Up-down combined type chain cover easy to disassemble and assemble

Abstract

The utility model discloses an upper and lower combined chain cover easy to disassemble and assemble, which comprises an upper chain cover and a lower chain cover, the front end or the rear end of the upper chain cover is fixedly connected with the lower chain cover through a buckle, the other end of the upper chain cover is fixedly connected with the lower chain cover through a bolt, and rear positioning tables are fixed at the bottom of the outer side of the rear end of the upper chain cover and the top of the outer side of the rear end of the lower chain cover. The upper chain cover and the lower chain cover are adopted to form the chain cover, and the chain cover is positioned and fixed through the positioning plate and the rear positioning table, so that the upper chain cover and the lower chain cover can be easily disassembled and assembled, the pedal assembly does not need to be disassembled during disassembly, and maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to an easy-to-disassemble upper and lower combined chain cover. BACKGROUND

[0002] The chain cover is an important component of the bicycle, and the chain cover is arranged to protect the bicycle chain and prolong the service life of the chain. Meanwhile, the design of the chain cover can prevent clothes and other items from being caught by the chain during riding.

[0003] At present, the conventional chain cover is composed of two inner and outer parts and is fixed together by bolts, and the inner chain cover cannot be disassembled alone. When disassembled, the pedal assembly needs to be disassembled together, so when the chain is stuck between the chain wheel and the inner chain cover, it is difficult to directly take out the chain. Therefore, such a structure design is not reasonable, and a large number of bolts need to be operated when disassembling the chain cover, which greatly affects the disassembly efficiency of the chain cover. SUMMARY

[0004] In view of the above problems, the utility model provides an easy-to-disassemble upper and lower combined chain cover, which effectively solves the problems pointed out in the background art.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] An easy-to-disassemble upper and lower combined chain cover, comprising an upper chain cover and a lower chain cover, the front end or the rear end of the upper chain cover is fixedly connected with the lower chain cover through buckles, the other end is fixedly connected with the lower chain cover through bolts, and the outer bottom of the rear end of the upper chain cover and the outer top of the rear end of the lower chain cover are fixed with a rear positioning table.

[0007] As a preferred, the inner side of the upper chain cover and the lower chain cover is fixed with a positioning piece, and the positioning piece is used for mutual positioning between the upper chain cover and the lower chain cover.

[0008] As a preferred, the inner side of the upper chain cover and the lower chain cover is fixed with a pair of inwardly protruding positioning plates, and the positioning plates are used for positioning between the chain cover and the frame.

[0009] As a preferred, the front end bottom of the upper chain cover is provided with a first upper through hole penetrating the upper chain cover, the first upper through hole is semicircular, the front end top of the lower chain cover is provided with a first lower through hole penetrating the lower chain cover, the first lower through hole is semicircular, and the first upper through hole on the outer side of the upper chain cover and the first lower through hole on the outer side of the lower chain cover are provided with a positioning ring.

[0010] As a preferred, the positioning ring is provided with a positioning groove, and the edge of the first upper through hole and the first lower through hole is fixed with a positioning boss matched with the positioning groove.

[0011] The positioning ring can be firmly clamped between the upper chain cover and the lower chain cover through the positioning groove and the positioning boss, and the positioning ring can keep the outer side of the upper chain cover and the lower chain cover flat.

[0012] As preferred, a second upper through hole penetrating the outer side of the upper chain cover is arranged at the middle bottom of the outer side of the upper chain cover, a second lower through hole penetrating the outer side of the lower chain cover is arranged at the middle top of the outer side of the lower chain cover, the second upper through hole is matched with the second lower through hole, and a positioning ring is arranged in the second upper through hole and the second lower through hole.

[0013] As preferred, a positioning boss is fixed at the edge of the second upper through hole and the second lower through hole, and a positioning groove matched with the positioning boss is arranged on the positioning ring.

[0014] The positioning ring can be firmly clamped between the upper chain cover and the lower chain cover through the positioning groove and the positioning boss, and the positioning ring can keep the outer side of the upper chain cover and the lower chain cover flat.

[0015] As preferred, a gap is arranged at the connecting position of the upper chain cover and the lower chain cover at the rear end of the positioning ring.

[0016] As preferred, a plurality of blow-off holes are arranged at the bottom of the lower chain cover.

[0017] The sewage and garbage falling into the lower chain cover can be discharged through the blow-off holes, so that the chain is prevented from being damaged.

[0018] The upper chain cover and the lower chain cover are combined to form a chain cover, and the positioning plate and the rear positioning table are used to position and fix the chain cover, so that the upper chain cover and the lower chain cover can be easily disassembled, and the pedal assembly does not need to be disassembled during disassembly, thereby facilitating maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an outer side structure schematic view of the utility model;

[0020] Figure 2 It is an inner side structure schematic view of the utility model;

[0021] Figure 3 It is a sectional structure schematic view of the utility model;

[0022] Figure 4 It is a structure schematic view of the rear flower drum. DETAILED DESCRIPTION

[0023] It should be noted that the following detailed description is illustrative only, and is intended to provide further description in connection with the application. 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 application belongs.

[0024] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0025] In addition, in the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more, unless otherwise explicitly limited.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature is on, above and on of second feature includes that first feature is directly above and obliquely above of second feature, or only indicates that horizontal height of first feature is higher than second feature.First feature is below, under and under of second feature includes that first feature is directly below and obliquely below of second feature, or only indicates that horizontal height of first feature is less than second feature.

[0029] The utility model will be further described in detail below by specific embodiment in conjunction with the drawings.

[0030] As Figures 1-3 The utility model discloses an easy dismounting upper and lower combined chain cover, including upper chain cover 1 and lower chain cover 2, the front end or rear end of upper chain cover 1 is fixedly connected with lower chain cover 2 through buckle 3, and the other end is fixedly connected with lower chain cover 2 through bolt 4, and the outside bottom of the rear end of upper chain cover 1 and the outside top of the rear end of lower chain cover 2 are fixed with rear positioning platform 5, and rear positioning platform 5 is matched with the positioning ring groove 21 of rear hub drum, as Figure 4 It is the structural diagram of rear hub drum, when installing, rear positioning platform 5 is clamped in the positioning ring groove 21 of rear hub drum, and the positioning and fixing of the rear end of chain cover are realized.

[0031] The inside of upper chain cover 1 and lower chain cover 2 is fixed with positioning sheet 6, and the inside here refers to the side towards the frame when installing to the frame, and the positioning sheet 6 is used for the mutual positioning between upper chain cover 1 and lower chain cover 2.

[0032] The inside of upper chain cover 1 and lower chain cover 2 is fixed with a pair of positioning plates 7 that protrude inwards, and the inside here refers to the side towards the frame when installing to the frame, and the positioning plate 7 is used for the positioning between chain cover and frame, and the positioning between chain cover and frame is realized through positioning plate 7, and three-point positioning is formed with rear positioning platform 5, so that chain cover can be stably fixed on the frame.

[0033] The front end bottom of upper chain cover 1 is provided with first upper through hole 8 that penetrates the inside and outside of upper chain cover 1, and the first upper through hole 8 is semicircular, and the front end top of lower chain cover 2 is provided with first lower through hole 9 that penetrates the inside and outside of lower chain cover 2, and the first lower through hole 9 is semicircular, and the first upper through hole 8 of the outside of upper chain cover 1 and the first lower through hole 9 of the outside of lower chain cover 2 are provided with positioning ring 10 in.

[0034] The positioning ring 10 is provided with positioning groove 11, and the edge of first upper through hole 8 and first lower through hole 9 is fixed with positioning boss 12 that is matched with positioning groove 11.

[0035] The positioning ring 10 can be firmly clamped between the upper chain cover 1 and the lower chain cover 2 through the positioning groove 11 and the positioning boss 12, and will not be loose when the upper chain cover 1 and the lower chain cover 2 are clamped, and the design of the positioning ring 10 can keep the outer side of the upper chain cover 1 and the lower chain cover 2 flat.

[0036] The middle bottom of the outer side of the upper chain cover 1 is provided with a second upper through hole 13 penetrating through the outer side of the upper chain cover 1, and the middle top of the outer side of the lower chain cover 2 is provided with a second lower through hole 14 penetrating through the outer side of the lower chain cover 2, the second upper through hole 13 is matched with the second lower through hole 14, and the second upper through hole 13 and the second lower through hole 14 are provided with a positioning ring 15.

[0037] The edge of the second upper through hole 13 and the second lower through hole 14 is fixed with a positioning boss 12, and the positioning ring 15 is provided with a positioning groove 11 matched with the positioning boss 12.

[0038] The positioning ring 15 can be firmly clamped between the upper chain cover 1 and the lower chain cover 2 through the positioning groove 11 and the positioning boss 12, and will not be loose when the upper chain cover 1 and the lower chain cover 2 are clamped, and the design of the positioning ring 15 can keep the outer side of the upper chain cover 1 and the lower chain cover 2 flat.

[0039] The rear end of the positioning ring 15 is provided with a gap 16 at the connection of the upper chain cover 1 and the lower chain cover 2, and the design of the gap 16 enables the positioning ring 15 to be clamped between the upper chain cover 1 and the lower chain cover 2 when the upper chain cover 1 and the lower chain cover 2 are buckled.

[0040] The bottom of the lower chain cover 2 is provided with a plurality of blow-off holes 17, through which sewage, garbage and the like falling into the lower chain cover 2 can be discharged, so as to avoid damaging the chain.

[0041] The inner side mentioned in the patent refers to the side of the chain cover towards the vehicle frame when the chain cover is installed on the vehicle frame.

[0042] When the upper chain cover 1 and the lower chain cover 2 are assembled, the specific method is as follows:

[0043] 1, the positioning ring 10 and the positioning ring 15 are respectively placed in the first lower through hole 9 and the second lower through hole 14 of the lower chain cover 2;

[0044] 2, one end of the upper chain cover 1 and the lower chain cover 2 is fixed through the buckle 3, then the rear positioning table 5 is clamped in the positioning ring groove 21 of the rear hub, and the other end is gradually clamped until the upper chain cover 1 and the lower chain cover 2 are completely buckled, at this time, the two positioning plates 7 are also clamped on the upper and lower sides of the vehicle frame rod;

[0045] 3, the other end of the upper chain cover 1 and the lower chain cover 2 is fastened with a bolt 4, so that the installation of the chain cover is completed.

[0046] The upper chain cover 1 and the lower chain cover 2 can be quickly disassembled by only loosening the bolt 4.

[0047] Finally, it should be noted that the above is only a specific embodiment of the present application. Obviously, the present application is not limited to the above embodiments, but can have many variations. All variations that can be directly derived or inferred from the disclosed content by those of ordinary skill in the art should be considered within the scope of the present application.

Claims

1. A detachable upper and lower combined chain cover characterized in that, The application relates to a chain cover, which comprises an upper chain cover (1) and a lower chain cover (2), the front end or the rear end of the upper chain cover (1) is fixedly connected with the lower chain cover (2) through buckles (3), the other end is fixedly connected with the lower chain cover (2) through bolts (4), and a rear positioning platform (5) is fixed to the outer bottom of the rear end of the upper chain cover (1) and the outer top of the rear end of the lower chain cover (2).

2. The upper and lower combined chain cover according to claim 1, wherein Positioning plates (6) are fixed to the inner sides of the upper chain cover (1) and the lower chain cover (2), and the positioning plates (6) are used for mutual positioning between the upper chain cover (1) and the lower chain cover (2).

3. The upper and lower combination chain cover of claim 1, wherein, A pair of positioning plates (7) are fixed to the inner sides of the upper chain cover (1) and the lower chain cover (2) and protrude inward, and the positioning plates (7) are used for positioning between the chain cover and a vehicle frame.

4. The upper and lower combination chain cover of claim 1, wherein, A first upper through hole (8) is formed in the front end bottom of the upper chain cover (1) and penetrates the upper chain cover (1) from the inside to the outside, the first upper through hole (8) is semicircular, a first lower through hole (9) is formed in the front end top of the lower chain cover (2) and penetrates the lower chain cover (2) from the inside to the outside, the first lower through hole (9) is semicircular, and positioning rings (10) are arranged in the first upper through hole (8) on the outer side of the upper chain cover (1) and the first lower through hole (9) on the outer side of the lower chain cover (2).

5. The upper and lower combination chain cover of claim 4, wherein, Positioning grooves (11) are formed in the positioning rings (10), and positioning bosses (12) are fixed to the edges of the first upper through hole (8) and the first lower through hole (9) and matched with the positioning grooves (11).

6. The upper and lower combination chain cover of claim 1, wherein, A second upper through hole (13) is formed in the middle bottom of the outer side of the upper chain cover (1) and penetrates the outer side of the upper chain cover (1), a second lower through hole (14) is formed in the middle top of the outer side of the lower chain cover (2) and penetrates the outer side of the lower chain cover (2), the second upper through hole (13) is matched with the second lower through hole (14), and positioning rings (15) are arranged in the second upper through hole (13) and the second lower through hole (14).

7. The upper and lower combination chain cover of claim 6, wherein, Positioning bosses (12) are fixed to the edges of the second upper through hole (13) and the second lower through hole (14), and positioning grooves (11) are formed in the positioning rings (15) and matched with the positioning bosses (12).

8. The upper and lower combination chain cover of claim 6, wherein, A gap (16) is formed in the rear end of the positioning ring (15) at the connection between the upper chain cover (1) and the lower chain cover (2).

9. The upper and lower combination chain cover of claim 1, wherein, A plurality of blowholes (17) are formed in the bottom of the lower chain cover (2).

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