Pedal quick-release anti-loosening mechanism

Abstract

The utility model discloses a quick-release anti-loosening mechanism for a pedal. The quick-release anti-loosening mechanism comprises a pedal suite consisting of a pedal body and a quick-release mandrel, the quick-release external member is mounted on a bicycle crank; the quick-release suite consists of an inner shaft sleeve, an outer shaft sleeve, a steel ball and a spring; a quick-plug connecting hole is formed in the inner shaft sleeve, and a quick-plug connector is formed at one end of the quick-release mandrel; a lock hole is formed in the outer circumferential face of the inner shaft sleeve, the steel ball is movably arranged in the lock hole, a small semi-circle part of the steel ball can protrude into the quick-inserting connecting hole, a circle of annular lock groove is formed in the outer circumferential face of the quick-inserting connector, and the protruding part of the steel ball can be clamped into the annular lock groove to lock the pedal sleeve piece when the quick-detaching mandrel is inserted. The outer shaft sleeve is jacked and sleeved on the inner shaft sleeve through a spring; and a limiting convex ring for preventing the steel balls from radially moving and unlocking is formed in a sleeve hole of the outer shaft sleeve. The pedal assembly is simple in structure and reasonable in design, and the purpose that a user can conveniently assemble and disassemble the pedal by himself / herself can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle pedals, in particular to a pedal quick-disassembly and anti-loosening mechanism which can enable the pedals and a bicycle crank to be quickly disassembled and assembled. Background Art

[0002] In today's era of national fitness and green travel, cycling, with its proximity to nature and aerobic fitness, has become increasingly popular. With my country's expanding logistics and improved express delivery services, consumers have more shopping options, leading many to choose to purchase bicycles online. However, due to logistical constraints, online delivery cannot be completed. Consequently, bicycle companies often leave the pedals installed, leaving it to the customer to install.

[0003] Since the widespread popularity of online shopping and the introduction of medium and large sports equipment such as bicycles into online shopping, most consumers prefer to purchase online. Users need to install the pedals after receiving the goods. The bicycle pedals and cranks are connected by a core shaft. In order to make it easier for consumers to assemble and disassemble the pedal structure, it is necessary to avoid wasting too much time due to complicated and tedious installation and disassembly processes, damage to the crank threaded holes caused by installation errors, and safety hazards during riding due to improper installation. The invention of a pedal structure suitable for self-installation by users is an urgent need to meet the current trend of changing user purchasing methods. The solution currently provided by various pedal manufacturing companies is to split the axle head into two parts, namely the threaded quick-release buckle and the pedal axle, but this will cause the pedal smoothness to deteriorate to a certain extent, affecting the user experience. Therefore, there is room for further improvement in the existing pedal quick release. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a pedal quick-release anti-loosening mechanism with a simple structure, reasonable design and easy assembly in response to the above-mentioned existing technical status.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A pedal quick-release anti-loosening mechanism comprises a pedal kit consisting of a pedal body and a quick-release core shaft; it also comprises a quick-release kit mounted on a bicycle crank and capable of quick connection and quick release cooperation with the pedal kit; the quick-release kit consists of an inner sleeve, an outer sleeve, a steel ball and a spring; the inner sleeve is axially formed with a quick-plug connection hole, and one end of the quick-release core shaft is formed with a quick-plug connector for plugging and connecting with the quick-plug connection hole; a locking hole connected to the quick-plug connection hole is radially formed on the outer circumferential surface of the inner sleeve, the steel ball is movably arranged in the locking hole and can protrude into the quick-plug connection hole with a small semicircular part, and a circle of annular locking groove is formed on the outer circumferential surface of the quick-plug connector, and the protruding part of the steel ball can be stuck in the annular locking groove when the quick-release core shaft is plugged in to lock the pedal kit; the outer sleeve is pressed onto the inner sleeve by a spring, and a limiting convex ring is formed in the sleeve hole of the outer sleeve to prevent the steel ball from radially moving and unlocking.

[0007] To optimize the above technical solutions, the following measures are also taken:

[0008] The right end of the inner sleeve is provided with a threaded section with a relatively small diameter, and the threaded section is processed with an external thread for spirally mounting with a threaded hole on a bicycle crank.

[0009] The above-mentioned spring sleeve is arranged between the inner sleeve and the outer sleeve, the right end of the spring is in contact with the limiting convex ring of the outer sleeve, the left end of the spring is pressed with a retaining spring, and the left end of the inner sleeve is formed with a retaining spring groove for retaining the retaining spring.

[0010] The right end of the inner sleeve is formed with an annular positioning boss, which extends into the sleeve hole of the outer sleeve and cooperates with the right end surface of the limiting convex ring in positioning.

[0011] The above-mentioned quick-insert connection hole includes a reinforced hole section with a relatively small diameter extending into the threaded section, and a spline groove is machined in the reinforced hole section. The quick-insert connector includes a reinforced shaft section that can be inserted into the reinforced hole section, and spline teeth are formed on the outer peripheral surface of the reinforced shaft section for engaging with the spline groove.

[0012] A sealing ring groove is formed in the quick-plug connection hole, and a rubber pad is installed in the sealing ring groove to eliminate the movable gap between the quick-plug connector and the quick-plug connection hole.

[0013] Compared to the prior art, the pedal quick-release anti-loosening mechanism of the present invention includes a pedal kit and a quick-release kit. The pedal kit consists of a pedal body and a quick-release mandrel. The quick-release kit mainly consists of an inner sleeve, an outer sleeve, a steel ball, and a spring. The inner sleeve is formed with a quick-connect hole, and the quick-connect shaft is formed with a quick-connect connector. The quick-release kit is fixedly mounted on the crank. The pedal kit can be connected to the quick-connect hole of the quick-release kit via the quick-connect connector of the quick-release mandrel, achieving rapid installation with the bicycle crank. During disassembly, the pedal kit's quick-connect connector can be pulled out of the quick-connect hole of the quick-release kit by simply pushing the outer sleeve to the left, achieving rapid disassembly and separation of the pedal kit from the bicycle crank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is an exploded view of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the inner shaft sleeve of the utility model;

[0017] Figure 4 This is a schematic structural diagram of the outer shaft sleeve of the utility model;

[0018] Figure 5 This is a schematic diagram of the assembly of the utility model and a bicycle crank;

[0019] Figure 6 This is one of the three-dimensional structural diagrams of the present utility model;

[0020] Figure 7 This is the second schematic diagram of the three-dimensional structure of the present utility model. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0022] Figures 1 to 7 It is a structural diagram of the present utility model.

[0023] The accompanying drawings are marked as follows: pedal kit A, quick release kit B, crank C, pedal body 1, quick release spindle 2, quick plug connector 21, annular lock groove 21a, reinforced shaft section 211, inner sleeve 3, quick plug connecting hole 3a, reinforced hole section 3b, lock hole 3c, retaining ring groove 3d, sealing ring groove 3e, threaded section 31, positioning boss 32, outer sleeve 4, sleeve hole 4a, limiting protrusion 41, steel ball 5, spring 6, retaining ring 7, rubber pad 8.

[0024] like Figures 1 to 7As shown, the utility model discloses a pedal quick-release anti-loosening mechanism, comprising a pedal kit A and a quick-release kit B. The quick-release kit B is used to be fixedly mounted on a bicycle crank C. The pedal kit A can be quickly connected and disconnected from the bicycle crank C by cooperating with the quick-release kit B. The connection or disconnection of the pedal kit A and the quick-release kit B can be easily completed without the need for special tools.

[0025] like Figure 1 and Figure 2 As shown, the pedal assembly A consists of a pedal body 1 and a quick-release spindle 2 that is rotatably threaded through the pedal body 1. Unlike conventional spindles, the quick-release spindle 2 of the present invention has a quick-connect connector 21 formed on its right end for quick plug-in connection. The quick-connect connector 21 also has an arc-shaped, concave, annular locking groove 21a formed around its circumference for anti-loosening locking.

[0026] The quick-release kit B of the present invention is composed of an inner sleeve 3, an outer sleeve 4, a steel ball 5 and a spring 6. A quick-connection hole 3a is formed in the inner sleeve 3 so as to allow the quick-connection connector 21 to be inserted. Figure 3 As shown, the outer circumference of the inner sleeve 3 is radially formed with a lock hole 3c connected to the quick-connection hole 3a, and the steel ball 5 is movably arranged in the lock hole 3c and can partially protrude into the quick-connection hole 3a. Figure 1 As shown, when the quick-release connector 21 of the quick-release spindle 2 is inserted into the quick-release connection hole 3a, the protruding part of the steel ball 5 can be stuck in the annular lock groove 21a of the quick-release spindle 2 to lock the quick-release spindle 2 to prevent it from falling out, so that the quick-release spindle 2 cannot be pulled out, thereby achieving the purpose of locking the pedal kit A.

[0027] like Figure 4 As shown, the outer sleeve 4 of the present invention is formed with a sleeve hole 4a axially through it for fitting with the inner sleeve 3. A limiting protrusion 41 is formed in the sleeve hole 4a at the position corresponding to the steel ball. A small gap is left between the limiting protrusion 41 and the steel ball 5, so that the steel ball 5 cannot move radially out of the annular locking groove 21a to achieve the unlocking effect. Figure 1 As shown, spring 6 is sleeved on inner sleeve 3 and located in sleeve hole 4a of outer sleeve 4. The right end of spring 6 contacts the limiting protrusion 41 of outer sleeve 4, so that outer sleeve 4 is elastically pressed onto inner sleeve 3. A retaining spring groove 3d is formed at the left end of inner sleeve 3. Retaining spring 7 is fixed in retaining spring groove 3d and pressurized against the left end of spring 6. Retaining spring 7 prevents spring 6 from falling out of inner sleeve 3.

[0028] In the embodiment Figure 3As shown, the right end of the inner sleeve 3 of the present invention has a relatively small diameter threaded section 31, which is machined with external threads for screwing into the threaded hole on the bicycle crank C. The quick-connect hole 3a of the present invention includes a relatively small diameter reinforced hole section 3b extending into the threaded section 31. The reinforced hole section 3b is machined with a spline groove. The quick-connect connector 21 includes a reinforced shaft section 211 that can be inserted into the reinforced hole section 3b. The outer circumference of the reinforced shaft section 211 is formed with spline teeth for engaging with the spline groove. The spline groove and spline teeth cooperate to prevent the quick-release core shaft 2 from rotating relative to the inner sleeve 3. Compared to traditional quick-release structures, the spline can increase the contact surface, enhance the anti-loosening function of the pedal, and reduce the sense of frustration during riding.

[0029] In order to eliminate the movable gap between the quick-insert connector 21 and the quick-insert connection hole 3a, in the embodiment, a sealing ring groove 3e is formed in the quick-insert connection hole 3a, and a rubber pad 8 is installed in the sealing ring groove 3e.

[0030] In the embodiment, an annular positioning boss 32 is formed on the right end of the inner sleeve 3 , and the positioning boss 32 extends into the sleeve hole 4 a of the outer sleeve 4 and cooperates with the right end surface of the limiting protrusion 41 for positioning.

[0031] In the embodiment, six locking holes 3 c are machined on the outer circumference of the inner sleeve 3 of the present invention with equal arcs, and six steel balls 5 are installed accordingly.

[0032] like Figure 1 As shown, when disassembling the utility model, it is only necessary to push the outer sleeve 4 to the left so that the outer sleeve 4 compresses the spring 6 and moves to the left. When the limiting convex ring 41 moves away from the limit of the steel ball 5, the space for the radial movement of the steel ball 5 is opened, and the pedal kit A can be pulled out at this time.

[0033] The pedal quick-release anti-loosening mechanism of the utility model has a simple and reasonable structure and can be used with conventional cranks. After the quick-release kit is locked on the crank, the subsequent assembly of the pedal kit only requires pushing the quick-plug connector on the pedal kit into the quick-plug connection hole of the quick-release kit. When disassembling, it is only necessary to push the outer sleeve and then pull out the pedal kit. The assembly and disassembly are convenient, and structural damage caused by frequent installation and disassembly of the pedals can be avoided, which can achieve the purpose of allowing users to install and disassemble the pedals by themselves. At the same time, the quick-release kit and the quick-release core shaft engage with each other through the spline to achieve the purpose of preventing loosening.

[0034] The best embodiment of the present invention has been described, and various changes or modifications made by ordinary technicians in this field will not depart from the scope of the present invention.

Claims

1. A pedal quick-release anti-loosening mechanism, comprising a pedal kit (A) consisting of a pedal body (1) and a quick-release core shaft (2); characterized in that: It also includes a quick-release kit (B) mounted on a bicycle crank (C) and capable of quickly connecting and disconnecting with the pedal kit (A); the quick-release kit (B) is composed of an inner sleeve (3), an outer sleeve (4), a steel ball (5) and a spring (6); the inner sleeve (3) is axially formed with a quick-connection hole (3a), and one end of the quick-release core shaft (2) is formed with a quick-connection connector (21) for connecting with the quick-connection hole (3a); a lock hole (3c) connected to the quick-connection hole (3a) is radially formed on the outer peripheral surface of the inner sleeve (3), and the quick-connection hole (3a) is formed with a lock hole (3c) on the outer peripheral surface of the inner sleeve (3). The steel ball (5) is movably arranged in the lock hole (3c) and can partially protrude into the quick-connect connection hole (3a). An annular lock groove (21a) is formed on the outer peripheral surface of the quick-connect connector (21). The protruding portion of the steel ball (5) can be inserted into the annular lock groove (21a) to lock the pedal kit (A) when the quick-release core shaft (2) is plugged in. The outer sleeve (4) is pressed onto the inner sleeve (3) by a spring (6). A limiting convex ring (41) is formed in the sleeve hole (4a) of the outer sleeve (4) for preventing the steel ball (5) from radially moving and unlocking.

2. The pedal quick-release anti-loosening mechanism according to claim 1, characterized in that: The right end of the inner sleeve (3) has a threaded section (31) with a relatively small diameter, and the threaded section (31) is processed with an external thread for spiral installation with a threaded hole on a bicycle crank (C).

3. The pedal quick-release anti-loosening mechanism according to claim 2, characterized in that: The spring (6) is sleeved between the inner sleeve (3) and the outer sleeve (4), the right end of the spring (6) is in contact with the limiting convex ring (41) of the outer sleeve (4), the left end of the spring (6) is pressed by a retaining spring (7), and the left end of the inner sleeve (3) is formed with a retaining spring groove (3d) for retaining the retaining spring (7).

4. The pedal quick-release anti-loosening mechanism according to claim 3, characterized in that: The right end of the inner sleeve (3) is formed with an annular positioning boss (32), and the positioning boss (32) extends into the sleeve hole (4a) of the outer sleeve (4) and cooperates with the right end surface of the limiting convex ring (41) for positioning.

5. The pedal quick-release anti-loosening mechanism according to claim 4, characterized in that: The quick-connect hole (3a) includes a reinforced hole section (3b) with a relatively small diameter extending into the threaded section (31), a spline groove being machined in the reinforced hole section (3b), and the quick-connect connector (21) includes a reinforced shaft section (211) that can be inserted into the reinforced hole section (3b), and spline teeth for engaging with the spline groove are formed on the outer peripheral surface of the reinforced shaft section (211).

6. The pedal quick-release anti-loosening mechanism according to claim 5, characterized in that: A sealing ring groove (3e) is formed in the quick-insert connection hole (3a), and a rubber pad (8) is installed in the sealing ring groove (3e) for eliminating the movable gap between the quick-insert connector (21) and the quick-insert connection hole (3a).

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