Novel spherical sealing structure joint
By using a ball-shaped head elastic deformation sealing structure and protective sleeve design in automotive connectors, the problem of easy leakage in traditional sealing structures is solved, achieving higher sealing performance and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional conical seal structures have weak sealing performance in automotive joints and are easily affected by fluctuations in medium pressure and temperature changes, leading to leakage problems.
Using a spherical head as an elastic material component, the sealing surface is filled by the elastic deformation of the material. Combined with the design of a protective sleeve and an arc plate, deformation sealing is achieved, which can adapt to different sealing shapes and angles and reduce the risk of leakage.
It improves sealing performance, reduces the risk of leakage, and the protective sleeve design reduces the impact of dust on the sealing material and facilitates the replacement of the protective sleeve.
Smart Images

Figure CN224017945U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, specifically to a new -type ball type sealing structure joint. BACKGROUND
[0002] The joint is an important connecting element in automobile parts and an essential component in a pipeline system, which changes the direction of the pipeline and thus changes the flow direction of the medium in the pipeline, ensures that the brake fluid or gas can be smoothly transmitted, and thus realizes effective braking. The sealing property of the braking system is crucial.
[0003] Through the search patent application No. CN201410381462.2, the application discloses a kind of new pure metal sealing joint structure, the application is relatively screwed by fastening nut to joint A and joint B, make the ball surface of being provided with joint B compress the sealing base sleeve in joint A, by the axial fastening force of fastening nut, make the ball surface of being provided with joint B extrude sealing base sleeve, so that sealing base sleeve occurs elastic deformation, by the close, reliable connection of ball surface and sealing base sleeve, realize sealing, its structure is not prone to wear, aging, will not appear deformation and affect sealing effect, when using, traditional sealing joint usually adopts conical surface sealing structure, this structure belongs to linear sealing, sealing performance is relatively weak, is easily affected by medium pressure fluctuation and temperature change, lead to leakage problem.
[0004] Again search patent application No. CN202420273220.0, the utility model discloses a kind of sealing type ball joint assembly, the structure of the utility model is reasonably arranged, it is provided with strip ring groove in the upper portion of ball seat, it is fixed with horn-shaped sealing body on the outer wall of ball pin simultaneously, the horn-shaped sealing body of its ball pin is inserted in strip ring groove and can move in strip ring groove, cooperate cover, not only can guarantee the sealing between ball head and ball seat, simultaneously it is provided with lubricating grease, to improve lubrication stability and effectiveness, while also can improve use stability, strong applicability and good practicality, when using, traditional sealing joint usually adopts conical surface sealing structure, this structure belongs to linear sealing, sealing performance is relatively weak, is easily affected by medium pressure fluctuation and temperature change, lead to leakage problem. UTILITY MODEL CONTENTS
[0005] To address the shortcomings of existing technologies, this invention provides a novel spherical sealing structure connector. A spherical head is installed on one side of the connector body, protruding from the surface. During connection, the spherical surface of the protruding head contacts the sealing surface of the connector to form a deformation seal. The spherical head is made of an elastic material, primarily filling the sealing surface through elastic deformation. The sealing surface increases during the compression process, resulting in a good sealing effect. This method can adapt to different sealing shapes and angles, improving product sealing performance and reducing leakage risks. A protective sleeve covers the spherical head, reducing dust impact. The upper and lower arc plates can be removed for easy replacement of the protective sleeve, making it convenient to use. This invention solves the problem of traditional sealing connectors typically using a conical sealing structure, which is a line seal with relatively weak sealing performance and is easily affected by media pressure fluctuations and temperature changes, leading to leakage problems.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel spherical sealing structure joint, comprising a joint body, a sealing mechanism provided on one side of the joint body, and an mounting plate provided between the sealing mechanism and the joint body.
[0007] The sealing mechanism includes a spherical head, on the outside of which a polyurethane elastomer is disposed, and on the outside of which an ethylene propylene rubber is disposed. An upper arc plate and a lower arc plate are disposed on one side of the connector body, and the upper arc plate and the lower arc plate are in contact with each other. A fixing plate is fixedly disposed on the side of the upper arc plate and the lower arc plate away from the mounting plate. A protective sleeve is disposed on one side of the connector body.
[0008] Preferably, the protective sleeve is a balloon, and the fixing plate is fixedly connected to the mounting plate by screws, which will not affect the deformation of the spherical head.
[0009] Preferably, the upper arc-shaped plate has a hole inside, and a connecting rod is installed inside the hole.
[0010] Preferably, a limiting rod is fixedly provided at one end of the connecting rod near the lower arc plate, and a merging groove is provided at one end of the hole.
[0011] Preferably, one end of the connecting rod extends into the interior of the merging groove, and the merging groove is connected to the connection point of the hole.
[0012] Preferably, a positioning plate is fixedly provided at one end of the lower arc-shaped plate near the merging groove, and the positioning plate is located inside the merging groove.
[0013] Preferably, the limiting rod passes through the positioning plate and is in contact with the positioning plate, and the spherical head is made of an elastic material component.
[0014] Preferably, the surface of the fixed plate to which the upper arc-shaped plate is fixedly connected is provided with a groove, and the end of the connecting rod away from the combining groove is fixedly provided with a sliding plate.
[0015] Preferably, the sliding plate is located inside the groove and is matched with the groove, and the cross-sectional shape of the upper arc-shaped plate and the lower arc-shaped plate is semicircular. Advantages
[0016] The utility model provides a new -type ball type sealing structure joint.
[0017] 1. The new -type ball type sealing structure joint, install one side at the joint body through the spherical head, and the spherical head highlights, and the contact between the spherical surface of the protruding spherical head and the sealing surface of the connecting piece forms the deformation seal when connecting, and the spherical head is made of elastic material component, mainly through the elastic deformation of material to fill the sealing surface, the sealing surface increases in the extrusion process, thereby good sealing effect is produced, this mode can adapt to different sealing shape and angle, improve product sealing performance, reduce the risk of leakage, and the protection sleeve can cover the spherical head, reduce the influence of dust on the spherical head, and when the upper arc-shaped plate and the lower arc-shaped plate are removed, the protection sleeve is convenient to replace, convenient to use.
[0018] 2. The new -type ball type sealing structure joint, the upper arc-shaped plate and the lower arc-shaped plate can be fixed through the fixed plate, so that the upper arc-shaped plate and the lower arc-shaped plate are combined together, can fix the protection sleeve, and when the sliding plate is in the groove, the connecting rod and the limiting rod will move, can make the limiting rod penetrate the positioning plate, and the lower arc-shaped plate fixedly connected with the positioning plate will not move, can prevent the other end of the upper arc-shaped plate and the lower arc-shaped plate from separating, and the protection sleeve is convenient to fix. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the whole structure schematic diagram of the utility model;
[0020] Figure 2 It is the sealing mechanism schematic diagram of the utility model;
[0021] Figure 3 It is the upper arc-shaped plate and the lower arc-shaped plate sectional view of the utility model;
[0022] Figure 4 It is the upper arc-shaped plate and the lower arc-shaped plate perspective view of the utility model.
[0023] In the figure: 1, joint body; 2, sealing mechanism; 201, spherical head; 202, polyurethane elastomer; 203, ethylene-propylene rubber; 204, upper arc plate; 205, lower arc plate; 206, fixed plate; 207, protective sleeve; 208, hole; 209, limiting rod; 210, merging groove; 211, positioning plate; 212, groove; 213, sliding plate; 214, connecting rod; 3, mounting plate. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] Please refer to Figures 1-2 The present application provides a technical solution: a new type of ball type sealing structure joint, comprising a joint body 1, a sealing mechanism 2 is arranged on one side of the joint body 1, and a mounting plate 3 is arranged between the sealing mechanism 2 and the joint body 1.
[0026] The sealing mechanism 2 comprises a spherical head 201, the outer side of the spherical head 201 is provided with a polyurethane elastomer 202, the outer side of the polyurethane elastomer 202 is provided with an ethylene-propylene rubber 203, one side of the joint body 1 is provided with an upper arc plate 204 and a lower arc plate 205, the upper arc plate 204 and the lower arc plate 205 are in contact, and the upper arc plate 204 and the lower arc plate 205 are both fixedly provided with a fixed plate 206 on the side away from the mounting plate 3, and the joint body 1 is provided with a protective sleeve 207 on one side.
[0027] The protective sleeve 207 is arranged as a balloon, the fixed plate 206 is fixedly connected with the mounting plate 3 through screws, the limiting rod 209 penetrates through the positioning plate 211 and is in contact with the positioning plate 211, the spherical head 201 is made of an elastic material member, and the types of the elastic material are various, such as rubber, silicone rubber, fluororubber and the like.
[0028] Please refer to Figures 2-4The inside of the upper arc-shaped plate 204 is provided with a hole 208, the inside of the hole 208 is provided with a connecting rod 214, one end of the connecting rod 214 close to the lower arc-shaped plate 205 is fixedly provided with a limiting rod 209, one end of the hole 208 is provided with a merging groove 210, one end of the connecting rod 214 extends to the inside of the merging groove 210, the merging groove 210 is communicated with the connecting position of the hole 208, one end of the lower arc-shaped plate 205 close to the merging groove 210 is fixedly provided with a positioning plate 211, the positioning plate 211 is located in the inside of the merging groove 210, the surface of the fixed plate 206 fixedly connected with the upper arc-shaped plate 204 is provided with a groove 212, one end of the connecting rod 214 away from the merging groove 210 is fixedly provided with a sliding plate 213, the sliding plate 213 is located in the inside of the groove 212 and is matched with the groove 212, the cross section shape of the upper arc-shaped plate 204 and the lower arc-shaped plate 205 is semicircular, the upper arc-shaped plate 204 and the lower arc-shaped plate 205 can be fixed by the fixed plate 206, so that the upper arc-shaped plate 204 and the lower arc-shaped plate 205 are combined together, the protective sleeve 207 can be fixed, and when the sliding plate 213 enters into the groove 212, the connecting rod 214 and the limiting rod 209 will move, the limiting rod 209 can penetrate through the positioning plate 211, the lower arc-shaped plate 205 fixedly connected with the positioning plate 211 will not move, the upper arc-shaped plate 204 and the other end of the lower arc-shaped plate 205 can be prevented from being separated, the protective sleeve 207 can be conveniently fixed.
[0029] In work, the joint body 1 can be installed with relevant components by threaded way, the spherical head 201 is installed on one side of the joint body 1, and the spherical head 201 is highlighted, the contact between the spherical surface of the protruding spherical head 201 and the connecting piece sealing surface forms a deformation seal when connected, which mainly fills the sealing surface by the elastic deformation of the material, and the sealing surface is increased during extrusion, thereby producing a good sealing effect, which can adapt to different sealing shapes and angles, improve the sealing performance of the product, reduce the risk of leakage, and cover the spherical head 201 through the protective sleeve 207, because the protective sleeve 207 is provided as a balloon, which can deform together with the protective sleeve 207, and can reduce the influence of dust on the ethylene-propylene rubber 203, prevent the influence of dust on the ethylene-propylene rubber 203, and maintain stable performance for a long time through the anti-aging effect of the ethylene-propylene rubber 203, and through the good elasticity and high elongation of the polyurethane elastomer 202, the original state is restored after deformation, when the protective sleeve 207 needs to be removed, the screw of the fixed plate 206 is removed, which can be separated from the mounting plate 3, and the sliding plate 213 is moved, which can be moved with the connecting rod 214 fixedly connected with the sliding plate 213, which can gradually separate the sliding plate 213 from the groove 212, and make the connecting rod 214 move in the hole 208, and the limiting rod 209 fixedly connected with the connecting rod 214 is moved at the same time, which can move in the merging groove 210, so that the limiting rod 209 gradually separates from the positioning plate 211, after separation, because the upper arc plate 204 is in contact with the lower arc plate 205, the upper arc plate 204 and the lower arc plate 205 can be removed, which is convenient for replacing the protective sleeve 207, and is convenient to use.
[0030] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.
Claims
1. A novel spherical sealing structure joint, comprising a joint body (1), characterized in that: A sealing mechanism (2) is provided on one side of the connector body (1), and an installation plate (3) is provided between the sealing mechanism (2) and the connector body (1). The sealing mechanism (2) includes a spherical head (201), a polyurethane elastomer (202) is provided on the outside of the spherical head (201), an ethylene propylene rubber (203) is provided on the outside of the polyurethane elastomer (202), an upper arc plate (204) and a lower arc plate (205) are provided on one side of the connector body (1), the upper arc plate (204) and the lower arc plate (205) are in contact with each other, a fixing plate (206) is fixedly provided on the side of the upper arc plate (204) and the lower arc plate (205) away from the mounting plate (3), and a protective sleeve (207) is provided on one side of the connector body (1).
2. The novel spherical sealing structure joint according to claim 1, characterized in that: The protective sleeve (207) is set as a balloon, and the fixing plate (206) is fixedly connected to the mounting plate (3) by screws.
3. The novel spherical sealing structure joint according to claim 1, characterized in that: The upper arc plate (204) has a hole (208) inside, and a connecting rod (214) is provided inside the hole (208).
4. A novel spherical sealing structure joint according to claim 3, characterized in that: A limiting rod (209) is fixedly provided at one end of the connecting rod (214) near the lower arc plate (205), and a merging groove (210) is provided at one end of the hole (208).
5. A novel spherical sealing structure joint according to claim 4, characterized in that: One end of the connecting rod (214) extends into the interior of the merging groove (210), which is connected to the connection point of the hole (208).
6. A novel spherical sealing structure joint according to claim 4, characterized in that: A positioning plate (211) is fixedly provided at one end of the lower arc plate (205) near the merging groove (210), and the positioning plate (211) is located inside the merging groove (210).
7. A novel spherical sealing structure joint according to claim 6, characterized in that: The limiting rod (209) passes through the positioning plate (211) and is in contact with the positioning plate (211), and the spherical head (201) is made of an elastic material component.
8. A novel spherical sealing structure joint according to claim 4, characterized in that: The surface of the fixing plate (206) to which the upper arc plate (204) is fixedly connected is provided with a groove (212), and a sliding plate (213) is fixedly provided at the end of the connecting rod (214) away from the merging groove (210).
9. A novel spherical sealing structure joint according to claim 8, characterized in that: The sliding plate (213) is located inside the groove (212) and is adapted to the groove (212). The cross-sectional shape of the upper arc plate (204) and the lower arc plate (205) is semi-circular.
Citation Information
Patent Citations
A novel pure metal sealing joint structure
CN104141840B
Sealing type ball joint assembly
CN222102548U