Non-revolving body special-shaped inner cavity sealing structure
By combining the shell and the seal, and utilizing the interference fit and clamping design of the elastic element, the sealing problem of the non-rotating irregular inner cavity is solved, achieving a safe and reliable sealing effect and meeting the needs of projectile structure optimization.
Patent Information
- Application Number
- CN202520536385.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Traditional sealing structures cannot adapt to non-rotating irregular cavities, resulting in insufficient sealing and potential safety hazards. Furthermore, traditional methods cannot meet the sealing requirements of the optimized projectile structure.
It adopts a combined structure of shell, elastic element and seal, and utilizes the matching design of the inner groove of the shell and the seal to achieve the sealing of the non-rotating irregular inner cavity through the interference fit and clamping structure of the elastic element.
It achieves effective sealing of non-rotating irregular-shaped internal cavities, ensuring safety and versatility, simplifying the processing technology, and reducing costs.
Smart Images
Figure CN223856314U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of sealing structure, specifically relates to a non-rotating body special-shaped inner chamber sealing structure. BACKGROUND
[0002] At present, part of guided projectile structure is optimized, and the external antenna layout is located in the warhead cabin section. In order to ensure the installation of the external antenna, the warhead cabin section is designed with a platform structure, so that the warhead inner chamber is a non-rotating body special-shaped inner chamber. At the same time, in order to realize the weight reduction of the whole projectile, the front end of the warhead is not designed with a cover and similar parts, and the connecting screw is shared with the front cabin section.
[0003] The traditional projectile realizes sealing by the following technical approaches: designing cover, sealing cover and other parts, assembling the cover with the warhead shell through the thread structure, and realizing sealing. However, after improvement, the warhead shell is a non-rotating body, and the thread structure cannot be designed and processed. At the same time, the projectile structure is optimized, and the cover part is cancelled. The traditional technical approach cannot meet the requirements.
[0004] If the sealing is directly realized by the connecting screw shared with the front cabin section, the following design risks exist: first, due to the process limitation, the height of the filling material has an error after being pressed, directly contacts the connecting screw, and has a gap, which not only causes safety risks, but also causes the warhead port to be inconsistent with the matching size of the front cabin section. Second, in the process of temporary storage and transportation, the filling material is exposed, causes the entry of excess materials, damages the contact surface and other problems, and cannot meet the design principle of sealing.
[0005] Therefore, it is necessary to develop a non-rotating body special-shaped inner chamber sealing structure to solve the above problems. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing a non-rotating body special-shaped inner chamber sealing structure which is common to multiple platform products, simple in structure, convenient to realize, durable, high in universality and good in economy, guarantees sealing, and enhances safety.
[0007] The utility model adopts the technical scheme as follows:
[0008] A non-rotating body special-shaped inner chamber sealing structure, comprising a shell 1, an elastic piece 2 and a sealing piece 3, and being used in cooperation with a non-rotating body special-shaped body;
[0009] The shell 1 comprises an outer shell 1-1, the inner chamber shape of the outer shell 1-1 is matched with the outer shape surface shape of the non-rotating body special-shaped body, and an inner groove 1-2 is arranged at the inner chamber port of the outer shell 1-1;
[0010] The elastic member 2 is made of elastic material, comprising a plate body 2-1, the outer contour of which matches the inner contour of the inner cavity of the shell 1-1; the plate body 2-1 has a through hole 2-3 in the middle, and a protruding strip 2-2 is arranged on the side of the plate body 2-1; the protruding strip 2-2 cooperates with the inner groove 1-2;
[0011] The sealing member 3 is in a cylindrical structure, comprising a cylinder body 3-1 and an end face 3-2; the cylinder body 3-1 matches the inner profile shape of the non-rotating body; the end face 3-2 is arranged at one end of the cylinder body 3-1, and a protruding ring is arranged on the inner side of the end face 3-2 along the side of the cylinder body 3-1, and the protruding ring matches the through hole 2-3;
[0012] The shell 1 and the sealing member 3 are matched and connected to the outer side and the inner side of the non-rotating body respectively, and the elastic member 2 connects and seals the shell 1 and the sealing member 3.
[0013] Preferably, the protruding strip 2-2 has chamfer structures 2-4 on both sides; the chamfer structures 2-4 are clamped in cooperation with the inner groove 1-2 and the end face 3-2.
[0014] Preferably, the elastic member 2 is made of rubber material.
[0015] Preferably, the protruding ring of the cylinder body 3-1 is in interference fit with the through hole 2-3.
[0016] Preferably, the shell 1 and the sealing member 3 are made of non-elastic material.
[0017] Further, the shell 1 and the sealing member 3 are made of metal material or high polymer material.
[0018] Preferably, the port of the shell 1 is matched and connected to the power part cabin section.
[0019] The utility model discloses the following beneficial effects: the utility model discloses the sealing of non-rotating body special-shaped inner cavity is realized by elastic member, and the structure is simple. For the non-rotating body that is difficult to design and process the thread structure, only needs to optimize the sealing member structure of the isolated filling object to realize the sealing, has certain operability and universality. The selection of elastic member material is common material, and the optimization process of relevant size is simple, which guarantees the good economy of the application and has good application prospect in actual products. DRAWINGS
[0020] Figure 1 It is the three-dimensional schematic diagram of the structure of the utility model;
[0021] Figure 2 It is the three-dimensional sectional schematic diagram of the structure of the utility model;
[0022] Figure 3 It is the shell sectional structure schematic diagram of the utility model;
[0023] Figure 4 It is the cross section structure schematic view of the elastic member of the utility model;
[0024] Figure 5 It is the cross section structure schematic view of the sealing member of the utility model. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantage of the utility model more clear and definite, combine following embodiment, further detailed description is made to the utility model.It should be explained that the utility model is not limited to following embodiment.
[0026] Embodiment 1
[0027] A non-rotating body special-shaped inner cavity sealing structure, including shell 1, elastic member 2 and sealing member 3, cooperate with non-rotating body special-shaped body use,
[0028] The shell 1 includes the shell 1-1, and the shell 1-1 inner cavity shape matches the non-rotating body special-shaped body outer surface shape;The inner cavity port of the shell 1-1 is provided with an inner groove 1-2;
[0029] The elastic member 2 is of elastic rubber material, including plate body 2-1, and the outer contour of the plate body 2-1 matches the inner contour of the inner cavity port of the inner groove 1-2 of the shell 1-1;The plate body 2-1 is provided with a through hole 2-3 in the middle, and the plate body 2-1 is provided with a convex strip 2-2 on the side;The convex strip 2-2 cooperates with the inner groove 1-2;The convex strip 2-2 is provided with chamfer structure 2-4 on both sides;The chamfer structure 2-4 cooperates with the inner groove 1-2 and the end face 3-2 and is clamped tightly;
[0030] The sealing member 3 is of cylindrical structure, including cylinder body 3-1 and end face 3-2;The cylinder body 3-1 matches the inner surface shape of the non-rotating body special-shaped body;The end face 3-2 is arranged at one end of the cylinder body 3-1, and a convex ring is arranged on the cylinder body 3-1 along the side of the end face 3-2, and the convex ring matches the through hole 2-3;The convex ring of the cylinder body 3-1 is interference fit with the through hole 2-3;
[0031] The shell 1 and the sealing member 3 match and connect the outer side and the inner side of the non-rotating body special-shaped body respectively, and the elastic member 2 connects and seals the shell 1 and the sealing member 3.
[0032] The shell 1 and the sealing member 3 are of aluminum metal material.
[0033] After assembly, the shell 1 port cooperates and connects with the power part cabin section.
[0034] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make a number of improvements and deformation, these improvements and deformation also should be regarded as the protection scope of the utility model.
Claims
1. A non-rotating body seal structure of a special-shaped inner cavity, characterized in that, The utility model relates to a sealing device for non-rotating body, which comprises a shell (1), an elastic member (2) and a sealing member (3). The shell (1) comprises an outer shell (1-1), and the inner cavity of the outer shell (1-1) is shaped to match the outer shape of the non-rotating body; an inner groove (1-2) is arranged at the inner cavity port of the outer shell (1-1). The elastic member (2) is made of elastic material and comprises a plate body (2-1), the outer contour of the plate body (2-1) matches the inner contour of the inner cavity port of the outer shell (1-1) where the inner groove (1-2) is located; the plate body (2-1) has a through hole (2-3) in the middle and a protruding strip (2-2) arranged on the side of the plate body (2-1); the protruding strip (2-2) cooperates with the inner groove (1-2). The sealing member (3) is in a cylindrical structure and comprises a cylinder body (3-1) and an end face (3-2); the cylinder body (3-1) matches the inner shape of the non-rotating body; the end face (3-2) is arranged at one end of the cylinder body (3-1), and a protruding ring is arranged on the inner side of the end face (3-2) along the side of the cylinder body (3-1), which matches the through hole (2-3). The shell (1) and the sealing member (3) match the outer side and the inner side of the non-rotating body respectively, and the elastic member (2) connects and seals the shell (1) and the sealing member (3).
2. The non-rotating body shaped inner cavity sealing structure according to claim 1, characterized in that, The protruding strip (2-2) has chamfer structures (2-4) arranged on both sides; the chamfer structures (2-4) cooperate with the inner groove (1-2) and the end face (3-2) to be clamped tightly.
3. The non-rotating body shaped inner cavity sealing structure according to claim 1, wherein, The elastic member (2) is made of rubber material.
4. The non-rotating body shaped inner cavity sealing structure according to claim 1, wherein The protruding ring of the cylinder body (3-1) is in interference fit with the through hole (2-3).
5. The non-rotating body shaped inner cavity sealing structure according to claim 1, wherein The shell (1) and the sealing member (3) are made of non-elastic material.
6. The non-rotating body shaped inner cavity sealing structure according to claim 5, wherein The shell (1) and the sealing member (3) are made of metal material or high polymer material.
7. The non-rotating body shaped inner cavity sealing structure according to claim 1, wherein The port of the shell (1) cooperates with the power cabin section.