An assembled bicycle fork

Abstract

The utility model relates to the technical field of bicycle front fork, concretely is a kind of assembled bicycle front fork, including shoulder, shoulder both ends are equipped with plug post, round tank lower side is equipped with movable rod, movable rod top is equipped with stand, sleeve is equipped on movable rod outer wall, two sleeve top between being equipped with connecting plate, sleeve outer wall bottom place is equipped with the positioning block for front wheel installation, and the sleeve top and plug post between being equipped with corrugated sleeve;The assembled bicycle front fork, set up the shoulder with plug rod, under the cooperation of two plug posts, through the round tank and the stand of movable rod top plug-in cooperation, and the limiting slot in limiting strip and round tank correspondingly plug-in cooperation, flat head bolt is connected with screw thread by passing through counterbore and screw hole, realize movable rod and plug post combination installation, movable rod bottom cooperation damper, and first spring connects slide bar with movable rod, second spring connects damper with sleeve, sleeve bottom with the positioning block of snap groove cooperation, it is convenient for front wheel corresponding fixed installation.

Description

Technical Field

[0001] This utility model relates to the field of bicycle front fork technology, specifically to an assembled bicycle front fork. Background Technology

[0002] The bicycle front fork is a key component located at the front of the bicycle. It connects the handlebars to the frame at the top and fixes the front wheel axle at the bottom, forming a complete steering system responsible for controlling the direction and cushioning the impact of the road surface. However, bicycle forks are not easy to assemble and match. If different parts are damaged, they can be disassembled and replaced separately to reduce the waste of materials from replacing the whole fork. Also, when assembling the fork, it is not easy to wrap and protect the joints to reduce the entry of water droplets or dust particles from the outside environment into the gaps and affect the long-term use. Utility Model Content

[0003] The purpose of this invention is to provide an assembled bicycle front fork to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An assemblable bicycle front fork includes a shoulder, with posts at both ends of the shoulder. A countersunk hole is formed at the top of each post, and a circular groove is formed at the bottom of the post. A movable rod is located below the circular groove, and a column is formed at the top of the movable rod. Several limiting strips are provided on the outer wall of the column, and several limiting grooves are provided on the inner wall of the circular groove. A sleeve is fitted onto the outer wall of the movable rod, and a connecting plate is provided between the tops of two sleeves. A positioning block for mounting the front wheel is provided at the bottom of the outer wall of each sleeve. A corrugated sleeve is provided between the top of the sleeve and the post, and a sliding hole is formed at the top of the sleeve. Each movable rod has a movable groove at its bottom, a round hole at the top of the movable groove, a damper below the movable groove, a first spring on the lower surface of the damper, a sliding rod on the upper surface of the damper, the top of the sliding rod being inserted into the round hole, and a second spring being sleeved on the outer wall of the sliding rod.

[0005] Furthermore, a rod is provided at the top of the middle position of the shoulder, and the rod and the shoulder are integrally formed. The post and the shoulder are integrally formed.

[0006] In this invention, the insert rod facilitates the insertion and rotation of the insert shoulder into the bottom of the bicycle frame, while the two insert posts facilitate locking onto the sides of the front wheel.

[0007] Specifically, a limiting ring is provided at the bottom of the outer wall of the insert post. The limiting ring and the insert post are integrally formed. The top of the corrugated sleeve is bonded and fixed to the bottom of the limiting ring, and the bottom of the corrugated sleeve is bonded and fixed to the top of the sleeve.

[0008] In this invention, with the cooperation of the limiting ring, a mounting point is provided at the top of the corrugated sleeve. The corrugated sleeve has elasticity and can cover any changes in the length between the insert and the sleeve.

[0009] It should be noted that the sleeve and the positioning block are integrally formed, and the bottom of the positioning block is provided with a slot.

[0010] In this invention, a positioning block with a slot is used to enable the front wheel axle to be inserted into the corresponding slot. Both ends of the axle are fixed to the positioning block with nuts, and the slot opening is open to the outside, which facilitates the disassembly and replacement of the front wheel.

[0011] Furthermore, the two ends of the connecting plate are welded and fixed to the outer wall of the sleeve, and a fixing hole is provided at the middle of the top of the connecting plate.

[0012] In this invention, the connecting plate connects two sleeves, increasing the stability of the assembly and enabling the two sleeves to be horizontally inserted into the movable rod for installation. With the help of the fixing hole, it facilitates the installation of the bicycle's water shield.

[0013] It is worth noting that the inner diameter of the sliding hole is adapted to the outer diameter of the movable rod, the outer diameter of the damper is adapted to the outer diameter of the movable rod, the bottom of the sliding rod is bonded and fixed to the top of the damper, the outer diameter of the sliding rod is adapted to the inner diameter of the circular hole, the top of the first spring is fixedly connected to the bottom of the damper, the bottom of the first spring is fixedly connected to the bottom of the sliding hole, the bottom of the second spring is fixedly connected to the upper surface of the damper, the top of the second spring extends into the movable groove, and the top of the second spring is fixedly connected to the top of the movable groove.

[0014] In this invention, the damper is connected to the sliding hole, and the movable rod is also connected to the sliding hole. The sliding rod slides up and down in the round hole. With the cooperation of the second spring and the first spring, and in conjunction with the damper, the impact of the front wheel's bumpy vibration on the handlebars is reduced.

[0015] In addition, the column and the movable rod are integrally formed, the outer diameter of the column matches the inner diameter of the circular groove, the limiting strips are distributed in a ring at equal intervals, the limiting strips and the column are integrally formed, the outer diameter of the limiting strips matches the inner diameter of the limiting groove, and a screw hole is opened at the top of the column, in which a flat-head bolt is installed, the flat-head bolt passes through the countersunk hole and is threaded into the screw hole. In this utility model, the limiting strip and the limiting groove are inserted together to limit the rotation of the column in the circular groove. The top of the flat-head bolt is flush with the top of the countersunk hole, and the bottom end of the flat-head bolt passes through the countersunk hole and is threadedly connected to the screw hole, so as to realize the combination and fixation of the insert and the movable rod. The flat-head bolt can be disassembled to facilitate the disassembly and separation of the movable rod and the insert.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model features a shoulder with a plug rod. With the cooperation of two plug posts, the plug rod is inserted into the column at the top of the movable rod via a circular groove. The limiting strip is inserted into the limiting groove in the circular groove. A flat-head bolt passes through the countersunk hole and is threaded into the screw hole, thus realizing the combined installation of the movable rod and the plug post. A damper is fitted at the bottom of the movable rod, and a sliding rod is inserted into the movable rod via the damper. A first spring connects the sliding rod and the movable rod, and a second spring connects the damper and the sleeve. With the positioning block with a slot at the bottom of the sleeve, the front wheel can be fixedly installed.

[0017] 2. This utility model features a sleeve that slides on the movable rod. A retractable corrugated sleeve is used between the sleeve and the insert to cover the gap between the sleeve and the movable rod, reducing the entry of external rainwater and dust particles into the gap and affecting the sliding between the movable rod and the sleeve. The flat-head bolts can be removed to facilitate the separation of the movable rod and the insert, making it easier to replace them individually and reducing the waste of materials when replacing the whole rod. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the combined structure of the insert and the movable rod of this utility model; Figure 3 This is a schematic diagram of the separation structure of the insert and the movable rod of this utility model; Figure 4 This is a bottom-view schematic diagram of the raglan sleeve of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the movable rod of this utility model; Figure 6 This is a schematic diagram of the combined structure of the sleeve and the corrugated sleeve of this utility model.

[0019] The meanings of the labels in the diagram are as follows: 1. Shoulder; 10. Insert post; 100. Countersunk hole; 101. Limiting ring; 102. Circular groove; 103. Limiting groove; 11. Insert rod; 2. Corrugated sleeve; 3. Sleeve; 30. Sliding hole; 31. Positioning block; 310. Slot; 32. Connecting plate; 320. Fixing hole; 4. Movable rod; 40. Column; 400. Limiting strip; 401. Screw hole; 402. Flat head bolt; 41. Movable groove; 410. Round hole; 42. Damper; 420. First spring; 421. Slide rod; 422. Second spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-6 This embodiment provides a technical solution: An assembled bicycle front fork includes a shoulder 1, with a rod 11 located at the top of the middle position of the shoulder 1. The rod 11 and the shoulder 1 are integrally formed, and the post 10 and the shoulder 1 are integrally formed.

[0022] In this utility model, with the cooperation of the insert rod 11, it is convenient for the insert shoulder 1 to be inserted and connected to the bottom of the bicycle frame and to be rotated. With the cooperation of the two insert posts 10, it is convenient to be locked on both sides of the front wheel.

[0023] Furthermore, each end of the insert shoulder 1 is provided with a post 10, the top of the post 10 is provided with a countersunk hole 100, the bottom of the post 10 is provided with a circular groove 102, the bottom of the circular groove 102 is provided with a movable rod 4, the top of the movable rod 4 is provided with a column 40, the outer wall of the column 40 is provided with several limiting strips 400, the inner wall of the circular groove 102 is provided with several limiting grooves 103, the outer wall of the movable rod 4 is fitted with a sleeve 3, the top of the two sleeves 3 is provided with a connecting plate 32, the two ends of the connecting plate 32 are respectively welded and fixed to the outer wall of the sleeve 3, and a fixing hole 320 is provided at the middle of the top of the connecting plate 32.

[0024] In this utility model, the connecting plate 32 connects two sleeves 3, increasing the stability of the assembly and enabling the two sleeves 3 to be horizontally inserted into the movable rod 4. With the cooperation of the fixing hole 320, it is convenient to install the water shield of the bicycle.

[0025] Specifically, the bottom of the outer wall of the sleeve 3 is provided with a positioning block 31 for the installation of the front wheel. The sleeve 3 and the positioning block 31 are integrally formed. The bottom of the positioning block 31 is provided with a slot 310.

[0026] In this utility model, the positioning block 31 with the slot 310 enables the front wheel axle to be inserted into the corresponding slot 310. Both ends of the axle are fixed to the positioning block 31 by nuts, and the opening of the slot 310 is connected to the outside, which facilitates the disassembly and replacement of the front wheel.

[0027] Secondly, a corrugated sleeve 2 is provided between the top of the sleeve 3 and the insert 10; It should be noted that a limiting ring 101 is provided at the bottom of the outer wall of the insert 10. The limiting ring 101 and the insert 10 are integrally formed. The top of the corrugated sleeve 2 is bonded and fixed to the bottom of the limiting ring 101, and the bottom of the corrugated sleeve 2 is bonded and fixed to the top of the sleeve 3.

[0028] In this utility model, with the cooperation of the limiting ring 101, a top mounting point is provided for the corrugated sleeve 2. The corrugated sleeve 2 has elasticity and can wrap and cover the length of the insert 10 and the sleeve 3, regardless of the length change.

[0029] Furthermore, each of the movable rods 4 has a movable groove 41 at its bottom, a round hole 410 at the top of the movable groove 41, a damper 42 below the movable groove 41, a first spring 420 on the lower surface of the damper 42, a slide rod 421 on the upper surface of the damper 42, the top of the slide rod 421 is inserted into the round hole 410, and a second spring 422 is sleeved on the outer wall of the slide rod 421.

[0030] It is worth noting that the top of the sleeve 3 is provided with a sliding hole 30, the inner diameter of which is adapted to the outer diameter of the movable rod 4, the outer diameter of the damper 42 is adapted to the outer diameter of the movable rod 4, the bottom of the sliding rod 421 is bonded and fixed to the top of the damper 42, the outer diameter of the sliding rod 421 is adapted to the inner diameter of the round hole 410, the top of the first spring 420 is fixedly connected to the bottom of the damper 42, the bottom of the first spring 420 is fixedly connected to the bottom of the sliding hole 30, the bottom of the second spring 422 is fixedly connected to the upper surface of the damper 42, the top of the second spring 422 extends into the movable groove 41, and the top of the second spring 422 is fixedly connected to the top of the movable groove 41.

[0031] In this invention, the damper 42 is inserted into the sliding hole 30, and the movable rod 4 is inserted into the sliding hole 30. The sliding rod 421 slides up and down in the round hole 410. With the cooperation of the second spring 422 and the first spring 420, and in conjunction with the damper 42, the impact of the front wheel's bumpy vibration on the handlebars is reduced.

[0032] In addition, the column 40 and the movable rod 4 are integrally formed. The outer diameter of the column 40 matches the inner diameter of the circular groove 102. The limiting strips 400 are distributed in a ring at equal intervals. The limiting strips 400 and the column 40 are integrally formed. The outer diameter of the limiting strips 400 matches the inner diameter of the limiting groove 103. A screw hole 401 is opened at the top of the column 40. A flat-head bolt 402 is installed in the screw hole 401. The flat-head bolt 402 passes through the countersunk hole 100 and is threadedly connected to the screw hole 401. In this utility model, the limiting strip 400 is inserted into the limiting groove 103 to restrict the rotation of the column 40 in the circular groove 102. The top of the flat-head bolt 402 is flush with the top of the countersunk hole 100, and the bottom of the flat-head bolt 402 passes through the countersunk hole 100 and is threadedly connected to the screw hole 401, so as to realize the combination and fixation of the insert 10 and the movable rod 4. The flat-head bolt 402 can be disassembled to facilitate the disassembly and separation of the movable rod 4 and the insert 10.

[0033] In this embodiment of the assembled bicycle front fork, when in use, the sliding rod 421 with the second spring 422 is first inserted into the movable groove 41 at the bottom of the movable rod 4 and extends into the round hole 410. The bottom of the first spring 420 extends into the sliding hole 30 of the sleeve 3. The top of the first spring 420 is fixedly connected to the lower surface of the damper 42. Then, the bottom of the movable rod 4 is slidably inserted into the sliding hole 30 of the sleeve 3. The top of the movable rod 4 is inserted into the round groove 102 through the column 40. The limiting strip 400 is correspondingly inserted into the limiting groove 103. The flat head bolt 402 passes through the countersunk hole 100 and is threadedly connected to the screw hole 401 to realize the combination and fixation of the movable rod 4 and the insert 10. Then, the top of the corrugated sleeve 2 is bonded to the limiting ring 101 and the bottom of the corrugated sleeve 2 is bonded to the top outer wall of the sleeve 3 to realize the protection of the gap between the movable rod 4 and the sleeve 3 and reduce the interference of water droplets and dust in the external environment. The top of the ferrule 1 is rotated and combined with the bicycle frame via the insert rod 11 to achieve corresponding assembly. Then, the front wheel to be installed is inserted into the slot 310 on the positioning block 31 via the axle and fixed by the nut assembly. When the corresponding ferrule 1, movable rod 4, sleeve 3 or corrugated sleeve 2 is damaged and needs to be replaced, the flat head bolt 402 is taken out from the countersunk hole 100, and the movable rod 4 is easy to take out and replace, reducing the waste of materials for overall replacement. The ferrule 1, sleeve 3 and corrugated sleeve 2 can all be replaced individually, saving costs.

Claims

1. An assembled bicycle front fork, including a shoulder (1), characterized in that: Both ends of the insert (1) are provided with insert posts (10), the top of the insert post (10) is provided with a countersunk hole (100), the bottom of the insert post (10) is provided with a circular groove (102), the bottom of the circular groove (102) is provided with a movable rod (4), the top of the movable rod (4) is provided with a column (40), the outer wall of the column (40) is provided with several limiting strips (400), the inner wall of the circular groove (102) is provided with several limiting grooves (103), the outer wall of the movable rod (4) is provided with a sleeve (3), the top of the two sleeves (3) is provided with a connecting plate (32), the bottom of the outer wall of the sleeve (3) is provided with a positioning block (31) for front wheel installation, the top of the sleeve (3) is provided with a corrugated sleeve (2) between the insert post (10), and the top of the sleeve (3) is provided with a sliding hole (30). The bottom of each movable rod (4) is provided with a movable groove (41), the top of the movable groove (41) is provided with a round hole (410), a damper (42) is provided below the movable groove (41), a first spring (420) is provided on the lower surface of the damper (42), a slide rod (421) is provided on the upper surface of the damper (42), the top of the slide rod (421) is inserted into the round hole (410), and a second spring (422) is sleeved on the outer wall of the slide rod (421).

2. The assembled bicycle front fork according to claim 1, characterized in that: The insert (1) has a rod (11) at the top of the middle position of the insert (1). The rod (11) and the insert (1) are integrally formed. The insert post (10) and the insert (1) are integrally formed.

3. The assembled bicycle front fork according to claim 1, characterized in that: A limiting ring (101) is provided at the bottom of the outer wall of the insert (10). The limiting ring (101) and the insert (10) are integrally formed. The top of the corrugated sleeve (2) is bonded and fixed to the bottom of the limiting ring (101), and the bottom of the corrugated sleeve (2) is bonded and fixed to the top of the sleeve (3).

4. The assembled bicycle front fork according to claim 1, characterized in that: The sleeve (3) and the positioning block (31) are integrally formed, and the bottom of the positioning block (31) is provided with a slot (310).

5. The assembled bicycle front fork according to claim 1, characterized in that: The two ends of the connecting plate (32) are welded and fixed to the outer wall of the sleeve (3), and a fixing hole (320) is provided at the middle of the top of the connecting plate (32).

6. The assembled bicycle front fork according to claim 1, characterized in that: The inner diameter of the sliding hole (30) is adapted to the outer diameter of the movable rod (4), the outer diameter of the damper (42) is adapted to the outer diameter of the movable rod (4), the bottom of the sliding rod (421) is bonded and fixed to the top of the damper (42), the outer diameter of the sliding rod (421) is adapted to the inner diameter of the round hole (410), the top of the first spring (420) is fixedly connected to the bottom of the damper (42), the bottom of the first spring (420) is fixedly connected to the bottom of the sliding hole (30), the bottom of the second spring (422) is fixedly connected to the upper surface of the damper (42), the top of the second spring (422) extends into the movable groove (41), and the top of the second spring (422) is fixedly connected to the top of the movable groove (41).

7. The assembled bicycle front fork according to claim 1, characterized in that: The column (40) and the movable rod (4) are integrally formed. The outer diameter of the column (40) is adapted to the inner diameter of the circular groove (102). The limiting strips (400) are distributed in a ring at equal intervals. The limiting strips (400) and the column (40) are integrally formed. The outer diameter of the limiting strips (400) is adapted to the inner diameter of the limiting groove (103). The top of the column (40) is provided with a screw hole (401). A flat-head bolt (402) is provided in the screw hole (401). The flat-head bolt (402) passes through the countersunk hole (100) and is threadedly connected to the screw hole (401).

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