A lifting device for a cylindrical object

Abstract

The utility model discloses a kind of lifting devices for cylindrical object, including bunker, lifting mechanism is equipped in the side of bunker, lifting mechanism includes lifting frame body, at least two groups of slide plate assemblies are equipped on lifting frame body, two groups of slide plate assemblies are alternately moved up and down by driving mechanism and cylindrical object is lifted upwards, the top of lifting frame body one side is equipped with the kick pipe component that prevents cylindrical object to be stacked. Two groups of slide plate assemblies set by the utility model are alternately moved up and down by driving mechanism and cylindrical object is lifted upwards, cylindrical object in the inside of two cylindrical objects mutually stacked enters cylindrical object buffer area and slides down to code scanner, cylindrical object on the outside falls into bunker by kick pipe component, ensure that single cylindrical object is sequentially lifted one by one to code scanner and is scanned and identified, solve the problem of double support lifting and double support stacked lifting.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a lifting device for cylindrical objects. Background Technology

[0002] Currently, lifting devices for multiple cylindrical objects on the market are mainly divided into two categories. One type lifts multiple cylindrical objects to a conveyor belt at the same time, and then separates them one by one through other mechanisms. This mechanism is relatively slow. The other type lifts the cylindrical objects one by one. This structure is characterized by higher efficiency, but because the state of the cylindrical objects is not easy to control, the cylindrical objects are in different shapes during the lifting process, and abnormal lifting may occur, such as lifting two objects at the same time or lifting two objects superimposed, resulting in a higher failure rate. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a lifting device for cylindrical objects, which solves the problem of high failure rates caused by situations such as simultaneous lifting of two supports or overlapping lifting of two supports during the existing cylindrical object lifting process.

[0004] This utility model is implemented as follows:

[0005] A lifting device for cylindrical objects includes: a hopper, a plurality of lifting mechanisms on one side of the hopper, each lifting mechanism including a lifting frame, at least two sets of sliding plate assemblies on the lifting frame, the two sets of sliding plate assemblies moving up and down alternately through a drive mechanism to lift the cylindrical objects upward, and a kicking pipe assembly to prevent the cylindrical objects from stacking on one side of the top of the lifting frame.

[0006] Furthermore, the lifting frame includes a base plate and two upright plates. The two upright plates are symmetrically arranged on the top of the base plate. The upper parts of the two upright plates are fixedly connected by a first connecting plate, the lower parts are fixedly connected by a second connecting plate, and the middle parts are fixedly connected by several third connecting plates.

[0007] Furthermore, the skateboard assembly includes a first skateboard assembly and a second skateboard assembly that are alternately arranged for sliding. The first skateboard assembly includes a first skateboard and a second skateboard that are spaced apart. The first skateboard and the second skateboard are fixedly connected by a fourth connecting plate. The second skateboard assembly includes a third skateboard and a fourth skateboard that are spaced apart. The third skateboard and the fourth skateboard are fixedly connected by a fifth connecting plate.

[0008] Furthermore, the drive mechanism includes a drive motor, which is fixedly mounted on the second connecting plate. A drive wheel is fixedly connected to the output shaft of the drive motor, and a driven wheel is rotatably mounted on one of the third connecting plates. A transmission belt is sleeved on the outer side of the drive wheel and the driven wheel.

[0009] Furthermore, an inner crank and an outer crank are fixedly provided on the inner and outer sides of the driven wheel, respectively. One end of the outer crank is connected to a first joint bearing, and a second joint bearing is connected to the second slide plate. The first joint bearing and the second joint bearing are connected by a first connecting rod. One end of the inner crank is connected to a third joint bearing. The third joint bearing and the first joint bearing are arranged opposite to each other on both sides of the driven wheel. A fourth joint bearing is connected to the fourth slide plate, and the third joint bearing and the fourth joint bearing are connected by a second connecting rod.

[0010] Furthermore, two bearing seats are symmetrically connected to both sides of the first, second, third, and fourth slide plates, and a linear bearing is fixedly connected to each bearing seat. Two guide shafts are erected on the outer side of each vertical plate, and the linear bearings are slidably sleeved on the outer side of the corresponding guide shafts.

[0011] Furthermore, each upright plate is provided with multiple vertical grooves, and one end of the bearing seat slides through the corresponding vertical groove.

[0012] Furthermore, the upper part of the inner side of the upright plate is symmetrically provided with kick pipe guide grooves, and one side of the kick pipe guide groove is connected to several arc-shaped grooves, and the bottom of each arc-shaped groove is connected to a vertical straight groove.

[0013] Furthermore, the kick tube assembly includes a support frame fixedly mounted on one of the upright plates, a swing arm on the support frame, one end of the swing arm being rotatably connected to the support frame, the other end of the swing arm passing through the upright plate and rotatably connected to a first rotating wheel, and a spring connecting the swing arm and the support frame.

[0014] Furthermore, a buffer support plate is fixedly provided on the top of the first connecting plate. The buffer support plate is inclined. A follow-up lifting plate is rotatably provided on the lifting frame. The follow-up lifting plate is located above the buffer support plate. An inclined groove is provided on the buffer support plate. The inclined groove is inclined and its depth gradually increases from top to bottom.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses a lifting device for cylindrical objects. Two sets of sliding plate assemblies move alternately up and down via a drive mechanism to lift the cylindrical objects. The inner cylindrical object of two stacked cylindrical objects enters a buffer area and slides down to the barcode scanner, while the outer cylindrical object falls into the hopper via a kick tube assembly. This ensures that individual cylindrical objects are lifted sequentially to the barcode scanner for scanning and identification, solving the problems of simultaneous lifting of two objects and lifting of two stacked objects. The kick tube guide groove allows vertical cylindrical objects near the inner side of the upright plate to pass sequentially through vertical straight grooves and arc-shaped grooves during the ascent to the kick tube guide groove, and then fall freely into the hopper. Simultaneously, the inclined docking grooves on the third and fourth sliding plates prevent the cylindrical objects from remaining vertically upright during lifting, causing them to tip over onto the top of the docking plate and preventing them from reaching the top of the lifting frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a three-dimensional structural diagram of the lifting mechanism of this utility model. Figure 1 ;

[0019] Figure 3 This is a three-dimensional structural diagram of the lifting mechanism of this utility model from another perspective. Figure 2 ;

[0020] Figure 4 This is a three-dimensional structural diagram of the skateboard component of this utility model. Figure 1 ;

[0021] Figure 5 This is a three-dimensional structural diagram of the skateboard component of this utility model from another perspective. Figure 2 ;

[0022] Figure 6 This is a left view of the skateboard assembly of this utility model;

[0023] Figure 7 This is an exploded view of the first and second skateboard components of this utility model;

[0024] Figure 8 This is a partial three-dimensional structural diagram of the combined buffer support plate and the follow-up lifting plate of this utility model;

[0025] Figure 9 This is a partial left view of the combination of the buffer support plate and the follow-up lifting plate of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Hopper; 11. Divider rack;

[0028] 2. Lifting mechanism; 21. Lifting frame; 211. Base plate; 212. Vertical plate; 2121. Vertical slide groove; 2122. Kick pipe guide groove; 2123. Arc-shaped groove; 2124. Straight groove; 213. First connecting plate; 214. Second connecting plate; 215. Third connecting plate; 216. Guide shaft; 217. Buffer support plate; 2171. Inclined groove; 218. Follow-up lifting plate; 2181. Z-shaped baffle; 2182. Inclined plate; 2183. Support lug; 2184. Second rotating wheel; 219. Columnar object buffer area;

[0029] 3. Drive mechanism; 31. Drive motor; 32. Drive wheel; 33. Driven wheel; 34. Transmission belt; 35. Inner crank; 351. Third joint bearing; 36. Outer crank; 361. First joint bearing;

[0030] 4. Kicker assembly; 41. Support frame; 42. Swing arm; 43. First rotating wheel; 44. Spring;

[0031] 5. Barcode scanner;

[0032] 6. First skateboard assembly; 61. First skateboard; 62. Second skateboard; 621. Second joint bearing; 622. First connecting rod; 63. Fourth connecting plate; 64. Bearing seat; 65. Linear bearing; 66. Vertical push plate;

[0033] 7. Second skateboard assembly; 71. Third skateboard; 711. Connecting plate; 7111. Connecting groove; 72. Fourth skateboard; 721. Fourth joint bearing; 722. Second connecting rod; 73. Fifth connecting plate; 8. Columnar object. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] like Figures 1-9 The present invention provides a lifting device for cylindrical objects, including a hopper 1. A lifting mechanism 2 is provided on one side of the hopper 1. The lifting mechanism 2 includes a lifting frame 21. At least two sets of sliding plate assemblies are provided on the lifting frame 21. The two sets of sliding plate assemblies move up and down alternately through a driving mechanism 3 to lift the cylindrical objects 8 upward. A kicking tube assembly 4 is provided on one side of the top of the lifting frame 21 to prevent the cylindrical objects 8 from stacking. A barcode scanner 5 is provided above the kicking tube assembly 4.

[0036] The barcode scanner 5 is a reading device used to read the information contained in the barcode on the cylindrical object. In this embodiment, the cylindrical object can be a test tube used in a medical system, such as a blood collection tube or a urine catheter, etc., and there are no restrictions. The barcode scanner 5 is existing technology, and any commercially available product that meets the usage requirements can be used, such as a scanner from Honeywell. There are no restrictions, and the scanner can be selected according to actual needs.

[0037] like Figure 1 As shown, the material hopper 1 in this utility model is provided with a dividing frame 11 in the middle, which divides the material hopper 1 into two small material hoppers 1. Each small material hopper 1 is provided with a corresponding lifting mechanism 2. In order to make the display of each component clearer, Figure 1 Only one lifting mechanism 2 is shown in the diagram. In actual use, the number of lifting mechanisms is the same as the number of small hoppers 1. Of course, to improve lifting efficiency, preferably, two, three, or more lifting mechanisms 2 can be simultaneously installed on one side of the hopper 1. Multiple lifting mechanisms 2 are arranged in parallel on one side of the hopper 1, and simultaneously lift the cylindrical objects inside the hopper, greatly improving the lifting efficiency of the lifting mechanisms 2. The number of lifting mechanisms 2 can be designed according to actual needs; it can be one or more, and is not limited here, all of which fall within the protection scope of this utility model.

[0038] like Figures 2-7 As shown, the lifting frame 21 includes a base plate 211 and two upright plates 212. The two upright plates 212 are symmetrically arranged on the top of the base plate 211. The upper parts of the two upright plates 212 are fixedly connected by a first connecting plate 213, the lower parts are fixedly connected by a second connecting plate 214, and the middle parts are fixedly connected by several third connecting plates 215.

[0039] The skateboard assembly includes a first skateboard assembly 6 and a second skateboard assembly 7 that slide alternately. The first skateboard assembly 6 includes a first skateboard 61 and a second skateboard 62 that are spaced apart, and the first skateboard 61 and the second skateboard 62 are fixedly connected by a fourth connecting plate 63. The second skateboard assembly 7 includes a third skateboard 71 and a fourth skateboard 72 that are spaced apart, and the third skateboard 71 and the fourth skateboard 72 are fixedly connected by a fifth connecting plate 73. At least two bearing seats 64 are symmetrically connected to both sides of the first skateboard 61, the second skateboard 62, the third skateboard 71, and the fourth skateboard 72. A linear bearing 65 is fixedly connected to each bearing seat 64. Two guide shafts 216 are erected on the outer side of each upright plate 212, and the linear bearings 65 are slidably sleeved on the outer side of the corresponding guide shafts 216. Compared with the traditional pulley and slide rail design, the lifting mechanism 2 of this utility model adopts the movement mode of guide shafts 216 and linear bearings 65 to improve operational stability, withstand higher lifting speeds, and completely avoid skateboard derailment.

[0040] Specifically, the bearing seats 64 on both sides of the first slide plate 61 are fixedly connected to one end of the fourth connecting plate 63 on the corresponding side, and the bearing seats 64 on both sides of the second slide plate 62 are fixedly connected to the other end of the fourth connecting plate 63 on the corresponding side. Two bearing seats 64 are also symmetrically fixedly connected to the upper part of the second slide plate 62, and vertical push plates 66 are fixedly connected to the two bearing seats 64. The bearing seats 64 on both sides of the third slide plate 71 are fixedly connected to one end of the fifth connecting plate 73 on the corresponding side, and the bearing seats 64 on both sides of the fourth slide plate 72 are fixedly connected to the other end of the fifth connecting plate 73 on the corresponding side.

[0041] The drive mechanism 3 includes a drive motor 31, which is fixedly mounted on the second connecting plate 214. A drive wheel 32 is fixedly connected to the output shaft of the drive motor 31. A driven wheel 33 is rotatably mounted on one of the third connecting plates 215. A transmission belt 34 is sleeved on the outer side of the drive wheel 32 and the driven wheel 33. An inner crank 35 and an outer crank 36 are fixedly mounted on the inner and outer sides of the driven wheel 33, respectively. One end of the outer crank 36 is connected to a first joint bearing 361. A second joint bearing 621 is connected to the second slide plate 62. The first joint bearing 361 and the second joint bearing 621 are connected by a first connecting rod 622. One end of the inner crank 35 is connected to a third joint bearing 351. The third joint bearing 351 and the first joint bearing 361 are arranged opposite to each other on both sides of the driven wheel 33. A fourth joint bearing 721 is connected to the fourth slide plate 72. The third joint bearing 351 and the fourth joint bearing 721 are connected by a second connecting rod 722. Each upright plate 212 has multiple vertical sliding grooves 2121. One end of the bearing seat 64 slides through the corresponding vertical sliding groove 2121. Since the bearing seat 64 is fixedly connected to each sliding plate, each sliding plate slides in the corresponding vertical sliding groove 2121, ensuring that each sliding plate slides up and down in the vertical direction.

[0042] When the drive motor 31 is started, the output shaft of the drive motor 31 rotates, driving the drive wheel 32 to rotate. The rotation of the drive wheel 32 drives the driven wheel 33 to rotate via the transmission belt 34. The rotation of the driven wheel 33 causes the inner crank 35 and the outer crank 36 on its inner and outer sides to move relative to each other. That is, when the inner crank 35 rotates downward, the outer crank 36 rotates upward, and when the inner crank 35 rotates upward, the outer crank 36 rotates downward. Since the outer crank 36 is connected to the second slide plate 62 through the first joint bearing 361, the first connecting rod 622, and the second joint bearing 621, and the second slide plate 62 is fixedly connected to the first slide plate 61, when the outer crank 36 rotates upward or downward, it drives the first slide plate 61 and the second slide plate 62 to slide vertically upward or downward along the length of the vertical slide groove 2121. Similarly, since the inner crank 35 is connected to the fourth slide plate 72 via the third joint bearing 351, the second connecting rod 722, and the fourth joint bearing 721, and the fourth slide plate 72 is fixedly connected to the third slide plate 71, when the inner crank 35 rotates upward or downward, it drives the fourth slide plate 72 and the third slide plate 71 to slide vertically upward or downward along the length of the vertical slide groove 2121. Therefore, the rotation of the driven wheel 33 drives the inner crank 35 and the outer crank 36 to move relative to each other, that is, when the inner crank 35 rotates upward, the outer crank 36 rotates downward, or when the inner crank 35 rotates downward, the outer crank 36 rotates upward, thereby driving the first slide plate assembly 6 and the second slide plate assembly 7 to slide alternately up and down in the vertical direction.

[0043] The top of the third sliding plate 71 and the fourth sliding plate 72 are fixedly provided with a docking plate 711. The top of the docking plate 711 has multiple inclined docking grooves 7111, which are evenly distributed along the length of the docking plate 711. The multiple inclined docking grooves 7111 are provided to prevent the cylindrical object 8 from being set vertically during the lifting process, causing it to tip over onto the top of the docking plate 711 or fall into the hopper 1, and to prevent the vertical cylindrical object 8 from reaching the top of the lifting frame 21.

[0044] like Figure 8 and Figure 9 As shown, the upper part of the inner side of the upright plate 212 is symmetrically provided with kick pipe guide grooves 2122. One side of the kick pipe guide groove 2122 is connected to several arc-shaped grooves 2123, and the bottom of each arc-shaped groove 2123 is connected to a vertical straight groove 2124. When the cylindrical object 8 rises vertically under the drive of the two sliding plate assemblies, the vertical cylindrical object 8 tilts to the top of the docking plate 711 due to the setting of the docking groove 7111 on the docking plate 711. However, the cylindrical object 8 near the inner side of the upright plate 212 may still be in a vertical state. When the cylindrical object 8 moves to the straight groove 2124 during its ascent, it can pass through the vertical straight groove 2124 and the arc-shaped groove 2123 in sequence to the kick pipe guide groove 2122 during the continued ascent, and then fall freely into the hopper 1, thus solving the problem of vertical pipe lifting.

[0045] like Figure 2 , Figure 8 and Figure 9 As shown, the kick pipe assembly 4 includes a support frame 41 fixedly mounted on one of the upright plates 212. A swing arm 42 is mounted on the support frame 41. One end of the swing arm 42 is rotatably connected to the support frame 41, and the other end of the swing arm 42 passes through the upright plate 212 and is rotatably connected to a first rotating wheel 43. A spring 44 connects the swing arm 42 and the support frame 41. A buffer support plate 217 is fixedly mounted on the top of the first connecting plate 213. The buffer support plate 217 is inclined. A follower lifting plate 218 is rotatably mounted on the lifting frame 21, located above the buffer support plate 217. A sloping groove 2171 is formed on the buffer support plate 217, and the groove 2171 is inclined with its depth gradually increasing from top to bottom. The follow-up lifting plate 218 includes a Z-shaped baffle 2181 and an inclined plate 2182. One end of the inclined plate 2182 is fixedly connected to the Z-shaped baffle 2181, and the two sides are provided with lugs 2183. A rotating shaft (not shown in the figure) passes through the lugs 2183. The lugs 2183 are rotatably connected to the corresponding upright plate 212 through the rotating shaft. The other end of the inclined plate 2182 is provided with second rotating wheels 2184 on both sides.

[0046] When the follow-up lifting plate 218 is in its natural state, its bottom abuts against the top of the buffer support plate 217. When the cylindrical object 8 in the hopper 1 is lifted upward by the slide plate assembly, the vertical push plate 66 set on the second slide plate 62 moves upward during the upward process. When the vertical push plate 66 moves upward and abuts against the second rotating wheel 2184 set on the follow-up lifting plate 218, it will push the follow-up lifting plate 218 to rotate upward until the Z-shaped baffle 2181 of the follow-up lifting plate 218 and the buffer support plate 217 form a cylindrical object buffer area 219, and the cylindrical object buffer area 219 can only accommodate one cylindrical object 8. If the two cylindrical objects 8 are stacked side by side, when the second slide plate 62 rises to its highest point, the bottom wall of the inner cylindrical object 8 just rises to the top of the buffer support plate 217. The inner cylindrical object 8 enters the cylindrical object buffer area 219 along the inclined groove 2171 and comes into contact with the follow-up lifting plate 218. The outer stacked cylindrical objects 8 are prone to instability under the push of the first rotating wheel 43 on the swing arm 42. As the second slide plate 62 descends, the swing arm 42 rotates downward under the reset contraction of the spring 44 and pushes the outer cylindrical objects 8 to fall into the hopper 1, thus solving the problem of the two cylindrical objects 8 being stacked during the lifting process. Simultaneously, during the descent of the second slide plate 62, the vertical push plate 66 moves downward, and the follower lifting plate 218 rotates downward accordingly. The gap between the follower lifting plate 218 and the buffer support plate 217 gradually increases, and the cylindrical object 8 temporarily stored in the cylindrical object buffer area 219 slides down along the inclined groove 2171 until it slides from the gap between the two to the barcode scanner 5 for barcode scanning and identification, thereby ensuring that the cylindrical objects 8 slide down along the inclined groove 2171 one by one in sequence.

[0047] The lifting mechanism 2 is designed with a cylindrical object buffer area 219. A buffer position sensor (not shown in the figure) is installed on the upright plate 212. The buffer position sensor is located near the cylindrical object buffer area 219 to detect whether there is a cylindrical object 8 in the cylindrical object buffer area 219. When the barcode scanner 5 in the rear scanning area recognizes the cylindrical object 8 and scans it for receipt, the buffer position sensor located near the cylindrical object buffer area 219 will detect whether there is a cylindrical object 8 in the area. If not, the lifting mechanism 2 will continue to work to lift the cylindrical object 8 to the cylindrical object buffer area 219 to wait, thereby ensuring the efficiency of the receipt of cylindrical object 8 specimens in the entire mechanism.

[0048] In use, the lifting device for cylindrical objects of this utility model places multiple cylindrical objects 8 in the hopper 1. First, the drive motor 31 is started, which drives the first sliding plate assembly 6 and the second sliding plate assembly 7 to move up and down alternately to lift the cylindrical objects 8 in the hopper 1. If, during the lifting process, the cylindrical object 8 near the inner side of the upright plate 212 is in a vertical state, it will pass through the vertical straight groove 2124 and the arc groove 2123 in sequence to the kick pipe guide groove 2122, and then fall freely into the hopper 1. If two cylindrical objects 8 are stacked during the lifting process, when the two cylindrical objects 8 are lifted to the highest point by the second sliding plate 62, the bottom wall of the inner cylindrical object 8 just rises to the top of the buffer support plate 217. The inner cylindrical object 8 enters the cylindrical object buffer area 219 along the inclined groove 2171 and is followed by the lifting plate. When the two cylindrical objects 218 come into contact, the inner cylindrical objects 8 are temporarily stored in the cylindrical object buffer area 219. The cylindrical objects 8 stacked side by side on the outer side are prone to instability under the push of the first rotating wheel 43 on the swing arm 42. As the second slide plate 62 descends, the swing arm 42 rotates downward under the reset contraction of the spring 44 and pushes the outer cylindrical objects 8 to fall into the hopper 1. At the same time, during the descent of the second slide plate 62, the vertical push plate 66 moves downward, and the follower lifting plate 218 rotates downward accordingly. The gap between the follower lifting plate 218 and the buffer support plate 217 gradually increases. The cylindrical objects 8 temporarily stored in the cylindrical object buffer area 219 slide down the inclined groove 2171 until they slide from the gap between the two to the barcode scanner 5 for barcode scanning and identification, thereby ensuring that the cylindrical objects 8 slide down the inclined groove 2171 one by one in sequence.

[0049] While this utility model discloses preferred embodiments to achieve the above objectives, it is not intended to limit the structural features of this utility model. Anyone skilled in the art should know that any easily conceivable variations or modifications are possible under the technical spirit of this utility model and are covered by the patent claims of this utility model.

Claims

1. A lifting device for cylindrical objects, characterized in that, include: The hopper (1) is provided with several lifting mechanisms (2) on one side. The lifting mechanism (2) includes a lifting frame (21). The lifting frame (21) is provided with at least two sets of sliding plate assemblies. The two sets of sliding plate assemblies move up and down alternately through the driving mechanism (3) and lift the cylindrical object (8) upward. The top side of the lifting frame (21) is provided with a kicking pipe assembly (4) to prevent the cylindrical object (8) from stacking.

2. The lifting device for cylindrical objects according to claim 1, characterized in that, The lifting frame (21) includes a base plate (211) and two upright plates (212). The two upright plates (212) are symmetrically arranged on the top of the base plate (211). The upper parts of the two upright plates (212) are fixedly connected by a first connecting plate (213), the lower parts are fixedly connected by a second connecting plate (214), and the middle parts are fixedly connected by several third connecting plates (215).

3. The lifting device for cylindrical objects according to claim 2, characterized in that, The skateboard assembly includes a first skateboard assembly (6) and a second skateboard assembly (7) that are alternately slidable. The first skateboard assembly (6) includes a first skateboard (61) and a second skateboard (62) that are spaced apart. The first skateboard (61) and the second skateboard (62) are fixedly connected by a fourth connecting plate (63). The second skateboard assembly (7) includes a third skateboard (71) and a fourth skateboard (72) that are spaced apart. The third skateboard (71) and the fourth skateboard (72) are fixedly connected by a fifth connecting plate (73).

4. The lifting device for cylindrical objects according to claim 3, characterized in that, The drive mechanism (3) includes a drive motor (31), which is fixedly mounted on the second connecting plate (214). A drive wheel (32) is fixedly connected to the output shaft of the drive motor (31), and a driven wheel (33) is rotatably mounted on one of the third connecting plates (215). A transmission belt (34) is sleeved on the outer side of the drive wheel (32) and the driven wheel (33).

5. The lifting device for a cylindrical object according to claim 4, characterized in that, An inner crank (35) and an outer crank (36) are fixedly provided on the inner and outer sides of the driven wheel (33), respectively. One end of the outer crank (36) is connected to a first joint bearing (361). A second joint bearing (621) is connected to the second slide plate (62). The first joint bearing (361) and the second joint bearing (621) are connected by a first connecting rod (622). One end of the inner crank (35) is connected to a third joint bearing (351). The third joint bearing (351) and the first joint bearing (361) are arranged opposite to each other on both sides of the driven wheel (33). A fourth joint bearing (721) is connected to the fourth slide plate (72). The third joint bearing (351) and the fourth joint bearing (721) are connected by a second connecting rod (722).

6. The lifting device for a cylindrical object according to claim 3, characterized in that, Two bearing seats (64) are symmetrically connected to both sides of the first slide plate (61), the second slide plate (62), the third slide plate (71) and the fourth slide plate (72). A linear bearing (65) is fixedly connected to each bearing seat (64). Two guide shafts (216) are erected on the outer side of each of the upright plates (212). The linear bearing (65) is slidably sleeved on the outer side of the corresponding guide shaft (216).

7. The lifting device for a cylindrical object according to claim 6, characterized in that, Each of the upright plates (212) is provided with multiple vertical grooves (2121), and one end of the bearing seat (64) slides through the corresponding vertical groove (2121).

8. The lifting device for a cylindrical object according to claim 2, characterized in that, The upper part of the inner side of the upright plate (212) is symmetrically provided with kick pipe guide grooves (2122). One side of the kick pipe guide groove (2122) is connected to a number of arc-shaped grooves (2123). The bottom of each arc-shaped groove (2123) is connected to a vertical straight groove (2124).

9. The lifting device for a cylindrical object according to claim 2, characterized in that, The kick tube assembly (4) includes a support frame (41) fixedly mounted on one of the upright plates (212). The support frame (41) is provided with a swing arm (42). One end of the swing arm (42) is rotatably connected to the support frame (41). The other end of the swing arm (42) passes through the upright plate (212) and is rotatably connected to a first rotating wheel (43). A spring (44) is connected between the swing arm (42) and the support frame (41).

10. The lifting device for a cylindrical object according to claim 2, characterized in that, A buffer support plate (217) is fixedly provided on the top of the first connecting plate (213). The buffer support plate (217) is inclined. A follower lifting plate (218) is rotatably provided on the lifting frame (21). The follower lifting plate (218) is located above the buffer support plate (217). A sloping groove (2171) is provided on the buffer support plate (217). The sloping groove (2171) is inclined and its depth gradually increases from top to bottom.

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