High-precision five-way bowl group of mountain bike

Abstract

The utility model provides a high-precision five-way bowl set of a mountain bike, and relates to the technical field of five-way bowl sets. Two built-in rings are symmetrically arranged on the outer side of the five-way pipe; a dish is arranged on the outer side of each of the two built-in rings; the positions of the two dishes are aligned; the outer sides of the two built-in rings are each provided with a set of cutting grooves in an annular array shape. A limiting ring is fixedly connected to the outer side of each of the two bowls and plates; the positions of the two limiting rings are aligned; a ball nest is formed in each of the two bowls; and a driving ball is arranged in the two ball nests. The seepage block is continuously extruded along with rotation of the driving ball, adsorbed lubricating grease slowly seeps and is smeared on the outer wall of the driving ball after the seepage block is extruded, the driving ball is lubricated, and the problem that normal use of the mountain bike is affected by abrasion of the ball is solved; usually, a user needs to regularly smear lubricating grease on the balls to maintain the balls, and operation is tedious.

Description

Technical Field

[0001] The utility model relates to the technical field of five-way bowl groups, in particular to a high-precision five-way bowl group for mountain bikes. Background Art

[0002] In the process of mountain bike production, in order to facilitate the connection between the mountain bike frame and the front fork, and also to ensure the steering performance of the mountain bike, a high-precision five-way bowl set is usually installed in the mountain bike frame. The existing high-precision five-way bowl set is usually composed of a five-way tube, a ball nest, balls and a bowl.

[0003] For example: The utility model with application number CN202322233769.5 discloses a five-way bowl set for a power-assisted bicycle, specifically, comprising a five-way tube, a bowl A and a bowl B; bowl A and bowl B are respectively arranged at the two ends of the five-way tube; wherein the opposite sides of the bowl A and bowl B are respectively positioned and cooperated with the two ends of the five-way tube through a plurality of positioning structures distributed in a ring array; the positioning structure comprises a positioning block A; positioning block A; wherein the positioning block A is inserted into a slot A opened at the end of the five-way tube; a plurality of balls are respectively arranged in the ball nests of the bowl A and the bowl B. The utility model has the advantage of pre-docking and positioning the five-way tube, bowl A and bowl B before welding, and maintaining stability during welding.

[0004] However, with regard to the current traditional high-precision five-way bowl set, friction will be generated between the balls inside the high-precision five-way bowl set and the bowl plate during use. With long-term use, the balls are easily worn out due to the friction between the balls and the bowl plate. In order to prevent the wear of the balls from affecting the normal use of the mountain bike, users usually need to regularly apply grease to the balls for maintenance, which is cumbersome and inconvenient to use. Utility Model Content

[0005] In view of this, the utility model provides a high-precision five-way bowl set for mountain bikes, which has a seepage block that can automatically lubricate the ball bearings to reduce the maintenance cycle. The oil filling hole can facilitate the staff to inject grease into the oil storage cavity for storage. The setting of the stop ring can limit the driving ball bearings. During the oil filling process, the oil filling pipe is inserted into the oil filling hole and the sealing cover is pushed to move. During the movement of the sealing cover, the guide slide column is driven to slide in the installation sleeve and squeeze the reset spring. When the sealing cover is completely pushed into the oil storage cavity, the oil filling pipe is inserted into the oil filling hole and the sealing cover is pushed to move. After the grease is in the cavity, the grease can be injected into the oil storage cavity. After the oil filling is completed, as the oil filling tube is pulled out of the oil filling hole, the sealing cover will be reset with the rebound of the reset spring, so that the sealing cover can seal the oil filling hole to prevent the grease in the oil storage cavity from seeping out. The grease seeping out of the oil outlet hole can be adsorbed and stored by the seepage block, and the seepage block will be continuously squeezed during the rotation of the driving ball. After the seepage block is squeezed, the adsorbed grease will slowly seep out and smear on the outer wall of the driving ball to lubricate the driving ball.

[0006] The utility model provides a high-precision five-way bowl set for a mountain bike, specifically comprising: a five-way tube; two built-in rings are symmetrically arranged on the outer side of the five-way tube; a bowl plate is arranged on the outer sides of the two built-in rings; the two bowl plates are aligned; the outer sides of the two built-in rings are each provided with a group of cut grooves in a ring array; the outer sides of the two bowl plates are each fixedly connected with a limit ring; the positions of the two limit rings are aligned; a ball nest is opened in each of the two bowl plates; a driving ball is arranged in the two ball nests; a stop ring is arranged in the two ball nests; and the two stop rings are respectively aligned with the positions of the two driving balls.

[0007] Optionally, an internal thread section is provided in each of the two built-in rings; a hollow threaded column is fixedly connected to the inner side of each of the two bowls; and the two hollow threaded columns are respectively engaged with the internal thread sections inside the two built-in rings.

[0008] Optionally, an oil storage cavity is provided in each of the two bowls; the two oil storage cavities are aligned with the positions of the two driving balls respectively; and an oil filling hole is provided on the outer side of each of the two oil storage cavities.

[0009] Optionally, a mounting sleeve is fixedly connected to each of the two oil storage chambers; the two mounting sleeves are respectively aligned with the positions of the two oil filling holes; a guide slide column is slidably connected to each of the two mounting sleeves; a return spring is fixedly connected to the inner sides of the two guide slide columns; the ends of the two return springs are respectively fixedly connected to the two mounting sleeves; a sealing cover is fixedly connected to the outer sides of the two guide slide columns; and the two sealing covers are respectively slidably connected to the two oil filling holes.

[0010] Optionally, the inner sides of the two oil storage chambers are provided with multiple groups of oil outlet holes in a circular array; seepage blocks are arranged in the multiple groups of oil outlet holes; the multiple groups of seepage blocks are in contact with the outer walls of the two driving balls respectively; the multiple groups of seepage blocks are all cylindrical block structures made of porous materials.

[0011] Optionally, two groups of connecting slots are symmetrically opened on the outside of the five-way tube; a group of limiting slots are opened in each of the two groups of connecting slots; a group of connecting blocks are fixedly connected to the inner sides of the two built-in rings; and a group of limiting springs are fixedly connected to the outsides of the two groups of connecting blocks.

[0012] Beneficial Effects

[0013] The utility model discloses a high-precision five-way bowl set for mountain bikes, which is used to lubricate the driving balls and to extend the fatigue life of the high-precision five-way bowl set for mountain bikes, thereby maintaining the stability of the performance of the high-precision five-way bowl set for mountain bikes.

[0014] When installing the bowl, the bowl is screwed into the built-in ring through the cooperation of the hollow threaded column and the internal threaded section. At the same time, as the bowl is continuously screwed into the built-in ring, the grooved portion opens to clamp the screwed-in bowl, thereby increasing the connection effect between the bowl and the bottom bracket tube, ensuring the fixing effect of the high-precision bottom bracket bowl of the mountain bike, and further improving the stability of the high-precision bottom bracket bowl of the mountain bike. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] In the attached picture:

[0017] Figure 1 It is an axonometric structural schematic diagram of the utility model.

[0018] Figure 2 It is an axonometric structural diagram of the connection slot of the utility model.

[0019] Figure 3 This utility model Figure 2 A is an enlarged structural diagram of FIG.

[0020] Figure 4 It is a schematic diagram of the axonometric structure of the internal thread section of the utility model.

[0021] Figure 5 It is an axonometric structural schematic diagram of the ball nest of the utility model.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the bowl and plate of the utility model.

[0023] Figure 7 This utility model Figure 6 Schematic diagram of the enlarged structure at B.

[0024] Figure 8 It is an axonometric structural schematic diagram of a bowl and plate section of the utility model.

[0025] Reference numerals list

[0026] 1. Five-way pipe; 101. Connecting slot; 102. Limiting slot; 103. Built-in ring; 104. Connecting plug; 105. Limiting spring; 106. Slot; 107. Internal thread section; 108. Bowl; 109. Hollow threaded column; 110. Limiting ring; 111. Ball nest; 112. Oil outlet hole; 113. Driving ball; 114. Stop ring; 115. Oil storage chamber; 116. Oil filling hole; 117. Mounting sleeve; 118. Guide slide column; 119. Return spring; 120. Sealing cover; 121. Seepage block. DETAILED DESCRIPTION

[0027] In order to make the purpose, scheme and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. Unless otherwise specified, the terms used in this article have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0028] Embodiment 1:

[0029] A high-precision bottom bracket for mountain bikes, please refer to Figures 1 to 8 , including: a five-way pipe 1;

[0030] Two built-in rings 103 are symmetrically arranged on the outer side of the five-way tube 1; a bowl 108 is arranged on the outer side of each of the two built-in rings 103; the two bowls 108 are aligned with each other; a group of slots 106 are opened on the outer side of each of the two built-in rings 103 in a ring array; a limit ring 110 is fixedly connected to the outer side of each of the two bowls 108; the two limit rings 110 are aligned with each other; a ball nest 111 is opened in each of the two bowls 108; a driving ball 113 is arranged in each of the two ball nests 111; a stop ring 114 is arranged in each of the two ball nests 111; the two stop rings 114 are aligned with the positions of the two driving balls 113 respectively.

[0031] An internal thread section 107 is provided in each of the two built-in rings 103 ; a hollow threaded column 109 is fixedly connected to the inner side of each of the two bowls 108 ; the two hollow threaded columns 109 are respectively engaged with the internal thread sections 107 inside the two built-in rings 103 .

[0032] An oil storage cavity 115 is formed in each of the two bowls 108 ; the two oil storage cavities 115 are aligned with the positions of the two driving balls 113 , respectively; and an oil filling hole 116 is formed on the outer side of each of the two oil storage cavities 115 .

[0033] A mounting sleeve 117 is fixedly connected to each of the two oil storage chambers 115; the two mounting sleeves 117 are aligned with the positions of the two oil filling holes 116 respectively; a guide slide post 118 is slidably connected to each of the two mounting sleeves 117; a return spring 119 is fixedly connected to the inner side of each of the two guide slide posts 118; the ends of the two return springs 119 are fixedly connected to the two mounting sleeves 117 respectively; a sealing cover 120 is fixedly connected to the outer side of each of the two guide slide posts 118; the two sealing covers 120 are slidably connected to the two oil filling holes 116 respectively.

[0034] The inner sides of the two oil storage chambers 115 are provided with multiple groups of oil outlet holes 112 in a circular array; each of the multiple groups of oil outlet holes 112 is provided with a seepage block 121; the multiple groups of seepage blocks 121 are in contact with the outer walls of the two driving balls 113 respectively; the multiple groups of seepage blocks 121 are all cylindrical block structures made of porous materials.

[0035] Specific usage and function of this embodiment: when installing the bowl 108, extend the bowl 108 into the built-in ring 103. When the hollow threaded column 109 contacts the internal thread section 107, rotate the bowl 108 so that the bowl 108 is screwed into the built-in ring 103 through the cooperation of the hollow threaded column 109 and the internal thread section 107. At the same time, as the bowl 108 is continuously screwed into the built-in ring 103, the part with the slot 106 is opened to clamp the screwed-in bowl 108, thereby increasing the connection effect between the bowl 108 and the five-way pipe 1. The bowl 108 can be positioned by the setting of the limit ring 110. The oil filling hole 116 can facilitate the staff to inject grease into the oil storage chamber 115 for storage. The stop ring 114 can limit the driving ball 113. During the oil filling process, the oil filling pipe is inserted into the oil filling hole 116 and the sealing cover is pushed 120 moves, and during the movement of the sealing cover 120, the guide slide column 118 will be driven to slide in the installation sleeve 117 and squeeze the return spring 119. The grease can be injected into the oil storage chamber 115 only after the sealing cover 120 is completely pushed into the oil storage chamber 115. After the oil filling is completed, as the oil filling pipe is pulled out from the oil filling hole 116, the sealing cover 120 will be reset with the rebound of the return spring 119, so that the sealing cover 120 seals the oil filling hole 116 to prevent the grease in the oil storage chamber 115 from seeping out. The grease seeping out of the oil outlet hole 112 can be adsorbed and stored by the seepage block 121, and the seepage block 121 will be continuously squeezed during the rotation of the driving ball 113. After the seepage block 121 is squeezed, the adsorbed grease will slowly seep out and be smeared on the outer wall of the driving ball 113 to lubricate the driving ball 113.

[0036] Embodiment 2:

[0037] Based on Example 1, please refer to Figures 1 to 3 , including: a connecting slot 101, a limiting slot 102, a connecting plug 104, and a limiting spring 105. Two groups of connecting slots 101 are symmetrically opened on the outside of the five-way tube 1; a group of limiting slots 102 are opened in each of the two groups of connecting slots 101; a group of connecting plugs 104 are fixedly connected to the inner sides of the two built-in rings 103; a group of limiting springs 105 are fixedly connected to the outsides of the two groups of connecting plugs 104.

[0038] Specific usage and function of this embodiment: When connecting the built-in ring 103 to the bottom bracket tube 1, the staff inserts the built-in ring 103 into the connecting slot 101 through the connecting plug block 104 to connect the built-in ring 103 to the bottom bracket tube 1. At the same time, after the connecting plug block 104 is inserted into the connecting slot 101, the limiting spring piece 105 will bounce into the limiting groove 102 to limit the built-in ring 103, making it convenient for subsequent staff to weld the built-in ring 103 to the bottom bracket tube 1.

Claims

1. A high-precision bottom bracket bowl set for a mountain bike, comprising: A five-way tube (1); two built-in rings (103) are symmetrically arranged on the outer side of the five-way tube (1); a bowl (108) is arranged on the outer side of each of the two built-in rings (103); the positions of the two bowls (108) are aligned; it is characterized in that the outer sides of the two built-in rings (103) are provided with a group of cut grooves (106) in a ring array; the outer sides of the two bowls (108) are fixedly connected with a limit ring (110); the positions of the two limit rings (110) are aligned; a ball nest (111) is opened in each of the two bowls (108); a driving ball (113) is arranged in each of the two ball nests (111); a stop ring (114) is arranged in each of the two ball nests (111); the two stop rings (114) are aligned with the positions of the two driving balls (113) respectively.

2. A high-precision bottom bracket headset for mountain bikes as claimed in claim 1, characterized in that: The two built-in rings (103) are each provided with an internal thread section (107); the inner sides of the two bowls (108) are each fixedly connected with a hollow thread column (109); the two hollow thread columns (109) are respectively meshed with the internal thread sections (107) inside the two built-in rings (103).

3. A high-precision bottom bracket headset for a mountain bike as claimed in claim 1, characterized in that: An oil storage cavity (115) is provided in each of the two bowls (108); the two oil storage cavities (115) are aligned with the positions of the two driving balls (113) respectively; and an oil filling hole (116) is provided on the outside of each of the two oil storage cavities (115).

4. A high-precision bottom bracket headset for a mountain bike as claimed in claim 3, characterized in that: A mounting sleeve (117) is fixedly connected to each of the two oil storage chambers (115); the two mounting sleeves (117) are aligned with the positions of the two oil filling holes (116) respectively; a guide slide column (118) is slidably connected to each of the two mounting sleeves (117); a return spring (119) is fixedly connected to the inner side of each of the two guide slide columns (118); the ends of the two return springs (119) are fixedly connected to the two mounting sleeves (117); a sealing cover (120) is fixedly connected to the outer side of each of the two guide slide columns (118); and the two sealing covers (120) are slidably connected to the two oil filling holes (116) respectively.

5. A high-precision bottom bracket cup assembly for mountain bikes as claimed in claim 3, characterized in that: The inner sides of the two oil storage chambers (115) are provided with a plurality of groups of oil outlet holes (112) in the shape of an annular array; a seepage block (121) is arranged in each of the plurality of groups of oil outlet holes (112); the plurality of groups of seepage blocks (121) are respectively in contact with the outer walls of the two driving balls (113); and the plurality of groups of seepage blocks (121) are cylindrical block structures made of porous material.

6. A high-precision bottom bracket headset for a mountain bike as claimed in claim 1, characterized in that: The outside of the five-way pipe (1) is symmetrically provided with two groups of connection slots (101); a group of limiting slots (102) are provided in each of the two groups of connection slots (101); a group of connection plug blocks (104) are fixedly connected to the inside of the two built-in rings (103); and a group of limiting spring sheets (105) are fixedly connected to the outside of the two groups of connection plug blocks (104).

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