Dynamic lifting mechanism

Abstract

The invention relates to the technical field of lifting mechanisms and discloses a dynamic lifting mechanism which comprises a rack and a connecting frame fixedly connected to the outer surface of the rack. The base is used for supporting the lifting mechanism, by arranging the base, the whole device can be supported, the bottom supporting area can be enlarged through adjustment, and then the stability of the device is improved; the rotating mechanism is used for enabling the screw rod to generate a rotating effect and driving the lifting equipment to vertically lift, and by arranging the rotating mechanism, rotating force can be generated during working, so that the screw rod can rotate, and when the screw rod rotates, the lifting equipment can generate an effect of vertically moving up and down; and the lifting mechanism is used for being driven by the rotating mechanism to vertically ascend and descend on the outer surface of the lead screw, by arranging the lifting mechanism, the objects can be moved upwards and lifted, and the effects that transportation is convenient, and damaged steel balls inside are convenient to replace are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting mechanisms, in particular to a dynamic lifting mechanism. Background Art

[0002] A lifting mechanism is a mechanical device used to move objects or people vertically or obliquely. It is widely used in industrial production, construction, logistics and transportation, and other fields. Its core function is to achieve smooth lifting and lowering of loads through mechanical, hydraulic or electric drive systems to meet the needs of different scenarios. Common lifting mechanisms include scissor lifts, hydraulic lifts, chain lifts, etc. The design of lifting mechanisms usually considers factors such as load capacity, lifting height, operating speed and safety. The hydraulic lifting mechanism is driven by a hydraulic cylinder and has the characteristics of strong load capacity and smooth operation. It is suitable for the lifting of heavy equipment; the electric lifting mechanism is driven by a motor and has the characteristics of high precision and fast response. It is often used in precision equipment or automated production lines. In addition, the lifting mechanism is usually equipped with safety devices such as limit switches, overload protection, emergency brakes, etc. to ensure safe operation.

[0003] Many lifting mechanisms on the market have some limitations in design, especially in terms of storage convenience and maintainability. Many lifting mechanisms are difficult to store quickly due to their complex structure or large size, especially in environments with limited space. For example, although the scissor lift platform has high stability, it occupies a large area after unfolding and requires a large space when stored, which limits its application in compact environments. Secondly, although the lifting mechanism based on the ball screw principle has the advantages of high precision and high efficiency, the maintenance and replacement of its internal steel balls is a problem. The ball screw transmits motion by rolling the steel ball between the screw and the nut. After long-term use, the steel ball may be damaged due to wear, contamination or insufficient lubrication. However, due to the precise structure of the ball screw, the removal and replacement of the steel ball requires professional tools and techniques, which is difficult for ordinary users to do by themselves. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dynamic lifting mechanism, including a frame, and a connecting frame fixedly connected to the outer surface of the frame;

[0005] The base is used to support the lifting mechanism. By setting the base, the entire device can be supported, and the bottom support area can be increased by adjustment, thereby increasing the stability of the device;

[0006] The rotating mechanism is used to make the screw rod rotate and drive the lifting device to move vertically. By setting the rotating mechanism, a rotating force can be generated during operation, thereby making the screw rod rotate, and when the screw rod rotates, the lifting device can move vertically up and down;

[0007] The lifting mechanism is used to lift vertically on the outer surface of the screw rod driven by the rotating mechanism. By setting the lifting mechanism, when the rotating mechanism rotates, the lifting mechanism can produce an up and down movement effect on the outer surface of the screw rod, thereby enabling the object to move upward and complete the lifting;

[0008] The support mechanism is used to lift the bottom of the object to be lifted, and the limiting ring is arranged on the outer surface of the support mechanism. By setting the support mechanism, when the lifting mechanism is moved upward by the rotating mechanism, the support mechanism can support the object to be lifted, and the device can be folded during transportation so that the device can be easily stored;

[0009] The base is fixedly connected to the outer surface of the frame, the rotating mechanism is fixedly connected to the outer surface of the frame through a connecting frame, the lifting mechanism is sleeved on the outer surface of the rotating mechanism, and the dragging and supporting mechanism is connected to the lifting mechanism through a limiting ring.

[0010] Preferably, the fixing frame is fixedly connected to the outer surface of the frame, the outer surface of the fixing frame is fixedly connected to the supporting frame, the upper surface of the fixing frame is fixedly connected to a limit box, the inner cavity of the limit box is slidably connected to a sliding plate, and the lower surface of the sliding plate is fixedly connected to a bottom plate. By setting the limit box, the sliding plate can be limited, so that the sliding plate can produce lateral movement in the inner cavity of the limit box, and then the bottom plate can produce expansion and contraction in the inner cavity of the limit box, thereby changing the effect of the contact area between the device and the ground, so that the device can be stably supported on the ground.

[0011] Preferably, the rotating mechanism includes a stepper motor and a first limit rod, the stepper motor is fixedly connected to the lower surface of the connecting frame, the output end of the stepper motor is equipped with a rotating rod through a coupling, the top of the rotating rod is fixedly connected to a reciprocating screw rod, the first limit rod is fixedly connected to the upper surface of the frame, and the top end of the first limit rod is fixedly connected to the top frame.

[0012] Preferably, a support rod is fixedly connected to the top surface of the inner cavity of the top frame, a rolling bearing is fixedly connected to the end of the support rod, a first rotating column is fixedly connected to the inner ring of the rolling bearing, the bottom end of the first rotating column is fixedly connected to the top of the reciprocating screw rod, the outer side surface of the top frame is fixedly connected to the first limiting sleeve, the inner cavity of the first limiting sleeve is rotatably connected to the first rotating block, the first rotating block is fixedly connected to a bent rod on one side of the outer surface of the first limiting sleeve, the end of the bent rod away from the first rotating block is fixedly connected to a positioning frame, and the inner cavity of the positioning frame is fixedly connected to a cushion.

[0013] Preferably, the lifting mechanism includes a sliding sleeve, which is slidably connected to the outer surface of the first limit rod, the outer surface of the sliding sleeve is fixedly connected to a fixed plate, the outer surface of the fixed plate is fixedly connected to a blocking plate, the side of the fixed plate away from the blocking plate is fixedly connected to a connecting block, the side of the connecting block away from the fixed plate is fixedly connected to a sliding box, the outer surface of the sliding box is fixedly connected to a support frame, the outer surface of the support frame is penetrated by a carbon rod, the carbon rod penetrates the sliding box, and the carbon rod is frictionally adapted to the outer surface of the reciprocating screw.

[0014] Preferably, a threaded ring is fixedly connected to the inner surface of the support frame, a locking ring is fixedly connected to the inner wall of the sliding box, and a limiting mechanism is movably connected to the inner cavity of the locking ring. The limiting mechanism includes an installation box, which is movably connected to the locking ring, and a mounting plate is fixedly connected to the outer surface of the installation box. A threaded rod is threadedly connected to the inner cavity of the mounting plate, and the threaded rod is threadedly connected to the inner cavity of the threaded ring. The inner wall of the installation box is fixedly connected to a track box.

[0015] Preferably, a second limit rod is fixedly connected to a side of the track box away from the inner wall of the mounting box, the outer surface of the second limit rod is rotatably connected to a rotating frame, the end of the rotating frame is fixedly connected to a wrapping frame, the end of the wrapping frame is fixedly connected to a locking sleeve, the inner cavity of the locking sleeve is rotatably connected to a steel ball, the steel ball is frictionally matched with the thread groove of the reciprocating screw, the outer surface of the wrapping frame is fixedly connected to a fixed block, and a first spring is fixedly connected between opposite surfaces of the fixed block.

[0016] Preferably, a limit plate is slidably connected to the inner cavity of the track box, and a blocking block is fixedly connected to the outer surface of the limit plate. The blocking block is extruded and adapted to the outer surface of the wrapping frame, and a pull plate is fixedly connected to the bottom end of the limit plate. A limit ring is sleeved on the outer surface of the pull plate, and the limit ring is fixedly connected to the inner wall of the installation box, and an extrusion plate is fixedly connected to the outer side surface of the limit plate, and a second spring is fixedly connected between the opposite surfaces of the extrusion plate and the limit ring.

[0017] Preferably, the limiting ring is fixedly connected to the outer surface of the fixed plate, and the support mechanism includes a rotating bar, which is rotatably connected to the inner cavity of the limiting ring, and the upper surface of the rotating bar is fixedly connected to the support plate, and the outer side surface of the support plate is fixedly connected to a second limiting sleeve, and the inner cavity of the second limiting sleeve is rotatably connected to a second rotating block, and the second rotating block is fixedly connected to a sliding ring on the side away from the support plate, and the inner ring of the sliding ring is slidably connected to a straight rod, and the top of the straight rod is fixedly connected to a positioning column, which is extruded and adapted to the cushion.

[0018] Preferably, the towing mechanism also includes a limit plate, which is fixedly connected to the outer surface of the frame, and the outer surface of the limit plate is rotatably connected to a rotating sleeve, and the rotating sleeve is fixedly connected to a first connecting rod on a side away from the limit plate, and the end of the first connecting rod is fixedly connected to the limit tube, and a sliding column is slidably connected to the inner cavity of the limit tube, and the end of the sliding column is fixedly connected to a third spring, and the end of the sliding column away from the third spring is fixedly connected to a second connecting rod, and the end of the second connecting rod is fixedly connected to a second rotating column, and the outer surface of the second rotating column is rotatably connected to a rotating tube, and the rotating tube is fixedly connected to the bottom end of the straight rod.

[0019] The present invention provides a dynamic lifting mechanism, which has the following beneficial effects:

[0020] 1. The dynamic lifting mechanism can generate a rotating force when working by setting a rotating mechanism, thereby enabling the screw rod to rotate, and when the screw rod rotates, the lifting device can produce an effect of vertical up and down movement.

[0021] Second, the dynamic lifting mechanism, by setting up a lifting mechanism, can make the lifting mechanism produce an up and down movement effect on the outer surface of the screw rod when the rotating mechanism rotates, thereby enabling the object to move upward and complete the lifting.

[0022] Third, the dynamic lifting mechanism, by providing a towing mechanism, can enable the towing mechanism to tow the towed items when the lifting mechanism is moved upward by the rotating mechanism, and can fold the device during transportation so that the device can be easily stored.

[0023] Fourth, the dynamic lifting mechanism can limit the first rotating column by setting a rolling bearing, so that the first rotating column can rotate more stably, and the first rotating column can be connected with the reciprocating screw rod to make the reciprocating screw rod rotate more stably. By setting a first limiting sleeve, the first rotating block can be limited so that the first rotating block can rotate in the inner cavity of the first limiting sleeve, thereby adjusting the position of the bent rod and the positioning frame to prevent the bent rod from contacting the support mechanism and being unable to be folded and stored when the device is stored, thereby saving the storage space of the device.

[0024] 5. The dynamic lifting mechanism is provided with a carbon rod. When the sliding box moves vertically on the outer surface of the reciprocating screw, the carbon rod can contact the groove of the reciprocating screw, thereby scraping off the dust blocking the groove of the reciprocating screw and applying carbon powder to the groove of the reciprocating screw, thereby reducing the friction of the groove of the reciprocating screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the external structure of a dynamic lifting mechanism of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure expansion of a dynamic lifting mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the base structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the rotating mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the local structure of the rotating mechanism of the present invention;

[0030] Figure 6 It is a schematic diagram of the top structure of the rotating mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the lifting mechanism structure of the present invention;

[0032] Figure 8 It is a schematic diagram of the partial structure of the lifting mechanism of the present invention;

[0033] Fig. 9 It is a schematic diagram of the cross-sectional structure of the lifting mechanism of the present invention;

[0034] Fig.10 It is a schematic diagram of the structure of the limiting mechanism of the present invention;

[0035] Fig.11 It is a schematic diagram of the local structure of the limiting mechanism of the present invention;

[0036] Fig.12 It is a schematic diagram of a partial cross-sectional structure of the limiting mechanism of the present invention;

[0037] Fig.13 It is a schematic diagram of the structure of the towing and supporting mechanism of the present invention;

[0038] Fig.14 It is a schematic diagram of the partial cross-sectional structure of the towing and supporting mechanism of the present invention.

[0039] In the figure: 1, frame; 2, base; 3, connecting frame; 4, rotating mechanism; 5, lifting mechanism; 6, limiting ring; 7, dragging mechanism; 21, fixed frame; 22, supporting frame; 23, limiting box; 24, sliding plate; 25, bottom plate; 41, stepping motor; 42, rotating rod; 43, reciprocating screw rod; 44, first limiting rod; 45, top frame; 46, supporting rod; 47, rolling bearing; 48, first rotating column; 49, first limiting sleeve; 410, first rotating block; 411, bending rod; 412, clamping frame; 413, cushion; 51, sliding sleeve; 52, fixed plate; 53, connecting block; 54, sliding box; 55, blocking plate; 56, limiting mechanism; 57, clamping ring; 58, supporting frame; 59, carbon rod; 510, threaded ring; 561, installation box; 562 , mounting plate; 563, threaded rod; 564, track box; 565, second limit rod; 566, rotating frame; 567, wrapping frame; 568, positioning sleeve; 569, steel ball; 5610, fixing block; 5611, first spring; 5612, limit plate; 5613, blocking block; 5614, extrusion plate; 5615, limit ring; 5616, pull plate; 5617, second spring; 71, rotating bar; 72, support plate; 73, second limit sleeve; 74, second rotating block; 75, sliding ring; 76, straight rod; 77, positioning column; 78, limit plate; 79, rotating sleeve; 710, first connecting rod; 711, limit tube; 712, sliding column; 713, third spring; 714, second connecting rod; 715, second rotating column; 716, rotating tube. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0041] like Figure 1-Figure 14 As shown, the present invention provides a technical solution: a dynamic lifting mechanism, comprising a frame 1, and a connecting frame 3 fixedly connected to the outer surface of the frame 1;

[0042] The base 2 is used to support the lifting mechanism. By setting the base 2, the entire device can be supported, and the bottom support area can be increased by adjustment, thereby increasing the stability of the device;

[0043] The rotating mechanism 4 is used to make the screw rod rotate and drive the lifting device to move vertically. By setting the rotating mechanism 4, a rotating force can be generated during operation, so that the screw rod can rotate, and when the screw rod rotates, the lifting device can move vertically up and down;

[0044] The lifting mechanism 5 is used to vertically lift up and down on the outer surface of the screw rod driven by the rotating mechanism 4. By setting the lifting mechanism 5, when the rotating mechanism 4 rotates, the lifting mechanism 5 can produce an effect of moving up and down on the outer surface of the screw rod, thereby enabling the object to move upward and complete the lifting;

[0045] The support mechanism 7 is used to lift the bottom of the object to be lifted, and the limiting ring 6 is arranged on the outer surface of the support mechanism 7. By setting the support mechanism 7, when the lifting mechanism 5 is moved upward by the rotating mechanism 4, the support mechanism 7 can support the object to be lifted, and the device can be folded during transportation so that the device can be easily stored;

[0046] The base 2 is fixedly connected to the outer surface of the frame 1, the rotating mechanism 4 is fixedly connected to the outer surface of the frame 1 through the connecting frame 3, the lifting mechanism 5 is sleeved on the outer surface of the rotating mechanism 4, and the dragging mechanism 7 is connected to the lifting mechanism 5 through the limiting ring 6.

[0047] The base 2 includes a fixing frame 21, which is fixedly connected to the outer surface of the frame 1, and a supporting frame 22 is fixedly connected to the outer surface of the fixing frame 21. A limiting box 23 is fixedly connected to the upper surface of the fixing frame 21, and a sliding plate 24 is slidably connected to the inner cavity of the limiting box 23. A bottom plate 25 is fixedly connected to the lower surface of the sliding plate 24. By setting the limiting box 23, the sliding plate 24 can be limited, so that the sliding plate 24 can produce lateral movement in the inner cavity of the limiting box 23, and then the bottom plate 25 can produce expansion and contraction in the inner cavity of the limiting box 23, thereby changing the effect of changing the contact area between the device and the ground, so that the device can be stably supported on the ground.

[0048] The rotating mechanism 4 includes a stepper motor 41 and a first limiting rod 44. The stepper motor 41 is fixedly connected to the lower surface of the connecting frame 3. The output end of the stepper motor 41 is installed with a rotating rod 42 through a coupling. The top of the rotating rod 42 is fixedly connected to the reciprocating screw rod 43. The first limiting rod 44 is fixedly connected to the upper surface of the frame 1. The top of the first limiting rod 44 is fixedly connected to the top frame 45. By setting the stepper motor 41, the rotating rod 42 can be rotated after the power is connected and the switch is turned on, thereby causing the reciprocating screw rod 43 to rotate. The top surface of the inner cavity of the top frame 45 is fixedly connected with a supporting rod 46. The end of the supporting rod 46 is fixedly connected with a rolling bearing 47. The inner ring of the rolling bearing 47 is fixedly connected with a first rotating column 48. The bottom end of the first rotating column 48 is fixedly connected to the top of the reciprocating screw rod 43. The outer side surface of the top frame 45 is fixedly connected with a first limiting sleeve 49. 9 is rotatably connected to a first rotating block 410 at the inner cavity of the first limiting sleeve 49, and the first rotating block 410 is fixedly connected to a bent rod 411 on one side of the outer surface of the first limiting sleeve 49, and the end of the bent rod 411 away from the first rotating block 410 is fixedly connected to a locking frame 412, and the inner cavity of the locking frame 412 is fixedly connected to a soft cushion 413, and by arranging a rolling bearing 47, the first rotating column 48 can be limited so that the first rotating column 48 can rotate more stably, and by connecting the first rotating column 48 with the reciprocating screw 43, the rotation of the reciprocating screw 43 can be more stably, and by arranging the first limiting sleeve 49, the first rotating block 410 can be limited so that the first rotating block 410 can rotate in the inner cavity of the first limiting sleeve 49, and then the positions of the bent rod 411 and the locking frame 412 are adjusted to prevent the bent rod 411 from contacting the support mechanism 7 and being unable to be folded and stored when the device is stored, thereby saving the storage space of the device.

[0049] The lifting mechanism 5 includes a sliding sleeve 51, which is slidably connected to the outer surface of the first limiting rod 44, the outer surface of the sliding sleeve 51 is fixedly connected to a fixing plate 52, the outer surface of the fixing plate 52 is fixedly connected to a blocking plate 55, the side of the fixing plate 52 away from the blocking plate 55 is fixedly connected to a connecting block 53, the side of the connecting block 53 away from the fixing plate 52 is fixedly connected to a sliding box 54, the outer surface of the sliding box 54 is fixedly connected to a supporting frame 58, the outer surface of the supporting frame 58 is penetrated by a carbon rod 59, the carbon rod 59 penetrates the sliding box 54, and the carbon rod 59 is frictionally adapted to the outer surface of the reciprocating screw rod 43. By setting the sliding sleeve 51, can slide on the outer surface of the first limit rod 44, so that the sliding sleeve 51 and the fixed plate 52 can produce the effect of vertical up and down movement, and can move vertically stably. By setting the blocking plate 55, it can prevent the support plate 72 from rotating too much and provide an upward supporting force, so that the device can support heavier objects. By setting the carbon rod 59, when the sliding box 54 moves vertically on the outer surface of the reciprocating screw 43, the carbon rod 59 can contact with the groove of the reciprocating screw 43, and then while scraping off the dust blocking the groove of the reciprocating screw 43, carbon powder is applied to the groove of the reciprocating screw 43, thereby reducing the friction at the groove of the reciprocating screw 43.

[0050] The inner surface of the support frame 58 is fixedly connected with a threaded ring 510, the inner wall of the sliding box 54 is fixedly connected with a positioning ring 57, the inner cavity of the positioning ring 57 is movably connected with a limiting mechanism 56, and the limiting mechanism 56 includes a mounting box 561, and the mounting box 561 is movably connected to the positioning ring 57. The outer surface of the mounting box 561 is fixedly connected with a mounting plate 562, and the inner cavity of the mounting plate 562 is threadedly connected with a threaded rod 563, and the threaded rod 563 is threadedly connected to the inner cavity of the threaded ring 510. The inner wall of the mounting box 561 is fixedly connected with a track box 564. By setting the positioning ring 57, the limiting mechanism 56 can be positioned so that the limiting mechanism 56 can be accurately positioned with the sliding box 54. The two rail boxes 561 and 564 are positioned together, and by setting a mounting plate 562 and a threaded rod 563, they can cooperate with the threaded ring 510, so that after the mounting box 561 is connected to the sliding box 54, the threaded rod 563 can be rotated into the inner cavity of the threaded ring 510, so that the mounting box 561 and the sliding box 54 are tightly connected together, and the side of the track box 564 away from the inner wall of the mounting box 561 is fixedly connected with a second limiting rod 565, and the outer surface of the second limiting rod 565 is rotatably connected with a rotating frame 566, and the end of the rotating frame 566 is fixedly connected with a wrapping frame 567, and the end of the wrapping frame 567 is fixedly connected with a locking sleeve 568, and the inner cavity of the locking sleeve 568 is rotatably connected with a steel ball 569, and the steel ball 56 9 is frictionally matched with the thread groove of the reciprocating screw 43. The outer surface of the wrapping frame 567 is fixedly connected with a fixing block 5610. The opposite surfaces of the fixing block 5610 are fixedly connected with a first spring 5611. By setting the second limiting rod 565, the rotating frame 566 can be limited so that the rotating frame 566 can produce a stable rotation effect at both ends, thereby changing the angle between the two wrapping frames 567. By setting the positioning sleeve 568, the steel ball 569 can be wrapped and limited so that the steel ball 569 can rotate when moving at the thread groove of the reciprocating screw 43, thereby reducing friction and increasing the operating time of the device. By setting the first spring 5611, a pulling force can be generated, thereby making the two The wrapping frame 567 and the locking sleeve 568 can be subjected to relative pulling force, so that the steel ball 569 can be wrapped. There are several steel balls 569, and their vertical heights in the inner cavity of the installation box 561 are different. They are evenly in contact with the thread groove on the outer surface of the reciprocating screw 43. The inner cavity of the track box 564 is slidably connected with a limit plate 5612, and the outer surface of the limit plate 5612 is fixedly connected with a blocking block 5613. The blocking block 5613 is extruded and adapted with the outer surface of the wrapping frame 567. The bottom end of the limit plate 5612 is fixedly connected with a pull plate 5616, and the outer surface of the pull plate 5616 is sleeved with a limit ring 5615, and the limit ring 5615 is fixedly connected to the inner wall of the installation box 561.The outer side surface of the limit plate 5612 is fixedly connected with an extrusion plate 5614, and the second spring 5617 is fixedly connected between the opposite surface of the extrusion plate 5614 and the limit ring 5615. By setting the limit plate 5612 and the blocking block 5613, the wrapping frame 567 can be blocked to prevent the wrapping frame 567 from rotating, thereby ensuring that the steel ball 569 will not escape from the inner cavity of the locking sleeve 568 during operation. By setting the limiting ring 5615, the pull plate 5616 can be limited so that the pull plate 5616 can drive the limit plate 5612 and the blocking block 5613 to move vertically up and down when being pulled. By setting the extrusion plate 5614 and the second spring 5617, an upward extrusion force can be applied to the pull plate 5616 and the limit plate 5612, so that the pull plate 5616 will not have a tendency to move downward when it is not pulled downward by the operator.

[0051] The limiting ring 6 is fixedly connected to the outer surface of the fixing plate 52, and the support mechanism 7 includes a rotating bar 71, and the rotating bar 71 is rotatably connected to the inner cavity of the limiting ring 6. The upper surface of the rotating bar 71 is fixedly connected to the support plate 72, and the outer side surface of the support plate 72 is fixedly connected to the second limiting sleeve 73, and the inner cavity of the second limiting sleeve 73 is rotatably connected to the second rotating block 74, and the second rotating block 74 is fixedly connected to the side away from the support plate 72 with a sliding ring 75, and the inner ring of the sliding ring 75 is slidably connected to a straight rod 76, and the top of the straight rod 76 is fixedly connected to a positioning column 77, and the positioning column 77 is fixedly connected to the positioning column 77. 7 is pressed and adapted with the soft cushion 413. By setting the rotating bar 71, it can rotate in the inner cavity of the limiting ring 6, thereby changing the angle of the dragging plate 72, so as to facilitate the storage work of the device during transportation. By setting the second limiting sleeve 73, the second rotating block 74 can be limited, so that the sliding ring 75 and the dragging plate 72 can produce an angle rotation, so that when the angle between the straight rod 76 and the dragging plate 72 changes, the sliding ring 75 always rotates with the outer side of the dragging plate 72 as the vertex. The dragging mechanism 7 also includes a limiting plate 78, and the limiting plate 78 is fixedly connected to the outer surface of the frame 1. The outer surface of the limit plate 78 is rotatably connected with a rotating sleeve 79, and the first connecting rod 710 is fixedly connected to the side of the rotating sleeve 79 away from the limit plate 78. The end of the first connecting rod 710 is fixedly connected to the limit tube 711, and the inner cavity of the limit tube 711 is slidably connected with a sliding column 712, and the end of the sliding column 712 is fixedly connected to a third spring 713, and the end of the sliding column 712 away from the third spring 713 is fixedly connected to a second connecting rod 714, and the end of the second connecting rod 714 is fixedly connected to a second rotating column 715. The outer surface of the second rotating column 715 is rotatably connected to the limit tube 711. The rotating tube 716 is dynamically connected and fixedly connected to the bottom end of the straight rod 76. By setting a limit plate 78, the rotating sleeve 79 can be limited so that the rotating sleeve 79 can rotate on its outer surface. By setting a limit tube 711, when the angle between the straight rod 76 and the support plate 72 changes, the sliding column 712 can move in the inner cavity of the limit tube 711, so that the first connecting rod 710 and the second connecting rod 714 are still connected together. When the device is working, the limit tube 711 will be squeezed with the support frame 22, thereby preventing the limit tube 711 from being squeezed and shaking.

[0052] Working principle: During use, when the device needs to be stored, the operator first rotates the bent rod 411 to make the positioning frame 412 at the end at the highest point of the device, then pulls the support plate 72 away from one end of the fixed plate 52, and applies an upward pulling force, so that the support plate 72 can be perpendicular to the ground. At this time, the sliding column 712 will slide into the inner cavity of the limiting tube 711, and then the sliding plate 24 is pushed into the limiting box 23 to complete the storage of the device; when the device needs to work, the device is unfolded and placed at the position where it needs to work, and the items are placed on the upper surface of the support plate 72, and then the stepping motor 41 is connected to the power supply and the switch is turned on, so that the rotating rod 42 drives the reciprocating screw 43 to rotate. During the rotation of the reciprocating screw 43, due to the steel ball 569 and the reciprocating The contact of the groove of the screw rod 43 will cause the steel ball 569 to rotate at the thread groove of the reciprocating screw rod 43 and be subjected to an upward extrusion force. Under the rolling and extrusion of multiple steel balls 569, the sliding box 54 drives the connecting block 53 and the fixed plate 52 to have an upward movement trend, thereby causing the blocking plate 55 and the support plate 72 to drive the objects to move upward. At the same time, the sliding ring 75 will move on the outer surface of the straight rod 76 to increase the stability of the support plate 72 and the upward movement of the objects; when the device has been working for a long time and the steel ball 569 is damaged, the operator removes the installation box 561 and pulls the pull plate 5616, so that the limit plate 5612 and the blocking block 5613 no longer prevent the rotation of the package frame 567, and finally the steel ball 569 can be removed, and then a new steel ball 569 can be placed.

[0053] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A dynamic lifting mechanism, characterized in that: include: A frame (1), and a connection frame (3) fixedly connected to the outer surface of the frame (1); A base (2), used for supporting the lifting mechanism; A rotating mechanism (4) is used to make the screw rod produce a rotating effect and drive the lifting device to vertically lift; A lifting mechanism (5) is used to vertically lift and lower the outer surface of the screw rod under the drive of the rotating mechanism (4); A support mechanism (7) for supporting the bottom of an object to be lifted, and a limiting ring (6) arranged on the outer surface of the support mechanism (7); The base (2) is fixedly connected to the outer surface of the frame (1); the rotating mechanism (4) is fixedly connected to the outer surface of the frame (1) via a connecting frame (3); the lifting mechanism (5) is sleeved on the outer surface of the rotating mechanism (4); and the dragging mechanism (7) is connected to the lifting mechanism (5) via a limiting ring (6).

2. A dynamic lifting mechanism according to claim 1, characterized in that: The base (2) comprises a fixing frame (21), the fixing frame (21) is fixedly connected to the outer surface of the frame (1), the outer surface of the fixing frame (21) is fixedly connected to a supporting frame (22), the upper surface of the fixing frame (21) is fixedly connected to a limit box (23), the inner cavity of the limit box (23) is slidably connected to a sliding plate (24), and the lower surface of the sliding plate (24) is fixedly connected to a bottom plate (25).

3. A dynamic lifting mechanism according to claim 2, characterized in that: The rotating mechanism (4) comprises a stepper motor (41) and a first limit rod (44); the stepper motor (41) is fixedly connected to the lower surface of the connecting frame (3); a rotating rod (42) is installed at the output end of the stepper motor (41) via a coupling; a reciprocating screw rod (43) is fixedly connected to the top of the rotating rod (42); the first limit rod (44) is fixedly connected to the upper surface of the frame (1); and a top end of the first limit rod (44) is fixedly connected to a top frame (45).

4. A dynamic lifting mechanism according to claim 3, characterized in that: A support rod (46) is fixedly connected to the top surface of the inner cavity of the top frame (45), a rolling bearing (47) is fixedly connected to the end of the support rod (46), a first rotating column (48) is fixedly connected to the inner ring of the rolling bearing (47), the bottom end of the first rotating column (48) is fixedly connected to the top end of the reciprocating screw rod (43), the outer side surface of the top frame (45) is fixedly connected to the first limiting sleeve (49), the inner cavity of the first limiting sleeve (49) is rotatably connected to the first rotating block (410), the first rotating block (410) is fixedly connected to a bending rod (411) on one side of the outer surface of the first limiting sleeve (49), the end of the bending rod (411) away from the first rotating block (410) is fixedly connected to a positioning frame (412), and the inner cavity of the positioning frame (412) is fixedly connected to a soft cushion (413).

5. A dynamic lifting mechanism according to claim 4, characterized in that: The lifting mechanism (5) comprises a sliding sleeve (51), wherein the sliding sleeve (51) is slidably connected to the outer surface of the first limiting rod (44), the outer surface of the sliding sleeve (51) is fixedly connected to a fixing plate (52), the outer surface of the fixing plate (52) is fixedly connected to a blocking plate (55), the side of the fixing plate (52) away from the blocking plate (55) is fixedly connected to a connecting block (53), the side of the connecting block (53) away from the fixing plate (52) is fixedly connected to a sliding box (54), the outer surface of the sliding box (54) is fixedly connected to a supporting frame (58), the outer surface of the supporting frame (58) is penetrated by a carbon rod (59), the carbon rod (59) penetrates the sliding box (54), and the carbon rod (59) is frictionally matched with the outer surface of the reciprocating screw (43).

6. A dynamic lifting mechanism according to claim 5, characterized in that: The inner surface of the support frame (58) is fixedly connected to a threaded ring (510); the inner wall of the sliding box (54) is fixedly connected to a locking ring (57); the inner cavity of the locking ring (57) is movably connected to a limiting mechanism (56); the limiting mechanism (56) comprises a mounting box (561); the mounting box (561) is movably connected to the locking ring (57); the outer surface of the mounting box (561) is fixedly connected to a mounting plate (562); the inner cavity of the mounting plate (562) is threadedly connected to a threaded rod (563); the threaded rod (563) is threadedly connected to the inner cavity of the threaded ring (510); and the inner wall of the mounting box (561) is fixedly connected to a track box (564).

7. A dynamic lifting mechanism according to claim 6, characterized in that: A second limiting rod (565) is fixedly connected to one side of the track box (564) away from the inner wall of the mounting box (561); the outer surface of the second limiting rod (565) is rotatably connected to a rotating frame (566); the end of the rotating frame (566) is fixedly connected to a wrapping frame (567); the end of the wrapping frame (567) is fixedly connected to a locking sleeve (568); a steel ball (569) is rotatably connected to the inner cavity of the locking sleeve (568); the steel ball (569) is frictionally matched with the thread groove of the reciprocating screw (43); the outer surface of the wrapping frame (567) is fixedly connected to a fixed block (5610); a first spring (5611) is fixedly connected between opposite surfaces of the fixed block (5610).

8. A dynamic lifting mechanism according to claim 7, characterized in that: The inner cavity of the track box (564) is slidably connected to a limit plate (5612), the outer surface of the limit plate (5612) is fixedly connected to a blocking block (5613), and the blocking block (5613) is extruded and adapted to the outer surface of the wrapping frame (567). The bottom end of the limit plate (5612) is fixedly connected to a pull plate (5616), and the outer surface of the pull plate (5616) is sleeved with a limit ring (5615), and the limit ring (5615) is fixedly connected to the inner wall of the installation box (561), and the outer side surface of the limit plate (5612) is fixedly connected to an extrusion plate (5614), and a second spring (5617) is fixedly connected between the opposite surfaces of the extrusion plate (5614) and the limit ring (5615).

9. A dynamic lifting mechanism according to claim 8, characterized in that: The limiting ring (6) is fixedly connected to the outer surface of the fixed plate (52), and the support mechanism (7) comprises a rotating bar (71), wherein the rotating bar (71) is rotatably connected to the inner cavity of the limiting ring (6), the upper surface of the rotating bar (71) is fixedly connected to the support plate (72), the outer side surface of the support plate (72) is fixedly connected to a second limiting sleeve (73), the inner cavity of the second limiting sleeve (73) is rotatably connected to a second rotating block (74), the second rotating block (74) is fixedly connected to a sliding ring (75) on a side away from the support plate (72), the inner ring of the sliding ring (75) is slidably connected to a straight rod (76), the top end of the straight rod (76) is fixedly connected to a positioning column (77), and the positioning column (77) is extruded and adapted to the soft cushion (413).

10. A dynamic lifting mechanism according to claim 9, characterized in that: The support mechanism (7) further comprises a limit plate (78), wherein the limit plate (78) is fixedly connected to the outer surface of the frame (1); the outer surface of the limit plate (78) is rotatably connected to a rotating sleeve (79); a first connecting rod (710) is fixedly connected to a side of the rotating sleeve (79) away from the limit plate (78); an end of the first connecting rod (710) is fixedly connected to a limit tube (711); a sliding column (712) is slidably connected to an inner cavity of the limit tube (711); an end of the sliding column (712) is fixedly connected to a third spring (713); an end of the sliding column (712) away from the third spring (713) is fixedly connected to a second connecting rod (714); an end of the second connecting rod (714) is fixedly connected to a second rotating column (715); a rotating tube (716) is rotatably connected to the outer surface of the second rotating column (715); and the rotating tube (716) is fixedly connected to the bottom end of the straight rod (76).

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