Internal variable-speed hub convenient to disassemble

Abstract

The utility model relates to the technical field of inner variable-speed hubs, in particular to an inner variable-speed hub convenient to disassemble, which comprises a hub shell, a middle shaft is arranged in the hub shell, a tower footing is arranged at the front end of the hub shell and positioned on the outer wall of the middle shaft, and a first connecting component is arranged on the left side surface of the tower footing. By arranging the first connecting assembly and the second connecting assembly on the inner speed change hub convenient to disassemble, when the tower footing needs to be disassembled, the fixing sleeve is connected to the connecting base in a sleeving mode, and when the fixing block moves into the fixing sleeve and the fixing block moves to the inner side of the limiting block, the fixing sleeve is connected to the connecting base in a sleeving mode. The limiting blocks are driven to reset under the acting force of the limiting springs, so that the fixing blocks can be limited, the auxiliary rods can be fixed to the tower footing, the tower footing can be driven to move outwards through the auxiliary rods, the tower footing is more labor-saving to disassemble and more convenient to replace, and the whole device is simple in structure, convenient to operate and higher in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of internal variable speed hub, concretely is an internal variable speed hub convenient to disassemble. BACKGROUND

[0002] The hub, commonly known as "hub barrel", is the barrel connected with the spoke outside the shaft, and is usually called shaft skin. According to the different arrangement ways of the number of strips, there are generally 3 and 5 coding methods, the hub has iron hub and aluminum hub, the hub system of the bicycle includes shaft, bearing, hub and the like, the hub has iron hub and aluminum hub, the iron hub is the hub of the bicycle ridden in the general home, and the aluminum hub is generally a relatively high-grade hub, which is used as the hub of the mountain bike, performance car, road car and the like. The existing internal variable speed hub is inconvenient to disassemble, and it is relatively inconvenient to replace the tower foundation.

[0003] Therefore, an internal variable speed hub convenient to disassemble is needed to improve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of internal variable speed hub convenient to disassemble, to solve the problem raised in above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of internal variable speed hub convenient to disassemble, including hub shell, the inside of the hub shell is provided with middle shaft, the front end of the hub shell and the outer wall of middle shaft are provided with tower foundation, the left side of the tower foundation is provided with first connecting assembly, the right side of the tower foundation is provided with second connecting assembly;

[0007] The first connecting assembly includes connecting seat, the left side of the connecting seat is provided with connecting rod, the left end of the connecting rod is provided with fixed block, the left side of the connecting seat is provided with fixed sleeve, the upper side of the right side of the fixed sleeve is provided with first fixed spring, the lower side of the right side of the fixed sleeve is provided with second fixed spring, the inside of the fixed sleeve is symmetrically provided with limit slot on upper and lower sides, the limit slot is slidably provided with limit rod in the inside, the outer end of the limit rod is provided with pull knob through fixed sleeve, the inner end of the limit rod is provided with limit block, the outer wall of the limit rod is sleeved with limit spring, the left end of the fixed sleeve is provided with auxiliary rod.

[0008] As a preferred scheme of the utility model, the first connecting assembly and the second connecting assembly are the same structure.

[0009] As a preferred scheme of the utility model, the inner end of the connecting seat is fixedly connected with the side surface of the tower foundation.

[0010] As a preferred scheme of the utility model, the fixed block is provided in "round table" structure.

[0011] As the preferred scheme of the utility model, the fixed block is matched with the fixed sleeve.

[0012] As the preferred scheme of the utility model, the limiting blocks are all provided with a straight-angled trapezoidal structure.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In the utility model, when the tower base needs to be disassembled, the fixed sleeve is sleeved on the connecting seat, when the fixed block moves to the inside of the fixed sleeve, when the fixed block moves to the inside of the limiting block, the limiting block is reset under the action force of the limiting spring, thereby the fixed block can be limited, the auxiliary rod can be fixed on the tower base, the tower base can be moved outward by the auxiliary rod, the tower base is more labor-saving when disassembling and more convenient when replacing, and the overall device is simple in structure, convenient to operate and higher in practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall front view of the utility model;

[0016] Fig. 2 It is the first component structure explosion drawing of the utility model;

[0017] Fig. 3 It is the first component internal structure drawing of the utility model.

[0018] In the drawing: 1, hub shell; 2, middle shaft; 3, tower base; 4, first connecting assembly; 5, second connecting assembly; 401, connecting seat; 402, connecting rod; 403, fixed block; 404, fixed sleeve; 405, first fixed spring; 406, second fixed spring; 407, limiting groove; 408, limiting rod; 409, pulling knob; 410, limiting block; 411, limiting spring; 412, auxiliary rod. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings, several embodiments of the utility model are given, but, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, the terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0023] Embodiment, please refer to Figs. 1-3 The utility model provides a technical scheme:

[0024] A convenient to disassemble's internal gear change hub, including hub shell 1, the inside of hub shell 1 is provided with middle shaft 2, and the front end of hub shell 1 and the outer wall of middle shaft 2 are provided with tower base 3, the left side of tower base 3 is provided with first connecting assembly 4, and the right side of tower base 3 is provided with second connecting assembly 5.

[0025] In this embodiment, please refer to Fig. 2 And 3 The first connecting assembly 4 includes connecting seat 401, the left side of connecting seat 401 is provided with connecting rod 402, the left end of connecting rod 402 is provided with fixed block 403, the left side of connecting seat 401 is provided with fixed sleeve 404, the upper side of the right side of fixed sleeve 404 is provided with first fixed spring 405, the lower side of the right side of fixed sleeve 404 is provided with second fixed spring 406, the upper and lower sides inside fixed sleeve 404 are symmetrically provided with limiting groove 407, limiting rod 408 is slidably arranged in limiting groove 407, the outer end of limiting rod 408 is provided with pull knob 409 through fixed sleeve 404, the inner end of limiting rod 408 is provided with limiting block 410, limiting spring 411 is sleeved on the outer wall of limiting rod 408, and the left end of fixed sleeve 404 is provided with auxiliary rod 412.

[0026] The first connecting assembly 4 and the second connecting assembly 5 are the same in structure, the inner end of the connecting seat 401 is fixedly connected with the side surface of the tower base 3, the fixed block 403 is provided in a circular truncated cone structure, the fixed block 403 is matched with the fixed sleeve 404, so that the fixed block 403 can enter the inside of the fixed sleeve 404, the cross sections of the limiting blocks 410 are provided in a right trapezoidal structure, the first connecting assembly 4 and the second connecting assembly 5 are arranged on the inside variable speed hub convenient to disassemble, when the tower base 3 needs to be disassembled, the fixed sleeve 404 is sleeved on the connecting seat 401, when the fixed block 403 moves to the inside of the fixed sleeve 404, when the fixed block 403 moves to the inside of the limiting block 410, the limiting block 410 is reset under the action force of the limiting spring 411, so that the fixed block 403 can be limited, the auxiliary rod 412 can be fixed on the tower base 3, the tower base 3 can be moved outwardly through the auxiliary rod 412, the tower base 3 is more labor-saving when disassembled and more convenient when replaced, and the overall device is simple in structure, convenient to operate and higher in practicality.

[0027] The working process of the utility model: when the inside variable speed hub convenient to disassemble is used, when the tower base 3 needs to be disassembled, the fixed sleeve 404 is sleeved on the connecting seat 401, when the fixed block 403 moves to the inside of the fixed sleeve 404, when the fixed block 403 moves to the inside of the limiting block 410, the limiting block 410 is reset under the action force of the limiting spring 411, so that the fixed block 403 can be limited, the auxiliary rod 412 can be fixed on the tower base 3, the tower base 3 can be moved outwardly through the auxiliary rod 412, the tower base 3 is more labor-saving when disassembled and more convenient when replaced.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An internal gear hub that is easy to disassemble, comprising a hub shell (1), characterized in that: A central axis (2) is provided inside the hub shell (1), a tower base (3) is provided at the front end of the hub shell (1) and on the outer wall of the central axis (2), a first connecting component (4) is provided on the left side of the tower base (3), and a second connecting component (5) is provided on the right side of the tower base (3); The first connecting assembly (4) comprises a connecting seat (401), a connecting rod (402) is provided on the left side of the connecting seat (401), a fixing block (403) is provided at the left end of the connecting rod (402), a fixing sleeve (404) is provided on the left side of the connecting seat (401), a first fixing spring (405) is provided on the upper side of the right side of the fixing sleeve (404), a second fixing spring (406) is provided on the lower side of the right side of the fixing sleeve (404), and the fixing Limiting grooves (407) are symmetrically provided on the upper and lower sides of the interior of the sleeve (404); a limiting rod (408) is slidably provided inside the limiting groove (407); the outer end of the limiting rod (408) passes through the fixed sleeve (404) and is provided with a pulling button (409); a limiting block (410) is provided at the inner end of the limiting rod (408); a limiting spring (411) is sleeved on the outer wall of the limiting rod (408); and an auxiliary rod (412) is provided at the left end of the fixed sleeve (404).

2. The internal gear hub that is easy to disassemble according to claim 1, characterized in that: The first connecting component (4) and the second connecting component (5) have the same structure.

3. The easily disassembled internal gear hub according to claim 1, characterized in that: The inner end of the connecting seat (401) is fixedly connected to the side surface of the tower base (3).

4. The easily disassembled internal gear hub according to claim 1, characterized in that: The fixing block (403) is arranged in a "truncated cone" structure.

5. The internal gear hub that is easy to disassemble according to claim 1, characterized in that: The fixing block (403) and the fixing sleeve (404) are adapted to be arranged.

6. The internal gear hub that is easy to disassemble according to claim 1, characterized in that: The cross-sections of the limit blocks (410) are all arranged in a "right-angled trapezoidal" structure.

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