CN211769968U

CN211769968U - Lifting control device

Info

Publication number: CN211769968U
Application number: CN202020217722.3U
Authority: CN
Inventors: 王小兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-10-27
Anticipated expiration: 2030-02-26

Abstract

The utility model discloses a lifting control device, include: the rope winding shaft and the rotating part rotate synchronously or the rope winding shaft and the lifting part synchronously lift and simultaneously perform rotary motion; one end of the lifting rope is wound on the rope winding shaft, the middle part of the lifting rope penetrates through the turning pulley, and the other end of the lifting rope is used for being connected with a controlled object. The lifting control device provided by the utility model gradually increases the length of the lifting rope wound on the rope winding shaft, the controlled object gradually rises, otherwise, the controlled object gradually lowers as the length of the lifting rope wound on the rope winding shaft gradually decreases; the long stroke control of the controlled object can be realized by winding the lifting rope, and the problem of large occupied space when the lifting control device in the prior art realizes the long stroke lifting control is solved.

Description

Lifting control device

Technical Field

The utility model relates to the technical field of mechanical structure, what especially relate to is a lifting control device.

Background

Lifting control device uses very generally, and applicable structure is various, for example the utility model patent of grant bulletin number CN206735703U discloses a four-wheel elevating gear, as shown in fig. 1, it includes bottom plate support body 16, locate four group's truckles 1 of bottom plate support body 16 bottom and locate guiding mechanism and drive mechanism between bottom plate support body 16 and truckle 1, above-mentioned guiding mechanism is including locating the guide post of every group truckle 1 mount pad top and locating the direction support 17 on bottom plate support body 16, this guide post pass bottom plate support body 16 and with the cooperation of leading about direction support 17. The transmission mechanism comprises a transverse gear transmission shaft 6, a longitudinal gear transmission shaft 13, gears and worm gear driving mechanisms, wherein the gears and the worm gear driving mechanisms are arranged at two ends of the transverse gear transmission shaft 6 and the longitudinal gear transmission shaft 13, the transverse gear transmission shaft 6 and the longitudinal gear transmission shaft 13 are both arranged on the bottom plate frame body 16, lifting racks meshed with the gears at two ends of the transverse gear transmission shaft 6 and the longitudinal gear transmission shaft 13 are arranged on four groups of guide posts, the four groups of guide posts are in synchronous transmission connection with the longitudinal gear transmission shaft 13 through the transverse gear transmission shaft 6, and the worm gear driving mechanisms are arranged on the transverse gear transmission shaft 6 or the longitudinal gear transmission shaft 13 and are used for driving the bottom plate frame body 16 to move up and down on.

For another example, the utility model with the publication number of CN201952162U discloses a lifting device and a packing box with the same, as shown in fig. 2, wherein the lifting device comprises: the method comprises the following steps: the bottom frame 10, the top frame 50, and the scissors-shaped mechanism 30 arranged between the bottom frame 10 and the top frame 50, a first bar-shaped groove 11 is arranged at one side end of the bottom frame 10, a second bar-shaped groove 51 is arranged at the same side end of the top frame 50, a first hinge hole 12 is arranged at the other side end of the bottom frame 10, a second hinge hole 52 is arranged at the same side end of the top frame 50, the scissors-shaped mechanism 30 is connected to the bottom frame 10 through the first bar-shaped groove 11 and the first hinge hole 12, and is connected to the top frame 50 through the second bar-shaped groove 51 and the second hinge hole 52.

The four-wheel lifting device directly utilizes the gear rack to realize lifting, and is usually used for realizing lifting control of short stroke, and the lifting control of long stroke needs to double the size of the gear rack to ensure structural strength, so that the occupied space is large; the lifting device realizes lifting control through the scissors-shaped mechanism, and the scissors-shaped mechanism has the problem of large occupied space; it can be said that most of lifting control devices in the prior art have the problem of large occupied space when realizing long-stroke lifting control.

It can be seen that the prior art is still in need of improvement and development.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned prior art not enough, the utility model aims at providing a lifting control device aims at improving the great problem of occupation space when lifting control device among the prior art realizes the lifting control of long stroke.

The technical scheme of the utility model as follows:

a lift control device, comprising: the rope winding shaft is connected with the rotating piece, the driving source is used for driving the rope winding shaft to rotate, and the rope winding shaft is used for driving the lifting piece to lift through the rotating piece; alternatively, it comprises: the rope winding device comprises a driving source, a rotating piece, a rope winding shaft, a lifting piece, a turning pulley and a lifting rope, wherein the driving source, the rotating piece and the lifting piece are sequentially connected, the driving source is used for driving the rotating piece to rotate, and the rotating piece is used for driving the lifting piece to lift; the rope winding shaft is driven by a rotating piece to rotate, or the rope winding shaft is connected with the lifting piece and performs rotating motion while synchronously lifting with the lifting piece; one end of the lifting rope is wound on the rope winding shaft, the middle part of the lifting rope penetrates through the turning pulley, and the other end of the lifting rope is used for being connected with a controlled object.

Compared with the prior art, the utility model provides a lifting control device, include: the rope winding device comprises a driving source, a rotating piece, a rope winding shaft, a lifting piece, a turning pulley and a lifting rope, wherein the driving source, the rotating piece and the lifting piece are sequentially connected, the driving source is used for driving the rotating piece to rotate, and the rotating piece is used for driving the lifting piece to lift; the rope winding shaft is connected with the rotating piece and rotates synchronously with the rotating piece, or the rope winding shaft is connected with the lifting piece and performs rotary motion while lifting synchronously with the lifting piece; one end of the lifting rope is wound on the rope winding shaft, the middle part of the lifting rope penetrates through the turning pulley, and the other end of the lifting rope is used for being connected with a controlled object. The lifting control device provided by the utility model can utilize the rotating part, the lifting part, the rope winding shaft and the turning pulley to enable the lifting rope to be wound on the rope winding shaft or to be released from the rope winding shaft, the controlled object will gradually rise along with the gradual increase of the length of the lifting rope wound on the rope winding shaft, otherwise, the controlled object will gradually fall along with the gradual decrease of the length of the lifting rope wound on the rope winding shaft; the long stroke control of the controlled object can be realized by winding the lifting rope, and the problem of large occupied space when the lifting control device in the prior art realizes the long stroke lifting control is solved.

Drawings

Fig. 1 is a schematic structural view of a four-wheel lifting device in the prior art.

Fig. 2 is a schematic structural diagram of a lifting device in the prior art.

Fig. 3 is a schematic structural diagram of a lift control device according to an embodiment of the present invention.

Fig. 4a is a top view of an elevation control apparatus according to an embodiment of the present invention.

Fig. 4b is a schematic structural diagram of a worm used in the first embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a direction-changing pulley used in an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a spacer according to an embodiment of the present invention.

Fig. 7 is a schematic diagram illustrating a positional relationship between a first rotary support and a hollow support tube according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a second lift control device according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a rack used in the second embodiment of the present invention.

Fig. 10 is a schematic structural view of a rope winding shaft and a worm used in the third embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a three-lift control device according to an embodiment of the present invention.

Fig. 12 is a schematic structural view of a hollow support tube and a rotating handle according to a fourth embodiment of the present invention.

Fig. 13 is a schematic structural diagram of a four-lift control device according to an embodiment of the present invention.

Fig. 14a is a schematic structural diagram of a five-lift control device according to an embodiment of the present invention.

Fig. 14b is a plan view of a five-lift control device according to an embodiment of the present invention.

Fig. 15 is a schematic structural view of a rack used in the fifth embodiment of the present invention.

Fig. 16 is a schematic structural view of a diamond-shaped rotary support seat used in the fifth embodiment of the present invention.

Fig. 17 is a schematic structural diagram of a six-lift control device according to an embodiment of the present invention.

Fig. 18 is a schematic structural view of a C-shaped tube used in the sixth embodiment of the present invention.

Fig. 19 is a schematic structural view of an isolation connecting sheet used in the sixth embodiment of the present invention.

Fig. 20 is a schematic structural view of a T-shaped support base according to a sixth embodiment of the present invention.

Fig. 21 is a cross-sectional view of a seventh lift control device according to an embodiment of the present invention.

Fig. 22 is a schematic structural diagram of a seventh lifting control device according to an embodiment of the present invention.

Fig. 23 is a schematic structural view of a rope-winding shaft transmission rod used in the seventh embodiment of the present invention.

Fig. 24 is a schematic structural view of a triangular guide limiting strip used in the seventh embodiment of the present invention.

Fig. 25 is a schematic structural diagram of an eight lift control device according to an embodiment of the present invention.

Fig. 26a is a cross-sectional view of a lift sleeve according to an eighth embodiment of the present invention.

Fig. 26b is a schematic structural view of a rope-winding shaft transmission rod used in the eighth embodiment of the present invention.

Fig. 27 is a schematic structural diagram of a nine-stage lift control apparatus according to an embodiment of the present invention.

Fig. 28 is a schematic structural view of a rope-winding shaft transmission rod used in the ninth embodiment of the present invention.

Fig. 29 is a schematic view of a connection relationship between a nut and a sleeve according to an embodiment of the present invention.

Fig. 30 is a sectional view showing a connection relationship between a nut and a sleeve according to the ninth embodiment of the present invention.

Fig. 31 is a schematic structural view of a tenth elevation control device according to an embodiment of the present invention.

Fig. 32 is a schematic structural diagram of an eleventh elevation control apparatus according to an embodiment of the present invention.

Fig. 33 is a schematic structural view of a rack used in the eleventh embodiment of the present invention.

Fig. 34 is a schematic view of a positional relationship between an eleventh follower rotary rod and a worm according to an embodiment of the present invention.

Fig. 35 is a schematic structural diagram of a twelve lifting control device according to an embodiment of the present invention.

Fig. 36a is a schematic structural diagram of a thirteenth lift control device according to the present invention.

Fig. 36b is a schematic structural view of a C-shaped sleeve used in the thirteenth embodiment of the present invention.

Fig. 37 is a schematic structural diagram of a fourteenth lifting control device according to an embodiment of the present invention.

Fig. 38 is a schematic view of a connection ring and a sleeve according to a fourteenth embodiment of the present invention.

Fig. 39 is a cross-sectional view showing a connection relationship between a connection ring and a connector shaped like a Chinese character 'bei' according to the fourteenth embodiment of the present invention.

Fig. 40 is a cross-sectional view showing a connection relationship among the connecting member in the shape of a letter "dogbone", the connecting ring, the sleeve, the first ball, and the second ball according to the fifteenth embodiment of the present invention.

Fig. 41 is a schematic structural diagram of a sixteen lift control apparatus according to an embodiment of the present invention.

Fig. 42 is a schematic view of a positional relationship between the sixteen follow-up rotating rods and the screw rods according to the embodiment of the present invention.

Fig. 43 is a schematic structural view of a seventeen lead screw, a nut, a hollow sleeve and a follow-up rotating rod according to an embodiment of the present invention.

Fig. 44 is a schematic structural diagram of an eighteen elevation control device according to an embodiment of the present invention.

Fig. 45 is a sectional view of an eighteen elevation control device according to an embodiment of the present invention.

Fig. 46 is a schematic structural diagram of a nineteenth lifting control device according to an embodiment of the present invention.

Fig. 47 is a schematic structural view of a twenty-lift control device according to an embodiment of the present invention.

Fig. 48a is a schematic structural diagram of a twenty-one lift control device according to an embodiment of the present invention.

Fig. 48b is a cross-sectional view of a twenty-one lift control device according to an embodiment of the present invention.

Fig. 49 is a schematic structural diagram of a twenty-two lift control device according to an embodiment of the present invention.

Fig. 50 is a schematic structural diagram of a twenty-three lift control device according to an embodiment of the present invention.

Fig. 51a is a schematic structural view of a twenty-three lead screw, a nut and a hollow sleeve according to an embodiment of the present invention.

Fig. 51b is a cross-sectional view of a hollow sleeve used in twenty-three embodiments of the present invention.

Detailed Description

The utility model provides a lifting control device, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and lifts the example the utility model discloses further detailed description. It should be understood that the specific embodiments are presented herein for purposes of illustration only and are not intended to limit the invention.

The utility model provides a lifting control device, which is used for controlling the lifting of some objects or parts; the method comprises the following steps: the rope winding device comprises a driving source, a rotating piece, a rope winding shaft, a lifting piece, a turning pulley and a lifting rope, wherein the driving source, the rotating piece and the lifting piece are sequentially connected, the driving source is used for driving the rotating piece to rotate, and the rotating piece is used for driving the lifting piece to lift; the rope winding shaft is connected with the rotating piece and rotates synchronously with the rotating piece, or the rope winding shaft is connected with the lifting piece and performs rotary motion while lifting synchronously with the lifting piece; one end of the lifting rope is wound on the rope winding shaft, the middle part of the lifting rope penetrates through the turning pulley, and the other end of the lifting rope is used for being connected with a controlled object.

When the rope winding shaft is connected with the rotating part, the rope winding shaft rotates under the driving of the rotating part, and the lifting part lifts under the driving of the rotating part (the rotating part and the lifting part disclosed by the utility model are matched with each other, namely the rotating part is a worm, the lifting part is a rack, a C-shaped nut barrel or a nut barrel, the rotating part is a screw rod or a screw rod, the lifting part is a nut), and the turning pulley is fixed on the lifting part. Along with the rotation of the rotating piece and the rope winding shaft and the lifting of the lifting piece and the direction-changing pulley, the lifting rope is continuously wound on or released from the rope winding shaft, so that the controlled object is gradually lifted or lowered.

When the rope winding shaft is connected with the lifting piece, the lifting control device further comprises a fixed threaded rod or a follow-up rotating rod. When the fixed threaded rod is arranged, threads are arranged in a through hole in the middle of the rope winding shaft, the rope winding shaft is connected with the lifting piece and can synchronously lift along with the lifting piece, the rope winding shaft simultaneously rotates around the fixed threaded rod, and the direction-changing pulley is fixed; because the fixed threaded rod is fixed, the rope winding shaft rotates while ascending, and the lifting rope is continuously wound on or released from the rope winding shaft, so that the controlled object is gradually lifted or lowered. When the follow-up rotating rod is arranged, the follow-up rotating rod is fixedly connected with the rotating piece or integrally formed; the rope winding shaft is rotatably connected with the lifting piece, the rope winding shaft synchronously rotates with the follow-up rotating rod and ascends and descends along the follow-up rotating rod while the lifting piece ascends and descends, and the direction-changing pulley is fixed; the rope winding shaft rotates while being lifted, and the lifting rope is continuously wound on or released from the rope winding shaft, so that the controlled object is gradually lifted or lowered.

The lifting control device provided by the utility model can be applied to lifting control of various mechanical equipment, other instruments or other objects, such as lifting beds, the existing beds comprise high-low beds, elevated beds, sling lifting beds, counterweight lifting beds and the like, the occupied areas of common beds and high-low beds are large, the indoor space is wasted, the elevated beds need to climb up and down, the labor is wasted, the operation is inconvenient and unsafe, the overhead bed is limited by the height of a ceiling, the upper space is limited, and the oppression feeling is easily caused because the overhead bed is too close to the ceiling; the lower space is not high enough, and the head has to be bent over and lowered, and the head is easy to touch, so that the device is inconvenient and uncomfortable. Both of these beds waste a large amount of space that could be effectively utilized. The sling lifting bed realizes the lifting function by winding a steel wire rope on a rotating shaft arranged on the ceiling, the steel wire rope is exposed outside, and the rotating shaft is arranged on the ceiling by using screws, so that the sling lifting bed is neither beautiful nor safe, and is very troublesome to install. The counterweight lifting bed needs to be provided with a heavy counterweight device, and the counterweight block needs to occupy extra space. For safety, prevent to take place danger, need professional installation, the installation degree of difficulty is great, and the expense is also higher.

If use the utility model provides a lift control device then can set up lift control device in the bedstead pillar, keeps the outward appearance succinctly pleasing to the eye, when not occupying extra space, realizes the function of lift bed, is the perfect adaptation of form and function. The multifunctional small-dwelling house solves the problems that modern small-dwelling houses, student dormitories and apartment houses are small in area and narrow in space, and ordinary bedding occupies a large amount of space and cannot efficiently utilize the limited space.

Be provided with the utility model provides a lifting control device's lift bed can make the bed rise to suitable height daytime, places sofa, desk computer etc. on vacating large tracts of land space, becomes the bedroom living room, study, office, body-building exercise place even. The height can be lowered to a proper height at night and the patient can be changed back to the bedroom. The space diversification can be realized, the limited space is efficiently utilized, and the life quality and the level of people are improved. Because the lifting device is embedded in the bedstead, the appearance is kept simple and attractive, no extra space is occupied, the installation process is simplified, the installation and use difficulty is reduced, and the installation and the operation are simpler, more convenient and more feasible.

It is understood that the number of the lifting rope and the direction-changing pulley is not limited by the present invention, and the following embodiments are only illustrative of the basic principle of the present invention, and are not intended to limit the scope of the present invention.

Taking a worm as a rotating part and a rack as a lifting part as an example, the relationship among the worm lead, the lifting proportion of the rack and the winding density of the lifting rope is described as follows: the rotating part is a worm, the lead is H, the thread pitch is A, the number of heads is z, and z is more than or equal to 1 (single head or multiple head is available); the lifting piece is a rack, the tooth pitch is L, the number of the racks in a single system is B which is more than or equal to 1 (1, 2, 3 or 4), the tooth pitch L of the rack is the same as the pitch A of the worm, and L is equal to A (each rack is provided with a pulley); the diameter of the lifting rope is D, the number of the lifting ropes is B, B is more than or equal to 1 (1, 2, 3 or 4), the number B of the lifting ropes is the same as the number B of the racks, and B is equal to B (the lifting ropes pass through the pulleys on the corresponding racks, and one lifting rope corresponds to one pulley).

The following conditions are met, namely the tight and uniform winding of the lifting rope can be realized:

worm lead H is not less than lifting rope diameter Dx lifting rope number b (Condition 1)

The rack pitch L is the worm pitch a is the worm lead H/the number z of worm heads (condition 2).

Example one

As shown in fig. 3 to 7, in the present embodiment, the driving source is a long tubular motor 111 (shown in fig. 3), the rotating member is a worm 112 (shown in fig. 4 b), the lifting member is a rack 113 (shown in fig. 3), the outer edge of the lower end of the rope winding shaft 114 is provided with a spacer 119, the spacer 119 is provided with a rope threading hole 119a (shown in fig. 6), one end of the lifting rope 116 passes through the rope threading hole 119a and then is wound around the rope winding shaft 114, the middle portion passes through the direction-changing pulley 115 (shown in fig. 3 and 5) and then extends upward, and the other end is used for connecting to the controlled object.

When the controlled object is driven to ascend, the long tubular motor 111 drives the worm 112 to rotate, the worm 112 drives the rack 113 to ascend through the meshing of the worm 112 and the rack 113, meanwhile, the worm 112 drives the spacer 119 and the rope winding shaft 114 to rotate, and as the two direction-changing pulleys 115 are respectively fixed at the upper ends of the two racks 113 (through riveting or welding and the like), the direction-changing pulleys 115 synchronously ascend along with the rack 113, and along with the ascending of the direction-changing pulleys 115 and the rotation of the rope winding shaft 114, the lifting rope 116 (preferably a steel wire rope) is gradually wound on the rope winding shaft 114, so that the controlled object gradually ascends; otherwise, the controlled object will gradually descend.

In a further preferred embodiment, the outer edge of the rope winding shaft 114 is sleeved with a first rotation support 117 (shown in fig. 3 and 7), the outer edge of the worm 112 is sleeved with a second rotation support 118 (shown in fig. 3), and the first rotation support 117 and the second rotation support 118 are fixed in various ways, such as being fixedly connected with the housing of the long tubular motor 111, for example, in the case of providing the hollow support tube 110 (shown in fig. 7), the hollow support tube 110 is relatively fixed to the hollow support tube 110 (shown in fig. 4 a) by a screw LD (shown in fig. 7) penetrating through the hollow support tube 110; or in other ways, the present invention is not limited to this embodiment.

Preferably, the lifting control device further includes a hollow support tube 110, and the driving source, the rotating member, the rope winding shaft 114, the lifting member and the direction changing pulley 115 are disposed in the hollow support tube 110; or the lifting control device is used for being arranged in a hollow supporting pipe of mechanical equipment.

As shown in fig. 4a, the inner wall of the hollow support tube 110 is provided with two guide bars 110a (the specific structure of the guide bars is shown in fig. 4 a), a guide groove is formed between the two guide bars 110a, and the shape of the guide groove is adapted to the shape of the rack 113.

In order to maximize the effective radius of the direction-changing pulley 115 in a limited space, the sliding portion of the direction-changing pulley needs to be slightly shifted to the diagonal direction of the hollow support tube, so that a certain angle is generated between the direction-changing pulley and the lifting member, and therefore the shape of the portion of the lifting member where the direction-changing pulley is installed needs to be designed correspondingly.

As shown in fig. 5, the direction-changing pulley 115 preferably includes a connecting portion 115a and a sliding portion 115b, the connecting portion 115a is used for connecting the lifting member, the sliding portion 115b includes a fan-shaped sliding base, and at least one rolling wheel 115c (preferably, a plurality of rolling wheels arranged in a circumferential array, as shown in fig. 5, so as to use a fan-shaped pulley instead of a conventional large pulley) is disposed on the sliding base. The sliding base is arranged in the shape of 1/4 rounded sectors in order to maximize the effective radius of the diverting pulley in a limited space. In the same space, the fan-shaped sliding base enables the effective radius of the direction-changing pulley to be large, so that the strain of the lifting rope can be reduced to the minimum.

As shown in fig. 6, the spacer 119 is provided with a rope threading hole 119a, and the lifting rope 116 is wound around the rope winding shaft 114 after passing through the rope threading hole 119 a; further, the rope winding shaft 114 is provided with a connecting protrusion 136 at the lower end of the spacer 119, the connecting protrusion is provided with a connecting groove 136b, and the shape of the connecting groove 136b is adapted to the upper end protrusion (as shown in fig. 4b, not shown) of the worm 112, and is preferably rectangular, or other non-circular shapes are also possible. (the rope winding shaft and the worm can be fixedly connected and can also be integrally formed). The also available spacing block of spacer 119 replaces to wiring axle both ends all can set up spacer or spacing block, the lift rope can be fixed on the spacer or the spacing block of the arbitrary one end of wiring axle, and begin the winding from this spacer or spacing block, and correspondingly, the fixed position of the diversion pulley of pulling the lift rope, orientation and direction of pull also need adjust according to actual conditions (the epaxial spacer of wiring or the mode that sets up of spacing block in other embodiments is the same reason, the utility model discloses will no longer describe repeatedly).

The working principle of the lifting control device in the embodiment is as follows: when the driving source 111 rotates counterclockwise, the driving source 111 drives the worm 112 to rotate counterclockwise, the worm 112 drives the rope winding shaft 114 to rotate synchronously with the rope winding shaft through the matching relationship between the protrusion arranged at the upper end and the connecting groove 136b, because the worm 112 only rotates and the rack 113 in threaded fit with the worm 112 is limited by the guide strip 110a and can only ascend and descend, therefore, when the worm 112 rotates counterclockwise, the rack 113 ascends along the axis direction of the rope winding shaft 114, because the direction-changing pulley 115 is fixedly connected to the rack 113, the lifting rope 116 is wound on the rope winding shaft 114, the controlled object connected to the other end of the lifting rope ascends continuously, the direction-changing pulley 115 and the rack 113 continue to ascend, but the top end of the direction-changing pulley cannot touch the first rotating support seat 117, otherwise, mutual collision can occur to cause part damage (the rope winding shaft stroke limitation in other embodiments is the same. When an object to be controlled descends, the driving source 111 rotates clockwise, and drives the worm 112 and the rope winding shaft to rotate clockwise, and similarly, the rack 113 drives the direction-changing pulley 115 to descend along the axial direction of the rope winding shaft 114, so that the lifting rope 116 is continuously released from the rope winding shaft 114, the object to be controlled continuously descends, and the direction-changing pulley 115 cannot touch or cross the spacer 119, otherwise, mutual collision occurs to cause damage to parts. For those skilled in the art, the relationship between the rotation direction of the driving source and the winding and releasing of the lifting rope is clear and can be adjusted adaptively according to the structure disclosed in the embodiments of the present invention, and therefore the following text utility model will not be described again.

Example two

As shown in fig. 8 and 9, the second embodiment is substantially the same as the first embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: a first guide groove 113a (as shown in fig. 8 and 9) is formed on a side of the rack 113 facing the hollow support tube 110 (the same as the first embodiment, not shown in the figure), and the hollow support tube is provided with a first guide protrusion adapted to the first guide groove (the matching manner between the guide groove and the guide protrusion is the prior art, and will not be described again and shown in the figure additionally).

It should be noted that the spacers in all the embodiments can be replaced by spacer pads, and the difference between them is that: the spacer has only one perforated disc; the isolating gasket is provided with two round sheets, wherein one round sheet is provided with a hole, the other round sheet is not provided with a hole, the function of the round sheet with the hole is the same as that of the isolating sheet (both the round sheets are used for fixing the lifting rope), and the round sheet without the hole is used for isolating the lifting rope so as to prevent the lifting rope from rubbing with other parts or falling off from the rope winding shaft. In addition, both ends of the rope winding shaft 114a can be provided with a spacer or a spacer (or one end away from the fixed end of the lifting rope can also be independently provided with a non-perforated disc), and the spacer, the spacer or the non-perforated disc away from the fixed end of the lifting rope or the non-perforated disc independently used has the function of preventing the lifting rope from falling off.

EXAMPLE III

As shown in fig. 10 and fig. 11, the third embodiment is substantially the same as the first embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. in the third embodiment, the spacer 119 is not provided, but a through hole 114a is formed in the rope winding shaft 114 (as shown in fig. 10 and 11); 2. a first guide groove 113a (as shown in fig. 9) is formed on a side of the rack 113 facing the hollow support tube 110 (the same as the first embodiment, not shown in the figure), and a first guide protrusion adapted to the first guide groove is formed on the hollow support tube (the matching manner between the guide groove and the guide protrusion is the prior art, and will not be described and additionally shown in the figure).

It is understood that the first guide groove 113a is not necessarily required, and the rack 113 and the hollow support tube may have the same shape as in the first embodiment. Preferably, the rope winding shaft 114 and the worm gear 112 may be integrally formed, as shown in fig. 10, or may be fixedly connected together.

Example four

As shown in fig. 12 and 13, the fourth embodiment is substantially the same as the third embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. a manual driving mechanism is added, comprising: a crank 120, a drive worm 121 and a drive worm gear 122, as shown in fig. 13 (other manual driving mechanisms are also applicable, and the present invention is not limited thereto). 2. The hollow support tube 110 '(shown in fig. 12) is bent outwardly to form a receiving cavity (not shown in fig. 13) at a position adapted to the driving worm 121, and it is understood that the size of the driving worm wheel 122 can be made smaller without providing the receiving cavity, or the entire hollow support tube 110' can be made larger, etc. as an alternative. 3. The long tubular motor 111, the worm 112 and the rope winding shaft 114 in the third embodiment are sequentially arranged from bottom to top, and the long tubular motor 111, the worm 112 and the rope winding shaft 114 in the fourth embodiment are sequentially arranged from top to bottom; the difference is not only the difference in the positions of the parts, but also the difference in effect: under the condition of a certain transverse space, the diameter of the rope winding shaft 114 in the third embodiment is smaller, the diameter of the rope winding shaft 114 in the fourth embodiment is larger (the diameter of the rope winding shaft can be larger because the lifting rope 116 wound on the rope winding shaft is clamped between the rope winding shaft 114 and the lifting piece 113 in the third embodiment, and the lifting rope is not positioned between the rope winding shaft and the lifting piece 113 in the fourth embodiment), and the lifting range of the lifting control device in the fourth embodiment is larger; 4. the relative position and the direction of the connection of the direction-changing pulley 115 and the lifting member 113 are different, the direction-changing pulley of the third embodiment is fixed at the upper end of the lifting member, and the direction-changing pulley of the fourth embodiment is fixed at the lower end of the lifting member.

It can be understood that 1 of the above differences can be used alone (i.e., on the basis of the third embodiment, only the manual driving mechanism is added, the accommodating cavity is not bent on the hollow supporting tube, and the arrangement direction of the components is not changed), and similarly, 3 of the above differences can also be used alone (i.e., on the basis of the third embodiment, only the arrangement direction of the components is changed, and the manual driving mechanism is not added).

EXAMPLE five

As shown in fig. 14a to fig. 16, the fifth embodiment is substantially the same as the third embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. the lifting piece is a triangular rack, and two lifting pieces are arranged, namely a first triangular rack 123 and a second triangular rack 124 (shown in fig. 14a and fig. 15); 2. the two triangular racks are both provided with a second guide groove 123b and a guide groove 123c, and the inner wall of the hollow support tube 110 is provided with guide protrusions 110a adapted to the two guide grooves (as shown in fig. 14b, one of the guide protrusions is shielded by the first support seat 117); 3. the second rotary supporting seat is a diamond-shaped rotary supporting seat 125 (as shown in fig. 14a and 16), a first side surface 125a of the diamond-shaped rotary supporting seat 125 is flush with a first side surface 123a of the first triangular rack 123, and a second side surface 125b of the diamond-shaped rotary supporting seat 125 is flush with a first side surface 124a of the second triangular rack 124.

It is understood that the embodiment may also be based on other embodiments, such as the first embodiment, the second embodiment or the fourth embodiment, the above differences may also be selectively used, and the variation schemes are many, which is not described herein again.

EXAMPLE six

As shown in fig. 17 to fig. 20, the sixth embodiment is substantially the same as the first embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. the lifting piece is a C-shaped cylinder 126 (shown in fig. 17 and 18), and the middle part of the C-shaped cylinder 126 is provided with a thread matched with the worm; 2. an open groove 126a is formed in one side of the C-shaped cylinder 126, the annular parts of the two supporting seats 129 are surrounded in the C-shaped cylinder 126, the open groove 126a is just clamped at the necks of the two supporting seats 129, the cross section of the open groove 126a is matched with the necks of the supporting seats 129, and the necks of the supporting seats 129 play a role in guiding the guide protrusions of the C-shaped cylinder 126; 3. the upper end of the C-shaped cylinder 126 is provided with a fixed bulge 126b for fixing a direction-changing pulley; 4. the second rotary support seat is a T-shaped support seat 129 (as shown in fig. 17 and 20); 5. two T-shaped supporting seats 129 are arranged and are respectively sleeved at two ends of the worm; 6. the lower end of the spacer 119 is provided with a connecting block 127 (as shown in fig. 17 and 19, for the reason of view, fig. 19 does not show and mark the rope winding shaft, the connecting block 127 can be integrally formed with the spacer 119, can be integrally formed with the rope winding shaft, or can be fixedly connected with the rope winding shaft and the rope winding shaft), the lower end of the connecting block 127 extends to form a connecting protrusion 127b, and the shape of the connecting protrusion 127b is adapted to the groove at the upper end of the worm, and is preferably rectangular, or other non-circular shapes are also possible. Preferably, the spacers 119 are provided in two, and the two spacers 119 are respectively provided at both ends of the rope winding shaft, wherein the spacer at the end facing away from the driving source has an effect of preventing the lifting rope from coming off.

It is understood that the present invention can selectively use the above differences, or selectively apply the above differences to other embodiments, such as embodiment four, embodiment five, etc.; the utility model discloses no longer give unnecessary details one by one to this.

EXAMPLE seven

As shown in fig. 21 to 24, the seventh embodiment is substantially the same as the first embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. the driving source is a rotating motor 130 (shown in fig. 21); 2. the rotating member, the rope winding shaft and the spacer are integrally formed to be a rope winding shaft transmission rod 131 (as shown in fig. 21 and 23); 3. the rope winding shaft transmission rod 131 is arranged from top to bottom in sequence corresponding to the rotating piece, the rope winding shaft and the isolating piece; 4. the lifting piece is a threaded cylinder 132 (shown in fig. 21 and 22); 5. the lifting control device in the embodiment further comprises a guide limiting strip, a second guide protrusion is arranged on one side, facing the guide limiting strip, of the lifting piece, and a second guide groove matched with the second guide protrusion is formed in the guide limiting strip; 6. the guiding and limiting strips are triangular guiding and limiting strips 133 (as shown in fig. 22 and 24).

It is understood that the present invention can selectively use the above differences, or selectively apply the above differences to other embodiments, such as providing the lifting member of the first embodiment as a threaded cylinder, etc.; the utility model discloses no longer give unnecessary details one by one to this.

In this embodiment, both ends of the rope winding shaft can be provided with the isolation sheets or the penetrating holes, and only when the lower end of the rope winding shaft is arranged, the diameter of the rope winding shaft can be larger in the same space so as to increase the effective lifting distance of the lifting device. When the isolating sheet or the penetrating hole is arranged at the upper end of the rope winding shaft, the lifting rope starts to wind from the upper end of the rope winding shaft, and at the moment, the direction of the direction-changing pulley and the traction direction are correspondingly adjusted.

Example eight

As shown in fig. 25 and fig. 26b, the eighth embodiment is substantially the same as the seventh embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. a belt transmission mechanism 134 (shown in fig. 25) is arranged between the rotating motor 130 'and the rope winding shaft transmission rod 131' (shown in fig. 26 b) in the embodiment; 2. the rope winding shaft transmission rod 131 'in the present embodiment is not identical in structure to the rope winding shaft transmission rod 131 in the seventh embodiment, please refer to fig. 26b and fig. 23, respectively, wherein the thread portion of the rope winding shaft transmission rod 131' in the present embodiment is a screw, and the thread portion of the rope winding shaft transmission rod 131 in the seventh embodiment is a worm. 3. The lifting member adapted to the screw is a lifting sleeve 182, and the lifting sleeve 182 has only one section of screw thread adapted to the screw (as shown in fig. 26 a), the screw thread is arranged at the upper end of the lifting member, and the lower end is a sleeve with an inner diameter slightly larger than the rope winding shaft.

It is understood that the present invention can selectively use the above differences (i.e. not all of them are arranged in the lift control device, only some of them are arranged differently, and the differences of other embodiments are the same), or selectively apply the above differences to other embodiments, for example, the long cylindrical motor in other embodiments can be replaced by the rotating motor, and also a belt transmission mechanism can be added between the rotating motor and the rotating member.

Example nine

As shown in fig. 27 to fig. 30, the ninth embodiment is substantially the same as the seventh embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. the structure of the rope winding shaft transmission rod 131 "in the present embodiment is not exactly the same as that of the rope winding shaft transmission rod 131 in the seventh embodiment, please refer to fig. 28 and 23, respectively, wherein the thread portion of the rope winding shaft transmission rod 131" in the present embodiment is a screw rod, and the thread portion of the rope winding shaft transmission rod 131 in the seventh embodiment is a screw rod; 2. the lifting piece in the embodiment is a nut 135 matched with the screw rod; 3. a sleeve 136 is provided below the nut 135, and a sleeve guide protrusion 136a (shown in fig. 29 and 30) is provided on a side surface of the sleeve 136; 4. the sleeve 136 is provided at a lower end thereof with two welding marks 136b (see fig. 29 and 30), and the direction-changing pulley is welded and fixed between two adjacent welding marks 136 b.

It can be understood that the utility model discloses can the selective use above-mentioned difference, perhaps apply to other embodiments with above-mentioned difference selectivity, the utility model discloses no longer describe to this one by one.

Example ten

As shown in fig. 31, the tenth embodiment is substantially the same as the ninth embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: a first bearing 137 (as shown in fig. 31) is disposed between the rope winding shaft 114 and the first rotation support (for clarity, the first bearing 137 is hidden in fig. 31), and/or a second bearing (not shown) is disposed between the rotor and the second rotation support 118. It is understood that those skilled in the art can selectively apply the above differences to other embodiments or equivalent alternatives not described in the present invention without creative efforts, and the present invention is not described in detail herein.

EXAMPLE eleven

As shown in fig. 32 to 34, the configuration of parts in the eleventh embodiment is the same as that in the third embodiment, (the structure and principle of the lower half controlling the lifting of the lifter are similar to those in the second embodiment), such as: the driving source is a long cylindrical motor 111, the rotating member is a worm 112, the lifting member is a rack 113, and a first guide groove 113a (shown in fig. 9, 32 and 33) is formed on the side away from the worm, the shape of the direction-changing pulley, a first rotation support seat 117 and a second rotation support seat 118 (not shown in fig. 32), and the like; the difference between the two embodiments is that: 1. the rotating member is separated from the rope winding shaft, and the worm 112 is connected with the rope winding shaft 114 through a follow-up rotating rod 138, (a flat key is arranged on the follow-up rotating rod 138, a sliding groove matched with the follow-up rotating rod flat key is arranged in a through hole in the rope winding shaft 114) and drives the rope winding shaft 114 to rotate synchronously with the rope winding shaft, and further, the follow-up rotating rod 138 in the embodiment is integrally formed with the worm 112 (as shown in fig. 34); 2. a sliding sheet 184 is arranged on the outer edge of the lower end of the rope winding shaft 114, a connecting duck bill 113b (shown in fig. 32 and 33) is arranged at the upper end of the rack 113, and the connecting duck bill 113b is connected with the sliding sheet 184 and drives the rope winding shaft 114 to lift synchronously with the sliding sheet 184; 3. the direction-changing pulley is fixedly fixed on the inner wall of the hollow supporting tube through the wedge-shaped pad 183, in order to maximize the effective radius of the direction-changing pulley in a limited space, the sliding part of the direction-changing pulley needs to slightly deviate towards the diagonal direction of the hollow supporting tube, so that a certain angle is generated between the direction-changing pulley and the inner wall of the hollow supporting tube, and therefore the wedge-shaped pad 183 (shown in figure 32) is arranged to be installed in a matched mode, and riveting or welding can be carried out.

In the embodiment, the long cylindrical motor 111 drives the worm 112 to rotate, the worm 112 drives the follow-up rotating rod 138 to rotate synchronously with the worm 112, and then the follow-up rotating rod 138 drives the rope winding shaft 114 to rotate synchronously with the rope winding shaft; meanwhile, the worm 112 drives the rack 113 to lift, and the rack 113 drives the rope winding shaft 114 to lift synchronously with the rope winding shaft; namely, the rope winding shaft 114 is driven by the worm 112 and the rack 113 to rotate and lift at the same time; since the direction-changing pulley is fixed, the lifting rope 116 changed in direction by the direction-changing pulley is wound around the rope winding shaft 114 or released from the rope winding shaft 114 as the rope winding shaft 114 rotates, and finally the controlled object is lifted.

Example twelve

As shown in fig. 35, the structure and principle of the twelfth embodiment are substantially the same as those of the eleventh embodiment, (the structure and principle of the lower half part controlling the lifting of the lifting element are similar to those of the fifth embodiment) the same components are not shown and described again, and the difference between the two embodiments is: 1. the lifting member is a triangular rack 139, and both side surfaces thereof are provided with guide grooves 139a (as shown in fig. 35); 2. the second rotary support 125 is a diamond-shaped rotary support (see fig. 35, and fig. 14 and 16 in the fifth embodiment).

EXAMPLE thirteen

As shown in fig. 36a and 36b, the structure and principle of the thirteenth embodiment are substantially the same as those of the eleventh embodiment (the structure and principle of the lower half part controlling the lifting of the lifting element are similar to those of the sixth embodiment), the present invention is not labeled and described again, and the difference between the two embodiments is that: the elevating member is a C-shaped duckbill barrel 140 (as shown in fig. 36a), a retaining protrusion 140a is disposed at the upper end of the C-shaped duckbill barrel 140, a duckbill groove 140b (as shown in fig. 36 b) is formed between the retaining protrusion 140a and the C-shaped duckbill barrel 140, and the structure of the C-shaped duckbill barrel 140 is substantially the same as that of the C-shaped duckbill barrel 126 in the sixth embodiment (please refer to fig. 18, except that a fixing protrusion is disposed at the upper end of the C-shaped duckbill barrel in fig. 18, and a retaining protrusion 140a is disposed at the upper end of the C-shaped duckbill barrel 140 in.

Example fourteen

As shown in fig. 37 to 39, the principle of the fourteenth embodiment is substantially the same as that of the eleventh embodiment (the structure and principle of the lower half part controlling the lifting of the lifting member are similar to those of the seventh embodiment), and the same components include: the worm 112 and the follower rotation rod 138 (as shown in fig. 34), the rope winding shaft 114, the first rotation support 117, the second rotation support 118, and the position of the direction-changing pulley, etc.; compared with the eleventh embodiment, the present embodiment is characterized in that: 1. the lifting member is a threaded cylinder 136' (see fig. 38); 2. in order to realize the sliding connection between the lifting piece 113 and the rope winding shaft 114, a sliding piece is added below the rope winding shaft 114, the sliding piece is different from a spacer or a spacer for fixing the lifting rope), correspondingly, a groove for accommodating the sliding piece is arranged at the top end of the lifting piece threaded barrel 113, and

semi-annular sealing pieces

141a and 141b (141b are unnecessary parts) are fixed at the top end of the lifting piece threaded barrel by screws, so that the sliding piece can be sealed and locked in the groove at the top end of the lifting piece 113 threaded barrel, when the rope winding shaft 114 rotates, the sliding piece sealed in the groove at the top end of the lifting piece 113 synchronously slides and rotates, and when the rope winding shaft 114 rotates, the rope winding shaft 114 is lifted and lowered simultaneously under the pushing and pulling force of the lifting piece 113; 3. a sleeve guide bulge is arranged on the outer side of the thread cylinder 136', and a guide limit strip 133' is matched with the sleeve guide bulge; 4. the driving source in this embodiment is a rotating motor 130 (please refer to embodiment seven), which is not described again.

It is to be understood that the present invention may selectively use the above differences (i.e., not all of the differences are provided in the lift control device, only some of the differences are selected, and the same difference is true for other embodiments), or selectively apply the above differences to other embodiments.

Example fifteen

The fifteenth embodiment is basically the same as the fourteenth embodiment in structure and principle, and the same components are not illustrated and described again in the present invention, as shown in fig. 40, the difference between the two embodiments lies in: 1. the locking tab 141 is a continuous ring, rather than broken as in the fourteenth embodiment; 2. because the outer diameter of the sliding piece at the lower end of the rope winding shaft 114 is larger than the inner diameter of the annular locking piece 141, the annular locking piece 141 cannot be installed, the sliding piece on the rope winding shaft is separated into the independent sliding piece 143, the outer edge of the hollow tube at the upper end of the independent sliding piece 143 is provided with threads, and the through hole at the lower end of the rope winding shaft is internally provided with the threads matched with the through hole, as shown in fig. 40; 3. annular seal piece 141 penetrates from the top of independent gleitbretter 143, then twists tightly independent gleitbretter 143 to the wiring axle 114 bottom, and little nut hole has been seted up to wiring axle bottom through-hole internal thread portion pipe wall, and available screw locks independent gleitbretter 143, can guarantee independent gleitbretter 141 and wiring axle 114 synchronous revolution, prevents that it from taking off at rotatory lift's in-process pine. 4. A first ball 144 is arranged between the upper end surface of the slide plate and the lower end surface of the annular locking plate 141, and annular track grooves matched with the first ball are respectively arranged on the two surfaces; and a second ball 145 is arranged between the lower end face of the sliding sheet and the groove face at the top end of the lifting piece threaded cylinder 113, and annular track grooves matched with the second ball are respectively arranged on the two faces. 5. The biggest difference between the embodiment and the fourteenth embodiment is that two groups of balls are added between the rope winding shaft 114 and the lifting member threaded cylinder 113 to form rolling friction, while the fourteenth embodiment is sliding friction, so that the friction force between the rope winding shaft and the lifting member is smaller, the transmission efficiency is higher, and the energy is saved.

Example sixteen

As shown in fig. 41 and fig. 42, the structure and principle of the sixteenth embodiment are substantially the same as those of the fourteenth embodiment, (the structure and principle of the lower half part controlling the lifting of the lifting element are similar to those of the eighth embodiment), and the same components are not labeled and described again, and the difference between the two embodiments is that: the worm 112 is replaced by a screw 146 (as shown in fig. 41 and 42), and the screw 146 and the follower rotating rod 138 may be integrally formed (as shown in fig. 42) or may be fixedly connected. The guiding and limiting strips 133 'and the sleeve 136' are described in detail in the fourteenth embodiment. In addition, the present embodiment may be modified from the fifteenth embodiment. The lifting thread cylinder is internally provided with only one section of thread matched with the screw rod, the thread is arranged at the lower end of the lifting piece, and the upper end of the lifting thread cylinder is a sleeve with the inner diameter slightly larger than the rope winding shaft.

Example seventeen

As shown in fig. 43, the seventeenth embodiment is basically the same as the fourteenth embodiment in structure and principle, except for the sleeve 136', other same components are not illustrated and described again in the present invention, and the difference between the two embodiments is: 1. the worm 112 is replaced by a lead screw 147 (as shown in fig. 43), and the lead screw 147 and the follower rotation rod 138 may be integrally formed or may be fixedly connected. 2. In this embodiment, a nut 148 (shown in fig. 43) adapted to the screw 147 is added; 3. sleeve 136' is instead a hollow core sleeve 149 (as shown in fig. 43) and nut 148 is attached (with screws) to the end of hollow core sleeve 149 facing away from follower rotation bar 138, without threads being required inside hollow core sleeve 149. In addition, the present embodiment may be modified from the fifteenth embodiment.

Besides, in the embodiment, the nut 148 may not be provided, but a thread may be formed inside the hollow sleeve, or other adaptive adjustment may be performed, and it can be understood that the scheme obtained by simple adjustment also belongs to the protection scope of the present invention.

EXAMPLE eighteen

As shown in fig. 44 and fig. 45, the eighteenth embodiment is substantially the same as the eleventh embodiment in structure and principle, for example, the worm is driven by the long cylindrical motor to rotate, and then the worm drives the rack to ascend and descend, and the eighteenth embodiment and the eleventh embodiment have the following common points: the rope winding shaft is driven by the rack to lift and rotate simultaneously. The embodiment is characterized in that: the rope winding device is further provided with a fixed threaded rod 150, the fixed threaded rod 150 is fixed (the fixed threaded rod 150 is clamped in the first fixed support seat 117', the first fixed support seat 117' is fixed in the hollow support tube), the outer edge of the fixed threaded rod is provided with an external thread, and the rope winding shaft 114' is provided with an internal thread matched with the fixed threaded rod 150.

In this embodiment, the long cylindrical motor drives the worm to rotate, the worm drives the rack 113 to move up and down, the rack 113 drives the rope winding shaft 114' to move up and down, and the rope winding shaft 114' rotates (clockwise or counterclockwise) while moving up and down because the immovable threaded rod 150 is fixed and the immovable threaded rod 150 is engaged with the rope winding shaft 114 '; with the direction-changing pulley fixed, the lifting rope is wound around the rope winding shaft 114 'or released from the rope winding shaft 114', and the controlled object is lifted and lowered.

This example differs from example eleven by: 1. the rope winding shaft is separated from the rotating part, and the fixed threaded rod is separated from the rotating part as well, so that the rope winding shaft and the rotating part need to be fixed independently; 2. the fixed threaded rod is independently fixed by two supporting seats, two ends of the fixed threaded rod are provided with fixing grooves, the supporting seats at the two ends are provided with fixing grooves matched with the fixing grooves, and finally the fixed threaded rod is clamped by keys matched with the fixing grooves; 3, two ends of the worm of the rotating part are respectively sleeved with a supporting seat, the supporting seat is not provided with a fixed groove, and the rotating part can smoothly rotate; 4. furthermore, the support base below the fixed threaded rod and the support base at the upper end of the rotating worm can be removed, and then the lower end of the fixed threaded rod is sleeved in the cylindrical groove formed at the upper end of the worm, so that the redundant support bases can be omitted, and the fixed threaded rod and the supporting base are fixed in the same axial direction (as the lifting piece rack in the embodiment surrounds the opening of the rotating worm, the worm is not reinforced, the connection method is not firm, and the proper surrounding reinforcement needs to be carried out at the connection point).

Example nineteen

As shown in fig. 46, the structure and principle of the nineteenth embodiment are substantially the same as those of the twelfth embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: 1. the lifting piece is a triangular rack 139 (as shown in fig. 46 and 35); 2. the second rotary support seat is a diamond rotary support seat (please refer to fig. 46 and 35, and fig. 14 and 16 in the fifth embodiment).

Example twenty

As shown in fig. 47, the structure and principle of the twenty embodiment are basically the same as those of the thirteen embodiment, and the same components are not labeled and described again in the present invention, and the difference between the two embodiments lies in: the elevator is a C-shaped duckbill 140 (see figure 47, see also figure 36 a). Due to the adoption of the semi-surrounding lifting piece C-shaped duckbill barrel, the shape of the supporting seat is adaptively adjusted.

Example twenty one

As shown in fig. 48a and 48b, the structure and principle of the twenty-first embodiment are basically the same as those of the fourteenth embodiment, and the same components are not labeled and described again (please refer to fig. 48b for specific component arrangement and matching relationship), and the difference between the two embodiments is: 1. the lifting member is a sleeve 136' (as shown in fig. 48 a), please refer to the fourteenth embodiment; 2. the connection mode of the rotating worm and the fixed threaded rod is different, and the connection mode is different from the connection mode of the rotating worm and the fixed threaded rod which are separately fixed, in the embodiment, because the fully-enclosed threaded barrel lifting piece is adopted, a supporting seat at the joint of the rotating piece and the fixed threaded rod needs to be removed, namely the supporting seat below the fixed threaded rod and the supporting seat at the upper end of the rotating piece are removed, and then the lower end of the fixed threaded rod is sleeved in a containing groove formed in the top end of the rotating worm; 3. because of the reinforcement of the totally enclosed lifting piece threaded cylinder and the guide limit strip 133', the worm and the fixed threaded rod are always in the same axial direction, and the connection mode is relatively stable; 4. a sleeve guide bulge is arranged on the outer side of the sleeve 136', and a guide limit strip 133' is matched with the sleeve guide bulge; 5. the driving source in this embodiment is a rotating motor 130 (please refer to embodiment seven), which is not described again.

It is understood that the present invention can selectively use the above differences (i.e. not all of the differences are set in the lift control device, only some of the differences are set, and the differences in other embodiments are the same), or selectively apply the above differences to other embodiments.

Example twenty two

The structure and principle of embodiment twenty two and embodiment twenty one are the same basically, the same spare part the utility model discloses do not show again and describe, the difference between two embodiments lies in: the worm is replaced by a screw 146 (shown in figure 49).

Example twenty three

The structure and principle of embodiment twenty three and embodiment seventeen are basically the same, the same spare part the utility model discloses do not show again and explain repeatedly, the difference between two embodiments lies in: 1. instead of a worm, a lead screw 147 (as shown in fig. 50) is used, the rotating member is the lead screw 147, and the connection between the lead screw 147 and the non-rotating threaded rod is as follows: the lower end of the fixed threaded rod is sleeved in a cylindrical groove formed in the top end of the rotating worm. The connection is stable due to the reinforcement of the hollow sleeve 149 of the totally enclosed lifting piece and the guide limit strip. 2. In this embodiment, a nut 148 (shown in fig. 51 a) adapted to the screw 147 is added; 3. the sleeve 136' is instead a hollow sleeve 149 (as shown in fig. 51 a) and the nut 148 is attached to the hollow sleeve 149 near the drive source end and does not need to be internally threaded (as shown in fig. 51 b).

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. A lifting control device is characterized by comprising: the rope winding shaft is connected with the rotating piece, the driving source is used for driving the rope winding shaft to rotate, and the rope winding shaft is used for driving the lifting piece to lift through the rotating piece;

alternatively, it comprises: the rope winding device comprises a driving source, a rotating piece, a rope winding shaft, a lifting piece, a turning pulley and a lifting rope, wherein the driving source, the rotating piece and the lifting piece are sequentially connected, the driving source is used for driving the rotating piece to rotate, and the rotating piece is used for driving the lifting piece to lift; the rope winding shaft is driven by a rotating piece to rotate, or the rope winding shaft is connected with the lifting piece and performs rotating motion while synchronously lifting with the lifting piece;

one end of the lifting rope is wound on the rope winding shaft, the middle part of the lifting rope penetrates through the turning pulley, and the other end of the lifting rope is used for being connected with a controlled object.

2. The elevating control device as set forth in claim 1, further comprising a hollow support tube, the rotation member, the rope winding shaft, the elevating member, one end of the elevating rope, and the direction changing pulley being disposed in the hollow support tube; or the lifting control device is used for being arranged in a hollow supporting pipe of mechanical equipment.

3. The lifting control device as claimed in claim 2, wherein a guide groove is formed on one side of the lifting member facing the hollow support tube, and the hollow support tube is provided with a guide projection adapted to the guide groove; or a guide limiting strip is fixed on the inner wall of the hollow supporting tube and provided with a guide protrusion matched with the guide groove or matched with the guide groove.

4. The lift control device of claim 2, wherein said rope winding shaft is fixedly connected to said rotatable member and rotatable in synchronism therewith; the direction-changing pulley is fixedly connected to any end of the lifting piece.

5. The lift control device of claim 4, wherein said first rotary bearing is disposed around an outer periphery of said cable shaft and/or said second rotary bearing is disposed around an outer periphery of said rotary member, said first rotary bearing and/or said second rotary bearing being secured to said hollow support tube.

6. The lift control device of claim 4, wherein the rope spool has a through hole, and the lift rope is threaded through the through hole and then wound around the rope spool.

7. The elevating control device as set forth in claim 2, further comprising a stationary threaded rod, wherein the rope winding shaft is connected to the elevating member and can be synchronously lifted and lowered with the elevating member while rotating around the stationary threaded rod; the direction-changing pulley is fixed.

8. The lifting control device as claimed in claim 7, wherein a first fixed support seat is sleeved on an outer edge of an upper end of the fixed threaded rod, a fixed groove is formed in the first fixed support seat, and a fixed protrusion matched with the fixed groove is arranged on an outer edge of the fixed threaded rod; the outer edge of the rotating part is provided with a second rotating supporting seat, and the first fixed supporting seat and the second rotating supporting seat are fixed on the hollow supporting tube.

9. The lifting control device as claimed in claim 2, further comprising a follow-up rotating rod fixedly connected to or integrally formed with the rotating member; the rope winding shaft is rotatably connected with the lifting piece, when the lifting piece is lifted, the rope winding shaft synchronously rotates with the follow-up rotating rod and lifts along the follow-up rotating rod, and the direction-changing pulley is fixed.

10. The lift control device of claim 9, wherein the follower lever has a first pivot bearing positioned around the follower lever and/or a second pivot bearing positioned around the pivot lever, the first pivot bearing and/or the second pivot bearing being fixedly attached to the hollow support tube.

11. The lifting control device as claimed in claim 1, wherein the direction-changing pulley includes a connecting portion for connecting a fixed source for fixing the direction-changing pulley, and a sliding portion including a fan-shaped sliding base on which at least one rolling wheel is provided.

12. The lifting control device as claimed in claim 1, wherein the rope winding shaft is provided at an upper end and/or a lower end thereof with a spacer or a spacer, the spacer is provided with a rope threading hole, and the lifting rope is passed through the rope threading hole; the isolation gasket comprises an open-pore wafer and a partition wafer, wherein the open-pore wafer is provided with a rope-threading hole, the lifting rope penetrates through the rope-threading hole, and the partition wafer is located on one side, deviating from the direction-changing pulley, of the open-pore wafer.