Disc brake device and vehicle

Abstract

The application provides a disc brake device and a vehicle, and relates to the technical field of vehicle braking. The disc brake device comprises a shell, an elastic member, two brake members and a driving assembly. The shell comprises a shell body and a cover body. The shell body has a mounting cavity, a first opening and a second opening. The first opening and the second opening are oppositely arranged and respectively communicate with the mounting cavity. The cover body is arranged on the shell body to close the first opening. The elastic member and the two brake members are connected and arranged in the mounting cavity and connected with the shell. The driving assembly is arranged on the shell body. The driving assembly is used for driving at least one of the two brake members, so that the two brake members have relative movement towards the center of the mounting cavity along opposite directions intersecting the first opening and the second opening. Through the arrangement, the braking performance of the disc brake device is improved and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of braking technology for vehicles, and in particular to a disc brake device and a vehicle. Background Technology

[0002] Vehicles need to cope with different road conditions and brake through their braking systems.

[0003] In related technologies, vehicles use disc brakes for braking. The disc brakes are mounted on the vehicle's frame and cooperate with brake discs located on the vehicle's wheel hubs.

[0004] However, disc brakes are prone to wear, which reduces their braking performance and lifespan. Utility Model Content

[0005] This application provides a disc brake device and a vehicle, which can at least solve the technical problem of deterioration in braking performance and service life of the disc brake device caused by wear.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] In a first aspect, this application provides a disc brake device, comprising:

[0008] The housing includes a housing body and a cover. The housing body has a mounting cavity, a first opening, and a second opening. The first opening and the second opening are disposed opposite to each other and communicate with the mounting cavity. The cover is disposed on the housing body to close the first opening.

[0009] The system comprises an elastic element and two braking elements, the two braking elements being partially located in the mounting cavity and arranged opposite each other along a direction intersecting the first opening and the second opening; the two ends of the elastic element are respectively connected to the two braking elements, and the elastic element drives the two braking elements to have relative movement along the direction intersecting the first opening and away from the center of the mounting cavity; wherein the ends of the elastic element and the two braking elements facing the first opening extend to the outside of the first opening and are connected to the housing.

[0010] A drive assembly disposed on the housing body, the drive assembly being used to drive at least one of the two brake members to cause the two brake members to have relative movement toward the center of the mounting cavity along relative directions intersecting the first opening and the second opening.

[0011] As an optional implementation, the elastic element has a first connecting hole, and both braking elements have a second connecting hole; the positions of the first connecting hole and the second connecting hole correspond.

[0012] The shell body is provided with a first protrusion, which is located at the first opening. In the direction from the second opening to the first opening, the first protrusion protrudes from the shell body; the first protrusion has a third connecting hole; the third connecting hole corresponds to the position of the first connecting hole.

[0013] The disc brake device further includes a connector, which passes through the first connecting hole, the second connecting hole and the third connecting hole, so that the elastic element and the two braking elements are respectively connected to the shell body.

[0014] As an optional implementation, the elastic element has a first connecting hole, and both braking elements have a second connecting hole; the positions of the first connecting hole and the second connecting hole correspond.

[0015] The cover has a second protrusion on the side opposite to the shell body, protruding from the cover in the direction from the second opening to the first opening; the second protrusion has a fourth connecting hole; the fourth connecting hole corresponds to the position of the first connecting hole.

[0016] The disc brake device further includes a connector, which passes through the first connecting hole, the second connecting hole and the fourth connecting hole, so that the elastic element and the two braking elements are respectively connected to the cover.

[0017] As an optional implementation, the shell body has a mounting portion for connecting to the vehicle frame; wherein the mounting portion has a mounting plane; when the disc brake device is connected to the vehicle frame, the mounting plane abuts against the vehicle frame.

[0018] Wherein, the plane containing the first opening has a first included angle with the mounting plane, the first included angle being less than or equal to 2°; and / or,

[0019] The plane containing the second opening has a second included angle with the mounting plane, and the second included angle is less than or equal to 2°.

[0020] As an optional implementation, the drive assembly includes a push rod, a transmission mechanism, and a crank. The push rod is rotatably and movably connected to the housing body and is positioned along a relative direction intersecting the first opening and the second opening. One end of the push rod abuts against one of the two braking elements, and the other end of the push rod extends to the outside of the housing body and is connected to the crank. The transmission mechanism is disposed between the housing body and the push rod.

[0021] The crank rotates relative to the shell body about a first rotation axis, and drives the push rod to rotate relative to the shell body about a second rotation axis. The push rod moves along the second rotation axis through the transmission mechanism.

[0022] As an optional implementation, the push rod includes an actuating part and a connecting part. Along the opposite direction intersecting the first opening and the second opening, one end of the actuating part is connected to the corresponding brake member, and the other end of the actuating part is connected to the connecting part. The connecting part extends to the outside of the housing body and is connected to the crank on the side opposite to the actuating part.

[0023] The transmission mechanism includes a stationary disc and rollers. The stationary disc is sleeved on the connecting part and connected to the housing body. The rollers are movably disposed between the stationary disc and the end faces opposite to the actuator.

[0024] As an optional implementation, the end face of the stationary disc facing the actuating part and the end face of the actuating part facing the stationary disc both have slides. The slides are correspondingly arranged with the rollers and extend around the second rotation axis. The depth of the slides gradually decreases so that when the push rod rotates relative to the housing body, the push rod moves along the second rotation axis through the slides and the rollers.

[0025] As an optional implementation, the disc brake device further includes an adjusting screw disposed on the housing body; the adjusting screw has a through hole that extends through opposite ends of the adjusting screw along its length.

[0026] The adjusting screw is used to connect to the brake cable conduit of the vehicle via a thread, and the brake cable inside the brake cable conduit passes through the through hole and connects to the crank.

[0027] As an optional implementation, the disc brake device further includes a position adjusting member disposed in the housing and connected to one of the two brake members that is not connected to the drive assembly.

[0028] The position adjustment component is used to adjust the distance between the two braking components along the relative directions intersecting the first opening and the second opening.

[0029] Secondly, this application provides a means of transportation, comprising:

[0030] Frame.

[0031] A wheel hub, which is mounted on the vehicle frame, and has a brake disc.

[0032] A disc brake device, wherein the disc brake device is disposed on the vehicle frame, and the two brake components of the disc brake device are respectively disposed on opposite sides of the brake disc in the thickness direction; wherein the disc brake device is the disc brake device described in any one of the first aspects.

[0033] The disc brake device provided in this application, through the connection between the cover and the main body of the housing, seals the first opening of the main body of the housing. This reduces the communication points between the mounting cavity and the outside of the housing, preventing external dust, mud, and other substances from entering the mounting cavity through the first opening. This avoids external dust, mud, and other substances accelerating the wear of the brake components and brake disc, thereby improving the braking performance of the disc brake device and extending its service life. Simultaneously, it also prevents the disc brake device from jamming and making abnormal noises caused by dust, mud, and other substances, thus improving the user experience.

[0034] In addition to the technical problems solved by this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the disc brake device and vehicle provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of a disc brake device provided in an embodiment of this application;

[0037] Figure 2 An exploded view of the disc brake device provided in the embodiments of this application;

[0038] Figure 3 for Figure 1 Sectional view along axis AA;

[0039] Figure 4A schematic diagram of a housing body in a disc braking device provided in an embodiment of this application;

[0040] Figure 5 for Figure 1 BB-direction sectional view;

[0041] Figure 6 for Figure 1 CC-direction sectional view;

[0042] Figure 7 This is a partial structural diagram of the front wheel of a vehicle provided in an embodiment of this application;

[0043] Figure 8 This is a partial structural diagram of the rear wheel of a vehicle provided in an embodiment of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100-Disc Braking System;

[0046] 110-Shell; 1101-Shell body; 1102-Mounting cavity; 1103-First opening; 1104-Second opening; 1105-First protrusion; 1106-Third connecting hole; 1107-Mounting part; 1108-Mounting plane; 1109-Plug; 1110-Screw; 1111-Fifth connecting hole; 1112-Sixth connecting hole; 1113-Mounting hole;

[0047] 112-Cap;

[0048] 120 - Elastic element; 121 - First connecting hole;

[0049] 130 - Braking component; 131 - First braking component; 132 - Second braking component; 133 - Second connecting hole;

[0050] 140 - Drive assembly; 141 - Push rod; 1411 - Actuator; 1412 - Connecting part;

[0051] 142-Transmission mechanism; 1421-Stationary disc; 1422-Roller; 1423-Slide rail;

[0052] 143-Curved turn;

[0053] 144 - Wire clamp;

[0054] 150 - Connector;

[0055] 160 - Adjusting screw; 161 - Through hole;

[0056] 170 - Position adjustment component;

[0057] 180-Torsion Spring;

[0058] 190-Dust cover;

[0059] 200 - Transportation;

[0060] 210 - Frame;

[0061] 220 - Wheel hub; 221 - Brake disc. Detailed Implementation

[0062] In related technologies, a disc brake device includes a housing and two brake components. The housing has a mounting cavity that extends through opposite sides of the housing. The two brake components enter the mounting cavity through openings in the housing. The two brake components approach each other and clamp the brake disc of the vehicle. Friction is generated between the brake components and the brake disc, thereby braking the vehicle through friction.

[0063] The two brake components clamp the brake disc, generating friction. Both the brake disc and the brake components will experience some wear. Furthermore, the mounting cavity extends through the opposite sides of the housing, allowing dust, mud, and other debris from outside the housing to easily enter the mounting cavity, further aggravating the wear of the brake disc and brake components. This leads to a decrease in the braking performance and service life of the disc brake system.

[0064] In order to overcome the deficiencies in the related technologies, the disc brake device proposed in this application provides a cover on the main body of the housing to close the first opening of the main body, reduce the communication between the mounting cavity and the outside, and block external dust, mud and sand, etc., so as to avoid external dust, mud and sand from aggravating the wear of the brake disc and brake components, thereby improving the braking performance of the disc brake device and extending the service life of the disc brake device.

[0065] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0066] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0067] First, refer to Figure 5 Define: the relative direction of the first opening 1103 and the second opening 1104 is Q, and the relative direction of the intersection of the first opening 1103 and the second opening 1104 is P.

[0068] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This application provides a disc brake device 100, including: a housing 110, an elastic element 120, two brake elements 130 and a drive assembly 140.

[0069] The shell 110 includes a shell body 1101 and a cover 112. The shell body 1101 has a mounting cavity 1102, a first opening 1103 and a second opening 1104. The first opening 1103 and the second opening 1104 are arranged opposite to each other and communicate with the mounting cavity 1102 respectively. The cover 112 is disposed on the shell body 1101 to close the first opening 1103.

[0070] Two braking elements 130 are partially located in the mounting cavity 1102 and are arranged opposite each other along the relative directions intersecting the first opening 1103 and the second opening 1104. The two ends of the elastic element 120 are respectively connected to the two braking elements 130. The elastic element 120 drives the two braking elements 130 so that the two braking elements 130 have relative movement in the relative directions intersecting the first opening 1103 and the second opening 1104 toward the center away from the mounting cavity 1102. The ends of the elastic element 120 and the two braking elements 130 toward the first opening 1103 extend to the outside of the shell body 1101 and are connected to the shell 110.

[0071] A drive assembly 140 is disposed on the housing body 1101. The drive assembly 140 is used to drive at least one of the two brake members 130 so that the two brake members 130 have relative movement toward the center of the mounting cavity 1102 along relative directions intersecting the first opening 1103 and the second opening 1104.

[0072] According to the disc brake device 100 provided in this application embodiment, the first opening 1103 of the housing body 1101 is sealed by the connection between the cover 112 and the housing body 1101. This reduces the communication between the mounting cavity 1102 and the outside of the housing 110, preventing external dust, mud, and other substances from entering the mounting cavity 1102 through the first opening 1103. This avoids the external dust, mud, and other substances from accelerating the wear of the brake component 130 and the brake disc 221, thereby improving the braking performance of the disc brake device 100 and extending its service life. Simultaneously, it also prevents the disc brake device 100 from experiencing movement jamming and abnormal noises caused by dust, mud, and other substances, thus improving the user experience.

[0073] To facilitate understanding of the embodiments of this application by those skilled in the art, the two braking elements 130 are defined as the first braking element 131 and the second braking element 132. The portions of the first braking element 131 and the second braking element 132 that are opposite to each other along the P direction are disposed in the mounting cavity 1102 of the housing body 1101, and the first braking element 131 and the second braking element 132 have relative movement along the P direction.

[0074] Understandably, the drive assembly 140 can drive only the first brake member 131 to move relative to the second brake member 132 along the P direction toward the center of the mounting cavity 1102. Alternatively, the drive assembly 140 can drive only the second brake member 132 to move relative to the first brake member 131 along the P direction toward the center of the mounting cavity 1102. The drive assembly 140 can also drive both the first brake member 131 and the second brake member 132 simultaneously, so that both the first brake member 131 and the second brake member move along the P direction toward the center of the mounting cavity 1102. In this way, the distance between the first brake member 131 and the second brake member 132 along the P direction is reduced to contact the brake disc 221 and form friction, thereby achieving braking of the vehicle 200.

[0075] When the first brake element 131 and the second brake element 132 move towards the center of the mounting cavity 1102 along the P direction, the elastic force of the elastic element 120 acts on the first brake element 131 and the second brake element 132, making the movement of the first brake element 131 and the second brake element 132 towards the center of the mounting cavity 1102 along the P direction smooth and stable. Furthermore, when the vehicle 200 no longer needs to brake, the driving force of the drive assembly 140 on the first brake element 131 and the second brake element 132 disappears, and the elastic force of the elastic element 120 acts on the first brake element 131 and the second brake element 132, causing the first brake element 131 and the second brake element 132 to move towards the side away from the center of the mounting cavity 1102 along the P direction. The distance between the first brake element 131 and the second brake element 132 along the P direction increases, and both the first brake element 131 and the second brake element 132 disengage from the brake disc 221, allowing the vehicle 200 to continue driving.

[0076] It should be noted that the drive component 140 in this embodiment can be a brake cable, or the drive component 140 can also drive the first brake element 131 and / or the second brake element 132 through oil. This embodiment does not require this.

[0077] In addition, in this embodiment, the ends of the elastic member 120 and the two braking members 130 facing the first opening 1103 extend to the outside of the first opening 1103, and the elastic member 120 and the two braking members 130 are respectively connected to the housing 110 outside the first opening 1103. The elastic member 120 and the two braking members 130 can be connected to the housing 110 via a plug-in or hole-shaft connection structure.

[0078] In some embodiments, both the elastic element 120 and the braking element 130 are connected to the housing body 1101, or both the elastic element 120 and the braking element 130 are connected to the cover 112. This embodiment does not make specific requirements in this regard.

[0079] It should be noted that in this embodiment, the two ends of the elastic member 120 are respectively connected to the first braking member 131 and the second braking member 132. The first braking member 131 and the elastic member 120 can be connected by welding, plugging, or other methods. The connection method of the first braking member 131 and the elastic member 120 can be the same as or different from the connection direction of the second braking member 132 and the elastic member 120. This embodiment does not make specific requirements in this regard.

[0080] As an optional implementation, the cover 112 and the shell body 1101 can be connected by snap-fit, plug-in, or other means, or by threaded fasteners. This embodiment does not specify the exact connection method between the cover 112 and the shell body 1101.

[0081] Combination Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As an optional implementation, the elastic member 120 has a first connecting hole 121, and both braking members 130 have second connecting holes 133; the positions of the first connecting hole 121 and the second connecting hole 133 are corresponding; the shell body 1101 is provided with a first protrusion 1105, which is located at the first opening 1103, and protrudes from the shell body 1101 in the direction from the second opening 1104 to the first opening 1103; the first protrusion 1105 has a third connecting hole 1106; the third connecting hole 1106 is corresponding to the position of the first connecting hole 121; the disc brake device 100 also includes a connector 150, which passes through the first connecting hole 121, the second connecting hole 133 and the third connecting hole 1106, so that the elastic member 120 and the two braking members 130 are respectively connected to the shell body 1101.

[0082] As will be understood by those skilled in the art, the direction from the second opening 1104 to the first opening 1103 is the relative direction of the first opening 1103 and the second opening 1104, that is, the direction from the second opening 1104 to the first opening 1103 is the Q direction.

[0083] In some embodiments, the shapes of the first connecting hole 121, the second connecting hole 133, and the third connecting hole 1106 are mutually compatible, and can be regular shapes such as circles, triangles, and squares, or other irregular shapes. The cross-sectional shape of the connector 150 matches the shape of the first connecting hole 121, so that the connector 150 can pass through the first connecting hole 121, the second connecting hole 133, and the third connecting hole 1106, thereby improving the assembly efficiency of the disc brake device 100.

[0084] For example, the first protrusion 1105 can be a protrusion, a protruding plate, etc. The first protrusion 1105 protrudes from the shell body 1101 along the Q direction. The third connecting hole 1106 is provided in the first protrusion 1105. The connector 150 passes through the first connecting hole 121, the second connecting hole 133 and the third connecting hole 1106, realizing the connection of the elastic member 120, the first braking member 131 and the second braking member 132 to the shell body 1101 respectively. In this embodiment, the first protrusion 1105 allows the elastic member 120, the first brake member 131, and the second brake member 132 to be connected to the housing body 1101 outside the mounting cavity 1102. This increases the area of ​​the first brake member 131 and the second brake member 132 in the mounting cavity 1102, that is, the contact area between the first brake member 131 and the second brake member 132 and the brake disc 221 is increased, thereby improving the braking reliability and stability of the disc brake device 100 and further enhancing the braking safety of the vehicle 200.

[0085] As an optional implementation, the elastic member 120 has a first connecting hole 121, and both braking members 130 have second connecting holes 133; the first connecting hole 121 and the second connecting hole 133 are positioned correspondingly; the cover 112 has a second protrusion on the side opposite to the shell body 1101, protruding from the cover 112 in the direction from the second opening 1104 to the first opening 1103; the second protrusion has a fourth connecting hole; the fourth connecting hole is positioned corresponding to the first connecting hole 121; the disc brake device 100 also includes a connector 150, which passes through the first connecting hole 121, the second connecting hole 133 and the fourth connecting hole, so that the elastic member 120 and the two braking members 130 are respectively connected to the cover 112.

[0086] In some embodiments, the shapes of the first connecting hole 121, the second connecting hole 133, and the fourth connecting hole are adapted to each other, and can be regular shapes such as circles, triangles, and squares, or other irregular shapes. The cross-sectional shape of the connector 150 matches the shape of the first connecting hole 121, so that the connector 150 can be inserted into the first connecting hole 121, the second connecting hole 133, and the fourth connecting hole, thereby improving the assembly efficiency of the disc brake device 100.

[0087] For example, the second protrusion can be a protrusion, a protruding plate, etc. The second protrusion protrudes from the cover 112 along the Q direction. The fourth connecting hole is provided in the second protrusion. The connector 150 passes through the first connecting hole 121, the second connecting hole 133, and the fourth connecting hole, realizing the connection of the elastic member 120, the first braking member 131, and the second braking member 132 to the cover 112 respectively. In this embodiment, by setting the second protrusion, the elastic member 120, the first braking member 131, and the second braking member 132 are connected to the cover 112 outside the mounting cavity 1102. This increases the area of ​​the first braking member 131 and the second braking member 132 in the mounting cavity 1102. That is to say, the contact area between the first braking member 131 and the second braking member 132 and the brake disc 221 is increased, thereby improving the braking reliability and stability of the disc brake device 100 and further improving the braking safety of the vehicle 200.

[0088] Combination Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the shell body 1101 has a mounting part 1107, which is used to connect with the frame 210 of the vehicle 200. The mounting part 1107 has a mounting plane 1108, which abuts against the frame 210 when the disc brake device 100 is connected to the frame 210. The plane where the first opening 1103 is located has a first angle with the mounting plane 1108, which is less than or equal to 2°. And / or, the plane where the second opening 1104 is located has a second angle with the mounting plane 1108, which is less than or equal to 2°.

[0089] In some embodiments, the mounting portion 1107 is a protrusion on the outer wall of the shell body 1101. Along the Q direction, the outline of the orthographic projection of the mounting portion 1107 onto the plane where the first opening 1103 is located is square, circular, etc. This embodiment does not require this.

[0090] As will be understood by those skilled in the art, the cover 112 and the shell body 1101 are connected and close the first opening 1103. The brake disc 221 cooperates with the first brake member 131 and the second brake member 132 at the second opening 1104. The plane of the mounting portion 1107 facing the side where the first opening 1103 is located along the Q direction is the mounting plane 1108. Exemplarily, the mounting portion 1107 and the frame 210 can be connected by snap-fit ​​or plug-in methods, or the mounting portion 1107 and the frame 210 can be connected by threaded connectors. This embodiment does not specify any particular requirements for this connection.

[0091] It is easy to understand that the first included angle in this embodiment can be 0°, 0.5°, 1°, 1.5°, 2°, etc., and this embodiment does not require it. Among them, in the PQ plane, the included angle between the orthographic projection of the plane where the first opening 1103 is located and the orthographic projection of the mounting plane 1108 is the first included angle.

[0092] For example, the second included angle in this embodiment can be 0°, 0.5°, 1°, 1.5°, 2°, etc., and this embodiment does not require it. Among them, in the PQ plane, the included angle between the orthographic projection of the plane where the second opening 1104 is located and the orthographic projection of the mounting plane 1108 is the second included angle.

[0093] In some embodiments, the first included angle and the second included angle may be the same or different. When the first included angle is 0° and the second included angle is 0°, the plane containing the first opening 1103, the plane containing the second opening 1104, and the mounting plane 1108 are parallel to each other.

[0094] When the first included angle is greater than 0° and less than or equal to 2°, the plane containing the first opening 1103 is approximately parallel to the mounting plane 1108. When the second included angle is greater than 0° and less than or equal to 2°, the plane containing the second opening 1104 is approximately parallel to the mounting plane 1108.

[0095] When the disc brake device 100 is assembled into the vehicle 200, the first brake element 131, the second brake element 132, and the elastic element 120 have already been assembled into the housing body 1101 or the cover 112. The cover 112 and the housing body 1101 are not yet connected, and the first opening 1103 is not yet closed. The brake disc 221 is then inserted between the first brake element 131 and the second brake element 132 through the second opening 1104, passing through the surface of the first opening 1103, the surface of the second opening 1104, and the mounting plane 1108. The parallel or near-parallel arrangement of the brake disc 221 with the first brake element 131 and the second brake element 132 allows the operator to easily observe the relative positions of the brake disc 221 with the first brake element 131 and the second brake element 132 through the first opening 1103 during assembly. This prevents interference between the brake disc 221 and the first and / or second brake elements 131 and 132 due to improper assembly, thereby improving the ease of assembly of the disc brake device 100 and the vehicle 200. After the first brake element 131 and the second brake element 132 are assembled in place relative to the brake disc 221, the cover 112 and the shell body 1101 can be connected.

[0096] Combination Figures 1 to 5As an optional implementation, the drive assembly 140 includes a push rod 141, a transmission mechanism 142, and a crank 143. The push rod 141 is rotatably and movably connected to the housing body 1101 and moves along a relative direction intersecting the first opening 1103 and the second opening 1104. One end of the push rod 141 abuts against one of the two brake members 130, and the other end of the push rod 141 extends to the outside of the housing body 1101 and is connected to the crank 143. The transmission mechanism 142 is disposed between the housing body 1101 and the push rod 141. The crank 143 rotates relative to the housing body 1101 about a first rotation axis and drives the push rod 141 to rotate relative to the housing body 1101 about a second rotation axis. The push rod 141 moves along the second rotation axis through the transmission mechanism 142.

[0097] For example, in this embodiment, the drive assembly 140 is disposed on the housing body 1101 and located on the side of the second brake member 132 opposite to the first brake member 131. The housing body 1101 has a sixth connecting hole 1112, which communicates with the mounting cavity 1102. The push rod 141 is partially located in the sixth connecting hole 1112, and the side of the push rod 141 opposite to the second brake member 132 extends to the outside of the housing body 1101 and is connected to the crank 143.

[0098] For example, the transmission mechanism 142 is disposed between the housing body 1101 and the push rod 141. The push rod 141 converts the rotation of the crank 143 around the first rotation axis into linear motion through the transmission mechanism 142. It can be understood that when the crank 143 rotates clockwise around the first rotation axis, it drives the push rod 141 to rotate clockwise around the second rotation axis. At this time, the push rod 141 rotates relative to the transmission mechanism 142 around the second rotation axis. Under the action of the transmission mechanism 142, the push rod 141 moves towards the second brake member 132 along the P direction, further pushing the second brake member 132 to move towards the center of the mounting cavity 1102 along the P direction, so that the distance between the first brake member 131 and the second brake member 132 along the P direction decreases, and gradually forms a braking effect on the brake disc 221 between the first brake member 131 and the second brake member 132.

[0099] When the crank 143 rotates counterclockwise around the first rotation axis, it drives the push rod 141 to rotate counterclockwise around the second rotation axis. The push rod 141 rotates relative to the transmission mechanism 142 around the second rotation axis. Under the action of the transmission mechanism 142, the push rod 141 moves along the P direction toward the side away from the second brake member 132. Under the elastic force of the elastic member 120, the second brake member 132 moves along the P direction toward the side where the push rod 141 is located, so that the distance between the first brake member 131 and the second brake member 132 along the P direction increases, thereby gradually releasing the brake disc 221.

[0100] In this embodiment, the transmission mechanism 142 and the shell body 1101 can be fixedly connected, that is, there is no relative movement between the transmission mechanism 142 and the shell body 1101. The transmission structure and the push rod 141 can be connected by threads so that when the push rod 141 rotates around the second rotation axis, it can also move in the P direction.

[0101] It should also be noted that in this embodiment, the first rotation axis and the second rotation axis can be arranged to coincide, or, along the P direction, there is a gap between the orthogonal projection of the first rotation axis on the second brake member 132 and the orthogonal projection of the second rotation axis on the second brake member 132. This embodiment does not make specific requirements in this regard.

[0102] Combination Figure 1 , Figure 2 and Figure 5 As an optional implementation, the push rod 141 includes an actuating part 1411 and a connecting part 1412. Along the relative direction intersecting the first opening 1103 and the second opening 1104, one end of the actuating part 1411 is connected to the corresponding brake member 130, and the other end of the actuating part 1411 is connected to the connecting part 1412. The connecting part 1412 extends to the outside of the housing body 1101 and is connected to the crank 143 on the side away from the actuating part 1411. The transmission mechanism 142 includes a stationary disc 1421 and a roller 1422. The stationary disc 1421 is sleeved on the connecting part 1412 and connected to the housing body 1101. The roller 1422 is movably disposed between the opposite end faces of the stationary disc 1421 and the actuating part 1411.

[0103] For example, in this embodiment, the execution part 1411 and the connecting part 1412 can be integrally formed, or the execution part 1411 and the connecting part 1412 can be two independent structural parts. The connecting part 1412 and the execution part 1411 are connected by threads or by plug-in connection. This embodiment does not require this.

[0104] In some embodiments, the stationary disc 1421 is fitted onto the connecting portion 1412. The outer peripheral wall of the stationary disc 1421 may be knurled, and the outer peripheral wall of the stationary disc 1421 and the wall of the sixth connecting hole 1112 are interference-fitted to ensure no relative movement between the stationary disc 1421 and the shell body 1101. Alternatively, the outer peripheral wall of the stationary disc 1421 may have a protrusion, and the wall of the second connecting hole 133 may have a groove. The connection between the protrusion and the groove allows the stationary disc 1421 to be connected to the shell body 1101, ensuring no relative movement between the stationary disc 1421 and the shell body 1101. It should be noted that the connection method between the stationary disc 1421 and the shell body 1101 is not limited to the above examples.

[0105] It is easy to understand that a roller 1422 is movably disposed between the end faces of the stationary disc 1421 and the actuator 1411 facing each other in the P direction. Through the arrangement of the roller 1422, rolling friction is formed between the stationary disc 1421 and the actuator 1411 to reduce the friction between the stationary disc 1421 and the actuator 1411, so that the braking response of the disc brake device 100 is sensitive and reliable.

[0106] It should be noted that in this embodiment, the stationary plate 1421 and the connecting part 1412 can be connected by threads or by protrusions and helical grooves, so that the push rod 141 can rotate around the first rotation axis and move along the P direction at the same time.

[0107] As an optional implementation method, combined with Figure 1 , Figure 2 , Figure 3 and Figure 5 The end face of the stationary disc 1421 facing the actuator 1411 and the end face of the actuator 1411 facing the stationary disc 1421 both have slide rails 1423. The slide rails 1423 are correspondingly arranged with the rollers 1422, and the slide rails 1423 extend around the second rotation axis. The depth of the slide rails 1423 gradually decreases so that when the push rod 141 rotates relative to the housing body 1101, the push rod 141 moves along the second rotation axis through the slide rails 1423 and the rollers 1422.

[0108] In this embodiment, the position of the roller 1422 can be restricted by the setting of the slide rail 1423, preventing the position of the roller 1422 from shifting or moving, thereby avoiding the occurrence of movement jamming of the push rod 141 and improving the braking reliability and safety of the disc brake device 100.

[0109] It should be noted that in this embodiment, the number of slides 1423 is the same as the number of rollers 1422, and the inner wall of the slide 1423 is adapted to the shape of the wall of the roller 1422 to ensure that the roller 1422 can move smoothly in the slide 1423, prevent the push rod 141 from getting stuck, and further improve the braking reliability and safety of the disc brake device 100.

[0110] As an optional implementation method, combined with Figure 1 , Figure 2 and Figure 6 The disc brake device 100 also includes an adjusting screw 160, which is disposed on the housing body 1101. The adjusting screw 160 has a through hole 161, which passes through the opposite ends of the adjusting screw 160 along the length direction of the adjusting screw 160. The adjusting screw 160 is used to be threadedly connected to the brake cable conduit (not shown in the figure) of the vehicle 200, and the brake cable (not shown in the figure) in the brake cable conduit passes through the through hole 161 and is connected to the crank 143.

[0111] In this embodiment, a pressure plate 144 is provided at the connection between the crank 143 and the brake cable. The pressure plate 144 and the crank 143 can be fastened together by a threaded connector. Thus, the connection between the pressure plate 144 and the crank 143 is made stable, thereby improving the braking performance and braking safety of the disc brake device 100.

[0112] It should be noted that after the brake cable is connected to the crank 143, the brake cable is in a taut state. When the gap between the first brake element 131, the second brake element 132, and the brake disc 221 increases, that is, the braking stroke of the first brake element 131 and the second brake element 132 increases, it is only necessary to adjust the threaded connection position of the brake cable tube and the adjusting screw 160 to adjust the braking stroke of the first brake element 131 and the second brake element 132, thereby ensuring the braking performance of the disc brake device 100 and further ensuring the braking safety of the disc brake device 100.

[0113] As an optional implementation method, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The disc brake device 100 also includes a dust cover 190, which is disposed inside the sixth connecting hole 1112 and sleeved on the connecting part 1412 of the push rod 141. Along the P direction, the two end faces of the dust cover 190 abut against the crank 143 and the inner wall of the sixth connecting hole 1112, respectively, to prevent external dust, mud, etc. from entering the sixth connecting hole 1112 from here.

[0114] The disc brake device 100 in this embodiment also includes a torsion spring 180, which is disposed between the dust cover 190 and the housing 110. The torsion spring 180 keeps the dust cover 190 in contact with the crank 143 through its elastic force. At the same time, the torsion spring 180 can also move the crank 143 away from the housing body 1101 through its elastic force and restore it to its initial position before braking.

[0115] Combination Figures 1 to 5 In this embodiment, the disc brake device 100 further includes a position adjustment member 170, which is disposed in the housing 110 and connected to the brake member 130 that is not connected to the drive assembly 140. The position adjustment member 170 is used to adjust the distance between the two brake members 130 along the relative directions intersecting the first opening 1103 and the second opening 1104.

[0116] The housing 110 has a fifth connecting hole 1111. Along the P direction, the fifth connecting hole 1111 and the sixth connecting hole 1112 are arranged opposite to each other, and the fifth connecting hole 1111 communicates with the mounting cavity 1102. The position adjusting member 170 is installed in the fifth connecting hole 1111. The position adjusting member 170 can be threadedly connected to the hole wall of the fifth connecting hole 1111, or the position adjusting member 170 can be slidably connected to the hole wall of the fifth connecting hole 1111, so as to realize the position movement of the position adjusting member 170 along the P direction.

[0117] Understandably, when the position adjusting member 170 moves along the P direction toward the first brake member 131, it pushes the first brake member 131 toward the second brake member 132, thereby reducing the gap between the first brake member 131 and the second brake member 132. When the position adjusting member 170 moves along the P direction toward the side away from the first brake member 131, the first brake member 131 moves toward the side where the position adjusting member 170 is located under the action of the elastic member 120, thereby increasing the gap between the first brake member 131 and the second brake member 132. Thus, by setting the position adjusting member 170, the braking stroke of the disc brake device 100 can be adjusted, thereby ensuring the braking stability and braking safety of the disc brake device 100.

[0118] As an optional implementation, the disc brake device 100 in this embodiment further includes a rubber plug 1109 and a screw 1110. The side wall of the housing body 1101 has a mounting hole 1113, which penetrates the side wall of the housing body 1101. The rubber plug and the screw 1110 are disposed in the mounting hole 1113. Along the axial direction of the mounting hole 1113, the opposite ends of the rubber plug abut against the screw 1110 and the position adjustment member 170, respectively.

[0119] Secondly, embodiments of this application also provide a vehicle 200, including: a frame 210, a wheel hub 220, and a disc brake device 100. The wheel hub 220 is disposed on the frame 210 and has a brake disc 221; the disc brake device 100 is disposed on the frame 210, and the two brake elements 130 of the disc brake device 100 are respectively disposed on opposite sides in the thickness direction of the brake disc 221; wherein, the disc brake device 100 is the disc brake device 100 provided in the first aspect.

[0120] In this embodiment, the vehicle 200 can be a bicycle, an electric bicycle, a scooter, etc., and there are no specific requirements.

[0121] The following explanation uses the scooter as an example of transportation vehicle 200.

[0122] See Figure 7The scooter's front fork (frame 210) is connected to the front wheel, and the front wheel hub 220 is equipped with a brake disc 221. The disc brake device 100 is connected to the front fork and engages with the brake disc 221 for braking. The disc brake device 100 drive assembly 140 and the scooter's brake lever are connected via a brake cable, and squeezing the brake lever can brake the front wheel.

[0123] See Figure 8 The scooter's rear fork (frame 210) is connected to the rear wheel, and the rear wheel hub 220 is equipped with a brake disc 221. The disc brake device 100 is connected to the rear fork and engages with the brake disc 221 for braking. The disc brake device 100 drive assembly 140 and the scooter's brake lever are connected via a brake cable, and squeezing the brake lever can brake the rear wheel.

[0124] The vehicle 200 in this embodiment includes the disc brake device 100 in the aforementioned embodiments. The disc brake device 100 in the first aspect can improve the braking performance of the vehicle 200 and extend the service life of the vehicle 200.

[0125] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not all embodiments necessarily include that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when describing a specific feature, structure, or characteristic in conjunction with embodiments, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0126] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "one" can be understood to convey either singular or plural usage.

[0127] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0128] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A disc brake device, characterized in that, include: A housing (110) includes a housing body (1101) and a cover (112). The housing body (1101) has a mounting cavity (1102), a first opening (1103), and a second opening (1104). The first opening (1103) and the second opening (1104) are arranged opposite to each other and communicate with the mounting cavity (1102). The cover (112) is disposed on the housing body (1101) to close the first opening (1103). An elastic element (120) and two braking elements (130) are provided. The two braking elements (130) are partially located in the mounting cavity (1102) and are arranged opposite to each other along a relative direction intersecting the first opening (1103) and the second opening (1104). The two ends of the elastic element (120) are respectively connected to the two braking elements (130). The elastic element (120) drives the two braking elements (130) to have relative movement along a relative direction intersecting the first opening (1103) and the second opening (1104) toward the center away from the mounting cavity (1102). The ends of the elastic element (120) and the two braking elements (130) toward the first opening (1103) extend to the outside of the first opening (1103) and are connected to the housing (110). A drive assembly (140) is disposed on the housing body (1101) for driving at least one of the two brake members (130) to have relative movement toward the center of the mounting cavity (1102) along opposite directions intersecting the first opening (1103) and the second opening (1104).

2. The disc brake device according to claim 1, characterized in that, The elastic element (120) has a first connecting hole (121), and both braking elements (130) have a second connecting hole (133); the first connecting hole (121) and the second connecting hole (133) are in corresponding positions; The shell body (1101) is provided with a first protrusion (1105), which is located at the first opening (1103) and protrudes from the shell body (1101) in the direction from the second opening (1104) to the first opening (1103). The first protrusion (1105) has a third connecting hole (1106), which corresponds to the position of the first connecting hole (121). The disc brake device (100) further includes a connector (150) which passes through the first connecting hole (121), the second connecting hole (133) and the third connecting hole (1106) so that the elastic member (120) and the two brake members (130) are respectively connected to the shell body (1101).

3. The disc brake device according to claim 1, characterized in that, The elastic element (120) has a first connecting hole (121), and both braking elements (130) have a second connecting hole (133); the first connecting hole (121) and the second connecting hole (133) are in corresponding positions; The cover (112) has a second protrusion on the side opposite to the shell body (1101). The second protrusion protrudes from the cover (112) in the direction from the second opening (1104) to the first opening (1103). The second protrusion has a fourth connecting hole. The fourth connecting hole corresponds to the position of the first connecting hole (121). The disc brake device (100) further includes a connector (150) which passes through the first connecting hole (121), the second connecting hole (133) and the fourth connecting hole, so that the elastic member (120) and the two brake members (130) are respectively connected to the cover (112).

4. The disc brake device according to any one of claims 1-3, characterized in that, The shell body (1101) has a mounting part (1107) for connecting to the frame (210) of the vehicle (200); wherein the mounting part (1107) has a mounting surface (1108); when the disc brake device (100) is connected to the frame (210), the mounting surface (1108) abuts against the frame (210); Wherein, the plane containing the first opening (1103) has a first included angle with the mounting plane (1108), the first included angle being less than or equal to 2°; and / or, The plane containing the second opening (1104) has a second included angle with the mounting plane (1108), the second included angle being less than or equal to 2°.

5. The disc brake device according to any one of claims 1-3, characterized in that, The drive assembly (140) includes a push rod (141), a transmission mechanism (142), and a crank (143). The push rod (141) is rotatably and movably connected to the housing body (1101) along a relative direction intersecting the first opening (1103) and the second opening (1104). One end of the push rod (141) abuts against one of the two brake members (130), and the other end of the push rod (141) extends to the outside of the housing body (1101) and is connected to the crank (143). The transmission mechanism (142) is disposed between the housing body (1101) and the push rod (141). The crank (143) rotates relative to the shell body (1101) around the first rotation axis, and drives the push rod (141) to rotate relative to the shell body (1101) around the second rotation axis. The push rod (141) moves along the second rotation axis through the transmission mechanism (142).

6. The disc brake device according to claim 5, characterized in that, The push rod (141) includes an actuating part (1411) and a connecting part (1412). Along the opposite direction intersecting the first opening (1103) and the second opening (1104), one end of the actuating part (1411) is connected to the corresponding brake (130), and the other end of the actuating part (1411) is connected to the connecting part (1412). The connecting part (1412) extends to the outside of the housing body (1101) on the side away from the actuating part (1411) and is connected to the crank (143). The transmission mechanism (142) includes a stationary disc (1421) and a roller (1422). The stationary disc (1421) is sleeved on the connecting part (1412) and connected to the housing body (1101). The roller (1422) is movably disposed between the end faces of the stationary disc (1421) and the actuator (1411).

7. The disc brake device according to claim 6, characterized in that, The end face of the stationary disc (1421) facing the actuating part (1411) and the end face of the actuating part (1411) facing the stationary disc (1421) both have slides (1423). The slides (1423) are correspondingly arranged with the rollers (1422), and the slides (1423) extend around the second rotation axis. The depth of the slides (1423) gradually decreases so that when the push rod (141) rotates relative to the housing body (1101), the push rod (141) moves along the second rotation axis through the slides (1423) and the rollers (1422).

8. The disc brake device according to claim 5, characterized in that, The disc brake device (100) further includes an adjusting screw (160), which is disposed on the housing body (1101); the adjusting screw (160) has a through hole (161), which passes through the opposite ends of the adjusting screw (160) along the length direction of the adjusting screw (160); The adjusting screw (160) is used to connect to the brake line tube of the vehicle (200) by thread, and the brake line in the brake line tube passes through the through hole (161) and is connected to the crank (143).

9. The disc brake device according to any one of claims 1-3, characterized in that, The disc brake device (100) further includes a position adjustment member (170), which is disposed in the housing (110) and connected to one of the two brake members (130) that is not connected to the drive assembly (140). The position adjustment member (170) is used to adjust the distance between the two braking members (130) along the relative directions intersecting the first opening (1103) and the second opening (1104).

10. A means of transportation, characterized in that, include: Frame (210); A wheel hub (220) is disposed on the frame (210) and has a brake disc (221); A disc brake device (100) is disposed on the vehicle frame (210), and the two brake components (130) of the disc brake device (100) are respectively disposed on opposite sides of the brake disc (221) in the thickness direction; wherein the disc brake device (100) is the disc brake device (100) according to any one of claims 1-9.

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