A pneumatic lifting mechanism facilitating maintenance

Abstract

This utility model relates to the field of lifting mechanism technology, specifically a pneumatic lifting mechanism that is easy to maintain. It includes a base plate, a top plate, and a cylinder. A fixed cylinder is fixedly connected to the upper end face of the base plate, and a sliding cylinder slidably connected to the fixed cylinder is fixedly connected to the lower end face of the top plate. A first connecting block is fixedly connected to the lower end face of the cylinder. A first locking mechanism is provided between the first connecting block and the base plate. A second connecting block is fixedly connected to the output end of the cylinder, and a second locking mechanism is provided between the second connecting block and the sliding cylinder. The first locking mechanism includes a limiting ring fixedly connected to the upper end face of the base plate. A rotating ring is rotatably connected to the outer wall of the limiting ring via a bearing. Multiple circumferentially distributed connecting rods are rotatably connected to the upper end face of the rotating ring via a rotating shaft. A groove matching the first connecting block is provided on the upper end face of the base plate. The two ends of the cylinder are connected by a quick-release locking mechanism, making the maintenance of the cylinder extremely convenient.

Description

Technical Field

[0001] This utility model relates to the field of lifting mechanism technology, and specifically discloses a pneumatic lifting mechanism that is easy to maintain. Background Technology

[0002] Pneumatic lifting mechanisms are increasingly used in vertical material handling in factories, warehouses, agriculture, logistics, and other industries and systems. Chinese Patent CN219194388U discloses a pneumatic lifting mechanism that is easy to maintain. It includes a base plate, a fixed cylinder welded to the upper end of the base plate, a sliding cylinder slidably connected to the outer side of the fixed cylinder, a top plate welded to the upper end of the sliding cylinder, a cylinder in contact with the upper end of the base plate, a connecting block fixedly connected to the lower end of the cylinder, a slidable connection between the connecting block and the base plate, a pin slidably connected inside the base plate, a spring installed inside the base plate, a lever welded to the pin, a cylinder rod in contact with the top plate, a connecting sleeve slidably connected to the outer side of the cylinder rod, and a wedge welded to the connecting sleeve. By setting up the connecting block, pin, insertion hole, spring, lever, and other structures, the lever moves the pin, allowing for easy engagement and disengagement between the pin and the connecting block under the action of the spring. This facilitates the disassembly and assembly of the cylinder and the base plate, and makes disassembly and repair easy after cylinder damage.

[0003] The aforementioned document discloses a pneumatic lifting mechanism that is easy to maintain. However, when disassembling the bottom of the cylinder, two levers need to be pulled simultaneously, making it impossible for a single person to complete the disassembly and assembly. Furthermore, the top of the cylinder is connected to the top plate by bolts, which makes disassembly and assembly inconvenient. Therefore, a pneumatic lifting mechanism that is easy to maintain is needed to solve this problem. Utility Model Content

[0004] This utility model proposes a pneumatic lifting mechanism that is easy to maintain. The two ends of the cylinder are connected by a snap-fit ​​mechanism that can be quickly disassembled and assembled, making the maintenance of the cylinder extremely convenient.

[0005] This utility model is implemented as follows: a pneumatic lifting mechanism that is easy to maintain includes a base plate, a top plate, and a cylinder. A fixed cylinder is fixedly connected to the upper end face of the base plate, and a sliding cylinder that is slidably connected to the fixed cylinder is fixedly connected to the lower end face of the top plate. A first connecting block is fixedly connected to the lower end face of the cylinder. A first locking mechanism is provided between the first connecting block and the base plate. A second connecting block is fixedly connected to the output end of the cylinder, and a second locking mechanism is provided between the second connecting block and the sliding cylinder. The first locking mechanism includes a limiting ring fixedly connected to the upper surface of the base plate. The outer wall of the limiting ring is rotatably connected to a rotating ring via a bearing. The upper surface of the rotating ring is rotatably connected to multiple circumferentially distributed connecting rods via a rotating shaft. The upper surface of the base plate has a groove matching the first connecting block. The interior of the base plate has multiple sliding grooves communicating with the grooves. Each of the multiple sliding grooves is slidably connected to a locking rod. The outer wall of the first connecting block has multiple locking holes matching the locking rods. The upper surfaces of the multiple locking rods are fixedly connected to a connecting shaft extending to the top of the base plate. The other ends of the multiple connecting rods are rotatably connected to the multiple connecting shafts respectively. A first spring is provided between the inner wall of each of the multiple sliding grooves and the locking rod.

[0006] As a preferred embodiment of the pneumatic lifting mechanism of this utility model that is easy to maintain, the second locking mechanism includes a mounting plate fixedly connected to the lower end face of the top plate. The inner wall of the mounting plate is slidably connected with a pin that passes through the slide cylinder. The outer wall of the second connecting block is provided with a through hole that matches the pin. The outer wall of the pin is fixedly connected with two limiting plates. The outer side of the pin is sleeved with a second spring located between the left limiting plate and the mounting plate.

[0007] As a preferred embodiment of the pneumatic lifting mechanism of this utility model that is easy to maintain, the second connecting block is slidably connected to the inner wall of the slide cylinder.

[0008] As a preferred embodiment of the pneumatic lifting mechanism of this utility model that is easy to maintain, both the first connecting block and the second connecting block have rectangular cross-sections.

[0009] As a preferred embodiment of the pneumatic lifting mechanism of this utility model that is easy to maintain, both the fixed cylinder and the sliding cylinder have rectangular cross-sections.

[0010] As a preferred embodiment of the pneumatic lifting mechanism of this utility model that is easy to maintain, a lever is fixedly connected to the outer wall of the rotating ring.

[0011] The beneficial effects of this utility model are: 1. This utility model, by setting a first snap-fit ​​mechanism and a second snap-fit ​​mechanism, uses a rotating ring, connecting rod and spring-driven snap-fit ​​rod to achieve quick disassembly and assembly of the bottom of the cylinder, and achieves quick connection of the top of the cylinder through the cooperation of the pin and spring, making the entire cylinder installation and disassembly process simple and efficient, greatly facilitating subsequent maintenance and repair work.

[0012] 2. By setting the cross-sections of the first connecting block, the second connecting block, the fixed cylinder, and the sliding cylinder to rectangles, rotation of each component during connection and use is effectively prevented, ensuring that the locking hole and locking rod, and the insertion hole and pin are always aligned, thus improving the reliability and stability of the mechanism connection, while ensuring the smoothness and safety of the pneumatic lifting mechanism operation. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is an overall structural diagram of a pneumatic lifting mechanism that is easy to maintain according to this utility model.

[0015] Figure 2 This is a front sectional view of a pneumatic lifting mechanism that is easy to maintain according to this utility model.

[0016] Figure 3 This is a structural diagram of the cylinder of this utility model.

[0017] Figure 4 This is a structural diagram of the top plate of this utility model.

[0018] The markings in the diagram are: 1. Base plate; 2. Top plate; 3. Fixed cylinder; 4. Sliding cylinder; 5. Rotary ring; 6. Connecting rod; 7. Sliding groove; 8. Locking rod; 9. Connecting shaft; 10. First spring; 11. Cylinder; 12. First connecting block; 13. Locking hole; 14. Second connecting block; 15. Mounting plate; 16. Pin; 17. Limiting plate; 18. Second spring; 19. Insertion hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0020] Please see Figure 1-4 A pneumatic lifting mechanism that is easy to maintain includes a base plate 1, a top plate 2 and a cylinder 11. A fixed cylinder 3 is fixedly connected to the upper end face of the base plate 1, and a sliding cylinder 4 that is slidably connected to the fixed cylinder 3 is fixedly connected to the lower end face of the top plate 2. A first connecting block 12 is fixedly connected to the lower end face of the cylinder 11. A first snap-fit ​​mechanism is provided between the first connecting block 12 and the base plate 1. A second connecting block 14 is fixedly connected to the output end of the cylinder 11. A second snap-fit ​​mechanism is provided between the second connecting block 14 and the sliding cylinder 4. The first locking mechanism includes a limiting ring fixedly connected to the upper end face of the base plate 1. The outer wall of the limiting ring is rotatably connected to a rotating ring 5 via a bearing. The upper end face of the rotating ring 5 is rotatably connected to multiple circumferentially distributed connecting rods 6 via a rotating shaft. The upper end face of the base plate 1 is provided with a groove that matches the first connecting block 12. The interior of the base plate 1 is provided with multiple sliding grooves 7 that communicate with the grooves. The interior of each sliding groove 7 is slidably connected to a locking rod 8. The outer wall of the first connecting block 12 is provided with multiple locking holes 13 that match the locking rods 8. The upper end face of each locking rod 8 is fixedly connected to a connecting shaft 9 that extends to the top of the base plate 1. The other end of each connecting rod 6 is rotatably connected to the connecting shaft 9. A first spring 10 is provided between the inner wall of each sliding groove 7 and the locking rod 8.

[0021] In this embodiment: When disassembling the cylinder 11, the rotating ring 5 is rotated counterclockwise by the lever. The rotating ring 5 drives multiple locking rods 8 to slide outward along the slide groove 7 through the connecting rod 6, so that the locking rods 8 disengage from the locking holes 13, thereby removing the cylinder 11 from the base plate 1. When installing the cylinder 11, the rotating ring 5 is also rotated counterclockwise by the lever. The rotating ring 5 drives multiple locking rods 8 to slide outward along the slide groove 7 through the connecting rod 6, and compresses the first spring 10, so that the locking rods 8 retract into the slide groove 7. The first connecting block 12 on the lower end face of the cylinder 11 is inserted into the groove in the base plate 1. The rotating ring 5 is released, and the multiple locking rods 8 slide inward along the slide groove 7 under the elastic force of the first spring 10, so that the locking rods 8 are locked into the locking holes 13. The first connecting block 12 is fixed, and the cylinder 11 is fixed to the base plate 1. This utility model connects the cylinder 11 and the base plate 1 through the first locking mechanism, which is convenient for installation and disassembly and easy for maintenance.

[0022] As a technical optimization of this utility model, the second snap-fit ​​mechanism includes a mounting plate 15 fixedly connected to the lower end face of the top plate 2. The inner wall of the mounting plate 15 is slidably connected to a pin 16 that passes through the slide cylinder 4. The outer wall of the second connecting block 14 is provided with a through hole 19 that matches the pin 16. The outer wall of the pin 16 is fixedly connected to two limiting plates 17. The outer side of the pin 16 is sleeved with a second spring 18 located between the left limiting plate 17 and the mounting plate 15.

[0023] In this embodiment: When disassembling cylinder 11, pull pin 16 to the right to disengage pin 16 from socket 19, thus removing the output end of cylinder 11 from top plate 2. When installing cylinder 11, similarly pull pin 16 to the right to disengage pin 16 from slide cylinder 4 and compress second spring 18. Insert second connecting block 14 into slide cylinder 4, aligning pin 16 with socket 19. Release pin 16, and pin 16, under the elastic force of second spring 18, will snap into socket 19, fixing second connecting block 14. This fixes the output end of cylinder 11 to top plate 2. This utility model connects the output end of cylinder 11 to top plate 2 through second snap-fit ​​mechanism, making installation and disassembly convenient and maintenance easy.

[0024] As a technical optimization of this utility model, the second connecting block 14 is slidably connected to the inner wall of the slide cylinder 4.

[0025] In this embodiment: by sliding the second connecting block 14 to the inner wall of the slide cylinder 4, the second connecting block 14 is prevented from rotating inside the slide cylinder 4, which facilitates the alignment of the pin 16 with the socket 19.

[0026] As a technical optimization of this utility model, the cross-sections of the first connecting block 12 and the second connecting block 14 are both rectangular.

[0027] In this embodiment, by setting the cross-sections of both the first connecting block 12 and the second connecting block 14 to rectangles, rotation of the first connecting block 12 and the second connecting block 14 within the bottom plate 1 and the top plate 2 is prevented.

[0028] As a technical optimization of this utility model, the cross-sections of both the fixed cylinder 3 and the sliding cylinder 4 are rectangular.

[0029] In this embodiment, by setting the cross-sections of both the fixed cylinder 3 and the sliding cylinder 4 to rectangular, the sliding cylinder 4 is prevented from rotating on the outer wall of the fixed cylinder 3.

[0030] As a technical optimization of this utility model, a lever is fixedly connected to the outer wall of the rotating ring 5.

[0031] In this embodiment: a lever is fixedly connected to the outer wall of the rotating ring 5 to facilitate the rotation of the rotating ring 5.

[0032] The working principle and usage process of this utility model are as follows: When disassembling the cylinder 11, firstly, rotate the rotating ring 5 counterclockwise using the lever. The rotating ring 5 drives multiple locking rods 8 to slide outward along the slide groove 7 via the connecting rod 6, causing the locking rods 8 to disengage from the locking holes 13, thereby removing the cylinder 11 from the base plate 1. Then, pull the pin 16 to the right to disengage the pin 16 from the insertion hole 19, thus removing the output end of the cylinder 11 from the top plate 2. When installing the cylinder 11, firstly, rotate the rotating ring 5 counterclockwise using the lever. The rotating ring 5 drives multiple locking rods 8 to slide outward along the slide groove 7 via the connecting rod 6, compressing the first spring 10, causing the locking rods 8 to retract into the slide groove 7. Insert the first connecting block 12 on the lower end face of the cylinder 11 into the groove in the base plate 1, and then release the rotating ring 5. Multiple locking rods 8 slide inward along the slide groove 7 under the elastic force of the first spring 10, so that the locking rods 8 are locked into the locking holes 13, and the first connecting block 12 is fixed, thus fixing the cylinder 11 to the base plate 1. Then, the pin 16 is pulled to the right, so that the pin 16 is dislodged from the slide cylinder 4 and the second spring 18 is compressed, and the second connecting block 14 is inserted into the slide cylinder 4, so that the pin 16 is aligned with the insertion hole 19. The pin 16 is released, and the pin 16 is locked into the insertion hole 19 under the elastic force of the second spring 18, thus fixing the second connecting block 14, thus fixing the output end of the cylinder 11 to the top plate 2. This utility model connects the cylinder 11 to the base plate 1 and the top plate 2 through the first locking mechanism and the second locking mechanism, which is convenient for installation and disassembly and easy for maintenance.

[0033] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A pneumatic lifting mechanism that is easy to maintain, comprising a base plate (1), a top plate (2), and a cylinder (11), wherein a fixed cylinder (3) is fixedly connected to the upper end face of the base plate (1), and a sliding cylinder (4) that is slidably connected to the fixed cylinder (3) is fixedly connected to the lower end face of the top plate (2), characterized in that: The lower end face of the cylinder (11) is fixedly connected to a first connecting block (12), and a first snap-fit ​​mechanism is provided between the first connecting block (12) and the base plate (1). The output end of the cylinder (11) is fixedly connected to a second connecting block (14), and a second snap-fit ​​mechanism is provided between the second connecting block (14) and the slide cylinder (4). The first locking mechanism includes a limiting ring fixedly connected to the upper end face of the base plate (1). The outer wall of the limiting ring is rotatably connected to a rotating ring (5) via a bearing. The upper end face of the rotating ring (5) is rotatably connected to a plurality of circumferentially distributed connecting rods (6) via a rotating shaft. The upper end face of the base plate (1) is provided with a groove matching the first connecting block (12). The interior of the base plate (1) is provided with a plurality of sliding grooves (7) communicating with the grooves. The interior of each of the plurality of sliding grooves (7) is slidably connected to a locking rod (8). The outer wall of the first connecting block (12) is provided with a plurality of locking holes (13) matching the locking rods (8). The upper end face of each of the plurality of locking rods (8) is fixedly connected to a connecting shaft (9) extending above the base plate (1). The other end of each of the plurality of connecting rods (6) is rotatably connected to the plurality of connecting shafts (9). A first spring (10) is provided between the inner wall of each of the plurality of sliding grooves (7) and the locking rods (8).

2. The pneumatic lifting mechanism for easy maintenance according to claim 1, characterized in that: The second snap-fit ​​mechanism includes a mounting plate (15) fixedly connected to the lower end face of the top plate (2). The inner wall of the mounting plate (15) is slidably connected to a pin (16) that passes through the slide cylinder (4). The outer wall of the second connecting block (14) is provided with a hole (19) that matches the pin (16). The outer wall of the pin (16) is fixedly connected to two limiting plates (17). The outer side of the pin (16) is sleeved with a second spring (18) located between the left limiting plate (17) and the mounting plate (15).

3. The pneumatic lifting mechanism for easy maintenance according to claim 1, characterized in that: The second connecting block (14) is slidably connected to the inner wall of the slide (4).

4. The pneumatic lifting mechanism for easy maintenance according to claim 1, characterized in that: The cross-sections of the first connecting block (12) and the second connecting block (14) are both rectangular.

5. A pneumatic lifting mechanism for easy maintenance according to claim 1, characterized in that: Both the fixed cylinder (3) and the sliding cylinder (4) have rectangular cross-sections.

6. A pneumatic lifting mechanism for easy maintenance according to claim 1, characterized in that: A lever is fixedly connected to the outer wall of the rotating ring (5).

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