Composite structure front fork tube for vehicle

Abstract

The utility model discloses a composite structure front fork tube for a vehicle, which relates to the technical field of front fork tubes and comprises a shock absorber, a shoulder frame is fixedly connected to the top end of the shock absorber, an adjustable upper tube mechanism is fixedly connected to the top end of the shoulder frame, a protection mechanism is mounted on the shock absorber, and the adjustable upper tube mechanism comprises a fixing sleeve and a mounting tube. Two guide blocks and two locking tooth grooves are fixedly connected to the inner wall of the fixing sleeve, an insertion pipe is fixedly connected to the bottom end of the mounting pipe, two guide sliding grooves are formed in the insertion pipe, and a plurality of pairs of locking tooth blocks are arranged on the insertion pipe. According to the composite structure front fork pipe for the vehicle, the height of the mounting pipe is adjusted by moving the mounting pipe, then the rotating head is rotated, the rotating head rotates to drive the locking tooth block to move, the locking tooth block is meshed with the locking tooth groove in the inner wall of the fixing sleeve, the inserting pipe is fixed, and therefore the mounting height of a handle can be conveniently and effectively adjusted; and the use flexibility and convenience are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of front fork tubes, in particular to a front fork tube with a composite structure for a vehicle. Background Art

[0002] The front fork component is located at the front part of the bicycle structure, its upper end is connected to the handlebar component, the frame component cooperates with the front tube, and the lower end cooperates with the front axle component to form a guide system of the bicycle. In the prior art, the length of the upper tube of the front fork is fixed. After the user installs the handlebar on the upper tube, it is inconvenient to adjust the height of the handlebar, which makes the convenience and flexibility of use less than ideal.

[0003] For example, patent publication number CN208515776U specifically relates to a shoulder-controlled front fork for mountain bikes. The compression and rebound of the air spring make the compression curve of the air chamber smoother, thereby improving the shock absorption effect. The setting of the damping plate prevents the front fork from rebounding too quickly when the vibration is too large and the shock absorber tube reaches the extreme point of its stroke, thereby helping the damping tube to adjust the rebound speed of the shock absorber tube, so that the shock absorber tube will not rebound strongly when it is subjected to a huge impact, and will not affect the normal shock absorption effect of the front fork when it is subjected to a small vibration, thereby improving the smoothness of mountain bike riding. However, the length of the upper tube of this front fork is fixed. After the user installs the handlebar on the upper tube, it is inconvenient to adjust the height of the handlebar, resulting in the problem that the convenience and flexibility of use are not ideal.

[0004] For example, patent publication number CN220221021U specifically discloses a shoulder-controlled front fork for mountain bikes that is easy to adjust. The setting of the limit rod, pin hole, limit seat, fixing pin and mounting nut of the utility model can adjust the stroke of the spring according to the actual shock absorption requirements. However, the length of the upper tube of this front fork is fixed. After the user installs the handlebar on the upper tube, it is inconvenient to adjust the height of the handlebar, which makes the convenience and flexibility of use less than ideal. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a composite structure front fork tube for a vehicle, which solves the problem that the length of the upper tube of the front fork is fixed, and it is inconvenient for the user to adjust the height of the handlebar after installing the handlebar on the upper tube, resulting in less than ideal convenience and flexibility of use.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a composite front fork tube for a vehicle, comprising a shock absorber, a shoulder frame is fixedly connected to the top of the shock absorber, an adjustable upper tube mechanism is fixedly connected to the top of the shoulder frame, and a protective mechanism is installed on the shock absorber;

[0007] The adjustable upper tube mechanism includes a fixed sleeve and a mounting tube, the inner wall of the fixed sleeve is fixedly connected to two guide blocks and two locking tooth grooves, the bottom end of the mounting tube is fixedly connected to a plug tube, two guide grooves are provided on the plug tube, a plurality of pairs of locking tooth blocks are provided on the plug tube, the ends of each pair of two locking tooth blocks are fixedly connected to a limiting block, a guide rod is slidably connected to the limiting block, a movable nut is provided between the two limiting blocks, a connecting seat is fixedly connected to the movable nut and the limiting block, a connecting frame is rotatably connected between two adjacent connecting seats, a plurality of the movable nuts are internally threadedly connected to locking screws, the top end of the locking screw is fixedly connected to a connecting shaft, and the top end of the connecting shaft is fixedly connected to a rotating head.

[0008] Preferably, the fixing sleeve is fixedly mounted at the top center of the shoulder frame, and the fixing sleeve is slidably connected to the mounting tube via an insert pipe.

[0009] Preferably, the two guide blocks match with the two guide slots, and the locking tooth groove matches with the locking tooth block.

[0010] Preferably, the plurality of guide rods are fixedly connected to the inner wall of the cannula, and the end of the locking tooth block passes through the cannula and partially extends to the outside.

[0011] Preferably, one end of the connecting frame is rotatably connected to the movable nut via a connecting seat, and the other end of the connecting frame is rotatably connected to the limit block via a connecting seat.

[0012] Preferably, the locking screw and the connecting shaft are both rotatably connected to the cannula, and a square hole is provided at the center of the top of the rotating head.

[0013] Preferably, the protective mechanism comprises a rubber sleeve, one end of the rubber sleeve is fixedly connected with a plurality of connecting plugs, and the other end of the rubber sleeve is provided with a plurality of connecting holes.

[0014] Preferably, a plurality of the connecting plug blocks are provided with fixing holes, and a plurality of the connecting plug holes are threadedly connected with fixing bolts, and the fixing bolts match the fixing holes.

[0015] Beneficial Effects

[0016] The utility model provides a composite structure front fork tube for a vehicle. Compared with the prior art, it has the following advantages:

[0017] Beneficial effects:

[0018] 1. The composite structure front fork tube of the vehicle is used to adjust the height of the mounting tube by moving the mounting tube, and then rotating the rotating head. The rotation of the rotating head drives the locking tooth block to move, and the locking tooth block is engaged with the locking tooth groove on the inner wall of the fixed sleeve to fix the insert tube, so that the installation height of the handlebar can be effectively adjusted, and the flexibility and convenience of use are effectively improved.

[0019] 2. The composite structure front fork tube for the vehicle can facilitate the disassembly and replacement of the rubber sleeve by inserting the connecting plug into the connecting socket and passing the fixing bolt through the fixing hole and tightening it at the same time, and can prevent dust and sand from entering the shock absorber, thereby improving the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the adjustable upper tube mechanism of the utility model;

[0022] Figure 3 It is a schematic diagram of the connection structure between the rotating head and multiple pairs of locking tooth blocks of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the protection mechanism of the utility model.

[0024] In the figure: 1. shock absorber; 2. adjustable upper tube mechanism; 201. fixing sleeve; 202. mounting tube; 203. guide block; 204. locking tooth groove; 205. insert tube; 206. guide slide groove; 207. locking tooth block; 208. limit block; 209. guide rod; 210. movable nut; 211. connecting seat; 212. connecting frame; 213. locking screw; 214. connecting shaft; 215. rotating head; 3. shoulder frame; 4. protective mechanism; 401. rubber sleeve; 402. connecting plug block; 403. fixing hole; 404. fixing bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-3 The utility model provides a technical solution: a composite structure front fork tube for a vehicle, including a shock absorber 1, a shoulder frame 3 is fixedly connected to the top of the shock absorber 1, an adjustable upper tube mechanism 2 is fixedly connected to the top of the shoulder frame 3, and a protective mechanism 4 is installed on the shock absorber 1. The protective mechanism 4 can protect the piston rod on the shock absorber 1 to prevent dust and sand from entering the inside of the shock absorber 1, and the adjustable upper tube mechanism 2 can be used to effectively adjust the installation height of the handlebar, thereby effectively improving the flexibility and convenience of use.

[0027] The adjustable upper tube mechanism 2 includes a fixed sleeve 201 and a mounting tube 202. The inner wall of the fixed sleeve 201 is fixedly connected to two guide blocks 203 and two locking tooth grooves 204. The bottom end of the mounting tube 202 is fixedly connected to a plug 205. The fixed sleeve 201 is fixedly installed at the top center of the shoulder frame 3, and the fixed sleeve 201 is slidably connected to the mounting tube 202 through the plug 205, so that the height of the fixed sleeve 201 can be adjusted. Two guide grooves 206 are provided on the plug 205. The two guide blocks 203 match the two guide grooves 206 and can guide the movement of the plug 205. A plurality of pairs of locking tooth blocks 207 are provided on the plug 205. The ends of the locking tooth blocks 207 pass through the plug 205 and partially extend Extending to the outside, the locking tooth groove 204 matches the locking tooth block 207, so that the locking tooth block 207 can mesh with the locking tooth groove 204, thereby locking the cannula 205, and the ends of each pair of two locking tooth blocks 207 are fixedly connected to the limiting block 208, which can prevent the locking tooth block 207 from separating from the cannula 205. The limiting block 208 is slidably connected with a guide rod 209, and multiple guide rods 209 are fixedly connected to the inner wall of the cannula 205, which can guide the movement of the limiting block 208. A moving nut 210 is provided between the two limiting blocks 208, and a connecting seat 211 is fixedly connected to the moving nut 210 and the limiting block 208, and a connecting seat 211 is rotatably connected between the two adjacent connecting seats 211. The connecting frame 212 is rotatably connected to the movable nut 210 through the connecting seat 211, and the other end of the connecting frame 212 is rotatably connected to the limit block 208 through the connecting seat 211, so that the movable nut 210 can drive the limit block 208 to move through the connecting frame 212, and the internal threads of the plurality of movable nuts 210 are connected with locking screws 213, and the top of the locking screws 213 is fixedly connected with a connecting shaft 214, and the top of the connecting shaft 214 is fixedly connected with a rotating head 215, and the locking screws 213 and the connecting shaft 214 are both rotatably connected to the cannula 205, and a square hole is provided at the center of the top of the rotating head 215 to facilitate the rotation of the rotating head 215, and the cannula 205 can be moved along the fixed sleeve by moving the mounting tube 202. The inner wall of 201 moves to adjust the height of the mounting tube 202, and then the rotating head 215 is rotated. The rotating head 215 rotates to drive the connecting shaft 214 to rotate. The connecting shaft 214 rotates to drive the locking screw 213 to rotate. The locking screw 213 rotates to drive the moving nut 210 to move. The moving nut 210 moves to drive the connecting frame 212 to rotate. The connecting frame 212 rotates to push the limit block 208 to move along the guide rod 209. The limit block 208 moves to drive the locking tooth block 207 to move, and the locking tooth block 207 is engaged with the locking tooth groove 204 on the inner wall of the fixed sleeve 201 to fix the insertion tube 205, so that the installation height of the handle can be effectively adjusted, and the flexibility and convenience of use can be effectively improved.

[0028] See also Figure 1 and Figure 4The protective mechanism 4 includes a rubber sleeve 401, one end of which is fixedly connected to a plurality of connecting blocks 402, and the other end of the rubber sleeve 401 is provided with a plurality of connecting sockets, and the plurality of connecting blocks 402 are provided with fixing holes 403, and the plurality of connecting sockets are threadedly connected with fixing bolts 404, and the fixing bolts 404 match the fixing holes 403. The connecting blocks 402 can be inserted into the connecting sockets, and the fixing bolts 404 are passed through the fixing holes 403 and tightened at the same time, so that the rubber sleeve 401 can be easily disassembled, assembled and replaced, and dust and sand can be prevented from entering the interior of the shock absorber 1, thereby improving the protective effect.

[0029] During operation, the mounting tube 202 is moved so that the insertion tube 205 moves along the inner wall of the fixed sleeve 201 to adjust the height of the mounting tube 202, and then the rotating head 215 is rotated. The rotation of the rotating head 215 drives the connecting shaft 214 to rotate, and the rotation of the connecting shaft 214 drives the locking screw 213 to rotate. The rotation of the locking screw 213 drives the moving nut 210 to move, and the movement of the moving nut 210 drives the connecting frame 212 to rotate. The rotation of the connecting frame 212 drives the limit block 208 to move along the guide rod 209. The movement of the limit block 208 drives the locking tooth block 207 to move, and the locking tooth block 207 is engaged with the locking tooth groove 204 on the inner wall of the fixed sleeve 201 to fix the insertion tube 205, so that the installation height of the handle can be effectively adjusted, and the flexibility and convenience of use can be effectively improved.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A composite front fork tube for a vehicle, comprising a shock absorber (1), characterized in that: The top of the shock absorber (1) is fixedly connected to a shoulder frame (3), the top of the shoulder frame (3) is fixedly connected to an adjustable upper tube mechanism (2), and a protective mechanism (4) is installed on the shock absorber (1); The adjustable upper tube mechanism (2) comprises a fixing sleeve (201) and a mounting tube (202); the inner wall of the fixing sleeve (201) is fixedly connected with two guide blocks (203) and two locking tooth grooves (204); the bottom end of the mounting tube (202) is fixedly connected with an insert tube (205); the insert tube (205) is provided with two guide sliding grooves (206); the insert tube (205) is provided with a plurality of pairs of locking tooth blocks (207); the ends of each pair of two locking tooth blocks (207) are fixedly connected with a limit block (208); the limit block (208) slides upwardly A guide rod (209) is movably connected thereto; a movable nut (210) is provided between the two limit blocks (208); a connecting seat (211) is fixedly connected to the movable nut (210) and the limit block (208); a connecting frame (212) is rotatably connected between two adjacent connecting seats (211); a plurality of movable nuts (210) are internally threadedly connected thereto with locking screws (213); the top end of the locking screws (213) is fixedly connected to a connecting shaft (214); and the top end of the connecting shaft (214) is fixedly connected to a rotating head (215).

2. The composite front fork tube for a vehicle according to claim 1, characterized in that: The fixing sleeve (201) is fixedly mounted at the top center of the shoulder frame (3), and the fixing sleeve (201) is slidably connected to the mounting tube (202) via an inserting tube (205).

3. The composite front fork tube for a vehicle according to claim 1, characterized in that: The two guide blocks (203) match the two guide slide grooves (206), and the locking tooth groove (204) matches the locking tooth block (207).

4. The composite front fork tube for a vehicle according to claim 1, characterized in that: The plurality of guide rods (209) are fixedly connected to the inner wall of the insertion tube (205), and the end of the locking tooth block (207) passes through the insertion tube (205) and partially extends to the outside.

5. The composite front fork tube for a vehicle according to claim 1, characterized in that: One end of the connecting frame (212) is rotatably connected to the movable nut (210) via a connecting seat (211), and the other end of the connecting frame (212) is rotatably connected to the limit block (208) via the connecting seat (211).

6. The composite front fork tube for a vehicle according to claim 1, characterized in that: The locking screw (213) and the connecting shaft (214) are both rotatably connected to the cannula (205), and a square hole is provided at the center of the top of the rotating head (215).

7. The composite front fork tube for a vehicle according to claim 1, characterized in that: The protection mechanism (4) comprises a rubber sleeve (401), one end of the rubber sleeve (401) is fixedly connected to a plurality of connection plug blocks (402), and the other end of the rubber sleeve (401) is provided with a plurality of connection plug holes.

8. The composite front fork tube for a vehicle according to claim 7, characterized in that: A plurality of the connection plug blocks (402) are each provided with a fixing hole (403), and a plurality of the connection plug holes are each threadedly connected with a fixing bolt (404), and the fixing bolt (404) matches the fixing hole (403).

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