Quick release handle fastening structure

Abstract

The utility model discloses a quick release handle fastening structure which comprises a mandrel, an elastic sheet and a trigger. An external thread is arranged on the peripheral side of one end of the mandrel, a geometric hole is concavely formed in the section of the other end of the mandrel, and at least one caulking groove is concavely formed in the hole wall of the geometric hole. And the elastic sheet is embedded in the embedding groove. And one end of the trigger handle is provided with a geometric column matched with the geometric hole. By means of the components, the trigger handle can be arranged in a sleeved mode when the mandrel is locked, the trigger handle can be arranged in a sleeved mode more firmly in cooperation with the elastic piece, the trigger handle is detached after the mandrel is locked, and the mandrel is prevented from being pulled accidentally.

Description

TECHNICAL FIELD

[0001] The utility model relates to a quick release structure for a bicycle, in particular to a quick release handle fastening structure. BACKGROUND

[0002] A quick release device is a fixing device capable of quick locking or loosening, such as Taiwan patent M521680, which is widely used in sports devices such as bicycles, scooters and exercise bikes.

[0003] A general quick release device uses an eccentric cam mechanism to achieve the effect of quick locking or unlocking of a handle. However, there are several shortcomings in its structure, such as:

[0004] 1. When tightening the handle, it is necessary to specially adjust the orientation of the handle to reduce the risk of loosening caused by external impact. However, the tightened position may not allow the handle to face the preset position, causing difficulty in operation for the user.

[0005] 2. The quick release device of the traditional eccentric cam mechanism has a complex overall structure, many components, and increased production cost and assembly time. SUMMARY

[0006] In view of the problems and shortcomings of the prior art, the main purpose of the utility model is to provide a quick release handle fastening structure that solves the shortcomings of the prior art through innovative design.

[0007] According to the above purpose of the utility model, the utility model discloses a quick release handle fastening structure, which comprises a shaft, a spring sheet and a handle. One end of the shaft is provided with an external thread on the outer periphery, and the other end is provided with a geometric hole in the cross section. At least one slot is recessed in the hole wall of the geometric hole. The spring sheet is embedded in the slot. The handle has a grip part and a sleeve part at both ends, and the sleeve part is provided with a geometric column matching the geometric hole, which is selectively inserted into the slot and pushes the spring sheet.

[0008] Through the above components, the handle can be sleeved when the shaft is locked, the handle is more tightly sleeved with the cooperation of the spring sheet, and the handle is separated after the shaft is locked to avoid accidental pulling of the shaft.

[0009] Further, the spring sheet has a U-shaped profile and an outwardly extending folded section at both free ends.

[0010] Further, the shaft has a shaft body and a shaft head at both ends, the external thread is provided on the outer periphery of the shaft body, and the geometric hole is recessed in the cross section of the shaft head.

[0011] Further, the sleeve part is recessed with a sleeve groove matching the outer contour of the shaft head, and one end of the geometric column is inserted into the bottom of the sleeve groove.

[0012] Further, the sleeve slot wall is concave with a ring groove, providing an O-ring accommodation.

[0013] Further, the mandrel outer peripheral side is sleeved with a washer.

[0014] Further, the washer preset end face is convex with a rough anti-skid surface. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is an appearance schematic view of the embodiment of the utility model;

[0016] Figure 2 is Figure 1 a partial component section view schematic view of the embodiment shown;

[0017] Figure 3 is Figure 1 a section view schematic view of the embodiment shown;

[0018] Figure 4 is Figure 1 an exploded view schematic view of the embodiment shown;

[0019] Figure 5 is Figure 4 a partial component exploded and section view schematic view (one) of the embodiment shown;

[0020] Figure 6 is Figure 4 a partial component exploded and section view schematic view (two) of the embodiment shown.

[0021] 10: mandrel

[0022] 11: shaft

[0023] 12: club head

[0024] 111: external thread

[0025] 121: geometric hole

[0026] 122: embedding groove

[0027] 20: elastic sheet

[0028] 21: folding section

[0029] 30: handle

[0030] 31: gripping portion

[0031] 32: sleeving portion

[0032] 33: sleeve slot

[0033] 331: ring groove

[0034] 34: geometric column

[0035] 40: reed

[0036] 41: non-slip surface

[0037] A: O-ring DETAILED DESCRIPTION

[0038] The following further describes the quick-release handle fastening structure of the present application with reference to the accompanying drawings. The various different objects in the embodiments are depicted in accordance with the proportions, sizes, deformation amounts or displacement amounts suitable for illustration, rather than in accordance with the proportions of actual components, and the same applies to the remaining embodiments. Moreover, the directional terms such as "front", "rear", "left", "right", "up", "down", "in" and "out" in the following embodiment descriptions are represented in accordance with the designated view direction and cannot be construed as limiting the present application.

[0039] Referring to Figures 1 to 6 the accompanying drawings, the quick-release handle fastening structure of the present application includes a spindle 10, at least one elastic sheet 20, a lever 30 and at least one reed 40.

[0040] The spindle 10 has a shaft body 11, a shaft head 12, an external thread 111, a geometric hole 121 and at least one embedding groove 122.

[0041] The shaft body 11 has a predetermined profile.

[0042] The shaft head 12 is arranged at one end of the shaft body 11.

[0043] The external thread 111 is arranged on the outer periphery of one end of the shaft body 11 and is away from the shaft head 12.

[0044] The geometric hole 121 is concavely arranged on the truncated surface of one end of the shaft head 12. In practice, the geometric hole 121 is a polygonal hole other than a circular hole.

[0045] The embedding groove 122 is concavely arranged on the hole wall of the geometric hole 121.

[0046] The elastic sheet 20 is embedded in the embedding groove 122 and partially changes the hole diameter of the geometric hole 121. The elastic sheet 20 has a U-shaped profile and an outwardly extending folded section 21 at both free ends.

[0047] The lever 30 has a gripping portion 31, a sleeving portion 32, a sleeving groove 33 and a geometric column 34.

[0048] The gripping portion 31 has a predetermined profile for providing a user to grip.

[0049] The sleeving portion 32 is arranged at one end of the gripping portion 31.

[0050] The sleeve slot 33 is recessed in the truncated surface of one end of the sleeve joint 32 and matches the outer contour of the club head 12.

[0051] The geometric column 34 is arranged at one end of the bottom of the sleeve slot 33 and has an outer contour matching the geometric hole 121.

[0052] The ring slot 331 is recessed in the wall of the sleeve slot 33 and provides a O-ring A accommodation.

[0053] The above-mentioned handle 40 is sleeved on the outer circumferential side of the shaft 11 and abuts against the club head 12 at one end. The handle 40 is provided with a rough anti-slip surface 41 at the preset end face.

[0054] The above is the introduction of the components and assembly method of the quick-release handle fastening structure of the preferred embodiment of the present application, and the operation characteristics of the embodiment of the present application are introduced as follows.

[0055] When the present application is used, first, the mandrel 10 is inserted into the shaft hole of the fork body of a bicycle through the shaft 11 (not shown in the figure), and the external thread 111 of the mandrel 10 is screwed with the fork body, so that the club head 12 of the mandrel 10 abuts against the fork body.

[0056] Then, the handle 30 is inserted into the geometric hole 121 of the mandrel 10 through the geometric column 34, at which time the user can apply force to twist the handle 30 to move the mandrel 10, so that the club head 12 of the mandrel 10 is pressed against the fork body. After adjustment, the handle 30 can be removed, and there is no need to worry about the direction of the handle 30.

[0057] The geometric column 34 needs to be inserted into the geometric hole 121, so when designed, appropriate gaps are reserved therebetween. The larger the gap, the smoother the insertion of the geometric column 34, but the rotation is not smooth. Conversely, the smaller the gap, the more difficult the insertion of the geometric column 34, but the rotation can directly react the force.

[0058] In order to overcome this defect, the present application is provided with the elastic sheet 20 in the geometric hole 121, so that a larger gap can be reserved to facilitate the insertion of the geometric column 34. After the geometric column 34 is inserted into the geometric hole 121, the gap between the geometric column 34 and the geometric hole 121 is eliminated in cooperation with the elastic sheet 20, so as to achieve the expected purpose of tight cooperation.

[0059] In addition, the O-ring A is arranged on the wall of the sleeve slot 33 of the handle 30, which can make the sleeve slot 33 and the matched club head 12 form a tight sleeve joint, so as to facilitate the stability of the user during the rotation of the handle 30.

[0060] The above description is only the preferred embodiment of the present application, which is intended to clarify the features of the present application, and is not intended to limit the scope of the embodiments of the present application. The equivalent changes made by the general technical personnel in the technical field according to the present application, and the changes well known by the technical personnel in the field, should still belong to the scope covered by the present application.

Claims

1. A quick-release handle fastening structure, characterized in that: include: A spindle, with an external thread provided on the outer periphery of one end and a geometric hole recessed in the cross section of the other end, wherein the geometric hole wall is recessed with at least one embedded groove; an elastic sheet embedded in the embedding groove; and A trigger has a gripping portion and a sleeve portion at both ends respectively. The sleeve portion is provided with a geometric column matching the geometric hole, which is selectively inserted into the embedding groove and pushes the elastic sheet.

2. The quick-release handle fastening structure according to claim 1, wherein: The elastic piece has a U-shaped profile and has a folded section extending outward at two free ends.

3. The quick-release handle fastening structure according to claim 1, wherein: The two ends of the spindle are respectively provided with a rod body and a rod head. The external thread is arranged on the outer peripheral side of the rod body, and the geometric hole is concavely arranged on the cross-section surface of the rod head.

4. The quick-release handle fastening structure according to claim 3, wherein: The sleeve portion is concavely provided with a sleeve groove matching the outer contour of the rod head, and one end of the geometric column is inserted into the bottom of the sleeve groove.

5. The quick-release handle fastening structure according to claim 4, wherein: The sleeve groove wall is concavely provided with a ring groove for accommodating an O-ring.

6. The quick-release handle fastening structure according to claim 1, wherein: A washer is sleeved on the outer circumference of the spindle.

7. The quick-release handle fastening structure according to claim 6, wherein: The washer is provided with a rough anti-slip surface on its preset end surface.

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