Auxiliary tool for disassembling air cylinder
By designing an auxiliary tool for cylinder disassembly, and utilizing a disassembly ring and a compression rod to squeeze the limiting spring, the problem of difficult and inefficient disassembly of printing press cylinders was solved, achieving a convenient and efficient disassembly process and reducing spare parts procurement costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-06
AI Technical Summary
The cylinders of existing printing presses are difficult to disassemble, inefficient, and the lack of specialized tools makes operation difficult.
A cylinder disassembly auxiliary tool was designed, including a disassembly ring and multiple compression rods. The rods are inserted into the cylinder through the disassembly hole, and the cylinder is easily disassembled by squeezing the limiting spring.
It improves the ease and efficiency of cylinder disassembly, reduces the difficulty of operation, avoids damage to the cylinder, and saves on spare parts procurement costs.
Smart Images

Figure CN223971617U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing equipment technology, and in particular to an auxiliary tool for disassembling a cylinder. Background Technology
[0002] In modern printing presses, the operation of various actuators relies on cylinders of various sizes and models, which are widely used in both quantity and type. After several years of use, these cylinders are prone to malfunction. The most common malfunctions are threefold: 1. Failure of the piston rod throat seal, resulting in severe air leakage; 2. Wear of the O-ring sealing the upper cavity of the cylinder body on the end cover; 3. Wear of the rubber piston on the piston rod.
[0003] When any of the three common malfunctions mentioned above occurs, it means that the cylinder is damaged and cannot meet production needs. There is a type of easily disassembled cylinder with multiple disassembly holes on its cylinder body surface, which are connected to retaining rings. When disassembly is required, workers press the retaining rings inward through the disassembly holes to separate the cylinder body from the cylinder head. Since there are no specific disassembly tools for this type of cylinder, workers typically use thin rods or similar tools to press the retaining rings through the disassembly holes. This method of disassembling the cylinder is difficult to operate, resulting in low disassembly efficiency. Utility Model Content
[0004] In view of the above problems, this utility model is proposed to provide a cylinder disassembly auxiliary tool that overcomes or at least partially solves the above problems, and can solve the problems of high difficulty and low efficiency in existing cylinder disassembly, thereby improving the convenience and efficiency of cylinder disassembly.
[0005] Specifically, this utility model provides a cylinder disassembly auxiliary tool for disassembling cylinders with disassembly holes on the outer surface of the cylinder body. The cylinder disassembly auxiliary tool includes:
[0006] A disassembly ring is provided for sleeved on the outside of the cylinder; the disassembly ring is provided with a plurality of mounting holes; the mounting holes penetrate along the radial direction of the disassembly ring, and the plurality of mounting holes are arranged along the circumferential direction of the disassembly ring;
[0007] Multiple compression rods are provided, each of which is slidably inserted into a mounting hole along the radial direction of the disassembly ring; the inner end of each compression rod can be inserted into the disassembly hole of the cylinder.
[0008] Optionally, the compression rod is a screw; the mounting hole is a threaded hole; and the compression rod is threaded into the mounting hole.
[0009] Optionally, the cylinder disassembly aid also includes:
[0010] A fixing component is provided with a fixing hole; the fixing component is used to fix it at a preset position and is fixedly connected to the cylinder body of the cylinder through the fixing hole.
[0011] Optionally, the cylinder disassembly aid also includes:
[0012] A puller tool and a connector, wherein the connector is fixedly provided with a connecting screw and a connecting hole, and the connecting screw and the connecting hole are coaxially arranged; the connecting screw is used to be threadedly connected to the puller tool, and the connecting hole is used to be connected to the outer end of the piston of the cylinder.
[0013] Optionally, the cylinder disassembly aid also includes:
[0014] An adjustment frame includes an adjustment base and multiple adjustment rods; the adjustment base is horizontally positioned; the preset position is located on the adjustment base; the adjustment rods are vertically positioned, with their lower ends fixed to the adjustment base and their upper ends connected to the disassembly ring.
[0015] Optionally, the adjusting rod is a telescopic rod capable of adjustment and scheduling.
[0016] This utility model's cylinder disassembly auxiliary tool features a disassembly ring and multiple compression rods, with the inner ends of the compression rods able to be inserted into the disassembly hole of the cylinder. The disassembly ring securely mounts the compression rods, and the design allows the compression rods to be inserted into the disassembly hole through mounting holes. When the compression rods move towards the cylinder, their inner ends connect with the cylinder's limiting spring through the disassembly hole, and the pressure on the spring increases with the inward displacement of the compression rods. Furthermore, the combined compression of multiple compression rods compresses the spring from multiple directions, significantly improving the efficiency and convenience of cylinder disassembly while preventing damage to the cylinder. This ensures normal operation even after replacing easily damaged parts, and also saves on spare parts procurement costs.
[0017] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description
[0018] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0019] Figure 1 This is a schematic structural diagram of a cylinder disassembly auxiliary tool according to an embodiment of the present utility model;
[0020] Figure 2 This is a schematic structural diagram of a cylinder disassembly auxiliary tool according to an embodiment of the present utility model;
[0021] Figure 3 This is a schematic structural diagram of the cylinder disassembly auxiliary tool according to an embodiment of the present invention during operation;
[0022] Figure 4 This is a schematic internal structure diagram of a cylinder disassembly auxiliary tool according to an embodiment of the present invention during operation.
[0023] In the diagram: 100, cylinder block; 200, cylinder head; 400, disassembly ring; 410, mounting hole; 500, compression rod; 600, adjusting bracket; 610, adjusting rod; 620, adjusting base; 630, fixing component. Detailed Implementation
[0024] The following reference Figures 1 to 4 This description refers to a cylinder disassembly auxiliary tool according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.
[0025] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0028] Figure 1 This is a schematic structural diagram of a cylinder disassembly auxiliary tool, such as... Figure 1 As shown, and with reference Figures 2 to 4 This utility model provides a cylinder disassembly auxiliary tool for disassembling cylinders with disassembly holes on the outer surface of cylinder body 100. The cylinder disassembly auxiliary tool includes a disassembly ring 400 and multiple compression rods 500.
[0029] The disassembly ring 400 is fitted onto the outside of the cylinder, and the disassembly ring 400 is provided with a plurality of mounting holes 410. The mounting holes 410 penetrate along the radial direction of the disassembly ring 400, and the plurality of mounting holes 410 are arranged along the circumferential direction of the disassembly ring 400. Each compression rod 500 is slidably inserted into one of the mounting holes 410 along the radial direction of the disassembly ring 400, and the inner end of the compression rod 500 can be inserted into the disassembly hole of the cylinder.
[0030] Specifically, the disassembly ring 400 can securely mount the compression rod 500. The compression rod 500 can be inserted into the disassembly hole through the mounting hole 410. When the compression rod 500 moves towards the cylinder, its inner end connects to the cylinder's limiting spring through the disassembly hole, and the pressure on the spring increases with the inward displacement distance of the compression rod 500. Furthermore, the combined compression of multiple compression rods 500 can compress the spring in multiple directions, thereby greatly improving the disassembly efficiency and convenience of the cylinder.
[0031] During operation, the disassembly ring 400 is fitted onto the cylinder to be disassembled, with the mounting hole 410 and the disassembly hole coaxially aligned. Then, multiple compression rods 500 are pressed inwards, so that each compression rod 500 passes through its corresponding disassembly hole. The inner end of each compression rod 500 applies pressure inwards to the compression spring until the spring retracts, releasing the restriction on the cylinder head 200 and applying an outward pulling force to the cylinder head 200, thus completing the disassembly of the cylinder.
[0032] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the cylinder includes a cylinder body 100 and a cylinder head 200. The cylinder body 100 has an inner wall with a limiting groove, and the cylinder body 100 has multiple disassembly holes that extend radially along the cylinder body 100 and penetrate through the inner wall of the cylinder body 100. The disassembly holes communicate with the limiting groove.
[0033] The cylinder head 200 includes a lower cover body inserted into the cylinder body 100 and an upper cover body located outside the cylinder body 100. The lower cover body is provided with a retaining ring groove. The retaining ring groove communicates with a limiting groove when the lower cover body is inserted into the cylinder body 100. A limiting retaining ring is sleeved on the retaining ring groove, and the limiting retaining ring can be inserted into both the retaining ring groove and the limiting groove at the same time.
[0034] Specifically, the retaining circlip has a notch that provides expansion and contraction space. When the inner end of the retaining circlip is inserted into the retaining groove and the outer end is inserted into the retaining groove, the retaining circlip secures the cylinder head 200 onto the cylinder body 100. Further, to remove the cylinder head 200 from the cylinder body 100, the outer end of the retaining circlip needs to be pressed inward, causing it to disengage from the retaining groove. Therefore, the groove depth must be at least equal to the width of the retaining circlip. The removal hole allows workers to apply inward pressure to the retaining circlip, causing it to contract inward and facilitate the removal of the cylinder head 200 from the cylinder body 100. Therefore, the removal hole allows for quick cylinder removal, avoiding the need for dismantling the cylinder and significantly reducing the difficulty of replacing easily damaged parts. It also ensures the cylinder can continue to function normally after replacing easily damaged parts, saving on spare parts procurement costs.
[0035] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the compression rod 500 is a screw. The mounting hole 410 is a threaded hole, and the compression rod 500 is threadedly engaged with the mounting hole 410.
[0036] Specifically, the threaded engagement between the compression rod 500 and the mounting hole 410 allows the compression rod 500 to be adjusted and fixedly mounted on the disassembly ring 400. The displacement distance of the compression rod 500 can be adjusted by rotating it, preventing retraction. Furthermore, the outer end of the compression rod 500 has a straight groove and a cross groove to facilitate operation with a screwdriver, reducing reliance on specific tools and increasing its versatility.
[0037] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cylinder disassembly auxiliary tool also includes a fixing member 630, which has a fixing hole. The fixing member 630 is used to fix itself at a preset position and is fixedly connected to the cylinder body 100 of the cylinder through the fixing hole.
[0038] Specifically, the fixing component 630 is block-shaped, and the fixing hole is a threaded hole, so that the fixing block is threadedly fixed to the cylinder body 100 of the cylinder, thereby facilitating the application of tension to the cylinder head 200 so as to remove the cylinder head 200 from the cylinder body 100.
[0039] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cylinder disassembly auxiliary tool also includes a puller and a connector. The connector is fixedly provided with a connecting screw and a connecting hole, and the connecting screw and the connecting hole are coaxially arranged. The connecting screw is used for threaded connection with the puller, and the connecting hole is used for connection with the outer end of the cylinder's piston rod. Specifically, the connector is block-shaped and is used to connect the piston rod to the puller, further facilitating the disassembly of the cylinder.
[0040] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cylinder disassembly auxiliary tool also includes an adjustment frame 600, which comprises an adjustment base 620 and multiple adjustment rods 610. The adjustment base 620 is horizontally positioned, and the preset position is located on the adjustment base 620. The adjustment rods 610 are vertically positioned, with their lower ends fixed to the adjustment base 620 and their upper ends connected to the disassembly ring 400. Specifically, the adjustment frame 600 provides stability to the disassembly ring 400, thereby further facilitating operation by the operator.
[0041] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the adjusting rod 610 is a telescopic rod capable of adjustment and scheduling. Specifically, the adjusting rod 610 is telescopically designed to adjust the height of the disassembly ring 400, thereby adapting the disassembly ring 400 to the disassembly position of different cylinders, thus further increasing the applicability of the auxiliary tool.
[0042] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.
Claims
1. A cylinder dismounting assist tool for dismounting a cylinder having a dismounting hole on an outer surface of a cylinder body, characterized by, Comprising: a dismounting ring, which is used to be sleeved outside the cylinder; a plurality of mounting holes are arranged on the dismounting ring; the mounting holes penetrate along the radial direction of the dismounting ring, and a plurality of the mounting holes are arranged along the circumferential direction of the dismounting ring; a plurality of compression rods, each of which is slidingly arranged in one of the mounting holes along the radial direction of the dismounting ring; the inner end of the compression rod can be inserted into the dismounting hole of the cylinder.
2. The cylinder dismounting auxiliary tool according to claim 1, wherein: the compression rod is a screw; the mounting hole is a threaded hole; and the compression rod is threadedly matched with the mounting hole.
3. The cylinder removal assist tool of claim 1, wherein, Further comprising: a fixing member, which is provided with a fixing hole; the fixing member is used to be fixedly arranged at a preset position and is fixedly connected with the cylinder body of the cylinder through the fixing hole.
4. The cylinder removal assist tool of claim 1, wherein, Further comprising: a puller tool and a connecting member, which is fixedly provided with a connecting screw rod and a connecting hole, and the connecting screw rod and the connecting hole are coaxially arranged; the connecting screw rod is used to be threadedly connected with the puller tool, and the connecting hole is used to be connected with the outer end of the plug rod of the cylinder.
5. The cylinder removal assist tool of claim 3, wherein, Further comprising: an adjusting frame, which comprises an adjusting base and a plurality of adjusting rods; the adjusting base is horizontally arranged; and the preset position is located on the adjusting base; the adjusting rods are vertically arranged, the lower end of each of which is fixedly connected with the adjusting base, and the upper end of each of which is connected with the dismounting ring.
6. The cylinder dismounting auxiliary tool according to claim 5, wherein: the adjusting rod is a telescopic rod which can be adjusted in length.