71 and the second seat body 72 is provided with a falling prevention device 4.
Through adopting above-mentioned technical scheme, do benefit to the installation of bottom pole 1, lifter 2 and top pole 5.
In a second aspect, a lighting device is provided, which comprises a lighting device and the lifting device, wherein the lighting device is mounted on the top of the lifting device.
By adopting the technical scheme, the anti-falling device 4 is arranged on at least one lifting rod 2, so that when the connecting lifting rod 2 suddenly falls, the anti-falling device 4 is triggered, the anti-falling device 4 tightens the anti-falling cable 41, the lifting rod 2 stops falling, and the lighting equipment is protected.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A lifting device, comprising:
the bottom rod is internally provided with a first sliding cavity, and the top of the bottom rod is provided with a first sliding opening communicated with the first sliding cavity;
each lifting rod is internally provided with a second sliding cavity, the top of each lifting rod is provided with a second sliding opening communicated with the second sliding cavity, the plurality of lifting rods are sequentially arranged along the length direction of the lifting rods, the first lifting rod is arranged in the first sliding cavity of the bottom rod in a sliding manner, the next lifting rod is arranged in the second sliding cavity of the previous lifting rod in a sliding manner, and the two adjacent lifting rods are in transmission connection;
the power part is in transmission connection with the first lifting rod and is used for driving the plurality of lifting rods to lift;
and the anti-falling device is connected with at least one lifting rod.
2. The lifting device according to claim 1, wherein the anti-falling device is connected with two adjacent lifting rods, a first anti-falling pulley is arranged on one side wall of the top of the lifting rod of the first lifting rod, a second anti-falling pulley is arranged on the opposite side wall of the bottom of the lifting rod of the second lifting rod, the anti-falling device is provided with a telescopic anti-falling cable, one end of the anti-falling cable is wound on the anti-falling device, the other end of the anti-falling cable is fixed on the side wall of the top of the first lifting rod opposite to the side wall provided with the first anti-falling pulley, and the anti-falling cable is sequentially wound on the first anti-falling pulley and the second anti-falling pulley;
when the descending speed of the lifting rod exceeds a threshold value, the anti-falling device tightens the anti-falling cable to enable the lifting rod to stop descending.
3. The lifting device according to claim 1, wherein the anti-falling device is connected to a first one of the lifting rods, a first anti-falling pulley is provided on one of the side walls of the top of the bottom rod, a second anti-falling pulley is provided on each of the opposite side walls of the bottom of the first one of the lifting rods, the anti-falling device is provided with a retractable anti-falling cable, one end of the anti-falling cable is wound around the anti-falling device, the other end of the anti-falling cable is fixed to the side wall of the top of the bottom rod opposite to the side wall provided with the first anti-falling pulley, and the anti-falling cable is wound around the first anti-falling pulley and the second anti-falling pulley in sequence;
when the descending speed of the lifting rod exceeds a threshold value, the anti-falling device tightens the anti-falling cable, so that the lifting rod stops descending.
4. The lifting device of claim 3, wherein the fall arrest device comprises a fall arrest runner connected to the bottom bar, a ratchet rotatable about an axis relative to the ratchet, a pawl coaxially disposed with the fall arrest runner, the ratchet having a plurality of teeth circumferentially disposed thereon, and an elastic member connecting the pawl and the fall arrest runner;
the anti-falling rope is wound on the anti-falling runner, and when the rotating speed of the anti-falling runner exceeds a threshold value, the pawl stretches out of the periphery of the anti-falling runner under the action of centrifugal force and is clamped on one tooth part of the ratchet wheel.
5. The lifting device as claimed in claim 3, wherein the power unit includes a hoisting structure, a first lifting pulley, two second lifting pulleys and a first lifting cable, the hoisting structure is fixedly connected to the bottom rod, the first lifting pulley is disposed on one side wall of the top of the bottom rod, the two second lifting pulleys are disposed on two opposite side walls of the bottom of the first lifting rod, the first lifting cable is wound around the hoisting structure, the hoisting structure is configured to extend and retract the first lifting cable, one end of the first lifting cable is connected to the hoisting structure, the other end of the first lifting cable is fixedly connected to the side wall of the top of the bottom rod opposite to the side wall where the first lifting pulley is disposed, and the first lifting cable is sequentially wound around the first lifting pulley and the second lifting pulley.
6. The lifting device as claimed in claim 5, wherein the power unit further comprises two third lifting pulleys, two fourth lifting pulleys and a second lifting cable, the two third lifting pulleys are respectively disposed at two sides of the top of the second lifting rod of any group of three lifting rods arranged in sequence, the two fourth lifting pulleys are respectively disposed at two sides of the bottom of the third lifting rod of any group of three lifting rods arranged in sequence, wherein one third lifting pulley and one fourth lifting pulley correspond to one group and are located at the same side;
the two ends of the second lifting cable are respectively fixed on any group of three of the lifting rods which are sequentially arranged, the first lifting rod is arranged on the two sides of the top of the lifting rod, the second lifting cable is sequentially wound on the third lifting pulley and the fourth lifting pulley which are positioned on the same side, and the fourth lifting pulley and the third lifting pulley which are positioned on the other side.
7. The lift mechanism of claim 6, wherein the two third lift pulleys on a first one of said lift rods of any one of said sets of three lift rods arranged in sequence are oriented in a direction perpendicular to the orientation of the two third lift pulleys on a second one of said lift rods of any one of said sets of three lift rods arranged in sequence.
8. The lifting device as claimed in claim 6, wherein the lifting device further comprises a top rod for arranging a lighting device, the top rod is slidably disposed in the second sliding cavity of the last lifting rod, a bottom of the top rod is provided with a fifth lifting pulley, and the second lifting cable of the last lifting rod is wound around the third lifting pulley and the fifth lifting pulley.
9. The lifting device as claimed in claim 8, wherein the top of the top bar is provided with a mounting plate for fixing a lighting device.
10. A lighting device comprising a lighting device and the lifting device of any one of claims 1 to 9, wherein the lighting device is mounted on top of the lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221979495.3U CN217816273U (en) | 2022-07-28 | 2022-07-28 | Lifting device and lighting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221979495.3U CN217816273U (en) | 2022-07-28 | 2022-07-28 | Lifting device and lighting equipment |
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| CN217816273U true CN217816273U (en) | 2022-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115398150A (en) * | 2022-07-28 | 2022-11-25 | 深圳亚锐光电科技有限公司 | Lifting device and lighting equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115398150A (en) * | 2022-07-28 | 2022-11-25 | 深圳亚锐光电科技有限公司 | Lifting device and lighting equipment |
| CN115398150B (en) * | 2022-07-28 | 2024-09-03 | 深圳亚锐光电科技有限公司 | Lifting device and lighting equipment |
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