Centering alignment structure for cylindrical tank body and machine core
By centering the cylindrical tank and the core assembly, and using the insertion and positioning of the convex and concave truncated cone slots and the O-ring clamping, the assembly interference problem of the core assembly and tank assembly during vibration or collision is solved, reducing costs and improving the shock resistance and quality of the equipment.
Patent Information
- Application Number
- CN202520054860.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing cylindrical core and tank assembly components are prone to assembly interference, perpendicularity and parallelism defects when subjected to vibration or collision, resulting in difficulties in installation and disassembly, increased material and labor costs, and impact on equipment accuracy and quality.
The design employs a cylindrical tank and a centered alignment structure for the movement. It uses a convex frustum structure and a concave frustum groove structure for positioning, combined with flexible O-ring clamping, to achieve self-centering correction and enhanced shock resistance of the movement. It is fixed on only one side, reducing the material and labor costs of fasteners.
It reduces material and labor costs, simplifies assembly and disassembly processes, improves the equipment's seismic resistance and performance, and lowers maintenance costs.
Smart Images

Figure CN223591362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a structure in which a cylindrical tank and a movement are aligned in the center. Background Technology
[0002] Cylindrical movement assemblies come in a wide variety of types and structures and are widely used. Most of them require simple and convenient assembly and disassembly for easy repair and maintenance. These cylindrical movement assemblies often need to be installed in matching cylinders or canisters. Considering factors such as ease of installation and disassembly, structural interference, sealing, and operability, one end of the movement is usually fixed while the other end is suspended.
[0003] The design of fixing one end of the mechanism while the other end is suspended poses many installation and quality risks in precision or complex operating environments and unexpected scenarios. This is especially true in cases where the mechanism structure is not strong enough, the mechanism length is long, or the gap between the mechanism and the tank is large. Once the equipment vibrates or collides, the mechanism may collide with the inner wall of the tank. Poor perpendicularity and parallelism between the mechanism and the end cap and the tank can also lead to assembly interference and disassembly jamming.
[0004] To avoid the above situations, the length of the mechanism is often reduced, the gap between the mechanism and the tank is increased, and the strength of the mechanism and the tank is strengthened. These methods often reduce the precision and quality of the equipment, increase the material cost of the equipment, and increase the weight of the equipment. Utility Model Content
[0005] The main technical problem solved by this utility model is to provide a cylindrical tank body and core body center alignment structure, which reduces material costs, reduces the space occupied by the tank body equipment, and can reserve extra space for other adjacent equipment. The self-centering and correction structure can reduce assembly difficulty. Only one side is a fixed end, which greatly reduces the labor assembly cost and fastener material cost. It is convenient to disassemble and reduces the disassembly cost during later maintenance. The fixed end connection with conical alignment and O-ring flexible compression fixation method enhances shock resistance and indirectly improves the quality of equipment use.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a cylindrical can body and a mechanism aligned in the center, including a can body, an end cap, and a mechanism assembly. The can body is cylindrical and has a through cylindrical mounting hole in the axial direction. The end cap includes a first end cap and a second end cap, which are respectively fixed at the two openings of the can body. The mechanism assembly is correspondingly disposed in the can body, and the tail end of the mechanism assembly is fixed on the first end cap. The free end of the mechanism assembly is correspondingly positioned with the inner side of the second end cap through a positioning structure.
[0007] In a preferred embodiment of this utility model, the outer wall of the mechanism assembly is fitted to the inner wall of the can body in the cylindrical mounting hole.
[0008] In a preferred embodiment of the present invention, the positioning structure includes a convex frustum structure and a concave frustum groove structure.
[0009] In a preferred embodiment of the present invention, the convex frustum structure protrudes from the center of the free end of the movement assembly, and the concave frustum groove structure is recessed into the center of the inner side of the second end cover. The convex frustum structure and the concave frustum groove structure are correspondingly inserted and positioned.
[0010] In a preferred embodiment of the present invention, the movement assembly has an annularly distributed positioning groove recessed on the bottom connecting side of the convex frustum structure.
[0011] In a preferred embodiment of the present invention, an O-ring is provided in the positioning groove to elastically fit the inner side of the second end cap.
[0012] The beneficial effects of this utility model are as follows: The cylindrical tank and the core of this utility model are aligned in a centered manner, which reduces material costs, reduces the space occupied by the tank equipment, and can reserve extra space for other adjacent equipment. The self-centering and correcting structure can reduce the difficulty of assembly. Only one side is a fixed end, which greatly reduces the labor assembly cost and the material cost of fasteners. It is easy to disassemble and reduces the disassembly cost during later maintenance. The fixed end connection with conical alignment and O-ring flexible squeezing fixation method enhances the shock resistance and indirectly improves the quality of equipment use. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0014] Figure 1 This is a cross-sectional view of a preferred embodiment of the cylindrical tank and the mechanism aligned in the center according to this utility model;
[0015] Figure 2 yes Figure 1 A magnified view of part A. Detailed Implementation
[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] Please see Figures 1-2 As shown, the embodiments of this utility model include:
[0018] A cylindrical tank and a movement assembly are centrally aligned, comprising a tank 1, an end cap, and a movement assembly 2.
[0019] The tank body 1 is cylindrical in shape and has a through cylindrical mounting hole 3 in the axial direction for installation.
[0020] The end caps include a first end cap 4 and a second end cap 5, which are respectively fixed to the two openings of the tank body 1 to seal both sides of the tank body 1. Specifically, they can be fixed with screws for easy disassembly.
[0021] The mechanism assembly 2 is correspondingly disposed inside the tank body 1. The outer wall of the mechanism assembly 2 corresponds to and fits into the inner wall of the tank body 1 at the cylindrical mounting hole 3, ensuring the radial stability of the mechanism assembly 2 within the tank body 1. The tank body 1 is adapted to accommodate the mechanism assembly 2, which effectively reduces the overall size and weight of the tank body 1, thereby reducing material costs, while still allowing for the arrangement of all components. Furthermore, material costs are reduced by decreasing the frame strength design of the mechanism assembly 2 while still meeting its length requirements.
[0022] The tail end of the movement assembly 2 is fixed on the first end cover 4, which can form an assembly of the movement assembly 2 and the end cover respectively.
[0023] The free end of the movement assembly 2 and the inner side of the second end cover 5 are positioned correspondingly by a positioning structure to form a self-centering correction.
[0024] The positioning structure includes a convex frustum structure 6 and a concave frustum groove structure 7.
[0025] The convex frustum structure 6 protrudes from the center of the free end of the movement assembly 2, and the concave frustum groove structure 7 is recessed into the center of the inner side of the second end cover 5. The convex frustum structure 6 and the concave frustum groove structure 7 are correspondingly inserted and positioned to achieve the centering and alignment of the movement assembly 2 and the second end cover 5.
[0026] The core assembly 2 has an annularly distributed positioning groove 8 recessed on the bottom connecting side of the convex frustum structure 6. An O-ring 9 is provided in the positioning groove 8 and elastically fits the inner surface of the second end cap 5. The length of the core assembly 2 must match the depth of the cylindrical mounting hole 3 in the tank body 1, and a suitable allowance must be left. The specification of the O-ring 9 must be selected in combination with the size of the core assembly 2 and the allowance reserved between the free end of the core assembly 2 and the cylindrical mounting hole 3 of the tank body 1. The core assembly 2, the O-ring 9 and the second end cap 5 are flexibly squeezed together.
[0027] In summary, the cylindrical tank and the core of this utility model are aligned in a centered manner, which reduces material costs, minimizes the space occupied by the tank equipment, and allows for more space for other adjacent equipment. The self-centering and correcting structure reduces assembly difficulty. With only one fixed end, it greatly reduces labor assembly costs and fastener material costs, facilitates disassembly, and reduces disassembly costs during later maintenance. The fixed end connection with conical alignment and O-ring flexible clamping enhances shock resistance and indirectly improves the quality of equipment use.
[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A cylindrical can body and a movement body aligned centrally, characterized in that, The device includes a tank body, end caps, and a mechanism assembly. The tank body is cylindrical and has a through cylindrical mounting hole. The end caps include a first end cap and a second end cap, which are fixed to the two openings of the tank body. The mechanism assembly is disposed in the tank body, and the tail end of the mechanism assembly is fixed to the first end cap. The free end of the mechanism assembly is positioned correspondingly to the inner side of the second end cap through a positioning structure.
2. The cylindrical tank and the movement are aligned in a centered manner according to claim 1, characterized in that, The outer wall of the mechanism assembly is fitted to the inner wall of the can body through the cylindrical mounting hole.
3. The cylindrical tank and the movement are aligned in a centered manner according to claim 1, characterized in that, The positioning structure includes a convex frustum structure and a concave frustum groove structure.
4. The cylindrical tank and the movement are aligned in a centered manner according to claim 3, characterized in that, The convex frustum structure protrudes from the center of the free end of the movement assembly, and the concave frustum groove structure is recessed into the center of the inner side of the second end cover. The convex frustum structure and the concave frustum groove structure are correspondingly inserted and positioned.
5. The cylindrical tank and the movement are aligned in a centered manner according to claim 4, characterized in that, The movement assembly has an annularly distributed positioning groove recessed on the bottom connecting side of the convex frustum structure.
6. The cylindrical tank and the movement are aligned in a centered manner according to claim 5, characterized in that, An O-ring is provided in the positioning groove to elastically fit the inner side of the second end cap.