Detachable wrench mandrel

Abstract

The utility model relates to a detachable wrench mandrel which is provided with a quick release rod, a clamping piece and a quick release handle. The clamping piece can be rotationally arranged on the quick release rod together with the quick release rod and comprises a plurality of clamping convex parts; the quick release handle is provided with a clamping hole, and the clamping hole is provided with a plurality of clamping concave parts corresponding to the clamping convex parts; and the quick release handle is detachably arranged on the clamping piece through the clamping hole, so that the clamping convex part is clamped with the clamping concave part. According to the bicycle wheel quick release structure, the clamping convex part is arranged on the clamping piece, the clamping concave part is correspondingly arranged in the clamping hole of the quick release handle, and the quick release handle is detachably arranged on the clamping piece, so that the problems that parts of an existing bicycle wheel quick release structure are tedious, the structure is complex, and the derived part processing cost and the assembly difficulty are increased can be solved; the detachable wrench mandrel is simple in structure and capable of reducing machining cost and assembly complexity.

Description

Technical Field

[0001] The utility model relates to a bicycle component, in particular to a detachable spanner spindle which has a simplified structure and can reduce processing costs and assembly complexity. Background Art

[0002] Bicycle riders are more willing to replace various bicycle parts to experience the different feelings brought by different parts. Among them, some professional riders are particularly keen on replacing various bicycle wheels with different materials and different tread patterns to experience the road feel brought by different bicycle wheels responding to different terrains.

[0003] In order to facilitate riders to freely replace different bicycle wheels, a bicycle wheel quick release structure is available on the market, which includes a rod, a toothed member, a quick release handle meshing with the toothed member, and a limiter passing through the toothed member and the quick release handle to screw and fix the two to the rod; wherein, the existing bicycle wheel quick release structure is provided with a spring between the toothed member and the quick release handle.

[0004] When riding, the quick release handle can be moved axially toward the rod to prevent the quick release handle from protruding and hitting obstacles on the road; at this time, the spring is compressed, so that the quick release handle and the toothed member are not engaged, and the bicycle wheel cannot be removed. Once there is a need to replace the bicycle wheel, the spring can push the quick release handle away from the rod to engage the quick release handle with the toothed member; in this way, the quick release handle can be rotated, and the toothed member drives the rod to rotate, thereby removing and installing the bicycle wheel.

[0005] However, the existing bicycle wheel quick release structure has complicated parts and a complex structure, which not only increases the cost of parts processing, but also increases the difficulty of assembly. Therefore, it can be seen that the existing bicycle wheel quick release structure still has room for improvement and advancement. Utility Model Content

[0006] In order to solve the above problems of the existing bicycle wheel quick release structure, the utility model provides a detachable wrench spindle, which is provided with a quick release handle that can be detached and assembled to the engaging member. Due to the simplified structure, the purpose of reducing processing costs and assembly complexity can be achieved.

[0007] The utility model solves the technical problem of the detachable spanner spindle, which comprises:

[0008] A quick release rod, comprising a rod body, the rod body comprising two opposite ends;

[0009] a clamping member, which is fixedly mounted on one end of the quick release rod and can rotate together with the quick release rod, the clamping member is block-shaped and includes a body and a plurality of clamping protrusions; the plurality of clamping protrusions are radially protruded on the circumference of the body; and

[0010] A quick-release handle, comprising a sleeve portion and a clamping hole; the sleeve portion comprises two opposite ends, the clamping hole is provided at one end of the sleeve portion and has a plurality of clamping recesses radially corresponding to the plurality of clamping protrusions;

[0011] The quick-release handle is detachably mounted on the engaging member through the provided engaging hole, so that the engaging protrusion is engaged with the engaging concave portion.

[0012] A detachable spanner spindle, wherein the quick-release rod comprises a coupling section; the coupling section is located at one end of the rod body and is provided with a straight bearing surface; the engaging piece comprises a coupling hole; the body of the engaging piece comprises a first end and a second end which are opposite to each other; the coupling hole extends from the second end of the body toward the first end of the body, and the coupling hole is provided with a straight bearing surface corresponding to the bearing surface of the coupling section; the engaging piece is fixed to the coupling section of the quick-release rod by means of the provided coupling hole, and the bearing surface of the coupling hole abuts against the bearing surface of the coupling section.

[0013] The invention discloses a detachable spanner spindle, wherein the engaging hole passes through the body, and the engaging hole is respectively provided with two escape gaps on both sides of the abutment surface.

[0014] The detachable spanner spindle, wherein the engaging member comprises a cone portion, the cone portion is arranged at the first end of the body, and the outer diameter of the cone portion gradually expands toward the second end of the body.

[0015] The detachable spanner spindle, wherein the quick-release rod includes two hexagonal holes, and the two hexagonal holes are respectively arranged on the two end surfaces of the two ends of the rod body.

[0016] The detachable spanner spindle comprises a gasket, which is rotatably coupled to the coupling section of the quick-release rod and abuts against the engaging piece.

[0017] The detachable spanner spindle, wherein the engaging piece is integrally formed on the quick-release rod, and is provided with a gasket, which is rotatably combined with the quick-release rod and abuts against the engaging piece.

[0018] The detachable spanner spindle, wherein the quick-release rod is provided with an annular groove on the circumference of the rod body close to the engaging piece, a snap ring is combined with the annular groove, and the snap ring and the engaging piece are used to clamp the gasket together.

[0019] The detachable wrench spindle, wherein the gasket is in the shape of a ring and includes two side surfaces facing opposite directions, a set of holes penetrating the two side surfaces of the gasket, and a plurality of pressing grooves provided on one side surface of the gasket, and the gasket is provided with an annular groove for accommodating the latch ring on the side surface provided with the pressing grooves.

[0020] The detachable spanner spindle comprises six clamping protrusions, the clamping hole is provided with six clamping recesses corresponding to the six clamping protrusions of the clamping piece, and the contour of the clamping hole and the cross section of the clamping piece are in a plum blossom shape.

[0021] The technical means of the utility model can achieve improved effects in that: the utility model is provided with the engaging piece at one end of the rod body, and is provided with the quick release handle which can be detachably provided on the engaging piece, and the quick release handle can be engaged with the engaging protrusion of the engaging piece by the engaging concave portion of its engaging hole; when the rider using the utility model needs to replace the bicycle wheel, the rider can install the quick release handle on the engaging piece, rotate the quick release rod by operating the quick release handle, and remove or install the bicycle wheel from the frame. When riding, the quick release handle can be removed to avoid interference caused by the quick release handle during driving. The utility model has streamlined parts and a simple structure, which can not only reduce the cost of parts processing, but also make the product assembly simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the first preferred embodiment of the utility model.

[0023] Figure 2 It is a three-dimensional exploded schematic diagram of the first preferred embodiment of the utility model.

[0024] Figure 3 It is an enlarged three-dimensional exploded schematic diagram of the first preferred embodiment of the utility model.

[0025] Figure 4 It is a cross-sectional schematic diagram of the first preferred embodiment of the utility model.

[0026] Figure 5 It is a cross-sectional schematic diagram of the first preferred embodiment of the utility model along the AA cutting line.

[0027] Figure 6 It is a three-dimensional schematic diagram of the second preferred embodiment of the utility model.

[0028] Figure 7 It is a three-dimensional exploded schematic diagram of the second preferred embodiment of the utility model.

[0029] Figure 8 It is an enlarged cross-sectional schematic diagram of the second preferred embodiment of the utility model.

[0030] Fig. 9 It is a cross-sectional schematic diagram of the second preferred embodiment of the utility model along the BB cutting line. DETAILED DESCRIPTION

[0031] In order to understand the technical features and practical effects of the utility model in detail and to realize the utility model according to the content of the new model, the preferred embodiment shown in the figure is further described in detail as follows:

[0032] like Figures 1 to 4 As shown, the detachable spanner spindle of the first preferred embodiment of the utility model includes a quick-release rod 10 , a locking member 20 , a quick-release handle 30 and a gasket 40 .

[0033] like Figures 1 to 4 As shown, the quick release rod 10 includes a rod body 11, an external thread section 12, a coupling section 13 and two hexagonal holes 14; wherein, the rod body 11 includes two opposite ends, the external thread section 12 is located at one end of the rod body 11 and is provided with an external thread, the coupling section 13 is located at the other end of the rod body 11 and is provided with a straight bearing surface 131, and the two hexagonal holes 14 are respectively provided at the two end surfaces of the two ends of the rod body 11. When disassembling, a hexagonal wrench can be inserted into each hexagonal hole 14 to rotate the quick release rod 10.

[0034] like Figures 2 to 5 As shown, the engaging member 20 is block-shaped and includes a body 21, a cone 22, an engaging hole 23, and a plurality of engaging protrusions 24; wherein the body 21 includes a first end and a second end opposite to each other; the cone 22 is provided at the first end of the body 21, and the outer diameter of the cone 22 gradually expands toward the second end of the body 21; the engaging hole 23 extends from the second end of the body 21 toward the first end of the body 21 and penetrates the body 21, the engaging hole 23 is provided with a straight abutting surface 231 at a position corresponding to the abutting surface 131 of the coupling section 13, and two escape gaps 232 are respectively concavely provided on both sides of the abutting surface 231; the plurality of engaging protrusions 24 are radially protruded on the circumferential surface of the body 21. In a preferred embodiment of the utility model, the plurality of engaging protrusions 24 are six engaging protrusions 24, so that the cross section of the engaging member 20 presents a plum blossom shape similar to a plum blossom nut.

[0035] like Figures 2 to 5 As shown, the engaging member 20 is fixedly mounted on the coupling section 13 of the quick release lever 10 through the engaging hole 23, and the abutting surface 231 of the engaging hole 23 abuts against the abutting surface 131 of the coupling section 13, so that the engaging member 20 can be rotatably coupled with the quick release lever 10.

[0036] like Figures 2 to 5As shown, the quick-release handle 30 includes a sleeve portion 31, a clamping hole 32 and an operating portion 33; the sleeve portion 31 includes two opposite ends, the clamping hole 32 and the operating portion 33 are respectively arranged at the two ends of the sleeve portion 31, the clamping hole 32 is radially provided with a plurality of clamping recesses corresponding to the plurality of clamping protrusions 24 of the engaging member 20, and the operating portion 33 extends radially from the circumferential surface of the sleeve portion 31; in the first preferred embodiment of the utility model, the clamping hole 32 is provided with six clamping recesses corresponding to the six clamping protrusions 24 of the engaging member 20, so that the contour of the clamping hole 32 corresponds to the cross-section of the engaging member 20 and presents a plum blossom shape similar to a plum blossom nut.

[0037] like Figures 2 to 5 As shown, the quick release handle 30 is sleeved on the multiple clamping protrusions 24 of the clamping member 20 with the provided clamping hole 32, and the clamping concave portion of the clamping hole 32 is clamped with the clamping protrusions 24 of the clamping member 20; when removing the bicycle wheel, the quick release handle 30 can be rotated by holding the operating portion 33, so that the clamped clamping member 20 drives the quick release rod 10 to rotate together.

[0038] like Figures 2 to 4 As shown, the gasket 40 is in a ring shape and includes two side surfaces facing opposite directions, a set of holes 41 and a plurality of pressing grooves 42; wherein the set of holes 41 penetrates through the two side surfaces of the gasket 40; the plurality of pressing grooves 42 are arranged on one side surface of the gasket 40. The gasket 40 can be placed on the rod body 11 with the set of the set of holes 41, and the gasket 40 is rotatably combined with the combination section 13 of the quick release rod 10 and can be close to the said engaging member 20; when the utility model is assembled on a bicycle frame, the gasket 40 can press the bicycle frame with the plurality of pressing grooves 42 to increase the friction between the two, so as to prevent the utility model from being loosened from the bicycle frame without warning.

[0039] When the bicycle wheel needs to be replaced, the quick release handle 30 is installed on the engaging member 20, and the operating portion 33 of the quick release handle 30 is rotated to rotate the engaging member 20 to drive the quick release rod 10 to rotate together, so that the bicycle wheel can be quickly removed.

[0040] After the bicycle wheel is replaced, the quick release handle 30 can be removed from the engaging member 20 to prevent the quick release handle 30 from colliding with obstacles on the road and causing interference during driving.

[0041] Compared with the existing bicycle wheel quick-release structure, the utility model has streamlined parts and a simple structure, which can not only reduce the cost of parts processing, but also has the advantage of being simpler in product assembly.

[0042] The second preferred embodiment of the present invention is as follows Figures 6 to 9As shown, the second preferred embodiment is substantially similar to the first preferred embodiment, and the second preferred embodiment also includes a quick release rod 10, a locking member 20, a quick release handle 30 and a gasket 40. Figure 8 and Fig. 9 As shown, the locking hole 32 of the quick release handle 30 is also provided with the locking recess corresponding to the locking protrusion 24 of the locking member 20. When the quick release handle 30 is installed on the quick release rod 10, the quick release handle 30 is locked with the locking member 20, so that the quick release handle 30 can drive the quick release rod 10 to rotate through the locking member 20.

[0043] In the second preferred embodiment of the present invention, the engaging member 20 is provided with six engaging protrusions 24, and the engaging hole 32 is correspondingly provided with six engaging recesses, so that the contour of the engaging hole 32 and the cross section of the engaging member 20 are both in a plum blossom shape similar to a plum blossom nut.

[0044] like Figures 6 to 9 As shown, in the second preferred embodiment, the engaging member 20 is integrally formed on the quick release rod 10 and forms the same part as the quick release rod 10; wherein, the quick release rod 10 is further provided with an annular groove 15 on the circumferential surface of the rod body 11, and the annular groove 15 is close to the engaging member 20; the gasket 40 is further provided with an annular groove 43 on a side surface provided with the pressing pattern 42; when the gasket 40 is sleeved on the rod body 11, a locking ring 50 is accommodated in the annular groove 15 and the groove 43, and the locking ring 50 can clamp the gasket 40 together with the locking member 20.

[0045] In the first and second preferred embodiments of the present invention, the engaging member 20 is rotatably mounted on the quick release lever 10, so that when the quick release handle 30 is mounted on the engaging member 20, the rider can operate the quick release handle 30 to drive the engaging member 20 and the quick release lever 10 to rotate together, thereby providing a function of quickly disassembling and assembling the bicycle wheel.

[0046] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any person with ordinary knowledge in the technical field can make equivalent embodiments by partial changes or modifications to the technical content disclosed in the utility model without departing from the scope of the technical solution of the utility model, and they still fall within the scope of the technical solution of the utility model without departing from the technical solution of the utility model.

Claims

1. A detachable spanner spindle, characterized in that: include: A quick release rod, comprising a rod body, the rod body comprising two opposite ends; a clamping member, which is fixedly mounted on one end of the quick release rod and can rotate together with the quick release rod, the clamping member is block-shaped and includes a body and a plurality of clamping protrusions; the plurality of clamping protrusions are radially protruded on the circumference of the body; and A quick-release handle, comprising a sleeve portion and a clamping hole; the sleeve portion comprises two opposite ends, the clamping hole is provided at one end of the sleeve portion and has a plurality of clamping recesses radially corresponding to the plurality of clamping protrusions; The quick-release handle is detachably mounted on the engaging member through the provided engaging hole, so that the engaging protrusion is engaged with the engaging concave portion.

2. The detachable spanner spindle according to claim 1, characterized in that: The quick-release rod comprises a coupling section; the coupling section is located at one end of the rod body and is provided with a straight bearing surface; the engaging piece comprises a coupling hole; the body of the engaging piece comprises a first end and a second end which are opposite to each other; the coupling hole extends from the second end of the body toward the first end of the body, and the coupling hole is provided with a straight bearing surface corresponding to the bearing surface of the coupling section; the engaging piece is fixed to the coupling section of the quick-release rod by means of the provided coupling hole, and the bearing surface of the coupling hole abuts against the bearing surface of the coupling section.

3. The detachable spanner spindle according to claim 2, characterized in that: The engaging hole passes through the body, and two escape gaps are respectively concavely arranged on both sides of the abutting surface.

4. The detachable spanner spindle according to claim 2, characterized in that: The engaging member comprises a cone portion, which is arranged at the first end of the main body, and the outer diameter of the cone portion gradually expands toward the second end of the main body.

5. The detachable spanner spindle according to claim 4, characterized in that: The quick release rod comprises two inner hexagonal holes, and the two inner hexagonal holes are respectively arranged on the two end surfaces of the two ends of the rod body.

6. The detachable spanner spindle according to claim 2, characterized in that: A gasket is included, which is rotatably coupled to the coupling section of the quick-release rod and abuts against the engaging piece.

7. The detachable spanner spindle according to claim 1, characterized in that: The engaging piece is integrally formed on the quick release rod and is provided with a gasket, which is rotatably combined with the quick release rod and abuts against the engaging piece.

8. The detachable spanner spindle according to claim 7, characterized in that: The quick release rod is provided with an annular groove on the circumference of the rod body close to the engaging piece, and a clamping ring is combined with the annular groove, so that the clamping ring and the engaging piece clamp the gasket together.

9. The detachable spanner spindle according to claim 8, characterized in that: The gasket is in the shape of an annulus and includes two side surfaces facing opposite directions, a set of holes penetrating the two side surfaces of the gasket, and a plurality of pressing grooves arranged on one side of the gasket. The gasket is provided with an annular groove for accommodating the latch ring on the side provided with the pressing grooves.

10. The detachable spanner spindle according to any one of claims 1 to 9, characterized in that: The plurality of clamping protrusions are six clamping protrusions; the clamping hole is provided with six clamping recesses corresponding to the six clamping protrusions of the clamping piece, and the contour of the clamping hole and the cross section of the clamping piece are in a plum blossom shape.

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