Lift control device

Abstract

The application discloses a lifting control device, comprising a driving source, a rotating member, a winding rope shaft, a lifting member, a direction-changing pulley and a lifting rope. The driving source, the rotating member and the lifting member are sequentially connected. The winding rope shaft rotates synchronously with the rotating member or performs a rotating motion while ascending and descending synchronously with the lifting member. One end of the lifting rope is wound around the winding rope shaft, the middle part of the lifting rope passes through the direction-changing pulley, and the other end of the lifting rope is used for connecting a controlled object. The lifting control device provided by the application can gradually increase the length of the lifting rope wound around the winding rope shaft, and the controlled object will gradually ascend. Conversely, the length of the lifting rope wound around the winding rope shaft will gradually decrease, and the controlled object will gradually descend. The winding of the lifting rope can realize the long-stroke control of the controlled object, and the problem that the lifting control device in the prior art occupies a large space when realizing the long-stroke lifting control is solved.

Description

Technical Field

[0001] This invention relates to the field of mechanical structure technology, and in particular to a lifting control device. Background Technology

[0002] Lifting control devices are widely used and have a wide variety of applicable structures. For example, invention patent CN206735703U discloses a four-wheel lifting device. Figure 1 As shown, it includes a base frame 16, four sets of casters 1 located at the bottom of the base frame 16, and a guide mechanism and a transmission mechanism located between the base frame 16 and the casters 1. The guide mechanism includes a guide post located above the mounting seat of each set of casters 1 and a guide support 17 located on the base frame 16. The guide post passes through the base frame 16 and cooperates with the guide support 17 for vertical guidance. The transmission mechanism includes a transverse gear drive shaft 6, a longitudinal gear drive shaft 13, and a gear and worm gear drive mechanism installed at both ends of the transverse gear drive shaft 6 and the longitudinal gear drive shaft 13. The transverse gear drive shaft 6 and the longitudinal gear drive shaft 13 are both installed on the base plate frame 16, and each of the four sets of guide columns is provided with a lifting rack that meshes with the gears at both ends of the transverse gear drive shaft 6 and the longitudinal gear drive shaft 13. The four sets of guide columns are synchronously connected through the transverse gear drive shaft 6 and the longitudinal gear drive shaft 13. The worm gear drive mechanism is located on the transverse gear drive shaft 6 or the longitudinal gear drive shaft 13 and is used to drive the base plate frame 16 to move up and down on the four sets of casters 1.

[0003] For example, the invention patent with authorization announcement number CN201952162U discloses a lifting device and a packaging box having the lifting device, such as Figure 2 As shown, the lifting device includes: a base frame 10, a top frame 50, and a scissor mechanism 30 disposed between the base frame 10 and the top frame 50. A first strip groove 11 is provided at one end of the base frame 10, a second strip groove 51 is provided at the same end of the top frame 50, a first hinge hole 12 is provided at the other end of the base frame 10, and a second hinge hole 52 is provided at the same end of the top frame 50. The scissor mechanism 30 is connected to the base frame 10 through the first strip groove 11 and the first hinge hole 12, and is connected to the top frame 50 through the second strip groove 51 and the second hinge hole 52.

[0004] As described above, the four-wheel lifting device directly uses gears and racks to achieve lifting, which is usually used to achieve short-stroke lifting control. Long-stroke lifting control requires doubling the size of the gears and racks to ensure structural strength, resulting in a large space occupation. The lifting device described above achieves lifting control through a scissor mechanism, which itself has the problem of occupying a large space. It can be said that most of the existing lifting control devices have the problem of occupying a large space when achieving long-stroke lifting control.

[0005] It can be seen that the prior art still needs to be improved and developed. SUMMARY

[0006] In view of the deficiencies of the prior art, the purpose of the present application is to provide a lifting control device, aiming to improve the problem of large space occupation when the lifting control device of the prior art realizes long-stroke lifting control.

[0007] The technical solution of the present application is as follows:

[0008] A lifting control device, comprising: a driving source, a rope winding shaft, a rotating member, a lifting member, a direction-changing pulley and a lifting rope, the rope winding shaft being connected with the rotating member, the driving source being used to drive the rope winding shaft to rotate, the rope winding shaft being used to drive the lifting member to lift through the rotating member; or, comprising: a driving source, a rotating member, a rope winding shaft, a lifting member, a direction-changing pulley and a lifting rope, the driving source, the rotating member and the lifting member being connected in sequence, the driving source being used to drive the rotating member to rotate, the rotating member being used to drive the lifting member to lift; the rope winding shaft rotating under the driving of the rotating member, or the rope winding shaft being connected with the lifting member and performing a rotating motion while lifting synchronously with the lifting member; one end of the lifting rope being wound around the rope winding shaft, the middle part passing through the direction-changing pulley, and the other end being used to connect a controlled object.

[0009] Compared with the prior art, the lifting control device provided by the present application can use the rotating member, the lifting member, the rope winding shaft and the direction-changing pulley to wind or release the lifting rope from the rope winding shaft. As the length of the lifting rope wound around the rope winding shaft gradually increases, the controlled object will gradually rise, and vice versa. The length of the lifting rope wound around the rope winding shaft gradually decreases, the controlled object will gradually lower. The long-stroke control of the controlled object can be realized through the winding of the lifting rope, and the problem of large space occupation when the lifting control device of the prior art realizes long-stroke lifting control is improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a structural schematic diagram of a four-wheel lifting device in the prior art.

[0011] Figure 2 is a structural schematic diagram of a lifting device in the prior art.

[0012] Figure 3 is a structural schematic diagram of a lifting control device of embodiment one of the present application.

[0013] Figure 4a is a top view of the lifting control device of embodiment one of the present application.

[0014] Figure 4b is a structural schematic diagram of a worm used in embodiment one of the present application.

[0015] Figure 5 is a structural schematic diagram of the direction-changing pulley used in embodiment one of the present application.

[0016] Figure 6 is a structural schematic diagram of the isolation sheet used in embodiment one of the present application.

[0017] Figure 7 is a schematic diagram of the positional relationship between the first rotating support seat and the hollow support tube used in embodiment one of the present application.

[0018] Figure 8 is a structural schematic diagram of the lifting control device in embodiment two of the present application.

[0019] Figure 9 is a structural schematic diagram of the rack used in embodiment two of the present application.

[0020] Figure 10 is a structural schematic diagram of the rope winding shaft and worm used in embodiment three of the present application.

[0021] Figure 11 is a structural schematic diagram of the lifting control device in embodiment three of the present application.

[0022] Figure 12 is a structural schematic diagram of the hollow support tube and rotating handle used in embodiment four of the present application.

[0023] Figure 13 is a structural schematic diagram of the lifting control device in embodiment four of the present application.

[0024] Figure 14a is a structural schematic diagram of the lifting control device in embodiment five of the present application.

[0025] Figure 14b is a top view of the lifting control device in embodiment five of the present application.

[0026] Figure 15 is a structural schematic diagram of the rack used in embodiment five of the present application.

[0027] Figure 16 is a structural schematic diagram of the rhombus rotating support seat used in embodiment five of the present application.

[0028] Figure 17 is a structural schematic diagram of the lifting control device in embodiment six of the present application.

[0029] Figure 18 is a structural schematic diagram of the C-shaped cylinder used in embodiment six of the present application.

[0030] Figure 19 is a structural schematic diagram of the isolation connecting sheet used in embodiment six of the present application.

[0031] Figure 20is a structural schematic view of the T-shaped support seat used in embodiment six of the present application.

[0032] Figure 21 is a sectional view of the lifting control device in embodiment seven of the present application.

[0033] Figure 22 is a structural schematic view of the lifting control device in embodiment seven of the present application.

[0034] Figure 23 is a structural schematic view of the rope winding shaft transmission rod used in embodiment seven of the present application.

[0035] Figure 24 is a structural schematic view of the triangular guide limiting strip used in embodiment seven of the present application.

[0036] Figure 25 is a structural schematic view of the lifting control device in embodiment eight of the present application.

[0037] Figure 26a is a sectional view of the lifting sleeve used in embodiment eight of the present application.

[0038] Figure 26b is a structural schematic view of the rope winding shaft transmission rod used in embodiment eight of the present application.

[0039] Figure 27 is a structural schematic view of the lifting control device in embodiment nine of the present application.

[0040] Figure 28 is a structural schematic view of the rope winding shaft transmission rod used in embodiment nine of the present application.

[0041] Figure 29 is a schematic view of the connection relationship between the nut and the sleeve used in embodiment nine of the present application.

[0042] Figure 30 is a sectional view of the connection relationship between the nut and the sleeve used in embodiment nine of the present application.

[0043] Figure 31 is a structural schematic view of the lifting control device in embodiment ten of the present application.

[0044] Figure 32 is a structural schematic view of the lifting control device in embodiment eleven of the present application.

[0045] Figure 33 is a structural schematic view of the rack used in embodiment eleven of the present application.

[0046] Figure 34 is a schematic view of the position relationship between the follow-up rotating rod and the worm in embodiment eleven of the present application.

[0047] Figure 35 is a structural schematic view of the lifting control device in embodiment twelve of the present application.

[0048] Figure 36a is a structural schematic diagram of the lifting control device of the embodiment thirteen of the present application.

[0049] Figure 36b is a structural schematic diagram of the C-shaped sleeve used in the embodiment thirteen of the present application.

[0050] Figure 37 is a structural schematic diagram of the lifting control device of the embodiment fourteen of the present application.

[0051] Figure 38 is a connection relationship schematic diagram of the connecting ring and the sleeve used in the embodiment fourteen of the present application.

[0052] Figure 39 is a connection relationship sectional view of the connecting ring and the "Bei" character-shaped connecting piece used in the embodiment fourteen of the present application.

[0053] Figure 40 is a connection relationship sectional view of the "Cun" character-shaped connecting piece, the connecting ring, the sleeve, the first ball and the second ball used in the embodiment fifteen of the present application.

[0054] Figure 41 is a structural schematic diagram of the lifting control device of the embodiment sixteen of the present application.

[0055] Figure 42 is a position relationship schematic diagram of the follow-up rotating rod and the screw rod of the embodiment sixteen of the present application.

[0056] Figure 43 is a structural schematic diagram of the screw rod, the nut, the hollow sleeve and the follow-up rotating rod of the embodiment seventeen of the present application.

[0057] Figure 44 is a structural schematic diagram of the lifting control device of the embodiment eighteen of the present application.

[0058] Figure 45 is a sectional view of the lifting control device of the embodiment eighteen of the present application.

[0059] Figure 46 is a structural schematic diagram of the lifting control device of the embodiment nineteen of the present application.

[0060] Figure 47 is a structural schematic diagram of the lifting control device of the embodiment twenty of the present application.

[0061] Figure 48a is a structural schematic diagram of the lifting control device of the embodiment twenty-one of the present application.

[0062] Figure 48b is a sectional view of the lifting control device of the embodiment twenty-one of the present application.

[0063] Figure 49is a structural schematic diagram of the lifting control device of the embodiment twenty-two of the present application.

[0064] Figure 50 is a structural schematic diagram of the lifting control device of the embodiment twenty-three of the present application.

[0065] Figure 51a is a structural schematic diagram of the screw rod, the nut and the hollow sleeve of the embodiment twenty-three of the present application.

[0066] Figure 51b is a sectional view of the hollow sleeve used in the embodiment twenty-three of the present application. DETAILED DESCRIPTION

[0067] The present application provides a lifting control device, in order to make the purpose, technical scheme and effect of the present application more clear and definite, the present application is further explained in detail below with reference to the drawings and examples. It should be understood that the specific embodiments herein are only used to explain the present application, and are not used to limit the present application.

[0068] The present application provides a lifting control device, which is used for controlling the lifting of some objects or parts; comprising: a driving source, a rotating member, a winding rope shaft, a lifting member, a direction-changing pulley and a lifting rope, wherein the driving source, the rotating member and the lifting member are connected in sequence, the driving source is used to drive the rotating member to rotate, and the rotating member is used to drive the lifting member to lift; the winding rope shaft is connected with the rotating member and rotates synchronously with the rotating member, or the winding rope shaft is connected with the lifting member and performs a rotating motion while lifting synchronously with the lifting member; one end of the lifting rope is wound around the winding rope shaft, the middle part passes through the direction-changing pulley, and the other end is used to connect the controlled object.

[0069] When the winding rope shaft is connected with the rotating member, the winding rope shaft will rotate under the driving of the rotating member, and at the same time, the lifting member will lift under the driving of the rotating member (the disclosed rotating member and lifting member are matched as follows: the rotating member is a worm, and the lifting member is a rack, a C-shaped nut barrel or a nut barrel; the rotating member is a screw rod or a screw rod, and the lifting member is a nut), and the direction-changing pulley is fixed on the lifting member. With the rotation of the rotating member and the winding rope shaft, and the lifting of the lifting member and the direction-changing pulley, the lifting rope will be continuously wound around the winding rope shaft or released from the winding rope shaft, so as to gradually lift or lower the controlled object.

[0070] When the winding shaft is connected with the lifting member, the lifting control device further comprises a fixed threaded rod or a follow-up rotating rod. When the fixed threaded rod is arranged, a threaded hole is arranged in the middle of the winding shaft, the winding shaft is connected with the lifting member and can be lifted synchronously with the lifting member, and the winding shaft rotates around the fixed threaded rod, and the change direction pulley is fixed. Since the fixed threaded rod is fixed, the winding shaft rotates while being lifted, and the lifting rope is continuously wound on or released from the 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 or integrally formed with the rotating member. The winding shaft is rotatably connected with the lifting member, and the winding shaft rotates synchronously with the follow-up rotating rod and is lifted along the follow-up rotating rod while the lifting member is lifted. The change direction pulley is fixed. The winding shaft rotates while being lifted, and the lifting rope is continuously wound on or released from the winding shaft, so that the controlled object is gradually lifted or lowered.

[0071] The lifting control device provided by the application can be applied to the lifting control of various mechanical equipment, other instruments or other objects, etc., such as lifting beds. At present, beds include bunk beds, high beds, lifting rope beds and counterweight lifting beds. The ordinary bed and the bunk bed occupy a large area of space, waste indoor space, the high bed needs to be climbed, which is not only laborious and inconvenient but also unsafe, and is limited by the height of the ceiling, the upper space is limited, and because it is too close to the ceiling, it is easy to cause a sense of oppression; the lower space is also not high enough, and it is necessary to bend down, which is also easy to hit the head, which is not only inconvenient but also uncomfortable. The two kinds of beds waste a large amount of space that can be effectively utilized. The lifting rope bed winds the steel wire rope through the rotating shaft installed on the ceiling to realize the lifting function, the steel wire rope is exposed outside, the rotating shaft is installed on the ceiling by screws, which is not only not beautiful but also not safe, and the installation is also very troublesome. The counterweight lifting bed needs to install a heavy counterweight device, and the counterweight block needs to occupy additional space. In order to be safe and prevent danger, professional personnel are needed to install, the installation difficulty is large, and the cost is also high.

[0072] If the lifting control device provided by the application is used, the lifting control device can be arranged in the bed frame support column, the appearance is simple and beautiful, no additional space is occupied, the function of the lifting bed is realized, and the form and function are perfectly combined. It solves the problem that the area of modern small-sized family, student dormitory and apartment is small, the space is narrow, the ordinary bedding occupies a large amount of space, and the limited space cannot be efficiently utilized.

[0073] The lifting bed provided with the lifting control device can be lifted to a suitable height in the daytime, and a sofa, a desk computer or the like can be placed on the large space, so that the bedroom is changed into a living room, a study, an office or even a fitness exercise site. At night, the lifting bed can be lowered to a suitable height, and the bedroom is changed back. The lifting bed can diversify the space, efficiently utilize the limited space and improve the life quality and level of people. Since the lifting device is embedded in the bed frame, the appearance is simple and beautiful, no extra space is occupied, the installation process is simplified, the installation difficulty is reduced, and the installation operation is more convenient and feasible.

[0074] It can be understood that the number of lifting ropes and direction-changing pulleys does not need to be specifically limited in the present application, and the following listed embodiments are only used to illustrate the basic principles of the present application, and are not used to limit the protection scope of the present application.

[0075] The relationship among the lead of the worm, the lifting ratio of the rack and the winding density of the lifting rope is explained as follows by taking the worm as the rotating member and the rack as the lifting member: the rotating member is the worm, the lead is H, the pitch is A, and the number of heads is z, z≥1 (it can be single head or multiple heads); the lifting member is the rack, the pitch is L, the number of racks in a single system is B, B≥1 (it can be one, two, three or four), the pitch L of the rack is the same as the pitch A of the worm, L=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≥1 (it can be one, two, three or four), the number b of the lifting ropes is the same as the number B of the racks, b=B (the lifting rope passes through the pulley on the corresponding rack, and one lifting rope corresponds to one pulley).

[0076] The following conditions are met, that is, the tight and uniform winding of the lifting rope is achieved:

[0077] The lead H of the worm is greater than the diameter D of the lifting rope multiplied by the number b of the lifting ropes (condition 1).

[0078] The pitch L of the rack is equal to the pitch A of the worm, that is, the pitch L of the rack is equal to the lead H of the worm divided by the number z of the heads of the worm (condition 2).

[0079] Embodiment one

[0080] As shown in the drawings, in the present embodiment, the driving source is a long tubular motor 111 (as shown in the drawing), the rotating member is a worm 112 (as shown in the drawing), the lifting member is a rack 113 (as shown in the drawing), the outer edge of the lower end of the winding shaft 114 is provided with a separation piece 119, the separation piece 119 is provided with a rope passing hole 119a (as shown in the drawing), one end of the lifting rope 116 is wound around the winding shaft 114 after passing through the rope passing hole 119a, and the middle part passes through the direction-changing pulley 115 (as shown in the drawing). Figures 3 to 7 Figure 3 Figure 4b Figure 3 Figure 6 Figure 3 ​​​​​And Figure 5 The other end is used to connect the controlled object.

[0081] When driving the controlled object to rise, the long tube-shaped motor 111 drives the worm 112 to rotate, and through the meshing of the worm 112 and the rack 113, the worm 112 drives the rack 113 to rise, at the same time, the worm 112 drives the isolation sheet 119 and the winding rope shaft 114 to rotate, because the two direction-changing pulleys 115 are fixed on the upper ends of the two racks 113 (which can be achieved by riveting or welding, etc.), therefore, the direction-changing pulley 115 will rise synchronously with the rack 113, with the rising of the direction-changing pulley 115 and the rotation of the winding rope shaft 114, the lifting rope 116 (preferably steel wire rope) will gradually wind around the winding rope shaft 114, and the controlled object will gradually rise; conversely, the controlled object will gradually descend.

[0082] In a further preferred embodiment, the outer edge of the winding rope shaft 114 is sleeved with a first rotating support seat 117 (as shown in Figure 3 Figure 7 The outer edge of the worm 112 is sleeved with a second rotating support seat 118 (as shown in Figure 3 The first rotating support seat 117 and the second rotating support seat 118 are fixed and cannot be moved, and there are many ways to fix them, such as fixed connection with the shell of the long tube-shaped motor 111, or in the case of providing the hollow core support pipe 110 (as shown in Figure 7 The screw LD (as shown in Figure 7 Is fixed to the hollow core support pipe 110 (as shown in Figure 4a Or other ways, which are not limited in the present application.

[0083] Preferably, the lifting control device further comprises a hollow core support pipe 110, and the driving source, the rotating member, the winding rope shaft 114, the lifting member and the direction-changing pulley 115 are all arranged in the hollow core support pipe 110; or the lifting control device is arranged in the hollow core support pipe of a mechanical equipment.

[0084] As shown in Figure 4a The inner wall of the hollow core support pipe 110 is provided with two guide strips 110a (the specific structure of the guide strip is shown in Figure 4a Between the two guide strips 110a, a guide groove is formed, and the shape of the guide groove is matched with the shape of the rack 113.

[0085] In order to maximize the effective radius of the direction-changing pulley 115 in a limited space, it is necessary to slightly offset the direction-changing pulley sliding part to the diagonal direction of the hollow core support pipe, which causes a certain angle between the direction-changing pulley and the lifting member, so the shape of the part where the lifting member installs the direction-changing pulley needs to be designed accordingly.​

[0086] As shown in Figure 5 , preferably, the deflection pulley 115 comprises a connecting part 115a for connecting the lifting member and a sliding part 115b comprising a fan-shaped sliding base provided with at least one rolling wheel 115c (preferably a plurality of circumferentially arranged rolling wheels, as shown in Figure 5 , so as to replace the conventional large pulley with a fan-shaped pulley). The sliding base is provided in the form of a 1 / 4 round fan, so as to maximize the effective radius of the deflection pulley in a limited space. In the same space, the fan-shaped sliding base makes the effective radius of the deflection pulley larger, so as to minimize the strain of the lifting rope.

[0087] As shown in Figure 6 , the isolation sheet 119 is provided with a rope passing hole 119a through which the lifting rope 116 is wound around the rope winding shaft 114. Further, the rope winding shaft 114 is provided at the lower end of the isolation sheet 119 with a connecting protrusion 136 provided with a connecting groove 136b, the shape of which is adapted to the upper end protrusion of the worm 112 (as shown in Figure 4b , not labeled), preferably rectangular, or other non-circular shapes are also available. (The rope winding shaft and the worm can be fixedly connected or integrally formed). The isolation sheet 119 can also be replaced by an isolation gasket, and the rope winding shaft can be provided with the isolation sheet or isolation gasket at both ends. The lifting rope can be fixed to the isolation sheet or isolation gasket at either end of the rope winding shaft and wound from the isolation sheet or isolation gasket. Correspondingly, the fixed orientation, direction and traction direction of the deflection pulley for pulling the lifting rope also need to be adjusted according to the actual situation (the setting mode of the isolation sheet or isolation gasket on the rope winding shaft in other embodiments is the same, and the present application will not be repeated here).

[0088] 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 winding shaft 114 to rotate synchronously through the matching relationship between the upper end of the protrusion and the connecting groove 136b, and since the worm 112 only rotates and the rack 113 matched with the worm 112 is limited to only lift by the guide bar 110a, the rack 113 will rise along the axis of the winding shaft 114 at the same time when the worm 112 rotates counterclockwise. Since the change direction pulley 115 is fixedly connected to the rack 113, the lifting rope 116 is wound on the winding shaft 114, and the controlled object connected to the other end of the lifting rope will continuously rise. The change direction pulley 115 and the rack 113 continue to rise, but the top end cannot touch the first rotating support seat 117, otherwise the parts will be damaged due to mutual collision (the stroke limitation of the winding shaft in other embodiments is the same, and the present application will not be repeated). When the controlled object needs to be lowered, the driving source 111 rotates clockwise, driving the worm 112 and the winding shaft to rotate clockwise, and the rack 113 drives the change direction pulley 115 to descend along the axis of the winding shaft 114, so that the lifting rope 116 is continuously released from the winding shaft 114, and the controlled object continuously descends. The change direction pulley 115 cannot touch or pass through the isolation sheet 119, otherwise the parts will be damaged due to mutual collision. 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 according to the structure disclosed in the embodiment of the present application, so the present application will not be repeated.

[0089] Embodiment two

[0090] As shown in Figure 8 and Figure 9 , embodiment two is basically the same as embodiment one, and the same parts of the present application are not marked and repeated. The difference between the two embodiments is that a first guide groove 113a (as shown in Figure 8 and Figure 9 ) is arranged on one side of the rack 113 facing the hollow support pipe 110 (the same as embodiment one, not shown in the figure), and the hollow support pipe is provided with a first guide protrusion matched with the first guide groove (the matching mode of the guide groove and the guide protrusion is prior art, which will not be repeated and additionally shown).

[0091] It should be noted that the isolation piece in all embodiments can be replaced by an isolation gasket, the difference between the two is that the isolation piece has only one opening disc; while the isolation gasket has two discs, one of which is open, and the other is not open, the open disc has the same effect as the isolation piece (both are fixed lifting ropes), and the non-opening disc is used to isolate the lifting rope from rubbing with other parts or from being pulled out of the winding shaft. In addition, isolation pieces or isolation gaskets can be provided at both ends of the winding shaft 114a (or the end away from the fixed lifting rope can also be used alone), and the isolation piece, isolation gasket or non-opening disc used alone at the end away from the fixed lifting rope has the effect of preventing the lifting rope from being pulled out.

[0092] Embodiment three

[0093] As shown in Figure 10 and Figure 11 , embodiment three is basically the same as embodiment one, the same parts of the invention are not marked and described again, the difference between the two embodiments is that: 1, embodiment three does not set the isolation piece 119, but sets a through hole 114a on the winding shaft 114 (as shown in Figure 10 and Figure 11 );2, the rack 113 is provided with a first guide groove 113a (as shown in Figure 9 ) on the side facing the hollow support tube 110 (the same as embodiment one, not shown again), and the hollow support tube is provided with a first guide protrusion (the cooperation mode of the guide groove and the guide protrusion is a prior art, which is not described again and additional drawing)。

[0094] It can be understood that the setting of the first guide groove 113a is not necessary, and the shapes of the rack 113 and the hollow support tube can adopt the same structure as embodiment one. Preferably, the winding shaft 114 and the worm 112 can be integrally formed, as shown in Figure 10 , or can be fixedly connected together.

[0095] Embodiment four

[0096] As shown in Figure 12 and Figure 13 , embodiment four is basically the same as embodiment three, the same parts of the invention are not marked and described again, the difference between the two embodiments is that: 1, a kind of manual driving mechanism is added, including: a crank 120, a transmission worm 121 and a driving worm gear 122, as shown in Figure 13 (other manual driving mechanisms can also be used, and the invention does not make specific limitations on this)。2, the hollow support tube 110' (as shown in Figure 12 ) is bent outward at the position matching the transmission worm 121 to form a containing cavity (as shown in Figure 13As shown (not marked), it is understandable that alternative solutions could be made by making the size of the drive worm gear 122 smaller to eliminate the need for the accommodating cavity, or by making the entire hollow support tube 110' larger. 3. In Embodiment 3, the long tubular motor 111, worm gear 112, and rope winding shaft 114 are arranged from bottom to top, while in Embodiment 4, they are arranged from top to bottom. This difference is not only in the different positions of the components but also in the difference in effect: with a fixed lateral space, the diameter of the rope winding shaft 114 in Embodiment 3 is smaller, while the diameter of the rope winding shaft 114 in Embodiment 4 is larger (because in Embodiment 3, the lifting rope 116 wound on the rope winding shaft is sandwiched between the rope winding shaft 114 and the lifting component 113, while in Embodiment 4, the lifting rope is not between the two, allowing the diameter of the rope winding shaft to be larger). The lifting control device in Embodiment 4 has a larger lifting range. 4. The relative position and orientation of the reversing pulley 115 connected to the lifting component 113 are different. In Embodiment 3, the reversing pulley is fixed at the upper end of the lifting component, while in Embodiment 4, the reversing pulley is fixed at the lower end of the lifting component.

[0097] It is understood that difference 1 above can be used alone (that is, based on embodiment 3, only a manual drive mechanism is added, without bending out the accommodating cavity on the hollow support tube, and without changing the arrangement direction of the parts). Similarly, difference 3 above can also be used alone (that is, based on embodiment 3, only the arrangement direction of the parts is changed, without adding a manual drive mechanism).

[0098] Example 5

[0099] like Figures 14a to 16 As shown, Embodiment 5 is basically the same as Embodiment 3. The same components are not further labeled or described in this invention. The difference between the two embodiments is: 1. The lifting component is a triangular rack, and there are two of them, namely the first triangular rack 123 and the second triangular rack 124 (e.g., Figure 14a As shown and Figure 15 (as shown); 2. Both triangular racks are 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 a guide protrusion 110a that matches the two guide grooves (as shown). Figure 14b As shown, one of the guide protrusions is blocked by the first support 117); 3. The second rotating support is a rhomboid rotating support 125 (as shown). Figure 14a and Figure 16 As shown, the first side 125a of the rhomboid rotating support 125 is flush with the first side 123a of the first triangular rack 123, and the second side 125b of the rhomboid rotating support 125 is flush with the first side 124a of the second triangular rack 124.

[0100] It is understood that this embodiment can also be based on other embodiments, such as Embodiment 1, Embodiment 2 or Embodiment 4. The above differences can also be selectively used, and there are many variations. This invention will not elaborate on them one by one here.

[0101] Example 6

[0102] like Figures 17 to 20 As shown, Embodiment Six is ​​basically the same as Embodiment One. The same components are not further labeled or described in this invention. The difference between the two embodiments is: 1. The lifting component is a C-shaped cylinder 126 (e.g., Figure 17 and Figure 18 (As shown), the C-shaped cylinder 126 has a thread in the middle that matches the worm gear; 2. An opening groove 126a is provided on one side of the C-shaped cylinder 126, and the annular portions of the two support seats 129 are both surrounded inside the C-shaped cylinder 126. The opening groove 126a fits perfectly into the neck of the two support seats 129, and the cross-section of the opening groove 126a matches the neck of the support seat 129. Here, the neck of the support seat 129 plays the role of guiding the guide protrusion of the C-shaped cylinder 126; 3. A fixing protrusion 126b for fixing the reversing pulley is provided at the upper end of the C-shaped cylinder 126; 4. The second rotating support seat is a T-shaped support seat 129 (as shown). Figure 17 and Figure 20 (as shown); 5. Two T-shaped support seats 129 are provided, respectively sleeved on both ends of the worm gear; 6. A connecting block 127 is provided at the lower end of the isolation plate 119 (as shown); Figure 17 and Figure 19 As shown, due to the perspective, Figure 19 (The rope winding shaft is not shown or labeled.) The connecting block 127 can be integrally formed with the isolation plate 119, or integrally formed on the rope winding shaft, or fixedly connected to both. The lower end of the connecting block 127 extends a connecting protrusion 127b. The shape of the connecting protrusion 127b is adapted to the groove at the upper end of the worm gear, preferably rectangular, or other non-circular shapes are also acceptable. Preferably, two isolation plates 119 are provided, with the two isolation plates 119 respectively located at both ends of the rope winding shaft. The isolation plate facing away from the drive source has the function of preventing the lifting rope from slipping out.

[0103] It is understood that the present invention may selectively use the above distinctions, or selectively apply the above distinctions to other embodiments, such as Embodiment 4, Embodiment 5, etc.; the present invention will not elaborate on these distinctions further.

[0104] Example 7

[0105] like Figures 21 to 24 As shown, Embodiment Seven is basically the same as Embodiment One. The same components are not further labeled or described in this invention. The difference between the two embodiments is: 1. The driving source is a rotary motor 130 (e.g., Figure 21The rotating member, the rope winding shaft and the isolation sheet are integrally formed as the rope winding shaft transmission rod 131 (as shown in Figure 21 and Figure 23 The rotating member, the rope winding shaft and the isolation sheet are integrally formed as the rope winding shaft transmission rod 131 (as shown in Figure 21 and Figure 22 The rotating member, the rope winding shaft and the isolation sheet are integrally formed as the rope winding shaft transmission rod 131 (as shown in Figure 22 and Figure 24 The rotating member, the rope winding shaft and the isolation sheet are integrally formed as the rope winding shaft transmission rod 131 (as shown in

[0106] It can be understood that the above differences can be selectively used or selectively applied to other embodiments, such as setting the lifting member in the first embodiment as a threaded cylinder, etc. The present application will not be described one by one.

[0107] The rope winding shaft can be provided with an isolation sheet or a penetrating hole at both ends in the embodiment, and when the isolation sheet or the penetrating hole is provided at the lower end of the rope winding shaft, the diameter of the rope winding shaft can be larger in the same space to increase the effective lifting distance of the lifting device. When the isolation sheet or the penetrating hole is provided 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 the direction of the change pulley and the traction direction need to be adjusted accordingly.

[0108] Embodiment eight

[0109] As shown in Figure 25 and Figure 26b Embodiment eight is basically the same as embodiment seven, and the same parts of the present application are not marked and described again. The difference between the two embodiments is that: 1. A belt transmission mechanism 134 (as shown in Figure 26b is arranged between the rotating motor 130' and the rope winding shaft transmission rod 131' (as shown in Figure 25 in the embodiment; 2. The rope winding shaft transmission rod 131' in the embodiment is not completely the same as the rope winding shaft transmission rod 131 in embodiment seven, please refer to Figure 26b and Figure 23 respectively. The threaded part of the rope winding shaft transmission rod 131' in the embodiment is a screw rod, and the threaded part of the rope winding shaft transmission rod 131 in embodiment seven is a worm. 3. The lifting member matched with the screw rod is a lifting sleeve 182, and the lifting sleeve 182 has only a threaded part (as shown in Figure 26a ) matched with the screw rod in the inside, and the threaded part is arranged at the upper end of the lifting member, and the lower end is a sleeve with a slightly larger inner diameter than the rope winding shaft.

[0110] It can be understood that the application can selectively use the above-mentioned differences (i.e. not all are arranged in the lifting control device, only part of the differences are arranged, and the differences of other embodiments are the same) or selectively apply the above-mentioned differences to other embodiments, such as the long barrel-shaped motor in other embodiments can be replaced by a rotating motor, and a belt transmission mechanism can also be added between the rotating motor and the rotating member.

[0111] Embodiment nine

[0112] As shown in Figures 27 to 30 , embodiment nine is basically the same as embodiment seven, and the same parts of the application are not marked and described again. The difference between the two embodiments is that: 1. The winding rope shaft transmission rod 131" in this embodiment is not completely the same as the winding rope shaft transmission rod 131 in embodiment seven. Please refer to Figure 28 and Figure 23 respectively. The threaded portion of the winding rope shaft transmission rod 131" in this embodiment is a lead screw, while the threaded portion of the winding rope shaft transmission rod 131 in embodiment seven is a screw rod; 2. The lifting member in this embodiment is a nut 135 matched with the lead screw; 3. A sleeve 136 is arranged below the nut 135, and a sleeve guide protrusion 136a is arranged on the side of the sleeve 136 (as shown in Figure 29 and Figure 30 ); 4. Two welded markers 136b are arranged at the lower end of the sleeve 136 (as shown in Figure 29 and Figure 30 ), and the change direction pulley is welded and fixed between two adjacent welded markers 136b.

[0113] It can be understood that the application can selectively use the above-mentioned differences, or selectively apply the above-mentioned differences to other embodiments, and the application will not be described again.

[0114] Embodiment ten

[0115] As shown in Figure 31 , embodiment ten is basically the same as embodiment nine, and the same parts of the application are not marked and described again. The difference between the two embodiments is that: the winding rope shaft 114 and the first rotating support seat (for clear illustration of the first bearing 137, Figure 31 the first bearing 137 is hidden) are arranged between the first bearing 137 (as shown in Figure 31 ), and / or the rotating member and the second rotating support seat 118 are arranged between the second bearing (not shown). It can be understood that those skilled in the art can selectively apply the above-mentioned differences to other embodiments or equivalent replacement schemes not recorded in the application without creative labor, and the application will not be described again.

[0116] Embodiment eleven

[0117] As shown in Figures 32 to 34 , some parts in embodiment eleven are configured the same as embodiment three, (the structure and principle of the lower half of the control lifting member are similar to embodiment two) 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 the first guide groove 113a is opened on the side away from the worm (as shown in Figure 9 , Figure 32 and Figure 33 ), the shape of the direction-changing pulley, the first rotating support seat 117 and the second rotating support seat 118 Figure 32 (not marked), etc.; 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 the follow-up rotating rod 138, (the follow-up rotating rod 138 is provided with a flat key, and the rope winding shaft 114 is provided with a sliding groove matched with the flat key of the follow-up rotating rod) and drives the rope winding shaft 114 to rotate synchronously, further, the follow-up rotating rod 138 in this embodiment is integrally formed with the worm 112 (as shown in Figure 34 ); 2, the outer edge of the lower end of the rope winding shaft 114 is provided with a sliding piece 184, and the upper end of the rack 113 is provided with a connecting duckbill 113b (as shown in Figure 32 and Figure 33 ), which is connected with the sliding piece 184 and drives the rope winding shaft 114 to lift synchronously; 3, the direction-changing pulley is fixed on the inner wall of the hollow support pipe through the wedge-shaped pad 183, in order to maximize the effective radius of the direction-changing pulley in limited space, the sliding part of the direction-changing pulley needs to be slightly offset to the diagonal line direction of the hollow support pipe, which causes a certain angle between the direction-changing pulley and the inner wall of the hollow support pipe, so the wedge-shaped pad 183 (as shown in Figure 32 ) is arranged for cooperation and installation, and riveting or welding can be used.

[0118] In this 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, and then the follow-up rotating rod 138 drives the rope winding shaft 114 to rotate synchronously; at the same time, the worm 112 drives the rack 113 to lift, and the rack 113 drives the rope winding shaft 114 to lift synchronously; that is, the rope winding shaft 114 will rotate while lifting under the driving of the worm 112 and the rack 113; since the direction-changing pulley is fixed, the lifting rope 116 after changing direction by the direction-changing pulley will be wound on or released from the rope winding shaft 114 with the rotation and lifting of the rope winding shaft 114, finally realizing the lifting of the controlled object.

[0119] Embodiment twelve

[0120] As shown in Figure 35As shown, the structure and principle of Embodiment Twelve are basically the same as those of Embodiment Eleven (the structure and principle of the lower part controlling the lifting of the lifting component are similar to those of Embodiment Five). The same components are not further indicated or described in this invention. The difference between the two embodiments is: 1. The lifting component is a triangular rack 139, with guide grooves 139a on both sides (e.g., ...). Figure 35 (as shown); 2. The second rotating support is a rhomboid rotating support 125 (please refer to...). Figure 35 and Figure 14 in Example 5 Figure 16 ).

[0121] It is understood that the present invention may selectively use the above distinctions, or selectively apply the above distinctions to other embodiments, and the present invention will not elaborate on them one by one.

[0122] Example 13

[0123] like Figure 36a and Figure 36b As shown, the structure and principle of Embodiment Thirteen are basically the same as those of Embodiment Eleven (the structure and principle of the lower part controlling the lifting of the lifting component are similar to those of Embodiment Six). The same components are not further indicated or described in this invention. The difference between the two embodiments is that the lifting component is a C-shaped duckbill tube 140 (e.g., Figure 36a As shown), the upper end of the C-shaped duckbill tube 140 is provided with a retaining protrusion 140a, and a duckbill groove 140b is formed between the retaining protrusion 140a and the C-shaped duckbill tube 140 (as shown). Figure 36b As shown), the C-shaped duckbill tube 140 has a basically the same structure as the C-shaped tube 126 in Embodiment Six (please refer to...). Figure 18 The difference is Figure 18 The upper end of the C-shaped cylinder is provided with a fixing protrusion, and the upper end of the C-shaped duckbill cylinder 140 in this embodiment is provided with a retaining protrusion 140a.

[0124] Example 14

[0125] like Figures 37 to 39 As shown, the principle of Embodiment Fourteen is basically the same as that of Embodiment Eleven (the structure and principle of the lower part controlling the lifting of the lifting component are similar to those of Embodiment Seven). The same components include: worm gear 112 and follower rotating rod 138 (e.g., Figure 34 As shown), the positions of the rope shaft 114, the first rotating support 117, the second rotating support 118, and the reversing pulley, etc.; compared with Embodiment Eleven, the special feature of this embodiment is: 1. The lifting component is a threaded cylinder 136' (please refer to Figure 382. In order to achieve the sliding connection between the lifting component 113 and the winding shaft 114, a sliding piece is added below the winding shaft 114 (this sliding piece is different from the isolation piece or isolation pad for fixing the lifting rope). Correspondingly, a groove for accommodating the sliding piece is provided at the top of the threaded cylinder 113 of the lifting component, and the semi-annular sealing pieces 141a and 141b (141b is not a necessary part) are fixed to the top of the threaded cylinder of the lifting component with screws. In this way, the sliding piece can be sealed in the groove at the top of the threaded cylinder of the lifting component 113. While the winding shaft 114 rotates, the sliding piece sealed in the groove at the top of the lifting component 113 slides and rotates synchronously, and is subjected to the pushing and pulling force of the lifting component 113, so that the winding shaft 114 rises and falls while rotating; 3. A sleeve guide protrusion is provided on the outer side of the threaded cylinder 136', and a guide limit strip 133' is adapted through the sleeve guide protrusion; 4. The driving source in this embodiment is a rotary motor 130 (please refer to embodiment seven), which will not be described again.

[0126] It is understood that the present invention may selectively use the above-mentioned differences (i.e., not all of them are set in the lifting control device, but only some of them are set, and the differences in other embodiments are similar), or selectively apply the above-mentioned differences to other embodiments.

[0127] Example 15

[0128] The structure and principle of Embodiment 15 are basically the same as those of Embodiment 14. The same components are not illustrated or described again in this invention. Figure 40 As shown, the differences between the two embodiments are: 1. The sealing plate 141 is a continuous ring, not a broken ring as in Embodiment Fourteen; 2. Because the outer diameter of the sliding plate at the lower end of the rope shaft 114 is larger than the inner diameter of the annular sealing plate 141, the annular sealing plate 141 cannot be installed. Therefore, the sliding plate on the rope shaft is separated into an independent sliding plate 143. The outer edge of the hollow tube at the upper end of the independent sliding plate 143 is threaded, and a matching thread is provided in the through hole at the lower end of the rope shaft, such as... Figure 40The independent sliding piece 143 is twisted to the bottom end of the rope winding shaft 114, and a small nut hole is formed in the threaded part of the tube wall of the bottom end through hole of the rope winding shaft. The independent sliding piece 143 can be locked by a screw, so that the independent sliding piece 141 can rotate synchronously with the rope winding shaft 114, and the independent sliding piece 141 is prevented from loosening during rotation and lifting. 4. The first rolling ball 144 is arranged between the upper end surface of the sliding piece and the lower end surface of the annular locking piece 141, and the annular track grooves matched with the first rolling ball are arranged on the two surfaces. The second rolling ball 145 is arranged between the lower end surface of the sliding piece and the top groove surface of the lifting piece threaded cylinder 113, and the annular track grooves matched with the second rolling ball are arranged on the two surfaces. 5. The biggest difference between the example and the embodiment fourteen is that two groups of rolling balls are added between the rope winding shaft 114 and the lifting piece threaded cylinder 113, so that the rolling friction is changed, and the sliding friction in the embodiment fourteen is changed. Compared with the embodiment fourteen, the friction between the rope winding shaft and the lifting piece in the example is smaller, the transmission efficiency is higher, and the energy saving is better.

[0129] Embodiment sixteen

[0130] As shown in Figure 41 and Figure 42 , the structure and principle of embodiment sixteen are basically the same as those of embodiment fourteen, and the structure and principle of the lower half part for controlling the lifting of the lifting piece are similar to those of embodiment eight. The same parts of the present application are not marked and described again. The difference between the two embodiments is that the screw 146 (as shown in Figure 41 and Figure 42 ) is used instead of the worm 112. The screw 146 and the follow-up rotating rod 138 can be integrally formed (as shown in Figure 42 ), or can be fixedly connected. The description of the guide limiting strip 133' and the sleeve 136' is detailed in embodiment fourteen. In addition, the present embodiment can also be improved based on embodiment fifteen. The lifting threaded cylinder has only one thread matched with the screw, and the thread is arranged at the lower end of the lifting piece. The upper end is a sleeve with an inner diameter slightly larger than the rope winding shaft.

[0131] Embodiment seventeen

[0132] As shown in Figure 43 , the structure and principle of embodiment seventeen are basically the same as those of embodiment fourteen. Except for the sleeve 136', the same parts of the present application are not marked and described again. The difference between the two embodiments is that 1. the screw rod 147 (as shown in Figure 43 ) is used instead of the worm 112, and the screw rod 147 and the follow-up rotating rod 138 can be integrally formed or fixedly connected. 2. The nut 148 (as shown in Figure 43 ) matched with the screw rod 147 is additionally arranged in the present embodiment. 3. The sleeve 136' is replaced by the hollow sleeve 149 (as shown in Figure 43As shown), the nut 148 (with a screw) is connected to the end of the hollow sleeve 149 away from the follower rotating rod 138, and the hollow sleeve 149 does not need to be threaded. In addition, this embodiment can also be improved based on embodiment fifteen.

[0133] In addition, this embodiment may also omit the nut 148 and instead choose to open the thread inside the hollow sleeve, or make other adaptive adjustments. It is understood that the solution obtained by simple adjustment is also within the protection scope of this invention.

[0134] Example 18

[0135] like Figure 44 and Figure 45 As shown, Embodiment 18 is basically the same as Embodiment 11 in terms of structure and principle. For example, both use a long cylindrical motor to drive the worm gear to rotate, and then the worm gear drives the rack to rise and fall. This embodiment also has the same feature as Embodiment 11: the rope shaft rises and falls under the drive of the rack, and also rotates. The special feature of this embodiment is that it also provides a stationary threaded rod 150, which is fixed (the stationary threaded rod 150 is held in place by the first fixed support seat 117', and the first fixed support seat 117' is fixed to the hollow support tube), and its outer edge is provided with an external thread. The rope shaft 114' is provided with an internal thread that matches the stationary threaded rod 150.

[0136] In this embodiment, a long cylindrical motor drives a worm gear to rotate, which in turn drives a rack 113 to rise and fall. The rack 113 then drives a rope-winding shaft 114' to rise and fall. Since the stationary threaded rod 150 is fixed and meshes with the rope-winding shaft 114', the rope-winding shaft 114' will rotate (clockwise or counterclockwise) while rising and falling. With the reversing pulley fixed, the lifting rope will either wind around the rope-winding shaft 114' or be released from it, thereby achieving the lifting and falling of the controlled object.

[0137] The differences between this example and Example 11 are as follows: 1. Not only is the rope shaft separated from the rotating component, but the stationary threaded rod is also separated from the rotating component, so both need to be fixed separately; 2. The stationary threaded rod is independently fixed with two support seats. The stationary threaded rod has a fixing groove at both ends, and the support seats at both ends have a corresponding fixing groove. Finally, it is locked in place with a key that matches the fixing groove; 3. Each end of the rotating worm is fitted with a support seat. This support seat does not have a fixing groove, so the rotating component can rotate smoothly; 4. Furthermore, the support seat below the stationary threaded rod and the support seat at the upper end of the rotating worm can be removed. Then, the lower end of the stationary threaded rod is fitted into the cylindrical groove at the upper end of the worm, which eliminates the need for an extra support seat. At the same time, both are fixed in the same axial direction (because the lifting rack in this example has an open enclosure around the rotating worm, it does not reinforce the worm. This connection method is not very strong and requires appropriate enclosure reinforcement at the connection point).

[0138] Example 19

[0139] like Figure 46 As shown, the structure and principle of Embodiment Nineteen are basically the same as those of Embodiment Twelve. The same components are not further indicated or described in this invention. The difference between the two embodiments is: 1. The lifting component is a triangular rack 139 (e.g., Figure 46 and Figure 35 (as shown); 2. The second rotating support is a rhomboid rotating support (please refer to...). Figure 46 , Figure 35 And Figure 14 in Example 5 Figure 16 ).

[0140] Example 20

[0141] like Figure 47 As shown, the structure and principle of Embodiment 20 and Embodiment 13 are basically the same. The same components are not further indicated or described in this invention. The difference between the two embodiments is that the lifting component is a C-shaped duckbill cylinder 140 (e.g., Figure 47 As shown, you can also refer to the following: Figure 36a Due to the adoption of a semi-enclosed C-shaped duckbill cylinder for the lifting component, the shape of the support base has been adapted accordingly.

[0142] Example 21

[0143] like Figure 48a and Figure 48b As shown, the structure and principle of Embodiment 21 are basically the same as those of Embodiment 14. The same components are not further indicated or described in this invention (please refer to [reference needed] for specific component arrangement and mating relationships). Figure 48b The difference between the two embodiments is: 1. The lifting component is a 136' sleeve (e.g. Figure 48a(As shown), please refer to Embodiment Fourteen; 2. The connection method between the rotating worm and the stationary threaded rod is different. Unlike the previous method where the rotating part and the stationary threaded rod were fixed separately, this embodiment uses a fully enclosed threaded cylinder lifting component. Therefore, the support seat at the connection between the rotating part and the stationary threaded rod needs to be removed, namely the support seat below the stationary threaded rod and the support seat at the upper end of the rotating part. Then, the lower end of the stationary threaded rod is fitted into the receiving groove opened at the top of the rotating worm; 3. Due to the reinforcement of the fully enclosed lifting threaded cylinder and the guide limit strip 133', the worm and the stationary threaded rod are always in the same axial direction. This connection method is relatively stable; 4. A sleeve guide protrusion is opened on the outside of the sleeve 136', and the guide limit strip 133' is adapted through the sleeve guide protrusion; 5. The driving source in this embodiment is a rotating motor 130 (please refer to Embodiment Seven), which will not be described again.

[0144] It is understood that the present invention may selectively use the above-mentioned differences (i.e., not all of them are set in the lifting control device, but only some of them are set, and the differences in other embodiments are similar), or selectively apply the above-mentioned differences to other embodiments.

[0145] Example 22

[0146] Example 22 is basically the same in structure and principle as Example 21. The same components are not illustrated or described again in this invention. The difference between the two examples is that the screw 146 (e.g.) is used. Figure 49 (As shown) replaced the worm gear.

[0147] Example 23

[0148] The structure and principle of Embodiment 23 are basically the same as those of Embodiment 17. The same components are not illustrated or described again in this invention. The difference between the two embodiments is: 1. Using lead screw 147 (e.g. Figure 50 The worm gear is replaced by a lead screw 147 (as shown in the diagram). The connection between the lead screw 147 and the stationary threaded rod is as follows: the lower end of the stationary threaded rod is fitted into the cylindrical groove at the top of the rotating worm gear. Due to the reinforcement of the fully enclosed hollow sleeve 149 of the lifting component and the guide limit strip, this connection method is relatively stable. 2. In this embodiment, a nut 148 adapted to the lead screw 147 (e.g., ...) is added. Figure 51a (as shown); 3. Replace sleeve 136' with hollow sleeve 149 (as shown). Figure 51a As shown), and nut 148 is connected to the end of hollow sleeve 149 near the drive source, and no internal threads are required (as shown). Figure 51b (As shown).

[0149] In addition, the embodiment can also not be provided with the nut 148, and a thread is selected to be formed in the hollow sleeve, or other adaptive adjustment can be performed, and it can be understood that the obtained scheme after simple adjustment also belongs to the protection scope of the application.

[0150] It should be understood that the application of the application is not limited to the above examples, and those skilled in the art can improve or change according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the application.

Claims

1. A lift control device, characterized by, The application relates to a lifting control device, which comprises a driving source, a rotating member, a winding rope shaft, a lifting member, a direction-changing pulley and a lifting rope. The driving source, the rotating member and the lifting member are sequentially connected, the driving source is used for driving the rotating member to rotate, and the rotating member is used for driving the lifting member to lift; the winding rope shaft is connected with the lifting member and performs a rotating motion while synchronously lifting with the lifting member; One end of the lifting rope is wound on the winding rope shaft, the middle part of the lifting rope passes through the direction-changing pulley, and the other end of the lifting rope is used for connecting a controlled object; The lifting control device further comprises a hollow support pipe, the rotating member, the winding rope shaft, the lifting member, one end of the lifting rope and the direction-changing pulley are arranged in the hollow support pipe; or the lifting control device is arranged in a hollow support pipe of a mechanical device; A guide groove is arranged on one side of the lifting member facing the hollow support pipe, the hollow support pipe is provided with a guide protrusion matched with the guide groove; or a guide limiting strip is fixed on the inner wall of the hollow support pipe, the guide limiting strip is provided with a guide protrusion matched with the guide groove or the guide limiting strip is matched with the guide groove. The lifting control device further comprises a fixed threaded rod, the winding rope shaft synchronously lifts with the lifting member and simultaneously rotates around the fixed threaded rod; and the direction-changing pulley is fixed.

2. The lift control device of claim 1, wherein The winding rope shaft is provided with a penetrating hole, and the lifting rope is wound on the winding rope shaft after passing through the penetrating hole.

3. The lift control device of claim 1, wherein A first fixed support seat is arranged on the outer edge of the upper end of the fixed threaded rod, the first fixed support seat is provided with a fixed groove, and the outer edge of the fixed threaded rod is provided with a fixed protrusion matched with the fixed groove; a second rotating support seat is arranged on the outer edge of the rotating member, and the first fixed support seat and the second rotating support seat are fixed on the hollow support pipe.

4. The lift control device of claim 1, wherein The direction-changing pulley comprises a connecting part and a sliding part, the connecting part is used for connecting a fixed source member for fixing the direction-changing pulley, and the sliding part comprises a fan-shaped sliding base provided with at least one rolling wheel.

5. The lift control device of claim 1, wherein The upper end and / or the lower end of the winding rope shaft is provided with a separation sheet or a separation gasket, the separation sheet is provided with a rope penetrating hole, and the lifting rope passes through the rope penetrating hole; the separation gasket comprises an open hole round sheet and a separation sheet, the open hole round sheet is provided with a rope penetrating hole, the lifting rope passes through the rope penetrating hole, and the separation sheet is located on the side of the open hole round sheet away from the direction-changing pulley.

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