Novel barrel shaft rod

Abstract

The utility model discloses a novel barrel shaft rod which is provided with a shaft rod body convenient to penetrate through a bicycle hub. Comprising an inner hexagonal groove formed in the inner surface of a shaft rod body, a shaft cap is in threaded connection with the left end of the outer surface of the shaft rod body, and a built-in groove is formed in the inner surface of the shaft cap; and the buckle is installed on the edge side of the inner surface of the built-in groove, the outer surface of the buckle is connected with a pushing piece in a clamped mode, and a limiting piece is installed on the right side of the outer surface of the pushing piece. The novel barrel shaft lever is provided with the shaft lever body which is conveniently assembled on a hub, the shaft cap which is stably assembled on a bicycle frame and is matched with the shaft lever body for installation and the inner hexagonal groove formed in the shaft lever body, stress of the shaft cap can be reduced, torque output is transferred to the shaft lever body structure, and therefore a traditional organization structure is changed; therefore, the problems that the hexagonal hole of the shaft cap is shallow and the torsion load is small are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylindrical shaft rods, in particular to a novel cylindrical shaft rod. Background Art

[0002] The barrel axle can be effectively used on the bicycle hub when in use, conveniently connecting the wheel and the frame, and playing the role of transmitting power. In the bicycle structure, it usually includes a crank arm, a pedal shaft and a barrel axle part, which improves the convenience of wheel assembly. However, the existing barrel axle still has some problems when in use;

[0003] In the prior art, the “cylindrical shaft structure” in the authorization publication (announcement) number: CN212290160U includes a first shaft body, a second shaft body and a fastener, wherein the first shaft body is in the shape of a long shaft; the second shaft body is in the shape of a long cylinder, which can be sleeved outside the first shaft body; the fastener can be connected to the end of the first shaft body to connect the first shaft body, the second shaft body and the fastener together;

[0004] During the operation of the above device, the barrel shaft structure is a split structure, which is formed by assembling the first shaft body, the second shaft body and the fastener together. When adjusting the length, it is only necessary to add a suitable gasket between the first shaft body, the second shaft body or the fastener. It has strong versatility and can meet the needs of various sizes. The barrel shaft structure of the utility model has flexible length adjustment, strong versatility, and is easy to process, which can improve processing efficiency and reduce production costs. The double-layer structure has high strength, and it has strong practicality and should be vigorously promoted. However, when in use, the force of the barrel shaft rod is connected to the shaft rod through the hexagonal structure set by the shaft cap, resulting in the force position being at the shaft sleeve position, affecting the output of torque, and when the torque is large, it is easy to cause damage to the shaft cap and the shaft rod. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of cylindrical shaft rod to solve the problem proposed in the above background technology that when in use, the force of the cylindrical shaft rod is connected to the shaft rod through the hexagonal structure provided on the shaft cap, resulting in the force position being at the shaft sleeve position, affecting the output of torque, and easily causing damage to the shaft cap and the shaft rod when the torque is large.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of barrel axle, provided with an axle body that is convenient for passing through a bicycle hub;

[0007] It comprises: a hexagonal groove, which is provided on the inner surface of the shaft body, and a shaft cap is threadedly connected to the left end of the outer surface of the shaft body, and a built-in groove is provided on the inner surface of the shaft cap;

[0008] A buckle is installed on the inner surface side of the built-in groove, and the outer surface of the buckle is snap-connected with a push piece, and a limiting piece is installed on the right side of the outer surface of the push piece, and a sliding block is installed on the outer surface of the limiting piece, and the limiting piece and the sliding block are limitedly slid on the inner surface of the built-in groove;

[0009] A compression spring is located on the lower surface of the slider and is nested between the slider and the shaft cap, and an ejection block is installed on the upper surface of the slider, and a nesting shaft is installed on the inner surface shaft of the ejection block;

[0010] The connecting rod is nested and connected to the inner surface of the built-in groove, and sliding grooves are opened on the left and right sides of the inner surface of the connecting rod, and a nesting shaft is connected to the inner surface of the sliding groove in a limited sliding manner, and a positioning shaft is installed at the middle end of the inner surface of the connecting rod, and the positioning shaft is installed on the inner surface of the shaft cap.

[0011] Preferably, the shaft body and the shaft cap form a threaded structure, and the shaft cap and the hexagonal groove are located on the same side of the shaft body, and the built-in groove is symmetrically arranged about the middle end of the inner surface of the shaft cap, and the buckle forms an integrated structure with the shaft cap through the built-in groove.

[0012] The above structure facilitates effective threaded assembly during use, and the components are arranged on the same side for stable assembly on a bicycle frame.

[0013] Preferably, the buckle and the push piece form a limiting snap-fit ​​structure, and the push piece is integrated into an integral structure through the limiting piece, the slider and the ejection block, and the slider forms a built-in limiting sliding structure through the limiting piece and the built-in groove, and the slider forms an elastic adjustment structure through the extrusion spring and the shaft cap.

[0014] Through the above structure, the slider is effectively controlled to form an elastically adjustable limit sliding setting during use, so that when the shaft cap is assembled, the subsequent limit block is controlled by the extrusion of the slider to control the shaft cap and the shaft body to form a limit engagement and positioning to prevent slipping.

[0015] Preferably, the ejector block forms a linkage rotation structure with the connecting rod through the nested shaft and the sliding groove, and the connecting rod forms a limited sliding structure with the nested shaft through the sliding groove, and the nested shaft is symmetrically arranged about the middle end of the inner surface of the connecting rod, and the connecting rod forms a positioning rotation structure through the positioning shaft and the shaft cap.

[0016] Through the above structure, effective linkage rotation is performed during use, thereby improving stability during control.

[0017] Preferably, an extrusion plate is connected to the other side of the inner surface of the connecting rod, and a limit block is installed on the lower surface of the extrusion plate, and the limit block is snap-connected to the limit groove that opens and closes evenly on the inner surface of the shaft body, and a serrated block is installed on the right side of the outer surface of the shaft cap.

[0018] The structure facilitates stable connection during use, effectively controls the stability of the device, and cooperates with the sawtooth block to improve the anti-slip property when assembled with the bicycle frame.

[0019] Preferably, the extrusion plate forms a rotating positioning sliding structure with the right side of the connecting rod through the nested shaft and the sliding groove, and the extrusion plate is embedded in the upper surface of the limit block, and one side of the outer surface of the extrusion plate is consistent with the major diameter of the internal thread of the shaft cap. At the same time, the limit block forms a limiting snap-fit ​​structure with the shaft body through the limiting groove, and the serrated block is set at equal angles with respect to the axis of the shaft cap.

[0020] Through the above structure, the connecting rod can be effectively coordinated with the rotation elastic rotation during use, and the limit block and the limit groove can be synchronously controlled to form a snap fit to prevent the shaft cap from falling off, and the assembled serrated block can be coordinated to improve the connection stability.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The new barrel axle is provided with an axle body that is easy to assemble on the hub and can be stably assembled on the bicycle frame. The axle cap installed in conjunction with the axle body and the use of the hexagonal groove provided on the axle body can reduce the stress on the axle cap and transfer the torque output to the axle body structure, thereby changing the traditional organizational structure, making the assembly easier and the stress more stable, thereby solving the problem of shallow hexagonal holes in the axle cap and small torque load;

[0023] 2. The new barrel shaft rod is provided with an elastically adjustable slider, which effectively cooperates with the use of the integrally installed limit piece and the ejection block, controls the nested shaft to cooperate with the sliding groove set in the connecting rod, controls the limit block assembled by the extrusion plate to be stably positioned in the limit groove set in the shaft rod body, prevents the shaft cap from slipping and is used for limit positioning, and cooperates with the use of the extrusion spring to prevent the limit block on the rotating shaft cap from detaching from the limit groove, and the shaft cap is stably connected to the bicycle frame through the serrated block, thereby reducing slippage simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the shaft rod body of the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the shaft rod body of the utility model in a half-section view;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the shaft cap in a half-section view of the utility model;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting rod of the utility model;

[0028] Figure 5It is a schematic diagram of the unlocked three-dimensional structure of the extruded plate of the utility model.

[0029] In the figure: 1. shaft body; 2. hexagonal groove; 3. shaft cap; 4. built-in groove; 5. buckle; 6. push piece; 7. limit piece; 8. slider; 9. extrusion spring; 10. ejector block; 11. nested shaft; 12. connecting rod; 13. sliding groove; 14. positioning shaft; 15. extrusion plate; 16. limit block; 17. limit groove; 18. serrated block. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 5 , the utility model provides a technical solution: a new type of tube shaft rod, provided with a shaft rod body 1 which is convenient for passing through a bicycle hub;

[0032] The invention comprises: a hexagonal groove 2, which is formed on the inner surface of the shaft body 1, and a shaft cap 3 is threadedly connected to the left end of the outer surface of the shaft body 1, and a built-in groove 4 is formed on the inner surface of the shaft cap 3;

[0033] The shaft body 1 and the shaft cap 3 form a threaded structure, and the shaft cap 3 and the hexagonal groove 2 are located on the same side of the shaft body 1, and the built-in groove 4 is symmetrically arranged about the middle end of the inner surface of the shaft cap 3, and the buckle 5 forms an integrated structure with the shaft cap 3 through the built-in groove 4.

[0034] When in use, the control shaft body 1 and the shaft cap 3 are threadedly assembled, and during assembly, the buckle 5 assembled with the built-in groove 4 opened in the control shaft cap 3 stably forms a limited engagement with the push piece 6 used for engagement and unlocking, so that the control shaft cap 3 and the shaft body 1 form a stable connection, and the hexagonal groove 2 opened in the shaft body 1 and the shaft cap 3 are arranged on the same side, so that the force point is on the hexagonal groove 2 opened in the shaft body 1, avoiding damage to the shaft cap 3;

[0035] The buckle 5 is installed on the inner surface side of the built-in groove 4, and the outer surface of the buckle 5 is snap-connected with a push piece 6, and a limit piece 7 is installed on the right side of the outer surface of the push piece 6, and a slider 8 is installed on the outer surface of the limit piece 7, and the limit piece 7 and the slider 8 are limited and slid on the inner surface of the built-in groove 4;

[0036] The extrusion spring 9 is located on the lower surface of the slider 8 and is nested between the slider 8 and the shaft cap 3. The upper surface of the slider 8 is equipped with an ejection block 10, and the inner surface of the ejection block 10 is equipped with a nesting shaft 11.

[0037] The connecting rod 12 is nested and connected to the inner surface of the built-in groove 4, and sliding grooves 13 are opened on the left and right sides of the inner surface of the connecting rod 12, and a nesting shaft 11 is connected to the inner surface of the sliding groove 13 in a limited sliding manner, and a positioning shaft 14 is installed at the middle end of the inner surface of the connecting rod 12, and the positioning shaft 14 is installed on the inner surface of the shaft cap 3.

[0038] The buckle 5 and the push piece 6 form a limiting snap-fit ​​structure, and the push piece 6 forms an integrated structure through the limiting piece 7, the slider 8 and the ejection block 10, and the slider 8 forms a built-in limiting sliding structure through the limiting piece 7 and the built-in groove 4, and the slider 8 forms an elastic adjustment structure through the extrusion spring 9 and the shaft cap 3.

[0039] The ejector block 10 forms a linkage rotation structure with the connecting rod 12 through the nested shaft 11 and the sliding groove 13, and the connecting rod 12 forms a limited sliding structure with the nested shaft 11 through the sliding groove 13, and the nested shaft 11 is symmetrically arranged about the middle end of the inner surface of the connecting rod 12, and at the same time, the connecting rod 12 forms a positioning rotation structure with the shaft cap 3 through the positioning shaft 14.

[0040] An extrusion plate 15 is connected to the other side of the inner surface of the connecting rod 12, and a limit block 16 is installed on the lower surface of the extrusion plate 15, and the limit block 16 is snap-connected to a limit groove 17 that is evenly opened and closed on the inner surface of the shaft body 1. At the same time, a serrated block 18 is installed on the right side of the outer surface of the shaft cap 3.

[0041] The extrusion plate 15 forms a rotating positioning sliding structure with the right side of the connecting rod 12 through the nested shaft 11 and the sliding groove 13, and the extrusion plate 15 is embedded in the upper surface of the limit block 16, and one side of the outer surface of the extrusion plate 15 is consistent with the major diameter of the internal thread of the shaft cap 3. At the same time, the limit block 16 forms a limiting snap-fit ​​structure with the shaft body 1 through the limiting groove 17, and the serrated block 18 is set at equal angles with respect to the axis of the shaft cap 3.

[0042] When the shaft cap 3 is in the position of the threaded shaft body 1, the push piece 6 on the control shaft cap 3 is disengaged from the limiting engagement of the buckle 5, so that the limiting piece 7 and the slider 8 installed on the push piece 6 will effectively elastically adjust the slider 8 to cooperate with the limiting piece 7 to form a limited sliding on the inner surface of the built-in groove 4 under the use of the extrusion spring 9 elastically connected to the lower side of the slider 8, so that the ejection block 10 installed on the control slider 8 drives the nested shaft 11 to move up synchronously, and the connecting rod 12 is controlled by the nested shaft 11 to cooperate with the positioning shaft 14 to form a positioning rotation, and the use of the sliding groove 13 opened at the connection between the nested shaft 11 and the connecting rod 12 is convenient for effective angle adjustment. Adjustment, so that on the right side of the connecting rod 12, the extrusion plate 15 is effectively controlled by the connecting rod 12 to form a vertical sliding on the inner surface of the shaft cap 3, and the limit block 16 installed on the extrusion plate 15 is driven to effectively form a limit engagement with the limit groove 17 opened on the shaft body 1 to prevent the shaft cap 3 from slipping during use, and when the hexagonal groove 2 controls the shaft body 1 to be connected with the locking handle, the serrated block 18 assembled on the control shaft cap 3 effectively provides anti-slip use and avoids damage in later use, and the elastically controlled slider 8 prevents the limit block 16 from detaching under the action of the rotational force, thereby improving the stability of the shaft body 1.

[0043] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel tube axle rod, provided with an axle rod body (1) which is convenient for passing through a bicycle hub; It is characterized in that include: An inner hexagonal groove (2) is formed on the inner surface of the shaft body (1), and a shaft cap (3) is threadedly connected to the left end of the outer surface of the shaft body (1), and a built-in groove (4) is formed on the inner surface of the shaft cap (3); A buckle (5) is mounted on the inner surface side of the built-in groove (4), and the outer surface of the buckle (5) is snap-connected with a push piece (6), and a limiting piece (7) is mounted on the right side of the outer surface of the push piece (6), and a sliding block (8) is mounted on the outer surface of the limiting piece (7), and the limiting piece (7) and the sliding block (8) are limitedly slid on the inner surface of the built-in groove (4); A compression spring (9) is located on the lower surface of the slider (8) and is nested between the slider (8) and the shaft cap (3); an ejection block (10) is installed on the upper surface of the slider (8), and a nesting shaft (11) is installed on the inner surface shaft of the ejection block (10); The connecting rod (12) is nested and connected to the inner surface of the built-in groove (4), and sliding grooves (13) are provided on the left and right sides of the inner surface of the connecting rod (12), and a nesting shaft (11) is limitedly slidably connected to the inner surface of the sliding groove (13), and a positioning shaft (14) is installed at the middle end of the inner surface of the connecting rod (12), and the positioning shaft (14) is installed on the inner surface of the shaft cap (3).

2. A new cylindrical shaft rod according to claim 1, characterized in that: The shaft body (1) and the shaft cap (3) form a threaded structure, and the shaft cap (3) and the hexagonal groove (2) are located on the same side of the shaft body (1), and the built-in groove (4) is symmetrically arranged about the middle end of the inner surface of the shaft cap (3), and the buckle (5) forms an integrated structure with the shaft cap (3) through the built-in groove (4).

3. A new cylindrical shaft rod according to claim 1, characterized in that: The buckle (5) and the push piece (6) form a limit locking structure, and the push piece (6) forms an integrated structure through the limit piece (7), the slider (8) and the ejection block (10), and the slider (8) forms a built-in limit sliding structure through the limit piece (7) and the built-in groove (4), and the slider (8) forms an elastic adjustment structure through the extrusion spring (9) and the shaft cap (3).

4. A new cylindrical shaft rod according to claim 1, characterized in that: The ejection block (10) forms a linkage rotation structure with the connecting rod (12) through the nested shaft (11) and the sliding groove (13), and the connecting rod (12) forms a limited sliding structure with the nested shaft (11) through the sliding groove (13), and the nested shaft (11) is symmetrically arranged with respect to the middle end of the inner surface of the connecting rod (12), and at the same time, the connecting rod (12) forms a positioning rotation structure with the shaft cap (3) through the positioning shaft (14).

5. A new cylindrical shaft rod according to claim 1, characterized in that: The other side of the inner surface of the connecting rod (12) is connected to an extrusion plate (15), and a limit block (16) is installed on the lower surface of the extrusion plate (15), and the limit block (16) is snap-fitted into a limit groove (17) that is evenly opened and closed on the inner surface of the shaft body (1), and a sawtooth block (18) is installed on the right side of the outer surface of the shaft cap (3).

6. A new cylindrical shaft rod according to claim 5, characterized in that: The extrusion plate (15) forms a rotating positioning sliding structure with the right side of the connecting rod (12) through the nested shaft (11) and the sliding groove (13), and the extrusion plate (15) is embedded and installed on the upper surface of the limit block (16), and one side of the outer surface of the extrusion plate (15) is consistent with the major diameter of the internal thread of the shaft cap (3), and the limit block (16) forms a limit locking structure with the shaft rod body (1) through the limit groove (17), and the sawtooth block (18) is arranged at equal angles with respect to the axis of the shaft cap (3).

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