Sealing ring for main pump of bicycle brake system
By designing multiple sealing surfaces and internal buffer structures in the sealing ring for the main pump of the bicycle braking system, the problems of easy twisting of the sealing ring and insufficient sealing performance are solved, and elastic sealing and extended service life are achieved.
Patent Information
- Application Number
- CN202422148620.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The sealing ring for the main pump of the existing bicycle braking system is usually a single O-type structure, which cannot form an elastic seal, has a general sealing performance, and is prone to twisting during use and breaking.
A sealing ring assembly is designed, including a sealing ring body, a first sealing surface is provided in the middle of the outer wall, a second sealing surface is provided on both sides, and a beveled surface and annular buffer groove are provided at both ends of the inner wall, and an elastic filling layer is filled inside to increase the sealing area and elastic sealing effect to prevent twisting.
Through multiple sealing surface design and internal buffer structure, the sealing effect and service life are improved, and the sealing ring is prevented from being damaged by vibration or impact.
Smart Images
Figure CN223242049U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of brake system components, in particular to a sealing ring for a main pump of a bicycle brake system. Background Art
[0002] The function of the brake air chamber (i.e., the brake air chamber) is to convert the pressure of compressed air into mechanical force to rotate the brake camshaft to achieve braking action. The brake air chamber is a clamp-clamped diaphragm type. The front and rear brake air chambers are different in size, but their structure is basically the same. The air chamber is sealed with a sealing ring.
[0003] However, the existing sealing rings used in the master pump of the bicycle brake system are generally a single O-type structure, which cannot form an elastic seal, has average sealing performance, and is prone to twisting during use, causing breakage.
[0004] Therefore, it is necessary to invent a bicycle brake system master pump sealing ring to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a sealing ring for a master pump of a bicycle brake system, so as to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a sealing ring for a main pump of a bicycle brake system, comprising a sealing ring assembly, wherein the sealing ring assembly comprises a sealing ring body, a first sealing surface is integrally formed and surrounded in the middle of the outer wall of the sealing ring body, and a second sealing surface is integrally formed and surrounded on both sides of the outer wall of the sealing ring body.
[0007] Preferably, the top ends of the first sealing surface and the second sealing surface are arranged in an arc shape, and the side of the second sealing surface away from the first sealing surface is arranged in an arc shape.
[0008] Preferably, both ends of the inner side wall of the sealing ring body are integrally formed with beveled surfaces, and an annular buffer groove is provided around the interior of the sealing ring body.
[0009] Preferably, the inner walls on both sides of the annular buffer groove are inclined, the inner side wall of the annular buffer groove is integrally formed with reinforcing ribs, and the interior of the annular buffer groove is filled with an elastic filling layer.
[0010] Preferably, a plurality of reinforcing ribs are provided, and the plurality of reinforcing ribs are distributed at equal intervals.
[0011] Preferably, connecting grooves are provided around the connection between the two sides of the first sealing surface and one of the second sealing surfaces, and the connecting grooves are arranged in an arc shape.
[0012] The technical effects and advantages of this utility model are:
[0013] The utility model forms multiple sealing surfaces of the sealing ring through the arrangement of the first sealing surface and the two second sealing surfaces, greatly increasing the sealing area. At the same time, the outer diameter of the second sealing surface is smaller than the outer diameter of the first sealing surface. During use, even if the second sealing surface is no longer in contact with the sealed surface due to vibration, the first sealing surface can still be sealed to form an elastic seal, thereby improving the sealing effect. Moreover, the inclined arrangement of the beveled surface and the two sides of the annular buffer groove can prevent the sealing ring from twisting during use as a whole. The interior of the sealing ring body is hollow and filled with an elastic filling layer, which can play a buffering role, improve the effect of the elastic seal, and at the same time buffer the impact on the outer side wall of the sealing ring body, prevent damage to the sealing ring, and increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the overall side view structure of the utility model.
[0016] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0017] In the figure: 1. Sealing ring assembly; 101. Sealing ring body; 102. First sealing surface; 103. Second sealing surface; 104. Connecting groove; 105. Beveled surface; 106. Annular buffer groove; 107. Elastic filling layer; 108. Reinforcing rib. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] The utility model provides Figure 1-3A sealing ring for a master cylinder of a bicycle brake system is shown, comprising a sealing ring assembly 1, comprising a sealing ring body 101. A first sealing surface 102 is integrally formed and arranged around the middle of an outer wall of the sealing ring body 101, and second sealing surfaces 103 are integrally formed and arranged around both sides of the outer wall of the sealing ring body 101. The top ends of the first sealing surface 102 and the second sealing surface 103 are arranged in an arc shape, and the side of the second sealing surface 103 away from the first sealing surface 102 is also arranged in an arc shape. The arrangement of the first sealing surface 102 and the two second sealing surfaces 103 forms multiple sealing surfaces in the sealing ring, greatly increasing the sealing area. At the same time, the outer diameter of the second sealing surface 103 is smaller than the outer diameter of the first sealing surface 102. During use, even if the second sealing surface 103 is no longer in contact with the sealed surface due to vibration, the first sealing surface 102 can still perform a seal, forming an elastic seal and improving the sealing effect.
[0020] Both ends of the inner wall of the sealing ring body 101 are integrally formed with beveled surfaces 105. An annular buffer groove 106 is provided around the interior of the sealing ring body 101. The interior of the annular buffer groove 106 is filled with an elastic filling layer 107. The inner walls on both sides of the annular buffer groove 106 are inclined. The beveled surface 105 and the inclined sides of the annular buffer groove 106 can prevent the sealing ring from twisting during use as a whole. The sealing ring body 101 is hollow inside and is filled with an elastic filling layer 107, which can play a buffering role, improve the effect of elastic sealing, and at the same time buffer the impact on the outer wall of the sealing ring body 101, prevent damage to the sealing ring, and increase its service life.
[0021] Furthermore, the inner side wall of the annular buffer groove 106 is integrally formed with reinforcing ribs 108, and there are multiple reinforcing ribs 108, which are evenly spaced. The multiple reinforcing ribs 108 can make the inner ring of the sealing ring body 101 hold tighter, thereby improving the sealing effect. Connecting grooves 104 are arranged around the connection between the two sides of the first sealing surface 102 and one of the second sealing surfaces 103, and the connecting grooves 104 are arranged in an arc shape.
[0022] Working principle of this utility model:
[0023] During use, due to the setting of the first sealing surface 102 and the two second sealing surfaces 103, the sealing ring forms multiple sealing surfaces, which greatly increases the sealing area. At the same time, the outer diameter of the second sealing surface 103 is smaller than the outer diameter of the first sealing surface 102. During use, even if the second sealing surface 103 is no longer in contact with the sealed surface due to vibration, the first sealing surface 102 can still be sealed to form an elastic seal and improve the sealing effect. Moreover, the inclined setting of the beveled surface 105 and the two sides of the annular buffer groove 106 can prevent the sealing ring from twisting during use as a whole. The sealing ring body 101 is hollow inside and is filled with an elastic filling layer 107, which can play a buffering role, improve the effect of the elastic seal, and at the same time buffer the impact on the outer wall of the sealing ring body 101, prevent damage to the sealing ring, and increase its service life.
[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A sealing ring for a main pump of a bicycle brake system, characterized by: The invention comprises a sealing ring assembly (1), wherein the sealing ring assembly (1) comprises a sealing ring body (101), a first sealing surface (102) is integrally formed and arranged around the middle of the outer wall of the sealing ring body (101), and second sealing surfaces (103) are integrally formed and arranged around both sides of the outer wall of the sealing ring body (101).
2. The sealing ring for a main pump of a bicycle brake system according to claim 1, characterized in that: The top ends of the first sealing surface (102) and the second sealing surface (103) are arranged in an arc shape, and the side of the second sealing surface (103) away from the first sealing surface (102) is arranged in an arc shape.
3. The sealing ring for a main pump of a bicycle brake system according to claim 2, characterized in that: Both ends of the inner side wall of the sealing ring body (101) are integrally formed with beveled surfaces (105), and an annular buffer groove (106) is provided around the interior of the sealing ring body (101).
4. The sealing ring for a main pump of a bicycle brake system according to claim 3, characterized in that: The inner walls on both sides of the annular buffer groove (106) are inclined, the inner side wall of the annular buffer groove (106) is integrally formed with reinforcing ribs (108) surrounding it, and the interior of the annular buffer groove (106) is filled with an elastic filling layer (107).
5. The sealing ring for a main pump of a bicycle brake system according to claim 4, characterized in that: A plurality of reinforcing ribs (108) are provided, and the plurality of reinforcing ribs (108) are distributed at equal intervals.
6. The sealing ring for a main pump of a bicycle brake system according to claim 5, characterized in that: Connecting grooves (104) are arranged around the connection between the two sides of the first sealing surface (102) and one of the second sealing surfaces (103), and the connecting grooves (104) are arranged in an arc shape.