Continuous lifting conveyor
By designing a continuous lift conveyor, using the cooperation of the conveyor belt and counterweight plate, the problem of low up and down transfer efficiency in existing equipment is solved, and the continuous and stable transportation of items is achieved.
Patent Information
- Application Number
- CN202421972981.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-14
AI Technical Summary
Existing equipment is inefficient in the process of transferring items up and down, and cannot achieve continuous transportation, resulting in low working efficiency.
The continuous lift conveyor is adopted, and the lifting frame and counterweight plate on the conveyor belt are used to achieve continuous up and down transportation of items through the rotational movement of the conveyor belt, and the design of leveling blocks and limit vertical rods ensures the stability and smooth movement of the lifting frame.
The continuous loading and unloading of items is achieved, the transfer efficiency and stability are improved, and the smooth transfer of items is ensured.
Smart Images
Figure CN223073216U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a conveying device, in particular to a continuous lifting conveyor. Background Art
[0002] In industrial production, it is necessary to transfer articles in the vertical direction. For example, in a daily-use porcelain production line, it is necessary to lift and place daily-use porcelain on kiln furniture. The traditional method relies on manual transfer of articles in the vertical direction. With the progress of technology, some devices that can automatically move articles in the vertical direction have emerged, such as belt conveyor rollers. After the rollers lift the product to the target position, the product is removed or replenished, and then the rollers descend and reset, repeating the above process to achieve automatic vertical transfer and conveying of articles. However, this process is an intermittent conveying process, and the next vertical transfer operation can only be carried out after waiting for the rollers to reset, resulting in low work efficiency. Therefore, there is an urgent need for a device that can more efficiently achieve vertical transfer of articles. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a continuous lifting conveyor to solve one or more technical problems in the prior art and at least provide a beneficial alternative or creative condition.
[0004] The solution of the utility model to solve its technical problems is as follows:
[0005] A continuous lifting conveyor, comprising: a frame; a conveying device located inside the frame and having a conveyor belt that can rotate and move in the vertical direction; a lifting unit including a connecting seat and a lifting frame. A plurality of the connecting seats are connected to the conveyor belt, the lifting frame is rotatably connected to one of the connecting seats, the rotation axis of the lifting frame extends in the horizontal direction, a support arm extending outward from the frame is arranged on one side of the lifting frame, and a leveling fulcrum extending inward from the frame is arranged on the other side of the lifting frame. A plurality of the lifting units are arranged along the length direction of the conveyor belt; a counterweight plate is slidably connected to the frame in the vertical direction, and the conveyor belt drives the lifting frame to move upward and makes the leveling fulcrum abut against the bottom side of the counterweight plate.
[0006] The technical solution has at least the following beneficial effects: The supporting arm is used to support an article. During operation, the conveyor belt of the conveying device rotates and moves in the vertical direction within the frame. A plurality of lifting frames are respectively rotatably connected to the conveyor belt through a plurality of connecting seats. The plurality of lifting frames that rotate and move following the conveyor belt can continuously load and unload the article. Due to its own gravity, the counterweight plate has a tendency to slide downward to the bottom end of the stroke within the frame. When the lifting frame is driven upward to the point where its leveling fulcrum abuts against the bottom side of the counterweight plate, the pressure of the counterweight plate on the leveling fulcrum can adjust the movement posture of the lifting frame, so that the supporting arm remains horizontal and lifts the article upward. Especially when the lifting frame moves upward to the turning vertex of the conveyor belt, by using the gravity of the counterweight plate to keep pressing down on the leveling fulcrum, the lifting frame can be rotated and positioned on the connecting seat to ensure stable upward lifting of the article. When the lifting frame falls from the turning vertex of the conveyor belt, the counterweight plate also falls under the action of gravity and continues to keep pressing down on the leveling fulcrum, so that the supporting arm can also move downward smoothly from the highest point until the lifting frame moves to the bottom end of the stroke of the counterweight plate. In this way, the rotating conveyor belt drives a plurality of lifting frames to rotate cyclically to realize continuous loading and unloading of the article, and the counterweight plate is used to cleverly level the lifting frame to ensure stable transfer of the article, thereby improving the efficiency and stability of article transfer.
[0007] As a further improvement of the above technical solution, a leveling block is connected to the lifting frame, and the leveling block forms the leveling fulcrum. At least two leveling blocks are arranged at intervals in the horizontal direction. When the lifting frame moves upward to the position of the counterweight plate, at least two leveling blocks on the counterweight plate respectively form two spaced leveling fulcrums and abut against the bottom side of the counterweight plate. At this time, by the downward pressure limit of the counterweight plate on at least two leveling blocks, the deflection of the lifting frame can be restricted, so that the lifting frame moves upward in parallel with the counterweight plate, and the stable upward lifting of the article can also be realized. Similarly, by using the deflection limit of the counterweight plate on the lifting frame, the stable downward movement of the article can be realized.
[0008] As a further improvement of the above technical solution, two limiting vertical rods are connected at intervals in the horizontal direction within the frame. When the conveyor belt drives the lifting frame to pass through the two limiting vertical rods, the two leveling blocks can respectively abut against the sides of the two limiting vertical rods away from each other. When the conveyor belt drives the lifting frame to move in the vertical direction, the two limiting vertical rods penetrate between the two leveling blocks relatively, so that the two leveling blocks respectively abut against the sides of the two limiting vertical rods away from each other. In this way, the movement posture of the lifting frame can be restricted, preventing the lifting frame from deflecting relative to the connecting seat, further improving the stability of the lifting frame during up and down movement, and keeping the supporting arm transferring the article smoothly.
[0009] As a further improvement of the above technical solution, the counterweight plate can move downward to the tops of the two limiting vertical rods. The counterweight plate and the limiting vertical rods are both used for limiting the deflection of the lifting frame. Since the counterweight plate can move down to the tops of the two limiting vertical rods, that is, the deflection limit of the counterweight block on the lifting frame and the deflection limit of the limiting vertical rods on the lifting frame can be continuously connected, so as to ensure that the support arm stably transfers the product up and down.
[0010] As a further improvement of the above technical solution, guiding sections are respectively arranged at the bottoms of the two limiting vertical rods, and the two guiding sections incline downward towards the direction of approaching each other. During the rotary motion of the lifting frame, when the lifting frame moves upward from the lowest point to the two limiting vertical rods, the bottoms of the two guiding sections are separated by a relatively short distance, which can ensure that they enter between the two leveling blocks relatively. As the two guiding sections incline upward for guiding, the two leveling blocks can be moved between the two limiting vertical rods. In this way, it can be ensured that the two limiting vertical rods adjust the attitude of the lifting frame through the leveling blocks, and the risk of the leveling blocks colliding and interfering with the bottoms of the limiting vertical rods and failing is reduced.
[0011] As a further improvement of the above technical solution, the leveling block is rotatably connected to the lifting frame. The leveling block can rotate relative to the lifting frame. When the two leveling blocks respectively abut against the opposite sides of the two limiting vertical rods for limiting, the two leveling blocks can rotate on the two limiting vertical rods respectively, so as to reduce the friction of the leveling blocks and make the lifting frame move more smoothly relative to the limiting vertical rods.
[0012] As a further improvement of the above technical solution, the conveying device includes a motor, an upper gear and a lower gear. The motor is connected to the machine frame, the upper gear and the lower gear are respectively rotatably connected inside the machine frame, the conveyor belt is drivingly connected to the upper gear and the lower gear, and the motor is drivingly connected to the lower gear. The upper gear and the lower gear respectively stretch the conveyor belt in the up and down directions to form a rotary structure. During operation, the motor drives the lower gear to rotate. Since the lower gear meshes with the conveyor belt, the conveyor belt is driven to rotate between the upper gear and the lower gear.
[0013] As a further improvement of the above technical solution, two upper gears and two lower gears are respectively arranged at intervals along the direction of their rotation axes. A conveyor belt is respectively connected between the two upper gears and the two lower gears. A plurality of the connecting seats are respectively connected to the two conveyor belts. The lifting frame is rotatably connected to the connecting seats facing each other on the two conveyor belts. An upper gear, a lower gear and a conveyor belt wound between the upper gear and the lower gear form a transmission group. Two transmission groups can be arranged at intervals along the direction of the rotation axis of the upper gear. At this time, the lifting frame is further connected to the connecting seats facing each other on the two transmission groups, which can effectively improve the force on the lifting frame along the direction of the rotation axis of the upper gear, reduce the stress on the upper gear and the lower gear at the rotation connection position, and enhance the stability of the support arm for supporting articles.
[0014] As a further improvement of the above technical solution, the lifting frame includes a rotating rod, a front connecting plate and a rear connecting plate. The rotating rod is respectively connected to the two connecting seats through bearings. The front connecting plate is connected to the front end of the rotating rod. The leveling fulcrum is arranged on the front connecting plate. The rear connecting plate is connected to the rear end of the rotating rod. The support arm is connected to the rear connecting plate. The two transmission groups are distributed in the front-rear direction. The rotating rod is respectively rotatably connected between the front and rear two connecting seats through bearings, so as to form a whole transmission pair that drives the support arm to rotate back and forth with the two front-rear arranged conveyor belts, improving the stability of the up-and-down transfer of articles.
[0015] As a further improvement of the above technical solution, two support arms are arranged at intervals in the left-right direction. During operation, the articles are supported by two support arms arranged at intervals in the left-right direction, further improving the stability of the up-and-down transfer of articles. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings required for the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, rather than all the embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.
[0017] Figure 1 It is the front view of the overall structure of the present invention.
[0018] Figure 2 It is the three-dimensional view of the cooperation of the upper gear, the lifting unit and the counterweight plate of the present invention.
[0019] In the attached drawings: 100 - frame, 210 - conveyor belt, 220 - upper gear, 230 - lower gear, 310 - connecting seat, 320 - lifting frame, 321 - supporting arm, 322 - leveling fulcrum, 323 - rotating rod, 324 - front connecting plate, 325 - rear connecting plate, 400 - counterweight plate, 500 - limiting vertical rod, 510 - guiding section. Detailed implementation mode
[0020] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the attached drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the attached drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.
[0021] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, rear, left, right, etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present invention.
[0022] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.
[0023] In the description of the present invention, unless otherwise clearly defined, words such as "set", "install", "connect", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.
[0024] Refer to Figure 1 And Figure 2, A continuous lifting conveyor, comprising a frame 100, a conveying device and a lifting unit. Among them, the conveying device is located inside the frame 100, and a conveyor belt 210 that can rotate and move in the vertical direction is provided inside the conveying device; the lifting unit includes a connecting seat 310 and a lifting frame 320. A plurality of the connecting seats 310 are connected to the conveyor belt 210. The lifting frame 320 is rotatably connected to one of the connecting seats 310. The rotation axis of the lifting frame 320 extends in the horizontal direction. A support arm 321 extending outside the frame 100 is provided on one side of the lifting frame 320, and a leveling fulcrum 322 extending inside the frame 100 is provided on the other side of the lifting frame 320. A plurality of the lifting units are arranged along the length direction of the conveyor belt 210; a counterweight plate 400 is slidably connected to the frame 100 in the vertical direction. The conveyor belt 210 drives the lifting frame 320 to move upward and makes the leveling fulcrum 322 abut against the bottom side of the counterweight plate 400.
[0025] As can be seen from the above, the support arm 321 is used to support the article. During operation, the conveyor belt 210 of the conveying device rotates and moves in the vertical direction inside the frame 100. A plurality of lifting frames 320 are respectively rotatably connected to the conveyor belt 210 through a plurality of connecting seats 310. The plurality of lifting frames 320 that follow the rotation and movement of the conveyor belt 210 can continuously load and unload the article. Due to its own gravity, the counterweight plate 400 has a tendency to slide downward to the bottom end of the stroke inside the frame 100. When the lifting frame 320 is driven to move upward until its leveling fulcrum 322 abuts against the bottom side of the counterweight plate 400, the pressure of the counterweight plate 400 on the leveling fulcrum 322 can adjust the movement posture of the lifting frame 320, so that the support arm 321 is kept horizontal and the article is lifted upward. Especially when the lifting frame 320 moves upward to the rotation vertex of the conveyor belt 210, by using the gravity of the counterweight plate 400 to keep pressing down on the leveling fulcrum 322, the lifting frame 320 can be rotated and positioned on the connecting seat 310 to ensure stable upward lifting of the article. When the lifting frame 320 falls from the rotation vertex of the conveyor belt 210, the counterweight plate 400 also follows and falls under the action of gravity, continuing to press down on the leveling fulcrum 322, so that the support arm 321 can also move smoothly downward from the highest point until the lifting frame 320 moves to the bottom end of the stroke of the counterweight plate 400. In this way, the rotating conveyor belt 210 drives a plurality of lifting frames 320 to rotate cyclically, realizing continuous loading and unloading of the article, and using the counterweight plate 400 to cleverly level the lifting frame 320 to ensure stable transfer of the article, thereby improving the efficiency and stability of the transfer of the article.
[0026] There are various structural forms for forming the leveling fulcrum 322 on the lifting frame 320. Mainly, after a stable contact is formed between the leveling fulcrum 322 and the counterweight plate 400, the relative rotation between the lifting frame 320 and the counterweight plate 400 can be restricted. For example, a straight plate is connected to the lifting frame 320, and by using the straight plate to abut against the bottom side of the counterweight plate 400, a stable contact can be formed with the counterweight plate 400. In this embodiment, the relative rotation between the lifting frame 320 and the counterweight plate 400 is restricted by forming at least two leveling fulcrums 322. Specifically, leveling blocks are connected to the lifting frame 320, and the leveling blocks form the leveling fulcrums 322, and at least two leveling blocks are arranged at intervals in the horizontal direction. When the lifting frame 320 moves up to the position of the counterweight plate 400, at least two leveling blocks on the counterweight plate 400 respectively form two spaced-apart leveling fulcrums 322 and abut against the bottom side of the counterweight plate 400. At this time, by the downward pressure limit of the counterweight plate 400 on at least two leveling blocks, the deflection of the lifting frame 320 can be restricted, so that the lifting frame 320 can move upward in parallel with the counterweight plate 400, and the stable upward lifting of the article can be realized. Similarly, by using the counterweight plate 400 to limit the deflection of the lifting frame 320, the stable downward movement of the article can be realized. In practical applications, the number of leveling blocks can be two, and two horizontally arranged leveling blocks can form a horizontal straight line, abutting against the bottom side of the counterweight plate 400 to define the movement posture of the lifting frame 320.
[0027] In the above embodiment, the restriction of the lifting frame 320 by the up-and-down sliding of the counterweight plate 400 can be directly utilized to realize the limit of the lifting frame 320 at the top position during the rotary motion and the up-and-down movement on both sides. However, at this time, the lifting frame 320 needs to drive the counterweight plate 400 to move a large distance. In order to reduce the moving load of the lifting frame 320, the limit of the lifting frame 320 at the top position during the rotary motion by the counterweight plate 400 can be retained, and another structural form is adopted for the limit during the up-and-down movement on both sides. Specifically, two limit vertical rods 500 are connected at intervals in the horizontal direction in the frame 100. The two limit vertical rods 500 are arranged at intervals, which can better adapt to the distance between the two leveling blocks. When the conveyor belt 210 drives the lifting frame 320 to pass through the two limit vertical rods 500, the two leveling blocks can respectively abut against the mutually remote sides of the two limit vertical rods 500. When the conveyor belt 210 drives the lifting frame 320 to move vertically, the two limit vertical rods 500 relatively penetrate between the two leveling blocks, so that the two leveling blocks respectively abut against the mutually remote sides of the two limit vertical rods 500. In this way, the movement posture of the lifting frame 320 can be restricted, preventing the lifting frame 320 from deflecting relative to the connecting seat 310, further improving the stability of the lifting frame 320 during the up-and-down movement, and keeping the support arm 321 smoothly transporting the article.
[0028] In practical applications, taking two limit vertical rods 500 as a limit group, two groups can be arranged at intervals along the horizontal direction on the rack 100, so as to limit the posture of the lifting frame 320 when it is on the rising side and the descending side during the rotary motion. At this time, after the lifting frame 320 passes through a limit group for upward movement limit during the rotary motion and reaches the counterweight plate 400 to realize the limit when switching from upward movement to downward movement, and then passes through another limit group for downward movement limit.
[0029] The counterweight plate 400 is mainly used for adjusting the posture of the lifting frame 320 when it is at the top position during the rotary motion, while the limit vertical rod 500 is mainly used for adjusting the posture of the lifting frame 320 when it is at both sides during the rotary motion. In order to make the posture adjustment and switching between the counterweight plate 400 and the limit vertical rod 500 of the lifting frame 320 more smooth, in this embodiment, the counterweight plate 400 can move downward to the top ends of the two limit vertical rods 500. Both the counterweight plate 400 and the limit vertical rod 500 are used for deflecting limit of the lifting frame 320. Since the counterweight plate 400 can move downward to the top ends of the two limit vertical rods 500, that is, the deflecting limit of the counterweight block on the lifting frame 320 and the deflecting limit of the limit vertical rod 500 on the lifting frame 320 can be continuously connected, so as to ensure that the support arm 321 stably transfers the product up and down.
[0030] In the above embodiment, the leveling block can be a cube, or a cylinder, etc. When the leveling block moves up and down relative to the limit vertical rod 500, there is sliding friction between the leveling block and the limit vertical rod 500, which will cause greater friction to both of them. Therefore, in this embodiment, the leveling block is rotatably connected to the lifting frame 320, and the rotation axis of the leveling block is parallel to the center line of the conveyor belt 210. The leveling block can rotate relative to the lifting frame 320. When the two leveling blocks respectively abut against the far sides of the two limit vertical rods 500 for limiting, the two leveling blocks can respectively rotate on the two limit vertical rods 500, so as to reduce the friction of the leveling block and make the lifting frame 320 move more smoothly relative to the limit vertical rod 500.
[0031] Since there is no attitude limit when the lifting frame 320 is in the bottom position during the slewing motion, it mainly relies on the gravity of the lifting frame 320 to rotate on the connecting seat 310 to adjust the position. When the lifting frame 320 moves to the ascending side during the slewing motion, the two limit vertical rods 500 need to be relatively inserted between the two leveling blocks to limit the upward movement of the lifting frame 320. In order to make the limit vertical rods 500 better cooperate with the leveling blocks for limiting, in this embodiment, guide sections 510 are respectively provided at the bottom ends of the two limit vertical rods 500, and the two guide sections 510 are inclined downward in the direction of approaching each other. During the slewing motion of the lifting frame 320, when the lifting frame 320 moves upward from the lowest point to the two limit vertical rods 500, the bottom ends of the two guide sections 510 are at a relatively close distance, which can ensure that they enter between the two leveling blocks relatively. As the two guide sections 510 are inclined upward, the two leveling blocks can be moved between the two limit vertical rods 500. In this way, it can ensure the role of the two limit vertical rods 500 in adjusting the attitude of the lifting frame 320 through the leveling blocks, and reduce the risk of failure due to collision interference between the leveling blocks and the bottom ends of the limit vertical rods 500.
[0032] The conveying device is mainly used for the conveyor belt 210 that forms a slewing motion. In this embodiment, the conveying device includes a motor, an upper gear 220 and a lower gear 230. The motor is connected to the frame 100, and the upper gear 220 and the lower gear 230 are respectively rotatably connected inside the frame 100. The upper gear 220 is located above the lower gear 230, and the rotation axes of the upper gear 220 and the lower gear 230 are parallel to each other. The conveyor belt 210 bypasses the upper gear 220 and the lower gear 230, and the conveyor belt 210 is drivingly connected to the upper gear 220 and the lower gear 230. The motor is drivingly connected to the lower gear 230. The upper gear 220 and the lower gear 230 respectively stretch the conveyor belt 210 in the up and down directions to form a slewing structure. During operation, the motor drives the lower gear 230 to rotate. Since the lower gear 230 meshes with the conveyor belt 210, the conveyor belt 210 is driven to slewingly move between the upper gear 220 and the lower gear 230.
[0033] In the above embodiments, the number of the upper gear 220 and the lower gear 230 can be set to one. At this time, the lifting frame 320 is mainly connected to the conveyor belt 210 through the connecting seat 310. When the lifting frame 320 moves upward, one side needs to lift the counterweight, and the other side needs to drive the support arm 321 to lift the article. At this time, the load on the conveyor belt 210 is relatively large. In order to improve the overall structural stability, in this embodiment, two upper gears 220 and two lower gears 230 are respectively arranged at intervals along the direction of their rotation axes. The conveyor belts 210 are respectively connected between the two upper gears 220 and the two lower gears 230 in a driving manner. A plurality of connecting seats 310 are respectively connected to the two conveyor belts 210. The lifting frame 320 is rotatably connected to the connecting seats 310 facing each other on the two conveyor belts 210. One upper gear 220, one lower gear 230 and one conveyor belt 210 wound between the upper gear 220 and the lower gear 230 form a transmission group. Two transmission groups can be arranged at intervals along the direction of the rotation axis of the upper gear 220. At this time, the lifting frame 320 is connected to the connecting seats 310 facing each other of the two transmission groups, which can effectively improve the force on the lifting frame 320 along the direction of the rotation axis of the upper gear 220, reduce the stress on the upper gear 220 and the lower gear 230 at the rotatable connection position, and enhance the stability of the support arm 321 for supporting the article.
[0034] As a specific embodiment of the structure of the lifting frame 320, the lifting frame 320 includes a rotating rod 323, a front connecting plate 324 and a rear connecting plate 325. The rotating rod 323 is respectively connected to the two connecting seats 310 through bearings. The front connecting plate 324 is connected to the front end of the rotating rod 323. The leveling fulcrum 322 is arranged on the front connecting plate 324. The rear connecting plate 325 is connected to the rear end of the rotating rod 323. The support arm 321 is connected to the rear connecting plate 325. The two transmission groups are distributed in the front-rear direction. The rotating rod 323 is respectively rotatably connected between the front and rear connecting seats 310 through bearings, so as to form a transmission pair that drives the support arm 321 to rotate in a circular motion with the two front-rear arranged conveyor belts 210, and improve the stability of the up-and-down transfer of the article.
[0035] The support arm 321 is mainly used for supporting the article and can be in a flat plate structure. In order to reduce its own weight and ensure the effect of supporting the article, in this embodiment, two support arms 321 are arranged at intervals along the left-right direction. During operation, the article is supported by two support arms 321 arranged at intervals along the left-right direction, further improving the stability of the up-and-down transfer of the article.
[0036] The above has specifically described the preferred embodiments of the present utility model. However, the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A continuous lifting conveyor, characterized in that: Comprising: A frame (100); A conveying device, located within the frame (100), having a conveyor belt (210) that can rotate and move in the up and down directions; A lifting unit, including a connecting seat (310) and a lifting frame (320), a plurality of the connecting seats (310) are connected to the conveyor belt (210), the lifting frame (320) is rotatably connected to one of the connecting seats (310), the rotation axis of the lifting frame (320) extends in the horizontal direction, a support arm (321) extending outward from the frame (100) is provided on one side of the lifting frame (320), a leveling fulcrum (322) extending inward from the frame (100) is provided on the other side of the lifting frame (320), and a plurality of the lifting units are arranged along the length direction of the conveyor belt (210); A counterweight plate (400), slidably connected within the frame (100) in the up and down directions, and the conveyor belt (210) drives the lifting frame (320) to move upward so that the leveling fulcrum (322) abuts against the bottom side of the counterweight plate (400).
2. The continuous lifting conveyor according to claim 1, wherein: A leveling block is connected to the lifting frame (320), the leveling block forms the leveling fulcrum (322), and at least two leveling blocks are arranged at intervals in the horizontal direction.
3. The continuous elevator conveyor according to claim 2, characterized in that: Two limiting vertical rods (500) are connected at intervals in the horizontal direction within the frame (100). When the conveyor belt (210) drives the lifting frame (320) to pass through the two limiting vertical rods (500), the two leveling blocks can respectively abut against the sides of the two limiting vertical rods (500) that are away from each other.
4. A continuous lifting conveyor according to claim 3, characterized in that: The counterweight plate (400) can move downward to the tops of the two limiting vertical rods (500).
5. A continuous lifting conveyor according to claim 3, characterized in that: Guide sections (510) are respectively provided at the bottom ends of the two limiting vertical rods (500), and the two guide sections (510) incline downward in the direction of approaching each other.
6. The continuous lifting conveyor according to claim 2, wherein: The leveling block is rotatably connected to the lifting frame (320).
7. A continuous lifting conveyor according to claim 1, wherein: The conveying device includes a motor, an upper gear (220) and a lower gear (230), the motor is connected to the frame (100), the upper gear (220) and the lower gear (230) are respectively rotatably connected within the frame (100), the conveyor belt (210) is drivingly connected to the upper gear (220) and the lower gear (230), and the motor is drivingly connected to the lower gear (230).
8. A continuous lifting conveyor according to claim 7, characterized in that: Two upper gears (220) and two lower gears (230) are respectively arranged at intervals along their rotation axis directions, conveyor belts (210) are respectively drivingly connected between the two upper gears (220) and the two lower gears (230), a plurality of the connecting seats (310) are respectively connected to the two conveyor belts (210), and the lifting frame (320) is rotatably connected to the connecting seats (310) that are opposite to each other on the two conveyor belts (210).
9. A continuous lifting conveyor according to claim 8, characterized in that: The lifting frame (320) includes a rotating rod (323), a front connecting plate (324) and a rear connecting plate (325). The rotating rod (323) is respectively connected to the two connecting seats (310) through bearings. The front connecting plate (324) is connected to the front end of the rotating rod (323). The leveling fulcrum (322) is arranged on the front connecting plate (324). The rear connecting plate (325) is connected to the rear end of the rotating rod (323). The support arm (321) is connected to the rear connecting plate (325).
10. A continuous lifting conveyor according to claim 9, wherein: There are two support arms (321) arranged at intervals in the left - right direction.