Novel front synchronizing wheel with safe edge structure
By setting alternating distribution of locating rods and reinforcing rods on the front synchronous pulley, and by precisely connecting the edge protection assembly, the problem of reinforcing and protecting the front synchronous pulley in the prior art is solved, thereby improving transmission stability and service life.
Patent Information
- Application Number
- CN202520178739.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The existing front synchronous pulley structure is not easy to reinforce internally and lacks edge protection, which can easily lead to the connecting belt loosening.
A novel front synchronous pulley with a built-in edge protection structure is designed. It is internally reinforced by setting a locking rod and a reinforcing rod on the synchronous pulley, and protected by an edge protection assembly, including the precise fit and threaded connection of components such as connecting seat, connecting seat, and mounting seat.
The internal reinforcement and edge protection of the front synchronous pulley have been implemented, which prevents the connecting belt from loosening and improves transmission stability and service life.
Smart Images

Figure CN223672731U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to front synchronous wheel technical field, concretely is a novel front synchronous wheel with edge protection structure. BACKGROUND
[0002] Synchronous pulley refers to generally by steel, aluminum alloy, cast iron, brass etc. material manufacture, its inner hole has round hole, D shape hole, taper hole etc. form, synchronous pulley transmission is by a closed ring belt that is equipped with equidistance tooth on the inner circumference surface and the corresponding pulley is composed, when moving, the tooth and the tooth groove of pulley are engaged transmission movement and power, it is a kind of engagement transmission, thus has the various characteristics of gear transmission, chain transmission and flat belt transmission, synchronous wheel is the part that bicycle axle and crank are connected, people drive crank through pedaling, and then drive the rotation of synchronous wheel, finally through chain and freewheel, drive rear wheel rotation, provide power, complete the whole transmission chain of bicycle, the front synchronous wheel of prior art is mostly bare structure, it is difficult to avoid the loosening of connecting belt and front synchronous wheel, therefore, design a novel front synchronous wheel with edge protection structure is very important, for example:
[0003] The synchronous pulley provided by Chinese patent authorization announcement No. CN219549540U belongs to the field of synchronous pulleys. The synchronous pulley body is provided with a tooth groove engaged with the synchronous belt. An assembly hole is formed on the surface of the synchronous pulley body. The synchronous pulley further includes a step protruding radially on the inner wall of the assembly hole and a limiting ring recessed radially on the inner wall of the assembly hole. A bearing is arranged in the assembly hole. The lower end surface of the bearing is in contact with the surface of the step. An elastic ring is arranged in the limiting ring, and the elastic ring is in contact with the surface of the bearing and always provides elastic force to the bearing to press against the surface of the step. The synchronous pulley has the beneficial effect of providing a synchronous pulley with stable rotation.
[0004] However, the prior art has the following defects: it is inconvenient to internally reinforce the front synchronous wheel, and it is also inconvenient to protect the edges of the front synchronous wheel. Therefore, the utility model provides a novel front synchronous wheel with edge protection structure to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a novel front synchronous wheel with edge protection structure to solve the problems of inconvenient internal reinforcement of the front synchronous wheel and inconvenient edge protection of the front synchronous wheel in the background art.
[0006] In order to achieve the above object, the utility model provides the following technical scheme: A novel front synchronous wheel with edge protection structure, including the connecting seat, the inside of connecting seat is provided with footrest connecting piece body, and the outside of footrest connecting piece body is installed with connecting block, still including the connecting rod who sets up in the inside of footrest connecting piece body, and the outside of connecting rod is provided with connecting wheel, the rear side of connecting seat is provided with the link seat, and the outside of link seat is installed with link rod, and the inside of link rod is provided with reinforcing rod,
[0007] The synchronous wheel body is arranged on the outside of the link rod, the outside of the synchronous wheel body is provided with a protective ring, the outside of the protective ring is installed with a synchronous block, the rear side of the synchronous wheel body is provided with a mounting seat, a limiting groove is formed in the inside of the mounting seat, the outside of the mounting seat is provided with an edge protection assembly, and the edge protection assembly comprises an edge protection plate arranged on the outside of the mounting seat.
[0008] Preferably, the connecting block is symmetrically arranged above and below about the center line of the footrest connecting piece body, and the footrest connecting piece body is in clamping connection with the connecting seat.
[0009] Preferably, the connecting rod penetrates the inside of the footrest connecting piece body, and the connecting wheel is symmetrically arranged left and right about the center line of the connecting rod.
[0010] Preferably, the link rod is arranged at equal angles about the center of the link seat, the reinforcing rod is alternately arranged with the link rod, and the reinforcing rod has an arc-shaped structure.
[0011] Preferably, the synchronous block is arranged at equal angles about the center of the protective ring, and the synchronous block has a toothed structure.
[0012] Preferably, the limiting groove is arranged at equal angles about the center of the mounting seat, and the positioning block is in clamping connection with the mounting seat through the limiting groove.
[0013] Preferably, the positioning block is arranged at equal angles about the center of the edge protection plate, and the positioning bolt is in threaded connection with the positioning block.
[0014] Compared with the prior art, the novel front synchronous wheel with edge protection structure has the following beneficial effects: the link rod and the reinforcing rod are additionally installed, the link rod is distributed at equal angles on the outside of the link seat, the reinforcing rod and the link rod are alternately arranged in an arc line, the internal reinforcement of the front synchronous wheel is facilitated, the edge protection assembly and the mounting seat are additionally installed, the edge protection of the front synchronous wheel is facilitated, and the specific operation is as follows:
[0015] 1、The connecting rod and the connecting wheel are arranged, the connecting block on the outer side of the pedal connecting piece body is aligned with the corresponding groove in the connecting seat, the pedal connecting piece body and the connecting block are clamped with the connecting seat, the connecting rod is penetrated into the inner part of the connecting seat and the pedal connecting piece body, the connecting wheels are screwed on the left and right sides of the connecting rod, the connecting wheels on the left and right sides are pressed, the connection between the connecting seat and the pedal connecting piece body is more compact, and the front synchronous wheel and the pedal connecting piece are quickly assembled.
[0016] 2、The connecting rod and the connecting wheel are arranged, the connecting block on the outer side of the pedal connecting piece body is aligned with the corresponding groove in the connecting seat, the connecting rod is penetrated into the inner part of the connecting seat and the pedal connecting piece body, the connecting wheels are screwed on the left and right sides of the connecting rod, the connecting wheels on the left and right sides are pressed, the connection between the connecting seat and the pedal connecting piece body is more compact, and the front synchronous wheel and the pedal connecting piece are quickly assembled.
[0017] 3、The mounting seat and the edge protection assembly are arranged, the edge protection plate is nested on the outer side of the mounting seat, the positioning block on the inner side of the edge protection plate is aligned with and clamped with the limiting groove in the mounting seat, the positioning bolt is tightened, the positioning block and the mounting seat are connected and reinforced by the positioning bolt, at this time, the synchronous block and the mounting seat are positioned and cannot be deviated, and the edge protection of the front synchronous wheel is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a front view of the sectional structure of the utility model;
[0019] Figure 2 It is a connecting seat and a connecting seat connecting overall structure schematic view of the utility model;
[0020] Figure 3 It is a pedal connecting piece body and a connecting block connecting overall structure schematic view of the utility model;
[0021] Figure 4 It is an edge protection assembly and a mounting seat connecting overall explosion structure schematic view of the utility model;
[0022] Figure 5 It is a Figure 1 The enlarged structure schematic view of A in the utility model.
[0023] In the drawing: 1, connecting seat; 2, pedal connecting piece body; 3, connecting block; 4, connecting rod; 5, connecting wheel; 6, connecting seat; 7, connecting rod; 8, reinforcing rod; 9, synchronous wheel body; 10, protection ring; 11, synchronous block; 12, mounting seat; 13, limiting groove; 14, edge protection assembly; 1401, edge protection plate; 1402, positioning block; 1403, positioning bolt. PREFERRED EMBODIMENT
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0025] Please refer to Figures 1-5 The utility model provides a technical scheme: a novel front synchronous wheel with edge protection structure, which comprises a connecting seat 1, a foot pedal connecting piece body 2 is arranged in the connecting seat 1, a connecting block 3 is arranged on the outside of the foot pedal connecting piece body 2, a connecting rod 4 is arranged in the foot pedal connecting piece body 2, a connecting wheel 5 is arranged on the outside of the connecting rod 4, a connecting seat 6 is arranged on the rear side of the connecting seat 1, a connecting rod 7 is arranged on the outside of the connecting seat 6, and a reinforcing rod 8 is arranged on the inside of the connecting rod 7.
[0026] A synchronous wheel body 9 is arranged on the outside of the connecting rod 7, a protection ring 10 is arranged on the outside of the synchronous wheel body 9, a synchronous block 11 is arranged on the outside of the protection ring 10, an installation seat 12 is arranged on the rear side of the synchronous wheel body 9, a limiting groove 13 is formed in the installation seat 12, an edge protection assembly 14 is arranged on the outside of the installation seat 12, and the edge protection assembly 14 comprises an edge protection plate 1401 arranged on the outside of the installation seat 12, a positioning block 1402 is arranged on the inside of the edge protection plate 1401, a positioning bolt 1403 is connected to the inside of the positioning block 1402, and the edge protection plate 1401, the positioning block 1402 and the positioning bolt 1403 are combined to form a novel front synchronous wheel with edge protection structure.
[0027] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , the connecting block 3 is symmetrically arranged about the center line of the foot pedal connecting piece body 2, the foot pedal connecting piece body 2 is clamped and connected to the connecting seat 1, the connecting rod 4 penetrates the inside of the foot pedal connecting piece body 2, and the connecting wheel 5 is symmetrically arranged about the center line of the connecting rod 4. The connecting block 3 on the outside of the foot pedal connecting piece body 2 is aligned with the corresponding groove in the inside of the connecting seat 1, so that the foot pedal connecting piece body 2 and the connecting block 3 are clamped to the connecting seat 1. The connecting rod 4 penetrates the inside of the connecting seat 1 and the foot pedal connecting piece body 2 at the connection position, and the connecting wheel 5 is screwed on the left and right sides of the connecting rod 4, so that the left and right connecting wheels 5 are pressed tightly, and the connection between the connecting seat 1 and the foot pedal connecting piece body 2 is more compact, facilitating the quick assembly of the front synchronous wheel and the foot pedal connecting piece.
[0028] As shown in Figure 1 and Figure 2As shown, the engaging rods 7 are arranged at equal angles about the center of the engaging seat 6, and the reinforcing rods 8 are arranged alternately with the engaging rods 7, and the reinforcing rods 8 are in arc-shaped structure, the synchronous blocks 11 are arranged at equal angles about the center of the protective ring 10, and the synchronous blocks 11 are in tooth-shaped structure, the engaging rods 7 are arranged at equal angles outside the engaging seat 6, and the arc-shaped reinforcing rods 8 are arranged alternately with the engaging rods 7, so that the internal reinforcement of the front synchronous wheel is facilitated.
[0029] As shown in Figure 1 and Figure 4 shown, the limiting grooves 13 are arranged at equal angles about the center of the mounting seat 12, and the positioning blocks 1402 are connected with the mounting seat 12 through the limiting grooves 13, the positioning blocks 1402 are arranged at equal angles about the center of the edge protection plate 1401, and the positioning bolts 1403 are threadedly connected with the positioning blocks 1402, the edge protection plate 1401 is nested outside the mounting seat 12, so that the positioning blocks 1402 inside the edge protection plate 1401 are aligned with and clamped with the limiting grooves 13 inside the mounting seat 12, the positioning bolts 1403 are tightened, so that the positioning blocks 1402 and the mounting seat 12 are connected and reinforced through the positioning bolts 1403, at this time, the synchronous blocks 11 and the mounting seat 12 are positioned and cannot be deviated, so that the edge protection of the front synchronous wheel is facilitated, which is the use method of the novel front synchronous wheel with the edge protection structure.
[0030] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.
[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A novel front synchronizing wheel with a self-protection structure, comprising a connecting seat (1), the inside of the connecting seat (1) is provided with a pedal connecting body (2), and the outside of the pedal connecting body (2) is provided with a connecting block (3), characterized in that: The connecting rod (4) is arranged inside the pedal connecting body (2), and the outer side of the connecting rod (4) is provided with a connecting wheel (5); the rear side of the connecting seat (1) is provided with a connecting seat (6), and the outer side of the connecting seat (6) is provided with a connecting rod (7); and the inner side of the connecting rod (7) is provided with a reinforcing rod (8). The synchronous wheel body (9) is arranged on the outer side of the connecting rod (7), and the outer side of the synchronous wheel body (9) is provided with a protective ring (10), and the outer side of the protective ring (10) is provided with a synchronous block (11); the rear side of the synchronous wheel body (9) is provided with a mounting seat (12), and the inner side of the mounting seat (12) is provided with a limiting groove (13); the outer side of the mounting seat (12) is provided with a guard plate assembly (14), and the guard plate assembly (14) comprises a guard plate (1401) arranged on the outer side of the mounting seat (12); the inner side of the guard plate (1401) is provided with a positioning block (1402), and the inner side of the positioning block (1402) is provided with a positioning bolt (1403).
2. A novel front synchronizing wheel with self-knocking structure according to claim 1, characterized in that: The connecting block (3) is symmetrically arranged about the center line of the pedal connecting body (2), and the pedal connecting body (2) is clamped and connected with the connecting seat (1).
3. A novel front synchronizing wheel with self-knocking structure according to claim 1, characterized in that: The connecting rod (4) penetrates the inside of the pedal connecting body (2), and the connecting wheel (5) is symmetrically arranged about the center line of the connecting rod (4).
4. A novel front synchronizing wheel with self-knocking structure according to claim 1, characterized in that: The connecting rod (7) is arranged at equal angles about the center of the connecting seat (6), and the reinforcing rod (8) is alternately arranged with the connecting rod (7), and the reinforcing rod (8) is in an arc-shaped structure.
5. A novel front synchronizing wheel with self-knocking structure according to claim 1, characterized in that: The synchronous block (11) is arranged at equal angles about the center of the protective ring (10), and the synchronous block (11) is in a toothed structure.
6. A novel front pulley with self-knocking structure according to claim 1, characterized in that: The limiting groove (13) is arranged at equal angles about the center of the mounting seat (12), and the positioning block (1402) is clamped and connected with the mounting seat (12) through the limiting groove (13).
7. A novel front synchronizing wheel with self-knocking structure according to claim 6, characterized in that: The positioning block (1402) is arranged at equal angles about the center of the guard plate (1401), and the positioning bolt (1403) is threadedly connected with the positioning block (1402).
Citation Information
Patent Citations
Synchronous pulley
CN219549540U