CN221251618U - Braking device - Google Patents
Braking device Download PDFInfo
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- CN221251618U CN221251618U CN202323486679.3U CN202323486679U CN221251618U CN 221251618 U CN221251618 U CN 221251618U CN 202323486679 U CN202323486679 U CN 202323486679U CN 221251618 U CN221251618 U CN 221251618U
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- connecting plate
- positioning shaft
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- shaft
- clamping groove
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- 238000009434 installation Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of braking, in particular to a braking device which is provided with a positioning shaft, a first braking piece and a second braking piece; the positioning shaft comprises a connecting shaft, and a first baffle and a second baffle which are respectively arranged at two ends of the connecting shaft; one end of the first braking piece and one end of the second braking piece are respectively provided with a first connecting plate and a second connecting plate which are arc-shaped; the first connecting plate and the second connecting plate are in rotary fit on the connecting shaft, and the positioning shaft is provided with a first clamping part; the first connecting plate and/or the second connecting plate are/is provided with a second clamping part which is matched with the first clamping part in a clamping way; according to the utility model, the solid structure is arranged between the first connecting plate and/or the second connecting plate and the positioning shaft for connection, so that the first connecting plate and/or the second connecting plate are limited in the axial direction of the positioning shaft, and when the vehicle is in a special environment, the stability of the first connecting plate and/or the second connecting plate matched with the positioning shaft can be kept, and the stability and the safety of the whole mechanism are improved.
Description
Technical Field
The utility model relates to the technical field of braking, in particular to a braking device.
Background
In the two-wheel and three-wheel industries, drum brakes are generally used for braking vehicles.
The existing related drum brake structure comprises a positioning shaft, a first brake piece, a second brake piece and a driving shaft, wherein one ends of the first brake piece and the second brake piece are all abutted on the positioning shaft, the other ends of the first brake piece and the second brake piece are all abutted on the driving shaft, and the first brake piece and the second brake piece rotate around the positioning shaft through rotation of the driving shaft, so that extrusion of the first brake piece and the second brake piece to wheel hubs is achieved, and braking of a vehicle is achieved, as shown in fig. 1.
As disclosed in chinese patent No. CN218022041U, a drum brake, a wheel and a scooter are provided with a rotating groove at one end of a first brake member and one end of a second brake member, and an elastic member is disposed between the first brake member and the second brake member, so that one end of the first brake member and one end of the second brake member are abutted against a positioning shaft.
However, since the first braking member and the second braking member are connected to the positioning shaft without any physical structure, the stability of the running fit between the first braking member and the second braking member and the positioning shaft is poor, and the following problems are easy to occur:
1. When the first braking member and the second braking member are opened to a large extent such that one end of the first braking member and one end of the second braking member are abutted, the first braking member and the second braking member have a risk of falling off from the positioning shaft.
2. When the vehicle is in a special environment, such as a fall or an impact, one end of the first braking member and/or one end of the second braking member is at risk of falling off from the positioning shaft.
Disclosure of utility model
The present utility model provides a brake device, which solves the above-mentioned problems occurring in the prior art.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
A brake device has a positioning shaft, a first brake member and a second brake member; the positioning shaft comprises a connecting shaft, and a first baffle and a second baffle which are respectively arranged at two ends of the connecting shaft; one end of the first braking piece and one end of the second braking piece are respectively provided with a first connecting plate and a second connecting plate which are arc-shaped; the first connecting plate and the second connecting plate are in running fit on the connecting shaft, and further comprise,
The positioning shaft is provided with a first clamping part; the first connecting plate and/or the second connecting plate are/is provided with a second clamping part which is matched with the first clamping part in a clamping way.
Preferably, the first clamping part is a bump; the second clamping part is a groove; when the first connecting plate and/or the second connecting plate rotate around the positioning shaft, the protruding block is clamped in the groove.
Preferably, the projection and the groove each extend in a circumferential direction of the positioning shaft and are annular.
Preferably, the first clamping part comprises a first clamping groove and a movable piece; the second clamping part comprises a second clamping groove;
the movable piece is respectively connected in the first clamping groove and the second clamping groove in a clamping way;
When the first connecting plate and/or the second connecting plate rotate around the positioning shaft, the movable piece can reduce friction resistance.
Preferably, the movable member is a bearing.
Preferably, the movable piece is a ball, the ball is movably clamped in the first clamping groove and protrudes out of the surface of the positioning shaft;
in the installation state, the ball stretches into the second clamping groove.
Preferably, a plurality of support blocks are uniformly distributed in the first clamping groove along the circumferential direction of the positioning shaft; the balls are arranged between the adjacent supporting blocks.
The utility model has at least the following beneficial effects:
According to the application, the solid structure is arranged between the first connecting plate and/or the second connecting plate and the positioning shaft for connection, so that the first connecting plate and/or the second connecting plate are limited in the axial direction of the positioning shaft, and when the vehicle is in a special environment, the stability of the first connecting plate and/or the second connecting plate matched with the positioning shaft can be kept, and the stability and the safety of the whole mechanism are improved.
Drawings
FIG. 1 is a schematic view of a related art brake apparatus;
FIG. 2 illustrates an assembled schematic view of a positioning shaft, a first brake member, and a second brake member in some embodiments of the application;
FIG. 3 is a schematic view of a positioning shaft provided with a bump in some embodiments of the application;
FIG. 4 shows a schematic view of a second detent provided with a recess in some embodiments of the present application;
FIG. 5 is a schematic view of a positioning shaft with a first clamping groove according to some embodiments of the present application;
FIG. 6 is a schematic view of a second brake member with a second clamping groove according to some embodiments of the present application;
FIG. 7 shows a cross-sectional view of a positioning shaft and a second web provided with balls in some embodiments of the application;
FIG. 8 shows a cross-sectional view of a positioning shaft provided with balls in some embodiments of the application;
FIG. 9 shows a cross-sectional view of a positioning shaft with balls hidden from view in some embodiments of the application;
FIG. 10 is a schematic view of a positioning shaft, a first stopper and a second stopper with a bump on a first baffle according to some embodiments of the present application;
fig. 11 is a schematic view of a positioning shaft with a bump on a first baffle in some embodiments of the present application.
The names of the parts indicated by the numerical references in the drawings are as follows:
110. Positioning a shaft; 111. a connecting shaft; 112. a first baffle; 113. a second baffle; 120. a first braking member; 121. a first connection plate; 130. a second brake member; 131. a second connecting plate; 140. a drive shaft; 150. a spring; 210. a bump; 220. a groove; 510. a first clamping groove; 610. a second clamping groove; 710. a ball; 810. and a supporting block.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings and examples. It is to be understood that the examples are illustrative of the present utility model and are not intended to be limiting.
Example 1
1-4, A brake apparatus includes a positioning shaft 110, a first brake member 120, a second brake member 130, and a driving shaft 140; the positioning shaft 110 comprises a connecting shaft 111, a first baffle 112 and a second baffle 113, and the first baffle 112 and the second baffle 113 are respectively arranged at two ends of the connecting shaft 111; one end of the first braking member 120 is provided with a first connecting plate 121 having an arc shape, and one end of the second braking member 130 is provided with a second connecting plate 131 having an arc shape; the first braking member 120 and the second braking member 130 are connected through a spring 150, one end of the first braking member 120 and one end of the second braking member 130 are respectively abutted on the connecting shaft 111 through a first connecting plate 121 and a second connecting plate 131 under the tensile force of the spring 150, and the other end of the first braking member 120 and the other end of the second braking member 130 are abutted on the driving shaft 140; in operation, the driving shaft 140 presses the other end of the first braking member 120 and the other end of the second braking member 130 by rotating, so that one end of the first braking member 120 and one end of the second braking member 130 rotate around the positioning shaft 110, the first braking member 120 and the second braking member 130 are opened, and the outer side walls of the first braking member 120 and the second braking member 130 press the wheel hub, thereby realizing the braking effect.
The first baffle 112 and the second baffle 113 respectively arranged at two ends of the connecting shaft 111 can limit the first connecting plate 121 and the second connecting plate 131, so that the first connecting plate 121 and the second connecting plate 131 are prevented from moving along the circumferential direction of the connecting shaft 111, and the first connecting plate 121 and the second connecting plate 131 are prevented from falling off from the connecting shaft 111.
In some embodiments, a first clamping portion is provided on the positioning shaft 110, and a second clamping portion is provided on both the first connecting plate 121 and the second connecting plate 131; when the first brake member 120 and the second brake member 130 are mounted on the positioning shaft 110, the first connecting plate 121 of the first brake member 120 is attached to the connecting shaft 111, and then the second connecting plate 131 of the second brake member 130 is attached to the connecting shaft 111, in the process, the second clamping parts on the first connecting plate 121 and the second connecting plate 131 are in clamping connection with the first clamping parts on the positioning shaft 110, so that the first connecting plate 121 and the second connecting plate 131 can be limited in the axial direction of the connecting shaft 111 by being matched with the first baffle 112 and the second baffle 113; the stability of the connection between the first and second stoppers 120 and 130 and the positioning shaft 110 can be further improved by the snap fit of the first and second snap parts having a physical structure.
It is to be understood that the second clamping portions are provided on both the first connecting plate 121 and the second connecting plate 131, which is not a limitation to the second clamping portions, that is, the second clamping portions may be provided only on the first connecting plate 121, or the second clamping portions may be provided only on the second connecting plate 131.
In some embodiments, the first clamping portion is embodied as a bump 210, and the second clamping portion is embodied as a groove 220; in the process that the first connecting plate 121 of the first brake member 120 is attached to the connecting shaft 111, and the second connecting plate 131 of the second brake member 130 is attached to the connecting shaft 111, the protruding block 210 extends into the groove 220, so that the clamping connection of the first clamping portion and the second clamping portion is realized; when the first connecting plate 121 and/or the second connecting plate 131 have a tendency to separate from the connecting shaft 111 in the axial direction of the connecting shaft 111, the side wall of the groove 220 will resist the side wall of the bump 210, so as to limit the bump 210 by the groove 220, and further limit the first connecting plate 121 and/or the second connecting plate 131, so as to avoid the separation of the first clamping portion and/or the second clamping portion from the positioning shaft 110.
The first connecting plate 121 and/or the second connecting plate 131 can be always located in the groove 220 in the process of rotating around the positioning shaft 110, so that the limit of the first connecting plate 121 and/or the second connecting plate 131 can be always kept, safety is improved, and due to the clamping fit of the first connecting plate 121 and/or the second connecting plate 131, shaking of the first connecting plate 121 and/or the second connecting plate 131 on the positioning shaft 110 can be avoided under the mutually resisting fit of the first connecting plate 210 and the second connecting plate 131, and use stability is improved.
In some embodiments, the protrusion 210 provided on the positioning shaft 110 extends in the circumferential direction of the positioning shaft 110 and is ring-shaped, and the groove 220 provided on the first connection plate 121 and/or the second connection plate 131 extends in the circumferential direction of the positioning shaft 110 and is ring-shaped; it can be appreciated that by providing the annular projection 210 and the recess 220, it is ensured that the projection 210 can always remain in a snap-fit engagement in the recess 220 when the first connecting plate 121 and/or the second connecting plate 131 are rotated about the positioning axis 110.
It should be noted that the bump 210 may be configured as a complete ring shape or an incomplete semicircle shape; and the groove 220 provided on the first connection plate 121 and/or the second connection plate 131 is in the shape of an incomplete ring.
In particular, as shown in connection with fig. 10-11, the first clamping portion may be provided on the connecting shaft 111 and/or the first baffle 112 and/or the second baffle 113; the second clamping portion is disposed at a position of the first connecting plate 121 and/or the second connecting plate 131 corresponding to the first clamping portion.
Example 2
In this embodiment, a brake device is provided, which is different from embodiment 1 in that:
referring to fig. 5 to 6, a first clamping portion is disposed on the positioning shaft 110, a second clamping portion is disposed on the first connecting plate 121 and/or the second connecting plate 131, the first clamping portion is specifically a first clamping groove 510 and a movable member, and the second clamping portion is specifically a second clamping groove 610; in the installation state, the movable member can be respectively connected in the first clamping groove 510 and the second clamping groove 610 in a clamping manner, wherein the first connecting plate 121 and the second connecting plate 131 can keep relative rotation with the positioning shaft 110, and the movable member can reduce friction resistance generated between the first connecting plate 121 and/or the second connecting plate 131 and the positioning shaft 110, so that the relative rotation efficiency between the first connecting plate 121 and/or the second connecting plate 131 and the positioning shaft 110 is improved, and the use is convenient.
In some embodiments, the movable member is specifically a bearing, and an inner ring of the bearing is connected in the first clamping groove 510; when the first connecting plate 121 and/or the second connecting plate 131 are in butt joint with the positioning shaft 110 during installation, the outer ring of the bearing extends into the second clamping groove 610, so that the installation is completed.
Since the inner ring and the outer ring of the bearing are respectively located in the first clamping groove 510 and the second clamping groove 610, the bearing corresponds to the portion of the bump 210 in embodiment 1, so that the bearing realizes the clamping connection between the first connecting plate 121 and/or the second connecting plate 131 and the positioning shaft 110, the inner ring of the bearing and the first clamping groove 510 mutually resist, and the outer ring of the bearing and the second clamping groove 610 mutually resist, so that the position of the first connecting plate 121 and/or the second connecting plate 131 on the positioning shaft 110 can be limited, the shaking of the position of the first connecting plate 121 and/or the second connecting plate 131 in the axial direction of the positioning shaft 110 is avoided, the separation of the first connecting plate 121 and/or the second connecting plate 131 on the positioning shaft 110 is avoided, and the stability and the safety are improved.
Because the inner ring and the outer ring of the bearing can rotate relatively, rolling friction is generated in the process, after the bearing is clamped in the first clamping groove 510 and the second clamping groove 610, the first connecting plate 121 and/or the second connecting plate 131 can rotate relatively with the positioning shaft 110 through the bearing, so that the first connecting plate 121 and/or the second connecting plate 131 can rotate relatively with the positioning shaft 110 in a rolling friction manner, friction resistance is reduced, and the use is convenient.
It is understood that the bearing may be disposed between the first and second connection plates 121 and 131 and the positioning shaft 110, or may be disposed between the first and second connection plates 121 and 131 and the positioning shaft 110;
When the bearing is between the first connection plate 121 or the second connection plate 131 and the positioning shaft 110, the bearing is entirely between the first connection plate 121 or the second connection plate 131 and the positioning shaft 110; when the bearing is positioned between the first connecting plate 121 and the second connecting plate 131 and the positioning shaft 110, the bearing is integrally sleeved in the first clamping groove 510.
Example 3
In this embodiment, a brake device is provided, which is different from embodiment 2 in that:
Referring to fig. 7-9, the movable member is specifically a ball 710, where the ball 710 is clamped in the first clamping groove 510 and a portion of the ball 710 protrudes from the surface of the positioning shaft 110; when the ball bearing assembly is installed, after the first connecting plate 121 and/or the second connecting plate 131 are butted on the positioning shaft 110, the part of the ball bearing 710 protruding from the surface of the positioning shaft 110 stretches into the second clamping groove 610; due to the tendency that the first connecting plate 121 and the second connecting plate 131 are kept against the positioning shaft 110 under the action of the spring 150, the balls 710 can be always kept in the first clamping groove 510 and the second clamping groove 610, so that the balls 710 can play a role in clamping limiting connection of the bump 210 in embodiment 1 and the bearing in embodiment 2, the side walls of the balls 710 can mutually resist against the side walls of the second clamping groove 610, and the first connecting plate 121 and/or the second connecting plate 131 are limited in the axial direction of the positioning shaft 110, so that the stability and safety of the first connecting plate 121 and/or the second connecting plate 131 matched with the positioning shaft 110 are improved.
And the ball 710 is movable in the first clamping groove 510, and the ball 710 can also reciprocate along the extending direction of the first clamping groove 510 while rotating, so that the ball 710 can play a role of reducing friction resistance of the bearing in embodiment 2, so that the motion between the first connecting plate 121 and/or the second connecting plate 131 and the positioning shaft 110 is converted into rolling friction from the original sliding friction, and further, the rotation efficiency between the first connecting plate 121 and/or the second connecting plate 131 and the positioning shaft 110 is improved, and the use is convenient.
In some embodiments, in order to avoid that the balls 710 accumulate at the lowest point of the first clamping groove 510 due to the gravity in the first clamping groove 510, a plurality of supporting blocks 810 are further disposed in the first clamping groove 510, the plurality of supporting blocks 810 are uniformly disposed in the first clamping groove 510 and equally divide the first clamping groove 510 into a plurality of cells, the balls 710 are respectively arranged among the cells, so that the balls 710 can be limited in the corresponding cells under the action of the supporting blocks 810, the balls 710 are uniformly distributed in the first clamping grooves 510, rolling friction between the first connecting plate 121 and/or the second connecting plate 131 and the positioning shaft 110 can be better realized, and the stability is improved.
In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.
Claims (7)
1. A brake device has a positioning shaft, a first brake member and a second brake member; the positioning shaft comprises a connecting shaft, and a first baffle and a second baffle which are respectively arranged at two ends of the connecting shaft; one end of the first braking piece and one end of the second braking piece are respectively provided with a first connecting plate and a second connecting plate which are arc-shaped; the first connecting plate with the second connecting plate normal running fit in on the connecting axle, its characterized in that:
The positioning shaft is provided with a first clamping part; the first connecting plate and/or the second connecting plate are/is provided with a second clamping part which is matched with the first clamping part in a clamping way.
2. A brake apparatus according to claim 1, wherein: the first clamping part is a bump; the second clamping part is a groove; when the first connecting plate and/or the second connecting plate rotate around the positioning shaft, the protruding block is clamped in the groove.
3. A brake apparatus according to claim 2, wherein: the protruding blocks and the grooves extend along the circumferential direction of the positioning shaft and are annular.
4. A brake apparatus according to claim 1, wherein: the first clamping part comprises a first clamping groove and a movable piece; the second clamping part comprises a second clamping groove;
the movable piece is respectively connected in the first clamping groove and the second clamping groove in a clamping way;
When the first connecting plate and/or the second connecting plate rotate around the positioning shaft, the movable piece can reduce friction resistance.
5. The brake apparatus of claim 4, wherein: the movable part is a bearing.
6. The brake apparatus of claim 4, wherein: the movable piece is a ball which is movably clamped in the first clamping groove and protrudes out of the surface of the positioning shaft;
in the installation state, the ball stretches into the second clamping groove.
7. The brake apparatus of claim 6, wherein: a plurality of supporting blocks are uniformly distributed in the first clamping groove along the circumferential direction of the positioning shaft; the balls are arranged between the adjacent supporting blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323486679.3U CN221251618U (en) | 2023-12-20 | 2023-12-20 | Braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323486679.3U CN221251618U (en) | 2023-12-20 | 2023-12-20 | Braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221251618U true CN221251618U (en) | 2024-07-02 |
Family
ID=91632149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323486679.3U Active CN221251618U (en) | 2023-12-20 | 2023-12-20 | Braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221251618U (en) |
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2023
- 2023-12-20 CN CN202323486679.3U patent/CN221251618U/en active Active
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