CN218171904U

CN218171904U - Anti-drop structure for claw piece of hub ratchet set

Info

Publication number: CN218171904U
Application number: CN202222805317.5U
Authority: CN
Inventors: 张逸丰
Original assignee: Kunshan Mclary Drive Technology Co ltd
Current assignee: Kunshan Mclary Drive Technology Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2022-12-30
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a hub ratchet wheel group claw piece anti-drop structure, including installing the separation blade at ratchet casing tip, the tip surface of ratchet casing has seted up a plurality of wheel claw grooves, and all installs the ratchet claw in each wheel claw groove, the one end of ratchet claw stretches out to the outside in wheel claw groove, the internally mounted of ratchet casing has the iron lining, and the tip of iron lining stretches out to the outside of ratchet casing, the separation blade overlaps on the iron lining and laminates with the tip surface of ratchet casing mutually, and the separation blade covers the wheel claw groove and shelters from; the utility model discloses a design the anti-drop structure of compriseing separation blade, O shape circle and mobile spacing subassembly on current flower-drum ratchet group, can assemble and when dismantling at flower-drum ratchet group, play effectual anti-drop effect to the ratchet pawl, do not influence the subsequent normal use of ratchet pawl simultaneously, promote the dismouting efficiency of flower-drum ratchet group.

Description

Anti-drop structure for claw piece of hub ratchet set

Technical Field

The utility model belongs to the technical field of bicycle flower-drum ratchet group, concretely relates to flower-drum ratchet group claw piece anti-drop structure.

Background

The bicycle hub ratchet set is one of important parts of the bicycle and mainly comprises a ratchet casing, an aluminum sleeve, an iron bushing, a ratchet pawl, a spring plate and the like, wherein the ratchet pawl is arranged in a pawl groove on the end surface of the ratchet casing, but the ratchet pawl is easy to fall off from the pawl groove when the conventional hub ratchet set is assembled or disassembled for maintenance due to the fact that the conventional hub ratchet set is not provided with an anti-falling structure, so that an operator is hindered from assembling and disassembling the hub ratchet set, and therefore the anti-falling structure for the pawl plate of the hub ratchet set is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flower-drum ratchet group piece anti-drop structure to solve the problem that the ratchet claw drops easily when equipment or dismantlement of the current flower-drum ratchet group that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flower-drum ratchet group piece anti-drop structure, is including installing the separation blade at ratchet casing tip, a plurality of wheel claw grooves have been seted up to the end surface of ratchet casing, and every wheel claw inslot all installs the ratchet claw, the one end of ratchet claw stretches out to the outside in wheel claw groove, the internally mounted of ratchet casing has iron bush, and the tip of iron bush stretches out to the outside of ratchet casing, the separation blade cover is laminated mutually on iron bush and with the end surface of ratchet casing, and the separation blade covers the wheel claw groove and shelters from, the end surface of iron bush still overlaps and establishes and install O shape circle, and O shape circle and separation blade are laminated mutually, annular groove has been seted up on the end surface of iron bush, and annular groove is corresponding with O shape circle.

Preferably, the ratchet mechanism further comprises a movable limiting assembly arranged between the separation blade and the ratchet claw, the movable limiting assembly comprises a T-shaped limiting block, a T-shaped slot and an arc-shaped groove, the T-shaped slot is formed in the surface of the ratchet casing, the bottom end of the T-shaped slot is communicated with the claw groove, the arc-shaped groove is formed in the surface of the ratchet claw, the T-shaped limiting block is inserted into the T-shaped slot, and the bottom end of the T-shaped limiting block penetrates into the arc-shaped groove.

Preferably, mobile spacing subassembly still includes supplementary block structure, supplementary block structure sets up between T shape stopper and T shape slot, supplementary block structure includes flexible side channel, spring, flexible card pearl and circular draw-in groove, flexible side channel has been seted up to a side surface of T shape stopper, and has flexible card pearl through spring swing joint in the flexible side channel, circular draw-in groove has been seted up to one side inner wall of T shape slot, the tip of flexible card pearl runs through to in the circular draw-in groove, the one end and the flexible card pearl of spring are fixed mutually, the other end of spring is fixed on the inner wall of flexible side channel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a design the anti-drop structure of compriseing separation blade, O shape circle and mobile spacing subassembly on current flower-drum ratchet group, can assemble and when dismantling at flower-drum ratchet group, play effectual anti-drop effect to the ratchet pawl, do not influence the subsequent normal use of ratchet pawl simultaneously, promote the dismouting efficiency of flower-drum ratchet group.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an exploded perspective view of the present invention;

fig. 3 is a partially enlarged view of the movable position limiting assembly shown in fig. 2 according to the present invention;

fig. 4 is a sectional view of the movable position limiting assembly of the present invention;

fig. 5 is a partially enlarged view of the auxiliary engaging structure of fig. 4 according to the present invention;

in the figure: 1. a baffle plate; 2. an O-shaped ring; 3. a ratchet housing; 4. an iron bushing; 5. a ratchet pawl; 6. a wheel claw groove; 7. a movable limiting component; 71. a T-shaped limiting block; 72. a T-shaped slot; 73. an arc-shaped slot; 74. an auxiliary engaging structure; 741. a telescopic side groove; 742. a spring; 743. a telescopic clamping bead; 744. a circular slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and fig. 2, a first embodiment of the present invention provides a technical solution: the utility model provides a flower-drum ratchet group piece anti-drop structure, including installing separation blade 1 at 3 tip of ratchet casing, a plurality of wheel claw grooves 6 have been seted up to the tip surface of ratchet casing 3, and all install ratchet claw 5 in every wheel claw groove 6, the one end of ratchet claw 5 stretches out to the outside in wheel claw groove 6, the internally mounted of ratchet casing 3 has iron bush 4, and the tip of iron bush 4 stretches out to the outside of ratchet casing 3, separation blade 1 overlaps on iron bush 4 and laminates with the tip surface of ratchet casing 3, and separation blade 1 covers wheel claw groove 6 and shelters from, can play stable spacing effect that blocks to ratchet claw 5, the tip surface of iron bush 4 still overlaps and installs O shape circle 2, O shape circle 2 is made for the rubber material, and O shape circle 2 laminates with separation blade 1, can carry out spacing to separation blade 1, guarantee the installation stability of separation blade 1, the purpose of using O shape circle 2 to fix separation blade 1 is that the fixed size of separation blade 1 is easy to process, need not use the special processing cutter, this flower-drum ratchet group piece structure is when using the wheel group, can overlap separation blade 1 and take place the effectual separation blade 3 in the separation blade 5 and the separation blade 2 of ratchet casing 4 and prevent that separation blade from taking place the trouble again from the separation blade 5, the separation blade 2 laminating of ratchet casing, then the separation blade in the effective separation blade 2, it is difficult to take place the separation blade in the ratchet casing, the separation blade 5, the separation blade 2.

Wherein, the end surface of the iron bush 4 is provided with an annular groove for stable installation of the O-shaped ring 2, and the annular groove corresponds to the O-shaped ring 2.

Example 2

Referring to fig. 1 to 5, a second embodiment of the present invention is shown, which is based on the previous embodiment, except that the movable limiting component 7 can further limit the ratchet pawl 5 to prevent the ratchet pawl 5 from falling off, and the normal operation of the ratchet pawl 5 is not affected.

Specifically, the ratchet pawl further comprises a movable limiting assembly 7 arranged between the blocking piece 1 and the ratchet pawl 5, the movable limiting assembly 7 comprises a T-shaped limiting block 71, a T-shaped slot 72 and an arc-shaped groove 73, the T-shaped slot 72 is formed in the surface of the ratchet housing 3, the bottom end of the T-shaped slot 72 is communicated with the pawl groove 6 and is used for inserting the T-shaped limiting block 71, the arc-shaped groove 73 corresponding to the T-shaped limiting block 71 is formed in the surface of the ratchet pawl 5, the T-shaped limiting block 71 is inserted into the T-shaped slot 72, the bottom end of the T-shaped limiting block 71 penetrates into the arc-shaped groove 73 and can further limit the ratchet pawl 5 without influencing subsequent normal operation of the ratchet pawl 5, after the ratchet pawl 5 is installed into the pawl groove 6, the T-shaped limiting block 71 can be inserted into the T-shaped slot 72, the bottom end of the T-shaped limiting block 71 penetrates into the arc-shaped groove 73, an effective limiting effect can be achieved on the ratchet pawl 5 through the T-shaped limiting block 71 to prevent the ratchet pawl 5 from falling out of the ratchet pawl 6, and when the subsequent ratchet pawl 5 rotates, the movable limiting assembly 7 can not influence the normal operation of the ratchet pawl 5.

The movable limiting assembly 7 further includes an auxiliary engaging structure 74, the auxiliary engaging structure 74 is disposed between the T-shaped limiting block 71 and the T-shaped slot 72, the auxiliary engaging structure 74 includes a telescopic side groove 741, a spring 742, a telescopic bead 743 and a circular groove 744, a telescopic side groove 741 is disposed on a side surface of the T-shaped limiting block 71, and a telescopic bead 743 is movably connected to the telescopic side groove 741 through the spring 742, a circular groove 744 corresponding to the telescopic bead 743 is disposed on an inner wall of the T-shaped slot 72, an end of the telescopic bead 743 penetrates into the circular groove 744, auxiliary limiting after the T-shaped limiting block 71 is inserted can be achieved, installation stability of the T-shaped limiting block 71 itself is ensured, one end of the spring 742 is fixed to the telescopic bead 743, the other end of the spring 742 is fixed to the inner wall of the telescopic side groove 741, when the T-shaped limiting block 71 is inserted into the T-shaped slot 72, the end of the telescopic bead 743 can be squeezed, the end of the telescopic bead 743 is gradually squeezed into the telescopic side groove 741, the spring 742 is compressed until the T-shaped limiting block 71 is completely inserted into the T-shaped slot 72, and the T-shaped limiting block 71 can be pushed out to the limiting pawl 744, and the limiting block 71 can effectively pushes the T-shaped limiting block 71 to push the limiting block 744.

Although 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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flower-drum ratchet group piece anti-drop structure which characterized in that: including installing separation blade (1) at ratchet casing (3) tip, a plurality of wheel claw grooves (6) have been seted up on the tip surface of ratchet casing (3), and all install ratchet claw (5) in every wheel claw groove (6), the outside of wheel claw groove (6) is stretched out to the one end of ratchet claw (5), the internally mounted of ratchet casing (3) has iron bush (4), and the tip of iron bush (4) stretches out to the outside of ratchet casing (3), separation blade (1) cover is laminated on iron bush (4) and with the tip surface of ratchet casing (3) mutually, and separation blade (1) cover wheel claw groove (6) and shelter from, the tip surface of iron bush (4) still overlaps to establish and installs O shape circle (2), and O shape circle (2) laminate mutually with separation blade (1).

2. The anti-drop structure of the ratchet wheel set claw piece of the hub as claimed in claim 1, wherein: and the end surface of the iron bushing (4) is provided with an annular groove, and the annular groove corresponds to the O-shaped ring (2).

3. The anti-drop structure of the ratchet wheel set claw piece of the hub as claimed in claim 1, wherein: the ratchet wheel is characterized by further comprising a movable limiting component (7) arranged between the separation blade (1) and the ratchet claw (5), wherein the movable limiting component (7) comprises a T-shaped limiting block (71), a T-shaped slot (72) and an arc-shaped groove (73).

4. The anti-drop structure of the ratchet wheel set claw piece of the hub as claimed in claim 3, wherein: the T-shaped slot (72) is formed in the surface of the ratchet casing (3), the bottom end of the T-shaped slot (72) is communicated with the pawl groove (6), the arc-shaped groove (73) is formed in the surface of the ratchet pawl (5), the T-shaped limiting block (71) is inserted into the T-shaped slot (72), and the bottom end of the T-shaped limiting block (71) penetrates into the arc-shaped groove (73).

5. The anti-drop structure of the ratchet wheel set claw piece of the hub as claimed in claim 3, wherein: the movable limiting component (7) further comprises an auxiliary clamping structure (74), and the auxiliary clamping structure (74) is arranged between the T-shaped limiting block (71) and the T-shaped slot (72).

6. The anti-drop structure of a ratchet wheel set claw piece of a hub according to claim 5, wherein: supplementary block structure (74) is including flexible side groove (741), spring (742), flexible card pearl (743) and circular draw-in groove (744), flexible side groove (741) have been seted up to a side surface of T shape stopper (71), and have flexible card pearl (743) through spring (742) swing joint in flexible side groove (741), circular draw-in groove (744) have been seted up to one side inner wall of T shape slot (72), the tip of flexible card pearl (743) runs through to in the circular draw-in groove (744).

7. The anti-drop structure of the ratchet wheel set claw piece of the hub as claimed in claim 6, wherein: one end of the spring (742) is fixed with the telescopic clamping bead (743), and the other end of the spring (742) is fixed on the inner wall of the telescopic side groove (741).